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Tue, 22 Sep 2026 09:02:10 +0000 From: Jamin Lin To: =?iso-8859-1?Q?C=E9dric_Le_Goater?= , Peter Maydell , Steven Lee , Troy Lee , Kane Chen , Andrew Jeffery , Joel Stanley , "open list:ASPEED BMCs" , "open list:All patches CC here" CC: Jamin Lin , Troy Lee Subject: [PATCH v1 12/19] hw/usb/aspeed-udc: Rename the transfer helpers after their DMA mode Thread-Topic: [PATCH v1 12/19] hw/usb/aspeed-udc: Rename the transfer helpers after their DMA mode Thread-Index: AQHdSnEN+phEY5CEoE2PkrYnuVIONA== Date: Tue, 22 Sep 2026 09:02:10 +0000 Message-ID: <20260922090154.1792077-13-jamin_lin@aspeedtech.com> References: <20260922090154.1792077-1-jamin_lin@aspeedtech.com> In-Reply-To: <20260922090154.1792077-1-jamin_lin@aspeedtech.com> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: 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_|TY1PPFFE5B965AC:EE_ x-ms-office365-filtering-correlation-id: 874fe988-5284-4ae3-a3b6-08df18882fbd x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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envelope-from=jamin_lin@aspeedtech.com; helo=OS8PR02CU002.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_NONE=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-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The controller can run an endpoint in descriptor list mode or in single=0A= stage mode. Put the mode in the helper names. That makes the code=0A= easier to read.=0A= =0A= No functional change.=0A= =0A= Signed-off-by: Jamin Lin =0A= ---=0A= hw/usb/aspeed-udc.c | 30 +++++++++++++++---------------=0A= 1 file changed, 15 insertions(+), 15 deletions(-)=0A= =0A= diff --git a/hw/usb/aspeed-udc.c b/hw/usb/aspeed-udc.c=0A= index bdbd1a78b8..b43f077c2d 100644=0A= --- a/hw/usb/aspeed-udc.c=0A= +++ b/hw/usb/aspeed-udc.c=0A= @@ -459,8 +459,8 @@ static bool aspeed_udc_ep_copy_to_pkt(AspeedUDCState *s= , int ep, uint32_t addr,=0A= * This function raises the endpoint ACK by itself when the ring becomes e= mpty=0A= * or when a descriptor asks for an interrupt.=0A= */=0A= -static AspeedUDCXferResult aspeed_udc_ep_xfer_in(AspeedUDCState *s, int ep= ,=0A= - USBPacket *p)=0A= +static AspeedUDCXferResult aspeed_udc_ep_xfer_in_desc(AspeedUDCState *s,= =0A= + int ep, USBPacket *p= )=0A= {=0A= QEMUIOVector *pktiov =3D p->combined ? &p->combined->iov : &p->iov;=0A= AspeedUDCEP *e =3D &s->ep[ep];=0A= @@ -568,15 +568,15 @@ static AspeedUDCXferResult aspeed_udc_ep_xfer_in(Aspe= edUDCState *s, int ep,=0A= =0A= /*=0A= * OUT transfer: receive data from the host by copying its OUT packet into= the=0A= - * buffer the guest gadget driver set up (single-stage mode).=0A= + * buffer the guest gadget driver set up.=0A= *=0A= * A host packet can be bigger than one buffer, so we copy at most PKT_SIZ= E=0A= * bytes per call, continuing from where the last call stopped=0A= * (p->actual_length). The caller keeps the packet parked until it is full= y=0A= * copied.=0A= */=0A= -static AspeedUDCXferResult aspeed_udc_ep_xfer_out(AspeedUDCState *s, int e= p,=0A= - USBPacket *p)=0A= +static AspeedUDCXferResult aspeed_udc_ep_xfer_out_single(AspeedUDCState *s= ,=0A= + int ep, USBPacket= *p)=0A= {=0A= AspeedUDCEP *e =3D &s->ep[ep];=0A= uint32_t chunk =3D FIELD_EX32(e->regs[R_EP_DMA_STS], EP_DMA_STS, PKT_S= IZE);=0A= @@ -619,7 +619,7 @@ static AspeedUDCXferResult aspeed_udc_ep_xfer_out(Aspee= dUDCState *s, int ep,=0A= * If the request needs more data than was queued, keep it parked and wait= for=0A= * the next kick.=0A= */=0A= -static void aspeed_udc_ep_in_kick(AspeedUDCState *s, int ep, uint32_t val)= =0A= +static void aspeed_udc_ep_in_kick_desc(AspeedUDCState *s, int ep, uint32_t= val)=0A= {=0A= AspeedUDCEP *e =3D &s->ep[ep];=0A= uint32_t cur_rptr =3D FIELD_EX32(e->regs[R_EP_DMA_STS], EP_DMA_STS, RP= TR);=0A= @@ -649,7 +649,7 @@ static void aspeed_udc_ep_in_kick(AspeedUDCState *s, in= t ep, uint32_t val)=0A= return;=0A= }=0A= =0A= - switch (aspeed_udc_ep_xfer_in(s, ep, p)) {=0A= + switch (aspeed_udc_ep_xfer_in_desc(s, ep, p)) {=0A= case ASPEED_UDC_XFER_DONE:=0A= e->pkt =3D NULL;=0A= p->status =3D USB_RET_SUCCESS;=0A= @@ -671,7 +671,7 @@ static void aspeed_udc_ep_in_kick(AspeedUDCState *s, in= t ep, uint32_t val)=0A= * buffer before), copy its data into the buffer now and finish it. If the= =0A= * packet has more data than fits, keep it parked and wait for the next bu= ffer.=0A= */=0A= -static void aspeed_udc_ep_out_kick(AspeedUDCState *s, int ep)=0A= +static void aspeed_udc_ep_out_kick_single(AspeedUDCState *s, int ep)=0A= {=0A= AspeedUDCEP *e =3D &s->ep[ep];=0A= USBPacket *p =3D e->pkt;=0A= @@ -681,7 +681,7 @@ static void aspeed_udc_ep_out_kick(AspeedUDCState *s, i= nt ep)=0A= return;=0A= }=0A= =0A= - switch (aspeed_udc_ep_xfer_out(s, ep, p)) {=0A= + switch (aspeed_udc_ep_xfer_out_single(s, ep, p)) {=0A= case ASPEED_UDC_XFER_DONE:=0A= e->pkt =3D NULL;=0A= p->status =3D USB_RET_SUCCESS;=0A= @@ -727,11 +727,11 @@ static void aspeed_udc_ep_write(void *opaque, hwaddr = offset, uint64_t data,=0A= val &=3D 0x77ffffff;=0A= if (FIELD_EX32(e->regs[R_EP_DMA_CTRL], EP_DMA_CTRL, DESC_OP_EN)) {= =0A= /* IN, descriptor-list mode */=0A= - aspeed_udc_ep_in_kick(s, e->index, val);=0A= + aspeed_udc_ep_in_kick_desc(s, e->index, val);=0A= } else {=0A= /* OUT, single-stage mode */=0A= e->regs[reg] =3D val;=0A= - aspeed_udc_ep_out_kick(s, e->index);=0A= + aspeed_udc_ep_out_kick_single(s, e->index);=0A= }=0A= break;=0A= default:=0A= @@ -895,7 +895,7 @@ static void aspeed_udc_ep_data_in(AspeedUDCState *s, in= t ep, USBPacket *p)=0A= /*=0A= * No IN data is queued yet. Save the packet and return ASYNC=0A= * instead of NAK. A NAK would make the host retry slowly.=0A= - * aspeed_udc_ep_in_kick() serves and completes this packet later,= =0A= + * aspeed_udc_ep_in_kick_desc() serves and completes this packet l= ater,=0A= * once the guest gadget driver queues descriptors.=0A= */=0A= e->pkt =3D p;=0A= @@ -903,7 +903,7 @@ static void aspeed_udc_ep_data_in(AspeedUDCState *s, in= t ep, USBPacket *p)=0A= return;=0A= }=0A= =0A= - switch (aspeed_udc_ep_xfer_in(s, ep, p)) {=0A= + switch (aspeed_udc_ep_xfer_in_desc(s, ep, p)) {=0A= case ASPEED_UDC_XFER_DONE:=0A= p->status =3D USB_RET_SUCCESS;=0A= break;=0A= @@ -931,7 +931,7 @@ static void aspeed_udc_ep_data_out(AspeedUDCState *s, i= nt ep, USBPacket *p)=0A= * No OUT buffer is ready yet. Save the packet and return ASYNC=0A= * instead of NAK. Writing now could use an old buffer address and= =0A= * lose the data (for example a mass-storage CBW). A NAK would mak= e=0A= - * the host retry slowly. aspeed_udc_ep_out_kick() delivers this= =0A= + * the host retry slowly. aspeed_udc_ep_out_kick_single() delivers= this=0A= * packet later, once the guest gadget driver sets up a buffer.=0A= */=0A= e->pkt =3D p;=0A= @@ -939,7 +939,7 @@ static void aspeed_udc_ep_data_out(AspeedUDCState *s, i= nt ep, USBPacket *p)=0A= return;=0A= }=0A= =0A= - switch (aspeed_udc_ep_xfer_out(s, ep, p)) {=0A= + switch (aspeed_udc_ep_xfer_out_single(s, ep, p)) {=0A= case ASPEED_UDC_XFER_DONE:=0A= p->status =3D USB_RET_SUCCESS;=0A= break;=0A= -- =0A= 2.53.0=0A=