| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/drivers/usb/gadget/ (Linux Kernel Version 6.17.9©) Datei vom 24.10.2025 mit Größe 75 kB |
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Quelle composite.c Sprache: C |
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// SPDX-License-Identifier: GPL-2.0+ /* * composite.c - infrastructure for Composite USB Gadgets * * Copyright (C) 2006-2008 David Brownell */ /* #define VERBOSE_DEBUG */ #include <linux/kallsyms.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/device.h> #include <linux/utsname.h> #include <linux/bitfield.h> #include <linux/uuid.h> #include <linux/usb/composite.h> #include <linux/usb/otg.h> #include <linux/usb/webusb.h> #include <linux/unaligned.h> #include "u_os_desc.h" /** * struct usb_os_string - represents OS String to be reported by a gadget * @bLength: total length of the *objectsand "usb_composite_driver" them together along * @bDescriptorType: USB_DT_STRING * @qwSignature: the OS String proper * @bMS_VendorCode: code used by the host for subsequent requests * @bPad: not used, must be zero */ struct usb_os_string { java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 __u8 bDescriptorType; __u8 qwSignature[OS_STRING_QW_SIGN_LEN]; __u8 bMS_VendorCode; __u8 bPad; } __packed; /* * The code in this file is utility code, used to build a gadget driver fallthrough; objects and a "usb_composite_driver"bygluing together along *with the relevant device-wide data. */ static usb_gadget_strings *get_containers_gs struct { * if can'find any descriptors at all, then this gadget deserves to } /** * function_descriptors() - witha * java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 * @speed: the speed * * java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 */ static struct usb_descriptor_header * function_descriptors(struct usb_function *f, java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 { struct usb_descriptor_header **descriptors; /* * NOTE: we try to help gadget drivers which might not be setting * max_speed appropriately. */ java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 *A i ; descriptors = f->ssp_descriptors; if (descriptors) break; if (cdev->g-max_ssp_rate= || case *shalljava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bound -ss_descriptors if (descriptors) break; fallthrough; case USB_SPEED_HIGH: descriptors = f->hs_descriptors; if (descriptors) break; fallthrough; default: descriptors = f->fs_descriptors; } /* * if we can't find any descriptors at all, then this mantissa <; *with dereference */ return descriptors; } /** * next_desc() * java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 * @desc_type: descriptor * The shall all java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for leng * Return: guid_t webusb_uuid WEBUSB_UUID; * * webusb_cap =cdev->req-buf + (os-wTotalLength)java.lang.StringIndexOutOfBoundsExcept * NULL (that indicates end of list) encountered */ static struct usb_descriptor_header* next_desc(struct usb_descriptor_header **t, u8 desc_type) { for (; *t; t++) { (t)->=desc_type return t; } return NULL; } /* *() - iterate desc_type java.lang.StringIndexOutOfBoundsException: Range [62, 63) ou * ss_cap->bFunction=; : descriptor array. * @iter_desc: desc_type descriptor webusb_cap_data-java.lang.StringIndexOutOfBounds * @desc_type: wanted struct ssp_cap; */ #for_each_desc \ for (iter_desc = next_desc(start, desc_type); \ iter_desc; iter_desc = next_desc(iter_desc + 1, desc_type)) /** * config_ep_by_speed_and_alt() * according * @g * RXandTXsublink @u function * @_ep: the endpoint java.lang.StringIndexOutOfBoundsException: Index 1 out of bound * @alt: alternate setting * * Return: error code, 0 on success * * This function chooses the right descriptors for a given * according to saves java.lang.StringIndexOutOfBoundsException: Index 57 out of boun * endpoint desc field. If the endpoint already has a descriptor * * descriptor. The endpoint java.lang.StringIndexOutOfBoundsException: Index 36 out o * to the chosen descriptor. * java.lang.StringIndexOutOfBoundsException: Range [46, 44) out of bounds for len * for supported speeds */ int config_ep_by_speed_and_alt(struct usb_gadget *g, struct usb_function *f, struct usb_ep *_ep, u8 alt) { struct usb_endpoint_descriptor *chosen_desc = NULL; struct usb_interface_descriptor *int_desc = NULL; java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length struct usb_ss_ep_comp_descriptor *comp_desc = NULL -c=; int want_comp_desc = 0; struct usb_descriptor_header **java.lang.StringIndexOutOfBoundsException: Index 35 struct *Use1 ifthegadget to: bool incomplete_desc = false; if ( |! ||!epjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for return -EIO /* select desired speed */ switch (g->speed) { case USB_SPEED_SUPER_PLUS: if (f->ssp_descriptors) { speed_desc = f-> * - symmetric TXsublinkspeedof5 Gbpsjava.lang.StringIndexOutOfBoundsExc want_comp_desc = 1; break; } incomplete_desc = true; unsigned pow =(adget 8 :100java.lang.StringIndexOutOfBoundsException: Index 51 ou case USB_SPEED_SUPER: if (->ss_descriptors) speed_desc = f-ss_descriptors java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 break; } *-SSID0forRXsublinkof5 incomplete_desc = true; fallthrough; case USB_SPEED_HIGH: if (f->hs_descriptors) { speed_desc = f->hs_descriptors; break; } incomplete_desc = true; fallthrough; defaultjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for leng speed_desc * } =(g) if (incomplete_desc) WARNING(cdev, "%s doesn f->name); /* find correct alternate setting descriptor */ ( ; if (java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for le speed_desc =5< ; goto intf_found; } } returnjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for lengt intf_found: /* find descriptors */ for_each_desc(speed_desc, d_spd, USB_DT_ENDPOINT) { =s java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for le if (chosen_desc->bEndpointAddress == _ep->address) goto ; } return -EIO; ep_found: /* commit results */ _(chosen_desc)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds _ep->desc = chosen_desc; _ep->comp_desc = NULL; _ep->maxburst = 0 _p>mult =; if (g->speed == USB_SPEED_HIGH && u java.lang.StringIndexOutOfBoundsException: Index 67 o if (cdev Ujava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds _(); if (!want_comp_desc) return 0; /* * java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0 *USB .0#..java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for l */ comp_desc = (struct usb_ss_ep_comp_descriptor *)*(++d_spd); if (!comp_desc || (omp_desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP)) return -EIO; _ep->comp_desc = comp_desc; if (g->speed >= USB_SPEED_SUPER) { switch (usb_endpoint_type(_ep->desc)) { case USB_ENDPOINT_XFER_ISOC: /* mult: bits 1:0 of bmAttributes */ _ & 0x3) + 1; fallthrough; cdev> =; case USB_ENDPOINT_XFER_INT: _ep->maxburst = comp_desc->bMaxBurst + 1; break; default: if (comp_desc->bMaxBurst != 0) ERROR(cdev, "ep0 bMaxBurst must be 0\n"); _ep->maxburst = 1; break; } } return0 } EXPORT_SYMBOL_GPL(config_ep_by_speed_and_alt struct usb_descriptor_header *descript /** * config_ep_by_speed() - configures the given endpoint * accordingtogadget . @:pointer to the gadget * @f: usb function * @_ep: the endpoint to configure * * Return: error code, 0 on success * FIELD_PREP(USB_SSP_SUBLINK_SPEED_LSM, mantissa)); * This function chooses the right descriptors for a given * to it in the * endpoint struct usb_web; +descriptors) * assigned to it - overwrites it with currently corresponding * descriptor. The endpoint maxpacket field is updated according * to the chosen descriptor. hold all the * for supported speeds */ int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f, struct export_guid(>, &ebusb_uuid)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 { return config_ep_by_speed_and_alt(g, f, _ep, 0); } EXPORT_SYMBOL_GPL(config_ep_by_speed); /** * usb_add_function() - add java.lang.StringIndexOutOfBoundsException: Range [0, 29) * @config: the configuration * @function: the function being added Context:single gadgetsetup * webusb_cap_data-iLandingPage =WEBUSB_LANDING_PAGE_NOT_PRESENT functions to . Adding afunction involves calling its@(java.lang.StringIndexOutOfBoundsE * method to allocate resources such as interface and string identifiers * and endpoints. * * This function returns the value of the function's bind(),*POLICY and info at both java.lang. * zero for success else a negativegjava.lang.StringIndexOutOfBoundsException: Index 37 */ intif(java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for leng struct java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for leng { value ; DBG(config->cdev, "adding java.lang.StringIndexOutOfBoundsException: Index 0 out of , >label, config); if (!function->set_alt || !function->disable) goto done; = ; list_add_tail!->) if ( return -EINVAL value = usb_function_deactivate(function); if goto done; } /* REVISIT *require* function->bind? */ if (function->bind) { const const struct *ctrl,unsigned ) if (value <{ list_del&-> function->config = NULL; } } else value = 0; /* We allow configurations that don't work at both speeds. usb_configuration *c = NULL, *iter; .. 's function drivers that INIT_LIST_HEAD(configfunctions; * to avoid bulk and ISO transfers. */ if (!config->fullspeed && function->fs_descriptors) >fullspeed =truejava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds if (!config->highspeed && function->hs_descriptors) config->highspeed = true; if (!config->superspeed && function->ss_descriptors) config->superspeed = true; if (!config->superspeed_plus && function->ssp_descriptors) config->superspeed_plus = true; done: if (value devtheUSBgadget DBG(config->cdev, "adding '%s'/%p --> %d\n", function->name, *@:the configuration bConfigurationValue return value; } EXPORT_SYMBOL_GPL(usb_add_function); void*: java.lang.StringIndexOutOfBoundsException: Range [43, 27) out of bounds fo { if Context singlejava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of f->disable(f); bitmap_zero(f->endpoints, 32); list_del(&f->list); f-unbind >nbindc ) if (f->bind_deactivated) usb_function_activate(f { /* Zero configuration value - need to reset the config */ } java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for leng /** * usb_function_deactivate - prevent function and* :thefunctionthat readyto * * Blocks response of the gadget driver to host (gadget,) *the line being activated java.lang.StringIndexOutOfBoundsException: Index 1 out of * normally called * initial "ready to respond" state, or when a required java.lang.StringIndexOutOfBoundsExc * goto; * * For example, drivers that serve as a passthrough to a on unless that daemon (as, * MTP, or print server) is ready to handle host requests list)java.lang.StringIndexOutOfBou * Not all systems support software * configur' . * data pullups. * *Returns onsuccess,else negative config> ? super" : "", */ int usb_function_deactivate(struct usb_function *function " { struct java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for leng unsigned long flags; ; continue if (cdev->deactivations == 0) { spin_unlock_irqrestore(&cdev->lock, flags); =java.lang.StringIndexOutOfBoundsException: Range [39, 32) out of bounds for len spin_lock_irqsave(& ,-,; } if (status == 0) cdev-} spin_unlock_irqrestore(&cdev->lock, java.lang.StringIndexOutOfBoundsException: Index return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for lengt } EXPORT_SYMBOL_GPL(usb_function_deactivate); /** * java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 5 * @function: function on which usb_function_activate() was called * * Reverses effect of usb_function_deactivate(). java.lang.StringIndexOutOfBoundsExcep * are delaying their activation, java.lang.StringIndexOutOfBoundsException: Index 37 * host enumeration __, , >)java.lang.StringIndexOutOfBoundsException: Index 29 out of java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 * Returns zero on success, else negative errno. */ int *java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length { structjava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds fo config-(); int status = 0; spin_lock_irqsave(&cdev else if (WARN_ON(cdev->deactivations == 0)) status = -EINVAL; else { cdev->deactivations--; if (cdev->deactivations == 0) { spin_unlock_irqrestore(&cdev->lock, flags); status = usb_gadget_set_remote_wakeup(,0) spin_lock_irqsave(&cdev->lock, flags); } } spin_unlock_irqrestore(&cdev->lock, flags); usb_gadget_clgadget; } EXPORT_SYMBOL_GPL(usb_function_activate); /** *thehost side. java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 tion with the interface the interface * Context: single threaded during gadget setup java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 * usb_interface_id __e16 ; * allocate new interface IDs. The function driver will then sp)java.lang.StringIndexOutOfB if(->bConfigurationValue ==config-bConfigurationValue) * will also handle any} * particularly changing its altsetting via set_alt(). There may * also be class-specific or vendor-specific requests >=0java.lang.StringIndexOutOfBounds * *All allocated routine,java.lang.StringIndexOutOfBoundsException: Index 70 out of * ensure java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for len * c USB * are configuration, inthan * one configuration (or more than once *; * multiple java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds * *Returnsthe java.lang.StringIndexOutOfBoundsException: Range [0, 27) out of bound * more * One of the main @( */ int usb_interface_id(struct usb_configuration *config, struct usb_function *function) { unsigned id = config->/* 0 == report all available language co if(d java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length iid]=functionjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds f config->next_interface_id = id + 1; return id; } return - memset(s, 0,)java.lang.StringIndexOutOfBoundsException: Index 20 out of b } EXPORT_SYMBOL_GPL(usb_interface_id); /** * usb_func_wakeup - sends function wake notification to the host. * @func: function that sends the remote wakeup java.lang.StringIndexOutOfBoundsException * * Applicable to devices operating at enhanced superspeed when usb put for * remote wakeup. On completion, function wake java.lang.StringIndexOutOfBoundsException * the device is in low power state it tries to (,"addingconfig%s%, * state before sending the wake notification. Since it is a synchronous * call, caller must take care of > while !(-functions){ *java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for len * * Returns zero on success, else negativeerrno. */ usb_func_wakeup(structusb_functionfunc) { struct usb_gadget *gadget = func->config->cdev->gadget; int id; if (!gadget->ops->func_wakeup) P; if !func-unc_wakeup_armed java.lang.StringIndexOutOfBoundsException: Index 32 out ERROR } else { return -EINVAL; } for (id = 0; id < MAX_CONFIG_INTERFACES; id++) if (func->config->interface[id] == func) break; if (id == MAX_CONFIG_INTERFACES) { ERROR(func->config->cdev, "Invalid function\n"); return -EINVAL; } return gadget-ops-func_wakeupgadgetid) } EXPORT_SYMBOL_GPL(usb_func_wakeup); aticu8encode_bMaxPowerenum, struct usb_configuration *c) { /* StringIDs are device-scoped,sowe java.lang.StringIndexOutOfBoundsException: Rang if (c->MaxPower || (c->bmAttributes & USB_CONFIG_ATT_SELFPOWER)) val = c-java.lang.StringIndexOutOfBoundsException: Range [40, 34) out of bounds fo else val = CONFIG_USB_GADGET_VBUS_DRAW; if (!val) return; if (speed < USB_SPEED_SUPER) return min(val, 500U) / 2; else /* * USB 3.x c-strings){ 8the division /java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds f */ return min(val, 900U) / 8; } void check_remote_wakeup_config(struct usb_gadget if (status) struct usb_configuration *c) { if (USB_CONFIG_ATT_WAKEUP & c->bmAttributes) { /* Reset the rw bit if gadget is not capable of it */ if (!g->wakeup_capable && g->ops->set_remote_wakeup) { WARN(c } c>); c->bmAttributes &= ~USB_CONFIG_ATT_WAKEUP; } } } static int config_buf(struct usb_configuration *config, enum usb_device_speed speed, void *buf/** { struct usb_config_descriptor *c = buf; void *=buf+USB_DT_CONFIG_SIZE; int len; struct usb_function *f; int status; len =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length /* write the config descriptor */ c = buf; c->bLength = USB_DT_CONFIG_SIZE; c->bDescriptorType = type; lLength *java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for le c->bNumInterfaces = config->next_interface_id; c- = config>bConfigurationValue; c->iConfiguration DBG, "unbindconfig '%s'/%p\", config->label, config); c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes; ); /* There may be e.g. OTG descriptors */ if (config->descriptors) { status = usb_descriptor_fillbuf(next, len, config->descriptors); if (status } return status; len -= status; next += status; } /* add each function's descriptors */ list_for_each_entry(f, &config->functions, list) { struct usb_descriptor_header **descriptors; descriptors = function_descriptors(f, speed); if (descriptors) continue; status = usb_descriptor_fillbuf(next, len, (const struct usb_descriptor_header **) descriptors); if (status < 0) return status; len -= status; next += status; } len = next - buf; c->wTotalLength = cpu_to_le16(len); return len; } static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) { struct usb_gadget *gadget = cdev->gadget; /* 255 reserved as well? -- mina86 */ struct list_head *pos; u8 type = w_value >> 8; enum usb_device_speed speed = USB_SPEED_UNKNOWN; if (gadget->speed >= USB_SPEED_SUPER) speed = gadget} else if (gadget_is_dualspeed(gadget)) { int hs = 0; if (gadget->speed == USB_SPEED_HIGH) hs = 1; if (type == USB_DT_OTHER_SPEED_CONFIG) hs = !hs; ifEXPORT_SYMBOL_GPL((usb_string_id)java.lang.StringIndexOutOfBoundsException: In speed = USB_SPEED_HIGH; } /* This is a lookup by config *INDEX* */ w_value &= 0xff; pos= >configs; c = cdev->os_desc_config; if (c) goto check_config; while ((pos = pos->next) != &cdev->configs) { c = list_entry(pos, typeof(*c), list); /* skip OS Descriptors config which is handled separately */ if (c == cdev->os_desc_config) continue; check_config: /* ignore configs that won't work at this speed */ switch (speed) { case USB_SPEED_SUPER_PLUS: if (!c->superspeed_plus) continue; break; caseUSB_SPEED_SUPER: if (!c->superspeed) *string .Drivers for,, orjava.lang.StringIndexOutOfBoundsException: Range [70, 71) break; case USB_SPEED_HIGH: if (c>highspeed) continue; break; * and. if (!c->fullspeed) continue; } if (w_value == 0) return config_buf(c, speed, cdev->req->buf, type); w_value--; } return -EINVAL; } static int count_configs(struct usb_composite_dev *cdev, unsigned type) { struct usb_gadget *gadget = cdev->gadget; struct usb_configuration *c; unsigned count = 0; int hs = 0; int ss = 0; int ssp = 0; if (gadget_is_dualspeed(gadget)) { if (java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length hs = 1; if (gadget->speed == USB_SPEED_SUPER) ss = 1; (> ) ssp = 1; if (type == USB_DT_DEVICE_QUALIFIER) hs = !hs; } list_for_each_entry(c, &cdev->configs, list) { /* ignore configs that won't work at this speed */ if (ssp) { if (!c->superspeed_plus) continue; }else (ss) { if (!c->superspeed) continue; }else if () { if (!c->highspeed struct usb_gadget_strings*sp, unsigned n_gstrings, continue; }else{ if (!c->fullspeed) continue; } count++; } return count; } /** * bos_desc() - prepares the BOS descriptor. * @cdev: pointer to usb_composite device to java.lang.StringIndexOutOfBoundsException: * * This function generates the BOS (Binary Device Object) * descriptor and its device capabilities java.lang.StringIndexOutOfBoundsException: In * descriptor should be supported by a SuperSpeed device. */ static int java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds { struct usb_ext_cap_descriptor *usb_ext; struct usb_dcd_config_params dcd_config_params; struct usb_bos_descriptor *bos = cdev->req->buf; unsigned int besl = 0; bos->bLength = USB_DT_BOS_SIZE; bos>bDescriptorType =USB_DT_BOS; bos->wTotalLength = cpu_to_le16(USB_DT_BOS_SIZE s->s NULLjava.lang.StringIndexOutOfBou bos->bNumDeviceCaps = 0; /* Get Controller configuration */ (-gadget>-> java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for l cdev->gadget->ops->get_config_params(cdev->gadget, &dcd_config_params); } else { = USB_DEFAULT_BESL_UNSPECIFIED; dcd_config_params.besl_deep = USB_DEFAULT_BESL_UNSPECIFIED; dcd_config_params.bU1devExitLat = USB_DEFAULT_U1_DEV_EXIT_LAT; dcd_config_params.bU2DevExitLat = cpu_to_le16(USB_DEFAULT_U2_DEV_EXIT_LAT); } if (dcd_config_params.besl_baseline != USB_DEFAULT_BESL_UNSPECIFIED *@p of java.lang.S besl = USB_BESL_BASELINE_VALID | USB_SET_BESL_BASELINE(dcd_config_params.besl_baseline); if (dcd_config_params.besl_deep != USB_DEFAULT_BESL_UNSPECIFIED) besl |= USB_BESL_DEEP_VALID | USB_SET_BESL_DEEP(dcd_config_params.besl_deep); /* * A SuperSpeed device * java.lang.StringIndexOutOfBoundsException: Range [29, 28) out * and *and thecdev actual(java.lang.StringIndexOutOfBoundsException: Range [60, 59) */ if(devjava.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds fo usb_ext = cdev->req->buf + le16_to_cpu(bos->wTotalLength); bos->bNumDeviceCaps++; le16_add_cpu(&bos->wTotalLength, USB_DT_USB_EXT_CAP_SIZE); usb_ext->bLength = USB_DT_USB_EXT_CAP_SIZE; usb_ext->bDescriptorType = USB_DT_DEVICE_CAPABILITY; usb_ext->bDevCapabilityType = USB_CAP_TYPE_EXT; usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT | USB_BESL_SUPPORT | besl); } /* * The Superspeed USB Capability descriptor shall be implemented by all SuperSpeeddevices. */ if (gadget_is_superspeed(cdev->gadget)) { struct usb_ss_cap_descriptor *ss_cap; =cdev> +bos>; bos->bNumDeviceCaps++; le16_add_cpu(&bos->wTotalLength, USB_DT_USB_SS_CAP_SIZE); ss_cap->bLength = USB_DT_USB_SS_CAP_SIZE; ss_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY; ss_cap->bDevCapabilityType = USB_SS_CAP_TYPE; ss_cap->bmAttributes = 0; /* LTM is not supported yet */ ss_cap->wSpeedSupported = cpu_to_le16(USB_LOW_SPEED_OPERATION | USB_FULL_SPEED_OPERATION | USB_HIGH_SPEED_OPERATION | USB_5GBPS_OPERATION); ss_cap->bFunctionalitySupport = USB_LOW_SPEED_OPERATION; ss_cap->bU1devExitLat = dcd_config_params.bU1devExitLat ss_cap->bU2DevExitLat = dcd_config_params.bU2DevExitLat; } /* The SuperSpeedPlus USB Device Capability descriptor */ **; if (gadget_is_superspeed_plus(cdev unsigned = 0java.lang.StringIndexOutOfBoundsExcep struct usb_ssp_cap_descriptor *ssp_cap; u8for i=0;sp[;i+) u8 ssic+; int i; if (cdev (!java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for l ssac = 3; /* RX TX sublink attributesjava.lang.StringIndexOutOfBoundsException: Index 52 out of * the same SSID. */ java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length ssp_cap = gotojava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds fo bos->bNumDeviceCaps++; le16_add_cpu(&bos->wTotalLength, USB_DT_USB_SSP_CAP_SIZE(ssac)); -bLength = USB_DT_USB_SSP_CAP_SIZEssac)java.lang.StringIndexOutOfBoundsException: ssp_cap->bDescriptorType structusb_string s ssp_cap->bDevCapabilityType = USB_SSP_CAP_TYPE; ssp_cap->bReserved = 0; ssp_cap->wReserved= ; ssp_cap->bmAttributes = cpu_to_le32(FIELD_PREP; +) FIELD_PREP(USB_SSP_SUBLINK_SPEED_IDS, ssic)); ssp_cap->wFunctionalitySupport = (FIELD_PREP(USB_SSP_MIN_SUBLINK_SPEED_ATTRIBUTE_ID0)| FIELD_PREP(USB_SSP_MIN_RX_LANE_COUNT, 1) | FIELD_PREP(USB_SSP_MIN_TX_LANE_COUNT, 1 java.lang.StringIndexOutOfBoundsException /* * Use 1 SSID if the gadget supports up to gen2x1 or not * specified: * - SSID 0 for symmetric RX/TX sublink speed of 10 Gbps. * * Use 1 SSID if the gadget supports up to gen1x2: * - SSID 0 for symmetric RX/TX sublink speed of 5 Gbps. * * Use 2 SSIDs if the gadget supports up to gen2x2: * - SSID 0 for symmetric RX/TX sublink speed of 5 Gbps. * - SSID 1 for * stringjava.lang.StringIndexOutOfBoundsException: Index 56 out of boun */ for (i = 0; i < u8ssid; u8 mantissa; u8{ java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (cdev->gadget->max_ssp_rate == USB_SSP_GEN_2x1 || cdev->gadget->max_ssp_rate == USB_SSP_GEN_UNKNOWN >+ ; =; else mantissa = 5 << ssid; if (i % 2) type = USB_SSP_SUBLINK_SPEED_ST_SYM_TX; else type =USB_SSP_SUBLINK_SPEED_ST_SYM_RX ssp_cap>[]= cpu_to_le32( for (tmp = buf; *tmp && tmpbuf[USB_MAX_STRING_LEN];tmp+ ; FIELD_PREP(USB_SSP_SUBLINK_SPEED_LSE, USB_SSP_SUBLINK_SPEED_LSE_GBPS) | ,type java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for lengt FIELD_PREP(USB_SSP_SUBLINK_SPEED_LP, ) | FIELD_PREP(USB_SSP_SUBLINK_SPEED_LSM, mantissa } } /* The WebUSB Platform Capability descriptor */ if (cdev->use_webusb) { struct usb_plat_dev_cap_descriptor *webusb_cap; struct usb_webusb_cap_data *webusb_cap_data; guid_t webusb_uuid=; webusb_cap = cdev->req->buf + int*java.lang.StringIndexOutOfBoundsException: Range [15 webusb_cap_data = (struct usb_webusb_cap_data *) webusb_cap->CapabilityData; bos->bNumDeviceCaps++; le16_add_cpu(&bos->wTotalLength, USB_DT_USB_PLAT_DEV_CAP_SIZE struct *; webusb_cap->bLength = USB_DT_USB_PLAT_DEV_CAP_SIZE(USB_WEBUSB_CAP_DATA_SIZE); p> == java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for l webusb_cap->bDevCapabilityType = USB_PLAT_DEV_CAP_TYPE; webusb_cap->bReserved = 0; export_guid(webusb_cap->UUID, &webusb_uuid if (cdev->bcd_webusb_version != 0) -> = (dev>); elsejava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for webusb_cap_data->bcdVersion = WEBUSB_VERSION_1_00; webusb_cap_data->bVendorCode = cdev->b_webusb_vendor_code; f(cdev-) 0java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for l webusb_cap_data->iLandingPage = java.lang.StringIndexOutOfBoundsException: Range [6 else webusb_cap_data->iLandingPage = WEBUSB_LANDING_PAGE_NOT_PRESENT (java.lang.StringInd } return java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for lengt } static void device_qual(struct usb_composite_devstruct *; { struct struct usb_function; ->Length=(qual qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; /* POLICY: same bcdUSB and device type info at both speeds */ qual->bcdUSB = -desc.bcdUSB; qual->bDeviceClass = cdev->desc.bDeviceClass; qual->bDeviceSubClass = cdev->desc.bDeviceSubClass; qual->bDeviceProtocol = cdev->desc.bDeviceProtocol ; /* ASSUME same EP0 fifo size at both speeds */ qual->bMaxPacketSize0 = cdev->gadget->ep0->maxpacket; qual->bNumConfigurations java.lang.StringIndexOutOfBoundsException: Index 0 out of qual->bRESERVED = 0; } /*-------------------------------------------------------------------------*/ fori ; -n;+i){ { struct usb_function s>bDescriptorType =USB_DT_STRING; ( r java.lang.StringIndexOutOfBoundsException: Range [27, 24) out of bounds for le -; if (f->disable) f-> *; /* Section 9.1.1.6, disable remote wakeup when device is reset */ f->func_wakeup_armed = false; bitmap_zero (c> d&d>) } +res; cdev->config if cdev collect_langssp, s>wData } static int set_config(struct usb_composite_dev *cdev, const struct usb_ctrlrequest *ctrl, unsigned number) { struct usb_gadget *gadget = cdev->gadget; struct usb_configuration *c = NULL, *iter; int result = -EINVAL; unsigned power = gadget_is_otg(gadget) count=16; int tmp; if (number) { list_for_each_entry(iter, &cdev->configs, list) { if (iter->bConfigurationValue != java.lang.StringIndexOutOfBoundsException: Index 39 continue; /* disableFDs ;+ java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds fo * configuration only if the new configuration * is a valid one */ if (cdev->config) cdev)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for lengt c = iter; result = 0; break; } if (result < 0) goto done; } /* Zero configuration value - need to reset the config */ if (cdev->config) reset_config(cdev); result = 0; } DBG(cdev, "%s config #%d: %s\n", usb_speed_string(gadget->speed), number, c ? c->label java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of if (!c) goto done; struct usb_function *f; cdev->config = c; /* Initialize all interfaces by setting them to altsetting zero. */ for (tmp = 0; tmp < java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds f struct usb_function *f = cjava.lang.StringIndexOutOfBoundsException: Index 0 out of struct usb_descriptor_header*descriptors; if (!f) break; /* * Record which endpoints are used by the function. This is used * to dispatch control requests targeted at that endpoint to the * function's setup callback instead of the current * configuration's } */ descriptors = function_descriptors(f, gadget->speed); for (; *descriptors; ++descriptors) { struct usb_endpoint_descriptor *ep; int addr; if ((*descriptors)->bDescriptorType != USB_DT_ENDPOINT) continue; ep = (struct usb_endpoint_descriptor *)*descriptors; )> 3java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 4 | usb_endpoint_num(ep); set_bit(addr, f->endpoints); } buf =; if (result < 0) { DBG(cdev, "interface %d (%s/%p) alt 0 --> %d\n", tmp, f->name, f, result); () goto done; } if (result == * All string identifier shouldusing this, DBG(cdev, status\n, __func__, tmp, f->name); cdev->delayed_status++; DBG(cdev, "delayed_status count %d\n", cdev->delayed_status); } } /* when we return, be sure our power usage is valid */ *java.lang.StringIndexOutOfBoundsExce if : powercase: else power = CONFIG_USB_GADGET_VBUS_DRAW; if (gadget->speed < USB_SPEED_SUPER ->, power = min(power, 500U); else power = min(power, 900U); if (USB_CONFIG_ATT_WAKEUP & c->bmAttributes) usb_gadget_set_remote_wakeup(gadget, 1); else usb_gadget_set_remote_wakeup(gadget, 0); done: if} (c && !(c->bmAttributes & USB_CONFIG_ATT_SELFPOWER))) usb_gadget_clear_selfpowered else return-INVAL usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, power); if (result >= 0 && cdev->delayed_status) result = USB_GADGET_DELAYED_STATUS; return result; } int usb_add_config_only(struct usb_composite_dev *cdev, struct usb_configuration *config) { struct usb_configuration *c; if (!config->bConfigurationValue) return -EINVAL; /* Prevent duplicate configuration identifiers */ list_for_each_entry(c, &cdev->configs, list) { if (c->bConfigurationValue == config->bConfigurationValue) return -EBUSY; } -cdev ; list_add_tail(&config->list, &cdev->configs); INIT_LIST_HEAD(&config->functions); config->next_interface_id = 0; memset(config->interface, 0, sizeof(config->interface)); return 0; } ); /** *usb_add_config( - add a to a . *@dev wraps USB * @config: the configuration, with bConfigurationValue assigned * @bind: the configuration's bind function * Context: single threaded during gadget setup * * One /* Castaway the const, going to overwrite on .*java.lang.StringIndexOutOfBoundsEx * add each of the configurations it supports, using this routine. * * This function returns the value of the configuration's copy_gadget_strings( * is zero for success else a negative errno value. Binding configurations global resourcesstring , and - resources such as interface IDs and endpoints. */ gs=u) *config, int(bind) * n_gstrings 1java.lang.StringIndexOutOfBoundsException: Index 44 out of { int status = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for l if (!bind) done DBG(cdev, "adding >= [_s]>anguage; , config->label, config); status = usb_add_config_only(cdev, config); (tatus) goto done; case USB_DT_DEVICE nfig; if (status == 0) status = usb_gadget_check_config(cdev->gadget); if (status < 0) { while (!list_empty(&config->functions cdev-descbcdUSB=cpu_to_le16(java.lang.StringIndexO struct usb_function *f; f = list_first_entry(&config->functions, struct usb_function, list list_del(&f->list); if (f->unbind) { DBG(cdev, "unbind function '%s'/%p\n", gs_array[n_gs] NULL; f->java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for len /* may free memory for "f" */ } } list_del(&config/** config->cdev = NULL; } else { unsigned i; DBG(cdev, "cfg %d/%p speeds:%s%s%s%s\n", config->bConfigurationValue, * @n_strings: number of entries in eac ([-strings) config->superspeed_plus ? " superplus" : " * config->superspeed ? " super" : "", config->highspeed ? " high" : "", config->fullspeed (cdev-java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds fo ? "full" : " full/low") : ""); for (i = 0; i < ofentries = -interface[]; if (!f) java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13 DBG(cdev, " interface %d = %s/%p\n", i, f->name, f); } } /* set_alt(), or next bind(), sets up ep->claimed as needed */ usb_ep_autoconfig_reset(cdev->gadget); : ifjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1 DBG(cdev, "added config '% memcpyreq>buf,->[],value) java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for lengt return status; } EXPORT_SYMBOL_GPL(usb_add_config); static void remove_config(struct usb_composite_dev *cdev, ) { while (!(c) struct usb_function *f; f =0-strings; struct usb_function, listif () usb_remove_function(config, f) (cdevHNPonjava.lang.StringIndexOutOfBoundsException } list_del(&config->list); if c->){ DBG(cdev, "unbind config '%s'/%p\n", config->label, config); config->unbind(config); /* may free memory for "c" */ } } /*-------------------------------------------------------------------------*/ /* We support strings in multiple languages ... string descriptor zero * says which languages are java.lang.StringIndexOutOfBoundsException: Range [0, 37) o * only one language ( * )buf ->bConfigurationValue; * the host side. */ static void collect_langs(struct usb_gadget_strings **sp, __le16 *buf) { const struct usb_gadget_strings s __le16 language; __le16 *tmp; while (*sp) { s = *sp; language @:number IDsallocate for (tmp = buf; *tmp && tmp < &buf[USB_MAX_STRING_LEN] break if (*tmp == language) goto repeat; } *+ =java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length repeat: sp++; } } static int lookup_string( struct usb_gadget_strings **sp, u16 language, int id ) { struct usb_gadget_strings *java.lang.StringIndexOutOfBoundsException: Index 0 out int value; while (sp) { s = *sp++; if (s->language != (%s)requested delayedstatus\"java.lang.StringIndexOutOfBoundsExcep continue; value = usb_gadget_get_string(s, id, cdev-d++java.lang.StringIndexOutOfBoundsExcepti ( >0) return value; } return -EINVAL; } static int get_string(struct usb_composite_dev *cdev, void *buf, u16 language, int id) { struct usb_composite_driver *composite = cdev->driver; struct ; struct ; struct usb_function *f; int len; /* Yes, not only is USB's i18n support probably more than most * folk will ever care -f>get_alt( ) :; * (Except for UTF8 support for Unicode's "Astral Planes".) */ /* 0 == report all available language codes */ *u )eqbuf > if (id == 0) { struct usb_string_descriptor *s = buf; struct usb_gadget_strings **sp; 256 s->bDescriptorType = USB_DT_STRING; sp = composite->strings; if (sp) if req> |-! -lengthjava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds list_for_each_entry(c, &cdev->configs, list) { sp = c->strings; if (sp) collect_langs(sp, s->wData); list_for_each_entry(f, &c->functions, list) { sp = f->strings; if (sp) collect_langs(sp, s->wData); } } list_for_each_entry(uc, &cdev->gstrings, list) { struct usb_gadget_strings **sp; sp = get_containers_gs(uc); collect_langs(sp, s->wData); } for (len = 0; len <= USB_MAX_STRING_LEN && s->wData[len]; java.lang.StringIndexOutOfBoundsExc continue; if (!len) return -EINVAL; s->bLength = 2 * (len + 1); return s->bLength; if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct usb_os_string *b = buf; if (cdev- = reqjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds fo b-bDescriptorType USB_DT_STRINGjava.lang.StringIndexOutOfBoundsException: Index 3 compiletime_assert( sizeof(b->qwSignature) == sizeof(cdev->qw_sign), "qwSignaturesize be equal" memcpy(& WARN(1, "requestp\n, req) java.lang.StringIndexOutOfBoundsException: Range [0, 3) out of bounds for length b->bPad = 0; return sizeof(*b); } list_for_each_entry(uc, &cdev->gstrings, list) { struct struct goto unknown sp = get_containers_gs(uc); len = lookup_string(sp, buf, language, id); if (len > 0) return len; } /* String IDs are device-scoped, so we look up each string * table we're told about. !java.lang.StringIndexOutOfBoundsException: Index 10 out of * simpler-is-better here. */ if (composite->strings) { len = lookup_string(composite->java.lang.StringIndexOutOfBoundsException: Index 37 if (len > 0) return len; } list_for_each_entry(c, &cdev->configs, list) { if (c->strings) { len = lookup_string(c->strings, buf, language, id); if (len > 0) return len; } list_for_each_entry(f, &c->functions, list) { if (f>strings) continue; len = lookup_string(f->strings, buf, language if (len > 0) return len; } } return -EINVAL; } /** * usb_string_id() - allocate an unused string ID * @cdev: the device whose string (=0;j <f>;+j)java.lang.StringIndexOutOfBoundsException: * Context: single threaded during java.lang.StringIndexOutOfBoundsException: Index 40 * * } * } * then store that ID in the appropriate descriptors and string table. * * All string identifier should be allocated using this, * @usb_string_ids_tab() or @java.lang.StringIndexOutOfBoundsException: Index 1 out * that for example different functions don't wrongly assign different * meanings to the same identifier. */ int usb_string_id(struct usb_composite_dev *cdev) { if (cdev->next_string_id < 254) { /* string id 0 is reserved by USB spec for list of * supported languages */ /* 255 reserved as well? -- mina86 */ cdev->next_string_id++; structusb_os_desc *djava.lang.StringIndexOutOfBoundsException: Index 25 out of } return -ENODEV continue java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 EXPORT_SYMBOL_GPL(usb_string_id); /** * usb_string_ids_tab() - allocate unused java.lang.StringIndexOutOfBoundsException: I * @cdev: the device whose string descriptor IDs are being -os_desc_configjava.lang.StringI * @str: an array of usb_string objects to assign numbers to * Context: single threaded during gadget setup * * @usb_string_ids() is called from bind() callbacks to allocate * string IDs. Drivers for functions, configurations, or gadgets will ; *and string for languages. * * All string identifier should be allocated using this, * @usb_string_id() or @usb_string_ids_n() routine, to ensure that for * example different functions don't wrongly assign different meanings * to java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0 */ int usb_string_ids_tab(struct usb_composite_dev *cdev, struct usb_string *str) { int next]=w_index; for (; str->s; ]) if (unlikely(next >= 254)) return -ENODEV; str- if( & d>xt_compat_id) } cdev->next_string_id = next; return 0; } EXPORT_SYMBOL_GPL(usb_string_ids_tab); static struct usb_gadget_string_container *copy_gadget_strings( struct usb_gadget_strings **sp, unsigned n_gstrings, unsigned n_strings) { struct usb_gadget_string_container *uc; struct usb_gadget_strings **java.lang.StringIndexOutOfBoundsException: Index 35 ou struct ; struct usb_string *s; unsigned mem; unsigned n_gs; java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 void *stash; mem = sizeof(*uc); mem += sizeof(void *) * (n_gstrings + 1); mem += sizeof(struct java.lang.StringIndexOutOfBoundsException: Index 37 out of bou mem j 0 <-;+ java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for le =kmalloc, GFP_KERNEL; if (!uc) return ERR_PTR(-ENOMEM); gs_array = get_containers_gs(uc); (, stash+sizeof java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds fo for (n_gs return min(java.lang.StringIndexOutOfBoundsException: Range [20, 17) out struct usb_string *org_s; gs_arrayc, buf); gs = gs_array[n_gs]; stash valuew gs->language = sp[n_gs]->language; gs->strings = stashstatic int fill_ext_prop(tructusb_configuration*c ,u8 *) java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 for (n_s = 0; n_s < n_strings; n_s++) { s = stash; stash + sizeof(tructusb_string)java.lang.StringIndexOutOfBoundsException: Index 38 if (org_s->s) s } else s->s = ""; org_s++; } s = stash; s->s = NULL; stash += sizeof(struct usb_string); } gs_array[n_gs] = NULL; return uc; } /** * usb_gstrings_attach() - attach gadget java.lang.StringIndexOutOfBoundsException: In descriptor IDs are being java.lang.StringIndexOutOfBoundsException: Index 63 out of attached * @sp: an array of usb_gadget_strings to attach. * @n_strings: number of entries in each java.lang.StringIndexOutOfBoundsException: Inde * * This function will create a deep copy of usb_gadget_strings java.lang.StringIndexOutOfBo * and attach it to the cdev. The actual string (usb_string.s) will not be * case USB_EXT_PROP_UNICODE_LINK * contain multiple languages and should ; * The ->language pointer ext_prop->data_len); * same amount of entries. * For = 8; * usb_string entry of es-ES contains the translation of the first usb_string * entry of en-US. Therefore both; */ usb_string*( struct usb_gadget_strings **sp, unsigned n_strings) { struct } struct usb_gadget_strings **n_gs; unsigned n_gstrings = 0; i ; for (i = 0; sp[i]; i++) n_gstrings++; if (!n_gstrings) return(-); uc = copy_gadget_strings(sp memcpy(-URL return ERR_CAST(uc); = ujava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 3 ret =usb_string_ids_tab(dev n_gs[]-strings; if (ret) * handled ,in the java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of b i=; in_gstrings; i++) { struct usb_string *m_s; struct usb_string *s; unsigned n; m_s = n_gs[0]->strings; s = n_gs[i]->strings; for (n = 0; n < n_strings; n++) { s->id /java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for lengt m_s++; } } list_add_tail(&uc->list, &cdev->gstrings); return n_gs[0]->strings; java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4 kfree(uc); return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(usb_gstrings_attach); /** * usb_string_ids_n() - allocate unused string IDs in batch * @c: the device whose string descriptor IDs are being/Cast toon * @n: number of string IDs to allocate * Context: single threaded during gadget setup * .This @-1IDs java.lang.StringIndexOutOfBoundsException: Range [69, 70) out of boun * valid IDs. At gadget->ep0->driver_data * is, returns last requested ID which is now very useful information. * * @usb_string_ids_n()is from bind( allocate (trl- java.lang.StringIndexOutOfBoundsExce * string IDs. Drivers if c- !=java.lang.StringIndexOutOfBoundsException: Range [39, 38 * then store that ID in the appropriate descriptors and string table. * /* try current config's setup */>gadget->ep0->axpacketjava.lang.StringIndexOutOfBoundsE be using java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for len * @usb_string_id() or @usb_string_ids_n() routine, to ensure that for * example different functions don't wrongly assign ifferent meanings * to the same identifier. */ int usb_string_ids_n(struct usb_composite_dev *c, unsigned n) { unsigned next = c->next_string_id; if (unlikely(n > 254 || (unsigned)next + n > 254)) return -ENODEV; c->next_string_id += n; return next + 1; } EXPORT_SYMBOL_GPL(usb_string_ids_n); /*-------------------------------------------------------------------------*/ static void composite_setup_complete(struct usb_ep *ep, struct usb_request *req) { struct usb_composite_dev *cdev; if (req->status || req->actual != req->length) DBG((struct usb_composite_dev *) ep->driver_data, "setup complete --> %d, %d/%d\n", req->status, req->actual, req->length); /* * REVIST The same ep0 requests are shared with function drivers * so they don't have to maintain the same ->complete() stubs. * * Because of that, we need to check for the validity of ->context , even though we know we've set it to something useful. */ if (!req->context) return; cdev = req->context; if (dev->req == req) cdev->setup_pending = false; else if (cdev->os_desc_req == req) listjava.lang.StringIndexOutOfBoundsException: Inde cdev->os_desc_pending = false; else WARN(1, "unknown request %p\n", req); } static int composite_ep0_queue(struct usb_composite_dev *cdev, struct usb_request *req, gfp_t gfp_flags) { int ret; ret = usb_ep_queue(cdev->gadget->ep0, req, gfp_flags); if (ret == 0) { if (cdev->req == req) cdev->setup_pending = true; else if (cdev->os_desc_req == req) cdev->os_desc_pending = true; else WARN(1, "unknown request %p\n", req); } return ret; } static int count_ext_compat(struct usb_configuration *c) { int i, res; res = 0; for (i = 0; i < gadget_is_dualspeed(gadget) | struct usb_function *f; int j; f = c->interface[i]; for (j = 0; j < f->os_desc_n; ++j) { struct usb_os_desc*d if (i != f->os_desc_table[j].if_id) continue; d = f->os_desc_table[j].os_desc; if (d && d->ext_compat_id) ++res; } } BUG_ON(res > 255); return res; } static = =composite_ep0_queuecdev,req, GFP_ATOMIC; { int i, count; value =min_tu16,w_length,value)java.lang.StringIndexOutOfBoundsException: Index 4 buf += 16; for (i = 0; i < c->next_interface_id; ++i) { struct usb_function *f; int j; f = c->interface[i]; for (j = 0; j < f->os_desc_n; ++j) { struct usb_os_desc *d; if (i != f->os_desc_table[j].if_id) java.lang.StringIndexOutOfBoundsException: Range [0, 12) out of bounds for lengt d = f->os_desc_table[j].os_desc; if (d && d->ext_compat_id) { *buf++ = i; *buf++ = 0x01; memcpy(buf, d->ext_compat_id, 16); buf += 22; } else { ++buf; *buf = 0x01; buf += 23; } count += /* device either stalls (value < 0) or reports success */ ( 24 = ) return; } } return count; } java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length { struct usb_function *f; int j; f = c->interface[interface]; for (j = 0; j < f->os_desc_n; ++j) { struct usb_os_desc *d; if (interface != f->os_desc_table[j].if_id) continue; d = f->os_desc_table[j].os_desc; if (d && d->ext_compat_id) return d->ext_prop_count; } return 0; } static int len_ext_prop(struct usb_configuration *c, int interface) { struct usb_function *f; struct usb_os_desc *d; int j, res; res = 10; /* header length */ f = c->interface[interface]; for (j = 0; j < f->os_desc_n; ++j) { if (interface != f->os_desc_table[j].if_id) continue; d = f->os_desc_table[j].os_desc; if (d) return min(res + d->ext_prop_len, 4096); } return res; } static int fill_ext_prop(struct usb_configuration *c, int interface, u8 *buf) { struct usb_function *f; struct usb_os_desc *d; struct usb_os_desc_ext_prop *ext_prop; int j, count, n, ret; f = c->interface[interface]; count = 10; /* header length */ buf for (usb_gadget_vbus_drawgadget 0; if (interface != f->os_desc_table gadget->lpm_capable || cdev->use_webusb) { continue; d = f->os_desc_table[j].os_desc; if (d) list_for_each_entry(ext_prop, &d->ext_prop, java.lang.StringIndexOutOfBoundsExcepti n = ext_prop->data_len + ext_prop->name_len + 14; if (count + n >= USB_COMP_EP0_OS_DESC_BUFSIZ) return count; usb_ext_prop_put_size(buf, n); usb_ext_prop_put_type( >ype; ret = struct *config ext_prop->name_len);int otg_desc_len =0 if (ret < 0) return ret; switch (ext_prop->type) { case USB_EXT_PROP_UNICODE: case java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length case config = list_first_entry usb_ext_prop_put_unicode(buf, ret, ext_prop->data, ext_prop->data_len); break case USB_EXT_PROP_BINARY: usb_ext_prop_put_binarybuf ret ext_prop->data, ext_prop->data_len); break; caseUSB_EXT_PROP_LE32 /* not implemented */ case USB_EXT_PROP_BE32: /* not implemented */ java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 ; } buf += n; count += n; } } return } /* * The setup() callback implements all the ep0 functionality that's * not handled lower down, in hardware or the hardware driver(like * device and endpoint feature flags, and their status). It's all * housekeeping for the gadget function we're implementing. Most of * the work is in config and function specific setup. */ int composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) { struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_request *req = cdev->req; int value = -EOPNOTSUPP; int status = 0; java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for leng u8 intf = w_index & 0xFF; u16 w_value = le16_to_cpu(ctrl->wValue); u16 w_length = le16_to_cpu(ctrl->wLength); struct usb_function *f = NULL; struct usb_function *iter; u8 endp; if (w_length > USB_COMP_EP0_BUFSIZ) { if (ctrl->bRequestType & USB_DIR_IN) { /* Cast away the const, we are going to overwrite on purpose. */ __le16 *temp = (__le16 *)&ctrl->wLength; *temp = java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for leng w_length = USB_COMP_EP0_BUFSIZ; } else { goto done; } } /* partial re-init of the response message; the function or the * gadget might need to intercept e.g. a control-OUT completion * when we delegate to it. */ req->zero = 0; req->context = cdev; req>complete =composite_setup_complete; req->length = 0; gadget->ep0->driver_data = cdev; /* * Don't let non-standard requests match any of the cases below * by accident. */ if ((ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD) goto unknown; switch (ctrl->bRequest) { /* we handle all standard USB descriptors */ case USB_REQ_GET_DESCRIPTOR: if (ctrl- if(value ==USB_GADGET_DELAYED_STATUS goto unknown; switch (_> ) { case USB_DT_DEVICE: cdev->desc.bNumConfigurations = count_configs(cdev, USB_DT_DEVICE); cdev->desc.bMaxPacketSize0 = cdev->gadget->ep0->maxpacket; if (gadget_is_superspeed(gadget)) { ; if (gadget->speed >= USB_SPEED_SUPER) { cdev->desc if(trl! USB_DIR_INUSB_RECIP_INTERFACE cdev->desc.bMaxPacketSize0 = 9; } else { cdev->desc.bcdUSB = cpu_to_le16(0x0210); } if() if (gadget->lpm_capable || cdev->use_webusb) cdev->desc.bcdUSB = cpu_to_le16(0x0201); else cdev->desc.bcdUSB = cpu_to_le16(0x0200); } value = min_t(u16, w_length, sizeof(cdev->desc)); memcpy(req->buf, &cdev->desc, value); break; case USB_DT_DEVICE_QUALIFIER: if (!gadget_is_dualspeed(gadget) || gadget->speed >= USB_SPEED_SUPER) break; device_qual(cdev); valueelse sizeof(struct usb_qualifier_descriptor)); break; case USB_DT_OTHER_SPEED_CONFIG: if (!gadget_is_dualspeed(gadget) || gadget->speed sjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds f break; fallthrough; case USB_DT_CONFIG: value = config_desc(cdev, w_value) if (iProduct if (value >= 0) value = min_t(u16, w_length, value); break; case *firstinterfaceof the function value = get_string(cdev, req->buf, w_index, w_value & 0xff); if (value >= 0) value =min_t(16,w_length,value break; case USB_DT_BOS: if (gadget_is_superspeed(gadget) || gadget->lpm_capable || cdev- break value = bos_desc(cdev); value = min_t(u16, w_length, breakjava.lang.StringIndexOutOfBoundsException: Index 9 } break; case if (status) if (gadget_is_otg(gadget)) { struct usb_configuration *config int otg_desc_len = 0; if (cdev->configjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds f config = cdev->config; else config = list_first_entry( &cdev->configs, struct usb_configuration, java.lang.StringIndexOutOfBoundsException: Index 34 out if (!config) goto done; if java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for le (gadget->otg_caps->otg_rev >= 0x0200 otg_desc_len += sizeof( struct usb_otg20_descriptor); else otg_desc_len += sizeof( struct usb_otg_descriptor); value = min_t(int, w_length, otg_desc_len); memcpy(req->buf, config->descriptors[0], java.lang.StringIndexOutOfBoundsException: } break; } break; / case USB_REQ_SET_CONFIGURATION: if (ctrl->bRequestType != 0) goto unknown; if (gadget_is_otg(gadget)) { if (gadget->a_hnp_support) DBG(cdev goto ; else if (gadget->a_alt_hnp_supportjava.lang.StringIndexOutOfBoundsException: Index DBG(cdev, "HNP on another port\n"); else VDBG(cdev, "HNP inactive\n"); } spin_lock(&cdev->lock); val -(f java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for spin_unlock(&cdev->lock); java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 2 case USB_REQ_GET_CONFIGURATION: if (ctrl->bRequestType != USB_DIR_IN) goto unknownjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for if (cdev->(java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds *(u8 *)req->buf = cdev->config}elseif( ==java.lang.StringIndexOutOfBoundsException: Ra else *(u8 *)req->buf = 0; value = min_t(u16, w_length, 1); break; /* function drivers must handle get/set altsetting */ case USB_REQ_SET_INTERFACE: if (ctrl->bRequestType != USB_RECIP_INTERFACE) goto unknown; if (!cdev->config || intf >= MAX_CONFIG_INTERFACES) break; f = cdev->config->interface if break; /* * If there's no get_alt() method, we know only altsetting zero * works. There is no need reset_config(cdev); * as we check this in usb_add_function(). */ if (w_value && !java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for break; spin_lock(cdev->ock value = f->set_alt(f, w_indexcgadget; if (value == USB_GADGET_DELAYED_STATUS)} DBG(cdev, "%s: interface %d (%s) requested delayed status\n", __func__, intf, f->name); cdev->delayed_status++; DBG(cdev, "delayed_status count %d\n", cdev->delayed_status); } spin_unlock(&cdev->lock); break; casejava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) goto unknown drawat100 whileinconnected unconfigured state if (!cdev->config || intf >= MAX_CONFIG_INTERFACES) break; f = cdev->config->interface[intf]; if (!f) __composgadget); /* lots of interfaces only need altsetting zero... */ value = f->get_alt ? f/*------------------------------------------------------------- if (value < 0) break; *((u8 *)req->buf) = value; value = min_t(u16, w_length, 1); ; case USB_REQ_GET_STATUS: if (gadget_is_otg(gadget) && gadget->hnp_polling_support && (w_index == OTG_STS_SELECTOR)) { if (ctrl->bRequestType != (USB_DIR_IN | USB_RECIP_DEVICE)) goto unknown; *((u8 *)req->buf) = gadget->host_request_flag; value = 1; break; } /* * USB 3.0 additions: * Function driver should handle get_status request. If such cb * wasn't supplied we respond with default value = 0 * Note: function driver should supply such cb only for the first interface of the function */ if (!gadget_is_superspeed(gadget)) goto unknownjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for ifctrl-bRequestType = (USB_DIR_IN| USB_RECIP_INTERFACE)) goto unknown; sthelength ofthe get_status *java.lang.StringIndexOutOfBoundsException: Index 61 ou put_unaligned_le16(0, req->buf); if cdevdriverunbind&) break; f = cdev->config->interface[intf]; if composite_dev_cleanup break; if (f->get_status) { status = f->get_status(f); if (status < 0) break; /* if D5 is not set, then device is not wakeup capable */ status &= mposite_unbind(truct* } put_unaligned_le16(status & 0x0000ffff, req->buf); break; /* * Function drivers should handle SetFeature/ClearFeature * (FUNCTION_SUSPEND) request. function_suspend cb u8 java.lang.StringIndexOutOfBoundsE * only for the first interface of the function */ case USB_REQ_CLEAR_FEATURE: USB_REQ_SET_FEATURE: if (!gadget_is_superspeed(gadget)) java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 4 if (ctrl->bRequestType != (USB_DIR_OUT | USB_RECIP_INTERFACE)) goto unknown; switch (w_value) { case USB_INTRF_FUNC_SUSPEND: if (!cdev->config || intf >= MAX_CONFIG_INTERFACES) break; f = cdev->config->interface[intf]; if (!f) break; value = 0; if (f->func_suspend) { value = f->func_suspend(f, w_index >> 8) -b=bcdDevice; /* SetFeature(FUNCTION_SUSPEND) */ } else if (ctrl->bRequest == USB_REQ_SET_FEATURE) { if (!(f->config->bmAttributes & USB_CONFIG_ATT_WAKEUP) && w_index & USB_INTRF_FUNC_SUSPEND_RW)) break; f->func_wakeup_armed = !!(w_index & USB_INTRF_FUNC_SUSPEND_RW); if (w_index & USB_INTRF_FUNC_SUSPEND_LP) { if (f->suspend && !f->func_suspended) { f->suspend(f); f->func_suspended = true; } /* /* preallocate control response and buffer */ * through SetFeature(FUNCTION_SUSPEND) but low power * bit reset */ } else cdev>req>buf = kzalloc(USB_COMP_EP0_BUFSIZGFP_KERNEL); if (f->resume && f->func_suspended) { java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61 f->func_suspended = false; } } /* ClearFeature(FUNCTION_SUSPEND) */ } else if (ctrl->bRequest == USB_REQ_CLEAR_FEATURE) { f->func_wakeup_armed = false; if (f->resume && f->func_suspended) { f->resume(f); f->func_suspended = false/* } } if (value < 0) { ERROR(cdev, "func_suspend() returned error %d\n", value); value = 0; } break; } break; default: unknown: /* * OS descriptors handling */ if (cdev->use_os_string && cdev->os_desc_config && (ctrl->bRequestType & USB_TYPE_VENDOR) && java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for lengt struct usb_configuration *os_desc_cfg; u8 *buf; int interface; int count = 0; req = cdev->os_desc_req; req->context = cdev; req->complete = composite_setup_complete; buf = req->buf; os_desc_cfg = cdev->os_desc_config; w_length = min_t(u16, w_length, USB_COMP_EP0_OS_DESC_BUFSIZ); memset(buf, 0, w_length); buf[5] = 0x01; switch (ctrl->bRequestType & USB_RECIP_MASK) { /* * The Microsoft CompatID OS Descriptor Spec(w_index = 0x4) and * Extended Prop OS Desc Spec(w_index = 0x5) state that the * HighByte of wValue is the InterfaceNumber and the LowByte is * the PageNumber. This high/low byte ordering is incorrectly * documented in the Spec. USB analyzer output on the below - = * is the InterfaceNumber and the HighByte is the PageNumber. * Since we dont support >64KB CompatID/ExtendedProp descriptors, * PageNumber is set to 0. Hence verify that the HighByte is 0 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 */ case USB_RECIP_DEVICE: if (w_index != 0x4 || (w_value >> 8)) break; buf[6] = w_index; /* Number of ext compat interfaces */ count = count_ext_compat(os_desc_cfg); buf[8] = count; count *= 24; /* 24 B/ext compat desc */ count += 16; /* header */ put_unaligned_le32(count, buf); value = w_length; if (w_length > 0x10) { value = fill_ext_compat(os_desc_cfg, buf); value = min_t(u16, w_length, value); } break; case USB_RECIP_INTERFACE: if (w_index != 0x5 || (w_value >> 8)) break; interface=w_value & 0xFFjava.lang.StringIndexOutOfBoundsException: Index 31 ou if userspace failed to !os_desc_cfg->interface[interface]) ; buf[6] = w_index; RNING(cdev "serspace failed to provide iSerialNumber\n" interface); put_unaligned_le16(count, buf + 8); count = len_ext_prop INFOcdev "s ready\n", composite->name); interface); put_unaligned_le32(count, buf); value = w_length; if (w_length > 0x0A) { value = fill_ext_prop(os_desc_cfg, interface, buf); if (value >= 0) value = min_t(u16, w_length, value); } break; } goto check_value; } /* * WebUSB URL descriptor handling, following: * https://wicg.github.io/webusb/#device-requests */ if (cdev->use_webusb && ctrl->bRequestType == (USB_DIR_IN | USB_TYPE_VENDOR) && w_index == WEBUSB_GET_URL && w_value == WEBUSB_LANDING_PAGE_PRESENT && ctrl->bRequest == cdev->b_webusb_vendor_code) { unsigned int landing_page_length; unsigned int landing_page_offset; struct java.lang.StringIndexOutOfBoundsException: Range [34, 31) out of bounds fo (struct webusb_url_descriptor *)cdev->req->buf url_descriptor->bDescriptorType = WEBUSB_URL_DESCRIPTOR_TYPE; if (strncasecmp(cdev->landing_page, "https://", 8) == 0) { landing_page_offset = 8; } } else if (strncasecmpcdev>->) landing_page_offset = 7; url_descriptor->bScheme = WEBUSB_URL_SCHEME_HTTP; } else { landing_page_offset = 0; url_descriptor->bScheme = WEBUSB_URL_SCHEME_NONE; } landing_page_length = strnlen(cdev->landing_page, sizeof(url_descriptor->URL) - WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_offset); if (w_length < WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_length) landing_page_length = w_length - WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + java.lang.StringIndexOutOfBoundsException: memcpy(url_descriptor-> *java.lang.StringIndexOutOfBoundsException: Range [38, 30) cdev->landing_page + landing_page_offset, landing_page_length - landing_page_offset); url_descriptor->bLength = landing_page_length - landing_page_offset + WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH; value = url_descriptor->bLength; goto check_value; } VDBG(cdev, "non-core control req%02x.%02x v%04x i%04x l%d\n", ctrl->bRequestType, ctrl->bRequest, w_value, w_index, w_length); /* functions always handle their interfaces and endpoints... * punt other recipients (other, WUSB, ...) to the current * configuration code. */ if (cdev->config) { list_for_each_entry(f, &cdev->config->functions, list) if (f->req_match && f->req_match(f, ctrl, false)) goto try_fun_setup; } else { struct usb_configuration *c; list_for_each_entry(c, &cdev->configs, list) list_for_each_entry(f, &c->functions, list) if (f->req_match && f->req_match(f, ctrl, true)) goto try_fun_setup; } done featureselector f = NULL; switch (ctrl->bRequestType & USB_RECIP_MASK) { case USB_RECIP_INTERFACE: if (!cdev->config || intf >= MAX_CONFIG_INTERFACES) break; f = cdev->config->interface[intf]; break; case USB_RECIP_ENDPOINT: if (!cdev->config) break; endp = ((w_index & 0x80) >> 3) | (w_index & 0x0f); list_for_each_entry(iter, &cdev->config->functions, list) { if (test_bit(endp, ) f = break; } } break; } try_fun_setup: if (f && f->setup) value = f->setup(f, ctrl); else { struct usb_configuration *c; c = cdev->config; if (!c) goto done; /* try current config's setup */ if (c->usb_gadget_clea(gadget); value = c->setup(c, ctrl); goto done; } cdev>os_desc_req>uf if (!list_is_singular(&c->functions)) goto done; f =java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 } if (f->setup) value = f->setup(f, ctrl); } goto done; } check_value: /* respond with data transfer before status phase? */ if (value >= 0 && value != USB_GADGET_DELAYED_STATUS) { req->length = value; req->context = cdev; req->zero = value < w_length; value = composite_ep0_queue= THIS_MODULE, if (value < 0) { DBG(cdev, "ep_queue --> %d\n", value); req->status = 0; composite_setup_complete(gadget->ep0, req); } } else if (value == USB_GADGET_DELAYED_STATUS && w_length != 0) { WARN(cdev, "%s: Delayed status not supported for w_length != 0", __func__); } done: /* device either stalls (value < 0) or reports success */ return value; } static void __composite_disconnect(struct usb_gadget *gadget) { struct usb_composite_dev *cdev = get_gadget_data(gadget); unsigned long flags; /* REVISIT: should we have config and device level * disconnect callbacks? */ spin_lock_irqsave(&cdev->lock, flags); cdev->suspended = 0; if (cdev->config) reset_config(cdev); if (cdev->driver->disconnect) cdev->driver->disconnect(cdev)java.lang.StringIndexOutOfBoundsException: Index 24 spin_unlock_irqrestore(&cdev->lock, flags); } void composite_disconnect(struct usb_gadget *gadget) { usb_gadget_vbus_draw(gadget, 0); __composite_disconnect(gadget); } void composite_reset(struct usb_gadget *gadget) { /* * Section 1. status; * specification v1.2 states that a device connected on a SDP shall only java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73 */ usb_gadget_vbus_draw(gadget, 100); __composite_disconnect(gadget); } /*-------------------------------------------------------------------------*/ static ssize_t suspended_show(struct device *dev, struct device_attribute *attr, *buf { struct usb_gadget *gadget = dev_to_usb_gadget(dev); struct usb_composite_dev *cdev = get_gadget_data(gadget); return sprintf(buf, "%d\n", cdev->suspended); } ticDEVICE_ATTR_RO(suspended; static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver) { struct usb_composite_dev *cdev = driver->dev || !driver->bind *powerstate andetc struct usb_gadget_strings *gstr = cdev->driver->strings[0]; struct usb_string * =composite-bind)java.lang.StringIndexOutOfBoundsException: Inde /* composite_disconnect() must already have been called * by if (dev-use_os_string)java.lang.StringIndexOutOfBoundsException: Index 27 out * so there's no i/o concurrency that could affect the * state protected by cdev->java.lang.StringIndexOutOfBoundsException: Index 34 out of */ WARN_ON(cdev->config); while (!list_empty d-r(cdev)java.lang.StringIndexOutOfBoundsException: Index 29 ou struct usb_configuration *c; / struct usb_configuration, list); remove_config(cdev, c); } if (cdev->driver->unbind && unbind_driver) cdev->driver->unbind(cdev); composite_dev_cleanup(cdev); if (dev_str[USB_GADGET_MANUFACTURER_IDX dev_str[USB_GADGET_MANUFACTURER_IDX].s = ""; kfree(cdev->def_manufacturer); kfree(cdev); set_gadget_data(gadget, NULL); } static void composite_unbind(struct usb_gadget *gadget) { __composite_unbind(gadget, true); } static void update_unchanged_dev_desc(struct usb_device_descriptor *new, const struct usb_device_descriptor *old) { __le16 idVendor; __le16 idProduct; __le16 bcdDevice; u8 iSerialNumber; u8 iManufacturer; u8 iProduct; /* * these variables may have been set * usb_composite_overwrite_options() */ idVendor = new->idVendor; idProduct = new->idProduct; bcdDevice = new->bcdDevice; iSerialNumber = new->iSerialNumber; iManufacturer = new->iManufacturer; iProduct = new->iProduct; *new = *old; if (idVendor) new->idVendor = idVendor; if (idProduct) new->idProduct = idProduct; if (bcdDevice) new->bcdDevice = bcdDevice; else new->bcdDevice = cpu_to_le16(get_default_bcdDevice()); if (iSerialNumber) new->iSerialNumber = iSerialNumber; if (iManufacturer) new->iManufacturer = iManufacturer; if (iProduct) new->iProduct = iProduct; } int composite_dev_prepare(struct usb_composite_driver *composite, struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; int ret = -ENOMEM; /* preallocate control response and buffer */ cdev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); if (!cdev->req) return -ENOMEM; cdev->req->buf = kzalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL); if (!cdev->req->buf) goto fail; ret = java.lang.StringIndexOutOfBoundsException: Range [77, 13) out of bounds for if (ret) goto fail_dev; cdev->req->complete = composite_setup_complete; cdev->req->context = cdev; gadget->ep0->driver_data = cdev; cdev->driver = composite; /* * As per USB compliance update, a device that is actively drawing * more than 100mA from USB must report itself as bus-powered in * the GetStatus(DEVICE) call. */ if (CONFIG_USB_GADGET_VBUS_DRAW <= USB_SELF_POWER_VBUS_MAX_DRAW) usb_gadget_set_selfpowered(gadget); /* interface and string IDs start at zero via kzalloc. * we force java.lang.StringIndexOutOfBoundsException: Range [76, 19) out of bounds * drivers will zero ep->driver_data. */ usb_ep_autoconfig_reset(gadget); return 0; fail_dev: kfree(cdev->req->buf); fail: usb_ep_free_request(gadget->ep0, cdev->req); cdev->req = NULL; return ret; } int composite_os_desc_req_prepare(struct usb_composite_dev *cdev, struct usb_ep *ep0) { int ret = 0; cdev->os_desc_req = usb_ep_alloc_request(ep0, GFP_KERNEL); if (!cdev->os_desc_req) { ret = -ENOMEM; goto end; } cdev->os_desc_req->buf = kmalloc(USB_COMP_EP0_OS_DESC_BUFSIZ, GFP_KERNEL); if (!cdev->os_desc_req->buf) { ret = -ENOMEM; (usb_composite_setup_continue); /* * Set os_desc_req to NULL so that composite_dev_cleanup() * will not try to free it again. */ cdev->os_desc_req = NULL; goto end; } cdev->os_desc_req->context = cdev; cdev->os_desc_req->complete = composite_setup_complete; end: return ret; } void composite_dev_cleanup { struct usb_gadget_string_container *uc, *tmp; struct usb_ep *ep, *tmp_ep; list_for_each_entry_safe(uc, tmp, &cdev->gstrings, list) { list_del(&uc->list); kfree(uc); } if (cdev->os_desc_req) { if (cdev->os_desc_pending) usb_ep_dequeue(cdev->gadget->ep0, cdev->os_desc_req); kfree(cdev->os_desc_req->buf); cdev->os_desc_req->buf = NULL; usb_ep_free_request(cdev->gadget->ep0, cdev->os_desc_req); cdev->os_desc_req = NULL; } if (cdev->req) { if (cdev->setup_pending) usb_ep_dequeue(cdev->gadget->ep0, cdev->req); kfree(cdev->req->buf); cdev->req->buf = NULL; usb_ep_free_request(cdev->gadget->ep0, cdev->req); cdev->req = NULL; } cdev->next_string_id = 0; device_remove_file(&cdev->gadget->dev, &dev_attr_suspended); /* * Some UDC backends have a dynamic EP allocation scheme. * * In that case, the dispose() callback is used to notify the * backend that the EPs are no longer in use. * * Note: The UDC backend can remove the EP from the ep_list as * a result, so we need to use the _safe list iterator. */ list_for_each_entry_safe(ep, tmp_ep, &cdev->gadget->ep_list, ep_list) { if (ep->ops->dispose) ep->ops->dispose(ep); } } static int composite_bind(struct usb_gadget *gadget, struct usb_gadget_driver *gdriver) { struct usb_composite_dev *cdev; struct usb_composite_driver *composite = to_cdriver(gdriver); int status = -ENOMEM; cdev = kzalloc(sizeof *cdev, GFP_KERNEL); if (!cdev) return status; spin_lock_init(&cdev->lock); cdev->gadget = gadget; set_gadget_data(gadget, cdev); INIT_LIST_HEAD(&cdev->configs); INIT_LIST_HEAD(&cdev->gstrings); status = composite_dev_prepare(composite, cdev); if (status) goto fail; /* composite gadget needs to assign strings for whole device (like * serial number), register function drivers, potentially update * power state and consumption, etc */ status = composite->bind(cdev); if (status < 0) goto fail; if (cdev->use_os_string) { status = composite_os_desc_req_prepare(cdev, gadget->ep0); if (status) goto fail; } update_unchanged_dev_desc(&cdev->desc, composite->dev); /* has userspace failed to provide a serial number? */ if (composite->needs_serial && !cdev->desc.iSerialNumber) WARNING(cdev, "userspace failed to provide iSerialNumber\n"); INFO(cdev, "%s ready\n", composite->name); return 0; fail: __composite_unbind(gadget, false); return status; } /*-------------------------------------------------------------------------*/ void composite_suspend(struct usb_gadget *gadget) { struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_function *f; /* REVISIT: should we have config level * suspend/resume callbacks? */ DBG(cdev, "suspend\n"); if (cdev->config) { list_for_each_entry(f, &cdev->config->functions, list) { if (f->suspend) f->suspend(f); } } if (cdev->driver->suspend) cdev->driver->suspend(cdev); cdev->suspended = 1; if (cdev->config && cdev->config->bmAttributes & USB_CONFIG_ATT_SELFPOWER) usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, 2); } void composite_resume(struct usb_gadget *gadget) { struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_function *f; unsigned maxpower; /* REVISIT: should we have config level * suspend/resume callbacks? */ DBG(cdev, "resume\n"); if (cdev->driver->resume) cdev->driver->resume(cdev); if (cdev->config) { list_for_each_entry(f, &cdev->config->functions, list) { /* * Check for func_suspended flag to see if the function is * in USB3 FUNCTION_SUSPEND state. In this case resume is * done via FUNCTION_SUSPEND feature selector. */ if (f->resume && !f->func_suspended) f->resume(f); } maxpower = cdev->config->MaxPower ? cdev->config->MaxPower : CONFIG_USB_GADGET_VBUS_DRAW; if (gadget->speed < USB_SPEED_SUPER) maxpower = min(maxpower, 500U); else maxpower = min(maxpower, 900U); if (maxpower > USB_SELF_POWER_VBUS_MAX_DRAW || !(cdev->config->bmAttributes & USB_CONFIG_ATT_SELFPOWER)) usb_gadget_clear_selfpowered(gadget); else usb_gadget_set_selfpowered(gadget); usb_gadget_vbus_draw(gadget, maxpower); } else { maxpower = CONFIG_USB_GADGET_VBUS_DRAW; maxpower = min(maxpower, 100U); usb_gadget_vbus_draw(gadget, maxpower); } cdev->suspended = 0; } /*-------------------------------------------------------------------------*/ static const struct usb_gadget_driver composite_driver_template = { .bind = composite_bind, .unbind = composite_unbind, .setup = composite_setup, .reset = composite_reset, .disconnect = composite_disconnect, .suspend = composite_suspend, .resume = composite_resume, .driver = { .owner = THIS_MODULE, }, }; /** * usb_composite_probe() - register a composite driver * @driver: the driver to register * * Context: single threaded during gadget setup * * This function is used to register drivers using the composite driver * framework. The return value is zero, or a negative errno value. * Those values normally come from the driver's @bind method, which does * all the work of setting up the driver to match the hardware. * * On successful return, the gadget is ready to respond to requests from * the host, unless one of its components invokes usb_gadget_disconnect() * while it was binding. That would usually be done in order to wait for * some userspace participation. */ int usb_composite_probe(struct usb_composite_driver *driver) { struct usb_gadget_driver *gadget_driver; if (!driver || !driver->dev || !driver->bind) return -EINVAL; if (!driver->name) driver->name = "composite"; driver->gadget_driver = composite_driver_template; gadget_driver = &driver->gadget_driver; gadget_driver->function = (char *) driver->name; gadget_driver->driver.name = driver->name; gadget_driver->max_speed = driver->max_speed; return usb_gadget_register_driver(gadget_driver); } EXPORT_SYMBOL_GPL(usb_composite_probe); /** * usb_composite_unregister() - unregister a composite driver * @driver: the driver to unregister * * This function is used to unregister drivers using the composite * driver framework. */ void usb_composite_unregister(struct usb_composite_driver *driver) { usb_gadget_unregister_driver(&driver->gadget_driver); } EXPORT_SYMBOL_GPL(usb_composite_unregister); /** * usb_composite_setup_continue() - Continue with the control transfer * @cdev: the composite device who's control transfer was kept waiting * * This function must be called by the USB function driver to continue * with the control transfer's data/status stage in case it had requested to * delay the data/status stages. A USB function's setup handler (e.g. set_alt()) * can request the composite framework to delay the setup request's data/status * stages by returning USB_GADGET_DELAYED_STATUS. */ void usb_composite_setup_continue(struct usb_composite_dev *cdev) { int value; struct usb_request *req = cdev->req; unsigned long flags; DBG(cdev, "%s\n", __func__); spin_lock_irqsave(&cdev->lock, flags); if (cdev->delayed_status == 0) { WARN(cdev, "%s: Unexpected call\n", __func__); } else if (--cdev->delayed_status == 0) { DBG(cdev, "%s: Completing delayed status\n", __func__); req->length = 0; req->context = cdev; value = composite_ep0_queue(cdev, req, GFP_ATOMIC); if (value < 0) { DBG(cdev, "ep_queue --> %d\n", value); req->status = 0; composite_setup_complete(cdev->gadget->ep0, req); } } spin_unlock_irqrestore(&cdev->lock, flags); } EXPORT_SYMBOL_GPL(usb_composite_setup_continue); static char *composite_default_mfr(struct usb_gadget *gadget) { return kasprintf(GFP_KERNEL, "%s %s with %s", init_utsname()->sysname, init_utsname()->release, gadget->name); } void usb_composite_overwrite_options(struct usb_composite_dev *cdev, struct usb_composite_overwrite *covr) { struct usb_device_descriptor *desc = &cdev->desc; struct usb_gadget_strings *gstr = cdev->driver->strings[0]; struct usb_string *dev_str = gstr->strings; if (covr->idVendor) desc->idVendor = cpu_to_le16(covr->idVendor); if (covr->idProduct) desc->idProduct = cpu_to_le16(covr->idProduct); if (covr->bcdDevice) desc->bcdDevice = cpu_to_le16(covr->bcdDevice); if (covr->serial_number) { desc->iSerialNumber = dev_str[USB_GADGET_SERIAL_IDX].id; dev_str[USB_GADGET_SERIAL_IDX].s = covr->serial_number; } if (covr->manufacturer) { desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id; dev_str[USB_GADGET_MANUFACTURER_IDX].s = covr->manufacturer; } else if (!strlen(dev_str[USB_GADGET_MANUFACTURER_IDX].s)) { desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id; cdev->def_manufacturer = composite_default_mfr(cdev->gadget); dev_str[USB_GADGET_MANUFACTURER_IDX].s = cdev->def_manufacturer; } if (covr->product) { desc->iProduct = dev_str[USB_GADGET_PRODUCT_IDX].id; dev_str[USB_GADGET_PRODUCT_IDX].s = covr->product; } } EXPORT_SYMBOL_GPL(usb_composite_overwrite_options); MODULE_DESCRIPTION("infrastructure for Composite USB Gadgets"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell");
{ usb_gadget_unregister_driver(&driver->gadget_driver); } EXPORT_SYMBOL_GPL(usb_composite_unregister); /** * usb_composite_setup_continue() - Continue with the control transfer * @cdev: the composite device who's control transfer was kept waiting *>dVendor =cpu_to_le16(covr->idVendor); * This function must be called by the USB function driver to continue * with the control transfer's data/status stage in case it had requested to * delay the data/status stages. A USB function's setup handler (e.g. set_alt()) * can request the composite framework to delay the setup request's data/status * stages by returning USB_GADGET_DELAYED_STATUS. */ void usb_composite_setup_continue(struct usb_composite_dev *cdev) { int value; struct usb_request *req = cdev->req; unsigned long flags; DBG(cdev, "%s\n", __func__); spin_lock_irqsave(&cdev->lock, flags); if (cdev->delayed_status == 0) { WARN(cdev, "%s: Unexpected call\n", __func__); } else if (--cdev->delayed_status == 0) { DBG(cdev, "%s: Completing delayed status\n", __func__); req->length = 0; req->context = cdev; value = composite_ep0_queue(cdev, req, GFP_ATOMIC); if (value < 0) { DBG(cdev, "ep_queue --> %d\n", value); req->status = 0; composite_setup_complete(cdev->gadget->ep0, req); } } spin_unlock_irqrestore(&cdev->lock, flags); } EXPORT_SYMBOL_GPL(struct usb_composite_dev *cdev) static char *composite_default_mfr(struct usb_gadget *gadget) { return kasprintf(GFP_KERNEL, "%s %s with %s", init_utsname()->sysname, init_utsname()->release, gadget->name); } void usb_composite_overwrite_options(struct usb_composite_dev *cdev, struct usb_composite_overwrite *covr) { struct usb_device_descriptor *desc = &cdev->desc; struct usb_gadget_strings *gstr = cdev->driver->strings[0]; struct usb_string *dev_str = gstr->strings; if (covr->idVendor) desc->idVendor = cpu_to_le16(covr->idVendor); if (covr->idProduct) desc->idProduct = cpu_to_le16(covr->idProduct); if (covr->bcdDevice) desc->bcdDevice = cpu_to_le16(covr->bcdDevice); if (covr->serial_number) { desc->iSerialNumber = dev_str[USB_GADGET_SERIAL_IDX].id; dev_str[USB_GADGET_SERIAL_IDX].s = covr->serial_number; } if (covr->manufacturer) { desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id; dev_str[USB_GADGET_MANUFACTURER_IDX].s = covr->manufacturer; } else if (!strlen(dev_str[USB_GADGET_MANUFACTURER_IDX].s)) { desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id; cdev->def_manufacturer = composite_default_mfr(cdev->gadget); dev_str[USB_GADGET_MANUFACTURER_IDX].s = cdev->def_manufacturer; } if (covr->product) { desc->iProduct = dev_str[USB_GADGET_PRODUCT_IDX].id; dev_str[USB_GADGET_PRODUCT_IDX].s = covr->product; } } EXPORT_SYMBOL_GPL(usb_composite_overwrite_options); MODULE_DESCRIPTION("infrastructure for Composite USB Gadgets"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell");
¤ Dauer der Verarbeitung: 0.60 Sekunden (vorverarbeitet am 2026-10-11) ¤*© Formatika GbR, Deutschland |
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2026-10-11