412 lines
16 KiB
C
412 lines
16 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Dan Halbert for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/gc.h"
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#include "py/obj.h"
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#include "py/mphal.h"
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#include "py/runtime.h"
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#include "py/objtuple.h"
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#include "shared-bindings/usb_cdc/__init__.h"
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#include "shared-bindings/usb_cdc/Serial.h"
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#include "supervisor/usb.h"
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#include "tusb.h"
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#if CIRCUITPY_USB_VENDOR
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#include "supervisor/port.h"
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#endif
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#if CFG_TUD_CDC != 2
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#error CFG_TUD_CDC must be exactly 2
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#endif
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static const uint8_t usb_cdc_descriptor_template[] = {
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// CDC IAD Descriptor
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0x08, // 0 bLength
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0x0B, // 1 bDescriptorType: IAD Descriptor
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0xFF, // 2 bFirstInterface [SET AT RUNTIME]
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#define CDC_FIRST_INTERFACE_INDEX 2
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0x02, // 3 bInterfaceCount: 2
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0x02, // 4 bFunctionClass: COMM
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0x02, // 5 bFunctionSubclass: ACM
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0x00, // 6 bFunctionProtocol: NONE
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0x00, // 7 iFunction
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// CDC Comm Interface Descriptor
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0x09, // 8 bLength
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0x04, // 9 bDescriptorType (Interface)
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0xFF, // 10 bInterfaceNumber [SET AT RUNTIME]
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#define CDC_COMM_INTERFACE_INDEX 10
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0x00, // 11 bAlternateSetting
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0x01, // 12 bNumEndpoints 1
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0x02, // 13 bInterfaceClass: COMM
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0x02, // 14 bInterfaceSubClass: ACM
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0x00, // 15 bInterfaceProtocol: NONE
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0xFF, // 16 iInterface (String Index)
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#define CDC_COMM_INTERFACE_STRING_INDEX 16
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// CDC Header Descriptor
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0x05, // 17 bLength
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0x24, // 18 bDescriptorType: CLASS SPECIFIC INTERFACE
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0x00, // 19 bDescriptorSubtype: NONE
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0x10, 0x01, // 20,21 bcdCDC: 1.10
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// CDC Call Management Descriptor
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0x05, // 22 bLength
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0x24, // 23 bDescriptorType: CLASS SPECIFIC INTERFACE
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0x01, // 24 bDescriptorSubtype: CALL MANAGEMENT
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0x01, // 25 bmCapabilities
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0xFF, // 26 bDataInterface [SET AT RUNTIME]
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#define CDC_CALL_MANAGEMENT_DATA_INTERFACE_INDEX 26
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// CDC Abstract Control Management Descriptor
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0x04, // 27 bLength
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0x24, // 28 bDescriptorType: CLASS SPECIFIC INTERFACE
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0x02, // 29 bDescriptorSubtype: ABSTRACT CONTROL MANAGEMENT
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0x02, // 30 bmCapabilities
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// CDC Union Descriptor
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0x05, // 31 bLength
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0x24, // 32 bDescriptorType: CLASS SPECIFIC INTERFACE
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0x06, // 33 bDescriptorSubtype: CDC
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0xFF, // 34 bMasterInterface [SET AT RUNTIME]
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#define CDC_UNION_MASTER_INTERFACE_INDEX 34
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0xFF, // 35 bSlaveInterface_list (1 item)
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#define CDC_UNION_SLAVE_INTERFACE_INDEX 35
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// CDC Control IN Endpoint Descriptor
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0x07, // 36 bLength
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0x05, // 37 bDescriptorType (Endpoint)
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0xFF, // 38 bEndpointAddress (IN/D2H) [SET AT RUNTIME: 0x80 | number]
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#define CDC_CONTROL_IN_ENDPOINT_INDEX 38
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0x03, // 39 bmAttributes (Interrupt)
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0x40, 0x00, // 40, 41 wMaxPacketSize 64
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0x10, // 42 bInterval 16 (unit depends on device speed)
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// CDC Data Interface
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0x09, // 43 bLength
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0x04, // 44 bDescriptorType (Interface)
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0xFF, // 45 bInterfaceNumber [SET AT RUNTIME]
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#define CDC_DATA_INTERFACE_INDEX 45
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0x00, // 46 bAlternateSetting
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0x02, // 47 bNumEndpoints 2
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0x0A, // 48 bInterfaceClass: DATA
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0x00, // 49 bInterfaceSubClass: NONE
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0x00, // 50 bInterfaceProtocol
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0x05, // 51 iInterface (String Index)
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#define CDC_DATA_INTERFACE_STRING_INDEX 51
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// CDC Data OUT Endpoint Descriptor
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0x07, // 52 bLength
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0x05, // 53 bDescriptorType (Endpoint)
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0xFF, // 54 bEndpointAddress (OUT/H2D) [SET AT RUNTIME]
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#define CDC_DATA_OUT_ENDPOINT_INDEX 54
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0x02, // 55 bmAttributes (Bulk)
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#if USB_HIGHSPEED
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0x00, 0x02, // 56,57 wMaxPacketSize 512
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#else
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0x40, 0x00, // 56,57 wMaxPacketSize 64
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#endif
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0x00, // 58 bInterval 0 (unit depends on device speed)
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// CDC Data IN Endpoint Descriptor
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0x07, // 59 bLength
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0x05, // 60 bDescriptorType (Endpoint)
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0xFF, // 61 bEndpointAddress (IN/D2H) [SET AT RUNTIME: 0x80 | number]
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#define CDC_DATA_IN_ENDPOINT_INDEX 61
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0x02, // 62 bmAttributes (Bulk)
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#if USB_HIGHSPEED
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0x00, 0x02, // 63,64 wMaxPacketSize 512
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#else
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0x40, 0x00, // 63,64 wMaxPacketSize 64
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#endif
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0x00, // 65 bInterval 0 (unit depends on device speed)
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};
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static const char console_cdc_comm_interface_name[] = USB_INTERFACE_NAME " CDC control";
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static const char data_cdc_comm_interface_name[] = USB_INTERFACE_NAME " CDC2 control";
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static const char console_cdc_data_interface_name[] = USB_INTERFACE_NAME " CDC data";
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static const char data_cdc_data_interface_name[] = USB_INTERFACE_NAME " CDC2 data";
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// .idx is set later.
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static usb_cdc_serial_obj_t usb_cdc_console_obj = {
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.base.type = &usb_cdc_serial_type,
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.timeout = -1.0f,
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.write_timeout = -1.0f,
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};
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static usb_cdc_serial_obj_t usb_cdc_data_obj = {
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.base.type = &usb_cdc_serial_type,
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.timeout = -1.0f,
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.write_timeout = -1.0f,
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};
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static bool usb_cdc_console_is_enabled;
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static bool usb_cdc_data_is_enabled;
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void usb_cdc_set_defaults(void) {
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common_hal_usb_cdc_enable(CIRCUITPY_USB_CDC_CONSOLE_ENABLED_DEFAULT,
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CIRCUITPY_USB_CDC_DATA_ENABLED_DEFAULT);
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}
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bool usb_cdc_console_enabled(void) {
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return usb_cdc_console_is_enabled;
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}
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bool usb_cdc_data_enabled(void) {
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return usb_cdc_data_is_enabled;
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}
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size_t usb_cdc_descriptor_length(void) {
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return sizeof(usb_cdc_descriptor_template);
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}
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size_t usb_cdc_add_descriptor(uint8_t *descriptor_buf, descriptor_counts_t *descriptor_counts, uint8_t *current_interface_string, bool console) {
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memcpy(descriptor_buf, usb_cdc_descriptor_template, sizeof(usb_cdc_descriptor_template));
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// Store comm interface number.
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descriptor_buf[CDC_FIRST_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_buf[CDC_COMM_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_buf[CDC_UNION_MASTER_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_counts->current_interface++;
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// Now store data interface number.
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descriptor_buf[CDC_CALL_MANAGEMENT_DATA_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_buf[CDC_UNION_SLAVE_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_buf[CDC_DATA_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_counts->current_interface++;
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descriptor_buf[CDC_CONTROL_IN_ENDPOINT_INDEX] = 0x80 | (
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console
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? (USB_CDC_EP_NUM_NOTIFICATION ? USB_CDC_EP_NUM_NOTIFICATION : descriptor_counts->current_endpoint)
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: (USB_CDC2_EP_NUM_NOTIFICATION ? USB_CDC2_EP_NUM_NOTIFICATION : descriptor_counts->current_endpoint));
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descriptor_counts->num_in_endpoints++;
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descriptor_counts->current_endpoint++;
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descriptor_buf[CDC_DATA_IN_ENDPOINT_INDEX] = 0x80 | (
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console
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? (USB_CDC_EP_NUM_DATA_IN ? USB_CDC_EP_NUM_DATA_IN : descriptor_counts->current_endpoint)
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: (USB_CDC2_EP_NUM_DATA_IN ? USB_CDC2_EP_NUM_DATA_IN : descriptor_counts->current_endpoint));
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descriptor_counts->num_in_endpoints++;
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descriptor_buf[CDC_DATA_OUT_ENDPOINT_INDEX] =
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console
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? (USB_CDC_EP_NUM_DATA_OUT ? USB_CDC_EP_NUM_DATA_OUT : descriptor_counts->current_endpoint)
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: (USB_CDC2_EP_NUM_DATA_OUT ? USB_CDC2_EP_NUM_DATA_OUT : descriptor_counts->current_endpoint);
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descriptor_counts->num_out_endpoints++;
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descriptor_counts->current_endpoint++;
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usb_add_interface_string(*current_interface_string,
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console ? console_cdc_comm_interface_name : data_cdc_comm_interface_name);
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descriptor_buf[CDC_COMM_INTERFACE_STRING_INDEX] = *current_interface_string;
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(*current_interface_string)++;
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usb_add_interface_string(*current_interface_string,
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console ? console_cdc_data_interface_name : data_cdc_data_interface_name);
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descriptor_buf[CDC_DATA_INTERFACE_STRING_INDEX] = *current_interface_string;
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(*current_interface_string)++;
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return sizeof(usb_cdc_descriptor_template);
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}
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bool common_hal_usb_cdc_disable(void) {
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return common_hal_usb_cdc_enable(false, false);
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}
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bool common_hal_usb_cdc_enable(bool console, bool data) {
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// We can't change the descriptors once we're connected.
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if (tud_connected()) {
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return false;
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}
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// Right now these objects contain no heap objects, but if that changes,
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// they will need to be protected against gc.
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// Assign only as many idx values as necessary. They must start at 0.
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uint8_t idx = 0;
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usb_cdc_console_is_enabled = console;
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usb_cdc_set_console(console ? MP_OBJ_FROM_PTR(&usb_cdc_console_obj) : mp_const_none);
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if (console) {
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usb_cdc_console_obj.idx = idx;
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idx++;
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}
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usb_cdc_data_is_enabled = data;
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usb_cdc_set_data(data ? MP_OBJ_FROM_PTR(&usb_cdc_data_obj) : mp_const_none);
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if (data) {
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usb_cdc_data_obj.idx = idx;
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}
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return true;
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}
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#if CIRCUITPY_USB_VENDOR
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#include "usb_vendor_descriptors.h"
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#define BOS_TOTAL_LEN (TUD_BOS_DESC_LEN + TUD_BOS_WEBUSB_DESC_LEN + TUD_BOS_MICROSOFT_OS_DESC_LEN)
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#define MS_OS_20_DESC_LEN 0xB2
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// BOS Descriptor is required for webUSB
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uint8_t const desc_bos[] =
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{
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// total length, number of device caps
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TUD_BOS_DESCRIPTOR(BOS_TOTAL_LEN, 2),
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// Vendor Code, iLandingPage
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TUD_BOS_WEBUSB_DESCRIPTOR(VENDOR_REQUEST_WEBUSB, 1),
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// Microsoft OS 2.0 descriptor
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TUD_BOS_MS_OS_20_DESCRIPTOR(MS_OS_20_DESC_LEN, VENDOR_REQUEST_MICROSOFT)
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};
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uint8_t const *tud_descriptor_bos_cb(void) {
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return desc_bos;
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}
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#define MS_OS_20_ITF_NUM_MAGIC 0x5b
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#define MS_OS_20_ITF_NUM_OFFSET 22
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const uint8_t ms_os_20_descriptor_template[] =
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{
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// 10 Set header: length, type, windows version, total length
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U16_TO_U8S_LE(0x000A), U16_TO_U8S_LE(MS_OS_20_SET_HEADER_DESCRIPTOR), U32_TO_U8S_LE(0x06030000), U16_TO_U8S_LE(MS_OS_20_DESC_LEN),
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// 8 Configuration subset header: length, type, configuration index, reserved, configuration total length
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U16_TO_U8S_LE(0x0008), U16_TO_U8S_LE(MS_OS_20_SUBSET_HEADER_CONFIGURATION), 0, 0, U16_TO_U8S_LE(MS_OS_20_DESC_LEN - 0x0A),
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// 8 Function Subset header: length, type, first interface, reserved, subset length
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U16_TO_U8S_LE(0x0008), U16_TO_U8S_LE(MS_OS_20_SUBSET_HEADER_FUNCTION), /* 22 */ MS_OS_20_ITF_NUM_MAGIC, 0, U16_TO_U8S_LE(MS_OS_20_DESC_LEN - 0x0A - 0x08),
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// 20 MS OS 2.0 Compatible ID descriptor: length, type, compatible ID, sub compatible ID
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U16_TO_U8S_LE(0x0014), U16_TO_U8S_LE(MS_OS_20_FEATURE_COMPATBLE_ID), 'W', 'I', 'N', 'U', 'S', 'B', 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // sub-compatible
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// MS OS 2.0 Registry property descriptor: length, type
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U16_TO_U8S_LE(MS_OS_20_DESC_LEN - 0x0A - 0x08 - 0x08 - 0x14), U16_TO_U8S_LE(MS_OS_20_FEATURE_REG_PROPERTY),
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U16_TO_U8S_LE(0x0007), U16_TO_U8S_LE(0x002A), // wPropertyDataType, wPropertyNameLength and PropertyName "DeviceInterfaceGUIDs\0" in UTF-16
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'D', 0x00, 'e', 0x00, 'v', 0x00, 'i', 0x00, 'c', 0x00, 'e', 0x00, 'I', 0x00, 'n', 0x00, 't', 0x00, 'e', 0x00,
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'r', 0x00, 'f', 0x00, 'a', 0x00, 'c', 0x00, 'e', 0x00, 'G', 0x00, 'U', 0x00, 'I', 0x00, 'D', 0x00, 's', 0x00, 0x00, 0x00,
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U16_TO_U8S_LE(0x0050), // wPropertyDataLength
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// bPropertyData: “{975F44D9-0D08-43FD-8B3E-127CA8AFFF9D}”.
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'{', 0x00, '9', 0x00, '7', 0x00, '5', 0x00, 'F', 0x00, '4', 0x00, '4', 0x00, 'D', 0x00, '9', 0x00, '-', 0x00,
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'0', 0x00, 'D', 0x00, '0', 0x00, '8', 0x00, '-', 0x00, '4', 0x00, '3', 0x00, 'F', 0x00, 'D', 0x00, '-', 0x00,
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'8', 0x00, 'B', 0x00, '3', 0x00, 'E', 0x00, '-', 0x00, '1', 0x00, '2', 0x00, '7', 0x00, 'C', 0x00, 'A', 0x00,
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'8', 0x00, 'A', 0x00, 'F', 0x00, 'F', 0x00, 'F', 0x00, '9', 0x00, 'D', 0x00, '}', 0x00, 0x00, 0x00, 0x00, 0x00
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};
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TU_VERIFY_STATIC(sizeof(ms_os_20_descriptor_template) == MS_OS_20_DESC_LEN, "Incorrect size");
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static const uint8_t usb_vendor_descriptor_template[] = {
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// Vendor Descriptor
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0x09, // 0 bLength
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0x04, // 1 bDescriptorType (Interface)
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0xFF, // 2 bInterfaceNumber [SET AT RUNTIME]
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#define VENDOR_INTERFACE_INDEX 2
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0x00, // 3 bAlternateSetting
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0x02, // 4 bNumEndpoints 2
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0xFF, // 5 bInterfaceClass: Vendor Specific
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0x00, // 6 bInterfaceSubClass: NONE
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0x00, // 7 bInterfaceProtocol: NONE
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0xFF, // 8 iInterface (String Index)
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#define VENDOR_INTERFACE_STRING_INDEX 8
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// Vendor OUT Endpoint Descriptor
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0x07, // 9 bLength
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0x05, // 10 bDescriptorType (Endpoint)
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0xFF, // 11 bEndpointAddress (IN/D2H) [SET AT RUNTIME: number]
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#define VENDOR_OUT_ENDPOINT_INDEX 11
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0x02, // 12 bmAttributes (Bulk)
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#if USB_HIGHSPEED
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0x00, 0x02, // 13,14 wMaxPacketSize 512
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#else
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0x40, 0x00, // 13,14 wMaxPacketSize 64
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#endif
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0x0, // 15 bInterval 0
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// Vendor IN Endpoint Descriptor
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0x07, // 16 bLength
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0x05, // 17 bDescriptorType (Endpoint)
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0xFF, // 18 bEndpointAddress (IN/D2H) [SET AT RUNTIME: 0x80 | number]
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#define VENDOR_IN_ENDPOINT_INDEX 18
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0x02, // 19 bmAttributes (Bulk)
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0x40, 0x00, // 20, 21 wMaxPacketSize 64
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0x0 // 22 bInterval 0
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};
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static const char vendor_interface_name[] = USB_INTERFACE_NAME " WebUSB";
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bool usb_vendor_enabled(void) {
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return usb_cdc_console_enabled();
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}
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size_t usb_vendor_descriptor_length(void) {
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return sizeof(usb_vendor_descriptor_template);
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}
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static uint8_t *ms_os_20_descriptor = NULL;
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size_t vendor_ms_os_20_descriptor_length() {
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return ms_os_20_descriptor != NULL ? sizeof(ms_os_20_descriptor_template) : 0;
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}
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uint8_t const *vendor_ms_os_20_descriptor() {
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return ms_os_20_descriptor;
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}
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size_t usb_vendor_add_descriptor(uint8_t *descriptor_buf, descriptor_counts_t *descriptor_counts, uint8_t *current_interface_string) {
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if (ms_os_20_descriptor == NULL) {
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ms_os_20_descriptor = port_malloc(sizeof(ms_os_20_descriptor_template), false);
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if (ms_os_20_descriptor == NULL) {
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return 0;
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}
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memcpy(ms_os_20_descriptor, ms_os_20_descriptor_template, sizeof(ms_os_20_descriptor_template));
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ms_os_20_descriptor[MS_OS_20_ITF_NUM_OFFSET] = descriptor_counts->current_interface;
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ms_os_20_descriptor[VENDOR_IN_ENDPOINT_INDEX] = 0x80 | descriptor_counts->current_endpoint;
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ms_os_20_descriptor[VENDOR_OUT_ENDPOINT_INDEX] = descriptor_counts->current_endpoint;
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}
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memcpy(descriptor_buf, usb_vendor_descriptor_template, sizeof(usb_vendor_descriptor_template));
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descriptor_buf[VENDOR_INTERFACE_INDEX] = descriptor_counts->current_interface;
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descriptor_counts->current_interface++;
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descriptor_buf[VENDOR_IN_ENDPOINT_INDEX] = 0x80 | descriptor_counts->current_endpoint;
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descriptor_counts->num_in_endpoints++;
|
|
descriptor_buf[VENDOR_OUT_ENDPOINT_INDEX] = descriptor_counts->current_endpoint;
|
|
descriptor_counts->num_out_endpoints++;
|
|
descriptor_counts->current_endpoint++;
|
|
|
|
usb_add_interface_string(*current_interface_string, vendor_interface_name);
|
|
descriptor_buf[VENDOR_INTERFACE_STRING_INDEX] = *current_interface_string;
|
|
(*current_interface_string)++;
|
|
|
|
return sizeof(usb_vendor_descriptor_template);
|
|
}
|
|
|
|
#endif
|