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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-30 03:18:20 +00:00
trezor-firmware/firmware/usb.c
2015-11-03 16:47:12 +01:00

445 lines
16 KiB
C

/*
* This file is part of the TREZOR project.
*
* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/usb/usbd.h>
#include <libopencm3/usb/hid.h>
#include "trezor.h"
#include "usb.h"
#include "debug.h"
#include "messages.h"
#include "u2f.h"
#include "storage.h"
#include "util.h"
#define ENDPOINT_ADDRESS_IN (0x81)
#define ENDPOINT_ADDRESS_OUT (0x01)
#define ENDPOINT_ADDRESS_DEBUG_IN (0x82)
#define ENDPOINT_ADDRESS_DEBUG_OUT (0x02)
#define ENDPOINT_ADDRESS_U2F_IN (0x83)
#define ENDPOINT_ADDRESS_U2F_OUT (0x03)
static const struct usb_device_descriptor dev_descr = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
.bMaxPacketSize0 = 64,
.idVendor = 0x534c,
.idProduct = 0x0001,
.bcdDevice = 0x0100,
.iManufacturer = 1,
.iProduct = 2,
.iSerialNumber = 3,
.bNumConfigurations = 1,
};
/* got via usbhid-dump from CP2110 */
static const uint8_t hid_report_descriptor[] = {
0x06, 0x00, 0xFF, 0x09, 0x01, 0xA1, 0x01, 0x09, 0x01, 0x75, 0x08, 0x95, 0x40, 0x26, 0xFF, 0x00,
0x15, 0x00, 0x85, 0x01, 0x95, 0x01, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x02,
0x95, 0x02, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x03, 0x95, 0x03, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x04, 0x95, 0x04, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x05, 0x95, 0x05, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x06,
0x95, 0x06, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x07, 0x95, 0x07, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x08, 0x95, 0x08, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x09, 0x95, 0x09, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x0A,
0x95, 0x0A, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x0B, 0x95, 0x0B, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x0C, 0x95, 0x0C, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x0D, 0x95, 0x0D, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x0E,
0x95, 0x0E, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x0F, 0x95, 0x0F, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x10, 0x95, 0x10, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x11, 0x95, 0x11, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x12,
0x95, 0x12, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x13, 0x95, 0x13, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x14, 0x95, 0x14, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x15, 0x95, 0x15, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x16,
0x95, 0x16, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x17, 0x95, 0x17, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x18, 0x95, 0x18, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x19, 0x95, 0x19, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x1A,
0x95, 0x1A, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x1B, 0x95, 0x1B, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x1C, 0x95, 0x1C, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x1D, 0x95, 0x1D, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x1E,
0x95, 0x1E, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x1F, 0x95, 0x1F, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x20, 0x95, 0x20, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x21, 0x95, 0x21, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x22,
0x95, 0x22, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x23, 0x95, 0x23, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x24, 0x95, 0x24, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x25, 0x95, 0x25, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x26,
0x95, 0x26, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x27, 0x95, 0x27, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x28, 0x95, 0x28, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x29, 0x95, 0x29, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x2A,
0x95, 0x2A, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x2B, 0x95, 0x2B, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x2C, 0x95, 0x2C, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x2D, 0x95, 0x2D, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x2E,
0x95, 0x2E, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x2F, 0x95, 0x2F, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x30, 0x95, 0x30, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x31, 0x95, 0x31, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x32,
0x95, 0x32, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x33, 0x95, 0x33, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x34, 0x95, 0x34, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x35, 0x95, 0x35, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x36,
0x95, 0x36, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x37, 0x95, 0x37, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x38, 0x95, 0x38, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x39, 0x95, 0x39, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x3A,
0x95, 0x3A, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x3B, 0x95, 0x3B, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x3C, 0x95, 0x3C, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01,
0x91, 0x02, 0x85, 0x3D, 0x95, 0x3D, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x3E,
0x95, 0x3E, 0x09, 0x01, 0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x3F, 0x95, 0x3F, 0x09, 0x01,
0x81, 0x02, 0x09, 0x01, 0x91, 0x02, 0x85, 0x40, 0x95, 0x01, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x41,
0x95, 0x01, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x42, 0x95, 0x06, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x43,
0x95, 0x01, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x44, 0x95, 0x02, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x45,
0x95, 0x04, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x46, 0x95, 0x02, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x47,
0x95, 0x02, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x50, 0x95, 0x08, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x51,
0x95, 0x01, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x52, 0x95, 0x01, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x60,
0x95, 0x0A, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x61, 0x95, 0x3F, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x62,
0x95, 0x3F, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x63, 0x95, 0x3F, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x64,
0x95, 0x3F, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x65, 0x95, 0x3E, 0x09, 0x01, 0xB1, 0x02, 0x85, 0x66,
0x95, 0x13, 0x09, 0x01, 0xB1, 0x02, 0xC0,
};
static const uint8_t hid_report_descriptor_u2f[] = {
0x06, 0xd0, 0xf1, // USAGE_PAGE (FIDO Alliance)
0x09, 0x01, // USAGE (U2F HID Authenticator Device)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x20, // USAGE (Input Report Data)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26,0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75,0x08, // REPORT_SIZE (8)
0x95,0x40, // REPORT_COUNT (64)
0x81,0x02, // INPUT (Data,Var,Abs)
0x09,0x21, // USAGE (Output Report Data)
0x15,0x00, // LOGICAL_MINIMUM (0)
0x26,0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75,0x08, // REPORT_SIZE (8)
0x95,0x40, // REPORT_COUNT (64)
0x91,0x02, // OUTPUT (Data,Var,Abs)
0xc0 // END_COLLECTION
};
static const struct {
struct usb_hid_descriptor hid_descriptor;
struct {
uint8_t bReportDescriptorType;
uint16_t wDescriptorLength;
} __attribute__((packed)) hid_report;
} __attribute__((packed)) hid_function = {
.hid_descriptor = {
.bLength = sizeof(hid_function),
.bDescriptorType = USB_DT_HID,
.bcdHID = 0x0111,
.bCountryCode = 0,
.bNumDescriptors = 1,
},
.hid_report = {
.bReportDescriptorType = USB_DT_REPORT,
.wDescriptorLength = sizeof(hid_report_descriptor),
}
};
static const struct {
struct usb_hid_descriptor hid_descriptor_u2f;
struct {
uint8_t bReportDescriptorType;
uint16_t wDescriptorLength;
} __attribute__((packed)) hid_report_u2f;
} __attribute__((packed)) hid_function_u2f = {
.hid_descriptor_u2f = {
.bLength = sizeof(hid_function_u2f),
.bDescriptorType = USB_DT_HID,
.bcdHID = 0x0111,
.bCountryCode = 0,
.bNumDescriptors = 1,
},
.hid_report_u2f = {
.bReportDescriptorType = USB_DT_REPORT,
.wDescriptorLength = sizeof(hid_report_descriptor_u2f),
}
};
static const struct usb_endpoint_descriptor hid_endpoints[2] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_OUT,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}};
static const struct usb_interface_descriptor hid_iface[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 0,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = hid_endpoints,
.extra = &hid_function,
.extralen = sizeof(hid_function),
}};
static const struct usb_endpoint_descriptor hid_endpoints_u2f[2] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_U2F_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_U2F_OUT,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}};
static const struct usb_interface_descriptor hid_iface_u2f[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
#if DEBUG_LINK
.bInterfaceNumber = 2,
#else
.bInterfaceNumber = 1,
#endif
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = hid_endpoints_u2f,
.extra = &hid_function_u2f,
.extralen = sizeof(hid_function_u2f),
}};
#if DEBUG_LINK
static const struct usb_endpoint_descriptor hid_endpoints_debug[2] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_DEBUG_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = ENDPOINT_ADDRESS_DEBUG_OUT,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 64,
.bInterval = 1,
}};
static const struct usb_interface_descriptor hid_iface_debug[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = hid_endpoints_debug,
.extra = &hid_function,
.extralen = sizeof(hid_function),
}};
#endif
static const struct usb_interface ifaces[] = {{
.num_altsetting = 1,
.altsetting = hid_iface,
}, {
.num_altsetting = 1,
.altsetting = hid_iface_u2f,
#if DEBUG_LINK
}, {
.num_altsetting = 1,
.altsetting = hid_iface_debug,
#endif
}};
static const struct usb_config_descriptor config = {
.bLength = USB_DT_CONFIGURATION_SIZE,
.bDescriptorType = USB_DT_CONFIGURATION,
.wTotalLength = 0,
#if DEBUG_LINK
.bNumInterfaces = 3,
#else
.bNumInterfaces = 2,
#endif
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = 0x80,
.bMaxPower = 0x32,
.interface = ifaces,
};
static const char *usb_strings[] = {
"SatoshiLabs",
"TREZOR",
(const char *)storage_uuid_str,
};
static int hid_control_request(usbd_device *dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, usbd_control_complete_callback *complete)
{
(void)complete;
(void)dev;
if ((req->bmRequestType != 0x81) ||
(req->bRequest != USB_REQ_GET_DESCRIPTOR) ||
(req->wValue != 0x2200))
return 0;
if (req->wIndex==1) {
debugLog(0, "", "hid_control_request u2f");
*buf = (uint8_t *)hid_report_descriptor_u2f;
*len = sizeof(hid_report_descriptor_u2f);
return 1;
}
debugLog(0, "", "hid_control_request trezor");
/* Handle the HID report descriptor. */
*buf = (uint8_t *)hid_report_descriptor;
*len = sizeof(hid_report_descriptor);
return 1;
}
static volatile char tiny = 0;
static void hid_rx_callback(usbd_device *dev, uint8_t ep)
{
(void)ep;
static uint8_t buf[64] __attribute__ ((aligned(4)));
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_OUT, buf, 64) != 64) return;
debugLog(0, "", "hid_rx_callback");
if (!tiny) {
msg_read(buf, 64);
} else {
msg_read_tiny(buf, 64);
}
}
static void hid_u2f_rx_callback(usbd_device *dev, uint8_t ep)
{
(void)ep;
static uint8_t buf[64] __attribute__ ((aligned(4)));
debugLog(0, "", "hid_u2f_rx_callback");
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_U2F_OUT, buf, 64) != 64) return;
u2fhid_read((const U2FHID_FRAME *)buf);
}
#if DEBUG_LINK
static void hid_debug_rx_callback(usbd_device *dev, uint8_t ep)
{
(void)ep;
static uint8_t buf[64] __attribute__ ((aligned(4)));
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_DEBUG_OUT, buf, 64) != 64) return;
debugLog(0, "", "hid_debug_rx_callback");
if (!tiny) {
msg_debug_read(buf, 64);
} else {
msg_read_tiny(buf, 64);
}
}
#endif
static void hid_set_config(usbd_device *dev, uint16_t wValue)
{
(void)wValue;
usbd_ep_setup(dev, ENDPOINT_ADDRESS_IN, USB_ENDPOINT_ATTR_INTERRUPT, 64, 0);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_OUT, USB_ENDPOINT_ATTR_INTERRUPT, 64, hid_rx_callback);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_U2F_IN, USB_ENDPOINT_ATTR_INTERRUPT, 64, 0);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_U2F_OUT, USB_ENDPOINT_ATTR_INTERRUPT, 64, hid_u2f_rx_callback);
#if DEBUG_LINK
usbd_ep_setup(dev, ENDPOINT_ADDRESS_DEBUG_IN, USB_ENDPOINT_ATTR_INTERRUPT, 64, 0);
usbd_ep_setup(dev, ENDPOINT_ADDRESS_DEBUG_OUT, USB_ENDPOINT_ATTR_INTERRUPT, 64, hid_debug_rx_callback);
#endif
usbd_register_control_callback(
dev,
USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE,
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
hid_control_request);
}
static usbd_device *usbd_dev;
static uint8_t usbd_control_buffer[128];
void usbInit(void)
{
usbd_dev = usbd_init(&otgfs_usb_driver, &dev_descr, &config, usb_strings, 3, usbd_control_buffer, sizeof(usbd_control_buffer));
usbd_register_set_config_callback(usbd_dev, hid_set_config);
}
void usbPoll(void)
{
static uint8_t *data;
// poll read buffer
usbd_poll(usbd_dev);
// write pending data
data = msg_out_data();
if (data) {
while ( usbd_ep_write_packet(usbd_dev, ENDPOINT_ADDRESS_IN, data, 64) != 64 ) {}
}
data = u2f_out_data();
if (data) {
while ( usbd_ep_write_packet(usbd_dev, ENDPOINT_ADDRESS_U2F_IN, data, 64) != 64 ) {}
}
#if DEBUG_LINK
// write pending debug data
data = msg_debug_out_data();
if (data) {
while ( usbd_ep_write_packet(usbd_dev, ENDPOINT_ADDRESS_DEBUG_IN, data, 64) != 64 ) {}
}
#endif
}
void usbReconnect(void)
{
usbd_disconnect(usbd_dev, 1);
delay(1000);
usbd_disconnect(usbd_dev, 0);
}
void usbTiny(char set)
{
tiny = set;
}
void usbDelay(int cycles)
{
while (cycles--) {
usbd_poll(usbd_dev);
}
}