+++ /dev/null
-/*
- * windows backend for libusb 1.0
- * Copyright © 2009-2012 Pete Batard <pete@akeo.ie>
- * Copyright © 2016-2018 Chris Dickens <christopher.a.dickens@gmail.com>
- * With contributions from Michael Plante, Orin Eman et al.
- * Parts of this code adapted from libusb-win32-v1 by Stephan Meyer
- * HID Reports IOCTLs inspired from HIDAPI by Alan Ott, Signal 11 Software
- * Hash table functions adapted from glibc, by Ulrich Drepper et al.
- * Major code testing contribution by Xiaofan Chen
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <config.h>
-
-#include <windows.h>
-#include <setupapi.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <process.h>
-#include <stdio.h>
-#include <inttypes.h>
-#include <objbase.h>
-#include <winioctl.h>
-
-#include "libusbi.h"
-#include "windows_common.h"
-#include "windows_nt_common.h"
-#include "windows_winusb.h"
-
-#define HANDLE_VALID(h) (((h) != NULL) && ((h) != INVALID_HANDLE_VALUE))
-
-// The 2 macros below are used in conjunction with safe loops.
-#define LOOP_CHECK(fcall) \
- { \
- r = fcall; \
- if (r != LIBUSB_SUCCESS) \
- continue; \
- }
-#define LOOP_BREAK(err) \
- { \
- r = err; \
- continue; \
- }
-
-// WinUSB-like API prototypes
-static int winusbx_init(struct libusb_context *ctx);
-static void winusbx_exit(void);
-static int winusbx_open(int sub_api, struct libusb_device_handle *dev_handle);
-static void winusbx_close(int sub_api, struct libusb_device_handle *dev_handle);
-static int winusbx_configure_endpoints(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int winusbx_claim_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int winusbx_release_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int winusbx_submit_control_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int winusbx_set_interface_altsetting(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting);
-static int winusbx_submit_iso_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int winusbx_submit_bulk_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int winusbx_clear_halt(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint);
-static int winusbx_abort_transfers(int sub_api, struct usbi_transfer *itransfer);
-static int winusbx_abort_control(int sub_api, struct usbi_transfer *itransfer);
-static int winusbx_reset_device(int sub_api, struct libusb_device_handle *dev_handle);
-static int winusbx_copy_transfer_data(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size);
-// HID API prototypes
-static int hid_init(struct libusb_context *ctx);
-static void hid_exit(void);
-static int hid_open(int sub_api, struct libusb_device_handle *dev_handle);
-static void hid_close(int sub_api, struct libusb_device_handle *dev_handle);
-static int hid_claim_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int hid_release_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int hid_set_interface_altsetting(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting);
-static int hid_submit_control_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int hid_submit_bulk_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int hid_clear_halt(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint);
-static int hid_abort_transfers(int sub_api, struct usbi_transfer *itransfer);
-static int hid_reset_device(int sub_api, struct libusb_device_handle *dev_handle);
-static int hid_copy_transfer_data(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size);
-// Composite API prototypes
-static int composite_open(int sub_api, struct libusb_device_handle *dev_handle);
-static void composite_close(int sub_api, struct libusb_device_handle *dev_handle);
-static int composite_claim_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int composite_set_interface_altsetting(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting);
-static int composite_release_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface);
-static int composite_submit_control_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int composite_submit_bulk_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int composite_submit_iso_transfer(int sub_api, struct usbi_transfer *itransfer);
-static int composite_clear_halt(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint);
-static int composite_abort_transfers(int sub_api, struct usbi_transfer *itransfer);
-static int composite_abort_control(int sub_api, struct usbi_transfer *itransfer);
-static int composite_reset_device(int sub_api, struct libusb_device_handle *dev_handle);
-static int composite_copy_transfer_data(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size);
-
-static usbi_mutex_t autoclaim_lock;
-
-// API globals
-static HMODULE WinUSBX_handle = NULL;
-static struct winusb_interface WinUSBX[SUB_API_MAX];
-#define CHECK_WINUSBX_AVAILABLE(sub_api) \
- do { \
- if (sub_api == SUB_API_NOTSET) \
- sub_api = priv->sub_api; \
- if (!WinUSBX[sub_api].initialized) \
- return LIBUSB_ERROR_ACCESS; \
- } while (0)
-
-static bool api_hid_available = false;
-#define CHECK_HID_AVAILABLE \
- do { \
- if (!api_hid_available) \
- return LIBUSB_ERROR_ACCESS; \
- } while (0)
-
-#if defined(ENABLE_LOGGING)
-static const char *guid_to_string(const GUID *guid)
-{
- static char guid_string[MAX_GUID_STRING_LENGTH];
-
- if (guid == NULL)
- return "";
-
- sprintf(guid_string, "{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
- (unsigned int)guid->Data1, guid->Data2, guid->Data3,
- guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
- guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
-
- return guid_string;
-}
-#endif
-
-/*
- * Sanitize Microsoft's paths: convert to uppercase, add prefix and fix backslashes.
- * Return an allocated sanitized string or NULL on error.
- */
-static char *sanitize_path(const char *path)
-{
- const char root_prefix[] = {'\\', '\\', '.', '\\'};
- size_t j, size;
- char *ret_path;
- size_t add_root = 0;
-
- if (path == NULL)
- return NULL;
-
- size = strlen(path) + 1;
-
- // Microsoft indiscriminately uses '\\?\', '\\.\', '##?#" or "##.#" for root prefixes.
- if (!((size > 3) && (((path[0] == '\\') && (path[1] == '\\') && (path[3] == '\\'))
- || ((path[0] == '#') && (path[1] == '#') && (path[3] == '#'))))) {
- add_root = sizeof(root_prefix);
- size += add_root;
- }
-
- ret_path = malloc(size);
- if (ret_path == NULL)
- return NULL;
-
- strcpy(&ret_path[add_root], path);
-
- // Ensure consistency with root prefix
- memcpy(ret_path, root_prefix, sizeof(root_prefix));
-
- // Same goes for '\' and '#' after the root prefix. Ensure '#' is used
- for (j = sizeof(root_prefix); j < size; j++) {
- ret_path[j] = (char)toupper((int)ret_path[j]); // Fix case too
- if (ret_path[j] == '\\')
- ret_path[j] = '#';
- }
-
- return ret_path;
-}
-
-/*
- * Cfgmgr32, AdvAPI32, OLE32 and SetupAPI DLL functions
- */
-static BOOL init_dlls(void)
-{
- DLL_GET_HANDLE(Cfgmgr32);
- DLL_LOAD_FUNC(Cfgmgr32, CM_Get_Parent, TRUE);
- DLL_LOAD_FUNC(Cfgmgr32, CM_Get_Child, TRUE);
-
- // Prefixed to avoid conflict with header files
- DLL_GET_HANDLE(AdvAPI32);
- DLL_LOAD_FUNC_PREFIXED(AdvAPI32, p, RegQueryValueExW, TRUE);
- DLL_LOAD_FUNC_PREFIXED(AdvAPI32, p, RegCloseKey, TRUE);
-
- DLL_GET_HANDLE(OLE32);
- DLL_LOAD_FUNC_PREFIXED(OLE32, p, IIDFromString, TRUE);
-
- DLL_GET_HANDLE(SetupAPI);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiGetClassDevsA, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiEnumDeviceInfo, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiEnumDeviceInterfaces, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiGetDeviceInstanceIdA, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiGetDeviceInterfaceDetailA, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiGetDeviceRegistryPropertyA, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiDestroyDeviceInfoList, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiOpenDevRegKey, TRUE);
- DLL_LOAD_FUNC_PREFIXED(SetupAPI, p, SetupDiOpenDeviceInterfaceRegKey, TRUE);
-
- return TRUE;
-}
-
-static void exit_dlls(void)
-{
- DLL_FREE_HANDLE(Cfgmgr32);
- DLL_FREE_HANDLE(AdvAPI32);
- DLL_FREE_HANDLE(OLE32);
- DLL_FREE_HANDLE(SetupAPI);
-}
-
-/*
- * enumerate interfaces for the whole USB class
- *
- * Parameters:
- * dev_info: a pointer to a dev_info list
- * dev_info_data: a pointer to an SP_DEVINFO_DATA to be filled (or NULL if not needed)
- * enumerator: the generic USB class for which to retrieve interface details
- * index: zero based index of the interface in the device info list
- *
- * Note: it is the responsibility of the caller to free the DEVICE_INTERFACE_DETAIL_DATA
- * structure returned and call this function repeatedly using the same guid (with an
- * incremented index starting at zero) until all interfaces have been returned.
- */
-static bool get_devinfo_data(struct libusb_context *ctx,
- HDEVINFO *dev_info, SP_DEVINFO_DATA *dev_info_data, const char *enumerator, unsigned _index)
-{
- if (_index == 0) {
- *dev_info = pSetupDiGetClassDevsA(NULL, enumerator, NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES);
- if (*dev_info == INVALID_HANDLE_VALUE) {
- usbi_err(ctx, "could not obtain device info set for PnP enumerator '%s': %s",
- enumerator, windows_error_str(0));
- return false;
- }
- }
-
- dev_info_data->cbSize = sizeof(SP_DEVINFO_DATA);
- if (!pSetupDiEnumDeviceInfo(*dev_info, _index, dev_info_data)) {
- if (GetLastError() != ERROR_NO_MORE_ITEMS)
- usbi_err(ctx, "could not obtain device info data for PnP enumerator '%s' index %u: %s",
- enumerator, _index, windows_error_str(0));
-
- pSetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return false;
- }
- return true;
-}
-
-/*
- * enumerate interfaces for a specific GUID
- *
- * Parameters:
- * dev_info: a pointer to a dev_info list
- * dev_info_data: a pointer to an SP_DEVINFO_DATA to be filled (or NULL if not needed)
- * guid: the GUID for which to retrieve interface details
- * index: zero based index of the interface in the device info list
- *
- * Note: it is the responsibility of the caller to free the DEVICE_INTERFACE_DETAIL_DATA
- * structure returned and call this function repeatedly using the same guid (with an
- * incremented index starting at zero) until all interfaces have been returned.
- */
-static int get_interface_details(struct libusb_context *ctx, HDEVINFO dev_info,
- PSP_DEVINFO_DATA dev_info_data, LPCGUID guid, DWORD *_index, char **dev_interface_path)
-{
- SP_DEVICE_INTERFACE_DATA dev_interface_data;
- PSP_DEVICE_INTERFACE_DETAIL_DATA_A dev_interface_details;
- DWORD size;
-
- dev_info_data->cbSize = sizeof(SP_DEVINFO_DATA);
- dev_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
- for (;;) {
- if (!pSetupDiEnumDeviceInfo(dev_info, *_index, dev_info_data)) {
- if (GetLastError() != ERROR_NO_MORE_ITEMS) {
- usbi_err(ctx, "Could not obtain device info data for %s index %u: %s",
- guid_to_string(guid), *_index, windows_error_str(0));
- return LIBUSB_ERROR_OTHER;
- }
-
- // No more devices
- return LIBUSB_SUCCESS;
- }
-
- // Always advance the index for the next iteration
- (*_index)++;
-
- if (pSetupDiEnumDeviceInterfaces(dev_info, dev_info_data, guid, 0, &dev_interface_data))
- break;
-
- if (GetLastError() != ERROR_NO_MORE_ITEMS) {
- usbi_err(ctx, "Could not obtain interface data for %s devInst %X: %s",
- guid_to_string(guid), dev_info_data->DevInst, windows_error_str(0));
- return LIBUSB_ERROR_OTHER;
- }
-
- // Device does not have an interface matching this GUID, skip
- }
-
- // Read interface data (dummy + actual) to access the device path
- if (!pSetupDiGetDeviceInterfaceDetailA(dev_info, &dev_interface_data, NULL, 0, &size, NULL)) {
- // The dummy call should fail with ERROR_INSUFFICIENT_BUFFER
- if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
- usbi_err(ctx, "could not access interface data (dummy) for %s devInst %X: %s",
- guid_to_string(guid), dev_info_data->DevInst, windows_error_str(0));
- return LIBUSB_ERROR_OTHER;
- }
- } else {
- usbi_err(ctx, "program assertion failed - http://msdn.microsoft.com/en-us/library/ms792901.aspx is wrong");
- return LIBUSB_ERROR_OTHER;
- }
-
- dev_interface_details = malloc(size);
- if (dev_interface_details == NULL) {
- usbi_err(ctx, "could not allocate interface data for %s devInst %X",
- guid_to_string(guid), dev_info_data->DevInst);
- return LIBUSB_ERROR_NO_MEM;
- }
-
- dev_interface_details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);
- if (!pSetupDiGetDeviceInterfaceDetailA(dev_info, &dev_interface_data,
- dev_interface_details, size, NULL, NULL)) {
- usbi_err(ctx, "could not access interface data (actual) for %s devInst %X: %s",
- guid_to_string(guid), dev_info_data->DevInst, windows_error_str(0));
- free(dev_interface_details);
- return LIBUSB_ERROR_OTHER;
- }
-
- *dev_interface_path = sanitize_path(dev_interface_details->DevicePath);
- free(dev_interface_details);
-
- if (*dev_interface_path == NULL) {
- usbi_err(ctx, "could not allocate interface path for %s devInst %X",
- guid_to_string(guid), dev_info_data->DevInst);
- return LIBUSB_ERROR_NO_MEM;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/* For libusb0 filter */
-static SP_DEVICE_INTERFACE_DETAIL_DATA_A *get_interface_details_filter(struct libusb_context *ctx,
- HDEVINFO *dev_info, SP_DEVINFO_DATA *dev_info_data, const GUID *guid, unsigned _index, char *filter_path)
-{
- SP_DEVICE_INTERFACE_DATA dev_interface_data;
- SP_DEVICE_INTERFACE_DETAIL_DATA_A *dev_interface_details;
- DWORD size;
-
- if (_index == 0)
- *dev_info = pSetupDiGetClassDevsA(guid, NULL, NULL, DIGCF_PRESENT|DIGCF_DEVICEINTERFACE);
-
- if (dev_info_data != NULL) {
- dev_info_data->cbSize = sizeof(SP_DEVINFO_DATA);
- if (!pSetupDiEnumDeviceInfo(*dev_info, _index, dev_info_data)) {
- if (GetLastError() != ERROR_NO_MORE_ITEMS)
- usbi_err(ctx, "Could not obtain device info data for index %u: %s",
- _index, windows_error_str(0));
-
- pSetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return NULL;
- }
- }
-
- dev_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
- if (!pSetupDiEnumDeviceInterfaces(*dev_info, NULL, guid, _index, &dev_interface_data)) {
- if (GetLastError() != ERROR_NO_MORE_ITEMS)
- usbi_err(ctx, "Could not obtain interface data for index %u: %s",
- _index, windows_error_str(0));
-
- pSetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return NULL;
- }
-
- // Read interface data (dummy + actual) to access the device path
- if (!pSetupDiGetDeviceInterfaceDetailA(*dev_info, &dev_interface_data, NULL, 0, &size, NULL)) {
- // The dummy call should fail with ERROR_INSUFFICIENT_BUFFER
- if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
- usbi_err(ctx, "could not access interface data (dummy) for index %u: %s",
- _index, windows_error_str(0));
- goto err_exit;
- }
- } else {
- usbi_err(ctx, "program assertion failed - http://msdn.microsoft.com/en-us/library/ms792901.aspx is wrong.");
- goto err_exit;
- }
-
- dev_interface_details = calloc(1, size);
- if (dev_interface_details == NULL) {
- usbi_err(ctx, "could not allocate interface data for index %u.", _index);
- goto err_exit;
- }
-
- dev_interface_details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);
- if (!pSetupDiGetDeviceInterfaceDetailA(*dev_info, &dev_interface_data, dev_interface_details, size, &size, NULL))
- usbi_err(ctx, "could not access interface data (actual) for index %u: %s",
- _index, windows_error_str(0));
-
- // [trobinso] lookup the libusb0 symbolic index.
- if (dev_interface_details) {
- HKEY hkey_device_interface = pSetupDiOpenDeviceInterfaceRegKey(*dev_info, &dev_interface_data, 0, KEY_READ);
- if (hkey_device_interface != INVALID_HANDLE_VALUE) {
- DWORD libusb0_symboliclink_index = 0;
- DWORD value_length = sizeof(DWORD);
- DWORD value_type = 0;
- LONG status;
-
- status = pRegQueryValueExW(hkey_device_interface, L"LUsb0", NULL, &value_type,
- (LPBYTE)&libusb0_symboliclink_index, &value_length);
- if (status == ERROR_SUCCESS) {
- if (libusb0_symboliclink_index < 256) {
- // libusb0.sys is connected to this device instance.
- // If the the device interface guid is {F9F3FF14-AE21-48A0-8A25-8011A7A931D9} then it's a filter.
- sprintf(filter_path, "\\\\.\\libusb0-%04u", (unsigned int)libusb0_symboliclink_index);
- usbi_dbg("assigned libusb0 symbolic link %s", filter_path);
- } else {
- // libusb0.sys was connected to this device instance at one time; but not anymore.
- }
- }
- pRegCloseKey(hkey_device_interface);
- }
- }
-
- return dev_interface_details;
-
-err_exit:
- pSetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return NULL;
-}
-
-/*
- * Returns the first known ancestor of a device
- */
-static struct libusb_device *get_ancestor(struct libusb_context *ctx,
- DEVINST devinst, PDEVINST _parent_devinst)
-{
- struct libusb_device *dev = NULL;
- DEVINST parent_devinst;
-
- while (dev == NULL) {
- if (CM_Get_Parent(&parent_devinst, devinst, 0) != CR_SUCCESS)
- break;
- devinst = parent_devinst;
- dev = usbi_get_device_by_session_id(ctx, (unsigned long)devinst);
- }
-
- if ((dev != NULL) && (_parent_devinst != NULL))
- *_parent_devinst = devinst;
-
- return dev;
-}
-
-/*
- * Determine which interface the given endpoint address belongs to
- */
-static int get_interface_by_endpoint(struct libusb_config_descriptor *conf_desc, uint8_t ep)
-{
- const struct libusb_interface *intf;
- const struct libusb_interface_descriptor *intf_desc;
- int i, j, k;
-
- for (i = 0; i < conf_desc->bNumInterfaces; i++) {
- intf = &conf_desc->interface[i];
- for (j = 0; j < intf->num_altsetting; j++) {
- intf_desc = &intf->altsetting[j];
- for (k = 0; k < intf_desc->bNumEndpoints; k++) {
- if (intf_desc->endpoint[k].bEndpointAddress == ep) {
- usbi_dbg("found endpoint %02X on interface %d", intf_desc->bInterfaceNumber, i);
- return intf_desc->bInterfaceNumber;
- }
- }
- }
- }
-
- usbi_dbg("endpoint %02X not found on any interface", ep);
- return LIBUSB_ERROR_NOT_FOUND;
-}
-
-/*
- * Populate the endpoints addresses of the device_priv interface helper structs
- */
-static int windows_assign_endpoints(struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- int i, r;
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- struct libusb_config_descriptor *conf_desc;
- const struct libusb_interface_descriptor *if_desc;
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
-
- r = libusb_get_active_config_descriptor(dev_handle->dev, &conf_desc);
- if (r != LIBUSB_SUCCESS) {
- usbi_warn(ctx, "could not read config descriptor: error %d", r);
- return r;
- }
-
- if_desc = &conf_desc->interface[iface].altsetting[altsetting];
- safe_free(priv->usb_interface[iface].endpoint);
-
- if (if_desc->bNumEndpoints == 0) {
- usbi_dbg("no endpoints found for interface %d", iface);
- libusb_free_config_descriptor(conf_desc);
- return LIBUSB_SUCCESS;
- }
-
- priv->usb_interface[iface].endpoint = malloc(if_desc->bNumEndpoints);
- if (priv->usb_interface[iface].endpoint == NULL) {
- libusb_free_config_descriptor(conf_desc);
- return LIBUSB_ERROR_NO_MEM;
- }
-
- priv->usb_interface[iface].nb_endpoints = if_desc->bNumEndpoints;
- for (i = 0; i < if_desc->bNumEndpoints; i++) {
- priv->usb_interface[iface].endpoint[i] = if_desc->endpoint[i].bEndpointAddress;
- usbi_dbg("(re)assigned endpoint %02X to interface %d", priv->usb_interface[iface].endpoint[i], iface);
- }
- libusb_free_config_descriptor(conf_desc);
-
- // Extra init may be required to configure endpoints
- if (priv->apib->configure_endpoints)
- r = priv->apib->configure_endpoints(SUB_API_NOTSET, dev_handle, iface);
-
- return r;
-}
-
-// Lookup for a match in the list of API driver names
-// return -1 if not found, driver match number otherwise
-static int get_sub_api(char *driver, int api)
-{
- int i;
- const char sep_str[2] = {LIST_SEPARATOR, 0};
- char *tok, *tmp_str;
- size_t len = strlen(driver);
-
- if (len == 0)
- return SUB_API_NOTSET;
-
- tmp_str = _strdup(driver);
- if (tmp_str == NULL)
- return SUB_API_NOTSET;
-
- tok = strtok(tmp_str, sep_str);
- while (tok != NULL) {
- for (i = 0; i < usb_api_backend[api].nb_driver_names; i++) {
- if (_stricmp(tok, usb_api_backend[api].driver_name_list[i]) == 0) {
- free(tmp_str);
- return i;
- }
- }
- tok = strtok(NULL, sep_str);
- }
-
- free(tmp_str);
- return SUB_API_NOTSET;
-}
-
-/*
- * auto-claiming and auto-release helper functions
- */
-static int auto_claim(struct libusb_transfer *transfer, int *interface_number, int api_type)
-{
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(
- transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int current_interface = *interface_number;
- int r = LIBUSB_SUCCESS;
-
- switch (api_type) {
- case USB_API_WINUSBX:
- case USB_API_HID:
- break;
- default:
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- usbi_mutex_lock(&autoclaim_lock);
- if (current_interface < 0) { // No serviceable interface was found
- for (current_interface = 0; current_interface < USB_MAXINTERFACES; current_interface++) {
- // Must claim an interface of the same API type
- if ((priv->usb_interface[current_interface].apib->id == api_type)
- && (libusb_claim_interface(transfer->dev_handle, current_interface) == LIBUSB_SUCCESS)) {
- usbi_dbg("auto-claimed interface %d for control request", current_interface);
- if (handle_priv->autoclaim_count[current_interface] != 0)
- usbi_warn(ctx, "program assertion failed - autoclaim_count was nonzero");
- handle_priv->autoclaim_count[current_interface]++;
- break;
- }
- }
- if (current_interface == USB_MAXINTERFACES) {
- usbi_err(ctx, "could not auto-claim any interface");
- r = LIBUSB_ERROR_NOT_FOUND;
- }
- } else {
- // If we have a valid interface that was autoclaimed, we must increment
- // its autoclaim count so that we can prevent an early release.
- if (handle_priv->autoclaim_count[current_interface] != 0)
- handle_priv->autoclaim_count[current_interface]++;
- }
- usbi_mutex_unlock(&autoclaim_lock);
-
- *interface_number = current_interface;
- return r;
-}
-
-static void auto_release(struct usbi_transfer *itransfer)
-{
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- libusb_device_handle *dev_handle = transfer->dev_handle;
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- int r;
-
- usbi_mutex_lock(&autoclaim_lock);
- if (handle_priv->autoclaim_count[transfer_priv->interface_number] > 0) {
- handle_priv->autoclaim_count[transfer_priv->interface_number]--;
- if (handle_priv->autoclaim_count[transfer_priv->interface_number] == 0) {
- r = libusb_release_interface(dev_handle, transfer_priv->interface_number);
- if (r == LIBUSB_SUCCESS)
- usbi_dbg("auto-released interface %d", transfer_priv->interface_number);
- else
- usbi_dbg("failed to auto-release interface %d (%s)",
- transfer_priv->interface_number, libusb_error_name((enum libusb_error)r));
- }
- }
- usbi_mutex_unlock(&autoclaim_lock);
-}
-
-/*
- * init: libusb backend init function
- */
-static int winusb_init(struct libusb_context *ctx)
-{
- int i;
-
- // We need a lock for proper auto-release
- usbi_mutex_init(&autoclaim_lock);
-
- // Load DLL imports
- if (!init_dlls()) {
- usbi_err(ctx, "could not resolve DLL functions");
- return LIBUSB_ERROR_OTHER;
- }
-
- // Initialize the low level APIs (we don't care about errors at this stage)
- for (i = 0; i < USB_API_MAX; i++) {
- if (usb_api_backend[i].init && usb_api_backend[i].init(ctx))
- usbi_warn(ctx, "error initializing %s backend",
- usb_api_backend[i].designation);
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
-* exit: libusb backend deinitialization function
-*/
-static void winusb_exit(struct libusb_context *ctx)
-{
- int i;
-
- for (i = 0; i < USB_API_MAX; i++) {
- if (usb_api_backend[i].exit)
- usb_api_backend[i].exit();
- }
-
- exit_dlls();
- usbi_mutex_destroy(&autoclaim_lock);
-}
-
-/*
- * fetch and cache all the config descriptors through I/O
- */
-static void cache_config_descriptors(struct libusb_device *dev, HANDLE hub_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev);
- struct winusb_device_priv *priv = _device_priv(dev);
- DWORD size, ret_size;
- uint8_t i;
-
- USB_CONFIGURATION_DESCRIPTOR_SHORT cd_buf_short; // dummy request
- PUSB_DESCRIPTOR_REQUEST cd_buf_actual = NULL; // actual request
- PUSB_CONFIGURATION_DESCRIPTOR cd_data;
-
- if (dev->num_configurations == 0)
- return;
-
- priv->config_descriptor = calloc(dev->num_configurations, sizeof(PUSB_CONFIGURATION_DESCRIPTOR));
- if (priv->config_descriptor == NULL) {
- usbi_err(ctx, "could not allocate configuration descriptor array for '%s'", priv->dev_id);
- return;
- }
-
- for (i = 0; i <= dev->num_configurations; i++) {
- safe_free(cd_buf_actual);
-
- if (i == dev->num_configurations)
- break;
-
- size = sizeof(cd_buf_short);
- memset(&cd_buf_short, 0, size);
-
- cd_buf_short.req.ConnectionIndex = (ULONG)dev->port_number;
- cd_buf_short.req.SetupPacket.bmRequest = LIBUSB_ENDPOINT_IN;
- cd_buf_short.req.SetupPacket.bRequest = LIBUSB_REQUEST_GET_DESCRIPTOR;
- cd_buf_short.req.SetupPacket.wValue = (LIBUSB_DT_CONFIG << 8) | i;
- cd_buf_short.req.SetupPacket.wIndex = 0;
- cd_buf_short.req.SetupPacket.wLength = (USHORT)sizeof(USB_CONFIGURATION_DESCRIPTOR);
-
- // Dummy call to get the required data size. Initial failures are reported as info rather
- // than error as they can occur for non-penalizing situations, such as with some hubs.
- // coverity[tainted_data_argument]
- if (!DeviceIoControl(hub_handle, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, &cd_buf_short, size,
- &cd_buf_short, size, &ret_size, NULL)) {
- usbi_info(ctx, "could not access configuration descriptor %u (dummy) for '%s': %s", i, priv->dev_id, windows_error_str(0));
- continue;
- }
-
- if ((ret_size != size) || (cd_buf_short.desc.wTotalLength < sizeof(USB_CONFIGURATION_DESCRIPTOR))) {
- usbi_info(ctx, "unexpected configuration descriptor %u size (dummy) for '%s'", i, priv->dev_id);
- continue;
- }
-
- size = sizeof(USB_DESCRIPTOR_REQUEST) + cd_buf_short.desc.wTotalLength;
- cd_buf_actual = malloc(size);
- if (cd_buf_actual == NULL) {
- usbi_err(ctx, "could not allocate configuration descriptor %u buffer for '%s'", i, priv->dev_id);
- continue;
- }
-
- // Actual call
- cd_buf_actual->ConnectionIndex = (ULONG)dev->port_number;
- cd_buf_actual->SetupPacket.bmRequest = LIBUSB_ENDPOINT_IN;
- cd_buf_actual->SetupPacket.bRequest = LIBUSB_REQUEST_GET_DESCRIPTOR;
- cd_buf_actual->SetupPacket.wValue = (LIBUSB_DT_CONFIG << 8) | i;
- cd_buf_actual->SetupPacket.wIndex = 0;
- cd_buf_actual->SetupPacket.wLength = cd_buf_short.desc.wTotalLength;
-
- if (!DeviceIoControl(hub_handle, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, cd_buf_actual, size,
- cd_buf_actual, size, &ret_size, NULL)) {
- usbi_err(ctx, "could not access configuration descriptor %u (actual) for '%s': %s", i, priv->dev_id, windows_error_str(0));
- continue;
- }
-
- cd_data = (PUSB_CONFIGURATION_DESCRIPTOR)((UCHAR *)cd_buf_actual + sizeof(USB_DESCRIPTOR_REQUEST));
-
- if ((size != ret_size) || (cd_data->wTotalLength != cd_buf_short.desc.wTotalLength)) {
- usbi_err(ctx, "unexpected configuration descriptor %u size (actual) for '%s'", i, priv->dev_id);
- continue;
- }
-
- if (cd_data->bDescriptorType != LIBUSB_DT_CONFIG) {
- usbi_err(ctx, "descriptor %u not a configuration descriptor for '%s'", i, priv->dev_id);
- continue;
- }
-
- usbi_dbg("cached config descriptor %u (bConfigurationValue=%u, %u bytes)",
- i, cd_data->bConfigurationValue, cd_data->wTotalLength);
-
- // Cache the descriptor
- priv->config_descriptor[i] = malloc(cd_data->wTotalLength);
- if (priv->config_descriptor[i] != NULL) {
- memcpy(priv->config_descriptor[i], cd_data, cd_data->wTotalLength);
- } else {
- usbi_err(ctx, "could not allocate configuration descriptor %u buffer for '%s'", i, priv->dev_id);
- }
- }
-}
-
-/*
- * Populate a libusb device structure
- */
-static int init_device(struct libusb_device *dev, struct libusb_device *parent_dev,
- uint8_t port_number, DEVINST devinst)
-{
- struct libusb_context *ctx;
- struct libusb_device *tmp_dev;
- struct winusb_device_priv *priv, *parent_priv;
- USB_NODE_CONNECTION_INFORMATION_EX conn_info;
- USB_NODE_CONNECTION_INFORMATION_EX_V2 conn_info_v2;
- HANDLE hub_handle;
- DWORD size;
- uint8_t bus_number, depth;
- int r;
-
- priv = _device_priv(dev);
-
- // If the device is already initialized, we can stop here
- if (priv->initialized)
- return LIBUSB_SUCCESS;
-
- if (parent_dev != NULL) { // Not a HCD root hub
- ctx = DEVICE_CTX(dev);
- parent_priv = _device_priv(parent_dev);
- if (parent_priv->apib->id != USB_API_HUB) {
- usbi_warn(ctx, "parent for device '%s' is not a hub", priv->dev_id);
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- // Calculate depth and fetch bus number
- bus_number = parent_dev->bus_number;
- if (bus_number == 0) {
- tmp_dev = get_ancestor(ctx, devinst, &devinst);
- if (tmp_dev != parent_dev) {
- usbi_err(ctx, "program assertion failed - first ancestor is not parent");
- return LIBUSB_ERROR_NOT_FOUND;
- }
- libusb_unref_device(tmp_dev);
-
- for (depth = 1; bus_number == 0; depth++) {
- tmp_dev = get_ancestor(ctx, devinst, &devinst);
- if (tmp_dev->bus_number != 0) {
- bus_number = tmp_dev->bus_number;
- depth += _device_priv(tmp_dev)->depth;
- }
- libusb_unref_device(tmp_dev);
- }
- } else {
- depth = parent_priv->depth + 1;
- }
-
- if (bus_number == 0) {
- usbi_err(ctx, "program assertion failed - bus number not found for '%s'", priv->dev_id);
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- dev->bus_number = bus_number;
- dev->port_number = port_number;
- dev->parent_dev = parent_dev;
- priv->depth = depth;
-
- hub_handle = CreateFileA(parent_priv->path, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
- 0, NULL);
- if (hub_handle == INVALID_HANDLE_VALUE) {
- usbi_warn(ctx, "could not open hub %s: %s", parent_priv->path, windows_error_str(0));
- return LIBUSB_ERROR_ACCESS;
- }
-
- memset(&conn_info, 0, sizeof(conn_info));
- conn_info.ConnectionIndex = (ULONG)port_number;
- // coverity[tainted_data_argument]
- if (!DeviceIoControl(hub_handle, IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX, &conn_info, sizeof(conn_info),
- &conn_info, sizeof(conn_info), &size, NULL)) {
- usbi_warn(ctx, "could not get node connection information for device '%s': %s",
- priv->dev_id, windows_error_str(0));
- CloseHandle(hub_handle);
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- if (conn_info.ConnectionStatus == NoDeviceConnected) {
- usbi_err(ctx, "device '%s' is no longer connected!", priv->dev_id);
- CloseHandle(hub_handle);
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- memcpy(&priv->dev_descriptor, &(conn_info.DeviceDescriptor), sizeof(USB_DEVICE_DESCRIPTOR));
- dev->num_configurations = priv->dev_descriptor.bNumConfigurations;
- priv->active_config = conn_info.CurrentConfigurationValue;
- usbi_dbg("found %u configurations (active conf: %u)", dev->num_configurations, priv->active_config);
-
- // Cache as many config descriptors as we can
- cache_config_descriptors(dev, hub_handle);
-
- // In their great wisdom, Microsoft decided to BREAK the USB speed report between Windows 7 and Windows 8
- if (windows_version >= WINDOWS_8) {
- conn_info_v2.ConnectionIndex = (ULONG)port_number;
- conn_info_v2.Length = sizeof(USB_NODE_CONNECTION_INFORMATION_EX_V2);
- conn_info_v2.SupportedUsbProtocols.Usb300 = 1;
- if (!DeviceIoControl(hub_handle, IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2,
- &conn_info_v2, sizeof(conn_info_v2), &conn_info_v2, sizeof(conn_info_v2), &size, NULL)) {
- usbi_warn(ctx, "could not get node connection information (V2) for device '%s': %s",
- priv->dev_id, windows_error_str(0));
- } else if (conn_info_v2.Flags.DeviceIsOperatingAtSuperSpeedOrHigher) {
- conn_info.Speed = 3;
- }
- }
-
- CloseHandle(hub_handle);
-
- if (conn_info.DeviceAddress > UINT8_MAX)
- usbi_err(ctx, "program assertion failed - device address overflow");
-
- dev->device_address = (uint8_t)conn_info.DeviceAddress;
-
- switch (conn_info.Speed) {
- case 0: dev->speed = LIBUSB_SPEED_LOW; break;
- case 1: dev->speed = LIBUSB_SPEED_FULL; break;
- case 2: dev->speed = LIBUSB_SPEED_HIGH; break;
- case 3: dev->speed = LIBUSB_SPEED_SUPER; break;
- default:
- usbi_warn(ctx, "unknown device speed %u", conn_info.Speed);
- break;
- }
- }
-
- r = usbi_sanitize_device(dev);
- if (r)
- return r;
-
- priv->initialized = true;
-
- usbi_dbg("(bus: %u, addr: %u, depth: %u, port: %u): '%s'",
- dev->bus_number, dev->device_address, priv->depth, dev->port_number, priv->dev_id);
-
- return LIBUSB_SUCCESS;
-}
-
-static int enumerate_hcd_root_hub(struct libusb_context *ctx, const char *dev_id,
- uint8_t bus_number, DEVINST devinst)
-{
- struct libusb_device *dev;
- struct winusb_device_priv *priv;
- unsigned long session_id;
- DEVINST child_devinst;
-
- if (CM_Get_Child(&child_devinst, devinst, 0) != CR_SUCCESS) {
- usbi_err(ctx, "could not get child devinst for '%s'", dev_id);
- return LIBUSB_ERROR_OTHER;
- }
-
- session_id = (unsigned long)child_devinst;
- dev = usbi_get_device_by_session_id(ctx, session_id);
- if (dev == NULL) {
- usbi_err(ctx, "program assertion failed - HCD '%s' child not found", dev_id);
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- if (dev->bus_number == 0) {
- // Only do this once
- usbi_dbg("assigning HCD '%s' bus number %u", dev_id, bus_number);
- priv = _device_priv(dev);
- dev->bus_number = bus_number;
- dev->num_configurations = 1;
- priv->dev_descriptor.bLength = LIBUSB_DT_DEVICE_SIZE;
- priv->dev_descriptor.bDescriptorType = LIBUSB_DT_DEVICE;
- priv->dev_descriptor.bDeviceClass = LIBUSB_CLASS_HUB;
- priv->dev_descriptor.bNumConfigurations = 1;
- priv->active_config = 1;
- priv->root_hub = true;
- if (sscanf(dev_id, "PCI\\VEN_%04hx&DEV_%04hx%*s", &priv->dev_descriptor.idVendor, &priv->dev_descriptor.idProduct) != 2) {
- usbi_warn(ctx, "could not infer VID/PID of HCD root hub from '%s'", dev_id);
- priv->dev_descriptor.idVendor = 0x1d6b; // Linux Foundation root hub
- priv->dev_descriptor.idProduct = 1;
- }
- }
-
- libusb_unref_device(dev);
- return LIBUSB_SUCCESS;
-}
-
-// Returns the api type, or 0 if not found/unsupported
-static void get_api_type(struct libusb_context *ctx, HDEVINFO *dev_info,
- SP_DEVINFO_DATA *dev_info_data, int *api, int *sub_api)
-{
- // Precedence for filter drivers vs driver is in the order of this array
- struct driver_lookup lookup[3] = {
- {"\0\0", SPDRP_SERVICE, "driver"},
- {"\0\0", SPDRP_UPPERFILTERS, "upper filter driver"},
- {"\0\0", SPDRP_LOWERFILTERS, "lower filter driver"}
- };
- DWORD size, reg_type;
- unsigned k, l;
- int i, j;
-
- // Check the service & filter names to know the API we should use
- for (k = 0; k < 3; k++) {
- if (pSetupDiGetDeviceRegistryPropertyA(*dev_info, dev_info_data, lookup[k].reg_prop,
- ®_type, (PBYTE)lookup[k].list, MAX_KEY_LENGTH, &size)) {
- // Turn the REG_SZ SPDRP_SERVICE into REG_MULTI_SZ
- if (lookup[k].reg_prop == SPDRP_SERVICE)
- // our buffers are MAX_KEY_LENGTH + 1 so we can overflow if needed
- lookup[k].list[strlen(lookup[k].list) + 1] = 0;
-
- // MULTI_SZ is a pain to work with. Turn it into something much more manageable
- // NB: none of the driver names we check against contain LIST_SEPARATOR,
- // (currently ';'), so even if an unsuported one does, it's not an issue
- for (l = 0; (lookup[k].list[l] != 0) || (lookup[k].list[l + 1] != 0); l++) {
- if (lookup[k].list[l] == 0)
- lookup[k].list[l] = LIST_SEPARATOR;
- }
- usbi_dbg("%s(s): %s", lookup[k].designation, lookup[k].list);
- } else {
- if (GetLastError() != ERROR_INVALID_DATA)
- usbi_dbg("could not access %s: %s", lookup[k].designation, windows_error_str(0));
- lookup[k].list[0] = 0;
- }
- }
-
- for (i = 2; i < USB_API_MAX; i++) {
- for (k = 0; k < 3; k++) {
- j = get_sub_api(lookup[k].list, i);
- if (j >= 0) {
- usbi_dbg("matched %s name against %s", lookup[k].designation,
- (i != USB_API_WINUSBX) ? usb_api_backend[i].designation : usb_api_backend[i].driver_name_list[j]);
- *api = i;
- *sub_api = j;
- return;
- }
- }
- }
-}
-
-static int set_composite_interface(struct libusb_context *ctx, struct libusb_device *dev,
- char *dev_interface_path, char *device_id, int api, int sub_api)
-{
- struct winusb_device_priv *priv = _device_priv(dev);
- int interface_number;
- const char *mi_str;
-
- // Because MI_## are not necessarily in sequential order (some composite
- // devices will have only MI_00 & MI_03 for instance), we retrieve the actual
- // interface number from the path's MI value
- mi_str = strstr(device_id, "MI_");
- if ((mi_str != NULL) && isdigit(mi_str[3]) && isdigit(mi_str[4])) {
- interface_number = ((mi_str[3] - '0') * 10) + (mi_str[4] - '0');
- } else {
- usbi_warn(ctx, "failure to read interface number for %s, using default value", device_id);
- interface_number = 0;
- }
-
- if (interface_number >= USB_MAXINTERFACES) {
- usbi_warn(ctx, "interface %d too large - ignoring interface path %s", interface_number, dev_interface_path);
- return LIBUSB_ERROR_ACCESS;
- }
-
- if (priv->usb_interface[interface_number].path != NULL) {
- if (api == USB_API_HID) {
- // HID devices can have multiple collections (COL##) for each MI_## interface
- usbi_dbg("interface[%d] already set - ignoring HID collection: %s",
- interface_number, device_id);
- return LIBUSB_ERROR_ACCESS;
- }
- // In other cases, just use the latest data
- safe_free(priv->usb_interface[interface_number].path);
- }
-
- usbi_dbg("interface[%d] = %s", interface_number, dev_interface_path);
- priv->usb_interface[interface_number].path = dev_interface_path;
- priv->usb_interface[interface_number].apib = &usb_api_backend[api];
- priv->usb_interface[interface_number].sub_api = sub_api;
- if ((api == USB_API_HID) && (priv->hid == NULL)) {
- priv->hid = calloc(1, sizeof(struct hid_device_priv));
- if (priv->hid == NULL)
- return LIBUSB_ERROR_NO_MEM;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int set_hid_interface(struct libusb_context *ctx, struct libusb_device *dev,
- char *dev_interface_path)
-{
- int i;
- struct winusb_device_priv *priv = _device_priv(dev);
-
- if (priv->hid == NULL) {
- usbi_err(ctx, "program assertion failed: parent is not HID");
- return LIBUSB_ERROR_NO_DEVICE;
- } else if (priv->hid->nb_interfaces == USB_MAXINTERFACES) {
- usbi_err(ctx, "program assertion failed: max USB interfaces reached for HID device");
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- for (i = 0; i < priv->hid->nb_interfaces; i++) {
- if ((priv->usb_interface[i].path != NULL) && strcmp(priv->usb_interface[i].path, dev_interface_path) == 0) {
- usbi_dbg("interface[%d] already set to %s", i, dev_interface_path);
- return LIBUSB_ERROR_ACCESS;
- }
- }
-
- priv->usb_interface[priv->hid->nb_interfaces].path = dev_interface_path;
- priv->usb_interface[priv->hid->nb_interfaces].apib = &usb_api_backend[USB_API_HID];
- usbi_dbg("interface[%u] = %s", priv->hid->nb_interfaces, dev_interface_path);
- priv->hid->nb_interfaces++;
- return LIBUSB_SUCCESS;
-}
-
-/*
- * get_device_list: libusb backend device enumeration function
- */
-static int winusb_get_device_list(struct libusb_context *ctx, struct discovered_devs **_discdevs)
-{
- struct discovered_devs *discdevs;
- HDEVINFO *dev_info, dev_info_intf, dev_info_enum;
- SP_DEVINFO_DATA dev_info_data;
- DWORD _index = 0;
- GUID hid_guid;
- int r = LIBUSB_SUCCESS;
- int api, sub_api;
- unsigned int pass, i, j;
- char enumerator[16];
- char dev_id[MAX_PATH_LENGTH];
- struct libusb_device *dev, *parent_dev;
- struct winusb_device_priv *priv, *parent_priv;
- char *dev_interface_path = NULL;
- unsigned long session_id;
- DWORD size, port_nr, reg_type, install_state;
- HKEY key;
- WCHAR guid_string_w[MAX_GUID_STRING_LENGTH];
- GUID *if_guid;
- LONG s;
-#define HUB_PASS 0
-#define DEV_PASS 1
-#define HCD_PASS 2
-#define GEN_PASS 3
-#define HID_PASS 4
-#define EXT_PASS 5
- // Keep a list of guids that will be enumerated
-#define GUID_SIZE_STEP 8
- const GUID **guid_list, **new_guid_list;
- unsigned int guid_size = GUID_SIZE_STEP;
- unsigned int nb_guids;
- // Keep a list of PnP enumerator strings that are found
- char *usb_enumerator[8] = { "USB" };
- unsigned int nb_usb_enumerators = 1;
- unsigned int usb_enum_index = 0;
- // Keep a list of newly allocated devs to unref
-#define UNREF_SIZE_STEP 16
- libusb_device **unref_list, **new_unref_list;
- unsigned int unref_size = UNREF_SIZE_STEP;
- unsigned int unref_cur = 0;
-
- // PASS 1 : (re)enumerate HCDs (allows for HCD hotplug)
- // PASS 2 : (re)enumerate HUBS
- // PASS 3 : (re)enumerate generic USB devices (including driverless)
- // and list additional USB device interface GUIDs to explore
- // PASS 4 : (re)enumerate master USB devices that have a device interface
- // PASS 5+: (re)enumerate device interfaced GUIDs (including HID) and
- // set the device interfaces.
-
- // Init the GUID table
- guid_list = malloc(guid_size * sizeof(void *));
- if (guid_list == NULL) {
- usbi_err(ctx, "failed to alloc guid list");
- return LIBUSB_ERROR_NO_MEM;
- }
-
- guid_list[HUB_PASS] = &GUID_DEVINTERFACE_USB_HUB;
- guid_list[DEV_PASS] = &GUID_DEVINTERFACE_USB_DEVICE;
- guid_list[HCD_PASS] = &GUID_DEVINTERFACE_USB_HOST_CONTROLLER;
- guid_list[GEN_PASS] = NULL;
- if (api_hid_available) {
- HidD_GetHidGuid(&hid_guid);
- guid_list[HID_PASS] = &hid_guid;
- } else {
- guid_list[HID_PASS] = NULL;
- }
- nb_guids = EXT_PASS;
-
- unref_list = malloc(unref_size * sizeof(void *));
- if (unref_list == NULL) {
- usbi_err(ctx, "failed to alloc unref list");
- free((void *)guid_list);
- return LIBUSB_ERROR_NO_MEM;
- }
-
- dev_info_intf = pSetupDiGetClassDevsA(NULL, NULL, NULL, DIGCF_ALLCLASSES | DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
- if (dev_info_intf == INVALID_HANDLE_VALUE) {
- usbi_err(ctx, "failed to obtain device info list: %s", windows_error_str(0));
- free(unref_list);
- free((void *)guid_list);
- return LIBUSB_ERROR_OTHER;
- }
-
- for (pass = 0; ((pass < nb_guids) && (r == LIBUSB_SUCCESS)); pass++) {
-//#define ENUM_DEBUG
-#if defined(ENABLE_LOGGING) && defined(ENUM_DEBUG)
- const char * const passname[] = {"HUB", "DEV", "HCD", "GEN", "HID", "EXT"};
- usbi_dbg("#### PROCESSING %ss %s", passname[MIN(pass, EXT_PASS)], guid_to_string(guid_list[pass]));
-#endif
- if ((pass == HID_PASS) && (guid_list[HID_PASS] == NULL))
- continue;
-
- dev_info = (pass != GEN_PASS) ? &dev_info_intf : &dev_info_enum;
-
- for (i = 0; ; i++) {
- // safe loop: free up any (unprotected) dynamic resource
- // NB: this is always executed before breaking the loop
- safe_free(dev_interface_path);
- priv = parent_priv = NULL;
- dev = parent_dev = NULL;
-
- // Safe loop: end of loop conditions
- if (r != LIBUSB_SUCCESS)
- break;
-
- if ((pass == HCD_PASS) && (i == UINT8_MAX)) {
- usbi_warn(ctx, "program assertion failed - found more than %u buses, skipping the rest.", UINT8_MAX);
- break;
- }
-
- if (pass != GEN_PASS) {
- // Except for GEN, all passes deal with device interfaces
- r = get_interface_details(ctx, *dev_info, &dev_info_data, guid_list[pass], &_index, &dev_interface_path);
- if ((r != LIBUSB_SUCCESS) || (dev_interface_path == NULL)) {
- _index = 0;
- break;
- }
- } else {
- // Workaround for a Nec/Renesas USB 3.0 driver bug where root hubs are
- // being listed under the "NUSB3" PnP Symbolic Name rather than "USB".
- // The Intel USB 3.0 driver behaves similar, but uses "IUSB3"
- // The Intel Alpine Ridge USB 3.1 driver uses "IARUSB3"
- for (; usb_enum_index < nb_usb_enumerators; usb_enum_index++) {
- if (get_devinfo_data(ctx, dev_info, &dev_info_data, usb_enumerator[usb_enum_index], i))
- break;
- i = 0;
- }
- if (usb_enum_index == nb_usb_enumerators)
- break;
- }
-
- // Read the Device ID path
- if (!pSetupDiGetDeviceInstanceIdA(*dev_info, &dev_info_data, dev_id, sizeof(dev_id), NULL)) {
- usbi_warn(ctx, "could not read the device instance ID for devInst %X, skipping",
- dev_info_data.DevInst);
- continue;
- }
-
-#ifdef ENUM_DEBUG
- usbi_dbg("PRO: %s", dev_id);
-#endif
-
- // Set API to use or get additional data from generic pass
- api = USB_API_UNSUPPORTED;
- sub_api = SUB_API_NOTSET;
- switch (pass) {
- case HCD_PASS:
- break;
- case HUB_PASS:
- api = USB_API_HUB;
- // Fetch the PnP enumerator class for this hub
- // This will allow us to enumerate all classes during the GEN pass
- if (!pSetupDiGetDeviceRegistryPropertyA(*dev_info, &dev_info_data, SPDRP_ENUMERATOR_NAME,
- NULL, (PBYTE)enumerator, sizeof(enumerator), NULL)) {
- usbi_err(ctx, "could not read enumerator string for device '%s': %s", dev_id, windows_error_str(0));
- LOOP_BREAK(LIBUSB_ERROR_OTHER);
- }
- for (j = 0; j < nb_usb_enumerators; j++) {
- if (strcmp(usb_enumerator[j], enumerator) == 0)
- break;
- }
- if (j == nb_usb_enumerators) {
- usbi_dbg("found new PnP enumerator string '%s'", enumerator);
- if (nb_usb_enumerators < ARRAYSIZE(usb_enumerator)) {
- usb_enumerator[nb_usb_enumerators] = _strdup(enumerator);
- if (usb_enumerator[nb_usb_enumerators] != NULL) {
- nb_usb_enumerators++;
- } else {
- usbi_err(ctx, "could not allocate enumerator string '%s'", enumerator);
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- } else {
- usbi_warn(ctx, "too many enumerator strings, some devices may not be accessible");
- }
- }
- break;
- case GEN_PASS:
- // We use the GEN pass to detect driverless devices...
- if (!pSetupDiGetDeviceRegistryPropertyA(*dev_info, &dev_info_data, SPDRP_DRIVER,
- NULL, NULL, 0, NULL) && (GetLastError() != ERROR_INSUFFICIENT_BUFFER)) {
- usbi_info(ctx, "The following device has no driver: '%s'", dev_id);
- usbi_info(ctx, "libusb will not be able to access it");
- }
- // ...and to add the additional device interface GUIDs
- key = pSetupDiOpenDevRegKey(*dev_info, &dev_info_data, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);
- if (key == INVALID_HANDLE_VALUE)
- break;
- // Look for both DeviceInterfaceGUIDs *and* DeviceInterfaceGUID, in that order
- size = sizeof(guid_string_w);
- s = pRegQueryValueExW(key, L"DeviceInterfaceGUIDs", NULL, ®_type,
- (LPBYTE)guid_string_w, &size);
- if (s == ERROR_FILE_NOT_FOUND)
- s = pRegQueryValueExW(key, L"DeviceInterfaceGUID", NULL, ®_type,
- (LPBYTE)guid_string_w, &size);
- pRegCloseKey(key);
- if ((s == ERROR_SUCCESS) &&
- (((reg_type == REG_SZ) && (size == (sizeof(guid_string_w) - sizeof(WCHAR)))) ||
- ((reg_type == REG_MULTI_SZ) && (size == sizeof(guid_string_w))))) {
- if (nb_guids == guid_size) {
- new_guid_list = realloc((void *)guid_list, (guid_size + GUID_SIZE_STEP) * sizeof(void *));
- if (new_guid_list == NULL) {
- usbi_err(ctx, "failed to realloc guid list");
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- guid_list = new_guid_list;
- guid_size += GUID_SIZE_STEP;
- }
- if_guid = malloc(sizeof(*if_guid));
- if (if_guid == NULL) {
- usbi_err(ctx, "failed to alloc if_guid");
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- if (pIIDFromString(guid_string_w, if_guid) != 0) {
- usbi_warn(ctx, "device '%s' has malformed DeviceInterfaceGUID string, skipping", dev_id);
- free(if_guid);
- } else {
- // Check if we've already seen this GUID
- for (j = EXT_PASS; j < nb_guids; j++) {
- if (memcmp(guid_list[j], if_guid, sizeof(*if_guid)) == 0)
- break;
- }
- if (j == nb_guids) {
- usbi_dbg("extra GUID: %s", guid_to_string(if_guid));
- guid_list[nb_guids++] = if_guid;
- } else {
- // Duplicate, ignore
- free(if_guid);
- }
- }
- } else if (s == ERROR_SUCCESS) {
- usbi_warn(ctx, "unexpected type/size of DeviceInterfaceGUID for '%s'", dev_id);
- }
- break;
- case HID_PASS:
- api = USB_API_HID;
- break;
- default:
- // Get the API type (after checking that the driver installation is OK)
- if ((!pSetupDiGetDeviceRegistryPropertyA(*dev_info, &dev_info_data, SPDRP_INSTALL_STATE,
- NULL, (PBYTE)&install_state, sizeof(install_state), &size)) || (size != sizeof(install_state))) {
- usbi_warn(ctx, "could not detect installation state of driver for '%s': %s",
- dev_id, windows_error_str(0));
- } else if (install_state != 0) {
- usbi_warn(ctx, "driver for device '%s' is reporting an issue (code: %u) - skipping",
- dev_id, (unsigned int)install_state);
- continue;
- }
- get_api_type(ctx, dev_info, &dev_info_data, &api, &sub_api);
- break;
- }
-
- // Find parent device (for the passes that need it)
- if (pass >= GEN_PASS) {
- parent_dev = get_ancestor(ctx, dev_info_data.DevInst, NULL);
- if (parent_dev == NULL) {
- // Root hubs will not have a parent
- dev = usbi_get_device_by_session_id(ctx, (unsigned long)dev_info_data.DevInst);
- if (dev != NULL) {
- priv = _device_priv(dev);
- if (priv->root_hub)
- goto track_unref;
- libusb_unref_device(dev);
- }
-
- usbi_dbg("unlisted ancestor for '%s' (non USB HID, newly connected, etc.) - ignoring", dev_id);
- continue;
- }
-
- parent_priv = _device_priv(parent_dev);
- // virtual USB devices are also listed during GEN - don't process these yet
- if ((pass == GEN_PASS) && (parent_priv->apib->id != USB_API_HUB)) {
- libusb_unref_device(parent_dev);
- continue;
- }
- }
-
- // Create new or match existing device, using the devInst as session id
- if ((pass <= GEN_PASS) && (pass != HCD_PASS)) { // For subsequent passes, we'll lookup the parent
- // These are the passes that create "new" devices
- session_id = (unsigned long)dev_info_data.DevInst;
- dev = usbi_get_device_by_session_id(ctx, session_id);
- if (dev == NULL) {
- alloc_device:
- usbi_dbg("allocating new device for session [%lX]", session_id);
- dev = usbi_alloc_device(ctx, session_id);
- if (dev == NULL)
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
-
- priv = winusb_device_priv_init(dev);
- priv->dev_id = _strdup(dev_id);
- if (priv->dev_id == NULL) {
- libusb_unref_device(dev);
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- } else {
- usbi_dbg("found existing device for session [%lX]", session_id);
-
- priv = _device_priv(dev);
- if (strcmp(priv->dev_id, dev_id) != 0) {
- usbi_dbg("device instance ID for session [%lX] changed", session_id);
- usbi_disconnect_device(dev);
- libusb_unref_device(dev);
- goto alloc_device;
- }
- }
-
- track_unref:
- // Keep track of devices that need unref
- if (unref_cur == unref_size) {
- new_unref_list = realloc(unref_list, (unref_size + UNREF_SIZE_STEP) * sizeof(void *));
- if (new_unref_list == NULL) {
- usbi_err(ctx, "could not realloc list for unref - aborting");
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- unref_list = new_unref_list;
- unref_size += UNREF_SIZE_STEP;
- }
- unref_list[unref_cur++] = dev;
- }
-
- // Setup device
- switch (pass) {
- case HUB_PASS:
- case DEV_PASS:
- // If the device has already been setup, don't do it again
- if (priv->path != NULL)
- break;
- // Take care of API initialization
- priv->path = dev_interface_path;
- dev_interface_path = NULL;
- priv->apib = &usb_api_backend[api];
- priv->sub_api = sub_api;
- switch (api) {
- case USB_API_COMPOSITE:
- case USB_API_HUB:
- break;
- case USB_API_HID:
- priv->hid = calloc(1, sizeof(struct hid_device_priv));
- if (priv->hid == NULL)
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- break;
- default:
- // For other devices, the first interface is the same as the device
- priv->usb_interface[0].path = _strdup(priv->path);
- if (priv->usb_interface[0].path == NULL)
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- // The following is needed if we want API calls to work for both simple
- // and composite devices.
- for (j = 0; j < USB_MAXINTERFACES; j++)
- priv->usb_interface[j].apib = &usb_api_backend[api];
- break;
- }
- break;
- case HCD_PASS:
- r = enumerate_hcd_root_hub(ctx, dev_id, (uint8_t)(i + 1), dev_info_data.DevInst);
- break;
- case GEN_PASS:
- // The SPDRP_ADDRESS for USB devices is the device port number on the hub
- port_nr = 0;
- if (!pSetupDiGetDeviceRegistryPropertyA(*dev_info, &dev_info_data, SPDRP_ADDRESS,
- NULL, (PBYTE)&port_nr, sizeof(port_nr), &size) || (size != sizeof(port_nr)))
- usbi_warn(ctx, "could not retrieve port number for device '%s': %s", dev_id, windows_error_str(0));
- r = init_device(dev, parent_dev, (uint8_t)port_nr, dev_info_data.DevInst);
- if (r == LIBUSB_SUCCESS) {
- // Append device to the list of discovered devices
- discdevs = discovered_devs_append(*_discdevs, dev);
- if (!discdevs)
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
-
- *_discdevs = discdevs;
- } else if (r == LIBUSB_ERROR_NO_DEVICE) {
- // This can occur if the device was disconnected but Windows hasn't
- // refreshed its enumeration yet - in that case, we ignore the device
- r = LIBUSB_SUCCESS;
- }
- break;
- default: // HID_PASS and later
- if (parent_priv->apib->id == USB_API_HID || parent_priv->apib->id == USB_API_COMPOSITE) {
- if (parent_priv->apib->id == USB_API_HID) {
- usbi_dbg("setting HID interface for [%lX]:", parent_dev->session_data);
- r = set_hid_interface(ctx, parent_dev, dev_interface_path);
- } else {
- usbi_dbg("setting composite interface for [%lX]:", parent_dev->session_data);
- r = set_composite_interface(ctx, parent_dev, dev_interface_path, dev_id, api, sub_api);
- }
- switch (r) {
- case LIBUSB_SUCCESS:
- dev_interface_path = NULL;
- break;
- case LIBUSB_ERROR_ACCESS:
- // interface has already been set => make sure dev_interface_path is freed then
- r = LIBUSB_SUCCESS;
- break;
- default:
- LOOP_BREAK(r);
- break;
- }
- }
- libusb_unref_device(parent_dev);
- break;
- }
- }
- }
-
- pSetupDiDestroyDeviceInfoList(dev_info_intf);
-
- // Free any additional GUIDs
- for (pass = EXT_PASS; pass < nb_guids; pass++)
- free((void *)guid_list[pass]);
- free((void *)guid_list);
-
- // Free any PnP enumerator strings
- for (i = 1; i < nb_usb_enumerators; i++)
- free(usb_enumerator[i]);
-
- // Unref newly allocated devs
- for (i = 0; i < unref_cur; i++)
- libusb_unref_device(unref_list[i]);
- free(unref_list);
-
- return r;
-}
-
-static int winusb_get_device_descriptor(struct libusb_device *dev, unsigned char *buffer)
-{
- struct winusb_device_priv *priv = _device_priv(dev);
-
- memcpy(buffer, &priv->dev_descriptor, DEVICE_DESC_LENGTH);
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len)
-{
- struct winusb_device_priv *priv = _device_priv(dev);
- PUSB_CONFIGURATION_DESCRIPTOR config_header;
- size_t size;
-
- // config index is zero based
- if (config_index >= dev->num_configurations)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- if ((priv->config_descriptor == NULL) || (priv->config_descriptor[config_index] == NULL))
- return LIBUSB_ERROR_NOT_FOUND;
-
- config_header = priv->config_descriptor[config_index];
-
- size = MIN(config_header->wTotalLength, len);
- memcpy(buffer, priv->config_descriptor[config_index], size);
- return (int)size;
-}
-
-static int winusb_get_config_descriptor_by_value(struct libusb_device *dev, uint8_t bConfigurationValue,
- unsigned char **buffer)
-{
- struct winusb_device_priv *priv = _device_priv(dev);
- PUSB_CONFIGURATION_DESCRIPTOR config_header;
- uint8_t index;
-
- if (priv->config_descriptor == NULL)
- return LIBUSB_ERROR_NOT_FOUND;
-
- for (index = 0; index < dev->num_configurations; index++) {
- config_header = priv->config_descriptor[index];
- if (config_header == NULL)
- continue;
- if (config_header->bConfigurationValue == bConfigurationValue) {
- *buffer = (unsigned char *)priv->config_descriptor[index];
- return (int)config_header->wTotalLength;
- }
- }
-
- return LIBUSB_ERROR_NOT_FOUND;
-}
-
-/*
- * return the cached copy of the active config descriptor
- */
-static int winusb_get_active_config_descriptor(struct libusb_device *dev, unsigned char *buffer, size_t len)
-{
- struct winusb_device_priv *priv = _device_priv(dev);
- unsigned char *config_desc;
- int r;
-
- if (priv->active_config == 0)
- return LIBUSB_ERROR_NOT_FOUND;
-
- r = winusb_get_config_descriptor_by_value(dev, priv->active_config, &config_desc);
- if (r < 0)
- return r;
-
- len = MIN((size_t)r, len);
- memcpy(buffer, config_desc, len);
- return (int)len;
-}
-
-static int winusb_open(struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->apib, open);
-
- return priv->apib->open(SUB_API_NOTSET, dev_handle);
-}
-
-static void winusb_close(struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- if (priv->apib->close)
- priv->apib->close(SUB_API_NOTSET, dev_handle);
-}
-
-static int winusb_get_configuration(struct libusb_device_handle *dev_handle, int *config)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- if (priv->active_config == 0) {
- *config = 0;
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- *config = priv->active_config;
- return LIBUSB_SUCCESS;
-}
-
-/*
- * from http://msdn.microsoft.com/en-us/library/ms793522.aspx: "The port driver
- * does not currently expose a service that allows higher-level drivers to set
- * the configuration."
- */
-static int winusb_set_configuration(struct libusb_device_handle *dev_handle, int config)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int r = LIBUSB_SUCCESS;
-
- if (config >= USB_MAXCONFIG)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- r = libusb_control_transfer(dev_handle, LIBUSB_ENDPOINT_OUT |
- LIBUSB_REQUEST_TYPE_STANDARD | LIBUSB_RECIPIENT_DEVICE,
- LIBUSB_REQUEST_SET_CONFIGURATION, (uint16_t)config,
- 0, NULL, 0, 1000);
-
- if (r == LIBUSB_SUCCESS)
- priv->active_config = (uint8_t)config;
-
- return r;
-}
-
-static int winusb_claim_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int r;
-
- CHECK_SUPPORTED_API(priv->apib, claim_interface);
-
- safe_free(priv->usb_interface[iface].endpoint);
- priv->usb_interface[iface].nb_endpoints = 0;
-
- r = priv->apib->claim_interface(SUB_API_NOTSET, dev_handle, iface);
-
- if (r == LIBUSB_SUCCESS)
- r = windows_assign_endpoints(dev_handle, iface, 0);
-
- return r;
-}
-
-static int winusb_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int r;
-
- CHECK_SUPPORTED_API(priv->apib, set_interface_altsetting);
-
- safe_free(priv->usb_interface[iface].endpoint);
- priv->usb_interface[iface].nb_endpoints = 0;
-
- r = priv->apib->set_interface_altsetting(SUB_API_NOTSET, dev_handle, iface, altsetting);
-
- if (r == LIBUSB_SUCCESS)
- r = windows_assign_endpoints(dev_handle, iface, altsetting);
-
- return r;
-}
-
-static int winusb_release_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->apib, release_interface);
-
- return priv->apib->release_interface(SUB_API_NOTSET, dev_handle, iface);
-}
-
-static int winusb_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->apib, clear_halt);
-
- return priv->apib->clear_halt(SUB_API_NOTSET, dev_handle, endpoint);
-}
-
-static int winusb_reset_device(struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->apib, reset_device);
-
- return priv->apib->reset_device(SUB_API_NOTSET, dev_handle);
-}
-
-static void winusb_destroy_device(struct libusb_device *dev)
-{
- winusb_device_priv_release(dev);
-}
-
-static void winusb_clear_transfer_priv(struct usbi_transfer *itransfer)
-{
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
-
- usbi_close(transfer_priv->pollable_fd.fd);
- transfer_priv->pollable_fd = INVALID_WINFD;
- transfer_priv->handle = NULL;
- safe_free(transfer_priv->hid_buffer);
- safe_free(transfer_priv->iso_context);
-
- // When auto claim is in use, attempt to release the auto-claimed interface
- auto_release(itransfer);
-}
-
-static int do_submit_transfer(struct usbi_transfer *itransfer, short events,
- int (*transfer_fn)(int, struct usbi_transfer *))
-{
- struct libusb_context *ctx = ITRANSFER_CTX(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winfd wfd;
- int r;
-
- wfd = usbi_create_fd();
- if (wfd.fd < 0)
- return LIBUSB_ERROR_NO_MEM;
-
- r = usbi_add_pollfd(ctx, wfd.fd, events);
- if (r) {
- usbi_close(wfd.fd);
- return r;
- }
-
- // Use transfer_priv to store data needed for async polling
- transfer_priv->pollable_fd = wfd;
-
- r = transfer_fn(SUB_API_NOTSET, itransfer);
-
- if ((r != LIBUSB_SUCCESS) && (r != LIBUSB_ERROR_OVERFLOW)) {
- usbi_remove_pollfd(ctx, wfd.fd);
- usbi_close(wfd.fd);
- transfer_priv->pollable_fd = INVALID_WINFD;
- }
-
- return r;
-}
-
-static int winusb_submit_transfer(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int (*transfer_fn)(int, struct usbi_transfer *);
- short events;
-
- switch (transfer->type) {
- case LIBUSB_TRANSFER_TYPE_CONTROL:
- events = (transfer->buffer[0] & LIBUSB_ENDPOINT_IN) ? POLLIN : POLLOUT;
- transfer_fn = priv->apib->submit_control_transfer;
- break;
- case LIBUSB_TRANSFER_TYPE_BULK:
- case LIBUSB_TRANSFER_TYPE_INTERRUPT:
- if (IS_XFEROUT(transfer) && (transfer->flags & LIBUSB_TRANSFER_ADD_ZERO_PACKET))
- return LIBUSB_ERROR_NOT_SUPPORTED;
- events = IS_XFERIN(transfer) ? POLLIN : POLLOUT;
- transfer_fn = priv->apib->submit_bulk_transfer;
- break;
- case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
- events = IS_XFERIN(transfer) ? POLLIN : POLLOUT;
- transfer_fn = priv->apib->submit_iso_transfer;
- break;
- case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
- return LIBUSB_ERROR_NOT_SUPPORTED;
- default:
- usbi_err(TRANSFER_CTX(transfer), "unknown endpoint type %d", transfer->type);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- if (transfer_fn == NULL) {
- usbi_warn(TRANSFER_CTX(transfer),
- "unsupported transfer type %d (unrecognized device driver)",
- transfer->type);
- return LIBUSB_ERROR_NOT_SUPPORTED;
- }
-
- return do_submit_transfer(itransfer, events, transfer_fn);
-}
-
-static int windows_abort_control(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->apib, abort_control);
-
- return priv->apib->abort_control(SUB_API_NOTSET, itransfer);
-}
-
-static int windows_abort_transfers(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->apib, abort_transfers);
-
- return priv->apib->abort_transfers(SUB_API_NOTSET, itransfer);
-}
-
-static int winusb_cancel_transfer(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
-
- switch (transfer->type) {
- case LIBUSB_TRANSFER_TYPE_CONTROL:
- return windows_abort_control(itransfer);
- case LIBUSB_TRANSFER_TYPE_BULK:
- case LIBUSB_TRANSFER_TYPE_INTERRUPT:
- case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
- return windows_abort_transfers(itransfer);
- case LIBUSB_TRANSFER_TYPE_BULK_STREAM:
- return LIBUSB_ERROR_NOT_SUPPORTED;
- default:
- usbi_err(ITRANSFER_CTX(itransfer), "unknown endpoint type %d", transfer->type);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-}
-
-static int winusb_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- return priv->apib->copy_transfer_data(SUB_API_NOTSET, itransfer, io_size);
-}
-
-static int winusb_get_transfer_fd(struct usbi_transfer *itransfer)
-{
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- return transfer_priv->pollable_fd.fd;
-}
-
-static void winusb_get_overlapped_result(struct usbi_transfer *itransfer,
- DWORD *io_result, DWORD *io_size)
-{
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winfd *pollable_fd = &transfer_priv->pollable_fd;
-
- if (HasOverlappedIoCompletedSync(pollable_fd->overlapped)) {
- *io_result = NO_ERROR;
- *io_size = (DWORD)pollable_fd->overlapped->InternalHigh;
- } else if (GetOverlappedResult(transfer_priv->handle, pollable_fd->overlapped, io_size, FALSE)) {
- // Regular async overlapped
- *io_result = NO_ERROR;
- } else {
- *io_result = GetLastError();
- }
-}
-
-// NB: MSVC6 does not support named initializers.
-const struct windows_backend winusb_backend = {
- winusb_init,
- winusb_exit,
- winusb_get_device_list,
- winusb_open,
- winusb_close,
- winusb_get_device_descriptor,
- winusb_get_active_config_descriptor,
- winusb_get_config_descriptor,
- winusb_get_config_descriptor_by_value,
- winusb_get_configuration,
- winusb_set_configuration,
- winusb_claim_interface,
- winusb_release_interface,
- winusb_set_interface_altsetting,
- winusb_clear_halt,
- winusb_reset_device,
- winusb_destroy_device,
- winusb_submit_transfer,
- winusb_cancel_transfer,
- winusb_clear_transfer_priv,
- winusb_copy_transfer_data,
- winusb_get_transfer_fd,
- winusb_get_overlapped_result,
-};
-
-/*
- * USB API backends
- */
-
-static const char * const composite_driver_names[] = {"USBCCGP"};
-static const char * const winusbx_driver_names[] = {"libusbK", "libusb0", "WinUSB"};
-static const char * const hid_driver_names[] = {"HIDUSB", "MOUHID", "KBDHID"};
-const struct windows_usb_api_backend usb_api_backend[USB_API_MAX] = {
- {
- USB_API_UNSUPPORTED,
- "Unsupported API",
- // No supported operations
- },
- {
- USB_API_HUB,
- "HUB API",
- // No supported operations
- },
- {
- USB_API_COMPOSITE,
- "Composite API",
- composite_driver_names,
- ARRAYSIZE(composite_driver_names),
- NULL, /* init */
- NULL, /* exit */
- composite_open,
- composite_close,
- NULL, /* configure_endpoints */
- composite_claim_interface,
- composite_set_interface_altsetting,
- composite_release_interface,
- composite_clear_halt,
- composite_reset_device,
- composite_submit_bulk_transfer,
- composite_submit_iso_transfer,
- composite_submit_control_transfer,
- composite_abort_control,
- composite_abort_transfers,
- composite_copy_transfer_data,
- },
- {
- USB_API_WINUSBX,
- "WinUSB-like APIs",
- winusbx_driver_names,
- ARRAYSIZE(winusbx_driver_names),
- winusbx_init,
- winusbx_exit,
- winusbx_open,
- winusbx_close,
- winusbx_configure_endpoints,
- winusbx_claim_interface,
- winusbx_set_interface_altsetting,
- winusbx_release_interface,
- winusbx_clear_halt,
- winusbx_reset_device,
- winusbx_submit_bulk_transfer,
- winusbx_submit_iso_transfer,
- winusbx_submit_control_transfer,
- winusbx_abort_control,
- winusbx_abort_transfers,
- winusbx_copy_transfer_data,
- },
- {
- USB_API_HID,
- "HID API",
- hid_driver_names,
- ARRAYSIZE(hid_driver_names),
- hid_init,
- hid_exit,
- hid_open,
- hid_close,
- NULL, /* configure_endpoints */
- hid_claim_interface,
- hid_set_interface_altsetting,
- hid_release_interface,
- hid_clear_halt,
- hid_reset_device,
- hid_submit_bulk_transfer,
- NULL, /* submit_iso_transfer */
- hid_submit_control_transfer,
- hid_abort_transfers,
- hid_abort_transfers,
- hid_copy_transfer_data,
- },
-};
-
-
-/*
- * WinUSB-like (WinUSB, libusb0/libusbK through libusbk DLL) API functions
- */
-#define WinUSBX_Set(fn) \
- do { \
- if (native_winusb) \
- WinUSBX[i].fn = (WinUsb_##fn##_t)GetProcAddress(h, "WinUsb_" #fn); \
- else \
- pLibK_GetProcAddress((PVOID *)&WinUSBX[i].fn, i, KUSB_FNID_##fn); \
- } while (0)
-
-static int winusbx_init(struct libusb_context *ctx)
-{
- HMODULE h;
- bool native_winusb;
- int i;
- KLIB_VERSION LibK_Version;
- LibK_GetProcAddress_t pLibK_GetProcAddress = NULL;
- LibK_GetVersion_t pLibK_GetVersion;
-
- h = LoadLibraryA("libusbK");
-
- if (h == NULL) {
- usbi_info(ctx, "libusbK DLL is not available, will use native WinUSB");
- h = LoadLibraryA("WinUSB");
-
- if (h == NULL) {
- usbi_warn(ctx, "WinUSB DLL is not available either, "
- "you will not be able to access devices outside of enumeration");
- return LIBUSB_ERROR_NOT_FOUND;
- }
- } else {
- usbi_dbg("using libusbK DLL for universal access");
- pLibK_GetVersion = (LibK_GetVersion_t)GetProcAddress(h, "LibK_GetVersion");
- if (pLibK_GetVersion != NULL) {
- pLibK_GetVersion(&LibK_Version);
- usbi_dbg("libusbK version: %d.%d.%d.%d", LibK_Version.Major, LibK_Version.Minor,
- LibK_Version.Micro, LibK_Version.Nano);
- }
- pLibK_GetProcAddress = (LibK_GetProcAddress_t)GetProcAddress(h, "LibK_GetProcAddress");
- if (pLibK_GetProcAddress == NULL) {
- usbi_err(ctx, "LibK_GetProcAddress() not found in libusbK DLL");
- FreeLibrary(h);
- return LIBUSB_ERROR_NOT_FOUND;
- }
- }
-
- native_winusb = (pLibK_GetProcAddress == NULL);
- for (i = 0; i < SUB_API_MAX; i++) {
- WinUSBX_Set(AbortPipe);
- WinUSBX_Set(ControlTransfer);
- WinUSBX_Set(FlushPipe);
- WinUSBX_Set(Free);
- WinUSBX_Set(GetAssociatedInterface);
- WinUSBX_Set(Initialize);
- WinUSBX_Set(ReadPipe);
- if (!native_winusb)
- WinUSBX_Set(ResetDevice);
- WinUSBX_Set(ResetPipe);
- WinUSBX_Set(SetCurrentAlternateSetting);
- WinUSBX_Set(SetPipePolicy);
- WinUSBX_Set(WritePipe);
- WinUSBX_Set(IsoReadPipe);
- WinUSBX_Set(IsoWritePipe);
-
- if (WinUSBX[i].Initialize != NULL) {
- WinUSBX[i].initialized = true;
- // Assume driver supports CancelIoEx() if it is available
- WinUSBX[i].CancelIoEx_supported = (pCancelIoEx != NULL);
- usbi_dbg("initalized sub API %s", winusbx_driver_names[i]);
- } else {
- usbi_warn(ctx, "Failed to initalize sub API %s", winusbx_driver_names[i]);
- WinUSBX[i].initialized = false;
- }
- }
-
- WinUSBX_handle = h;
- return LIBUSB_SUCCESS;
-}
-
-static void winusbx_exit(void)
-{
- if (WinUSBX_handle != NULL) {
- FreeLibrary(WinUSBX_handle);
- WinUSBX_handle = NULL;
-
- /* Reset the WinUSBX API structures */
- memset(&WinUSBX, 0, sizeof(WinUSBX));
- }
-}
-
-// NB: open and close must ensure that they only handle interface of
-// the right API type, as these functions can be called wholesale from
-// composite_open(), with interfaces belonging to different APIs
-static int winusbx_open(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- HANDLE file_handle;
- int i;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- // WinUSB requires a separate handle for each interface
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if ((priv->usb_interface[i].path != NULL)
- && (priv->usb_interface[i].apib->id == USB_API_WINUSBX)) {
- file_handle = CreateFileA(priv->usb_interface[i].path, GENERIC_WRITE | GENERIC_READ, FILE_SHARE_WRITE | FILE_SHARE_READ,
- NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
- if (file_handle == INVALID_HANDLE_VALUE) {
- usbi_err(ctx, "could not open device %s (interface %d): %s", priv->usb_interface[i].path, i, windows_error_str(0));
- switch (GetLastError()) {
- case ERROR_FILE_NOT_FOUND: // The device was disconnected
- return LIBUSB_ERROR_NO_DEVICE;
- case ERROR_ACCESS_DENIED:
- return LIBUSB_ERROR_ACCESS;
- default:
- return LIBUSB_ERROR_IO;
- }
- }
- handle_priv->interface_handle[i].dev_handle = file_handle;
- }
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static void winusbx_close(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE handle;
- int i;
-
- if (sub_api == SUB_API_NOTSET)
- sub_api = priv->sub_api;
-
- if (!WinUSBX[sub_api].initialized)
- return;
-
- if (priv->apib->id == USB_API_COMPOSITE) {
- // If this is a composite device, just free and close all WinUSB-like
- // interfaces directly (each is independent and not associated with another)
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if (priv->usb_interface[i].apib->id == USB_API_WINUSBX) {
- handle = handle_priv->interface_handle[i].api_handle;
- if (HANDLE_VALID(handle))
- WinUSBX[sub_api].Free(handle);
-
- handle = handle_priv->interface_handle[i].dev_handle;
- if (HANDLE_VALID(handle))
- CloseHandle(handle);
- }
- }
- } else {
- // If this is a WinUSB device, free all interfaces above interface 0,
- // then free and close interface 0 last
- for (i = 1; i < USB_MAXINTERFACES; i++) {
- handle = handle_priv->interface_handle[i].api_handle;
- if (HANDLE_VALID(handle))
- WinUSBX[sub_api].Free(handle);
- }
- handle = handle_priv->interface_handle[0].api_handle;
- if (HANDLE_VALID(handle))
- WinUSBX[sub_api].Free(handle);
-
- handle = handle_priv->interface_handle[0].dev_handle;
- if (HANDLE_VALID(handle))
- CloseHandle(handle);
- }
-}
-
-static int winusbx_configure_endpoints(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE winusb_handle = handle_priv->interface_handle[iface].api_handle;
- UCHAR policy;
- ULONG timeout = 0;
- uint8_t endpoint_address;
- int i;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- // With handle and enpoints set (in parent), we can setup the default pipe properties
- // see http://download.microsoft.com/download/D/1/D/D1DD7745-426B-4CC3-A269-ABBBE427C0EF/DVC-T705_DDC08.pptx
- for (i = -1; i < priv->usb_interface[iface].nb_endpoints; i++) {
- endpoint_address = (i == -1) ? 0 : priv->usb_interface[iface].endpoint[i];
- if (!WinUSBX[sub_api].SetPipePolicy(winusb_handle, endpoint_address,
- PIPE_TRANSFER_TIMEOUT, sizeof(ULONG), &timeout))
- usbi_dbg("failed to set PIPE_TRANSFER_TIMEOUT for control endpoint %02X", endpoint_address);
-
- if ((i == -1) || (sub_api == SUB_API_LIBUSB0))
- continue; // Other policies don't apply to control endpoint or libusb0
-
- policy = false;
- if (!WinUSBX[sub_api].SetPipePolicy(winusb_handle, endpoint_address,
- SHORT_PACKET_TERMINATE, sizeof(UCHAR), &policy))
- usbi_dbg("failed to disable SHORT_PACKET_TERMINATE for endpoint %02X", endpoint_address);
-
- if (!WinUSBX[sub_api].SetPipePolicy(winusb_handle, endpoint_address,
- IGNORE_SHORT_PACKETS, sizeof(UCHAR), &policy))
- usbi_dbg("failed to disable IGNORE_SHORT_PACKETS for endpoint %02X", endpoint_address);
-
- policy = true;
- /* ALLOW_PARTIAL_READS must be enabled due to likely libusbK bug. See:
- https://sourceforge.net/mailarchive/message.php?msg_id=29736015 */
- if (!WinUSBX[sub_api].SetPipePolicy(winusb_handle, endpoint_address,
- ALLOW_PARTIAL_READS, sizeof(UCHAR), &policy))
- usbi_dbg("failed to enable ALLOW_PARTIAL_READS for endpoint %02X", endpoint_address);
-
- if (!WinUSBX[sub_api].SetPipePolicy(winusb_handle, endpoint_address,
- AUTO_CLEAR_STALL, sizeof(UCHAR), &policy))
- usbi_dbg("failed to enable AUTO_CLEAR_STALL for endpoint %02X", endpoint_address);
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_claim_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- bool is_using_usbccgp = (priv->apib->id == USB_API_COMPOSITE);
- SP_DEVICE_INTERFACE_DETAIL_DATA_A *dev_interface_details = NULL;
- HDEVINFO dev_info = INVALID_HANDLE_VALUE;
- SP_DEVINFO_DATA dev_info_data;
- char *dev_path_no_guid = NULL;
- char filter_path[] = "\\\\.\\libusb0-0000";
- bool found_filter = false;
- HANDLE file_handle, winusb_handle;
- DWORD err;
- int i;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- // If the device is composite, but using the default Windows composite parent driver (usbccgp)
- // or if it's the first WinUSB-like interface, we get a handle through Initialize().
- if ((is_using_usbccgp) || (iface == 0)) {
- // composite device (independent interfaces) or interface 0
- file_handle = handle_priv->interface_handle[iface].dev_handle;
- if (!HANDLE_VALID(file_handle))
- return LIBUSB_ERROR_NOT_FOUND;
-
- if (!WinUSBX[sub_api].Initialize(file_handle, &winusb_handle)) {
- handle_priv->interface_handle[iface].api_handle = INVALID_HANDLE_VALUE;
- err = GetLastError();
- switch (err) {
- case ERROR_BAD_COMMAND:
- // The device was disconnected
- usbi_err(ctx, "could not access interface %d: %s", iface, windows_error_str(0));
- return LIBUSB_ERROR_NO_DEVICE;
- default:
- // it may be that we're using the libusb0 filter driver.
- // TODO: can we move this whole business into the K/0 DLL?
- for (i = 0; ; i++) {
- safe_free(dev_interface_details);
- safe_free(dev_path_no_guid);
-
- dev_interface_details = get_interface_details_filter(ctx, &dev_info, &dev_info_data, &GUID_DEVINTERFACE_LIBUSB0_FILTER, i, filter_path);
- if ((found_filter) || (dev_interface_details == NULL))
- break;
-
- // ignore GUID part
- dev_path_no_guid = sanitize_path(strtok(dev_interface_details->DevicePath, "{"));
- if (dev_path_no_guid == NULL)
- continue;
-
- if (strncmp(dev_path_no_guid, priv->usb_interface[iface].path, strlen(dev_path_no_guid)) == 0) {
- file_handle = CreateFileA(filter_path, GENERIC_WRITE | GENERIC_READ, FILE_SHARE_WRITE | FILE_SHARE_READ,
- NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
- if (file_handle != INVALID_HANDLE_VALUE) {
- if (WinUSBX[sub_api].Initialize(file_handle, &winusb_handle)) {
- // Replace the existing file handle with the working one
- CloseHandle(handle_priv->interface_handle[iface].dev_handle);
- handle_priv->interface_handle[iface].dev_handle = file_handle;
- found_filter = true;
- } else {
- usbi_err(ctx, "could not initialize filter driver for %s", filter_path);
- CloseHandle(file_handle);
- }
- } else {
- usbi_err(ctx, "could not open device %s: %s", filter_path, windows_error_str(0));
- }
- }
- }
- free(dev_interface_details);
- if (!found_filter) {
- usbi_err(ctx, "could not access interface %d: %s", iface, windows_error_str(err));
- return LIBUSB_ERROR_ACCESS;
- }
- }
- }
- handle_priv->interface_handle[iface].api_handle = winusb_handle;
- } else {
- // For all other interfaces, use GetAssociatedInterface()
- winusb_handle = handle_priv->interface_handle[0].api_handle;
- // It is a requirement for multiple interface devices on Windows that, to you
- // must first claim the first interface before you claim the others
- if (!HANDLE_VALID(winusb_handle)) {
- file_handle = handle_priv->interface_handle[0].dev_handle;
- if (WinUSBX[sub_api].Initialize(file_handle, &winusb_handle)) {
- handle_priv->interface_handle[0].api_handle = winusb_handle;
- usbi_warn(ctx, "auto-claimed interface 0 (required to claim %d with WinUSB)", iface);
- } else {
- usbi_warn(ctx, "failed to auto-claim interface 0 (required to claim %d with WinUSB): %s", iface, windows_error_str(0));
- return LIBUSB_ERROR_ACCESS;
- }
- }
- if (!WinUSBX[sub_api].GetAssociatedInterface(winusb_handle, (UCHAR)(iface - 1),
- &handle_priv->interface_handle[iface].api_handle)) {
- handle_priv->interface_handle[iface].api_handle = INVALID_HANDLE_VALUE;
- switch (GetLastError()) {
- case ERROR_NO_MORE_ITEMS: // invalid iface
- return LIBUSB_ERROR_NOT_FOUND;
- case ERROR_BAD_COMMAND: // The device was disconnected
- return LIBUSB_ERROR_NO_DEVICE;
- case ERROR_ALREADY_EXISTS: // already claimed
- return LIBUSB_ERROR_BUSY;
- default:
- usbi_err(ctx, "could not claim interface %d: %s", iface, windows_error_str(0));
- return LIBUSB_ERROR_ACCESS;
- }
- }
- }
- usbi_dbg("claimed interface %d", iface);
- handle_priv->active_interface = iface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_release_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE winusb_handle;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- winusb_handle = handle_priv->interface_handle[iface].api_handle;
- if (!HANDLE_VALID(winusb_handle))
- return LIBUSB_ERROR_NOT_FOUND;
-
- WinUSBX[sub_api].Free(winusb_handle);
- handle_priv->interface_handle[iface].api_handle = INVALID_HANDLE_VALUE;
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * Return the first valid interface (of the same API type), for control transfers
- */
-static int get_valid_interface(struct libusb_device_handle *dev_handle, int api_id)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int i;
-
- if ((api_id < USB_API_WINUSBX) || (api_id > USB_API_HID)) {
- usbi_dbg("unsupported API ID");
- return -1;
- }
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if (HANDLE_VALID(handle_priv->interface_handle[i].dev_handle)
- && HANDLE_VALID(handle_priv->interface_handle[i].api_handle)
- && (priv->usb_interface[i].apib->id == api_id))
- return i;
- }
-
- return -1;
-}
-
-/*
- * Lookup interface by endpoint address. -1 if not found
- */
-static int interface_by_endpoint(struct winusb_device_priv *priv,
- struct winusb_device_handle_priv *handle_priv, uint8_t endpoint_address)
-{
- int i, j;
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if (!HANDLE_VALID(handle_priv->interface_handle[i].api_handle))
- continue;
- if (priv->usb_interface[i].endpoint == NULL)
- continue;
- for (j = 0; j < priv->usb_interface[i].nb_endpoints; j++) {
- if (priv->usb_interface[i].endpoint[j] == endpoint_address)
- return i;
- }
- }
-
- return -1;
-}
-
-static int winusbx_submit_control_transfer(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- PWINUSB_SETUP_PACKET setup = (PWINUSB_SETUP_PACKET)transfer->buffer;
- ULONG size;
- HANDLE winusb_handle;
- OVERLAPPED *overlapped;
- int current_interface;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- size = transfer->length - LIBUSB_CONTROL_SETUP_SIZE;
-
- // Windows places upper limits on the control transfer size
- // See: https://msdn.microsoft.com/en-us/library/windows/hardware/ff538112.aspx
- if (size > MAX_CTRL_BUFFER_LENGTH)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- current_interface = get_valid_interface(transfer->dev_handle, USB_API_WINUSBX);
- if (current_interface < 0) {
- if (auto_claim(transfer, ¤t_interface, USB_API_WINUSBX) != LIBUSB_SUCCESS)
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("will use interface %d", current_interface);
-
- transfer_priv->handle = winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
- overlapped = transfer_priv->pollable_fd.overlapped;
-
- // Sending of set configuration control requests from WinUSB creates issues
- if ((LIBUSB_REQ_TYPE(setup->RequestType) == LIBUSB_REQUEST_TYPE_STANDARD)
- && (setup->Request == LIBUSB_REQUEST_SET_CONFIGURATION)) {
- if (setup->Value != priv->active_config) {
- usbi_warn(ctx, "cannot set configuration other than the default one");
- return LIBUSB_ERROR_INVALID_PARAM;
- }
- windows_force_sync_completion(overlapped, 0);
- } else {
- if (!WinUSBX[sub_api].ControlTransfer(winusb_handle, *setup, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, size, NULL, overlapped)) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_warn(ctx, "ControlTransfer failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_IO;
- }
- } else {
- windows_force_sync_completion(overlapped, size);
- }
- }
-
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_set_interface_altsetting(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE winusb_handle;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- if (altsetting > 255)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- winusb_handle = handle_priv->interface_handle[iface].api_handle;
- if (!HANDLE_VALID(winusb_handle)) {
- usbi_err(ctx, "interface must be claimed first");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- if (!WinUSBX[sub_api].SetCurrentAlternateSetting(winusb_handle, (UCHAR)altsetting)) {
- usbi_err(ctx, "SetCurrentAlternateSetting failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_IO;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_submit_iso_transfer(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- HANDLE winusb_handle;
- OVERLAPPED *overlapped;
- bool ret;
- int current_interface;
- int i;
- UINT offset;
- PKISO_CONTEXT iso_context;
- size_t iso_ctx_size;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- if ((sub_api != SUB_API_LIBUSBK) && (sub_api != SUB_API_LIBUSB0)) {
- // iso only supported on libusbk-based backends
- PRINT_UNSUPPORTED_API(submit_iso_transfer);
- return LIBUSB_ERROR_NOT_SUPPORTED;
- };
-
- current_interface = interface_by_endpoint(priv, handle_priv, transfer->endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cancelling transfer");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("matched endpoint %02X with interface %d", transfer->endpoint, current_interface);
-
- transfer_priv->handle = winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
- overlapped = transfer_priv->pollable_fd.overlapped;
-
- iso_ctx_size = sizeof(KISO_CONTEXT) + (transfer->num_iso_packets * sizeof(KISO_PACKET));
- transfer_priv->iso_context = iso_context = calloc(1, iso_ctx_size);
- if (transfer_priv->iso_context == NULL)
- return LIBUSB_ERROR_NO_MEM;
-
- // start ASAP
- iso_context->StartFrame = 0;
- iso_context->NumberOfPackets = (SHORT)transfer->num_iso_packets;
-
- // convert the transfer packet lengths to iso_packet offsets
- offset = 0;
- for (i = 0; i < transfer->num_iso_packets; i++) {
- iso_context->IsoPackets[i].offset = offset;
- offset += transfer->iso_packet_desc[i].length;
- }
-
- if (IS_XFERIN(transfer)) {
- usbi_dbg("reading %d iso packets", transfer->num_iso_packets);
- ret = WinUSBX[sub_api].IsoReadPipe(winusb_handle, transfer->endpoint, transfer->buffer, transfer->length, overlapped, iso_context);
- } else {
- usbi_dbg("writing %d iso packets", transfer->num_iso_packets);
- ret = WinUSBX[sub_api].IsoWritePipe(winusb_handle, transfer->endpoint, transfer->buffer, transfer->length, overlapped, iso_context);
- }
-
- if (!ret) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_err(ctx, "IsoReadPipe/IsoWritePipe failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_IO;
- }
- } else {
- windows_force_sync_completion(overlapped, (ULONG)transfer->length);
- }
-
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_submit_bulk_transfer(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- HANDLE winusb_handle;
- OVERLAPPED *overlapped;
- bool ret;
- int current_interface;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- current_interface = interface_by_endpoint(priv, handle_priv, transfer->endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cancelling transfer");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("matched endpoint %02X with interface %d", transfer->endpoint, current_interface);
-
- transfer_priv->handle = winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
- overlapped = transfer_priv->pollable_fd.overlapped;
-
- if (IS_XFERIN(transfer)) {
- usbi_dbg("reading %d bytes", transfer->length);
- ret = WinUSBX[sub_api].ReadPipe(winusb_handle, transfer->endpoint, transfer->buffer, transfer->length, NULL, overlapped);
- } else {
- usbi_dbg("writing %d bytes", transfer->length);
- ret = WinUSBX[sub_api].WritePipe(winusb_handle, transfer->endpoint, transfer->buffer, transfer->length, NULL, overlapped);
- }
-
- if (!ret) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_err(ctx, "ReadPipe/WritePipe failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_IO;
- }
- } else {
- windows_force_sync_completion(overlapped, (ULONG)transfer->length);
- }
-
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_clear_halt(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE winusb_handle;
- int current_interface;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- current_interface = interface_by_endpoint(priv, handle_priv, endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cannot clear");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("matched endpoint %02X with interface %d", endpoint, current_interface);
- winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
-
- if (!WinUSBX[sub_api].ResetPipe(winusb_handle, endpoint)) {
- usbi_err(ctx, "ResetPipe failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * from http://www.winvistatips.com/winusb-bugchecks-t335323.html (confirmed
- * through testing as well):
- * "You can not call WinUsb_AbortPipe on control pipe. You can possibly cancel
- * the control transfer using CancelIo"
- */
-static int winusbx_abort_control(int sub_api, struct usbi_transfer *itransfer)
-{
- // Cancelling of the I/O is done in the parent
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_abort_transfers(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- HANDLE handle;
- int current_interface;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- current_interface = transfer_priv->interface_number;
- if ((current_interface < 0) || (current_interface >= USB_MAXINTERFACES)) {
- usbi_err(ctx, "program assertion failed: invalid interface_number");
- return LIBUSB_ERROR_NOT_FOUND;
- }
- usbi_dbg("will use interface %d", current_interface);
-
- if (WinUSBX[sub_api].CancelIoEx_supported) {
- // Try to use CancelIoEx if available to cancel just a single transfer
- handle = handle_priv->interface_handle[current_interface].dev_handle;
- if (pCancelIoEx(handle, transfer_priv->pollable_fd.overlapped))
- return LIBUSB_SUCCESS;
- else if (GetLastError() == ERROR_NOT_FOUND)
- return LIBUSB_ERROR_NOT_FOUND;
-
- // Not every driver implements the necessary functionality for CancelIoEx
- usbi_warn(ctx, "CancelIoEx not supported for sub API %s", winusbx_driver_names[sub_api]);
- WinUSBX[sub_api].CancelIoEx_supported = false;
- }
-
- handle = handle_priv->interface_handle[current_interface].api_handle;
- if (!WinUSBX[sub_api].AbortPipe(handle, transfer->endpoint)) {
- usbi_err(ctx, "AbortPipe failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * from the "How to Use WinUSB to Communicate with a USB Device" Microsoft white paper
- * (http://www.microsoft.com/whdc/connect/usb/winusb_howto.mspx):
- * "WinUSB does not support host-initiated reset port and cycle port operations" and
- * IOCTL_INTERNAL_USB_CYCLE_PORT is only available in kernel mode and the
- * IOCTL_USB_HUB_CYCLE_PORT ioctl was removed from Vista => the best we can do is
- * cycle the pipes (and even then, the control pipe can not be reset using WinUSB)
- */
-// TODO: (post hotplug): see if we can force eject the device and redetect it (reuse hotplug?)
-static int winusbx_reset_device(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE winusb_handle;
- int i, j;
-
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- // Reset any available pipe (except control)
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- winusb_handle = handle_priv->interface_handle[i].api_handle;
- if (HANDLE_VALID(winusb_handle)) {
- for (j = 0; j < priv->usb_interface[i].nb_endpoints; j++) {
- usbi_dbg("resetting ep %02X", priv->usb_interface[i].endpoint[j]);
- if (!WinUSBX[sub_api].AbortPipe(winusb_handle, priv->usb_interface[i].endpoint[j]))
- usbi_err(ctx, "AbortPipe (pipe address %02X) failed: %s",
- priv->usb_interface[i].endpoint[j], windows_error_str(0));
-
- // FlushPipe seems to fail on OUT pipes
- if (IS_EPIN(priv->usb_interface[i].endpoint[j])
- && (!WinUSBX[sub_api].FlushPipe(winusb_handle, priv->usb_interface[i].endpoint[j])))
- usbi_err(ctx, "FlushPipe (pipe address %02X) failed: %s",
- priv->usb_interface[i].endpoint[j], windows_error_str(0));
-
- if (!WinUSBX[sub_api].ResetPipe(winusb_handle, priv->usb_interface[i].endpoint[j]))
- usbi_err(ctx, "ResetPipe (pipe address %02X) failed: %s",
- priv->usb_interface[i].endpoint[j], windows_error_str(0));
- }
- }
- }
-
- // libusbK & libusb0 have the ability to issue an actual device reset
- if (WinUSBX[sub_api].ResetDevice != NULL) {
- winusb_handle = handle_priv->interface_handle[0].api_handle;
- if (HANDLE_VALID(winusb_handle))
- WinUSBX[sub_api].ResetDevice(winusb_handle);
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusbx_copy_transfer_data(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- PKISO_CONTEXT iso_context;
- int i;
-
- if (transfer->type == LIBUSB_TRANSFER_TYPE_ISOCHRONOUS) {
- CHECK_WINUSBX_AVAILABLE(sub_api);
-
- // for isochronous, need to copy the individual iso packet actual_lengths and statuses
- if ((sub_api == SUB_API_LIBUSBK) || (sub_api == SUB_API_LIBUSB0)) {
- // iso only supported on libusbk-based backends for now
- iso_context = transfer_priv->iso_context;
- for (i = 0; i < transfer->num_iso_packets; i++) {
- transfer->iso_packet_desc[i].actual_length = iso_context->IsoPackets[i].actual_length;
- // TODO translate USDB_STATUS codes http://msdn.microsoft.com/en-us/library/ff539136(VS.85).aspx to libusb_transfer_status
- //transfer->iso_packet_desc[i].status = transfer_priv->iso_context->IsoPackets[i].status;
- }
- } else {
- // This should only occur if backend is not set correctly or other backend isoc is partially implemented
- PRINT_UNSUPPORTED_API(copy_transfer_data);
- return LIBUSB_ERROR_NOT_SUPPORTED;
- }
- }
-
- itransfer->transferred += io_size;
- return LIBUSB_TRANSFER_COMPLETED;
-}
-
-/*
- * Internal HID Support functions (from libusb-win32)
- * Note that functions that complete data transfer synchronously must return
- * LIBUSB_COMPLETED instead of LIBUSB_SUCCESS
- */
-static int _hid_get_hid_descriptor(struct hid_device_priv *dev, void *data, size_t *size);
-static int _hid_get_report_descriptor(struct hid_device_priv *dev, void *data, size_t *size);
-
-static int _hid_wcslen(WCHAR *str)
-{
- int i = 0;
-
- while (str[i] && (str[i] != 0x409))
- i++;
-
- return i;
-}
-
-static int _hid_get_device_descriptor(struct hid_device_priv *dev, void *data, size_t *size)
-{
- struct libusb_device_descriptor d;
-
- d.bLength = LIBUSB_DT_DEVICE_SIZE;
- d.bDescriptorType = LIBUSB_DT_DEVICE;
- d.bcdUSB = 0x0200; /* 2.00 */
- d.bDeviceClass = 0;
- d.bDeviceSubClass = 0;
- d.bDeviceProtocol = 0;
- d.bMaxPacketSize0 = 64; /* fix this! */
- d.idVendor = (uint16_t)dev->vid;
- d.idProduct = (uint16_t)dev->pid;
- d.bcdDevice = 0x0100;
- d.iManufacturer = dev->string_index[0];
- d.iProduct = dev->string_index[1];
- d.iSerialNumber = dev->string_index[2];
- d.bNumConfigurations = 1;
-
- if (*size > LIBUSB_DT_DEVICE_SIZE)
- *size = LIBUSB_DT_DEVICE_SIZE;
- memcpy(data, &d, *size);
-
- return LIBUSB_COMPLETED;
-}
-
-static int _hid_get_config_descriptor(struct hid_device_priv *dev, void *data, size_t *size)
-{
- char num_endpoints = 0;
- size_t config_total_len = 0;
- char tmp[HID_MAX_CONFIG_DESC_SIZE];
- struct libusb_config_descriptor *cd;
- struct libusb_interface_descriptor *id;
- struct libusb_hid_descriptor *hd;
- struct libusb_endpoint_descriptor *ed;
- size_t tmp_size;
-
- if (dev->input_report_size)
- num_endpoints++;
- if (dev->output_report_size)
- num_endpoints++;
-
- config_total_len = LIBUSB_DT_CONFIG_SIZE + LIBUSB_DT_INTERFACE_SIZE
- + LIBUSB_DT_HID_SIZE + num_endpoints * LIBUSB_DT_ENDPOINT_SIZE;
-
- cd = (struct libusb_config_descriptor *)tmp;
- id = (struct libusb_interface_descriptor *)(tmp + LIBUSB_DT_CONFIG_SIZE);
- hd = (struct libusb_hid_descriptor *)(tmp + LIBUSB_DT_CONFIG_SIZE
- + LIBUSB_DT_INTERFACE_SIZE);
- ed = (struct libusb_endpoint_descriptor *)(tmp + LIBUSB_DT_CONFIG_SIZE
- + LIBUSB_DT_INTERFACE_SIZE
- + LIBUSB_DT_HID_SIZE);
-
- cd->bLength = LIBUSB_DT_CONFIG_SIZE;
- cd->bDescriptorType = LIBUSB_DT_CONFIG;
- cd->wTotalLength = (uint16_t)config_total_len;
- cd->bNumInterfaces = 1;
- cd->bConfigurationValue = 1;
- cd->iConfiguration = 0;
- cd->bmAttributes = 1 << 7; /* bus powered */
- cd->MaxPower = 50;
-
- id->bLength = LIBUSB_DT_INTERFACE_SIZE;
- id->bDescriptorType = LIBUSB_DT_INTERFACE;
- id->bInterfaceNumber = 0;
- id->bAlternateSetting = 0;
- id->bNumEndpoints = num_endpoints;
- id->bInterfaceClass = 3;
- id->bInterfaceSubClass = 0;
- id->bInterfaceProtocol = 0;
- id->iInterface = 0;
-
- tmp_size = LIBUSB_DT_HID_SIZE;
- _hid_get_hid_descriptor(dev, hd, &tmp_size);
-
- if (dev->input_report_size) {
- ed->bLength = LIBUSB_DT_ENDPOINT_SIZE;
- ed->bDescriptorType = LIBUSB_DT_ENDPOINT;
- ed->bEndpointAddress = HID_IN_EP;
- ed->bmAttributes = 3;
- ed->wMaxPacketSize = dev->input_report_size - 1;
- ed->bInterval = 10;
- ed = (struct libusb_endpoint_descriptor *)((char *)ed + LIBUSB_DT_ENDPOINT_SIZE);
- }
-
- if (dev->output_report_size) {
- ed->bLength = LIBUSB_DT_ENDPOINT_SIZE;
- ed->bDescriptorType = LIBUSB_DT_ENDPOINT;
- ed->bEndpointAddress = HID_OUT_EP;
- ed->bmAttributes = 3;
- ed->wMaxPacketSize = dev->output_report_size - 1;
- ed->bInterval = 10;
- }
-
- if (*size > config_total_len)
- *size = config_total_len;
- memcpy(data, tmp, *size);
-
- return LIBUSB_COMPLETED;
-}
-
-static int _hid_get_string_descriptor(struct hid_device_priv *dev, int _index,
- void *data, size_t *size, HANDLE hid_handle)
-{
- void *tmp = NULL;
- WCHAR string[MAX_USB_STRING_LENGTH];
- size_t tmp_size = 0;
- int i;
-
- /* language ID, EN-US */
- char string_langid[] = {0x09, 0x04};
-
- if ((*size < 2) || (*size > 255))
- return LIBUSB_ERROR_OVERFLOW;
-
- if (_index == 0) {
- tmp = string_langid;
- tmp_size = sizeof(string_langid) + 2;
- } else {
- for (i = 0; i < 3; i++) {
- if (_index == (dev->string_index[i])) {
- tmp = dev->string[i];
- tmp_size = (_hid_wcslen(dev->string[i]) + 1) * sizeof(WCHAR);
- break;
- }
- }
-
- if (i == 3) {
- if (!HidD_GetIndexedString(hid_handle, _index, string, sizeof(string)))
- return LIBUSB_ERROR_INVALID_PARAM;
- tmp = string;
- tmp_size = (_hid_wcslen(string) + 1) * sizeof(WCHAR);
- }
- }
-
- if (!tmp_size)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- if (tmp_size < *size)
- *size = tmp_size;
-
- // 2 byte header
- ((uint8_t *)data)[0] = (uint8_t)*size;
- ((uint8_t *)data)[1] = LIBUSB_DT_STRING;
- memcpy((uint8_t *)data + 2, tmp, *size - 2);
-
- return LIBUSB_COMPLETED;
-}
-
-static int _hid_get_hid_descriptor(struct hid_device_priv *dev, void *data, size_t *size)
-{
- struct libusb_hid_descriptor d;
- uint8_t tmp[MAX_HID_DESCRIPTOR_SIZE];
- size_t report_len = MAX_HID_DESCRIPTOR_SIZE;
-
- _hid_get_report_descriptor(dev, tmp, &report_len);
-
- d.bLength = LIBUSB_DT_HID_SIZE;
- d.bDescriptorType = LIBUSB_DT_HID;
- d.bcdHID = 0x0110; /* 1.10 */
- d.bCountryCode = 0;
- d.bNumDescriptors = 1;
- d.bClassDescriptorType = LIBUSB_DT_REPORT;
- d.wClassDescriptorLength = (uint16_t)report_len;
-
- if (*size > LIBUSB_DT_HID_SIZE)
- *size = LIBUSB_DT_HID_SIZE;
- memcpy(data, &d, *size);
-
- return LIBUSB_COMPLETED;
-}
-
-static int _hid_get_report_descriptor(struct hid_device_priv *dev, void *data, size_t *size)
-{
- uint8_t d[MAX_HID_DESCRIPTOR_SIZE];
- size_t i = 0;
-
- /* usage page */
- d[i++] = 0x06; d[i++] = dev->usagePage & 0xFF; d[i++] = dev->usagePage >> 8;
- /* usage */
- d[i++] = 0x09; d[i++] = (uint8_t)dev->usage;
- /* start collection (application) */
- d[i++] = 0xA1; d[i++] = 0x01;
- /* input report */
- if (dev->input_report_size) {
- /* usage (vendor defined) */
- d[i++] = 0x09; d[i++] = 0x01;
- /* logical minimum (0) */
- d[i++] = 0x15; d[i++] = 0x00;
- /* logical maximum (255) */
- d[i++] = 0x25; d[i++] = 0xFF;
- /* report size (8 bits) */
- d[i++] = 0x75; d[i++] = 0x08;
- /* report count */
- d[i++] = 0x95; d[i++] = (uint8_t)dev->input_report_size - 1;
- /* input (data, variable, absolute) */
- d[i++] = 0x81; d[i++] = 0x00;
- }
- /* output report */
- if (dev->output_report_size) {
- /* usage (vendor defined) */
- d[i++] = 0x09; d[i++] = 0x02;
- /* logical minimum (0) */
- d[i++] = 0x15; d[i++] = 0x00;
- /* logical maximum (255) */
- d[i++] = 0x25; d[i++] = 0xFF;
- /* report size (8 bits) */
- d[i++] = 0x75; d[i++] = 0x08;
- /* report count */
- d[i++] = 0x95; d[i++] = (uint8_t)dev->output_report_size - 1;
- /* output (data, variable, absolute) */
- d[i++] = 0x91; d[i++] = 0x00;
- }
- /* feature report */
- if (dev->feature_report_size) {
- /* usage (vendor defined) */
- d[i++] = 0x09; d[i++] = 0x03;
- /* logical minimum (0) */
- d[i++] = 0x15; d[i++] = 0x00;
- /* logical maximum (255) */
- d[i++] = 0x25; d[i++] = 0xFF;
- /* report size (8 bits) */
- d[i++] = 0x75; d[i++] = 0x08;
- /* report count */
- d[i++] = 0x95; d[i++] = (uint8_t)dev->feature_report_size - 1;
- /* feature (data, variable, absolute) */
- d[i++] = 0xb2; d[i++] = 0x02; d[i++] = 0x01;
- }
-
- /* end collection */
- d[i++] = 0xC0;
-
- if (*size > i)
- *size = i;
- memcpy(data, d, *size);
-
- return LIBUSB_COMPLETED;
-}
-
-static int _hid_get_descriptor(struct hid_device_priv *dev, HANDLE hid_handle, int recipient,
- int type, int _index, void *data, size_t *size)
-{
- switch (type) {
- case LIBUSB_DT_DEVICE:
- usbi_dbg("LIBUSB_DT_DEVICE");
- return _hid_get_device_descriptor(dev, data, size);
- case LIBUSB_DT_CONFIG:
- usbi_dbg("LIBUSB_DT_CONFIG");
- if (!_index)
- return _hid_get_config_descriptor(dev, data, size);
- return LIBUSB_ERROR_INVALID_PARAM;
- case LIBUSB_DT_STRING:
- usbi_dbg("LIBUSB_DT_STRING");
- return _hid_get_string_descriptor(dev, _index, data, size, hid_handle);
- case LIBUSB_DT_HID:
- usbi_dbg("LIBUSB_DT_HID");
- if (!_index)
- return _hid_get_hid_descriptor(dev, data, size);
- return LIBUSB_ERROR_INVALID_PARAM;
- case LIBUSB_DT_REPORT:
- usbi_dbg("LIBUSB_DT_REPORT");
- if (!_index)
- return _hid_get_report_descriptor(dev, data, size);
- return LIBUSB_ERROR_INVALID_PARAM;
- case LIBUSB_DT_PHYSICAL:
- usbi_dbg("LIBUSB_DT_PHYSICAL");
- if (HidD_GetPhysicalDescriptor(hid_handle, data, (ULONG)*size))
- return LIBUSB_COMPLETED;
- return LIBUSB_ERROR_OTHER;
- }
-
- usbi_dbg("unsupported");
- return LIBUSB_ERROR_NOT_SUPPORTED;
-}
-
-static int _hid_get_report(struct hid_device_priv *dev, HANDLE hid_handle, int id, void *data,
- struct winusb_transfer_priv *tp, size_t *size, OVERLAPPED *overlapped, int report_type)
-{
- uint8_t *buf;
- DWORD ioctl_code, read_size, expected_size = (DWORD)*size;
- int r = LIBUSB_SUCCESS;
-
- if (tp->hid_buffer != NULL)
- usbi_dbg("program assertion failed: hid_buffer is not NULL");
-
- if ((*size == 0) || (*size > MAX_HID_REPORT_SIZE)) {
- usbi_dbg("invalid size (%u)", *size);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- switch (report_type) {
- case HID_REPORT_TYPE_INPUT:
- ioctl_code = IOCTL_HID_GET_INPUT_REPORT;
- break;
- case HID_REPORT_TYPE_FEATURE:
- ioctl_code = IOCTL_HID_GET_FEATURE;
- break;
- default:
- usbi_dbg("unknown HID report type %d", report_type);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- // Add a trailing byte to detect overflows
- buf = calloc(1, expected_size + 1);
- if (buf == NULL)
- return LIBUSB_ERROR_NO_MEM;
-
- buf[0] = (uint8_t)id; // Must be set always
- usbi_dbg("report ID: 0x%02X", buf[0]);
-
- tp->hid_expected_size = expected_size;
- read_size = expected_size;
-
- // NB: The size returned by DeviceIoControl doesn't include report IDs when not in use (0)
- if (!DeviceIoControl(hid_handle, ioctl_code, buf, expected_size + 1,
- buf, expected_size + 1, &read_size, overlapped)) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_dbg("Failed to Read HID Report: %s", windows_error_str(0));
- free(buf);
- return LIBUSB_ERROR_IO;
- }
- // Asynchronous wait
- tp->hid_buffer = buf;
- tp->hid_dest = data; // copy dest, as not necessarily the start of the transfer buffer
- return LIBUSB_SUCCESS;
- }
-
- // Transfer completed synchronously => copy and discard extra buffer
- if (read_size == 0) {
- usbi_warn(NULL, "program assertion failed - read completed synchronously, but no data was read");
- *size = 0;
- } else {
- if (buf[0] != id)
- usbi_warn(NULL, "mismatched report ID (data is %02X, parameter is %02X)", buf[0], id);
-
- if ((size_t)read_size > expected_size) {
- r = LIBUSB_ERROR_OVERFLOW;
- usbi_dbg("OVERFLOW!");
- } else {
- r = LIBUSB_COMPLETED;
- }
-
- *size = MIN((size_t)read_size, *size);
- if (id == 0)
- memcpy(data, buf + 1, *size); // Discard report ID
- else
- memcpy(data, buf, *size);
- }
-
- free(buf);
- return r;
-}
-
-static int _hid_set_report(struct hid_device_priv *dev, HANDLE hid_handle, int id, void *data,
- struct winusb_transfer_priv *tp, size_t *size, OVERLAPPED *overlapped, int report_type)
-{
- uint8_t *buf = NULL;
- DWORD ioctl_code, write_size = (DWORD)*size;
- // If an id is reported, we must allow MAX_HID_REPORT_SIZE + 1
- size_t max_report_size = MAX_HID_REPORT_SIZE + (id ? 1 : 0);
-
- if (tp->hid_buffer != NULL)
- usbi_dbg("program assertion failed: hid_buffer is not NULL");
-
- if ((*size == 0) || (*size > max_report_size)) {
- usbi_dbg("invalid size (%u)", *size);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- switch (report_type) {
- case HID_REPORT_TYPE_OUTPUT:
- ioctl_code = IOCTL_HID_SET_OUTPUT_REPORT;
- break;
- case HID_REPORT_TYPE_FEATURE:
- ioctl_code = IOCTL_HID_SET_FEATURE;
- break;
- default:
- usbi_dbg("unknown HID report type %d", report_type);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- usbi_dbg("report ID: 0x%02X", id);
- // When report IDs are not used (i.e. when id == 0), we must add
- // a null report ID. Otherwise, we just use original data buffer
- if (id == 0)
- write_size++;
-
- buf = malloc(write_size);
- if (buf == NULL)
- return LIBUSB_ERROR_NO_MEM;
-
- if (id == 0) {
- buf[0] = 0;
- memcpy(buf + 1, data, *size);
- } else {
- // This seems like a waste, but if we don't duplicate the
- // data, we'll get issues when freeing hid_buffer
- memcpy(buf, data, *size);
- if (buf[0] != id)
- usbi_warn(NULL, "mismatched report ID (data is %02X, parameter is %02X)", buf[0], id);
- }
-
- // NB: The size returned by DeviceIoControl doesn't include report IDs when not in use (0)
- if (!DeviceIoControl(hid_handle, ioctl_code, buf, write_size,
- buf, write_size, &write_size, overlapped)) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_dbg("Failed to Write HID Output Report: %s", windows_error_str(0));
- free(buf);
- return LIBUSB_ERROR_IO;
- }
- tp->hid_buffer = buf;
- tp->hid_dest = NULL;
- return LIBUSB_SUCCESS;
- }
-
- // Transfer completed synchronously
- *size = write_size;
- if (write_size == 0)
- usbi_dbg("program assertion failed - write completed synchronously, but no data was written");
-
- free(buf);
- return LIBUSB_COMPLETED;
-}
-
-static int _hid_class_request(struct hid_device_priv *dev, HANDLE hid_handle, int request_type,
- int request, int value, int _index, void *data, struct winusb_transfer_priv *tp,
- size_t *size, OVERLAPPED *overlapped)
-{
- int report_type = (value >> 8) & 0xFF;
- int report_id = value & 0xFF;
-
- if ((LIBUSB_REQ_RECIPIENT(request_type) != LIBUSB_RECIPIENT_INTERFACE)
- && (LIBUSB_REQ_RECIPIENT(request_type) != LIBUSB_RECIPIENT_DEVICE))
- return LIBUSB_ERROR_INVALID_PARAM;
-
- if (LIBUSB_REQ_OUT(request_type) && request == HID_REQ_SET_REPORT)
- return _hid_set_report(dev, hid_handle, report_id, data, tp, size, overlapped, report_type);
-
- if (LIBUSB_REQ_IN(request_type) && request == HID_REQ_GET_REPORT)
- return _hid_get_report(dev, hid_handle, report_id, data, tp, size, overlapped, report_type);
-
- return LIBUSB_ERROR_INVALID_PARAM;
-}
-
-
-/*
- * HID API functions
- */
-static int hid_init(struct libusb_context *ctx)
-{
- DLL_GET_HANDLE(hid);
-
- DLL_LOAD_FUNC(hid, HidD_GetAttributes, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetHidGuid, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetPreparsedData, TRUE);
- DLL_LOAD_FUNC(hid, HidD_FreePreparsedData, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetManufacturerString, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetProductString, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetSerialNumberString, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetIndexedString, TRUE);
- DLL_LOAD_FUNC(hid, HidP_GetCaps, TRUE);
- DLL_LOAD_FUNC(hid, HidD_SetNumInputBuffers, TRUE);
- DLL_LOAD_FUNC(hid, HidD_GetPhysicalDescriptor, TRUE);
- DLL_LOAD_FUNC(hid, HidD_FlushQueue, TRUE);
- DLL_LOAD_FUNC(hid, HidP_GetValueCaps, TRUE);
-
- api_hid_available = true;
- return LIBUSB_SUCCESS;
-}
-
-static void hid_exit(void)
-{
- DLL_FREE_HANDLE(hid);
-}
-
-// NB: open and close must ensure that they only handle interface of
-// the right API type, as these functions can be called wholesale from
-// composite_open(), with interfaces belonging to different APIs
-static int hid_open(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- HIDD_ATTRIBUTES hid_attributes;
- PHIDP_PREPARSED_DATA preparsed_data = NULL;
- HIDP_CAPS capabilities;
- HIDP_VALUE_CAPS *value_caps;
- HANDLE hid_handle = INVALID_HANDLE_VALUE;
- int i, j;
- // report IDs handling
- ULONG size[3];
- int nb_ids[2]; // zero and nonzero report IDs
-#if defined(ENABLE_LOGGING)
- const char * const type[3] = {"input", "output", "feature"};
-#endif
-
- CHECK_HID_AVAILABLE;
-
- if (priv->hid == NULL) {
- usbi_err(ctx, "program assertion failed - private HID structure is unitialized");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if ((priv->usb_interface[i].path != NULL)
- && (priv->usb_interface[i].apib->id == USB_API_HID)) {
- hid_handle = CreateFileA(priv->usb_interface[i].path, GENERIC_WRITE | GENERIC_READ, FILE_SHARE_WRITE | FILE_SHARE_READ,
- NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
- /*
- * http://www.lvr.com/hidfaq.htm: Why do I receive "Access denied" when attempting to access my HID?
- * "Windows 2000 and later have exclusive read/write access to HIDs that are configured as a system
- * keyboards or mice. An application can obtain a handle to a system keyboard or mouse by not
- * requesting READ or WRITE access with CreateFile. Applications can then use HidD_SetFeature and
- * HidD_GetFeature (if the device supports Feature reports)."
- */
- if (hid_handle == INVALID_HANDLE_VALUE) {
- usbi_warn(ctx, "could not open HID device in R/W mode (keyboard or mouse?) - trying without");
- hid_handle = CreateFileA(priv->usb_interface[i].path, 0, FILE_SHARE_WRITE | FILE_SHARE_READ,
- NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
- if (hid_handle == INVALID_HANDLE_VALUE) {
- usbi_err(ctx, "could not open device %s (interface %d): %s", priv->path, i, windows_error_str(0));
- switch (GetLastError()) {
- case ERROR_FILE_NOT_FOUND: // The device was disconnected
- return LIBUSB_ERROR_NO_DEVICE;
- case ERROR_ACCESS_DENIED:
- return LIBUSB_ERROR_ACCESS;
- default:
- return LIBUSB_ERROR_IO;
- }
- }
- priv->usb_interface[i].restricted_functionality = true;
- }
- handle_priv->interface_handle[i].api_handle = hid_handle;
- }
- }
-
- hid_attributes.Size = sizeof(hid_attributes);
- do {
- if (!HidD_GetAttributes(hid_handle, &hid_attributes)) {
- usbi_err(ctx, "could not gain access to HID top collection (HidD_GetAttributes)");
- break;
- }
-
- priv->hid->vid = hid_attributes.VendorID;
- priv->hid->pid = hid_attributes.ProductID;
-
- // Set the maximum available input buffer size
- for (i = 32; HidD_SetNumInputBuffers(hid_handle, i); i *= 2);
- usbi_dbg("set maximum input buffer size to %d", i / 2);
-
- // Get the maximum input and output report size
- if (!HidD_GetPreparsedData(hid_handle, &preparsed_data) || !preparsed_data) {
- usbi_err(ctx, "could not read HID preparsed data (HidD_GetPreparsedData)");
- break;
- }
- if (HidP_GetCaps(preparsed_data, &capabilities) != HIDP_STATUS_SUCCESS) {
- usbi_err(ctx, "could not parse HID capabilities (HidP_GetCaps)");
- break;
- }
-
- // Find out if interrupt will need report IDs
- size[0] = capabilities.NumberInputValueCaps;
- size[1] = capabilities.NumberOutputValueCaps;
- size[2] = capabilities.NumberFeatureValueCaps;
- for (j = HidP_Input; j <= HidP_Feature; j++) {
- usbi_dbg("%u HID %s report value(s) found", (unsigned int)size[j], type[j]);
- priv->hid->uses_report_ids[j] = false;
- if (size[j] > 0) {
- value_caps = calloc(size[j], sizeof(HIDP_VALUE_CAPS));
- if ((value_caps != NULL)
- && (HidP_GetValueCaps((HIDP_REPORT_TYPE)j, value_caps, &size[j], preparsed_data) == HIDP_STATUS_SUCCESS)
- && (size[j] >= 1)) {
- nb_ids[0] = 0;
- nb_ids[1] = 0;
- for (i = 0; i < (int)size[j]; i++) {
- usbi_dbg(" Report ID: 0x%02X", value_caps[i].ReportID);
- if (value_caps[i].ReportID != 0)
- nb_ids[1]++;
- else
- nb_ids[0]++;
- }
- if (nb_ids[1] != 0) {
- if (nb_ids[0] != 0)
- usbi_warn(ctx, "program assertion failed: zero and nonzero report IDs used for %s",
- type[j]);
- priv->hid->uses_report_ids[j] = true;
- }
- } else {
- usbi_warn(ctx, " could not process %s report IDs", type[j]);
- }
- free(value_caps);
- }
- }
-
- // Set the report sizes
- priv->hid->input_report_size = capabilities.InputReportByteLength;
- priv->hid->output_report_size = capabilities.OutputReportByteLength;
- priv->hid->feature_report_size = capabilities.FeatureReportByteLength;
-
- // Store usage and usagePage values
- priv->hid->usage = capabilities.Usage;
- priv->hid->usagePage = capabilities.UsagePage;
-
- // Fetch string descriptors
- priv->hid->string_index[0] = priv->dev_descriptor.iManufacturer;
- if (priv->hid->string_index[0] != 0)
- HidD_GetManufacturerString(hid_handle, priv->hid->string[0], sizeof(priv->hid->string[0]));
- else
- priv->hid->string[0][0] = 0;
-
- priv->hid->string_index[1] = priv->dev_descriptor.iProduct;
- if (priv->hid->string_index[1] != 0)
- HidD_GetProductString(hid_handle, priv->hid->string[1], sizeof(priv->hid->string[1]));
- else
- priv->hid->string[1][0] = 0;
-
- priv->hid->string_index[2] = priv->dev_descriptor.iSerialNumber;
- if (priv->hid->string_index[2] != 0)
- HidD_GetSerialNumberString(hid_handle, priv->hid->string[2], sizeof(priv->hid->string[2]));
- else
- priv->hid->string[2][0] = 0;
- } while (0);
-
- if (preparsed_data)
- HidD_FreePreparsedData(preparsed_data);
-
- return LIBUSB_SUCCESS;
-}
-
-static void hid_close(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- HANDLE file_handle;
- int i;
-
- if (!api_hid_available)
- return;
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if (priv->usb_interface[i].apib->id == USB_API_HID) {
- file_handle = handle_priv->interface_handle[i].api_handle;
- if (HANDLE_VALID(file_handle))
- CloseHandle(file_handle);
- }
- }
-}
-
-static int hid_claim_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_HID_AVAILABLE;
-
- // NB: Disconnection detection is not possible in this function
- if (priv->usb_interface[iface].path == NULL)
- return LIBUSB_ERROR_NOT_FOUND; // invalid iface
-
- // We use dev_handle as a flag for interface claimed
- if (handle_priv->interface_handle[iface].dev_handle == INTERFACE_CLAIMED)
- return LIBUSB_ERROR_BUSY; // already claimed
-
- handle_priv->interface_handle[iface].dev_handle = INTERFACE_CLAIMED;
-
- usbi_dbg("claimed interface %d", iface);
- handle_priv->active_interface = iface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int hid_release_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_HID_AVAILABLE;
-
- if (priv->usb_interface[iface].path == NULL)
- return LIBUSB_ERROR_NOT_FOUND; // invalid iface
-
- if (handle_priv->interface_handle[iface].dev_handle != INTERFACE_CLAIMED)
- return LIBUSB_ERROR_NOT_FOUND; // invalid iface
-
- handle_priv->interface_handle[iface].dev_handle = INVALID_HANDLE_VALUE;
-
- return LIBUSB_SUCCESS;
-}
-
-static int hid_set_interface_altsetting(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
-
- CHECK_HID_AVAILABLE;
-
- if (altsetting > 255)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- if (altsetting != 0) {
- usbi_err(ctx, "set interface altsetting not supported for altsetting >0");
- return LIBUSB_ERROR_NOT_SUPPORTED;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int hid_submit_control_transfer(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- WINUSB_SETUP_PACKET *setup = (WINUSB_SETUP_PACKET *)transfer->buffer;
- HANDLE hid_handle;
- OVERLAPPED *overlapped;
- int current_interface, config;
- size_t size;
- int r = LIBUSB_ERROR_INVALID_PARAM;
-
- CHECK_HID_AVAILABLE;
-
- safe_free(transfer_priv->hid_buffer);
- transfer_priv->hid_dest = NULL;
- size = transfer->length - LIBUSB_CONTROL_SETUP_SIZE;
-
- if (size > MAX_CTRL_BUFFER_LENGTH)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- current_interface = get_valid_interface(transfer->dev_handle, USB_API_HID);
- if (current_interface < 0) {
- if (auto_claim(transfer, ¤t_interface, USB_API_HID) != LIBUSB_SUCCESS)
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("will use interface %d", current_interface);
-
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- overlapped = transfer_priv->pollable_fd.overlapped;
-
- switch (LIBUSB_REQ_TYPE(setup->RequestType)) {
- case LIBUSB_REQUEST_TYPE_STANDARD:
- switch (setup->Request) {
- case LIBUSB_REQUEST_GET_DESCRIPTOR:
- r = _hid_get_descriptor(priv->hid, hid_handle, LIBUSB_REQ_RECIPIENT(setup->RequestType),
- (setup->Value >> 8) & 0xFF, setup->Value & 0xFF, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, &size);
- break;
- case LIBUSB_REQUEST_GET_CONFIGURATION:
- r = winusb_get_configuration(transfer->dev_handle, &config);
- if (r == LIBUSB_SUCCESS) {
- size = 1;
- ((uint8_t *)transfer->buffer)[LIBUSB_CONTROL_SETUP_SIZE] = (uint8_t)config;
- r = LIBUSB_COMPLETED;
- }
- break;
- case LIBUSB_REQUEST_SET_CONFIGURATION:
- if (setup->Value == priv->active_config) {
- r = LIBUSB_COMPLETED;
- } else {
- usbi_warn(ctx, "cannot set configuration other than the default one");
- r = LIBUSB_ERROR_NOT_SUPPORTED;
- }
- break;
- case LIBUSB_REQUEST_GET_INTERFACE:
- size = 1;
- ((uint8_t *)transfer->buffer)[LIBUSB_CONTROL_SETUP_SIZE] = 0;
- r = LIBUSB_COMPLETED;
- break;
- case LIBUSB_REQUEST_SET_INTERFACE:
- r = hid_set_interface_altsetting(0, transfer->dev_handle, setup->Index, setup->Value);
- if (r == LIBUSB_SUCCESS)
- r = LIBUSB_COMPLETED;
- break;
- default:
- usbi_warn(ctx, "unsupported HID control request");
- return LIBUSB_ERROR_NOT_SUPPORTED;
- }
- break;
- case LIBUSB_REQUEST_TYPE_CLASS:
- r = _hid_class_request(priv->hid, hid_handle, setup->RequestType, setup->Request, setup->Value,
- setup->Index, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, transfer_priv,
- &size, overlapped);
- break;
- default:
- usbi_warn(ctx, "unsupported HID control request");
- return LIBUSB_ERROR_NOT_SUPPORTED;
- }
-
- if (r < 0)
- return r;
-
- if (r == LIBUSB_COMPLETED) {
- // Force request to be completed synchronously. Transferred size has been set by previous call
- windows_force_sync_completion(overlapped, (ULONG)size);
- r = LIBUSB_SUCCESS;
- }
-
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int hid_submit_bulk_transfer(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- HANDLE hid_handle;
- OVERLAPPED *overlapped;
- bool direction_in, ret;
- int current_interface, length;
- DWORD size;
- int r = LIBUSB_SUCCESS;
-
- CHECK_HID_AVAILABLE;
-
- transfer_priv->hid_dest = NULL;
- safe_free(transfer_priv->hid_buffer);
-
- current_interface = interface_by_endpoint(priv, handle_priv, transfer->endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cancelling transfer");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("matched endpoint %02X with interface %d", transfer->endpoint, current_interface);
-
- transfer_priv->handle = hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- overlapped = transfer_priv->pollable_fd.overlapped;
- direction_in = IS_XFERIN(transfer);
-
- // If report IDs are not in use, an extra prefix byte must be added
- if (((direction_in) && (!priv->hid->uses_report_ids[0]))
- || ((!direction_in) && (!priv->hid->uses_report_ids[1])))
- length = transfer->length + 1;
- else
- length = transfer->length;
-
- // Add a trailing byte to detect overflows on input
- transfer_priv->hid_buffer = calloc(1, length + 1);
- if (transfer_priv->hid_buffer == NULL)
- return LIBUSB_ERROR_NO_MEM;
-
- transfer_priv->hid_expected_size = length;
-
- if (direction_in) {
- transfer_priv->hid_dest = transfer->buffer;
- usbi_dbg("reading %d bytes (report ID: 0x00)", length);
- ret = ReadFile(hid_handle, transfer_priv->hid_buffer, length + 1, &size, overlapped);
- } else {
- if (!priv->hid->uses_report_ids[1])
- memcpy(transfer_priv->hid_buffer + 1, transfer->buffer, transfer->length);
- else
- // We could actually do without the calloc and memcpy in this case
- memcpy(transfer_priv->hid_buffer, transfer->buffer, transfer->length);
-
- usbi_dbg("writing %d bytes (report ID: 0x%02X)", length, transfer_priv->hid_buffer[0]);
- ret = WriteFile(hid_handle, transfer_priv->hid_buffer, length, &size, overlapped);
- }
-
- if (!ret) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_err(ctx, "HID transfer failed: %s", windows_error_str(0));
- safe_free(transfer_priv->hid_buffer);
- return LIBUSB_ERROR_IO;
- }
- } else {
- // Only write operations that completed synchronously need to free up
- // hid_buffer. For reads, copy_transfer_data() handles that process.
- if (!direction_in)
- safe_free(transfer_priv->hid_buffer);
-
- if (size == 0) {
- usbi_err(ctx, "program assertion failed - no data was transferred");
- size = 1;
- }
- if (size > (size_t)length) {
- usbi_err(ctx, "OVERFLOW!");
- r = LIBUSB_ERROR_OVERFLOW;
- }
- windows_force_sync_completion(overlapped, (ULONG)size);
- }
-
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return r;
-}
-
-static int hid_abort_transfers(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_context *ctx = ITRANSFER_CTX(itransfer);
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- HANDLE hid_handle;
- int current_interface;
-
- CHECK_HID_AVAILABLE;
-
- current_interface = transfer_priv->interface_number;
- if ((current_interface < 0) || (current_interface >= USB_MAXINTERFACES)) {
- usbi_err(ctx, "program assertion failed: invalid interface_number");
- return LIBUSB_ERROR_NOT_FOUND;
- }
- usbi_dbg("will use interface %d", current_interface);
-
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
-
- if (pCancelIoEx != NULL) {
- // Use CancelIoEx if available to cancel just a single transfer
- if (pCancelIoEx(hid_handle, transfer_priv->pollable_fd.overlapped))
- return LIBUSB_SUCCESS;
- } else {
- if (CancelIo(hid_handle))
- return LIBUSB_SUCCESS;
- }
-
- usbi_warn(ctx, "cancel failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_NOT_FOUND;
-}
-
-static int hid_reset_device(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- HANDLE hid_handle;
- int current_interface;
-
- CHECK_HID_AVAILABLE;
-
- // Flushing the queues on all interfaces is the best we can achieve
- for (current_interface = 0; current_interface < USB_MAXINTERFACES; current_interface++) {
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- if (HANDLE_VALID(hid_handle))
- HidD_FlushQueue(hid_handle);
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int hid_clear_halt(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- HANDLE hid_handle;
- int current_interface;
-
- CHECK_HID_AVAILABLE;
-
- current_interface = interface_by_endpoint(priv, handle_priv, endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cannot clear");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- usbi_dbg("matched endpoint %02X with interface %d", endpoint, current_interface);
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
-
- // No endpoint selection with Microsoft's implementation, so we try to flush the
- // whole interface. Should be OK for most case scenarios
- if (!HidD_FlushQueue(hid_handle)) {
- usbi_err(ctx, "Flushing of HID queue failed: %s", windows_error_str(0));
- // Device was probably disconnected
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-// This extra function is only needed for HID
-static int hid_copy_transfer_data(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- int r = LIBUSB_TRANSFER_COMPLETED;
- uint32_t corrected_size = io_size;
-
- if (transfer_priv->hid_buffer != NULL) {
- // If we have a valid hid_buffer, it means the transfer was async
- if (transfer_priv->hid_dest != NULL) { // Data readout
- if (corrected_size > 0) {
- // First, check for overflow
- if (corrected_size > transfer_priv->hid_expected_size) {
- usbi_err(ctx, "OVERFLOW!");
- corrected_size = (uint32_t)transfer_priv->hid_expected_size;
- r = LIBUSB_TRANSFER_OVERFLOW;
- }
-
- if (transfer_priv->hid_buffer[0] == 0) {
- // Discard the 1 byte report ID prefix
- corrected_size--;
- memcpy(transfer_priv->hid_dest, transfer_priv->hid_buffer + 1, corrected_size);
- } else {
- memcpy(transfer_priv->hid_dest, transfer_priv->hid_buffer, corrected_size);
- }
- }
- transfer_priv->hid_dest = NULL;
- }
- // For write, we just need to free the hid buffer
- safe_free(transfer_priv->hid_buffer);
- }
-
- itransfer->transferred += corrected_size;
- return r;
-}
-
-
-/*
- * Composite API functions
- */
-static int composite_open(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int r = LIBUSB_ERROR_NOT_FOUND;
- uint8_t i;
- // SUB_API_MAX + 1 as the SUB_API_MAX pos is used to indicate availability of HID
- bool available[SUB_API_MAX + 1] = { 0 };
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- switch (priv->usb_interface[i].apib->id) {
- case USB_API_WINUSBX:
- if (priv->usb_interface[i].sub_api != SUB_API_NOTSET)
- available[priv->usb_interface[i].sub_api] = true;
- break;
- case USB_API_HID:
- available[SUB_API_MAX] = true;
- break;
- default:
- break;
- }
- }
-
- for (i = 0; i < SUB_API_MAX; i++) { // WinUSB-like drivers
- if (available[i]) {
- r = usb_api_backend[USB_API_WINUSBX].open(i, dev_handle);
- if (r != LIBUSB_SUCCESS)
- return r;
- }
- }
-
- if (available[SUB_API_MAX]) // HID driver
- r = hid_open(SUB_API_NOTSET, dev_handle);
-
- return r;
-}
-
-static void composite_close(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- uint8_t i;
- // SUB_API_MAX + 1 as the SUB_API_MAX pos is used to indicate availability of HID
- bool available[SUB_API_MAX + 1] = { 0 };
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- switch (priv->usb_interface[i].apib->id) {
- case USB_API_WINUSBX:
- if (priv->usb_interface[i].sub_api != SUB_API_NOTSET)
- available[priv->usb_interface[i].sub_api] = true;
- break;
- case USB_API_HID:
- available[SUB_API_MAX] = true;
- break;
- default:
- break;
- }
- }
-
- for (i = 0; i < SUB_API_MAX; i++) { // WinUSB-like drivers
- if (available[i])
- usb_api_backend[USB_API_WINUSBX].close(i, dev_handle);
- }
-
- if (available[SUB_API_MAX]) // HID driver
- hid_close(SUB_API_NOTSET, dev_handle);
-}
-
-static int composite_claim_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->usb_interface[iface].apib, claim_interface);
-
- return priv->usb_interface[iface].apib->
- claim_interface(priv->usb_interface[iface].sub_api, dev_handle, iface);
-}
-
-static int composite_set_interface_altsetting(int sub_api, struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->usb_interface[iface].apib, set_interface_altsetting);
-
- return priv->usb_interface[iface].apib->
- set_interface_altsetting(priv->usb_interface[iface].sub_api, dev_handle, iface, altsetting);
-}
-
-static int composite_release_interface(int sub_api, struct libusb_device_handle *dev_handle, int iface)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
-
- CHECK_SUPPORTED_API(priv->usb_interface[iface].apib, release_interface);
-
- return priv->usb_interface[iface].apib->
- release_interface(priv->usb_interface[iface].sub_api, dev_handle, iface);
-}
-
-static int composite_submit_control_transfer(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- struct libusb_config_descriptor *conf_desc;
- WINUSB_SETUP_PACKET *setup = (WINUSB_SETUP_PACKET *)transfer->buffer;
- int iface, pass, r;
-
- // Interface shouldn't matter for control, but it does in practice, with Windows'
- // restrictions with regards to accessing HID keyboards and mice. Try to target
- // a specific interface first, if possible.
- switch (LIBUSB_REQ_RECIPIENT(setup->RequestType)) {
- case LIBUSB_RECIPIENT_INTERFACE:
- iface = setup->Index & 0xFF;
- break;
- case LIBUSB_RECIPIENT_ENDPOINT:
- r = libusb_get_active_config_descriptor(transfer->dev_handle->dev, &conf_desc);
- if (r == LIBUSB_SUCCESS) {
- iface = get_interface_by_endpoint(conf_desc, (setup->Index & 0xFF));
- libusb_free_config_descriptor(conf_desc);
- break;
- }
- // Fall through if not able to determine interface
- default:
- iface = -1;
- break;
- }
-
- // Try and target a specific interface if the control setup indicates such
- if ((iface >= 0) && (iface < USB_MAXINTERFACES)) {
- usbi_dbg("attempting control transfer targeted to interface %d", iface);
- if ((priv->usb_interface[iface].path != NULL)
- && (priv->usb_interface[iface].apib->submit_control_transfer != NULL)) {
- r = priv->usb_interface[iface].apib->submit_control_transfer(priv->usb_interface[iface].sub_api, itransfer);
- if (r == LIBUSB_SUCCESS)
- return r;
- }
- }
-
- // Either not targeted to a specific interface or no luck in doing so.
- // Try a 2 pass approach with all interfaces.
- for (pass = 0; pass < 2; pass++) {
- for (iface = 0; iface < USB_MAXINTERFACES; iface++) {
- if ((priv->usb_interface[iface].path != NULL)
- && (priv->usb_interface[iface].apib->submit_control_transfer != NULL)) {
- if ((pass == 0) && (priv->usb_interface[iface].restricted_functionality)) {
- usbi_dbg("trying to skip restricted interface #%d (HID keyboard or mouse?)", iface);
- continue;
- }
- usbi_dbg("using interface %d", iface);
- r = priv->usb_interface[iface].apib->submit_control_transfer(priv->usb_interface[iface].sub_api, itransfer);
- // If not supported on this API, it may be supported on another, so don't give up yet!!
- if (r == LIBUSB_ERROR_NOT_SUPPORTED)
- continue;
- return r;
- }
- }
- }
-
- usbi_err(ctx, "no libusb supported interfaces to complete request");
- return LIBUSB_ERROR_NOT_FOUND;
-}
-
-static int composite_submit_bulk_transfer(int sub_api, struct usbi_transfer *itransfer) {
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int current_interface;
-
- current_interface = interface_by_endpoint(priv, handle_priv, transfer->endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cancelling transfer");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- CHECK_SUPPORTED_API(priv->usb_interface[current_interface].apib, submit_bulk_transfer);
-
- return priv->usb_interface[current_interface].apib->
- submit_bulk_transfer(priv->usb_interface[current_interface].sub_api, itransfer);
-}
-
-static int composite_submit_iso_transfer(int sub_api, struct usbi_transfer *itransfer) {
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(transfer->dev_handle);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int current_interface;
-
- current_interface = interface_by_endpoint(priv, handle_priv, transfer->endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cancelling transfer");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- CHECK_SUPPORTED_API(priv->usb_interface[current_interface].apib, submit_iso_transfer);
-
- return priv->usb_interface[current_interface].apib->
- submit_iso_transfer(priv->usb_interface[current_interface].sub_api, itransfer);
-}
-
-static int composite_clear_halt(int sub_api, struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct winusb_device_handle_priv *handle_priv = _device_handle_priv(dev_handle);
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int current_interface;
-
- current_interface = interface_by_endpoint(priv, handle_priv, endpoint);
- if (current_interface < 0) {
- usbi_err(ctx, "unable to match endpoint to an open interface - cannot clear");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- CHECK_SUPPORTED_API(priv->usb_interface[current_interface].apib, clear_halt);
-
- return priv->usb_interface[current_interface].apib->
- clear_halt(priv->usb_interface[current_interface].sub_api, dev_handle, endpoint);
-}
-
-static int composite_abort_control(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int current_interface = transfer_priv->interface_number;
-
- if ((current_interface < 0) || (current_interface >= USB_MAXINTERFACES)) {
- usbi_err(TRANSFER_CTX(transfer), "program assertion failed: invalid interface_number");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- CHECK_SUPPORTED_API(priv->usb_interface[current_interface].apib, abort_control);
-
- return priv->usb_interface[current_interface].apib->
- abort_control(priv->usb_interface[current_interface].sub_api, itransfer);
-}
-
-static int composite_abort_transfers(int sub_api, struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int current_interface = transfer_priv->interface_number;
-
- if ((current_interface < 0) || (current_interface >= USB_MAXINTERFACES)) {
- usbi_err(TRANSFER_CTX(transfer), "program assertion failed: invalid interface_number");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- CHECK_SUPPORTED_API(priv->usb_interface[current_interface].apib, abort_transfers);
-
- return priv->usb_interface[current_interface].apib->
- abort_transfers(priv->usb_interface[current_interface].sub_api, itransfer);
-}
-
-static int composite_reset_device(int sub_api, struct libusb_device_handle *dev_handle)
-{
- struct winusb_device_priv *priv = _device_priv(dev_handle->dev);
- int r;
- uint8_t i;
- bool available[SUB_API_MAX];
-
- for (i = 0; i < SUB_API_MAX; i++)
- available[i] = false;
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if ((priv->usb_interface[i].apib->id == USB_API_WINUSBX)
- && (priv->usb_interface[i].sub_api != SUB_API_NOTSET))
- available[priv->usb_interface[i].sub_api] = true;
- }
-
- for (i = 0; i < SUB_API_MAX; i++) {
- if (available[i]) {
- r = usb_api_backend[USB_API_WINUSBX].reset_device(i, dev_handle);
- if (r != LIBUSB_SUCCESS)
- return r;
- }
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int composite_copy_transfer_data(int sub_api, struct usbi_transfer *itransfer, uint32_t io_size)
-{
- struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct winusb_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct winusb_device_priv *priv = _device_priv(transfer->dev_handle->dev);
- int current_interface = transfer_priv->interface_number;
-
- CHECK_SUPPORTED_API(priv->usb_interface[current_interface].apib, copy_transfer_data);
-
- return priv->usb_interface[current_interface].apib->
- copy_transfer_data(priv->usb_interface[current_interface].sub_api, itransfer, io_size);
-}
projects / rtmpclient.git / blobdiff