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[85.229.7.191]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c24962bbea6sm1228499066b.27.2026.08.24.08.29.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 08:29:40 -0700 (PDT) From: Anders Roxell To: u-boot@lists.u-boot-project.org Cc: marek.vasut@mailbox.org, trini@konsulko.com, ilias.apalodimas@linaro.org, michal.simek@amd.com, lukma@denx.de, alchark@flipper.net, jerome.forissier@arm.com, Jens Wiklander , Simon Glass , Anders Roxell , Mattijs Korpershoek Subject: [PATCH v7 26/63] usb: dwc3: import from kernel v5.1 Date: Mon, 24 Aug 2026 17:26:57 +0200 Message-ID: <20260824152734.159794-27-anders.roxell@linaro.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260824152734.159794-1-anders.roxell@linaro.org> References: <20260824152734.159794-1-anders.roxell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Mon, 24 Aug 2026 16:43:55 +0000 X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.u-boot-project.org From: Jens Wiklander Sync Linux kernel dwc3 changes from v5.0 to v5.1. The following files are preserved across the import: Makefile Kconfig dwc3-meson-g12a.c dwc3-meson-gxl.c dwc3-omap.c dwc3-uniphier.c dwc3-generic.h dwc3-generic.c dwc3-generic-sti.c dwc3-layerscape.c ti_usb_phy.c Skipping unused files: debugfs.c drd.c dwc3-exynos.c dwc3-haps.c dwc3-imx8mp.c dwc3-keystone.c dwc3-octeon.c dwc3-of-simple.c dwc3-pci.c dwc3-qcom.c dwc3-qcom-legacy.c dwc3-rtk.c dwc3-st.c dwc3-xilinx.c host.c trace.c trace.h ulpi.c Note that this is a raw import and doesn't build. A fixup commit at the end of the series fixes that. List of commits: git log --oneline v5.0..v5.1 Commits imported: c7152763f02e usb: dwc3: Reset num_trbs after skipping c5353b225df9 usb: dwc3: gadget: don't enable interrupt when disabling endpoint 1381a5113caf usb: dwc3: debug: purge usage of strcat 7790b3556fcc usb: dwc3: trace: pass trace buffer size to decoding functions 3aec99154db3 usb: dwc3: gadget: remove DWC3_EP_END_TRANSFER_PENDING 9f45581f5eec usb: dwc3: gadget: early giveback if End Transfer already completed 974a1368c33e usb: dwc3: gadget: don't use resource_index as a flag acbfa6c26f21 usb: dwc3: gadget: clear DWC3_EP_TRANSFER_STARTED on cmd complete 7c3d7dc89e57 usb: dwc3: gadget: remove req->started flag b2b6d601365a usb: dwc3: gadget: prevent dwc3_request from being queued twice a3af5e3ad3f1 usb: dwc3: gadget: add dwc3_request status tracking 169e3b68cadb usb: dwc3: gadget: Fix OTG events when gadget driver isn't loaded Signed-off-by: Jens Wiklander Reviewed-by: Simon Glass Signed-off-by: Anders Roxell Reviewed-by: Mattijs Korpershoek --- drivers/usb/dwc3/core.h | 12 ++- drivers/usb/dwc3/debug.h | 156 +++++++++++++++++++++----------------- drivers/usb/dwc3/gadget.c | 65 ++++++++-------- drivers/usb/dwc3/gadget.h | 4 +- 4 files changed, 130 insertions(+), 107 deletions(-) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index df876418cb78..1528d395b156 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -692,7 +692,6 @@ struct dwc3_ep { #define DWC3_EP_WEDGE BIT(2) #define DWC3_EP_TRANSFER_STARTED BIT(3) #define DWC3_EP_PENDING_REQUEST BIT(5) -#define DWC3_EP_END_TRANSFER_PENDING BIT(7) /* This last one is specific to EP0 */ #define DWC3_EP0_DIR_IN BIT(31) @@ -863,6 +862,7 @@ struct dwc3_hwparams { * @num_pending_sgs: counter to pending sgs * @num_queued_sgs: counter to the number of sgs which already got queued * @remaining: amount of data remaining + * @status: internal dwc3 request status tracking * @epnum: endpoint number to which this request refers * @trb: pointer to struct dwc3_trb * @trb_dma: DMA address of @trb @@ -871,7 +871,6 @@ struct dwc3_hwparams { * or unaligned OUT) * @direction: IN or OUT direction flag * @mapped: true when request has been dma-mapped - * @started: request is started */ struct dwc3_request { struct usb_request request; @@ -883,6 +882,14 @@ struct dwc3_request { unsigned num_pending_sgs; unsigned int num_queued_sgs; unsigned remaining; + + unsigned int status; +#define DWC3_REQUEST_STATUS_QUEUED 0 +#define DWC3_REQUEST_STATUS_STARTED 1 +#define DWC3_REQUEST_STATUS_CANCELLED 2 +#define DWC3_REQUEST_STATUS_COMPLETED 3 +#define DWC3_REQUEST_STATUS_UNKNOWN -1 + u8 epnum; struct dwc3_trb *trb; dma_addr_t trb_dma; @@ -892,7 +899,6 @@ struct dwc3_request { unsigned needs_extra_trb:1; unsigned direction:1; unsigned mapped:1; - unsigned started:1; }; /* diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h index 4f75ab3505b7..6759a7efd8d5 100644 --- a/drivers/usb/dwc3/debug.h +++ b/drivers/usb/dwc3/debug.h @@ -193,65 +193,69 @@ static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state) * dwc3_gadget_event_string - returns event name * @event: the event code */ -static inline const char * -dwc3_gadget_event_string(char *str, const struct dwc3_event_devt *event) +static inline const char *dwc3_gadget_event_string(char *str, size_t size, + const struct dwc3_event_devt *event) { enum dwc3_link_state state = event->event_info & DWC3_LINK_STATE_MASK; switch (event->type) { case DWC3_DEVICE_EVENT_DISCONNECT: - sprintf(str, "Disconnect: [%s]", + snprintf(str, size, "Disconnect: [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_RESET: - sprintf(str, "Reset [%s]", dwc3_gadget_link_string(state)); + snprintf(str, size, "Reset [%s]", + dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_CONNECT_DONE: - sprintf(str, "Connection Done [%s]", + snprintf(str, size, "Connection Done [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE: - sprintf(str, "Link Change [%s]", + snprintf(str, size, "Link Change [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_WAKEUP: - sprintf(str, "WakeUp [%s]", dwc3_gadget_link_string(state)); + snprintf(str, size, "WakeUp [%s]", + dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_EOPF: - sprintf(str, "End-Of-Frame [%s]", + snprintf(str, size, "End-Of-Frame [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_SOF: - sprintf(str, "Start-Of-Frame [%s]", + snprintf(str, size, "Start-Of-Frame [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_ERRATIC_ERROR: - sprintf(str, "Erratic Error [%s]", + snprintf(str, size, "Erratic Error [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_CMD_CMPL: - sprintf(str, "Command Complete [%s]", + snprintf(str, size, "Command Complete [%s]", dwc3_gadget_link_string(state)); break; case DWC3_DEVICE_EVENT_OVERFLOW: - sprintf(str, "Overflow [%s]", dwc3_gadget_link_string(state)); + snprintf(str, size, "Overflow [%s]", + dwc3_gadget_link_string(state)); break; default: - sprintf(str, "UNKNOWN"); + snprintf(str, size, "UNKNOWN"); } return str; } -static inline void dwc3_decode_get_status(__u8 t, __u16 i, __u16 l, char *str) +static inline void dwc3_decode_get_status(__u8 t, __u16 i, __u16 l, char *str, + size_t size) { switch (t & USB_RECIP_MASK) { case USB_RECIP_INTERFACE: - sprintf(str, "Get Interface Status(Intf = %d, Length = %d)", - i, l); + snprintf(str, size, "Get Interface Status(Intf = %d, Length = %d)", + i, l); break; case USB_RECIP_ENDPOINT: - sprintf(str, "Get Endpoint Status(ep%d%s)", + snprintf(str, size, "Get Endpoint Status(ep%d%s)", i & ~USB_DIR_IN, i & USB_DIR_IN ? "in" : "out"); break; @@ -259,11 +263,11 @@ static inline void dwc3_decode_get_status(__u8 t, __u16 i, __u16 l, char *str) } static inline void dwc3_decode_set_clear_feature(__u8 t, __u8 b, __u16 v, - __u16 i, char *str) + __u16 i, char *str, size_t size) { switch (t & USB_RECIP_MASK) { case USB_RECIP_DEVICE: - sprintf(str, "%s Device Feature(%s%s)", + snprintf(str, size, "%s Device Feature(%s%s)", b == USB_REQ_CLEAR_FEATURE ? "Clear" : "Set", ({char *s; switch (v) { @@ -311,13 +315,13 @@ static inline void dwc3_decode_set_clear_feature(__u8 t, __u8 b, __u16 v, } s; }) : ""); break; case USB_RECIP_INTERFACE: - sprintf(str, "%s Interface Feature(%s)", + snprintf(str, size, "%s Interface Feature(%s)", b == USB_REQ_CLEAR_FEATURE ? "Clear" : "Set", v == USB_INTRF_FUNC_SUSPEND ? "Function Suspend" : "UNKNOWN"); break; case USB_RECIP_ENDPOINT: - sprintf(str, "%s Endpoint Feature(%s ep%d%s)", + snprintf(str, size, "%s Endpoint Feature(%s ep%d%s)", b == USB_REQ_CLEAR_FEATURE ? "Clear" : "Set", v == USB_ENDPOINT_HALT ? "Halt" : "UNKNOWN", i & ~USB_DIR_IN, @@ -326,15 +330,15 @@ static inline void dwc3_decode_set_clear_feature(__u8 t, __u8 b, __u16 v, } } -static inline void dwc3_decode_set_address(__u16 v, char *str) +static inline void dwc3_decode_set_address(__u16 v, char *str, size_t size) { - sprintf(str, "Set Address(Addr = %02x)", v); + snprintf(str, size, "Set Address(Addr = %02x)", v); } static inline void dwc3_decode_get_set_descriptor(__u8 t, __u8 b, __u16 v, - __u16 i, __u16 l, char *str) + __u16 i, __u16 l, char *str, size_t size) { - sprintf(str, "%s %s Descriptor(Index = %d, Length = %d)", + snprintf(str, size, "%s %s Descriptor(Index = %d, Length = %d)", b == USB_REQ_GET_DESCRIPTOR ? "Get" : "Set", ({ char *s; switch (v >> 8) { @@ -393,87 +397,92 @@ static inline void dwc3_decode_get_set_descriptor(__u8 t, __u8 b, __u16 v, } -static inline void dwc3_decode_get_configuration(__u16 l, char *str) +static inline void dwc3_decode_get_configuration(__u16 l, char *str, + size_t size) { - sprintf(str, "Get Configuration(Length = %d)", l); + snprintf(str, size, "Get Configuration(Length = %d)", l); } -static inline void dwc3_decode_set_configuration(__u8 v, char *str) +static inline void dwc3_decode_set_configuration(__u8 v, char *str, size_t size) { - sprintf(str, "Set Configuration(Config = %d)", v); + snprintf(str, size, "Set Configuration(Config = %d)", v); } -static inline void dwc3_decode_get_intf(__u16 i, __u16 l, char *str) +static inline void dwc3_decode_get_intf(__u16 i, __u16 l, char *str, + size_t size) { - sprintf(str, "Get Interface(Intf = %d, Length = %d)", i, l); + snprintf(str, size, "Get Interface(Intf = %d, Length = %d)", i, l); } -static inline void dwc3_decode_set_intf(__u8 v, __u16 i, char *str) +static inline void dwc3_decode_set_intf(__u8 v, __u16 i, char *str, size_t size) { - sprintf(str, "Set Interface(Intf = %d, Alt.Setting = %d)", i, v); + snprintf(str, size, "Set Interface(Intf = %d, Alt.Setting = %d)", i, v); } -static inline void dwc3_decode_synch_frame(__u16 i, __u16 l, char *str) +static inline void dwc3_decode_synch_frame(__u16 i, __u16 l, char *str, + size_t size) { - sprintf(str, "Synch Frame(Endpoint = %d, Length = %d)", i, l); + snprintf(str, size, "Synch Frame(Endpoint = %d, Length = %d)", i, l); } -static inline void dwc3_decode_set_sel(__u16 l, char *str) +static inline void dwc3_decode_set_sel(__u16 l, char *str, size_t size) { - sprintf(str, "Set SEL(Length = %d)", l); + snprintf(str, size, "Set SEL(Length = %d)", l); } -static inline void dwc3_decode_set_isoch_delay(__u8 v, char *str) +static inline void dwc3_decode_set_isoch_delay(__u8 v, char *str, size_t size) { - sprintf(str, "Set Isochronous Delay(Delay = %d ns)", v); + snprintf(str, size, "Set Isochronous Delay(Delay = %d ns)", v); } /** * dwc3_decode_ctrl - returns a string represetion of ctrl request */ -static inline const char *dwc3_decode_ctrl(char *str, __u8 bRequestType, - __u8 bRequest, __u16 wValue, __u16 wIndex, __u16 wLength) +static inline const char *dwc3_decode_ctrl(char *str, size_t size, + __u8 bRequestType, __u8 bRequest, __u16 wValue, __u16 wIndex, + __u16 wLength) { switch (bRequest) { case USB_REQ_GET_STATUS: - dwc3_decode_get_status(bRequestType, wIndex, wLength, str); + dwc3_decode_get_status(bRequestType, wIndex, wLength, str, + size); break; case USB_REQ_CLEAR_FEATURE: case USB_REQ_SET_FEATURE: dwc3_decode_set_clear_feature(bRequestType, bRequest, wValue, - wIndex, str); + wIndex, str, size); break; case USB_REQ_SET_ADDRESS: - dwc3_decode_set_address(wValue, str); + dwc3_decode_set_address(wValue, str, size); break; case USB_REQ_GET_DESCRIPTOR: case USB_REQ_SET_DESCRIPTOR: dwc3_decode_get_set_descriptor(bRequestType, bRequest, wValue, - wIndex, wLength, str); + wIndex, wLength, str, size); break; case USB_REQ_GET_CONFIGURATION: - dwc3_decode_get_configuration(wLength, str); + dwc3_decode_get_configuration(wLength, str, size); break; case USB_REQ_SET_CONFIGURATION: - dwc3_decode_set_configuration(wValue, str); + dwc3_decode_set_configuration(wValue, str, size); break; case USB_REQ_GET_INTERFACE: - dwc3_decode_get_intf(wIndex, wLength, str); + dwc3_decode_get_intf(wIndex, wLength, str, size); break; case USB_REQ_SET_INTERFACE: - dwc3_decode_set_intf(wValue, wIndex, str); + dwc3_decode_set_intf(wValue, wIndex, str, size); break; case USB_REQ_SYNCH_FRAME: - dwc3_decode_synch_frame(wIndex, wLength, str); + dwc3_decode_synch_frame(wIndex, wLength, str, size); break; case USB_REQ_SET_SEL: - dwc3_decode_set_sel(wLength, str); + dwc3_decode_set_sel(wLength, str, size); break; case USB_REQ_SET_ISOCH_DELAY: - dwc3_decode_set_isoch_delay(wValue, str); + dwc3_decode_set_isoch_delay(wValue, str, size); break; default: - sprintf(str, "%02x %02x %02x %02x %02x %02x %02x %02x", + snprintf(str, size, "%02x %02x %02x %02x %02x %02x %02x %02x", bRequestType, bRequest, cpu_to_le16(wValue) & 0xff, cpu_to_le16(wValue) >> 8, @@ -490,16 +499,15 @@ static inline const char *dwc3_decode_ctrl(char *str, __u8 bRequestType, * dwc3_ep_event_string - returns event name * @event: then event code */ -static inline const char * -dwc3_ep_event_string(char *str, const struct dwc3_event_depevt *event, - u32 ep0state) +static inline const char *dwc3_ep_event_string(char *str, size_t size, + const struct dwc3_event_depevt *event, u32 ep0state) { u8 epnum = event->endpoint_number; size_t len; int status; int ret; - ret = sprintf(str, "ep%d%s: ", epnum >> 1, + ret = snprintf(str, size, "ep%d%s: ", epnum >> 1, (epnum & 1) ? "in" : "out"); if (ret < 0) return "UNKNOWN"; @@ -509,7 +517,7 @@ dwc3_ep_event_string(char *str, const struct dwc3_event_depevt *event, switch (event->endpoint_event) { case DWC3_DEPEVT_XFERCOMPLETE: len = strlen(str); - sprintf(str + len, "Transfer Complete (%c%c%c)", + snprintf(str + len, size - len, "Transfer Complete (%c%c%c)", status & DEPEVT_STATUS_SHORT ? 'S' : 's', status & DEPEVT_STATUS_IOC ? 'I' : 'i', status & DEPEVT_STATUS_LST ? 'L' : 'l'); @@ -517,12 +525,13 @@ dwc3_ep_event_string(char *str, const struct dwc3_event_depevt *event, len = strlen(str); if (epnum <= 1) - sprintf(str + len, " [%s]", dwc3_ep0_state_string(ep0state)); + snprintf(str + len, size - len, " [%s]", + dwc3_ep0_state_string(ep0state)); break; case DWC3_DEPEVT_XFERINPROGRESS: len = strlen(str); - sprintf(str + len, "Transfer In Progress [%d] (%c%c%c)", + snprintf(str + len, size - len, "Transfer In Progress [%d] (%c%c%c)", event->parameters, status & DEPEVT_STATUS_SHORT ? 'S' : 's', status & DEPEVT_STATUS_IOC ? 'I' : 'i', @@ -531,47 +540,51 @@ dwc3_ep_event_string(char *str, const struct dwc3_event_depevt *event, case DWC3_DEPEVT_XFERNOTREADY: len = strlen(str); - sprintf(str + len, "Transfer Not Ready [%d]%s", + snprintf(str + len, size - len, "Transfer Not Ready [%d]%s", event->parameters, status & DEPEVT_STATUS_TRANSFER_ACTIVE ? " (Active)" : " (Not Active)"); + len = strlen(str); + /* Control Endpoints */ if (epnum <= 1) { int phase = DEPEVT_STATUS_CONTROL_PHASE(event->status); switch (phase) { case DEPEVT_STATUS_CONTROL_DATA: - strcat(str, " [Data Phase]"); + snprintf(str + ret, size - ret, + " [Data Phase]"); break; case DEPEVT_STATUS_CONTROL_STATUS: - strcat(str, " [Status Phase]"); + snprintf(str + ret, size - ret, + " [Status Phase]"); } } break; case DWC3_DEPEVT_RXTXFIFOEVT: - strcat(str, "FIFO"); + snprintf(str + ret, size - ret, "FIFO"); break; case DWC3_DEPEVT_STREAMEVT: status = event->status; switch (status) { case DEPEVT_STREAMEVT_FOUND: - sprintf(str + ret, " Stream %d Found", + snprintf(str + ret, size - ret, " Stream %d Found", event->parameters); break; case DEPEVT_STREAMEVT_NOTFOUND: default: - strcat(str, " Stream Not Found"); + snprintf(str + ret, size - ret, " Stream Not Found"); break; } break; case DWC3_DEPEVT_EPCMDCMPLT: - strcat(str, "Endpoint Command Complete"); + snprintf(str + ret, size - ret, "Endpoint Command Complete"); break; default: - sprintf(str, "UNKNOWN"); + snprintf(str, size, "UNKNOWN"); } return str; @@ -611,14 +624,15 @@ static inline const char *dwc3_gadget_event_type_string(u8 event) } } -static inline const char *dwc3_decode_event(char *str, u32 event, u32 ep0state) +static inline const char *dwc3_decode_event(char *str, size_t size, u32 event, + u32 ep0state) { const union dwc3_event evt = (union dwc3_event) event; if (evt.type.is_devspec) - return dwc3_gadget_event_string(str, &evt.devt); + return dwc3_gadget_event_string(str, size, &evt.devt); else - return dwc3_ep_event_string(str, &evt.depevt, ep0state); + return dwc3_ep_event_string(str, size, &evt.depevt, ep0state); } static inline const char *dwc3_ep_cmd_status_string(int status) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 6c9b76bcc2e1..e293400cc6e9 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -174,7 +174,6 @@ static void dwc3_gadget_del_and_unmap_request(struct dwc3_ep *dep, { struct dwc3 *dwc = dep->dwc; - req->started = false; list_del(&req->list); req->remaining = 0; req->needs_extra_trb = false; @@ -209,6 +208,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, struct dwc3 *dwc = dep->dwc; dwc3_gadget_del_and_unmap_request(dep, req, status); + req->status = DWC3_REQUEST_STATUS_COMPLETED; spin_unlock(&dwc->lock); usb_gadget_giveback_request(&dep->endpoint, &req->request); @@ -384,19 +384,9 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned cmd, trace_dwc3_gadget_ep_cmd(dep, cmd, params, cmd_status); - if (ret == 0) { - switch (DWC3_DEPCMD_CMD(cmd)) { - case DWC3_DEPCMD_STARTTRANSFER: - dep->flags |= DWC3_EP_TRANSFER_STARTED; - dwc3_gadget_ep_get_transfer_index(dep); - break; - case DWC3_DEPCMD_ENDTRANSFER: - dep->flags &= ~DWC3_EP_TRANSFER_STARTED; - break; - default: - /* nothing */ - break; - } + if (ret == 0 && DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) { + dep->flags |= DWC3_EP_TRANSFER_STARTED; + dwc3_gadget_ep_get_transfer_index(dep); } if (saved_config) { @@ -642,7 +632,6 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action) dep->type = usb_endpoint_type(desc); dep->flags |= DWC3_EP_ENABLED; - dep->flags &= ~DWC3_EP_END_TRANSFER_PENDING; reg = dwc3_readl(dwc->regs, DWC3_DALEPENA); reg |= DWC3_DALEPENA_EP(dep->number); @@ -698,12 +687,13 @@ out: return 0; } -static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force); +static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, + bool interrupt); static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep) { struct dwc3_request *req; - dwc3_stop_active_transfer(dep, true); + dwc3_stop_active_transfer(dep, true, false); /* - giveback all requests to gadget driver */ while (!list_empty(&dep->started_list)) { @@ -748,7 +738,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) dep->stream_capable = false; dep->type = 0; - dep->flags &= DWC3_EP_END_TRANSFER_PENDING; + dep->flags = 0; /* Clear out the ep descriptors for non-ep0 */ if (dep->number > 1) { @@ -847,6 +837,7 @@ static struct usb_request *dwc3_gadget_ep_alloc_request(struct usb_ep *ep, req->direction = dep->direction; req->epnum = dep->number; req->dep = dep; + req->status = DWC3_REQUEST_STATUS_UNKNOWN; trace_dwc3_alloc_request(req); @@ -1360,7 +1351,7 @@ static int dwc3_gadget_start_isoc_quirk(struct dwc3_ep *dep) * to wait for the next XferNotReady to test the command again */ if (cmd_status == 0) { - dwc3_stop_active_transfer(dep, true); + dwc3_stop_active_transfer(dep, true, true); return 0; } } @@ -1435,6 +1426,11 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) &req->request, req->dep->name)) return -EINVAL; + if (WARN(req->status < DWC3_REQUEST_STATUS_COMPLETED, + "%s: request %pK already in flight\n", + dep->name, &req->request)) + return -EINVAL; + pm_runtime_get(dwc->dev); req->request.actual = 0; @@ -1443,6 +1439,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) trace_dwc3_ep_queue(req); list_add_tail(&req->list, &dep->pending_list); + req->status = DWC3_REQUEST_STATUS_QUEUED; /* * NOTICE: Isochronous endpoints should NEVER be prestarted. We must @@ -1506,6 +1503,8 @@ static void dwc3_gadget_ep_skip_trbs(struct dwc3_ep *dep, struct dwc3_request *r trb->ctrl &= ~DWC3_TRB_CTRL_HWO; dwc3_ep_inc_deq(dep); } + + req->num_trbs = 0; } static void dwc3_gadget_ep_cleanup_cancelled_requests(struct dwc3_ep *dep) @@ -1547,13 +1546,16 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, } if (r == req) { /* wait until it is processed */ - dwc3_stop_active_transfer(dep, true); + dwc3_stop_active_transfer(dep, true, true); if (!r->trb) goto out0; dwc3_gadget_move_cancelled_request(req); - goto out0; + if (dep->flags & DWC3_EP_TRANSFER_STARTED) + goto out0; + else + goto out1; } dev_err(dwc->dev, "request %pK was not queued to %s\n", request, ep->name); @@ -1561,6 +1563,7 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, goto out0; } +out1: dwc3_gadget_giveback(dep, req, -ECONNRESET); out0: @@ -2500,7 +2503,7 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep, dwc3_gadget_ep_cleanup_completed_requests(dep, event, status); if (stop) { - dwc3_stop_active_transfer(dep, true); + dwc3_stop_active_transfer(dep, true, true); dep->flags = DWC3_EP_ENABLED; } @@ -2547,7 +2550,7 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, dep = dwc->eps[epnum]; if (!(dep->flags & DWC3_EP_ENABLED)) { - if (!(dep->flags & DWC3_EP_END_TRANSFER_PENDING)) + if (!(dep->flags & DWC3_EP_TRANSFER_STARTED)) return; /* Handle only EPCMDCMPLT when EP disabled */ @@ -2571,7 +2574,7 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, cmd = DEPEVT_PARAMETER_CMD(event->parameters); if (cmd == DWC3_DEPCMD_ENDTRANSFER) { - dep->flags &= ~DWC3_EP_END_TRANSFER_PENDING; + dep->flags &= ~DWC3_EP_TRANSFER_STARTED; dwc3_gadget_ep_cleanup_cancelled_requests(dep); } break; @@ -2621,15 +2624,15 @@ static void dwc3_reset_gadget(struct dwc3 *dwc) } } -static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force) +static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, + bool interrupt) { struct dwc3 *dwc = dep->dwc; struct dwc3_gadget_ep_cmd_params params; u32 cmd; int ret; - if ((dep->flags & DWC3_EP_END_TRANSFER_PENDING) || - !dep->resource_index) + if (!(dep->flags & DWC3_EP_TRANSFER_STARTED)) return; /* @@ -2665,17 +2668,15 @@ static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force) cmd = DWC3_DEPCMD_ENDTRANSFER; cmd |= force ? DWC3_DEPCMD_HIPRI_FORCERM : 0; - cmd |= DWC3_DEPCMD_CMDIOC; + cmd |= interrupt ? DWC3_DEPCMD_CMDIOC : 0; cmd |= DWC3_DEPCMD_PARAM(dep->resource_index); memset(¶ms, 0, sizeof(params)); ret = dwc3_send_gadget_ep_cmd(dep, cmd, ¶ms); WARN_ON_ONCE(ret); dep->resource_index = 0; - if (dwc3_is_usb31(dwc) || dwc->revision < DWC3_REVISION_310A) { - dep->flags |= DWC3_EP_END_TRANSFER_PENDING; + if (dwc3_is_usb31(dwc) || dwc->revision < DWC3_REVISION_310A) udelay(100); - } } static void dwc3_clear_stall_all_ep(struct dwc3 *dwc) @@ -3339,6 +3340,8 @@ int dwc3_gadget_init(struct dwc3 *dwc) goto err4; } + dwc3_gadget_set_speed(&dwc->gadget, dwc->maximum_speed); + return 0; err4: diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h index 023a473648eb..3ed738e86ea7 100644 --- a/drivers/usb/dwc3/gadget.h +++ b/drivers/usb/dwc3/gadget.h @@ -75,7 +75,7 @@ static inline void dwc3_gadget_move_started_request(struct dwc3_request *req) { struct dwc3_ep *dep = req->dep; - req->started = true; + req->status = DWC3_REQUEST_STATUS_STARTED; list_move_tail(&req->list, &dep->started_list); } @@ -90,7 +90,7 @@ static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req) { struct dwc3_ep *dep = req->dep; - req->started = false; + req->status = DWC3_REQUEST_STATUS_CANCELLED; list_move_tail(&req->list, &dep->cancelled_list); } -- 2.53.0