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Message-ID: <20240729083503.GK300@pendragon.ideasonboard.com>
Date: Mon, 29 Jul 2024 11:35:03 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: 自己 <ccc194101@....com>
Cc: wangyongjun@...inos.cn, zhoulei@...inos.cn, liuyihu@...inos.cn,
lizhenneng@...inos.cn, lihongtao@...inos.cn, mchehab@...nel.org,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
chenchangcheng <chenchangcheng@...inos.cn>
Subject: Re: Re: [PATCH] media: uvcvideo: Block AlcorMicroCorp camera from
reporting key events.
Hello,
HTML e-mails are rejected by mailing lists. Please resend in plain text.
On Mon, Jul 29, 2024 at 08:59:50AM +0800, 自己 wrote:
> Hi Laurent Pinchart,
>
>
> >That sounds like a weird behaviour. What upper layers are doing this ?
>
> When the upper layer receives the KEY_CMERA key, it will turn off the camera
> through the videoX node
>
>
> >Could you please send the output of `lsusb -v -d 1dfc:8513` (running as
> >root if possible) ?
>
> Bus 001 Device 016: ID 1dfc:8513 AlcorMicroCorp USB HD Camera audio
>
> Device Descriptor:
>
> bLength 18
>
> bDescriptorType 1
>
> bcdUSB 2.00
>
> bDeviceClass 239 Miscellaneous Device
>
> bDeviceSubClass 2
>
> bDeviceProtocol 1 Interface Association
>
> bMaxPacketSize0 64
>
> idVendor 0x1dfc
>
> idProduct 0x8513
>
> bcdDevice 0.24
>
> iManufacturer 1 AlcorMicroCorp
>
> iProduct 2 USB HD Camera audio
>
> iSerial 0
>
> bNumConfigurations 1
>
> Configuration Descriptor:
>
> bLength 9
>
> bDescriptorType 2
>
> wTotalLength 0x0255
>
> bNumInterfaces 2
>
> bConfigurationValue 1
>
> iConfiguration 0
>
> bmAttributes 0x80
>
> (Bus Powered)
>
> MaxPower 500mA
>
> Interface Association:
>
> bLength 8
>
> bDescriptorType 11
>
> bFirstInterface 0
>
> bInterfaceCount 2
>
> bFunctionClass 14 Video
>
> bFunctionSubClass 3 Video Interface Collection
>
> bFunctionProtocol 0
>
> iFunction 4 Nantian Camera 8513
>
> Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 4
>
> bInterfaceNumber 0
>
> bAlternateSetting 0
>
> bNumEndpoints 1
>
> bInterfaceClass 14 Video
>
> bInterfaceSubClass 1 Video Control
>
> bInterfaceProtocol 0
>
> iInterface 4 Nantian Camera 8513
>
> VideoControl Interface Descriptor:
>
> bLength 13
>
> bDescriptorType 36
>
> bDescriptorSubtype 1 (HEADER)
>
> bcdUVC 1.00
>
> wTotalLength 0x004f
>
> dwClockFrequency 30.000000MHz
>
> bInCollection 1
>
> baInterfaceNr( 0) 1
>
> VideoControl Interface Descriptor:
>
> bLength 28
>
> bDescriptorType 36
>
> bDescriptorSubtype 6 (EXTENSION_UNIT)
>
> bUnitID 6
>
> guidExtensionCode {68bbd0b0-61a4-4b83-90b7-a6215f3c4f70}
>
> bNumControl 24
>
> bNrPins 1
>
> baSourceID( 0) 2
>
> bControlSize 3
>
> bmControls( 0) 0xff
>
> bmControls( 1) 0xff
>
> bmControls( 2) 0xff
>
> iExtension 0
>
> VideoControl Interface Descriptor:
>
> bLength 18
>
> bDescriptorType 36
>
> bDescriptorSubtype 2 (INPUT_TERMINAL)
>
> bTerminalID 1
>
> wTerminalType 0x0201 Camera Sensor
>
> bAssocTerminal 0
>
> iTerminal 0
>
> wObjectiveFocalLengthMin 0
>
> wObjectiveFocalLengthMax 0
>
> wOcularFocalLength 0
>
> bControlSize 3
>
> bmControls 0x000208aa
>
> Auto-Exposure Mode
>
> Exposure Time (Absolute)
>
> Focus (Absolute)
>
> Iris (Absolute)
>
> PanTilt (Absolute)
>
> Focus, Auto
>
> VideoControl Interface Descriptor:
>
> bLength 11
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (PROCESSING_UNIT)
>
> Warning: Descriptor too short
>
> bUnitID 2
>
> bSourceID 1
>
> wMaxMultiplier 0
>
> bControlSize 2
>
> bmControls 0x0000177f
>
> Brightness
>
> Contrast
>
> Hue
>
> Saturation
>
> Sharpness
>
> Gamma
>
> White Balance Temperature
>
> Backlight Compensation
>
> Gain
>
> Power Line Frequency
>
> White Balance Temperature, Auto
>
> iProcessing 0
>
> bmVideoStandards 0x09
>
> None
>
> SECAM - 625/50
>
> VideoControl Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 36
>
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
>
> bTerminalID 3
>
> wTerminalType 0x0101 USB Streaming
>
> bAssocTerminal 0
>
> bSourceID 2
>
> iTerminal 0
>
> Endpoint Descriptor:
>
> bLength 7
>
> bDescriptorType 5
>
> bEndpointAddress 0x81 EP 1 IN
>
> bmAttributes 3
>
> Transfer Type Interrupt
>
> Synch Type None
>
> Usage Type Data
>
> wMaxPacketSize 0x0010 1x 16 bytes
>
> bInterval 7
>
> Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 4
>
> bInterfaceNumber 1
>
> bAlternateSetting 0
>
> bNumEndpoints 0
>
> bInterfaceClass 14 Video
>
> bInterfaceSubClass 2 Video Streaming
>
> bInterfaceProtocol 0
>
> iInterface 4 Nantian Camera 8513
>
> VideoStreaming Interface Descriptor:
>
> bLength 14
>
> bDescriptorType 36
>
> bDescriptorSubtype 1 (INPUT_HEADER)
>
> bNumFormats 1
>
> wTotalLength 0x0197
>
> bEndPointAddress 130
>
> bmInfo 0
>
> bTerminalLink 3
>
> bStillCaptureMethod 1
>
> bTriggerSupport 1
>
> bTriggerUsage 0
>
> bControlSize 1
>
> bmaControls( 0) 0
>
> VideoStreaming Interface Descriptor:
>
> bLength 27
>
> bDescriptorType 36
>
> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
>
> bFormatIndex 1
>
> bNumFrameDescriptors 12
>
> guidFormat
> {32595559-0000-0010-8000-00aa00389b71}
>
> bBitsPerPixel 16
>
> bDefaultFrameIndex 1
>
> bAspectRatioX 0
>
> bAspectRatioY 0
>
> bmInterlaceFlags 0x00
>
> Interlaced stream or variable: No
>
> Fields per frame: 2 fields
>
> Field 1 first: No
>
> Field pattern: Field 1 only
>
> bCopyProtect 0
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 1
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 2592
>
> wHeight 1944
>
> dwMinBitRate 161243136
>
> dwMaxBitRate 161243136
>
> dwMaxVideoFrameBufferSize 10077696
>
> dwDefaultFrameInterval 5000000
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 5000000
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 2
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 2048
>
> wHeight 1536
>
> dwMinBitRate 100663296
>
> dwMaxBitRate 100663296
>
> dwMaxVideoFrameBufferSize 6291456
>
> dwDefaultFrameInterval 5000000
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 5000000
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 3
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 1600
>
> wHeight 1200
>
> dwMinBitRate 184320000
>
> dwMaxBitRate 184320000
>
> dwMaxVideoFrameBufferSize 3840000
>
> dwDefaultFrameInterval 1666666
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 1666666
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 4
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 1280
>
> wHeight 1024
>
> dwMinBitRate 167772160
>
> dwMaxBitRate 167772160
>
> dwMaxVideoFrameBufferSize 2621440
>
> dwDefaultFrameInterval 1250000
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 1250000
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 5
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 1280
>
> wHeight 960
>
> dwMinBitRate 157286400
>
> dwMaxBitRate 157286400
>
> dwMaxVideoFrameBufferSize 2457600
>
> dwDefaultFrameInterval 1250000
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 1250000
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 6
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 800
>
> wHeight 600
>
> dwMinBitRate 115200000
>
> dwMaxBitRate 115200000
>
> dwMaxVideoFrameBufferSize 960000
>
> dwDefaultFrameInterval 666666
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 666666
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 7
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 640
>
> wHeight 480
>
> dwMinBitRate 147456000
>
> dwMaxBitRate 147456000
>
> dwMaxVideoFrameBufferSize 614400
>
> dwDefaultFrameInterval 333333
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 333333
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 8
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 352
>
> wHeight 288
>
> dwMinBitRate 48660480
>
> dwMaxBitRate 48660480
>
> dwMaxVideoFrameBufferSize 202752
>
> dwDefaultFrameInterval 333333
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 333333
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 9
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 320
>
> wHeight 240
>
> dwMinBitRate 36864000
>
> dwMaxBitRate 36864000
>
> dwMaxVideoFrameBufferSize 153600
>
> dwDefaultFrameInterval 333333
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 333333
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 10
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 176
>
> wHeight 144
>
> dwMinBitRate 12165120
>
> dwMaxBitRate 12165120
>
> dwMaxVideoFrameBufferSize 50688
>
> dwDefaultFrameInterval 333333
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 333333
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 11
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 160
>
> wHeight 120
>
> dwMinBitRate 9216000
>
> dwMaxBitRate 9216000
>
> dwMaxVideoFrameBufferSize 38400
>
> dwDefaultFrameInterval 333333
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 333333
>
> VideoStreaming Interface Descriptor:
>
> bLength 30
>
> bDescriptorType 36
>
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
>
> bFrameIndex 12
>
> bmCapabilities 0x01
>
> Still image supported
>
> wWidth 1024
>
> wHeight 768
>
> dwMinBitRate 125829120
>
> dwMaxBitRate 125829120
>
> dwMaxVideoFrameBufferSize 1572864
>
> dwDefaultFrameInterval 1000000
>
> bFrameIntervalType 1
>
> dwFrameInterval( 0) 1000000
>
> VideoStreaming Interface Descriptor:
>
> bLength 6
>
> bDescriptorType 36
>
> bDescriptorSubtype 13 (COLORFORMAT)
>
> bColorPrimaries 1 (BT.709,sRGB)
>
> bTransferCharacteristics 1 (BT.709)
>
> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
>
> Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 4
>
> bInterfaceNumber 1
>
> bAlternateSetting 1
>
> bNumEndpoints 1
>
> bInterfaceClass 14 Video
>
> bInterfaceSubClass 2 Video Streaming
>
> bInterfaceProtocol 0
>
> iInterface 4 Nantian Camera 8513
>
> Endpoint Descriptor:
>
> bLength 7
>
> bDescriptorType 5
>
> bEndpointAddress 0x82 EP 2 IN
>
> bmAttributes 5
>
> Transfer Type Isochronous
>
> Synch Type Asynchronous
>
> Usage Type Data
>
> wMaxPacketSize 0x1350 3x 848 bytes
>
> bInterval 1
>
> Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 4
>
> bInterfaceNumber 1
>
> bAlternateSetting 2
>
> bNumEndpoints 1
>
> bInterfaceClass 14 Video
>
> bInterfaceSubClass 2 Video Streaming
>
> bInterfaceProtocol 0
>
> iInterface 4 Nantian Camera 8513
>
> Endpoint Descriptor:
>
> bLength 7
>
> bDescriptorType 5
>
> bEndpointAddress 0x82 EP 2 IN
>
> bmAttributes 5
>
> Transfer Type Isochronous
>
> Synch Type Asynchronous
>
> Usage Type Data
>
> wMaxPacketSize 0x0c00 2x 1024 bytes
>
> bInterval 1
>
> Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 4
>
> bInterfaceNumber 1
>
> bAlternateSetting 3
>
> bNumEndpoints 1
>
> bInterfaceClass 14 Video
>
> bInterfaceSubClass 2 Video Streaming
>
> bInterfaceProtocol 0
>
> iInterface 4 Nantian Camera 8513
>
> Endpoint Descriptor:
>
> bLength 7
>
> bDescriptorType 5
>
> bEndpointAddress 0x82 EP 2 IN
>
> bmAttributes 5
>
> Transfer Type Isochronous
>
> Synch Type Asynchronous
>
> Usage Type Data
>
> wMaxPacketSize 0x0400 1x 1024 bytes
>
> bInterval 1
>
> Interface Descriptor:
>
> bLength 9
>
> bDescriptorType 4
>
> bInterfaceNumber 1
>
> bAlternateSetting 4
>
> bNumEndpoints 1
>
> bInterfaceClass 14 Video
>
> bInterfaceSubClass 2 Video Streaming
>
> bInterfaceProtocol 0
>
> iInterface 4 Nantian Camera 8513
>
> Endpoint Descriptor:
>
> bLength 7
>
> bDescriptorType 5
>
> bEndpointAddress 0x82 EP 2 IN
>
> bmAttributes 5
>
> Transfer Type Isochronous
>
> Synch Type Asynchronous
>
> Usage Type Data
>
> wMaxPacketSize 0x0200 1x 512 bytes
>
> bInterval 1
>
> Device Qualifier (for other device speed):
>
> bLength 10
>
> bDescriptorType 6
>
> bcdUSB 2.00
>
> bDeviceClass 239 Miscellaneous Device
>
> bDeviceSubClass 2
>
> bDeviceProtocol 1 Interface Association
>
> bMaxPacketSize0 64
>
> bNumConfigurations 1
>
>
>
>
>
> At 2024-07-26 18:20:57, "Laurent Pinchart" <laurent.pinchart@...asonboard.com> wrote:
> >Hi Chen Changcheng,
> >
> >Thank you for the patch.
> >
> >On Tue, Jul 23, 2024 at 04:29:55PM +0800, chenchangcheng wrote:
> >> From: chenchangcheng <chenchangcheng@...inos.cn>
> >>
> >> When opening the camera, it will send an interrupt transmission
> >> to the host, which is a request initiated by VS to press a button.
> >> But the camera does't have a physical button to send interrupt
> >> transmission.
> >
> >Could you please send the output of `lsusb -v -d 1dfc:8513` (running as
> >root if possible) ?
> >
> >> This button will cause the upper layer to actively turn off the camera.
> >> Ultimately, it resulted in the failure to open the camera.
> >
> >That sounds like a weird behaviour. What upper layers are doing this ?
> >
> >> Signed-off-by: chenchangcheng <chenchangcheng@...inos.cn>
> >> Change-Id: Ie86c311569e8bdc891dc8af12febf6e8643e082f
> >> ---
> >> drivers/media/usb/uvc/uvc_driver.c | 9 +++++++++
> >> drivers/media/usb/uvc/uvc_status.c | 6 +++++-
> >> drivers/media/usb/uvc/uvcvideo.h | 1 +
> >> 3 files changed, 15 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> >> index 07128e0..0bdd23b 100644
> >> --- a/drivers/media/usb/uvc/uvc_driver.c
> >> +++ b/drivers/media/usb/uvc/uvc_driver.c
> >> @@ -2891,6 +2891,15 @@ static const struct usb_device_id uvc_ids[] = {
> >> .bInterfaceClass = USB_CLASS_VENDOR_SPEC,
> >> .bInterfaceSubClass = 1,
> >> .bInterfaceProtocol = 0 },
> >> + /* AlcorMicroCorp Nantian Camera 8513 */
> >> + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
> >> + | USB_DEVICE_ID_MATCH_INT_INFO,
> >> + .idVendor = 0x1dfc,
> >> + .idProduct = 0x8513,
> >> + .bInterfaceClass = USB_CLASS_VIDEO,
> >> + .bInterfaceSubClass = 1,
> >> + .bInterfaceProtocol = 0,
> >> + .driver_info = UVC_INFO_QUIRK(UVC_QUIRK_IGNORE_STATUS_EVENT) },
> >> /* Generic USB Video Class */
> >> { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) },
> >> { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) },
> >> diff --git a/drivers/media/usb/uvc/uvc_status.c b/drivers/media/usb/uvc/uvc_status.c
> >> index 2bdb0ff..17d68e8 100644
> >> --- a/drivers/media/usb/uvc/uvc_status.c
> >> +++ b/drivers/media/usb/uvc/uvc_status.c
> >> @@ -99,8 +99,12 @@ static void uvc_event_streaming(struct uvc_device *dev,
> >> }
> >>
> >> if (status->bEvent == 0) {
> >> - if (len < 4)
> >> + if (len < 4 || (dev->quirks & UVC_QUIRK_IGNORE_STATUS_EVENT)) {
> >> + uvc_trace(UVC_TRACE_STATUS, "Ignore button (intf %u) %s\n",
> >> + status->bOriginator,
> >> + status->bValue[0] ? "pressed" : "released");
> >> return;
> >> + }
> >> uvc_trace(UVC_TRACE_STATUS, "Button (intf %u) %s len %d\n",
> >> status->bOriginator,
> >> status->bValue[0] ? "pressed" : "released", len);
> >> diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
> >> index c7c1baa..8ac3c28 100644
> >> --- a/drivers/media/usb/uvc/uvcvideo.h
> >> +++ b/drivers/media/usb/uvc/uvcvideo.h
> >> @@ -198,6 +198,7 @@
> >> #define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200
> >> #define UVC_QUIRK_RESTORE_CTRLS_ON_INIT 0x00000400
> >> #define UVC_QUIRK_FORCE_Y8 0x00000800
> >> +#define UVC_QUIRK_IGNORE_STATUS_EVENT 0x00001000
> >>
> >> /* Format flags */
> >> #define UVC_FMT_FLAG_COMPRESSED 0x00000001
> >
> >--
> >Regards,
> >
> >Laurent Pinchart
>
> [webmail]
--
Regards,
Laurent Pinchart
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