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trezorhal: refactor trezor.io USB stuff into more files, add WebUSB

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pull/25/head
Pavol Rusnak 6 years ago
parent ba1a313016
commit 8bf19b4c92
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
16 changed files with 1182 additions and 565 deletions
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108
embed/extmod/modtrezorio/modtrezorio-hid.h
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/// class HID:
/// '''
/// USB HID interface configuration.
/// '''
typedef struct _mp_obj_HID_t {
mp_obj_base_t base;
usb_hid_info_t info;
} mp_obj_HID_t;
/// def __init__(self,
/// iface_num: int,
/// ep_in: int,
/// ep_out: int,
/// report_desc: bytes,
/// subclass: int = 0,
/// protocol: int = 0,
/// polling_interval: int = 1,
/// max_packet_len: int = 64) -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_HID_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_subclass, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_protocol, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_polling_interval, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
{ MP_QSTR_max_packet_len, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 64} },
{ MP_QSTR_report_desc, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t iface_num = vals[0].u_int;
const mp_int_t ep_in = vals[1].u_int;
const mp_int_t ep_out = vals[2].u_int;
const mp_int_t subclass = vals[3].u_int;
const mp_int_t protocol = vals[4].u_int;
const mp_int_t polling_interval = vals[5].u_int;
const mp_int_t max_packet_len = vals[6].u_int;
mp_buffer_info_t report_desc;
mp_get_buffer_raise(vals[7].u_obj, &report_desc, MP_BUFFER_READ);
if (report_desc.buf == NULL || report_desc.len == 0 || report_desc.len > 255) {
mp_raise_ValueError("report_desc is invalid");
}
CHECK_PARAM_RANGE(iface_num, 0, 32)
CHECK_PARAM_RANGE(ep_in, 0, 255)
CHECK_PARAM_RANGE(ep_out, 0, 255)
CHECK_PARAM_RANGE(subclass, 0, 255)
CHECK_PARAM_RANGE(protocol, 0, 255)
CHECK_PARAM_RANGE(polling_interval, 1, 255)
CHECK_PARAM_RANGE(max_packet_len, 64, 64)
mp_obj_HID_t *o = m_new_obj(mp_obj_HID_t);
o->base.type = type;
o->info.rx_buffer = m_new(uint8_t, max_packet_len);
o->info.report_desc = report_desc.buf;
o->info.iface_num = (uint8_t)(iface_num);
o->info.ep_in = (uint8_t)(ep_in);
o->info.ep_out = (uint8_t)(ep_out);
o->info.subclass = (uint8_t)(subclass);
o->info.protocol = (uint8_t)(protocol);
o->info.polling_interval = (uint8_t)(polling_interval);
o->info.max_packet_len = (uint8_t)(max_packet_len);
o->info.report_desc_len = (uint8_t)(report_desc.len);
return MP_OBJ_FROM_PTR(o);
}
/// def iface_num(self) -> int:
/// '''
/// Returns the configured number of this interface.
/// '''
STATIC mp_obj_t mod_trezorio_HID_iface_num(mp_obj_t self) {
mp_obj_HID_t *o = MP_OBJ_TO_PTR(self);
return MP_OBJ_NEW_SMALL_INT(o->info.iface_num);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_HID_iface_num_obj, mod_trezorio_HID_iface_num);
/// def write(self, msg: bytes) -> int:
/// '''
/// Sends message using USB HID (device) or UDP (emulator).
/// '''
STATIC mp_obj_t mod_trezorio_HID_write(mp_obj_t self, mp_obj_t msg) {
mp_obj_HID_t *o = MP_OBJ_TO_PTR(self);
mp_buffer_info_t buf;
mp_get_buffer_raise(msg, &buf, MP_BUFFER_READ);
ssize_t r = usb_hid_write(o->info.iface_num, buf.buf, buf.len);
return MP_OBJ_NEW_SMALL_INT(r);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_HID_write_obj, mod_trezorio_HID_write);
STATIC const mp_rom_map_elem_t mod_trezorio_HID_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_iface_num), MP_ROM_PTR(&mod_trezorio_HID_iface_num_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mod_trezorio_HID_write_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_HID_locals_dict, mod_trezorio_HID_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_HID_type = {
{ &mp_type_type },
.name = MP_QSTR_HID,
.make_new = mod_trezorio_HID_make_new,
.locals_dict = (void*)&mod_trezorio_HID_locals_dict,
};

519
embed/extmod/modtrezorio/modtrezorio-msg.h
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/*
* Copyright (c) Pavol Rusnak, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#include <string.h>
#include <unistd.h>
#include "usb.h"
#include "touch.h"
void pendsv_kbd_intr(void);
void mp_hal_set_vcp_iface(int iface_num);
#define TOUCH_IFACE (255)
#define POLL_READ (0x0000)
#define POLL_WRITE (0x0100)
#define CHECK_PARAM_RANGE(value, minimum, maximum) \
if (value < minimum || value > maximum) { \
mp_raise_ValueError(#value " is out of range"); \
}
/// def poll(ifaces: Iterable[int], list_ref: List, timeout_us: int) -> bool:
/// '''
/// Wait until one of `ifaces` is ready to read or write (using masks
// `io.POLL_READ` and `io.POLL_WRITE`) and assign the result into
/// `list_ref`:
///
/// `list_ref[0]` - the interface number, including the mask
/// `list_ref[1]` - for touch event, tuple of (event_type, x_position, y_position)
/// - for HID read event, received bytes
///
/// If timeout occurs, False is returned, True otherwise.
/// '''
STATIC mp_obj_t mod_trezorio_poll(mp_obj_t ifaces, mp_obj_t list_ref, mp_obj_t timeout_us) {
mp_obj_list_t *ret = MP_OBJ_TO_PTR(list_ref);
if (!MP_OBJ_IS_TYPE(list_ref, &mp_type_list) || ret->len < 2) {
mp_raise_TypeError("invalid list_ref");
}
const mp_uint_t timeout = mp_obj_get_int(timeout_us);
const mp_uint_t deadline = mp_hal_ticks_us() + timeout;
mp_obj_iter_buf_t iterbuf;
for (;;) {
mp_obj_t iter = mp_getiter(ifaces, &iterbuf);
mp_obj_t item;
while ((item = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
const mp_uint_t i = mp_obj_int_get_truncated(item);
const mp_uint_t iface = i & 0x00FF;
const mp_uint_t mode = i & 0xFF00;
if (iface == TOUCH_IFACE) {
const uint32_t evt = touch_read();
if (evt) {
mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(3, NULL));
tuple->items[0] = MP_OBJ_NEW_SMALL_INT((evt >> 24) & 0xFFU); // event type
tuple->items[1] = MP_OBJ_NEW_SMALL_INT((evt >> 12) & 0xFFFU); // x position
tuple->items[2] = MP_OBJ_NEW_SMALL_INT(evt & 0xFFFU); // y position
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = MP_OBJ_FROM_PTR(tuple);
return mp_const_true;
}
} else
if (mode == POLL_READ) {
if (sectrue == usb_hid_can_read(iface)) {
uint8_t buf[64];
int len = usb_hid_read(iface, buf, sizeof(buf));
if (len > 0) {
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = mp_obj_new_bytes(buf, len);
return mp_const_true;
}
}
} else
if (mode == POLL_WRITE) {
if (sectrue == usb_hid_can_write(iface)) {
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = mp_const_none;
return mp_const_true;
}
}
}
if (mp_hal_ticks_us() >= deadline) {
break;
} else {
MICROPY_EVENT_POLL_HOOK
}
}
return mp_const_false;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_trezorio_poll_obj, mod_trezorio_poll);
/// class HID:
/// '''
/// USB HID interface configuration.
/// '''
typedef struct _mp_obj_HID_t {
mp_obj_base_t base;
usb_hid_info_t info;
} mp_obj_HID_t;
/// def __init__(self,
/// iface_num: int,
/// ep_in: int,
/// ep_out: int,
/// report_desc: bytes,
/// subclass: int = 0,
/// protocol: int = 0,
/// polling_interval: int = 1,
/// max_packet_len: int = 64) -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_HID_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_subclass, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_protocol, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_polling_interval, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
{ MP_QSTR_max_packet_len, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 64} },
{ MP_QSTR_report_desc, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t iface_num = vals[0].u_int;
const mp_int_t ep_in = vals[1].u_int;
const mp_int_t ep_out = vals[2].u_int;
const mp_int_t subclass = vals[3].u_int;
const mp_int_t protocol = vals[4].u_int;
const mp_int_t polling_interval = vals[5].u_int;
const mp_int_t max_packet_len = vals[6].u_int;
mp_buffer_info_t report_desc;
mp_get_buffer_raise(vals[7].u_obj, &report_desc, MP_BUFFER_READ);
if (report_desc.buf == NULL || report_desc.len == 0 || report_desc.len > 255) {
mp_raise_ValueError("report_desc is invalid");
}
CHECK_PARAM_RANGE(iface_num, 0, 32)
CHECK_PARAM_RANGE(ep_in, 0, 255)
CHECK_PARAM_RANGE(ep_out, 0, 255)
CHECK_PARAM_RANGE(subclass, 0, 255)
CHECK_PARAM_RANGE(protocol, 0, 255)
CHECK_PARAM_RANGE(polling_interval, 1, 255)
CHECK_PARAM_RANGE(max_packet_len, 64, 64)
mp_obj_HID_t *o = m_new_obj(mp_obj_HID_t);
o->base.type = type;
o->info.rx_buffer = m_new(uint8_t, max_packet_len);
o->info.report_desc = report_desc.buf;
o->info.iface_num = (uint8_t)(iface_num);
o->info.ep_in = (uint8_t)(ep_in);
o->info.ep_out = (uint8_t)(ep_out);
o->info.subclass = (uint8_t)(subclass);
o->info.protocol = (uint8_t)(protocol);
o->info.polling_interval = (uint8_t)(polling_interval);
o->info.max_packet_len = (uint8_t)(max_packet_len);
o->info.report_desc_len = (uint8_t)(report_desc.len);
return MP_OBJ_FROM_PTR(o);
}
/// def iface_num(self) -> int:
/// '''
/// Returns the configured number of this interface.
/// '''
STATIC mp_obj_t mod_trezorio_HID_iface_num(mp_obj_t self) {
mp_obj_HID_t *o = MP_OBJ_TO_PTR(self);
return MP_OBJ_NEW_SMALL_INT(o->info.iface_num);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_HID_iface_num_obj, mod_trezorio_HID_iface_num);
/// def write(self, msg: bytes) -> int:
/// '''
/// Sends message using USB HID (device) or UDP (emulator).
/// '''
STATIC mp_obj_t mod_trezorio_HID_write(mp_obj_t self, mp_obj_t msg) {
mp_obj_HID_t *o = MP_OBJ_TO_PTR(self);
mp_buffer_info_t buf;
mp_get_buffer_raise(msg, &buf, MP_BUFFER_READ);
ssize_t r = usb_hid_write(o->info.iface_num, buf.buf, buf.len);
return MP_OBJ_NEW_SMALL_INT(r);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_HID_write_obj, mod_trezorio_HID_write);
STATIC const mp_rom_map_elem_t mod_trezorio_HID_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_iface_num), MP_ROM_PTR(&mod_trezorio_HID_iface_num_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mod_trezorio_HID_write_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_HID_locals_dict, mod_trezorio_HID_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_HID_type = {
{ &mp_type_type },
.name = MP_QSTR_HID,
.make_new = mod_trezorio_HID_make_new,
.locals_dict = (void*)&mod_trezorio_HID_locals_dict,
};
/// class VCP:
/// '''
/// USB VCP interface configuration.
/// '''
typedef struct _mp_obj_VCP_t {
mp_obj_base_t base;
usb_vcp_info_t info;
} mp_obj_VCP_t;
/// def __init__(self,
/// iface_num: int,
/// data_iface_num: int,
/// ep_in: int,
/// ep_out: int,
/// ep_cmd: int) -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_VCP_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_data_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_cmd, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t iface_num = vals[0].u_int;
const mp_int_t data_iface_num = vals[1].u_int;
const mp_int_t ep_in = vals[2].u_int;
const mp_int_t ep_out = vals[3].u_int;
const mp_int_t ep_cmd = vals[4].u_int;
CHECK_PARAM_RANGE(iface_num, 0, 32)
CHECK_PARAM_RANGE(data_iface_num, 0, 32)
CHECK_PARAM_RANGE(ep_in, 0, 255)
CHECK_PARAM_RANGE(ep_out, 0, 255)
CHECK_PARAM_RANGE(ep_cmd, 0, 255)
const size_t vcp_buffer_len = 1024;
const size_t vcp_packet_len = 64;
mp_obj_VCP_t *o = m_new_obj(mp_obj_VCP_t);
o->base.type = type;
o->info.tx_packet = m_new(uint8_t, vcp_packet_len);
o->info.tx_buffer = m_new(uint8_t, vcp_buffer_len);
o->info.rx_packet = m_new(uint8_t, vcp_packet_len);
o->info.rx_buffer = m_new(uint8_t, vcp_buffer_len);
o->info.tx_buffer_len = vcp_buffer_len;
o->info.rx_buffer_len = vcp_buffer_len;
o->info.rx_intr_fn = pendsv_kbd_intr;
o->info.rx_intr_byte = 3; // Ctrl-C
o->info.iface_num = (uint8_t)(iface_num);
o->info.data_iface_num = (uint8_t)(data_iface_num);
o->info.ep_cmd = (uint8_t)(ep_cmd);
o->info.ep_in = (uint8_t)(ep_in);
o->info.ep_out = (uint8_t)(ep_out);
o->info.polling_interval = 10;
o->info.max_packet_len = (uint8_t)(vcp_packet_len);
return MP_OBJ_FROM_PTR(o);
}
/// def iface_num(self) -> int:
/// '''
/// Returns the configured number of this interface.
/// '''
STATIC mp_obj_t mod_trezorio_VCP_iface_num(mp_obj_t self) {
mp_obj_VCP_t *o = MP_OBJ_TO_PTR(self);
return MP_OBJ_NEW_SMALL_INT(o->info.iface_num);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_VCP_iface_num_obj, mod_trezorio_VCP_iface_num);
STATIC const mp_rom_map_elem_t mod_trezorio_VCP_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_iface_num), MP_ROM_PTR(&mod_trezorio_VCP_iface_num_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_VCP_locals_dict, mod_trezorio_VCP_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_VCP_type = {
{ &mp_type_type },
.name = MP_QSTR_VCP,
.make_new = mod_trezorio_VCP_make_new,
.locals_dict = (void*)&mod_trezorio_VCP_locals_dict,
};
enum {
USB_CLOSED = 0,
USB_OPENED = 1,
};
/// class USB:
/// '''
/// USB device configuration.
/// '''
typedef struct _mp_obj_USB_t {
mp_obj_base_t base;
mp_obj_list_t ifaces;
usb_dev_info_t info;
mp_int_t state;
} mp_obj_USB_t;
static const char *get_0str(mp_obj_t o, size_t min_len, size_t max_len) {
size_t len;
const char *s = mp_obj_str_get_data(o, &len);
if ((len >= min_len) && (len <= max_len)) {
if (len == 0 && s == NULL) {
return "";
} else {
return s;
}
} else {
return NULL;
}
}
/// def __init__(self,
/// vendor_id: int,
/// product_id: int,
/// release_num: int,
/// manufacturer: str='',
/// product: str='',
/// serial_number: str='',
/// configuration: str='',
/// interface: str='') -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_USB_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_vendor_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_product_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_release_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_manufacturer, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_product, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_serial_number, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_configuration, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_interface, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t vendor_id = vals[0].u_int;
const mp_int_t product_id = vals[1].u_int;
const mp_int_t release_num = vals[2].u_int;
const char *manufacturer = get_0str(vals[3].u_obj, 0, 32);
const char *product = get_0str(vals[4].u_obj, 0, 32);
const char *serial_number = get_0str(vals[5].u_obj, 0, 32);
const char *configuration = get_0str(vals[6].u_obj, 0, 32);
const char *interface = get_0str(vals[7].u_obj, 0, 32);
CHECK_PARAM_RANGE(vendor_id, 0, 65535)
CHECK_PARAM_RANGE(product_id, 0, 65535)
CHECK_PARAM_RANGE(release_num, 0, 65535)
if (manufacturer == NULL) {
mp_raise_ValueError("manufacturer is invalid");
}
if (product == NULL) {
mp_raise_ValueError("product is invalid");
}
if (serial_number == NULL) {
mp_raise_ValueError("serial_number is invalid");
}
if (configuration == NULL) {
mp_raise_ValueError("configuration is invalid");
}
if (interface == NULL) {
mp_raise_ValueError("interface is invalid");
}
mp_obj_USB_t *o = m_new_obj(mp_obj_USB_t);
o->base.type = type;
o->state = USB_CLOSED;
o->info.vendor_id = (uint16_t)(vendor_id);
o->info.product_id = (uint16_t)(product_id);
o->info.release_num = (uint16_t)(release_num);
o->info.manufacturer = (const uint8_t *)(manufacturer);
o->info.product = (const uint8_t *)(product);
o->info.serial_number = (const uint8_t *)(serial_number);
o->info.configuration = (const uint8_t *)(configuration);
o->info.interface = (const uint8_t *)(interface);
mp_obj_list_init(&o->ifaces, 0);
return MP_OBJ_FROM_PTR(o);
}
/// def add(self, iface: Union[HID, VCP]) -> None:
/// '''
/// Registers passed interface into the USB stack.
/// '''
STATIC mp_obj_t mod_trezorio_USB_add(mp_obj_t self, mp_obj_t iface) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_CLOSED) {
mp_raise_msg(&mp_type_RuntimeError, "already initialized");
}
mp_obj_list_append(MP_OBJ_FROM_PTR(&o->ifaces), iface);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_USB_add_obj, mod_trezorio_USB_add);
/// def open(self) -> None:
/// '''
/// Initializes the USB stack.
/// '''
STATIC mp_obj_t mod_trezorio_USB_open(mp_obj_t self) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_CLOSED) {
mp_raise_msg(&mp_type_RuntimeError, "already initialized");
}
size_t iface_cnt;
mp_obj_t *iface_objs;
mp_obj_get_array(MP_OBJ_FROM_PTR(&o->ifaces), &iface_cnt, &iface_objs);
// Initialize the USB stack
usb_init(&o->info);
int vcp_iface_num = -1;
// Add all interfaces
for (size_t i = 0; i < iface_cnt; i++) {
mp_obj_t iface = iface_objs[i];
if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_HID_type)) {
mp_obj_HID_t *hid = MP_OBJ_TO_PTR(iface);
if (sectrue != usb_hid_add(&hid->info)) {
usb_deinit();
mp_raise_msg(&mp_type_RuntimeError, "failed to add HID interface");
}
} else if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_VCP_type)) {
mp_obj_VCP_t *vcp = MP_OBJ_TO_PTR(iface);
if (sectrue != usb_vcp_add(&vcp->info)) {
usb_deinit();
mp_raise_msg(&mp_type_RuntimeError, "failed to add VCP interface");
}
vcp_iface_num = vcp->info.iface_num;
} else {
usb_deinit();
mp_raise_TypeError("expected HID or VCP type");
}
}
// Start the USB stack
usb_start();
o->state = USB_OPENED;
// If we found any VCP interfaces, use the last one for stdio,
// otherwise disable the stdio support
mp_hal_set_vcp_iface(vcp_iface_num);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB_open_obj, mod_trezorio_USB_open);
/// def close(self) -> None:
/// '''
/// Cleans up the USB stack.
/// '''
STATIC mp_obj_t mod_trezorio_USB_close(mp_obj_t self) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_OPENED) {
mp_raise_msg(&mp_type_RuntimeError, "not initialized");
}
usb_stop();
usb_deinit();
mp_obj_list_set_len(MP_OBJ_FROM_PTR(&o->ifaces), 0);
mp_seq_clear(o->ifaces.items, 0, o->ifaces.alloc, sizeof(*o->ifaces.items));
o->info.vendor_id = 0;
o->info.product_id = 0;
o->info.release_num = 0;
o->info.manufacturer = NULL;
o->info.product = NULL;
o->info.serial_number = NULL;
o->state = USB_CLOSED;
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB_close_obj, mod_trezorio_USB_close);
STATIC mp_obj_t mod_trezorio_USB___del__(mp_obj_t self) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_CLOSED) {
usb_stop();
usb_deinit();
o->state = USB_CLOSED;
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB___del___obj, mod_trezorio_USB___del__);
STATIC const mp_rom_map_elem_t mod_trezorio_USB_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_add), MP_ROM_PTR(&mod_trezorio_USB_add_obj) },
{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mod_trezorio_USB_open_obj) },
{ MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&mod_trezorio_USB_close_obj) },
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_trezorio_USB___del___obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_USB_locals_dict, mod_trezorio_USB_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_USB_type = {
{ &mp_type_type },
.name = MP_QSTR_USB,
.make_new = mod_trezorio_USB_make_new,
.locals_dict = (void*)&mod_trezorio_USB_locals_dict,
};

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/*
* Copyright (c) Pavol Rusnak, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#include <string.h>
#include <unistd.h>
#include "usb.h"
#define TOUCH_IFACE (255)
#define POLL_READ (0x0000)
#define POLL_WRITE (0x0100)
#define CHECK_PARAM_RANGE(value, minimum, maximum) \
if (value < minimum || value > maximum) { \
mp_raise_ValueError(#value " is out of range"); \
}
/// def poll(ifaces: Iterable[int], list_ref: List, timeout_us: int) -> bool:
/// '''
/// Wait until one of `ifaces` is ready to read or write (using masks
// `io.POLL_READ` and `io.POLL_WRITE`) and assign the result into
/// `list_ref`:
///
/// `list_ref[0]` - the interface number, including the mask
/// `list_ref[1]` - for touch event, tuple of (event_type, x_position, y_position)
/// - for USB read event, received bytes
///
/// If timeout occurs, False is returned, True otherwise.
/// '''
STATIC mp_obj_t mod_trezorio_poll(mp_obj_t ifaces, mp_obj_t list_ref, mp_obj_t timeout_us) {
mp_obj_list_t *ret = MP_OBJ_TO_PTR(list_ref);
if (!MP_OBJ_IS_TYPE(list_ref, &mp_type_list) || ret->len < 2) {
mp_raise_TypeError("invalid list_ref");
}
const mp_uint_t timeout = mp_obj_get_int(timeout_us);
const mp_uint_t deadline = mp_hal_ticks_us() + timeout;
mp_obj_iter_buf_t iterbuf;
for (;;) {
mp_obj_t iter = mp_getiter(ifaces, &iterbuf);
mp_obj_t item;
while ((item = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
const mp_uint_t i = mp_obj_int_get_truncated(item);
const mp_uint_t iface = i & 0x00FF;
const mp_uint_t mode = i & 0xFF00;
if (iface == TOUCH_IFACE) {
const uint32_t evt = touch_read();
if (evt) {
mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(3, NULL));
tuple->items[0] = MP_OBJ_NEW_SMALL_INT((evt >> 24) & 0xFFU); // event type
tuple->items[1] = MP_OBJ_NEW_SMALL_INT((evt >> 12) & 0xFFFU); // x position
tuple->items[2] = MP_OBJ_NEW_SMALL_INT(evt & 0xFFFU); // y position
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = MP_OBJ_FROM_PTR(tuple);
return mp_const_true;
}
} else
if (mode == POLL_READ) {
if (sectrue == usb_hid_can_read(iface)) {
uint8_t buf[64];
int len = usb_hid_read(iface, buf, sizeof(buf));
if (len > 0) {
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = mp_obj_new_bytes(buf, len);
return mp_const_true;
}
} else if (sectrue == usb_webusb_can_read(iface)) {
uint8_t buf[64];
int len = usb_webusb_read(iface, buf, sizeof(buf));
if (len > 0) {
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = mp_obj_new_bytes(buf, len);
return mp_const_true;
}
}
} else
if (mode == POLL_WRITE) {
if (sectrue == usb_hid_can_write(iface)) {
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = mp_const_none;
return mp_const_true;
} else if (sectrue == usb_webusb_can_write(iface)) {
ret->items[0] = MP_OBJ_NEW_SMALL_INT(i);
ret->items[1] = mp_const_none;
return mp_const_true;
}
}
}
if (mp_hal_ticks_us() >= deadline) {
break;
} else {
MICROPY_EVENT_POLL_HOOK
}
}
return mp_const_false;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(mod_trezorio_poll_obj, mod_trezorio_poll);

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void mp_hal_set_vcp_iface(int iface_num);
enum {
USB_CLOSED = 0,
USB_OPENED = 1,
};
/// class USB:
/// '''
/// USB device configuration.
/// '''
typedef struct _mp_obj_USB_t {
mp_obj_base_t base;
mp_obj_list_t ifaces;
usb_dev_info_t info;
mp_int_t state;
} mp_obj_USB_t;
static const char *get_0str(mp_obj_t o, size_t min_len, size_t max_len) {
size_t len;
const char *s = mp_obj_str_get_data(o, &len);
if ((len >= min_len) && (len <= max_len)) {
if (len == 0 && s == NULL) {
return "";
} else {
return s;
}
} else {
return NULL;
}
}
/// def __init__(self,
/// vendor_id: int,
/// product_id: int,
/// release_num: int,
/// manufacturer: str='',
/// product: str='',
/// serial_number: str='',
/// configuration: str='',
/// interface: str='') -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_USB_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_vendor_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_product_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_release_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_manufacturer, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_product, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_serial_number, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_configuration, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
{ MP_QSTR_interface, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t vendor_id = vals[0].u_int;
const mp_int_t product_id = vals[1].u_int;
const mp_int_t release_num = vals[2].u_int;
const char *manufacturer = get_0str(vals[3].u_obj, 0, 32);
const char *product = get_0str(vals[4].u_obj, 0, 32);
const char *serial_number = get_0str(vals[5].u_obj, 0, 32);
const char *configuration = get_0str(vals[6].u_obj, 0, 32);
const char *interface = get_0str(vals[7].u_obj, 0, 32);
CHECK_PARAM_RANGE(vendor_id, 0, 65535)
CHECK_PARAM_RANGE(product_id, 0, 65535)
CHECK_PARAM_RANGE(release_num, 0, 65535)
if (manufacturer == NULL) {
mp_raise_ValueError("manufacturer is invalid");
}
if (product == NULL) {
mp_raise_ValueError("product is invalid");
}
if (serial_number == NULL) {
mp_raise_ValueError("serial_number is invalid");
}
if (configuration == NULL) {
mp_raise_ValueError("configuration is invalid");
}
if (interface == NULL) {
mp_raise_ValueError("interface is invalid");
}
mp_obj_USB_t *o = m_new_obj(mp_obj_USB_t);
o->base.type = type;
o->state = USB_CLOSED;
o->info.vendor_id = (uint16_t)(vendor_id);
o->info.product_id = (uint16_t)(product_id);
o->info.release_num = (uint16_t)(release_num);
o->info.manufacturer = (const uint8_t *)(manufacturer);
o->info.product = (const uint8_t *)(product);
o->info.serial_number = (const uint8_t *)(serial_number);
o->info.configuration = (const uint8_t *)(configuration);
o->info.interface = (const uint8_t *)(interface);
mp_obj_list_init(&o->ifaces, 0);
return MP_OBJ_FROM_PTR(o);
}
/// def add(self, iface: Union[HID, VCP, WebUSB]) -> None:
/// '''
/// Registers passed interface into the USB stack.
/// '''
STATIC mp_obj_t mod_trezorio_USB_add(mp_obj_t self, mp_obj_t iface) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_CLOSED) {
mp_raise_msg(&mp_type_RuntimeError, "already initialized");
}
mp_obj_list_append(MP_OBJ_FROM_PTR(&o->ifaces), iface);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_USB_add_obj, mod_trezorio_USB_add);
/// def open(self) -> None:
/// '''
/// Initializes the USB stack.
/// '''
STATIC mp_obj_t mod_trezorio_USB_open(mp_obj_t self) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_CLOSED) {
mp_raise_msg(&mp_type_RuntimeError, "already initialized");
}
size_t iface_cnt;
mp_obj_t *iface_objs;
mp_obj_get_array(MP_OBJ_FROM_PTR(&o->ifaces), &iface_cnt, &iface_objs);
// Initialize the USB stack
usb_init(&o->info);
int vcp_iface_num = -1;
// Add all interfaces
for (size_t i = 0; i < iface_cnt; i++) {
mp_obj_t iface = iface_objs[i];
if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_HID_type)) {
mp_obj_HID_t *hid = MP_OBJ_TO_PTR(iface);
if (sectrue != usb_hid_add(&hid->info)) {
usb_deinit();
mp_raise_msg(&mp_type_RuntimeError, "failed to add HID interface");
}
} else if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_WebUSB_type)) {
mp_obj_WebUSB_t *webusb = MP_OBJ_TO_PTR(iface);
if (sectrue != usb_webusb_add(&webusb->info)) {
usb_deinit();
mp_raise_msg(&mp_type_RuntimeError, "failed to add WebUSB interface");
}
} else if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_VCP_type)) {
mp_obj_VCP_t *vcp = MP_OBJ_TO_PTR(iface);
if (sectrue != usb_vcp_add(&vcp->info)) {
usb_deinit();
mp_raise_msg(&mp_type_RuntimeError, "failed to add VCP interface");
}
vcp_iface_num = vcp->info.iface_num;
} else {
usb_deinit();
mp_raise_TypeError("expected HID, WebUSB or VCP type");
}
}
// Start the USB stack
usb_start();
o->state = USB_OPENED;
// If we found any VCP interfaces, use the last one for stdio,
// otherwise disable the stdio support
mp_hal_set_vcp_iface(vcp_iface_num);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB_open_obj, mod_trezorio_USB_open);
/// def close(self) -> None:
/// '''
/// Cleans up the USB stack.
/// '''
STATIC mp_obj_t mod_trezorio_USB_close(mp_obj_t self) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_OPENED) {
mp_raise_msg(&mp_type_RuntimeError, "not initialized");
}
usb_stop();
usb_deinit();
mp_obj_list_set_len(MP_OBJ_FROM_PTR(&o->ifaces), 0);
mp_seq_clear(o->ifaces.items, 0, o->ifaces.alloc, sizeof(*o->ifaces.items));
o->info.vendor_id = 0;
o->info.product_id = 0;
o->info.release_num = 0;
o->info.manufacturer = NULL;
o->info.product = NULL;
o->info.serial_number = NULL;
o->state = USB_CLOSED;
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB_close_obj, mod_trezorio_USB_close);
STATIC mp_obj_t mod_trezorio_USB___del__(mp_obj_t self) {
mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
if (o->state != USB_CLOSED) {
usb_stop();
usb_deinit();
o->state = USB_CLOSED;
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB___del___obj, mod_trezorio_USB___del__);
STATIC const mp_rom_map_elem_t mod_trezorio_USB_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_add), MP_ROM_PTR(&mod_trezorio_USB_add_obj) },
{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mod_trezorio_USB_open_obj) },
{ MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&mod_trezorio_USB_close_obj) },
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_trezorio_USB___del___obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_USB_locals_dict, mod_trezorio_USB_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_USB_type = {
{ &mp_type_type },
.name = MP_QSTR_USB,
.make_new = mod_trezorio_USB_make_new,
.locals_dict = (void*)&mod_trezorio_USB_locals_dict,
};

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void pendsv_kbd_intr(void);
/// class VCP:
/// '''
/// USB VCP interface configuration.
/// '''
typedef struct _mp_obj_VCP_t {
mp_obj_base_t base;
usb_vcp_info_t info;
} mp_obj_VCP_t;
/// def __init__(self,
/// iface_num: int,
/// data_iface_num: int,
/// ep_in: int,
/// ep_out: int,
/// ep_cmd: int) -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_VCP_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_data_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_cmd, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t iface_num = vals[0].u_int;
const mp_int_t data_iface_num = vals[1].u_int;
const mp_int_t ep_in = vals[2].u_int;
const mp_int_t ep_out = vals[3].u_int;
const mp_int_t ep_cmd = vals[4].u_int;
CHECK_PARAM_RANGE(iface_num, 0, 32)
CHECK_PARAM_RANGE(data_iface_num, 0, 32)
CHECK_PARAM_RANGE(ep_in, 0, 255)
CHECK_PARAM_RANGE(ep_out, 0, 255)
CHECK_PARAM_RANGE(ep_cmd, 0, 255)
const size_t vcp_buffer_len = 1024;
const size_t vcp_packet_len = 64;
mp_obj_VCP_t *o = m_new_obj(mp_obj_VCP_t);
o->base.type = type;
o->info.tx_packet = m_new(uint8_t, vcp_packet_len);
o->info.tx_buffer = m_new(uint8_t, vcp_buffer_len);
o->info.rx_packet = m_new(uint8_t, vcp_packet_len);
o->info.rx_buffer = m_new(uint8_t, vcp_buffer_len);
o->info.tx_buffer_len = vcp_buffer_len;
o->info.rx_buffer_len = vcp_buffer_len;
o->info.rx_intr_fn = pendsv_kbd_intr;
o->info.rx_intr_byte = 3; // Ctrl-C
o->info.iface_num = (uint8_t)(iface_num);
o->info.data_iface_num = (uint8_t)(data_iface_num);
o->info.ep_cmd = (uint8_t)(ep_cmd);
o->info.ep_in = (uint8_t)(ep_in);
o->info.ep_out = (uint8_t)(ep_out);
o->info.polling_interval = 10;
o->info.max_packet_len = (uint8_t)(vcp_packet_len);
return MP_OBJ_FROM_PTR(o);
}
/// def iface_num(self) -> int:
/// '''
/// Returns the configured number of this interface.
/// '''
STATIC mp_obj_t mod_trezorio_VCP_iface_num(mp_obj_t self) {
mp_obj_VCP_t *o = MP_OBJ_TO_PTR(self);
return MP_OBJ_NEW_SMALL_INT(o->info.iface_num);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_VCP_iface_num_obj, mod_trezorio_VCP_iface_num);
STATIC const mp_rom_map_elem_t mod_trezorio_VCP_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_iface_num), MP_ROM_PTR(&mod_trezorio_VCP_iface_num_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_VCP_locals_dict, mod_trezorio_VCP_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_VCP_type = {
{ &mp_type_type },
.name = MP_QSTR_VCP,
.make_new = mod_trezorio_VCP_make_new,
.locals_dict = (void*)&mod_trezorio_VCP_locals_dict,
};

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/// class WebUSB:
/// '''
/// USB WebUSB interface configuration.
/// '''
typedef struct _mp_obj_WebUSB_t {
mp_obj_base_t base;
usb_webusb_info_t info;
} mp_obj_WebUSB_t;
/// def __init__(self,
/// iface_num: int,
/// ep_in: int,
/// ep_out: int,
/// subclass: int = 0,
/// protocol: int = 0,
/// polling_interval: int = 1,
/// max_packet_len: int = 64) -> None:
/// '''
/// '''
STATIC mp_obj_t mod_trezorio_WebUSB_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_iface_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_in, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_ep_out, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_subclass, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_protocol, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_polling_interval, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
{ MP_QSTR_max_packet_len, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 64} },
};
mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
const mp_int_t iface_num = vals[0].u_int;
const mp_int_t ep_in = vals[1].u_int;
const mp_int_t ep_out = vals[2].u_int;
const mp_int_t subclass = vals[3].u_int;
const mp_int_t protocol = vals[4].u_int;
const mp_int_t polling_interval = vals[5].u_int;
const mp_int_t max_packet_len = vals[6].u_int;
CHECK_PARAM_RANGE(iface_num, 0, 32)
CHECK_PARAM_RANGE(ep_in, 0, 255)
CHECK_PARAM_RANGE(ep_out, 0, 255)
CHECK_PARAM_RANGE(subclass, 0, 255)
CHECK_PARAM_RANGE(protocol, 0, 255)
CHECK_PARAM_RANGE(polling_interval, 1, 255)
CHECK_PARAM_RANGE(max_packet_len, 64, 64)
mp_obj_WebUSB_t *o = m_new_obj(mp_obj_WebUSB_t);
o->base.type = type;
o->info.rx_buffer = m_new(uint8_t, max_packet_len);
o->info.iface_num = (uint8_t)(iface_num);
o->info.ep_in = (uint8_t)(ep_in);
o->info.ep_out = (uint8_t)(ep_out);
o->info.subclass = (uint8_t)(subclass);
o->info.protocol = (uint8_t)(protocol);
o->info.polling_interval = (uint8_t)(polling_interval);
o->info.max_packet_len = (uint8_t)(max_packet_len);
return MP_OBJ_FROM_PTR(o);
}
/// def iface_num(self) -> int:
/// '''
/// Returns the configured number of this interface.
/// '''
STATIC mp_obj_t mod_trezorio_WebUSB_iface_num(mp_obj_t self) {
mp_obj_WebUSB_t *o = MP_OBJ_TO_PTR(self);
return MP_OBJ_NEW_SMALL_INT(o->info.iface_num);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_WebUSB_iface_num_obj, mod_trezorio_WebUSB_iface_num);
/// def write(self, msg: bytes) -> int:
/// '''
/// Sends message using USB WebUSB (device) or UDP (emulator).
/// '''
STATIC mp_obj_t mod_trezorio_WebUSB_write(mp_obj_t self, mp_obj_t msg) {
mp_obj_WebUSB_t *o = MP_OBJ_TO_PTR(self);
mp_buffer_info_t buf;
mp_get_buffer_raise(msg, &buf, MP_BUFFER_READ);
ssize_t r = usb_webusb_write(o->info.iface_num, buf.buf, buf.len);
return MP_OBJ_NEW_SMALL_INT(r);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_WebUSB_write_obj, mod_trezorio_WebUSB_write);
STATIC const mp_rom_map_elem_t mod_trezorio_WebUSB_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_iface_num), MP_ROM_PTR(&mod_trezorio_WebUSB_iface_num_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mod_trezorio_WebUSB_write_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mod_trezorio_WebUSB_locals_dict, mod_trezorio_WebUSB_locals_dict_table);
STATIC const mp_obj_type_t mod_trezorio_WebUSB_type = {
{ &mp_type_type },
.name = MP_QSTR_WebUSB,
.make_new = mod_trezorio_WebUSB_make_new,
.locals_dict = (void*)&mod_trezorio_WebUSB_locals_dict,
};

15
embed/extmod/modtrezorio/modtrezorio.c
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@ -11,10 +11,16 @@
#if MICROPY_PY_TREZORIO
#include "touch.h"
#include "modtrezorio-flash.h"
#include "modtrezorio-sbu.h"
#include "modtrezorio-sdcard.h"
#include "modtrezorio-msg.h"
#include "modtrezorio-poll.h"
#include "modtrezorio-hid.h"
#include "modtrezorio-vcp.h"
#include "modtrezorio-webusb.h"
#include "modtrezorio-usb.h"
STATIC const mp_rom_map_elem_t mp_module_trezorio_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_trezorio) },
@ -28,13 +34,16 @@ STATIC const mp_rom_map_elem_t mp_module_trezorio_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_USB), MP_ROM_PTR(&mod_trezorio_USB_type) },
{ MP_ROM_QSTR(MP_QSTR_HID), MP_ROM_PTR(&mod_trezorio_HID_type) },
{ MP_ROM_QSTR(MP_QSTR_VCP), MP_ROM_PTR(&mod_trezorio_VCP_type) },
{ MP_ROM_QSTR(MP_QSTR_WebUSB), MP_ROM_PTR(&mod_trezorio_WebUSB_type) },
{ MP_ROM_QSTR(MP_QSTR_poll), MP_ROM_PTR(&mod_trezorio_poll_obj) },
{ MP_ROM_QSTR(MP_QSTR_POLL_READ), MP_OBJ_NEW_SMALL_INT(POLL_READ) },
{ MP_ROM_QSTR(MP_QSTR_POLL_WRITE), MP_OBJ_NEW_SMALL_INT(POLL_WRITE) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH), MP_OBJ_NEW_SMALL_INT(TOUCH_IFACE) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH_START), MP_OBJ_NEW_SMALL_INT((TOUCH_START >> 24) & 0xFFU) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH_MOVE), MP_OBJ_NEW_SMALL_INT((TOUCH_MOVE >> 24) & 0xFFU) },
{ MP_ROM_QSTR(MP_QSTR_TOUCH_END), MP_OBJ_NEW_SMALL_INT((TOUCH_END >> 24) & 0xFFU) },
{ MP_ROM_QSTR(MP_QSTR_POLL_READ), MP_OBJ_NEW_SMALL_INT(POLL_READ) },
{ MP_ROM_QSTR(MP_QSTR_POLL_WRITE), MP_OBJ_NEW_SMALL_INT(POLL_WRITE) },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_trezorio_globals, mp_module_trezorio_globals_table);

41
embed/trezorhal/usb.c
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@ -53,7 +53,7 @@ void usb_init(const usb_dev_info_t *dev_info) {
// Device descriptor
usb_dev_desc.bLength = sizeof(usb_device_descriptor_t);
usb_dev_desc.bDescriptorType = USB_DESC_TYPE_DEVICE;
usb_dev_desc.bcdUSB = 0x0200; // USB 2.0
usb_dev_desc.bcdUSB = 0x0210; // USB 2.1
usb_dev_desc.bDeviceClass = 0xEF; // Composite Device Class
usb_dev_desc.bDeviceSubClass = 0x02; // Common Class
usb_dev_desc.bDeviceProtocol = 0x01; // Interface Association Descriptor
@ -157,6 +157,7 @@ static uint8_t usb_ep_clear_nak(USBD_HandleTypeDef *dev, uint8_t ep_num) {
#include "usb_hid-impl.h"
#include "usb_vcp-impl.h"
#include "usb_webusb-impl.h"
/*
* USB configuration (device & string descriptors)
@ -202,6 +203,29 @@ static uint8_t *usb_get_interface_str_descriptor(USBD_SpeedTypeDef speed, uint16
return usb_str_buf;
}
static uint8_t *usb_get_bos_descriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
static const uint8_t bos[] = {
// usb_bos_descriptor {
0x05, // uint8_t bLength
USB_DESC_TYPE_BOS, // uint8_t bDescriptorType
0x1d, 0x0, // uint16_t wTotalLength
0x01, // uint8_t bNumDeviceCaps
// }
// usb_device_capability_descriptor {
0x18, // uint8_t bLength
USB_DESC_TYPE_DEVICE_CAPABILITY, // uint8_t bDescriptorType
USB_DEVICE_CAPABILITY_PLATFORM, // uint8_t bDevCapabilityType
0x00, // uint8_t bReserved
0x38, 0xb6, 0x08, 0x34, 0xa9, 0x09, 0xa0, 0x47, 0x8b, 0xfd, 0xa0, 0x76, 0x88, 0x15, 0xb6, 0x65, // uint128_t platformCompatibilityUUID
0x00, 0x01, // uint16_t bcdVersion
USB_WEBUSB_VENDOR_CODE, // uint8_t bVendorCode
USB_WEBUSB_LANDING_PAGE, // uint8_t iLandingPage
// }
};
*length = sizeof(bos);
return UNCONST(bos);
}
static const USBD_DescriptorsTypeDef usb_descriptors = {
.GetDeviceDescriptor = usb_get_dev_descriptor,
.GetLangIDStrDescriptor = usb_get_langid_str_descriptor,
@ -210,6 +234,7 @@ static const USBD_DescriptorsTypeDef usb_descriptors = {
.GetSerialStrDescriptor = usb_get_serial_str_descriptor,
.GetConfigurationStrDescriptor = usb_get_configuration_str_descriptor,
.GetInterfaceStrDescriptor = usb_get_interface_str_descriptor,
.GetBOSDescriptor = usb_get_bos_descriptor,
};
/*
@ -225,6 +250,9 @@ static uint8_t usb_class_init(USBD_HandleTypeDef *dev, uint8_t cfg_idx) {
case USB_IFACE_TYPE_VCP:
usb_vcp_class_init(dev, &usb_ifaces[i].vcp, cfg_idx);
break;
case USB_IFACE_TYPE_WEBUSB:
usb_webusb_class_init(dev, &usb_ifaces[i].webusb, cfg_idx);
break;
default:
break;
}
@ -241,6 +269,9 @@ static uint8_t usb_class_deinit(USBD_HandleTypeDef *dev, uint8_t cfg_idx) {
case USB_IFACE_TYPE_VCP:
usb_vcp_class_deinit(dev, &usb_ifaces[i].vcp, cfg_idx);
break;
case USB_IFACE_TYPE_WEBUSB:
usb_webusb_class_deinit(dev, &usb_ifaces[i].webusb, cfg_idx);
break;
default:
break;
}
@ -261,6 +292,8 @@ static uint8_t usb_class_setup(USBD_HandleTypeDef *dev, USBD_SetupReqTypedef *re
return usb_hid_class_setup(dev, &usb_ifaces[req->wIndex].hid, req);
case USB_IFACE_TYPE_VCP:
return usb_vcp_class_setup(dev, &usb_ifaces[req->wIndex].vcp, req);
case USB_IFACE_TYPE_WEBUSB:
return usb_webusb_class_setup(dev, &usb_ifaces[req->wIndex].webusb, req);
default:
return USBD_FAIL;
}
@ -275,6 +308,9 @@ static uint8_t usb_class_data_in(USBD_HandleTypeDef *dev, uint8_t ep_num) {
case USB_IFACE_TYPE_VCP:
usb_vcp_class_data_in(dev, &usb_ifaces[i].vcp, ep_num);
break;
case USB_IFACE_TYPE_WEBUSB:
usb_webusb_class_data_in(dev, &usb_ifaces[i].webusb, ep_num);
break;
default:
break;
}
@ -291,6 +327,9 @@ static uint8_t usb_class_data_out(USBD_HandleTypeDef *dev, uint8_t ep_num) {
case USB_IFACE_TYPE_VCP:
usb_vcp_class_data_out(dev, &usb_ifaces[i].vcp, ep_num);
break;
case USB_IFACE_TYPE_WEBUSB:
usb_webusb_class_data_out(dev, &usb_ifaces[i].webusb, ep_num);
break;
default:
break;
}

3
embed/trezorhal/usb.h
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@ -108,15 +108,18 @@ typedef enum {
USB_IFACE_TYPE_DISABLED = 0,
USB_IFACE_TYPE_VCP = 1,
USB_IFACE_TYPE_HID = 2,
USB_IFACE_TYPE_WEBUSB = 3,
} usb_iface_type_t;
#include "usb_hid-defs.h"
#include "usb_vcp-defs.h"
#include "usb_webusb-defs.h"
typedef struct {
union {
usb_hid_state_t hid;
usb_vcp_state_t vcp;
usb_webusb_state_t webusb;
};
usb_iface_type_t type;
} usb_iface_t;

57
embed/trezorhal/usb_webusb-defs.h
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@ -0,0 +1,57 @@
/*
* Copyright (c) Jan Pochyla, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#define USB_WEBUSB_VENDOR_CODE 0x01 // arbitrary
#define USB_WEBUSB_LANDING_PAGE 0x01 // arbitrary
typedef struct __attribute__((packed)) {
usb_interface_descriptor_t iface;
usb_endpoint_descriptor_t ep_in;
usb_endpoint_descriptor_t ep_out;
} usb_webusb_descriptor_block_t;
/* usb_webusb_info_t contains all information for setting up a WebUSB interface. All
* passed pointers need to live at least until the interface is disabled
* (usb_stop is called). */
typedef struct {
uint8_t *rx_buffer; // With length of max_packet_len bytes
uint8_t iface_num; // Address of this WebUSB interface
uint8_t ep_in; // Address of IN endpoint (with the highest bit set)
uint8_t ep_out; // Address of OUT endpoint
uint8_t subclass; // usb_iface_subclass_t
uint8_t protocol; // usb_iface_protocol_t
uint8_t polling_interval; // In units of 1ms
uint8_t max_packet_len; // Length of the biggest report and of rx_buffer
} usb_webusb_info_t;
/* usb_webusb_state_t encapsulates all state used by enabled WebUSB interface. It
* needs to be completely initialized in usb_webusb_add and reset in
* usb_webusb_class_init. See usb_webusb_info_t for details of the configuration
* fields. */
typedef struct {
const usb_webusb_descriptor_block_t *desc_block;
uint8_t *rx_buffer;
uint8_t ep_in;
uint8_t ep_out;
uint8_t max_packet_len;
uint8_t protocol; // For SET_PROTOCOL/GET_PROTOCOL setup reqs
uint8_t idle_rate; // For SET_IDLE/GET_IDLE setup reqs
uint8_t alt_setting; // For SET_INTERFACE/GET_INTERFACE setup reqs
uint8_t last_read_len; // Length of data read into rx_buffer
uint8_t ep_in_is_idle; // Set to 1 after IN endpoint gets idle
} usb_webusb_state_t;
secbool __wur usb_webusb_add(const usb_webusb_info_t *webusb_info);
secbool __wur usb_webusb_can_read(uint8_t iface_num);
secbool __wur usb_webusb_can_write(uint8_t iface_num);
int __wur usb_webusb_read(uint8_t iface_num, uint8_t *buf, uint32_t len);
int __wur usb_webusb_write(uint8_t iface_num, const uint8_t *buf, uint32_t len);
int __wur usb_webusb_read_select(uint32_t timeout);
int __wur usb_webusb_read_blocking(uint8_t iface_num, uint8_t *buf, uint32_t len, int timeout);
int __wur usb_webusb_write_blocking(uint8_t iface_num, const uint8_t *buf, uint32_t len, int timeout);

311
embed/trezorhal/usb_webusb-impl.h
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@ -0,0 +1,311 @@
/*
* Copyright (c) Jan Pochyla, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#define USB_CLASS_WEBUSB 0xFF
#define USB_WEBUSB_REQ_SET_PROTOCOL 0x0B
#define USB_WEBUSB_REQ_GET_PROTOCOL 0x03
#define USB_WEBUSB_REQ_SET_IDLE 0x0A
#define USB_WEBUSB_REQ_GET_IDLE 0x02
#define USB_WEBUSB_REQ_GET_URL 0x02
#define USB_WEBUSB_DESCRIPTOR_TYPE_URL 0x03
#define USB_WEBUSB_URL_SCHEME_HTTP 0
#define USB_WEBUSB_URL_SCHEME_HTTPS 1
/* usb_webusb_add adds and configures new USB WebUSB interface according to
* configuration options passed in `info`. */
secbool usb_webusb_add(const usb_webusb_info_t *info) {
usb_iface_t *iface = usb_get_iface(info->iface_num);
if (iface == NULL) {
return secfalse; // Invalid interface number
}
if (iface->type != USB_IFACE_TYPE_DISABLED) {
return secfalse; // Interface is already enabled
}
usb_webusb_descriptor_block_t *d = usb_desc_alloc_iface(sizeof(usb_webusb_descriptor_block_t));
if (d == NULL) {
return secfalse; // Not enough space in the configuration descriptor
}
if ((info->ep_in & USB_EP_DIR_MSK) != USB_EP_DIR_IN) {
return secfalse; // IN EP is invalid
}
if ((info->ep_out & USB_EP_DIR_MSK) != USB_EP_DIR_OUT) {
return secfalse; // OUT EP is invalid
}
if (info->rx_buffer == NULL) {
return secfalse;
}
// Interface descriptor
d->iface.bLength = sizeof(usb_interface_descriptor_t);
d->iface.bDescriptorType = USB_DESC_TYPE_INTERFACE;
d->iface.bInterfaceNumber = info->iface_num;
d->iface.bAlternateSetting = 0;
d->iface.bNumEndpoints = 2;
d->iface.bInterfaceClass = USB_CLASS_WEBUSB;
d->iface.bInterfaceSubClass = info->subclass;
d->iface.bInterfaceProtocol = info->protocol;
d->iface.iInterface = USBD_IDX_INTERFACE_STR;
// IN endpoint (sending)
d->ep_in.bLength = sizeof(usb_endpoint_descriptor_t);
d->ep_in.bDescriptorType = USB_DESC_TYPE_ENDPOINT;
d->ep_in.bEndpointAddress = info->ep_in;
d->ep_in.bmAttributes = USBD_EP_TYPE_INTR;
d->ep_in.wMaxPacketSize = info->max_packet_len;
d->ep_in.bInterval = info->polling_interval;
// OUT endpoint (receiving)
d->ep_out.bLength = sizeof(usb_endpoint_descriptor_t);
d->ep_out.bDescriptorType = USB_DESC_TYPE_ENDPOINT;
d->ep_out.bEndpointAddress = info->ep_out;
d->ep_out.bmAttributes = USBD_EP_TYPE_INTR;
d->ep_out.wMaxPacketSize = info->max_packet_len;
d->ep_out.bInterval = info->polling_interval;
// Config descriptor
usb_desc_add_iface(sizeof(usb_webusb_descriptor_block_t));
// Interface state
iface->type = USB_IFACE_TYPE_WEBUSB;
iface->webusb.desc_block = d;
iface->webusb.rx_buffer = info->rx_buffer;
iface->webusb.ep_in = info->ep_in;
iface->webusb.ep_out = info->ep_out;
iface->webusb.max_packet_len = info->max_packet_len;
iface->webusb.protocol = 0;
iface->webusb.idle_rate = 0;
iface->webusb.alt_setting = 0;
iface->webusb.last_read_len = 0;
iface->webusb.ep_in_is_idle = 1;
return sectrue;
}
secbool usb_webusb_can_read(uint8_t iface_num) {
usb_iface_t *iface = usb_get_iface(iface_num);
if (iface == NULL) {
return secfalse; // Invalid interface number
}
if (iface->type != USB_IFACE_TYPE_WEBUSB) {
return secfalse; // Invalid interface type
}
if (iface->webusb.last_read_len == 0) {
return secfalse; // Nothing in the receiving buffer
}
if (usb_dev_handle.dev_state != USBD_STATE_CONFIGURED) {
return secfalse; // Device is not configured
}
return sectrue;
}
secbool usb_webusb_can_write(uint8_t iface_num) {
usb_iface_t *iface = usb_get_iface(iface_num);
if (iface == NULL) {
return secfalse; // Invalid interface number
}
if (iface->type != USB_IFACE_TYPE_WEBUSB) {
return secfalse; // Invalid interface type
}
if (iface->webusb.ep_in_is_idle == 0) {
return secfalse; // Last transmission is not over yet
}
if (usb_dev_handle.dev_state != USBD_STATE_CONFIGURED) {
return secfalse; // Device is not configured
}
return sectrue;
}
int usb_webusb_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
usb_iface_t *iface = usb_get_iface(iface_num);
if (iface == NULL) {
return -1; // Invalid interface number
}
if (iface->type != USB_IFACE_TYPE_WEBUSB) {
return -2; // Invalid interface type
}
usb_webusb_state_t *state = &iface->webusb;
// Copy maximum possible amount of data and truncate the buffer length
if (len < state->last_read_len) {
return 0; // Not enough data in the read buffer
}
len = state->last_read_len;
state->last_read_len = 0;
memcpy(buf, state->rx_buffer, len);
// Clear NAK to indicate we are ready to read more data
usb_ep_clear_nak(&usb_dev_handle, state->ep_out);
return len;
}
int usb_webusb_write(uint8_t iface_num, const uint8_t *buf, uint32_t len) {
usb_iface_t *iface = usb_get_iface(iface_num);
if (iface == NULL) {
return -1; // Invalid interface number
}
if (iface->type != USB_IFACE_TYPE_WEBUSB) {
return -2; // Invalid interface type
}
usb_webusb_state_t *state = &iface->webusb;
state->ep_in_is_idle = 0;
USBD_LL_Transmit(&usb_dev_handle, state->ep_in, UNCONST(buf), (uint16_t)len);
return len;
}
int usb_webusb_read_select(uint32_t timeout) {
const uint32_t start = HAL_GetTick();
for (;;) {
for (int i = 0; i < USBD_MAX_NUM_INTERFACES; i++) {
if (sectrue == usb_webusb_can_read(i)) {
return i;
}
}
if (HAL_GetTick() - start >= timeout) {
break;
}
__WFI(); // Enter sleep mode, waiting for interrupt
}
return -1; // Timeout
}
int usb_webusb_read_blocking(uint8_t iface_num, uint8_t *buf, uint32_t len, int timeout) {
const uint32_t start = HAL_GetTick();
while (sectrue != usb_webusb_can_read(iface_num)) {
if (timeout >= 0 && HAL_GetTick() - start >= timeout) {
return 0; // Timeout
}
__WFI(); // Enter sleep mode, waiting for interrupt
}
return usb_webusb_read(iface_num, buf, len);
}
int usb_webusb_write_blocking(uint8_t iface_num, const uint8_t *buf, uint32_t len, int timeout) {
const uint32_t start = HAL_GetTick();
while (sectrue != usb_webusb_can_write(iface_num)) {
if (timeout >= 0 && HAL_GetTick() - start >= timeout) {
return 0; // Timeout
}
__WFI(); // Enter sleep mode, waiting for interrupt
}
return usb_webusb_write(iface_num, buf, len);
}
static void usb_webusb_class_init(USBD_HandleTypeDef *dev, usb_webusb_state_t *state, uint8_t cfg_idx) {
// Open endpoints
USBD_LL_OpenEP(dev, state->ep_in, USBD_EP_TYPE_INTR, state->max_packet_len);
USBD_LL_OpenEP(dev, state->ep_out, USBD_EP_TYPE_INTR, state->max_packet_len);
// Reset the state
state->protocol = 0;
state->idle_rate = 0;
state->alt_setting = 0;
state->last_read_len = 0;
state->ep_in_is_idle = 1;
// Prepare the OUT EP to receive next packet
USBD_LL_PrepareReceive(dev, state->ep_out, state->rx_buffer, state->max_packet_len);
}
static void usb_webusb_class_deinit(USBD_HandleTypeDef *dev, usb_webusb_state_t *state, uint8_t cfg_idx) {
// Flush endpoints
USBD_LL_FlushEP(dev, state->ep_in);
USBD_LL_FlushEP(dev, state->ep_out);
// Close endpoints
USBD_LL_CloseEP(dev, state->ep_in);
USBD_LL_CloseEP(dev, state->ep_out);
}
static int usb_webusb_class_setup(USBD_HandleTypeDef *dev, usb_webusb_state_t *state, USBD_SetupReqTypedef *req) {
static const char url[] = {
3 + 15, // uint8_t bLength
USB_WEBUSB_DESCRIPTOR_TYPE_URL, // uint8_t bDescriptorType
USB_WEBUSB_URL_SCHEME_HTTPS, // uint8_t bScheme
't', 'r', 'e', 'z', 'o', 'r', '.', 'i', 'o', '/', 's', 't', 'a', 'r', 't', // char URL[]
};
switch (req->bmRequest & USB_REQ_TYPE_MASK) {
case USB_REQ_TYPE_CLASS: // Class request
switch (req->bRequest) {
case USB_WEBUSB_REQ_SET_PROTOCOL:
state->protocol = req->wValue;
break;
case USB_WEBUSB_REQ_GET_PROTOCOL:
USBD_CtlSendData(dev, &state->protocol, sizeof(state->protocol));
break;
case USB_WEBUSB_REQ_SET_IDLE:
state->idle_rate = req->wValue >> 8;
break;
case USB_WEBUSB_REQ_GET_IDLE:
USBD_CtlSendData(dev, &state->idle_rate, sizeof(state->idle_rate));
break;
case USB_WEBUSB_VENDOR_CODE:
switch (req->wIndex) {
case USB_WEBUSB_REQ_GET_URL:
// we should check whether req->wValue == USB_WEBUSB_LANDING_PAGE,
// but let's return always the same url for all indexes
USBD_CtlSendData(dev, (uint8_t *)url, sizeof(url));
break;
default:
USBD_CtlError(dev, req);
return USBD_FAIL;
}
break;
default:
USBD_CtlError(dev, req);
return USBD_FAIL;
}
break;
case USB_REQ_TYPE_STANDARD: // Interface & Endpoint request
switch (req->bRequest) {
case USB_REQ_SET_INTERFACE:
state->alt_setting = req->wValue;
break;
case USB_REQ_GET_INTERFACE:
USBD_CtlSendData(dev, &state->alt_setting, sizeof(state->alt_setting));
break;
}
break;
}
return USBD_OK;
}
static void usb_webusb_class_data_in(USBD_HandleTypeDef *dev, usb_webusb_state_t *state, uint8_t ep_num) {
if ((ep_num | USB_EP_DIR_IN) == state->ep_in) {
state->ep_in_is_idle = 1;
}
}
static void usb_webusb_class_data_out(USBD_HandleTypeDef *dev, usb_webusb_state_t *state, uint8_t ep_num) {
if (ep_num == state->ep_out) {
state->last_read_len = USBD_LL_GetRxDataSize(dev, ep_num);
// Prepare the OUT EP to receive next packet
// User should provide state->rx_buffer that is big enough for state->max_packet_len bytes
USBD_LL_PrepareReceive(dev, ep_num, state->rx_buffer, state->max_packet_len);
if (state->last_read_len > 0) {
// Block the OUT EP until we process received data
usb_ep_set_nak(dev, ep_num);
}
}
}

1
embed/trezorhal/usbd_conf.h
Unescape View File

@ -68,6 +68,7 @@
#define USBD_SUPPORT_USER_STRING 0
#define USBD_SELF_POWERED 0
#define USBD_DEBUG_LEVEL 0
#define USBD_LPM_ENABLED 1
/* Exported macro ------------------------------------------------------------*/
/* Memory management macros */

7
embed/trezorhal/usbd_def.h
Unescape View File

@ -99,7 +99,10 @@
#define USB_DESC_TYPE_ENDPOINT 5
#define USB_DESC_TYPE_DEVICE_QUALIFIER 6
#define USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION 7
#define USB_DESC_TYPE_BOS 0x0F
#define USB_DESC_TYPE_BOS 15
#define USB_DESC_TYPE_DEVICE_CAPABILITY 16
#define USB_DEVICE_CAPABILITY_PLATFORM 5
#define USB_CONFIG_REMOTE_WAKEUP 2
#define USB_CONFIG_SELF_POWERED 1
@ -108,8 +111,6 @@
#define USB_FEATURE_REMOTE_WAKEUP 1
#define USB_FEATURE_TEST_MODE 2
#define USB_DEVICE_CAPABILITY_TYPE 0x10
#define USB_HS_MAX_PACKET_SIZE 512
#define USB_FS_MAX_PACKET_SIZE 64
#define USB_MAX_EP0_SIZE 64

135
embed/unix/usb.c
Unescape View File

@ -20,48 +20,68 @@ void __attribute__((noreturn)) __fatal_error(const char *expr, const char *msg,
#define ensure(expr, msg) (((expr) == sectrue) ? (void)0 : __fatal_error(#expr, msg, __FILE__, __LINE__, __func__))
#define TREZOR_UDP_IFACE 0
#define TREZOR_UDP_PORT 21324
// emulator opens UDP server on TREZOR_UDP_PORT port
// and emulates HID/WebUSB interface TREZOR_UDP_IFACE
// gracefully ignores all other USB interfaces
static int sock;
#define TREZOR_UDP_IFACE 0
#define TREZOR_UDP_PORT 21324
static usb_iface_type_t emulator_usb_iface_type = USB_IFACE_TYPE_DISABLED;
static int sock = -1;
static struct sockaddr_in si_me, si_other;
static socklen_t slen = 0;
void usb_init(const usb_dev_info_t *dev_info) {
(void)dev_info;
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
ensure(sectrue * (sock >= 0), NULL);
fcntl(sock, F_SETFL, O_NONBLOCK);
si_me.sin_family = AF_INET;
const char *ip = getenv("TREZOR_UDP_IP");
if (ip) {
si_me.sin_addr.s_addr = inet_addr(ip);
} else {
si_me.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
}
const char *port = getenv("TREZOR_UDP_PORT");
if (port) {
si_me.sin_port = htons(atoi(port));
} else {
si_me.sin_port = htons(TREZOR_UDP_PORT);
}
ensure(sectrue * (0 == bind(sock, (struct sockaddr*)&si_me, sizeof(si_me))), NULL);
}
void usb_deinit(void) {
}
void usb_start(void) {
// start server only if interface 0 is either HID or WebUSB
if (emulator_usb_iface_type == USB_IFACE_TYPE_HID || emulator_usb_iface_type == USB_IFACE_TYPE_WEBUSB) {
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
ensure(sectrue * (sock >= 0), NULL);
fcntl(sock, F_SETFL, O_NONBLOCK);
si_me.sin_family = AF_INET;
const char *ip = getenv("TREZOR_UDP_IP");
if (ip) {
si_me.sin_addr.s_addr = inet_addr(ip);
} else {
si_me.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
}
const char *port = getenv("TREZOR_UDP_PORT");
if (port) {
si_me.sin_port = htons(atoi(port));
} else {
si_me.sin_port = htons(TREZOR_UDP_PORT);
}
ensure(sectrue * (0 == bind(sock, (struct sockaddr*)&si_me, sizeof(si_me))), NULL);
}
}
void usb_stop(void) {
}
secbool usb_hid_add(const usb_hid_info_t *info) {
// store iface type if it is the emulated iface
if (info->iface_num == TREZOR_UDP_IFACE) {
emulator_usb_iface_type = USB_IFACE_TYPE_HID;
}
return sectrue;
}
secbool usb_webusb_add(const usb_webusb_info_t *info) {
// store iface type if it is the emulated iface
if (info->iface_num == TREZOR_UDP_IFACE) {
emulator_usb_iface_type = USB_IFACE_TYPE_WEBUSB;
}
return sectrue;
}
@ -69,10 +89,7 @@ secbool usb_vcp_add(const usb_vcp_info_t *info) {
return sectrue;
}
secbool usb_hid_can_read(uint8_t iface_num) {
if (iface_num != TREZOR_UDP_IFACE) {
return secfalse;
}
static secbool usb_emulated_can_read(uint8_t iface_num) {
struct pollfd fds[] = {
{ sock, POLLIN, 0 },
};
@ -80,10 +97,21 @@ secbool usb_hid_can_read(uint8_t iface_num) {
return sectrue * (r > 0);
}
secbool usb_hid_can_write(uint8_t iface_num) {
if (iface_num != TREZOR_UDP_IFACE) {
secbool usb_hid_can_read(uint8_t iface_num) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_HID) {
return secfalse;
}
return usb_emulated_can_read(iface_num);
}
secbool usb_webusb_can_read(uint8_t iface_num) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_WEBUSB) {
return secfalse;
}
return usb_emulated_can_read(iface_num);
}
static secbool usb_emulated_can_write(uint8_t iface_num) {
struct pollfd fds[] = {
{ sock, POLLOUT, 0 },
};
@ -91,10 +119,21 @@ secbool usb_hid_can_write(uint8_t iface_num) {
return sectrue * (r > 0);
}
int usb_hid_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
if (iface_num != TREZOR_UDP_IFACE) {
return 0;
secbool usb_hid_can_write(uint8_t iface_num) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_HID) {
return secfalse;
}
return usb_emulated_can_write(iface_num);
}
secbool usb_webusb_can_write(uint8_t iface_num) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_WEBUSB) {
return secfalse;
}
return usb_emulated_can_write(iface_num);
}
static int usb_emulated_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
struct sockaddr_in si;
socklen_t sl = sizeof(si);
ssize_t r = recvfrom(sock, buf, len, MSG_DONTWAIT, (struct sockaddr *)&si, &sl);
@ -114,10 +153,22 @@ int usb_hid_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
return r;
}
int usb_hid_write(uint8_t iface_num, const uint8_t *buf, uint32_t len) {
if (iface_num != TREZOR_UDP_IFACE) {
int usb_hid_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_HID) {
return 0;
}
return usb_emulated_read(iface_num, buf, len);
}
int usb_webusb_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_WEBUSB) {
return 0;
}
return usb_emulated_read(iface_num, buf, len);
}
static int usb_emulated_write(uint8_t iface_num, const uint8_t *buf, uint32_t len)
{
ssize_t r = len;
if (slen > 0) {
r = sendto(sock, buf, len, MSG_DONTWAIT, (const struct sockaddr *)&si_other, slen);
@ -125,6 +176,20 @@ int usb_hid_write(uint8_t iface_num, const uint8_t *buf, uint32_t len) {
return r;
}
int usb_hid_write(uint8_t iface_num, const uint8_t *buf, uint32_t len) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_HID) {
return 0;
}
return usb_emulated_write(iface_num, buf, len);
}
int usb_webusb_write(uint8_t iface_num, const uint8_t *buf, uint32_t len) {
if (iface_num != TREZOR_UDP_IFACE || emulator_usb_iface_type != USB_IFACE_TYPE_WEBUSB) {
return 0;
}
return usb_emulated_write(iface_num, buf, len);
}
void pendsv_kbd_intr(void) {
}

1
embed/unix/usb_webusb-defs.h
Unescape View File

@ -0,0 +1 @@
../trezorhal/usb_webusb-defs.h

24
src/main.py
Unescape View File

@ -6,11 +6,19 @@ from trezor import loop
from trezor import wire
from trezor import workflow
USE_WEBUSB = False
log.level = log.DEBUG
# initialize the USB stack
if True:
if USE_WEBUSB:
usb_wire = io.WebUSB(
iface_num=0,
ep_in=0x81,
ep_out=0x01,
)
else:
usb_wire = io.HID(
iface_num=0,
ep_in=0x81,
@ -60,7 +68,13 @@ usb_u2f = io.HID(
)
if __debug__:
if True:
if USE_WEBUSB:
usb_debug = io.WebUSB(
iface_num=4,
ep_in=0x85,
ep_out=0x04,
)
else:
usb_debug = io.HID(
iface_num=4,
ep_in=0x85,
@ -84,6 +98,7 @@ if __debug__:
0xc0, # END_COLLECTION
]),
)
usb_vcp = io.VCP(
iface_num=1,
data_iface_num=2,
@ -95,10 +110,11 @@ if __debug__:
usb = io.USB(
vendor_id=0x1209,
product_id=0x53C1,
release_num=0x0002,
release_num=0x0200,
manufacturer="SatoshiLabs",
product="TREZOR",
serial_number="000000000000000000000000",
serial_number="44DD6B2C788D760538A78ECA",
interface="TREZOR Interface",
)
usb.add(usb_wire)

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