2021-08-24 11:20:50 -04:00
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/*
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* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdio.h>
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#include "unity.h"
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#include "test_utils.h"
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#include "usb/usb_host.h"
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/*
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Tests that check the configuration descriptor parsing functions provided in usb_host.h work by parsing a fixed
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configuration descriptor. The fixed configuration descriptor used in this test is provided below (both in textual and
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byte format), and is of a UVC device. Thus the configuration descriptor has a good set of scenarios that can be tested
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(such as multiple interfaces, alternate settings, class specific descriptors, default endpoint only interfaces etc).
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*/
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/*
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Configuration Descriptor:
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bLength 9
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bDescriptorType 2
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wTotalLength 0x0185
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bNumInterfaces 2
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bConfigurationValue 1
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iConfiguration 0
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bmAttributes 0x80
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(Bus Powered)
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MaxPower 500mA
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Interface Association:
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bLength 8
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bDescriptorType 11
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bFirstInterface 0
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bInterfaceCount 2
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bFunctionClass 14 Video
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bFunctionSubClass 3 Video Interface Collection
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bFunctionProtocol 0
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iFunction 5
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 0
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bAlternateSetting 0
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bNumEndpoints 1
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bInterfaceClass 14 Video
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bInterfaceSubClass 1 Video Control
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bInterfaceProtocol 0
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iInterface 5
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VideoControl Interface Descriptor:
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bLength 13
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bDescriptorType 36
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bDescriptorSubtype 1 (HEADER)
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bcdUVC 1.00
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wTotalLength 0x004f
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dwClockFrequency 15.000000MHz
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bInCollection 1
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baInterfaceNr( 0) 1
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VideoControl Interface Descriptor:
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bLength 9
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bDescriptorType 36
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bDescriptorSubtype 3 (OUTPUT_TERMINAL)
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bTerminalID 4
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wTerminalType 0x0101 USB Streaming
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bAssocTerminal 0
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bSourceID 3
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iTerminal 0
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VideoControl Interface Descriptor:
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bLength 28
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bDescriptorType 36
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bDescriptorSubtype 6 (EXTENSION_UNIT)
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bUnitID 3
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guidExtensionCode {4cf18db6-abd0-495c-9876-1fa3942ff9fa}
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bNumControl 24
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bNrPins 1
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baSourceID( 0) 2
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bControlSize 3
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bmControls( 0) 0xff
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bmControls( 1) 0xff
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bmControls( 2) 0xff
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iExtension 0
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VideoControl Interface Descriptor:
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bLength 18
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bDescriptorType 36
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bDescriptorSubtype 2 (INPUT_TERMINAL)
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bTerminalID 1
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wTerminalType 0x0201 Camera Sensor
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bAssocTerminal 0
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iTerminal 0
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wObjectiveFocalLengthMin 0
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wObjectiveFocalLengthMax 0
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wOcularFocalLength 0
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bControlSize 3
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bmControls 0x0000000e
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Auto-Exposure Mode
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Auto-Exposure Priority
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Exposure Time (Absolute)
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VideoControl Interface Descriptor:
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bLength 11
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bDescriptorType 36
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bDescriptorSubtype 5 (PROCESSING_UNIT)
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Warning: Descriptor too short
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bUnitID 2
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bSourceID 1
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wMaxMultiplier 0
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bControlSize 2
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bmControls 0x0000177f
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Brightness
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Contrast
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Hue
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Saturation
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Sharpness
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Gamma
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White Balance Temperature
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Backlight Compensation
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Gain
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Power Line Frequency
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White Balance Temperature, Auto
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iProcessing 0
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bmVideoStandards 0x62
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NTSC - 525/60
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PAL - 525/60
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x83 EP 3 IN
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bmAttributes 3
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Transfer Type Interrupt
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Synch Type None
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Usage Type Data
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wMaxPacketSize 0x0010 1x 16 bytes
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bInterval 6
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 1
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bAlternateSetting 0
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bNumEndpoints 0
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bInterfaceClass 14 Video
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bInterfaceSubClass 2 Video Streaming
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bInterfaceProtocol 0
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iInterface 0
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VideoStreaming Interface Descriptor:
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bLength 15
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bDescriptorType 36
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bDescriptorSubtype 1 (INPUT_HEADER)
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bNumFormats 2
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wTotalLength 0x00f7
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bEndPointAddress 129
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bmInfo 0
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bTerminalLink 4
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bStillCaptureMethod 0
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bTriggerSupport 0
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bTriggerUsage 0
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bControlSize 1
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bmaControls( 0) 0
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bmaControls( 1) 0
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VideoStreaming Interface Descriptor:
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bLength 27
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bDescriptorType 36
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bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
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bFormatIndex 1
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bNumFrameDescriptors 2
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guidFormat {85f6cc1d-0c9f-44f5-9ce0-97c7dd8c98ab}
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bBitsPerPixel 16
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bDefaultFrameIndex 1
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bAspectRatioX 0
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bAspectRatioY 0
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bmInterlaceFlags 0x00
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Interlaced stream or variable: No
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Fields per frame: 2 fields
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Field 1 first: No
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Field pattern: Field 1 only
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bCopyProtect 0
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VideoStreaming Interface Descriptor:
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bLength 30
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bDescriptorType 36
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bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
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bFrameIndex 1
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bmCapabilities 0x00
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Still image unsupported
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wWidth 480
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wHeight 320
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dwMinBitRate 12288000
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dwMaxBitRate 12288000
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dwMaxVideoFrameBufferSize 307200
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dwDefaultFrameInterval 2000000
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bFrameIntervalType 1
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dwFrameInterval( 0) 2000000
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VideoStreaming Interface Descriptor:
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bLength 30
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bDescriptorType 36
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bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
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bFrameIndex 2
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bmCapabilities 0x00
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Still image unsupported
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wWidth 640
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wHeight 480
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dwMinBitRate 73728000
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dwMaxBitRate 73728000
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dwMaxVideoFrameBufferSize 614400
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dwDefaultFrameInterval 666666
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bFrameIntervalType 1
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dwFrameInterval( 0) 666666
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VideoStreaming Interface Descriptor:
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bLength 11
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bDescriptorType 36
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bDescriptorSubtype 6 (FORMAT_MJPEG)
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bFormatIndex 2
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bNumFrameDescriptors 4
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bFlags 0
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Fixed-size samples: No
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bDefaultFrameIndex 1
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bAspectRatioX 0
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bAspectRatioY 0
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bmInterlaceFlags 0x00
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Interlaced stream or variable: No
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Fields per frame: 1 fields
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Field 1 first: No
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Field pattern: Field 1 only
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bCopyProtect 0
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VideoStreaming Interface Descriptor:
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bLength 30
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bDescriptorType 36
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bDescriptorSubtype 7 (FRAME_MJPEG)
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bFrameIndex 1
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bmCapabilities 0x00
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Still image unsupported
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wWidth 640
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wHeight 480
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dwMinBitRate 36864000
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dwMaxBitRate 36864000
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dwMaxVideoFrameBufferSize 307789
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dwDefaultFrameInterval 666666
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bFrameIntervalType 1
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dwFrameInterval( 0) 666666
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VideoStreaming Interface Descriptor:
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bLength 38
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bDescriptorType 36
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bDescriptorSubtype 7 (FRAME_MJPEG)
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bFrameIndex 2
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bmCapabilities 0x00
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Still image unsupported
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wWidth 480
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wHeight 320
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dwMinBitRate 6144000
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dwMaxBitRate 18432000
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dwMaxVideoFrameBufferSize 154189
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dwDefaultFrameInterval 666666
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bFrameIntervalType 3
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dwFrameInterval( 0) 666666
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dwFrameInterval( 1) 1000000
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dwFrameInterval( 2) 2000000
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VideoStreaming Interface Descriptor:
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bLength 30
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bDescriptorType 36
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bDescriptorSubtype 7 (FRAME_MJPEG)
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bFrameIndex 3
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bmCapabilities 0x00
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Still image unsupported
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wWidth 352
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wHeight 288
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dwMinBitRate 12165120
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dwMaxBitRate 12165120
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dwMaxVideoFrameBufferSize 101965
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dwDefaultFrameInterval 666666
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bFrameIntervalType 1
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dwFrameInterval( 0) 666666
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VideoStreaming Interface Descriptor:
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bLength 30
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bDescriptorType 36
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bDescriptorSubtype 7 (FRAME_MJPEG)
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bFrameIndex 4
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bmCapabilities 0x00
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Still image unsupported
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wWidth 320
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wHeight 240
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dwMinBitRate 9216000
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dwMaxBitRate 9216000
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dwMaxVideoFrameBufferSize 77389
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dwDefaultFrameInterval 666666
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bFrameIntervalType 1
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dwFrameInterval( 0) 666666
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VideoStreaming Interface Descriptor:
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bLength 6
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bDescriptorType 36
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bDescriptorSubtype 13 (COLORFORMAT)
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bColorPrimaries 1 (BT.709,sRGB)
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bTransferCharacteristics 1 (BT.709)
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bMatrixCoefficients 4 (SMPTE 170M (BT.601))
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Interface Descriptor:
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bLength 9
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bDescriptorType 4
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bInterfaceNumber 1
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bAlternateSetting 1
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bNumEndpoints 1
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bInterfaceClass 14 Video
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bInterfaceSubClass 2 Video Streaming
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bInterfaceProtocol 0
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iInterface 0
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Endpoint Descriptor:
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bLength 7
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bDescriptorType 5
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bEndpointAddress 0x81 EP 1 IN
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bmAttributes 5
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Transfer Type Isochronous
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Synch Type Asynchronous
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Usage Type Data
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wMaxPacketSize 0x03bc 1x 956 bytes
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bInterval 1
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*/
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static uint8_t config_desc_bytes [] = {
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0x09, 0x02, 0x85, 0x01, 0x02, 0x01, 0x00, 0x80, 0xFA, 0x08, 0x0B, 0x00, 0x02, 0x0E, 0x03, 0x00, 0x05, 0x09, 0x04,
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0x00, 0x00, 0x01, 0x0E, 0x01, 0x00, 0x05, 0x0D, 0x24, 0x01, 0x00, 0x01, 0x4F, 0x00, 0xC0, 0xE1, 0xE4, 0x00, 0x01,
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0x01, 0x09, 0x24, 0x03, 0x04, 0x01, 0x01, 0x00, 0x03, 0x00, 0x1C, 0x24, 0x06, 0x03, 0xB6, 0x8D, 0xF1, 0x4C, 0xD0,
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0xAB, 0x5C, 0x49, 0x76, 0x98, 0xFA, 0xF9, 0x2F, 0x94, 0xA3, 0x1F, 0x18, 0x01, 0x02, 0x03, 0xFF, 0xFF, 0xFF, 0x00,
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0x12, 0x24, 0x02, 0x01, 0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x0E, 0x00, 0x00, 0x0B,
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0x24, 0x05, 0x02, 0x01, 0x00, 0x00, 0x02, 0x7F, 0x17, 0x00, 0x07, 0x05, 0x83, 0x03, 0x10, 0x00, 0x06, 0x05, 0x25,
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0x03, 0x80, 0x00, 0x09, 0x04, 0x01, 0x00, 0x00, 0x0E, 0x02, 0x00, 0x00, 0x0F, 0x24, 0x01, 0x02, 0xF7, 0x00, 0x81,
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0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x1B, 0x24, 0x04, 0x01, 0x02, 0x1D, 0xCC, 0xF6, 0x85, 0x9F, 0x0C,
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0xF5, 0x44, 0xE0, 0x9C, 0xAB, 0x98, 0x8C, 0xDD, 0xC7, 0x97, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x24, 0x05,
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0x01, 0x00, 0xE0, 0x01, 0x40, 0x01, 0x00, 0x80, 0xBB, 0x00, 0x00, 0x80, 0xBB, 0x00, 0x00, 0xB0, 0x04, 0x00, 0x80,
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0x84, 0x1E, 0x00, 0x01, 0x80, 0x84, 0x1E, 0x00, 0x1E, 0x24, 0x05, 0x02, 0x00, 0x80, 0x02, 0xE0, 0x01, 0x00, 0x00,
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0x65, 0x04, 0x00, 0x00, 0x65, 0x04, 0x00, 0x60, 0x09, 0x00, 0x2A, 0x2C, 0x0A, 0x00, 0x01, 0x2A, 0x2C, 0x0A, 0x00,
|
|
|
|
|
0x0B, 0x24, 0x06, 0x02, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x24, 0x07, 0x01, 0x00, 0x80, 0x02, 0xE0,
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|
|
|
0x01, 0x00, 0x80, 0x32, 0x02, 0x00, 0x80, 0x32, 0x02, 0x4D, 0xB2, 0x04, 0x00, 0x2A, 0x2C, 0x0A, 0x00, 0x01, 0x2A,
|
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|
0x2C, 0x0A, 0x00, 0x26, 0x24, 0x07, 0x02, 0x00, 0xE0, 0x01, 0x40, 0x01, 0x00, 0xC0, 0x5D, 0x00, 0x00, 0x40, 0x19,
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|
0x01, 0x4D, 0x5A, 0x02, 0x00, 0x2A, 0x2C, 0x0A, 0x00, 0x03, 0x2A, 0x2C, 0x0A, 0x00, 0x40, 0x42, 0x0F, 0x00, 0x80,
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|
0x84, 0x1E, 0x00, 0x1E, 0x24, 0x07, 0x03, 0x00, 0x60, 0x01, 0x20, 0x01, 0x00, 0xA0, 0xB9, 0x00, 0x00, 0xA0, 0xB9,
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|
0x00, 0x4D, 0x8E, 0x01, 0x00, 0x2A, 0x2C, 0x0A, 0x00, 0x01, 0x2A, 0x2C, 0x0A, 0x00, 0x1E, 0x24, 0x07, 0x04, 0x00,
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|
0x40, 0x01, 0xF0, 0x00, 0x00, 0xA0, 0x8C, 0x00, 0x00, 0xA0, 0x8C, 0x00, 0x4D, 0x2E, 0x01, 0x00, 0x2A, 0x2C, 0x0A,
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|
0x00, 0x01, 0x2A, 0x2C, 0x0A, 0x00, 0x06, 0x24, 0x0D, 0x01, 0x01, 0x04, 0x09, 0x04, 0x01, 0x01, 0x01, 0x0E, 0x02,
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0x00, 0x00, 0x07, 0x05, 0x81, 0x05, 0xBC, 0x03, 0x01,
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};
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|
_Static_assert(sizeof(config_desc_bytes) == 0x0185, "Configuration Descriptor size does not match");
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|
#define TEST_NUM_INTF_DESC 3 //Total number of interface descriptors (including alternate)
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|
// --------------------- Sub-Test 1 ------------------------
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|
/*
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|
Test if we can walk the configuration descriptor to find each interface descriptor
|
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|
|
*/
|
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|
|
|
static void test_walk_desc(const usb_config_desc_t *config_desc)
|
|
|
|
|
{
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|
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|
int offset = 0;
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|
const usb_standard_desc_t *cur_desc = (usb_standard_desc_t *)config_desc;
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|
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|
for (int i = 0; i < TEST_NUM_INTF_DESC; i++) {
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2021-08-31 02:14:04 -04:00
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cur_desc = usb_parse_next_descriptor_of_type(cur_desc, config_desc->wTotalLength, USB_B_DESCRIPTOR_TYPE_INTERFACE, &offset);
|
2021-08-24 11:20:50 -04:00
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TEST_ASSERT_NOT_EQUAL(NULL, cur_desc);
|
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|
|
|
}
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|
|
//Attempting to look for another interface descriptor should result in NULL
|
2021-08-31 02:14:04 -04:00
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|
cur_desc = usb_parse_next_descriptor_of_type(cur_desc, config_desc->wTotalLength, USB_B_DESCRIPTOR_TYPE_INTERFACE, &offset);
|
2021-08-24 11:20:50 -04:00
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TEST_ASSERT_EQUAL(NULL, cur_desc);
|
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|
|
|
}
|
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|
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|
|
|
|
/*
|
|
|
|
|
Test if the count of number of alternate descriptors is correct
|
|
|
|
|
*/
|
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|
|
static void test_alt_intf_desc_count(const usb_config_desc_t *config_desc)
|
|
|
|
|
{
|
|
|
|
|
//bInterface 0 has no alternate interfaces
|
2021-08-31 02:14:04 -04:00
|
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TEST_ASSERT_EQUAL(0, usb_parse_interface_number_of_alternate(config_desc, 0));
|
2021-08-24 11:20:50 -04:00
|
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|
//bInterface 1 has 1 alternate interface
|
2021-08-31 02:14:04 -04:00
|
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TEST_ASSERT_EQUAL(1, usb_parse_interface_number_of_alternate(config_desc, 1));
|
2021-08-24 11:20:50 -04:00
|
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|
//Non existent bInterface 2 should return -1
|
2021-08-31 02:14:04 -04:00
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|
TEST_ASSERT_EQUAL(-1, usb_parse_interface_number_of_alternate(config_desc, 2));
|
2021-08-24 11:20:50 -04:00
|
|
|
}
|
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|
|
static void test_parse_intf_and_ep(const usb_config_desc_t *config_desc)
|
|
|
|
|
{
|
|
|
|
|
int offset_intf = 0;
|
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|
|
|
|
|
|
|
|
//Get bInterfaceNumber 0 (index 0)
|
2021-08-31 02:14:04 -04:00
|
|
|
const usb_intf_desc_t *intf_desc = usb_parse_interface_descriptor(config_desc, 0, 0, &offset_intf);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, intf_desc);
|
|
|
|
|
//Should only have one endpoint
|
|
|
|
|
int offset_ep = offset_intf;
|
2021-08-31 02:14:04 -04:00
|
|
|
const usb_ep_desc_t *ep_desc = usb_parse_endpoint_descriptor_by_index(intf_desc, 0, config_desc->wTotalLength, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, ep_desc);
|
|
|
|
|
TEST_ASSERT_EQUAL(0x83, ep_desc->bEndpointAddress);
|
|
|
|
|
offset_ep = offset_intf;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_index(intf_desc, 1, config_desc->wTotalLength, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_EQUAL(NULL, ep_desc);
|
|
|
|
|
|
|
|
|
|
//Get bInterfaceNumber 1 alternate setting 0
|
|
|
|
|
offset_intf = 0;
|
2021-08-31 02:14:04 -04:00
|
|
|
intf_desc = usb_parse_interface_descriptor(config_desc, 1, 0, &offset_intf);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, intf_desc);
|
|
|
|
|
//Should have no endpoints
|
|
|
|
|
offset_ep = offset_intf;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_index(intf_desc, 0, config_desc->wTotalLength, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_EQUAL(NULL, ep_desc);
|
|
|
|
|
|
|
|
|
|
//Get bInterfaceNumber 1 alternate setting 1
|
|
|
|
|
offset_intf = 0;
|
2021-08-31 02:14:04 -04:00
|
|
|
intf_desc = usb_parse_interface_descriptor(config_desc, 1, 1, &offset_intf);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, intf_desc);
|
|
|
|
|
//Should only have one endpoint
|
|
|
|
|
offset_ep = offset_intf;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_index(intf_desc, 0, config_desc->wTotalLength, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, ep_desc);
|
|
|
|
|
TEST_ASSERT_EQUAL(0x81, ep_desc->bEndpointAddress);
|
|
|
|
|
offset_ep = offset_intf;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_index(intf_desc, 1, config_desc->wTotalLength, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_EQUAL(NULL, ep_desc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void test_parse_ep_by_address(const usb_config_desc_t *config_desc)
|
|
|
|
|
{
|
|
|
|
|
int offset_ep = 0;
|
|
|
|
|
//Get bInterface 0 bAlternateSetting 0 EP 0x83
|
2021-08-31 02:14:04 -04:00
|
|
|
const usb_ep_desc_t *ep_desc = usb_parse_endpoint_descriptor_by_address(config_desc, 0, 0, 0x83, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, ep_desc);
|
|
|
|
|
TEST_ASSERT_EQUAL(0x83, ep_desc->bEndpointAddress);
|
|
|
|
|
//Getting same EP address under different interface should return NULL
|
|
|
|
|
offset_ep = 0;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_address(config_desc, 1, 0, 0x83, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_EQUAL(NULL, ep_desc);
|
|
|
|
|
|
|
|
|
|
//Get bInterface 1 bAlternateSetting 1 EP 0x81
|
|
|
|
|
offset_ep = 0;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_address(config_desc, 1, 1, 0x81, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_NOT_EQUAL(NULL, ep_desc);
|
|
|
|
|
TEST_ASSERT_EQUAL(0x81, ep_desc->bEndpointAddress);
|
|
|
|
|
//Getting same EP address under different interface should return NULL
|
|
|
|
|
offset_ep = 0;
|
2021-08-31 02:14:04 -04:00
|
|
|
ep_desc = usb_parse_endpoint_descriptor_by_address(config_desc, 1, 0, 0x81, &offset_ep);
|
2021-08-24 11:20:50 -04:00
|
|
|
TEST_ASSERT_EQUAL(NULL, ep_desc);
|
|
|
|
|
}
|
|
|
|
|
|
2021-08-31 02:14:04 -04:00
|
|
|
TEST_CASE("Test USB Helpers descriptor parsing", "[usb_host][ignore]")
|
2021-08-24 11:20:50 -04:00
|
|
|
{
|
|
|
|
|
const usb_config_desc_t *config_desc = (const usb_config_desc_t *)config_desc_bytes;
|
|
|
|
|
test_walk_desc(config_desc);
|
|
|
|
|
test_alt_intf_desc_count(config_desc);
|
|
|
|
|
test_parse_intf_and_ep(config_desc);
|
|
|
|
|
test_parse_ep_by_address(config_desc);
|
|
|
|
|
}
|
