mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-16 11:28:14 +00:00
335 lines
12 KiB
C
335 lines
12 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 "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)
|
|
|
|
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 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 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),
|
|
}};
|
|
|
|
#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,
|
|
#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 = 2,
|
|
#else
|
|
.bNumInterfaces = 1,
|
|
#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,
|
|
void (**complete)(usbd_device *, struct usb_setup_data *))
|
|
{
|
|
(void)complete;
|
|
(void)dev;
|
|
|
|
if ((req->bmRequestType != 0x81) ||
|
|
(req->bRequest != USB_REQ_GET_DESCRIPTOR) ||
|
|
(req->wValue != 0x2200))
|
|
return 0;
|
|
|
|
/* 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);
|
|
}
|
|
}
|
|
|
|
#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);
|
|
#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 ) {}
|
|
}
|
|
#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;
|
|
}
|