mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-24 07:18:09 +00:00
233 lines
8.1 KiB
C
233 lines
8.1 KiB
C
void mp_hal_set_vcp_iface(int iface_num);
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enum {
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USB_CLOSED = 0,
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USB_OPENED = 1,
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};
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/// class USB:
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/// '''
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/// USB device configuration.
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/// '''
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typedef struct _mp_obj_USB_t {
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mp_obj_base_t base;
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mp_obj_list_t ifaces;
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usb_dev_info_t info;
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mp_int_t state;
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} mp_obj_USB_t;
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static const char *get_0str(mp_obj_t o, size_t min_len, size_t max_len) {
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size_t len;
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const char *s = mp_obj_str_get_data(o, &len);
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if ((len >= min_len) && (len <= max_len)) {
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if (len == 0 && s == NULL) {
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return "";
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} else {
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return s;
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}
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} else {
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return NULL;
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}
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}
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/// def __init__(self,
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/// vendor_id: int,
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/// product_id: int,
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/// release_num: int,
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/// manufacturer: str='',
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/// product: str='',
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/// serial_number: str='',
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/// configuration: str='',
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/// interface: str='') -> None:
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/// '''
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/// '''
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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) {
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STATIC const mp_arg_t allowed_args[] = {
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{ MP_QSTR_vendor_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_product_id, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_release_num, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
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{ MP_QSTR_manufacturer, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
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{ MP_QSTR_product, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
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{ MP_QSTR_serial_number, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
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{ MP_QSTR_configuration, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
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{ MP_QSTR_interface, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_empty_bytes} },
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};
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mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
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const mp_int_t vendor_id = vals[0].u_int;
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const mp_int_t product_id = vals[1].u_int;
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const mp_int_t release_num = vals[2].u_int;
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const char *manufacturer = get_0str(vals[3].u_obj, 0, 32);
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const char *product = get_0str(vals[4].u_obj, 0, 32);
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const char *serial_number = get_0str(vals[5].u_obj, 0, 32);
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const char *configuration = get_0str(vals[6].u_obj, 0, 32);
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const char *interface = get_0str(vals[7].u_obj, 0, 32);
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CHECK_PARAM_RANGE(vendor_id, 0, 65535)
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CHECK_PARAM_RANGE(product_id, 0, 65535)
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CHECK_PARAM_RANGE(release_num, 0, 65535)
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if (manufacturer == NULL) {
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mp_raise_ValueError("manufacturer is invalid");
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}
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if (product == NULL) {
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mp_raise_ValueError("product is invalid");
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}
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if (serial_number == NULL) {
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mp_raise_ValueError("serial_number is invalid");
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}
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if (configuration == NULL) {
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mp_raise_ValueError("configuration is invalid");
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}
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if (interface == NULL) {
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mp_raise_ValueError("interface is invalid");
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}
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mp_obj_USB_t *o = m_new_obj(mp_obj_USB_t);
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o->base.type = type;
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o->state = USB_CLOSED;
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o->info.vendor_id = (uint16_t)(vendor_id);
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o->info.product_id = (uint16_t)(product_id);
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o->info.release_num = (uint16_t)(release_num);
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o->info.manufacturer = (const uint8_t *)(manufacturer);
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o->info.product = (const uint8_t *)(product);
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o->info.serial_number = (const uint8_t *)(serial_number);
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o->info.configuration = (const uint8_t *)(configuration);
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o->info.interface = (const uint8_t *)(interface);
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mp_obj_list_init(&o->ifaces, 0);
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return MP_OBJ_FROM_PTR(o);
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}
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/// def add(self, iface: Union[HID, VCP, WebUSB]) -> None:
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/// '''
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/// Registers passed interface into the USB stack.
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/// '''
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STATIC mp_obj_t mod_trezorio_USB_add(mp_obj_t self, mp_obj_t iface) {
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mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
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if (o->state != USB_CLOSED) {
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mp_raise_msg(&mp_type_RuntimeError, "already initialized");
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}
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mp_obj_list_append(MP_OBJ_FROM_PTR(&o->ifaces), iface);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_trezorio_USB_add_obj, mod_trezorio_USB_add);
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/// def open(self) -> None:
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/// '''
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/// Initializes the USB stack.
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/// '''
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STATIC mp_obj_t mod_trezorio_USB_open(mp_obj_t self) {
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mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
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if (o->state != USB_CLOSED) {
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mp_raise_msg(&mp_type_RuntimeError, "already initialized");
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}
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size_t iface_cnt;
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mp_obj_t *iface_objs;
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mp_obj_get_array(MP_OBJ_FROM_PTR(&o->ifaces), &iface_cnt, &iface_objs);
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// Initialize the USB stack
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usb_init(&o->info);
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int vcp_iface_num = -1;
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// Add all interfaces
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for (size_t i = 0; i < iface_cnt; i++) {
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mp_obj_t iface = iface_objs[i];
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if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_HID_type)) {
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mp_obj_HID_t *hid = MP_OBJ_TO_PTR(iface);
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if (sectrue != usb_hid_add(&hid->info)) {
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usb_deinit();
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mp_raise_msg(&mp_type_RuntimeError, "failed to add HID interface");
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}
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} else if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_WebUSB_type)) {
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mp_obj_WebUSB_t *webusb = MP_OBJ_TO_PTR(iface);
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if (sectrue != usb_webusb_add(&webusb->info)) {
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usb_deinit();
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mp_raise_msg(&mp_type_RuntimeError, "failed to add WebUSB interface");
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}
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} else if (MP_OBJ_IS_TYPE(iface, &mod_trezorio_VCP_type)) {
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mp_obj_VCP_t *vcp = MP_OBJ_TO_PTR(iface);
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if (sectrue != usb_vcp_add(&vcp->info)) {
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usb_deinit();
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mp_raise_msg(&mp_type_RuntimeError, "failed to add VCP interface");
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}
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vcp_iface_num = vcp->info.iface_num;
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} else {
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usb_deinit();
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mp_raise_TypeError("expected HID, WebUSB or VCP type");
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}
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}
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// Start the USB stack
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usb_start();
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o->state = USB_OPENED;
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// If we found any VCP interfaces, use the last one for stdio,
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// otherwise disable the stdio support
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mp_hal_set_vcp_iface(vcp_iface_num);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB_open_obj, mod_trezorio_USB_open);
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/// def close(self) -> None:
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/// '''
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/// Cleans up the USB stack.
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/// '''
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STATIC mp_obj_t mod_trezorio_USB_close(mp_obj_t self) {
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mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
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if (o->state != USB_OPENED) {
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mp_raise_msg(&mp_type_RuntimeError, "not initialized");
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}
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usb_stop();
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usb_deinit();
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mp_obj_list_set_len(MP_OBJ_FROM_PTR(&o->ifaces), 0);
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mp_seq_clear(o->ifaces.items, 0, o->ifaces.alloc, sizeof(*o->ifaces.items));
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o->info.vendor_id = 0;
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o->info.product_id = 0;
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o->info.release_num = 0;
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o->info.manufacturer = NULL;
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o->info.product = NULL;
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o->info.serial_number = NULL;
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o->state = USB_CLOSED;
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB_close_obj, mod_trezorio_USB_close);
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STATIC mp_obj_t mod_trezorio_USB___del__(mp_obj_t self) {
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mp_obj_USB_t *o = MP_OBJ_TO_PTR(self);
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if (o->state != USB_CLOSED) {
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usb_stop();
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usb_deinit();
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o->state = USB_CLOSED;
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorio_USB___del___obj, mod_trezorio_USB___del__);
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STATIC const mp_rom_map_elem_t mod_trezorio_USB_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_add), MP_ROM_PTR(&mod_trezorio_USB_add_obj) },
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{ MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mod_trezorio_USB_open_obj) },
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{ MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&mod_trezorio_USB_close_obj) },
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{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mod_trezorio_USB___del___obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(mod_trezorio_USB_locals_dict, mod_trezorio_USB_locals_dict_table);
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STATIC const mp_obj_type_t mod_trezorio_USB_type = {
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{ &mp_type_type },
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.name = MP_QSTR_USB,
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.make_new = mod_trezorio_USB_make_new,
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.locals_dict = (void*)&mod_trezorio_USB_locals_dict,
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};
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