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Tue, 10 Nov 2026 08:29:18 +0000 From: Jamin Lin To: =?iso-8859-1?Q?C=E9dric_Le_Goater?= , Peter Maydell , Kane Chen , "open list:ASPEED BMCs" , "open list:All patches CC here" CC: Jamin Lin , Troy Lee Subject: [PATCH v3 00/12] hw/usb/aspeed-udc: Add AST1030 UDC support Thread-Topic: [PATCH v3 00/12] hw/usb/aspeed-udc: Add AST1030 UDC support Thread-Index: AQHdcO2U56EN53BBiU6UZ6QLst/AfA== Date: Tue, 10 Nov 2026 08:29:18 +0000 Message-ID: <20261110082917.240329-1-jamin_lin@aspeedtech.com> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: mx.microsoft.com 1; dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=aspeedtech.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: SEZPR06MB7362:EE_|SEYPR06MB5490:EE_ x-ms-office365-filtering-correlation-id: c3d9283f-42f8-45b0-79e2-08df3f04b68a x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; ARA:13230040|366016|376014|23010399003|1800799024|18002099003|3023799007|10067099003|38070700021|261102123227099003|261028144727099003|56012099006|261022105027099003|261102130727099003|261026140227099003|261026121527099003|261021123027099003|261021135927099003|261021121427099003|261009223027099003|261022075727099003|261022115727099003|260925022911599003|260925021311599003|260925021911599003; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Archived-By: MIME-Version: 1.0 X-OriginatorOrg: aspeedtech.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SEZPR06MB7362.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: c3d9283f-42f8-45b0-79e2-08df3f04b68a X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Nov 2026 08:29:18.4736 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43d4aa98-e35b-4575-8939-080e90d5a249 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: F9FRlmqUwE34WOzL5nrK2No5jADCg6bckVRclJP/rwhURqV3ERg6VDB4kV2c/nEmnvEG9i/7nUWynu0chDLdvu6GhZXi4+WWX2yeEgvo0ls= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEYPR06MB5490 Received-SPF: pass client-ip=2a01:111:f403:c40f::6; envelope-from=jamin_lin@aspeedtech.com; helo=SEYPR02CU001.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 This series adds USB Device Controller (UDC) support for the ASPEED=0A= AST1030 and extends the existing ASPEED UDC model with the transfer=0A= handling required by the AST1030.=0A= =0A= The v1 series included both the usbredir server transport and the ASPEED=0A= AST1030 UDC support. Following review feedback, the two parts have been=0A= split into separate series. The usbredir server transport is now sent=0A= separately, while this series contains the ASPEED AST1030 UDC changes.=0A= =0A= Dependency=0A= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A= =0A= The AST1030 UDC implementation itself does not depend on the usbredir=0A= server transport series. However, the functional test in this series=0A= does depend on it, because the AST1030 has no USB host controller and=0A= requires x-usb-redir-server to export the emulated USB gadget to a USB=0A= host controller in another QEMU instance.=0A= =0A= The functional test therefore depends on:=0A= =0A= [v9,00/19] hw/usb: Add a usbredir server transport=0A= https://patchwork.kernel.org/project/qemu-devel/cover/20261110072818.288334= 9-1-jamin_lin@aspeedtech.com/=0A= =0A= Background=0A= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A= =0A= This work is part of a larger plan to model USB device-side support on=0A= ASPEED BMC/BIC SoCs, which has three goals:=0A= =0A= 1. Model the ASPEED UDC (AST2600 / AST1030). The AST2600 also has USB host= =0A= (EHCI) controllers, so that work targets the AST2600 UDC: its gadget can= =0A= be attached to the SoC's own EHCI bus, letting the guest enumerate its= =0A= own gadget and exercise the UDC end-to-end. [Done]=0A= https://lore.kernel.org/qemu-devel/20260902021542.3194812-1-jamin_lin@as= peedtech.com/=0A= =0A= 2. AST1030 UDC. The AST1030 has no USB host controller, so testing its UDC= =0A= needs a second QEMU instance. The UDC gadget is redirected out of the=0A= guest with libusbredir and attached to another QEMU that runs a USB host= =0A= (a VMM, or an AST2600 / AST2700 guest). [this series]=0A= =0A= 3. ASPEED vHub, as a longer-term goal towards BMC KVM / Virtual Media=0A= support in QEMU. [future]=0A= =0A= This series implements goal 2.=0A= =0A= AST1030 gadget to an AST2700 host=0A= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=0A= =0A= QEMU #1 -M ast1030-evb QEMU #2 -M ast2700a2-evb=0A= +-----------------------------+ +-----------------------------+=0A= | Zephyr usb_dc_aspeed | | Linux ehci-platform |=0A= +--------------+--------------+ +--------------+--------------+=0A= | MMIO | MMIO=0A= +--------------v--------------+ +--------------v--------------+=0A= | aspeed.udc | | EHCI3 (usb-bus.3) |=0A= +--------------+--------------+ +--------------+--------------+=0A= | USBPacket | USBPacket=0A= +--------------v--------------+ +--------------v--------------+=0A= | aspeed.udc-gadget | | usb-redir |=0A= +--------------+--------------+ +--------------+--------------+=0A= | USBPacket |=0A= +--------------v--------------+ |=0A= | x-usb-redir-server | |=0A= +--------------+--------------+ |=0A= | |=0A= +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D unix socket =3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D+=0A= usbredir protocol=0A= =0A= Testing=0A= =3D=3D=3D=3D=3D=3D=3D=0A= =0A= The AST1030 UDC was tested with a Zephyr CDC-ACM gadget. The AST1030=0A= side exports the gadget through x-usb-redir-server:=0A= =0A= $ qemu-system-arm -M ast1030-evb -nographic=0A= -kernel zephyr.bin=0A= -chardev socket,id=3Du,path=3D/tmp/usbredir.sock,server=3Don,wait=3Doff=0A= -device x-usb-redir-server,id=3Dudcredir,chardev=3Du=0A= -device aspeed.udc-gadget,bus=3Dudcredir.0,udc=3D/machine/soc/udc=0A= =0A= uart:~$ usb enable=0A= uart:~$ usb print 1=0A= =0A= The gadget is attached to EHCI3 of an AST2700 guest through the=0A= usb-redir client:=0A= =0A= $ qemu-system-aarch64 -M ast2700a2-evb -nographic=0A= -drive file=3Dimage-bmc,if=3Dmtd,format=3Draw -snapshot=0A= -net nic -net user=0A= -chardev socket,id=3Dr,path=3D/tmp/usbredir.sock=0A= -device usb-redir,chardev=3Dr,bus=3Dusb-bus.3=0A= =0A= The AST2700 guest enumerates the AST1030 gadget:=0A= =0A= root@ast2700-default:~# lsusb=0A= Bus 001 Device 001: ID 1d6b:0002 Linux 6.18.36 ehci_hcd EHCI Host Controlle= r=0A= Bus 001 Device 002: ID 2245:1030 ZEPHYR Zephyr DFU sample=0A= =0A= Data transfer was also checked:=0A= =0A= 2700 -> 1030 =0A= echo '1234567890' > /dev/ttyACM0=0A= 1030 console: Print Data: 0x31 0x32 ... 0x30=0A= =0A= A functional test is added to exercise the AST1030 UDC through this=0A= usbredir setup.=0A= =0A= v1:=0A= 1. Make the SETUP buffer byte addressable=0A= 2. Support single-stage IN transfers=0A= 3. Clear EP_POOL_ACK when no endpoint ack is left=0A= 4. Mask the reserved bits on register writes=0A= 5. Use the endpoint max packet size for OUT transfers=0A= 6. Test the usbredir server transport=0A= 7. Add the USB device controller for AST1030=0A= =0A= v2:=0A= 1. Split the usbredir server transport into a separate series as=0A= suggested during review.=0A= 2. Keep this series focused on the ASPEED UDC changes and AST1030=0A= UDC support.=0A= 3. Add the AST1030 functional test using the usbredir server transport.= =0A= =0A= v3: =0A= 1. Finish an EP0 IN transfer at the status stage to fix an AST1030 UDC cra= sh.=0A= 2. Update the functional test to scan for the AST1030 USB device from AST2= 600=0A= U-Boot to reduce testing time.=0A= =0A= Jamin Lin (12):=0A= hw/usb/aspeed-udc: Make the SETUP buffer byte addressable=0A= hw/usb/aspeed-udc: Finish an EP0 IN transfer at the status stage=0A= hw/usb/aspeed-udc: Mask the reserved bits on register writes=0A= hw/usb/aspeed-udc: Clear EP_POOL_ACK when no endpoint ack is left=0A= hw/usb/aspeed-udc: Rename the transfer helpers after their DMA mode=0A= hw/usb/aspeed-udc: Store the EP_DMA_STS write first=0A= hw/usb/aspeed-udc: Pick the EP_DMA_STS path by direction=0A= hw/usb/aspeed-udc: Support single-stage IN transfers=0A= hw/usb/aspeed-udc: Use the endpoint max packet size for OUT transfers=0A= hw/usb/aspeed-udc: Add trace events for the transfer paths=0A= hw/arm/aspeed_ast10x0: Add the USB device controller=0A= tests/functional/arm/test_aspeed_ast1030: Test the usbredir server=0A= transport=0A= =0A= include/hw/arm/aspeed_soc.h | 1 +=0A= include/hw/usb/aspeed-udc.h | 14 +-=0A= hw/arm/aspeed_ast10x0.c | 13 +-=0A= hw/usb/aspeed-udc.c | 309 ++++++++++++++++----=0A= hw/usb/trace-events | 9 +=0A= tests/functional/arm/test_aspeed_ast1030.py | 51 ++++=0A= 6 files changed, 343 insertions(+), 54 deletions(-)=0A= =0A= -- =0A= 2.43.0=0A=