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Diffstat (limited to 'include/libusb-1.0/os/windows_usb.c')
-rw-r--r--include/libusb-1.0/os/windows_usb.c4185
1 files changed, 0 insertions, 4185 deletions
diff --git a/include/libusb-1.0/os/windows_usb.c b/include/libusb-1.0/os/windows_usb.c
deleted file mode 100644
index e37932a..0000000
--- a/include/libusb-1.0/os/windows_usb.c
+++ /dev/null
@@ -1,4185 +0,0 @@
-/*
- * windows backend for libusb 1.0
- * Copyright (c) 2009-2010 Pete Batard <pbatard@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
- * 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
- */
-
-// COMPILATION OPTIONS:
-// - Should libusb automatically claim (and release) the interfaces it requires?
-#define AUTO_CLAIM
-// - Forces instant overlapped completion on timeouts: can prevents extensive
-// wait in poll, after a timeout, but might affect subsequent API calls.
-// ***USE AT YOUR OWN RISKS***
-//#define FORCE_INSTANT_TIMEOUTS
-
-#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> // for string to GUID conv. requires libole32.a
-#include <winioctl.h>
-
-#include <libusbi.h>
-#include "poll_windows.h"
-#include "windows_usb.h"
-
-// The following prevents "banned API" errors when using the MS's WDK OACR/Prefast
-#if defined(_PREFAST_)
-#pragma warning(disable:28719)
-#endif
-
-// 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; }
-
-extern void usbi_fd_notification(struct libusb_context *ctx);
-
-// Helper prototypes
-static int windows_get_active_config_descriptor(struct libusb_device *dev, unsigned char *buffer, size_t len, int *host_endian);
-static int windows_clock_gettime(int clk_id, struct timespec *tp);
-unsigned __stdcall windows_clock_gettime_threaded(void* param);
-// WinUSB API prototypes
-static int winusb_init(struct libusb_context *ctx);
-static int winusb_exit(void);
-static int winusb_open(struct libusb_device_handle *dev_handle);
-static void winusb_close(struct libusb_device_handle *dev_handle);
-static int winusb_claim_interface(struct libusb_device_handle *dev_handle, int iface);
-static int winusb_release_interface(struct libusb_device_handle *dev_handle, int iface);
-static int winusb_submit_control_transfer(struct usbi_transfer *itransfer);
-static int winusb_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting);
-static int winusb_submit_bulk_transfer(struct usbi_transfer *itransfer);
-static int winusb_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint);
-static int winusb_abort_transfers(struct usbi_transfer *itransfer);
-static int winusb_abort_control(struct usbi_transfer *itransfer);
-static int winusb_reset_device(struct libusb_device_handle *dev_handle);
-static int winusb_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size);
-// HID API prototypes
-static int hid_init(struct libusb_context *ctx);
-static int hid_exit(void);
-static int hid_open(struct libusb_device_handle *dev_handle);
-static void hid_close(struct libusb_device_handle *dev_handle);
-static int hid_claim_interface(struct libusb_device_handle *dev_handle, int iface);
-static int hid_release_interface(struct libusb_device_handle *dev_handle, int iface);
-static int hid_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting);
-static int hid_submit_control_transfer(struct usbi_transfer *itransfer);
-static int hid_submit_bulk_transfer(struct usbi_transfer *itransfer);
-static int hid_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint);
-static int hid_abort_transfers(struct usbi_transfer *itransfer);
-static int hid_reset_device(struct libusb_device_handle *dev_handle);
-static int hid_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size);
-// Composite API prototypes
-static int composite_init(struct libusb_context *ctx);
-static int composite_exit(void);
-static int composite_open(struct libusb_device_handle *dev_handle);
-static void composite_close(struct libusb_device_handle *dev_handle);
-static int composite_claim_interface(struct libusb_device_handle *dev_handle, int iface);
-static int composite_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting);
-static int composite_release_interface(struct libusb_device_handle *dev_handle, int iface);
-static int composite_submit_control_transfer(struct usbi_transfer *itransfer);
-static int composite_submit_bulk_transfer(struct usbi_transfer *itransfer);
-static int composite_submit_iso_transfer(struct usbi_transfer *itransfer);
-static int composite_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint);
-static int composite_abort_transfers(struct usbi_transfer *itransfer);
-static int composite_abort_control(struct usbi_transfer *itransfer);
-static int composite_reset_device(struct libusb_device_handle *dev_handle);
-static int composite_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size);
-
-
-// Global variables
-struct windows_hcd_priv* hcd_root = NULL;
-uint64_t hires_frequency, hires_ticks_to_ps;
-const uint64_t epoch_time = UINT64_C(116444736000000000); // 1970.01.01 00:00:000 in MS Filetime
-enum windows_version windows_version = WINDOWS_UNSUPPORTED;
-// Concurrency
-static int concurrent_usage = -1;
-#if defined(AUTO_CLAIM)
-usbi_mutex_t autoclaim_lock;
-#endif
-// Timer thread
-// NB: index 0 is for monotonic and 1 is for the thread exit event
-HANDLE timer_thread = NULL;
-HANDLE timer_mutex = NULL;
-struct timespec timer_tp;
-volatile LONG request_count[2] = {0, 1}; // last one must be > 0
-HANDLE timer_request[2] = { NULL, NULL };
-HANDLE timer_response = NULL;
-// API globals
-bool api_winusb_available = false;
-#define CHECK_WINUSB_AVAILABLE do { if (!api_winusb_available) return LIBUSB_ERROR_ACCESS; } while (0)
-bool api_hid_available = false;
-#define CHECK_HID_AVAILABLE do { if (!api_hid_available) return LIBUSB_ERROR_ACCESS; } while (0)
-
-
-/*
- * Converts a WCHAR string to UTF8 (allocate returned string)
- * Returns NULL on error
- */
-static char* wchar_to_utf8(LPCWSTR wstr)
-{
- int size;
- char* str;
-
- // Find out the size we need to allocate for our converted string
- size = wchar_to_utf8_ms(wstr, NULL, 0);
- if (size <= 1) // An empty string would be size 1
- return NULL;
-
- if ((str = malloc(size)) == NULL)
- return NULL;
-
- if (wchar_to_utf8_ms(wstr, str, size) != size) {
- safe_free(str);
- return NULL;
- }
-
- return str;
-}
-
-static inline BOOLEAN guid_eq(const GUID *guid1, const GUID *guid2) {
- if ((guid1 != NULL) && (guid2 != NULL)) {
- return (memcmp(guid1, guid2, sizeof(GUID)) == 0);
- }
- return false;
-}
-
-#if 0
-static char* guid_to_string(const GUID guid)
-{
- static char guid_string[MAX_GUID_STRING_LENGTH];
-
- 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
-
-/*
- * Converts a windows error to human readable string
- * uses retval as errorcode, or, if 0, use GetLastError()
- */
-static char *windows_error_str(uint32_t retval)
-{
-static char err_string[ERR_BUFFER_SIZE];
-
- DWORD size;
- size_t i;
- uint32_t error_code, format_error;
-
- error_code = retval?retval:GetLastError();
-
- safe_sprintf(err_string, ERR_BUFFER_SIZE, "[%d] ", error_code);
-
- size = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_code,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &err_string[safe_strlen(err_string)],
- ERR_BUFFER_SIZE - (DWORD)safe_strlen(err_string), NULL);
- if (size == 0) {
- format_error = GetLastError();
- if (format_error)
- safe_sprintf(err_string, ERR_BUFFER_SIZE,
- "Windows error code %u (FormatMessage error code %u)", error_code, format_error);
- else
- safe_sprintf(err_string, ERR_BUFFER_SIZE, "Unknown error code %u", error_code);
- } else {
- // Remove CR/LF terminators
- for (i=safe_strlen(err_string)-1; ((err_string[i]==0x0A) || (err_string[i]==0x0D)); i--) {
- err_string[i] = 0;
- }
- }
- return err_string;
-}
-
-/*
- * 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, root_size;
- char* ret_path = NULL;
- size_t add_root = 0;
-
- if (path == NULL)
- return NULL;
-
- size = safe_strlen(path)+1;
- root_size = sizeof(root_prefix)-1;
-
- // Microsoft indiscriminatly uses '\\?\', '\\.\', '##?#" or "##.#" for root prefixes.
- if (!((size > 3) && (((path[0] == '\\') && (path[1] == '\\') && (path[3] == '\\')) ||
- ((path[0] == '#') && (path[1] == '#') && (path[3] == '#'))))) {
- add_root = root_size;
- size += add_root;
- }
-
- if ((ret_path = (char*)calloc(size, 1)) == NULL)
- return NULL;
-
- safe_strcpy(&ret_path[add_root], size-add_root, path);
-
- // Ensure consistancy with root prefix
- for (j=0; j<root_size; j++)
- ret_path[j] = root_prefix[j];
-
- // Same goes for '\' and '#' after the root prefix. Ensure '#' is used
- for(j=root_size; 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 API functions
- */
-static int Cfgmgr32_init(void)
-{
- DLL_LOAD(Cfgmgr32.dll, CM_Get_Parent, TRUE);
- DLL_LOAD(Cfgmgr32.dll, CM_Get_Child, TRUE);
- DLL_LOAD(Cfgmgr32.dll, CM_Get_Sibling, TRUE);
- DLL_LOAD(Cfgmgr32.dll, CM_Get_Device_IDA, TRUE);
- DLL_LOAD(Cfgmgr32.dll, CM_Get_Device_IDW, TRUE);
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * 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.
- */
-SP_DEVICE_INTERFACE_DETAIL_DATA *get_interface_details(struct libusb_context *ctx,
- HDEVINFO *dev_info, SP_DEVINFO_DATA *dev_info_data, GUID guid, unsigned index)
-{
- SP_DEVICE_INTERFACE_DATA dev_interface_data;
- SP_DEVICE_INTERFACE_DETAIL_DATA *dev_interface_details = NULL;
- DWORD size;
-
- if (index <= 0) {
- *dev_info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_PRESENT|DIGCF_DEVICEINTERFACE);
- }
- if (*dev_info == INVALID_HANDLE_VALUE) {
- return NULL;
- }
-
- if (dev_info_data != NULL) {
- dev_info_data->cbSize = sizeof(SP_DEVINFO_DATA);
- if (!SetupDiEnumDeviceInfo(*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));
- }
- SetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return NULL;
- }
- }
-
- dev_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
- if (!SetupDiEnumDeviceInterfaces(*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));
- }
- SetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return NULL;
- }
-
- // Read interface data (dummy + actual) to access the device path
- if (!SetupDiGetDeviceInterfaceDetail(*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;
- }
-
- if ((dev_interface_details = malloc(size)) == 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);
- if (!SetupDiGetDeviceInterfaceDetail(*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));
- }
-
- return dev_interface_details;
-
-err_exit:
- SetupDiDestroyDeviceInfoList(*dev_info);
- *dev_info = INVALID_HANDLE_VALUE;
- return NULL;
-}
-
-/*
- * Populate the endpoints addresses of the device_priv interface helper structs
- */
-static int windows_assign_endpoints(struct libusb_device *dev, int iface, int altsetting)
-{
- int i, r;
- struct windows_device_priv *priv = __device_priv(dev);
- struct libusb_config_descriptor *conf_desc;
- const struct libusb_interface_descriptor *if_desc;
-
- r = libusb_get_config_descriptor(dev, 0, &conf_desc);
- if (r != LIBUSB_SUCCESS) {
- usbi_warn(NULL, "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);
- return LIBUSB_SUCCESS;
- }
-
- priv->usb_interface[iface].endpoint = malloc(if_desc->bNumEndpoints);
- if (priv->usb_interface[iface].endpoint == NULL) {
- 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);
-
- return LIBUSB_SUCCESS;
-}
-
-// Lookup for a match in the list of API driver names
-bool is_api_driver(char* driver, uint8_t api)
-{
- uint8_t i;
- const char sep_str[2] = {LIST_SEPARATOR, 0};
- char *tok, *tmp_str;
- size_t len = safe_strlen(driver);
-
- if (len == 0) return false;
- tmp_str = calloc(len+1, 1);
- if (tmp_str == NULL) return false;
- memcpy(tmp_str, driver, len+1);
- tok = strtok(tmp_str, sep_str);
- while (tok != NULL) {
- for (i=0; i<usb_api_backend[api].nb_driver_names; i++) {
- if (safe_strcmp(tok, usb_api_backend[api].driver_name_list[i]) == 0) {
- free(tmp_str);
- return true;
- }
- }
- tok = strtok(NULL, sep_str);
- }
- free (tmp_str);
- return false;
-}
-
-/*
- * auto-claiming and auto-release helper functions
- */
-#if defined(AUTO_CLAIM)
-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 windows_device_handle_priv *handle_priv = __device_handle_priv(
- transfer->dev_handle);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- int current_interface = *interface_number;
- int r = LIBUSB_SUCCESS;
-
- switch(api_type) {
- case USB_API_WINUSB:
- 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 == &usb_api_backend[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 windows_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 windows_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_strerror(r));
- }
- }
- }
- usbi_mutex_unlock(&autoclaim_lock);
-}
-#endif
-
-
-/*
- * init: libusb backend init function
- *
- * This function enumerates the HCDs (Host Controller Drivers) and populates our private HCD list
- * In our implementation, we equate Windows' "HCD" to LibUSB's "bus". Note that bus is zero indexed.
- * HCDs are not expected to change after init (might not hold true for hot pluggable USB PCI card?)
- */
-static int windows_init(struct libusb_context *ctx)
-{
- HDEVINFO dev_info;
- SP_DEVICE_INTERFACE_DETAIL_DATA *dev_interface_details = NULL;
- GUID guid;
- libusb_bus_t bus;
- int i, r = LIBUSB_ERROR_OTHER;
- OSVERSIONINFO os_version;
- HANDLE semaphore;
- struct windows_hcd_priv** _hcd_cur;
- TCHAR sem_name[11+1+8]; // strlen(libusb_init)+'\0'+(32-bit hex PID)
-
- sprintf(sem_name, "libusb_init%08X", (unsigned int)GetCurrentProcessId()&0xFFFFFFFF);
- semaphore = CreateSemaphore(NULL, 1, 1, sem_name);
- if (semaphore == NULL) {
- usbi_err(ctx, "could not create semaphore: %s", windows_error_str(0));
- return LIBUSB_ERROR_NO_MEM;
- }
-
- // A successful wait brings our semaphore count to 0 (unsignaled)
- // => any concurent wait stalls until the semaphore's release
- if (WaitForSingleObject(semaphore, INFINITE) != WAIT_OBJECT_0) {
- usbi_err(ctx, "failure to access semaphore: %s", windows_error_str(0));
- CloseHandle(semaphore);
- return LIBUSB_ERROR_NO_MEM;
- }
-
- // NB: concurrent usage supposes that init calls are equally balanced with
- // exit calls. If init is called more than exit, we will not exit properly
- if ( ++concurrent_usage == 0 ) { // First init?
- _hcd_cur = &hcd_root;
-
- // Detect OS version
- memset(&os_version, 0, sizeof(OSVERSIONINFO));
- os_version.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
- windows_version = WINDOWS_UNSUPPORTED;
- if ((GetVersionEx(&os_version) != 0) && (os_version.dwPlatformId == VER_PLATFORM_WIN32_NT)) {
- if ((os_version.dwMajorVersion == 5) && (os_version.dwMinorVersion == 1)) {
- windows_version = WINDOWS_XP;
- } else if ((os_version.dwMajorVersion == 5) && (os_version.dwMinorVersion == 2)) {
- windows_version = WINDOWS_2003; // also includes XP 64
- } else if (os_version.dwMajorVersion >= 6) {
- windows_version = WINDOWS_VISTA_AND_LATER;
- }
- }
- if (windows_version == WINDOWS_UNSUPPORTED) {
- usbi_err(ctx, "This version of Windows is NOT supported");
- r = LIBUSB_ERROR_NOT_SUPPORTED;
- goto init_exit;
- }
-
-#if defined(AUTO_CLAIM)
- // We need a lock for proper auto-release
- usbi_mutex_init(&autoclaim_lock, NULL);
-#endif
-
- // Initialize pollable file descriptors
- init_polling();
-
- // Load missing CFGMGR32.DLL imports
- if (Cfgmgr32_init() != LIBUSB_SUCCESS) {
- usbi_err(ctx, "could not resolve Cfgmgr32.dll functions");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- // Initialize the low level APIs (we don't care about errors at this stage)
- for (i=0; i<USB_API_MAX; i++) {
- usb_api_backend[i].init(ctx);
- }
-
- // Because QueryPerformanceCounter might report different values when
- // running on different cores, we create a separate thread for the timer
- // calls, which we glue to the first core always to prevent timing discrepancies.
- r = LIBUSB_ERROR_NO_MEM;
- for (i = 0; i < 2; i++) {
- timer_request[i] = CreateEvent(NULL, TRUE, FALSE, NULL);
- if (timer_request[i] == NULL) {
- usbi_err(ctx, "could not create timer request event %d - aborting", i);
- goto init_exit;
- }
- }
- timer_response = CreateSemaphore(NULL, 0, MAX_TIMER_SEMAPHORES, NULL);
- if (timer_response == NULL) {
- usbi_err(ctx, "could not create timer response semaphore - aborting");
- goto init_exit;
- }
- timer_mutex = CreateMutex(NULL, FALSE, NULL);
- if (timer_mutex == NULL) {
- usbi_err(ctx, "could not create timer mutex - aborting");
- goto init_exit;
- }
- timer_thread = (HANDLE)_beginthreadex(NULL, 0, windows_clock_gettime_threaded, NULL, 0, NULL);
- if (timer_thread == NULL) {
- usbi_err(ctx, "Unable to create timer thread - aborting");
- goto init_exit;
- }
- SetThreadAffinityMask(timer_thread, 0);
-
- guid = GUID_DEVINTERFACE_USB_HOST_CONTROLLER;
-
- r = LIBUSB_SUCCESS;
- for (bus = 0; ; bus++)
- {
- // safe loop: free up any (unprotected) dynamic resource
- // NB: this is always executed before breaking the loop
- safe_free(dev_interface_details);
- safe_free(*_hcd_cur);
-
- dev_interface_details = get_interface_details(ctx, &dev_info, NULL, guid, bus);
- // safe loop: end of loop condition
- if ((dev_interface_details == NULL) || (r != LIBUSB_SUCCESS))
- break;
-
- // Will need to change storage and size of libusb_bus_t if this ever occurs
- if (bus == LIBUSB_BUS_MAX) {
- usbi_warn(ctx, "program assertion failed - found more than %d buses, skipping the rest.", LIBUSB_BUS_MAX);
- continue;
- }
-
- // Allocate and init a new priv structure to hold our data
- if ((*_hcd_cur = malloc(sizeof(struct windows_hcd_priv))) == NULL) {
- usbi_err(ctx, "could not allocate private structure for bus %u. aborting.", bus);
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- windows_hcd_priv_init(*_hcd_cur);
- (*_hcd_cur)->path = sanitize_path(dev_interface_details->DevicePath);
-
- _hcd_cur = &((*_hcd_cur)->next);
- }
- // TODO (2nd official release): thread for hotplug (see darwin source)
- }
-
- if (hcd_root == NULL)
- r = LIBUSB_ERROR_NO_DEVICE;
- else
- r = LIBUSB_SUCCESS;
-
-init_exit: // Holds semaphore here.
- if(!concurrent_usage && r != LIBUSB_SUCCESS) { // First init failed?
- if (timer_thread) {
- SetEvent(timer_request[1]); // actually the signal to quit the thread.
- if (WAIT_OBJECT_0 != WaitForSingleObject(timer_thread, INFINITE)) {
- usbi_warn(ctx, "could not wait for timer thread to quit");
- TerminateThread(timer_thread, 1); // shouldn't happen, but we're destroying
- // all objects it might have held anyway.
- }
- CloseHandle(timer_thread);
- timer_thread = NULL;
- }
- for (i = 0; i < 2; i++) {
- if (timer_request[i]) {
- CloseHandle(timer_request[i]);
- timer_request[i] = NULL;
- }
- }
- if (timer_response) {
- CloseHandle(timer_response);
- timer_response = NULL;
- }
- if (timer_mutex) {
- CloseHandle(timer_mutex);
- timer_mutex = NULL;
- }
- }
-
- if (r != LIBUSB_SUCCESS)
- --concurrent_usage; // Not expected to call libusb_exit if we failed.
-
- ReleaseSemaphore(semaphore, 1, NULL); // increase count back to 1
- CloseHandle(semaphore);
- return r;
-}
-
-/*
- * Initialize device structure, including active config
- */
-static int initialize_device(struct libusb_device *dev, libusb_bus_t busnum,
- libusb_devaddr_t devaddr, char *path, int connection_index, uint8_t active_config,
- struct libusb_device *parent_dev)
-{
- struct windows_device_priv *priv = __device_priv(dev);
-
- windows_device_priv_init(priv);
-
- dev->bus_number = busnum;
- dev->device_address = devaddr;
- priv->path = path;
- priv->connection_index = connection_index;
- priv->parent_dev = parent_dev;
-
- priv->active_config = active_config;
-
- if (priv->active_config != 0) {
- usbi_dbg("active config: %d", priv->active_config);
- } else {
- // USB devices that don't have a config value are usually missing a driver
- // TODO (after first official release): use this for automated driver installation
- // NB: SetupDiGetDeviceRegistryProperty w/ SPDRP_INSTALL_STATE would tell us
- // if the driver is properly installed, but driverless devices don't seem to
- // be enumerable by SetupDi...
- usbi_dbg("* This device has no driver => libusb will not be able to access it *");
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * HCD (root) hubs need to have their device descriptor manually populated
- *
- * Note that we follow the Linux convention and use the "Linux Foundation root hub"
- * vendor ID as well as the product ID to indicate the hub speed
- */
-static int force_hcd_device_descriptor(struct libusb_device *dev, HANDLE handle)
-{
- DWORD size;
- USB_HUB_CAPABILITIES hub_caps;
- USB_HUB_CAPABILITIES_EX hub_caps_ex;
- struct windows_device_priv *priv = __device_priv(dev);
- struct libusb_context *ctx = DEVICE_CTX(dev);
-
- priv->dev_descriptor.bLength = sizeof(USB_DEVICE_DESCRIPTOR);
- priv->dev_descriptor.bDescriptorType = USB_DEVICE_DESCRIPTOR_TYPE;
- dev->num_configurations = priv->dev_descriptor.bNumConfigurations = 1;
-
- // The following is used to set the VIS:PID of root HUBs similarly to what
- // Linux does: 1d6b:0001 is for 1x root hubs, 1d6b:0002 for 2x
- priv->dev_descriptor.idVendor = 0x1d6b; // Linux Foundation root hub
- if (windows_version >= WINDOWS_VISTA_AND_LATER) {
- size = sizeof(USB_HUB_CAPABILITIES_EX);
- if (DeviceIoControl(handle, IOCTL_USB_GET_HUB_CAPABILITIES_EX, &hub_caps_ex,
- size, &hub_caps_ex, size, &size, NULL)) {
- // Sanity check. HCD hub should always be root
- if (!hub_caps_ex.CapabilityFlags.HubIsRoot) {
- usbi_warn(ctx, "program assertion failed - HCD hub is not reported as root hub.");
- }
- priv->dev_descriptor.idProduct = hub_caps_ex.CapabilityFlags.HubIsHighSpeedCapable?2:1;
- }
- } else {
- size = sizeof(USB_HUB_CAPABILITIES);
- if (!DeviceIoControl(handle, IOCTL_USB_GET_HUB_CAPABILITIES, &hub_caps,
- size, &hub_caps, size, &size, NULL)) {
- usbi_warn(ctx, "could not read hub capabilities (std) for hub %s: %s",
- priv->path, windows_error_str(0));
- priv->dev_descriptor.idProduct = 1; // Indicate 1x speed
- } else {
- priv->dev_descriptor.idProduct = hub_caps.HubIs2xCapable?2:1;
- }
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * fetch and cache all the config descriptors through I/O
- */
-static int cache_config_descriptors(struct libusb_device *dev, HANDLE hub_handle)
-{
- DWORD size, ret_size;
- struct libusb_context *ctx = DEVICE_CTX(dev);
- struct windows_device_priv *priv = __device_priv(dev);
- int r;
- 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 = NULL;
-
- if (dev->num_configurations == 0)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- priv->config_descriptor = malloc(dev->num_configurations * sizeof(PUSB_CONFIGURATION_DESCRIPTOR));
- if (priv->config_descriptor == NULL)
- return LIBUSB_ERROR_NO_MEM;
- for (i=0; i<dev->num_configurations; i++)
- priv->config_descriptor[i] = NULL;
-
- for (i=0, r=LIBUSB_SUCCESS; ; i++)
- {
- // safe loop: release all dynamic resources
- safe_free(cd_buf_actual);
-
- // safe loop: end of loop condition
- if ((i >= dev->num_configurations) || (r != LIBUSB_SUCCESS))
- break;
-
- size = sizeof(USB_CONFIGURATION_DESCRIPTOR_SHORT);
- memset(&cd_buf_short, 0, size);
-
- cd_buf_short.req.ConnectionIndex = priv->connection_index;
- cd_buf_short.req.SetupPacket.bmRequest = LIBUSB_ENDPOINT_IN;
- cd_buf_short.req.SetupPacket.bRequest = USB_REQUEST_GET_DESCRIPTOR;
- cd_buf_short.req.SetupPacket.wValue = (USB_CONFIGURATION_DESCRIPTOR_TYPE << 8) | i;
- cd_buf_short.req.SetupPacket.wIndex = i;
- cd_buf_short.req.SetupPacket.wLength = (USHORT)(size - sizeof(USB_DESCRIPTOR_REQUEST));
-
- // Dummy call to get the required data size
- if (!DeviceIoControl(hub_handle, IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION, &cd_buf_short, size,
- &cd_buf_short, size, &ret_size, NULL)) {
- usbi_err(ctx, "could not access configuration descriptor (dummy): %s", windows_error_str(0));
- LOOP_BREAK(LIBUSB_ERROR_IO);
- }
-
- if ((ret_size != size) || (cd_buf_short.data.wTotalLength < sizeof(USB_CONFIGURATION_DESCRIPTOR))) {
- usbi_err(ctx, "unexpected configuration descriptor size (dummy).");
- LOOP_BREAK(LIBUSB_ERROR_IO);
- }
-
- size = sizeof(USB_DESCRIPTOR_REQUEST) + cd_buf_short.data.wTotalLength;
- if ((cd_buf_actual = (PUSB_DESCRIPTOR_REQUEST)malloc(size)) == NULL) {
- usbi_err(ctx, "could not allocate configuration descriptor buffer. aborting.");
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- memset(cd_buf_actual, 0, size);
-
- // Actual call
- cd_buf_actual->ConnectionIndex = priv->connection_index;
- cd_buf_actual->SetupPacket.bmRequest = LIBUSB_ENDPOINT_IN;
- cd_buf_actual->SetupPacket.bRequest = USB_REQUEST_GET_DESCRIPTOR;
- cd_buf_actual->SetupPacket.wValue = (USB_CONFIGURATION_DESCRIPTOR_TYPE << 8) | i;
- cd_buf_actual->SetupPacket.wIndex = i;
- cd_buf_actual->SetupPacket.wLength = (USHORT)(size - sizeof(USB_DESCRIPTOR_REQUEST));
-
- 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 (actual): %s", windows_error_str(0));
- LOOP_BREAK(LIBUSB_ERROR_IO);
- }
-
- cd_data = (PUSB_CONFIGURATION_DESCRIPTOR)((UCHAR*)cd_buf_actual+sizeof(USB_DESCRIPTOR_REQUEST));
-
- if ((size != ret_size) || (cd_data->wTotalLength != cd_buf_short.data.wTotalLength)) {
- usbi_err(ctx, "unexpected configuration descriptor size (actual).");
- LOOP_BREAK(LIBUSB_ERROR_IO);
- }
-
- if (cd_data->bDescriptorType != USB_CONFIGURATION_DESCRIPTOR_TYPE) {
- usbi_err(ctx, "not a configuration descriptor");
- LOOP_BREAK(LIBUSB_ERROR_IO);
- }
-
- usbi_dbg("cached config descriptor #%d (%d bytes)", i+1, cd_data->wTotalLength);
-
- // Sanity check. Ensures that indexes for our list of config desc is in the right order
- if (i != (cd_data->bConfigurationValue-1)) {
- usbi_warn(ctx, "program assertion failed - config descriptors are being read out of order");
- continue;
- }
-
- // Cache the descriptor
- priv->config_descriptor[i] = malloc(cd_data->wTotalLength);
- if (priv->config_descriptor[i] == NULL)
- return LIBUSB_ERROR_NO_MEM;
-
- memcpy(priv->config_descriptor[i], cd_data, cd_data->wTotalLength);
- }
- return LIBUSB_SUCCESS;
-}
-
-/*
- * Recursively enumerates and finds all hubs & devices
- */
-static int usb_enumerate_hub(struct libusb_context *ctx, struct discovered_devs **_discdevs,
- HANDLE hub_handle, libusb_bus_t busnum, struct libusb_device *parent_dev, uint8_t nb_ports)
-{
- struct discovered_devs *discdevs = *_discdevs;
- struct libusb_device *dev = NULL;
- DWORD size, size_initial, size_fixed, getname_ioctl;
- HANDLE handle = INVALID_HANDLE_VALUE;
- USB_HUB_NAME_FIXED s_hubname;
- USB_NODE_CONNECTION_INFORMATION conn_info;
- USB_NODE_INFORMATION hub_node;
- bool is_hcd, need_unref = false;
- int i, r;
- LPCWSTR wstr;
- char *tmp_str = NULL, *path_str = NULL;
- unsigned long session_id;
- libusb_devaddr_t devaddr = 0;
- struct windows_device_priv *priv, *parent_priv;
-
- // obviously, root (HCD) hubs have no parent
- is_hcd = (parent_dev == NULL);
- if (is_hcd)
- {
- if (nb_ports != 1) {
- usbi_warn(ctx, "program assertion failed - invalid number of ports for HCD.");
- return LIBUSB_ERROR_INVALID_PARAM;
- }
- parent_priv = NULL;
- size_initial = sizeof(USB_ROOT_HUB_NAME);
- size_fixed = sizeof(USB_ROOT_HUB_NAME_FIXED);
- getname_ioctl = IOCTL_USB_GET_ROOT_HUB_NAME;
- }
- else
- {
- parent_priv = __device_priv(parent_dev);
- size_initial = sizeof(USB_NODE_CONNECTION_NAME);
- size_fixed = sizeof(USB_NODE_CONNECTION_NAME_FIXED);
- getname_ioctl = IOCTL_USB_GET_NODE_CONNECTION_NAME;
- }
-
- // Loop through all the ports on this hub
- for (i = 1, r = LIBUSB_SUCCESS; ; i++)
- {
- // safe loop: release all dynamic resources
- if (need_unref) {
- safe_unref_device(dev);
- need_unref = false;
- }
- safe_free(tmp_str);
- safe_free(path_str);
- safe_closehandle(handle);
-
- // safe loop: end of loop condition
- if ((i > nb_ports) || (r != LIBUSB_SUCCESS))
- break;
-
- memset(&conn_info, 0, sizeof(conn_info));
- // For non HCDs, check if the node on this port is a hub or a regular device
- if (!is_hcd) {
- size = sizeof(USB_NODE_CONNECTION_INFORMATION);
- conn_info.ConnectionIndex = i;
- if (!DeviceIoControl(hub_handle, IOCTL_USB_GET_NODE_CONNECTION_INFORMATION, &conn_info, size,
- &conn_info, size, &size, NULL)) {
- usbi_warn(ctx, "could not get node connection information: %s", windows_error_str(0));
- continue;
- }
-
- if (conn_info.ConnectionStatus == NoDeviceConnected) {
- continue;
- }
-
- if (conn_info.DeviceAddress == LIBUSB_DEVADDR_MAX) {
- usbi_warn(ctx, "program assertion failed - device address is %d "
- "(conflicts with root hub), ignoring device", LIBUSB_DEVADDR_MAX);
- continue;
- }
-
- s_hubname.u.node.ConnectionIndex = i; // Only used for non HCDs (s_hubname is an union)
- }
- else
- {
- // HCDs have only 1 node, and it's always a hub
- conn_info.DeviceAddress = LIBUSB_DEVADDR_MAX; // using 0 can conflict with driverless devices
- conn_info.DeviceIsHub = true;
- conn_info.CurrentConfigurationValue = 1;
- }
-
- // If this node is a hub (HCD or not), open it
- if (conn_info.DeviceIsHub) {
- size = size_initial;
- if (!DeviceIoControl(hub_handle, getname_ioctl, &s_hubname, size,
- &s_hubname, size, &size, NULL)) {
- usbi_warn(ctx, "could not get hub path (dummy): %s", windows_error_str(0));
- continue;
- }
-
- size = is_hcd?s_hubname.u.root.ActualLength:s_hubname.u.node.ActualLength;
- if (size > size_fixed) {
- usbi_warn(ctx, "program assertion failed - hub path is too long");
- continue;
- }
-
- if (!is_hcd) {
- // previous call trashes some of the data
- s_hubname.u.node.ConnectionIndex = i;
- }
- if (!DeviceIoControl(hub_handle, getname_ioctl, &s_hubname, size,
- &s_hubname, size, &size, NULL)) {
- usbi_warn(ctx, "could not get hub path (actual): %s", windows_error_str(0));
- continue;
- }
-
- // Add prefix
- wstr = is_hcd?s_hubname.u.root.RootHubName:s_hubname.u.node.NodeName;
- tmp_str = wchar_to_utf8(wstr);
- if (tmp_str == NULL) {
- usbi_err(ctx, "could not convert hub path string.");
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
-
- path_str = sanitize_path(tmp_str);
- if (path_str == NULL) {
- usbi_err(ctx, "could not sanitize hub path string.");
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
-
- // Open Hub
- handle = CreateFileA(path_str, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
- FILE_FLAG_OVERLAPPED, NULL);
- if(handle == INVALID_HANDLE_VALUE) {
- usbi_warn(ctx, "could not open hub %s: %s", path_str, windows_error_str(0));
- continue;
- }
- }
-
- // Generate a session ID
- // Will need to change the session_id computation if this assertion fails
- if (conn_info.DeviceAddress > LIBUSB_DEVADDR_MAX) {
- usbi_warn(ctx, "program assertion failed - device address is greater than %d, ignoring device",
- LIBUSB_DEVADDR_MAX);
- continue;
- } else {
- devaddr = (uint8_t)conn_info.DeviceAddress;
- }
- // Same trick as linux for session_id, with same caveat
- session_id = busnum << (sizeof(libusb_devaddr_t)*8) | devaddr;
- usbi_dbg("busnum %d devaddr %d session_id %ld", busnum, devaddr, session_id);
-
- // Allocate device if needed
- dev = usbi_get_device_by_session_id(ctx, session_id);
- if (dev) {
- usbi_dbg("using existing device for session %ld", session_id);
- priv = __device_priv(dev);
- // Because we are rebuilding the list, there's no guarantee
- // the parent device pointer is still the same.
- // Other device data should still be reusable
- priv->parent_dev = parent_dev;
- } else {
- usbi_dbg("allocating new device for session %ld", session_id);
- if ((dev = usbi_alloc_device(ctx, session_id)) == NULL) {
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
- need_unref = true;
-
- LOOP_CHECK(initialize_device(dev, busnum, devaddr, path_str, i,
- conn_info.CurrentConfigurationValue, parent_dev));
- priv = __device_priv(dev);
-
- path_str = NULL; // protect our path from being freed
-
- // Setup the cached descriptors. Note that only non HCDs can fetch descriptors
- if (!is_hcd) {
- // The device descriptor has been read with conn_info
- memcpy(&priv->dev_descriptor, &(conn_info.DeviceDescriptor), sizeof(USB_DEVICE_DESCRIPTOR));
- dev->num_configurations = priv->dev_descriptor.bNumConfigurations;
- // If we can't read the config descriptors, just set the number of confs to zero
- if (cache_config_descriptors(dev, hub_handle) != LIBUSB_SUCCESS) {
- dev->num_configurations = 0;
- priv->dev_descriptor.bNumConfigurations = 0;
- }
- } else {
- LOOP_CHECK(force_hcd_device_descriptor(dev, handle));
- }
- LOOP_CHECK(usbi_sanitize_device(dev));
- }
-
- discdevs = discovered_devs_append(*_discdevs, dev);
- if (!discdevs) {
- LOOP_BREAK(LIBUSB_ERROR_NO_MEM);
- }
-
- *_discdevs = discdevs;
-
- // Finally, if device is a hub, recurse
- if (conn_info.DeviceIsHub) {
- // Find number of ports for this hub
- size = sizeof(USB_NODE_INFORMATION);
- if (!DeviceIoControl(handle, IOCTL_USB_GET_NODE_INFORMATION, &hub_node, size,
- &hub_node, size, &size, NULL)) {
- usbi_warn(ctx, "could not retreive information for hub %s: %s",
- priv->path, windows_error_str(0));
- continue;
- }
-
- if (hub_node.NodeType != UsbHub) {
- usbi_warn(ctx, "unexpected hub type (%d) for hub %s", hub_node.NodeType, priv->path);
- continue;
- }
-
- usbi_dbg("%d ports Hub: %s", hub_node.u.HubInformation.HubDescriptor.bNumberOfPorts, priv->path);
-
- usb_enumerate_hub(ctx, _discdevs, handle, busnum, dev,
- hub_node.u.HubInformation.HubDescriptor.bNumberOfPorts);
- }
- }
-
- return r;
-}
-
-/*
- * Composite device interfaces are not enumerated using GUID_DEVINTERFACE_USB_DEVICE,
- * but instead require a different lookup mechanism
- */
-static int set_composite_device(struct libusb_context *ctx, DEVINST devinst, struct windows_device_priv *priv)
-{
-// indexes for additional interface GUIDs, not available from "USB"
-// SetupDiGetClassDevs enumeration should go here. Typically, these are
-// device interfaces that begin with something else than "\\?\usb\"
-enum libusb_hid_report_type {
- HID_DEVICE_INTERFACE_GUID_INDEX = 0,
- MAX_DEVICE_INTERFACE_GUID_INDEX = 1
-};
-
- DEVINST child_devinst, parent_devinst;
- unsigned i, j, max_guids, nb_paths, interface_number;
- uint8_t api;
- bool found;
- DWORD type, size;
- CONFIGRET r;
- HDEVINFO dev_info;
- SP_DEVINFO_DATA dev_info_data;
- SP_DEVICE_INTERFACE_DETAIL_DATA *dev_interface_details = NULL;
- HKEY key;
- WCHAR guid_string_w[MAX_GUID_STRING_LENGTH];
- GUID guid, class_guid;
- GUID guid_table[MAX_USB_DEVICES];
- char* sanitized_path[MAX_USB_DEVICES];
- char* hid_path[MAX_USB_DEVICES]; // An extra path is needed for HID
- uint8_t api_type[MAX_USB_DEVICES];
- char* sanitized_short = NULL;
- char path[MAX_PATH_LENGTH];
- char driver[MAX_KEY_LENGTH];
-
- dev_info = SetupDiGetClassDevs(NULL, "USB", NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES);
- if (dev_info == INVALID_HANDLE_VALUE) {
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- // Manually add the HID GUID as it cannot be read with DeviceInterfaceGUIDs reg key)
- // NB the value returned by HidD_GetHidGuid, which is for interface class is different
- // from GUID_HID, which is the device class GUID
- HidD_GetHidGuid(&guid_table[HID_DEVICE_INTERFACE_GUID_INDEX]);
- // NB: for other interface guids, SetupDiClassGuidsFromName can be used
- max_guids = MAX_DEVICE_INTERFACE_GUID_INDEX;
-
- // First, retrieve all the device interface GUIDs
- for (i = 0; ; i++)
- {
- dev_info_data.cbSize = sizeof(dev_info_data);
- if (!SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data)) {
- break;
- }
-
- key = SetupDiOpenDevRegKey(dev_info, &dev_info_data, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);
- if (key == INVALID_HANDLE_VALUE) {
- usbi_dbg("could not open registry key");
- continue;
- }
-
- size = sizeof(guid_string_w);
- r = RegQueryValueExW(key, L"DeviceInterfaceGUIDs", NULL, &type,
- (BYTE*)guid_string_w, &size);
- RegCloseKey(key);
- if (r != ERROR_SUCCESS) {
- continue;
- }
- CLSIDFromString(guid_string_w, &guid);
-
- // identical device interface GUIDs are not supposed to happen, but are a real possibility
- // => check and ignore duplicates
- found = false;
- for (j=0; j<max_guids; j++) {
- if (memcmp(&guid_table[j], &guid, sizeof(GUID)) == 0) {
- found = true;
- break;
- }
- }
- if (!found) {
- guid_table[max_guids++] = guid;
- if (max_guids > MAX_USB_DEVICES) {
- usbi_warn(ctx, "more than %d devices - ignoring the rest", MAX_USB_DEVICES);
- break;
- }
- }
- }
- SetupDiDestroyDeviceInfoList(dev_info);
-
- // Now let's find the device interface paths for all these devices
- nb_paths = 0;
- for (j=0; j<max_guids; j++)
- {
- guid = guid_table[j];
-
- for (i = 0; ; i++)
- {
- safe_free(dev_interface_details);
- dev_interface_details = get_interface_details(ctx, &dev_info, &dev_info_data, guid, i);
- if (dev_interface_details == NULL)
- break;
-
- // HID devices (and possibly other classes) have an extra indirection
- // for an USB path we can recognize
- if (j == HID_DEVICE_INTERFACE_GUID_INDEX) {
- if (CM_Get_Parent(&parent_devinst, dev_info_data.DevInst, 0) != CR_SUCCESS) {
- usbi_warn(ctx, "could not retrieve HID parent info data for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
-
- if (CM_Get_Device_ID(parent_devinst, path, MAX_PATH_LENGTH, 0) != CR_SUCCESS) {
- usbi_warn(ctx, "could not retrieve HID parent's path for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
- }
-
- // In case we can't read the driver string through SPDRP_SERVICE (which is
- // the case for HID), we need the ClassGUID for comparison.
- if(!SetupDiGetDeviceRegistryPropertyW(dev_info, &dev_info_data, SPDRP_CLASSGUID,
- NULL, (BYTE*)guid_string_w, sizeof(guid_string_w), &size)) {
- usbi_warn(ctx, "could not read class GUID for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
- CLSIDFromString(guid_string_w, &class_guid);
-
- // Attempt to read the driver string
- if(!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, SPDRP_SERVICE,
- NULL, (BYTE*)driver, MAX_KEY_LENGTH, &size)) {
- driver[0] = 0;
- }
-
- for (api=USB_API_WINUSB; api<USB_API_MAX; api++) {
- if ( (is_api_driver(driver, api))
- || (guid_eq(&class_guid, usb_api_backend[api].class_guid)) ) {
- api_type[nb_paths] = api;
- if (j == HID_DEVICE_INTERFACE_GUID_INDEX) {
- hid_path[nb_paths] = sanitize_path(path);
- } else {
- hid_path[nb_paths] = NULL;
- }
- sanitized_path[nb_paths++] = sanitize_path(dev_interface_details->DevicePath);
- if (nb_paths > MAX_USB_DEVICES) {
- usbi_warn(ctx, "more than %d devices - ignoring the rest", MAX_USB_DEVICES);
- break;
- }
- }
- }
- }
- }
-
- // Finally, match the interface paths with the interfaces. We do that
- // by looking at the children of the composite device
- // NB: if the interfaces are not found in their expected position,
- // claim_interface will issue a warning
- found = false;
- memset(&child_devinst, 0, sizeof(DEVINST)); // prevents /W4 warning
- for (i = 0; i<USB_MAXINTERFACES; i++)
- {
- if (i == 0) {
- r = CM_Get_Child(&child_devinst, devinst, 0);
- } else {
- r = CM_Get_Sibling(&child_devinst, child_devinst, 0);
- }
- if (r == CR_NO_SUCH_DEVNODE) { // end of the siblings
- break;
- } else if (r != CR_SUCCESS) {
- usbi_dbg("unable to find interface sibling #%d, error = %X", i, r);
- break;
- }
-
- r = CM_Get_Device_ID(child_devinst, path, MAX_PATH_LENGTH, 0);
- if (r != CR_SUCCESS) {
- usbi_err(ctx, "could not retrieve simple path for interface %d: CR error %d",
- i, r);
- continue;
- }
- sanitized_short = sanitize_path(path);
- if (sanitized_short == NULL) {
- usbi_err(ctx, "could not sanitize path for interface %d", i);
- continue;
- }
-
- // Because MI_## are not necessarily in sequential order (some composite HID
- // devices will have only MI_00 & MI_03 for instance), we retrieve the actual
- // interface number from the path's MI value
- interface_number = i;
- for (j=0; sanitized_short[j] != 0; ) {
- if ( (sanitized_short[j++] == 'M') && (sanitized_short[j++] == 'I')
- && (sanitized_short[j++] == '_') ) {
- interface_number = (sanitized_short[j++] - '0')*10;
- interface_number += sanitized_short[j] - '0';
- break;
- }
- }
- if (sanitized_short[j] == 0) {
- usbi_warn(ctx, "failure to read interface number for %s. Using default value %d",
- sanitized_short, interface_number);
- }
-
- for (j=0; j<nb_paths; j++) {
- if ( (safe_strncmp(sanitized_path[j], sanitized_short, safe_strlen(sanitized_short)) == 0)
- || (safe_strcmp(hid_path[j], sanitized_short) == 0 ) ) {
- // HID devices can have multiple collections (COL##) for each MI_## interface
- if (priv->usb_interface[interface_number].path != NULL) {
- usbi_dbg("interface_path[%d] already set - ignoring HID collection: %s",
- interface_number, sanitized_path[j]);
- if (api_type[j] != USB_API_HID) {
- usbi_warn(ctx, "program assertion failed - not an HID collection");
- }
- } else {
- priv->usb_interface[interface_number].path = sanitized_path[j];
- priv->usb_interface[interface_number].apib = &usb_api_backend[api_type[j]];
- if ((api_type[j] == USB_API_HID) && (priv->hid == NULL)) {
- priv->hid = calloc(1, sizeof(struct hid_device_priv));
- }
- priv->composite_api_flags |= 1<<api_type[j];
- sanitized_path[j] = NULL;
- }
- }
- }
- safe_free(sanitized_short);
-
- if (priv->usb_interface[interface_number].path == NULL) {
- usbi_warn(ctx, "interface_path[%d]: unhandled API - interface will be disabled",
- interface_number);
- continue;
- }
- usbi_dbg("interface_path[%d]: %s", interface_number, priv->usb_interface[interface_number].path);
- found = true;
- }
-
- for (j=0; j<nb_paths; j++) {
- safe_free(sanitized_path[j]);
- safe_free(hid_path[j]);
- }
-
- if (found == 0) {
- usbi_warn(ctx, "composite device: no interfaces were found");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * Likewise, HID device interfaces's path (\\.\HID\...) are not enumerated through the
- * generic USB devices GUID, but are actually children of one such device
- */
-static int set_hid_device(struct libusb_context *ctx, struct windows_device_priv *priv)
- {
- char path[MAX_PATH_LENGTH];
- char *sanitized_path = NULL;
- HDEVINFO dev_info;
- SP_DEVICE_INTERFACE_DETAIL_DATA *dev_interface_details = NULL;
- SP_DEVINFO_DATA dev_info_data;
- DEVINST parent_devinst;
- GUID guid;
- int r = LIBUSB_SUCCESS;
- unsigned i, interface_number;
-
- interface_number = 0;
- HidD_GetHidGuid(&guid);
- for (i = 0; ; i++)
- {
- // safe loop: free up any (unprotected) dynamic resource
- safe_free(dev_interface_details);
- safe_free(sanitized_path);
-
- dev_interface_details = get_interface_details(ctx, &dev_info, &dev_info_data, guid, i);
- // safe loop: end of loop condition
- if ( (dev_interface_details == NULL)
- || (r != LIBUSB_SUCCESS) )
- break;
-
- // Retrieve parent's path using PnP Configuration Manager (CM)
- if (CM_Get_Parent(&parent_devinst, dev_info_data.DevInst, 0) != CR_SUCCESS) {
- usbi_warn(ctx, "could not retrieve parent info data for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
-
- if (CM_Get_Device_ID(parent_devinst, path, MAX_PATH_LENGTH, 0) != CR_SUCCESS) {
- usbi_warn(ctx, "could not retrieve parent's path for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
-
- // Fix parent's path inconsistencies before attempting to compare
- sanitized_path = sanitize_path(path);
- if (sanitized_path == NULL) {
- usbi_warn(ctx, "could not sanitize parent's path for device %s, skipping.",
- dev_interface_details->DevicePath);
- continue;
- }
-
- // NB: we compare strings of different lengths below => strncmp
- if (safe_strncmp(priv->path, sanitized_path, safe_strlen(sanitized_path)) == 0) {
- priv->usb_interface[interface_number].path = sanitize_path(dev_interface_details->DevicePath);
- priv->usb_interface[interface_number].apib = &usb_api_backend[USB_API_HID];
- usbi_dbg("interface_path[%d]: %s", interface_number, priv->usb_interface[interface_number].path);
- interface_number++;
- }
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * This function retrieves and sets the paths of all non-hub devices
- * NB: No I/O with device is required during this call
- */
-static int set_device_paths(struct libusb_context *ctx, struct discovered_devs *discdevs)
-{
- // 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"}
- };
- struct windows_device_priv *priv;
- struct windows_device_priv *parent_priv;
- char path[MAX_PATH_LENGTH];
- char *sanitized_path = NULL;
- HDEVINFO dev_info;
- SP_DEVICE_INTERFACE_DETAIL_DATA *dev_interface_details = NULL;
- SP_DEVINFO_DATA dev_info_data;
- DEVINST parent_devinst;
- GUID guid;
- DWORD size, reg_type, install_state, port_nr;
- int r = LIBUSB_SUCCESS;
- unsigned i, j, k, l;
- uint8_t api;
- bool found;
-
- // TODO (after first official release): MI_## automated driver installation
- guid = GUID_DEVINTERFACE_USB_DEVICE;
- for (i = 0; ; i++)
- {
- // safe loop: free up any (unprotected) dynamic resource
- safe_free(dev_interface_details);
- safe_free(sanitized_path);
-
- dev_interface_details = get_interface_details(ctx, &dev_info, &dev_info_data, guid, i);
- // safe loop: end of loop condition
- if ( (dev_interface_details == NULL)
- || (r != LIBUSB_SUCCESS) )
- break;
-
- // Check that the driver installation is OK
- if ( (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, SPDRP_INSTALL_STATE,
- &reg_type, (BYTE*)&install_state, 4, &size))
- && (size != 4) ){
- usbi_warn(ctx, "could not detect installation state of driver for %s: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- } else if (install_state != 0) {
- usbi_warn(ctx, "driver for device %s is reporting an issue (code: %d) - skipping",
- dev_interface_details->DevicePath, install_state);
- continue;
- }
-
- // The SPDRP_ADDRESS for USB devices should be the device port number on the hub
- if ( (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, SPDRP_ADDRESS,
- &reg_type, (BYTE*)&port_nr, 4, &size))
- && (size != 4) ){
- usbi_warn(ctx, "could not retrieve port number for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
-
- // Retrieve parent's path using PnP Configuration Manager (CM)
- if (CM_Get_Parent(&parent_devinst, dev_info_data.DevInst, 0) != CR_SUCCESS) {
- usbi_warn(ctx, "could not retrieve parent info data for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
-
- if (CM_Get_Device_ID(parent_devinst, path, MAX_PATH_LENGTH, 0) != CR_SUCCESS) {
- usbi_warn(ctx, "could not retrieve parent's path for device %s, skipping: %s",
- dev_interface_details->DevicePath, windows_error_str(0));
- continue;
- }
-
- // Fix parent's path inconsistencies before attempting to compare
- sanitized_path = sanitize_path(path);
- if (sanitized_path == NULL) {
- usbi_warn(ctx, "could not sanitize parent's path for device %s, skipping.",
- dev_interface_details->DevicePath);
- continue;
- }
-
- // With the parent path and port number, we should be able to locate our device
- // by comparing these values to the ones we got when enumerating hubs
- found = false;
- for (j=0; j<discdevs->len; j++) {
- priv = __device_priv(discdevs->devices[j]);
-
- if (priv->parent_dev == NULL) {
- continue; // ignore HCDs
- }
-
- parent_priv = __device_priv(priv->parent_dev);
-
- // NB: we compare strings of different lengths below => strncmp
- if ( (safe_strncmp(parent_priv->path, sanitized_path, safe_strlen(sanitized_path)) == 0)
- && (port_nr == priv->connection_index) ) {
-
- priv->path = sanitize_path(dev_interface_details->DevicePath);
-
- usbi_dbg("path (%d:%d): %s", discdevs->devices[j]->bus_number,
- discdevs->devices[j]->device_address, priv->path);
-
- // Check the service & filter names to know the API we should use
- for (k=0; k<3; k++) {
- if (SetupDiGetDeviceRegistryPropertyA(dev_info, &dev_info_data, lookup[k].reg_prop,
- &reg_type, (BYTE*)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[safe_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;
- }
- }
- upperize(lookup[k].list);
- usbi_dbg("%s(s): %s", lookup[k].designation, lookup[k].list);
- found = true;
- } 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 (api=0; api<USB_API_MAX; api++) {
- for (k=0; k<3; k++) {
- if (is_api_driver(lookup[k].list, api)) {
- usbi_dbg("matched %s name against %s", lookup[k].designation, usb_api_backend[api].designation);
- break;
- }
- }
- if (k >= 3) continue;
- priv->apib = &usb_api_backend[api];
- switch(api) {
- case USB_API_COMPOSITE:
- set_composite_device(ctx, dev_info_data.DevInst, priv);
- break;
- case USB_API_HID:
- safe_free(priv->hid);
- priv->hid = calloc(1, sizeof(struct hid_device_priv));
- if (priv->hid == NULL) {
- usbi_err(ctx, "could not allocate HID data for %s, skipping",
- dev_interface_details->DevicePath);
- priv->apib = &usb_api_backend[USB_API_UNSUPPORTED];
- safe_free(priv->path);
- } else {
- set_hid_device(ctx, priv);
- }
- break;
- default:
- // For other devices, the first interface is the same as the device
- priv->usb_interface[0].path = malloc(safe_strlen(priv->path)+1);
- if (priv->usb_interface[0].path != NULL) {
- safe_strcpy(priv->usb_interface[0].path, safe_strlen(priv->path)+1, priv->path);
- }
- // The following is needed if we want to API calls to work for both simple
- // and composite devices, as
- for(k=0; k<USB_MAXINTERFACES; k++) {
- priv->usb_interface[k].apib = &usb_api_backend[api];
- }
- break;
- }
- }
- break;
- }
- }
- if (!found) {
- usbi_warn(ctx, "could not match %s with a libusb device.", dev_interface_details->DevicePath);
- continue;
- }
- }
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * get_device_list: libusb backend device enumeration function
- */
-static int windows_get_device_list(struct libusb_context *ctx, struct discovered_devs **_discdevs)
-{
- struct windows_hcd_priv* hcd;
- HANDLE handle = INVALID_HANDLE_VALUE;
- int r = LIBUSB_SUCCESS;
- libusb_bus_t bus;
-
- // Use the index of the HCD in the chained list as bus #
- for (hcd = hcd_root, bus = 0; ; hcd = hcd->next, bus++)
- {
- safe_closehandle(handle);
-
- if ( (hcd == NULL) || (r != LIBUSB_SUCCESS) )
- break;
-
- if (bus == LIBUSB_BUS_MAX) {
- usbi_warn(ctx, "program assertion failed - got more than %d buses, skipping the rest.", LIBUSB_BUS_MAX);
- continue;
- }
-
- handle = CreateFileA(hcd->path, GENERIC_WRITE, FILE_SHARE_WRITE,
- NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
- if (handle == INVALID_HANDLE_VALUE) {
- usbi_warn(ctx, "could not open bus %u, skipping: %s", bus, windows_error_str(0));
- continue;
- }
-
- LOOP_CHECK(usb_enumerate_hub(ctx, _discdevs, handle, bus, NULL, 1));
- }
-
- // Set the interface path for non-hubs
- r = set_device_paths(ctx, *_discdevs);
-
- return r;
-}
-
-/*
- * exit: libusb backend deinitialization function
- */
-static void windows_exit(void)
-{
- struct windows_hcd_priv* hcd_tmp;
- int i;
- HANDLE semaphore;
- TCHAR sem_name[11+1+8]; // strlen(libusb_init)+'\0'+(32-bit hex PID)
-
- sprintf(sem_name, "libusb_init%08X", (unsigned int)GetCurrentProcessId()&0xFFFFFFFF);
- semaphore = CreateSemaphore(NULL, 1, 1, sem_name);
- if (semaphore == NULL) {
- return;
- }
-
- // A successful wait brings our semaphore count to 0 (unsignaled)
- // => any concurent wait stalls until the semaphore release
- if (WaitForSingleObject(semaphore, INFINITE) != WAIT_OBJECT_0) {
- CloseHandle(semaphore);
- return;
- }
-
- // Only works if exits and inits are balanced exactly
- if (--concurrent_usage < 0) { // Last exit
- while (hcd_root != NULL)
- {
- hcd_tmp = hcd_root; // Keep a copy for free
- hcd_root = hcd_root->next;
- windows_hcd_priv_release(hcd_tmp);
- safe_free(hcd_tmp);
- }
-
- for (i=0; i<USB_API_MAX; i++) {
- usb_api_backend[i].exit();
- }
- exit_polling();
-
- if (timer_thread) {
- SetEvent(timer_request[1]); // actually the signal to quit the thread.
- if (WAIT_OBJECT_0 != WaitForSingleObject(timer_thread, INFINITE)) {
- usbi_dbg("could not wait for timer thread to quit");
- TerminateThread(timer_thread, 1);
- }
- CloseHandle(timer_thread);
- timer_thread = NULL;
- }
- for (i = 0; i < 2; i++) {
- if (timer_request[i]) {
- CloseHandle(timer_request[i]);
- timer_request[i] = NULL;
- }
- }
- if (timer_response) {
- CloseHandle(timer_response);
- timer_response = NULL;
- }
- if (timer_mutex) {
- CloseHandle(timer_mutex);
- timer_mutex = NULL;
- }
- }
-
- ReleaseSemaphore(semaphore, 1, NULL); // increase count back to 1
- CloseHandle(semaphore);
-}
-
-static int windows_get_device_descriptor(struct libusb_device *dev, unsigned char *buffer, int *host_endian)
-{
- struct windows_device_priv *priv = __device_priv(dev);
-
- memcpy(buffer, &(priv->dev_descriptor), DEVICE_DESC_LENGTH);
- *host_endian = 0;
-
- return LIBUSB_SUCCESS;
-}
-
-static int windows_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian)
-{
- struct windows_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 = (PUSB_CONFIGURATION_DESCRIPTOR)priv->config_descriptor[config_index];
-
- size = min(config_header->wTotalLength, len);
- memcpy(buffer, priv->config_descriptor[config_index], size);
-
- return LIBUSB_SUCCESS;
-}
-
-/*
- * return the cached copy of the active config descriptor
- */
-static int windows_get_active_config_descriptor(struct libusb_device *dev, unsigned char *buffer, size_t len, int *host_endian)
-{
- struct windows_device_priv *priv = __device_priv(dev);
-
- if (priv->active_config == 0)
- return LIBUSB_ERROR_NOT_FOUND;
-
- // config index is zero based
- return windows_get_config_descriptor(dev, (uint8_t)(priv->active_config-1), buffer, len, host_endian);
-}
-
-static int windows_open(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
-
- if (priv->apib == NULL) {
- usbi_err(ctx, "program assertion failed - device is not initialized");
- return LIBUSB_ERROR_NO_DEVICE;
- }
-
- return priv->apib->open(dev_handle);
-}
-
-static void windows_close(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
-
- priv->apib->close(dev_handle);
-}
-
-static int windows_get_configuration(struct libusb_device_handle *dev_handle, int *config)
-{
- struct windows_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 windows_set_configuration(struct libusb_device_handle *dev_handle, int config)
-{
- struct windows_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 windows_claim_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- int r = LIBUSB_SUCCESS;
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
-
- if (iface >= USB_MAXINTERFACES)
- return LIBUSB_ERROR_INVALID_PARAM;
-
- safe_free(priv->usb_interface[iface].endpoint);
- priv->usb_interface[iface].nb_endpoints= 0;
-
- r = priv->apib->claim_interface(dev_handle, iface);
-
- if (r == LIBUSB_SUCCESS) {
- r = windows_assign_endpoints(dev_handle->dev, iface, 0);
- }
-
- return r;
-}
-
-static int windows_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- int r = LIBUSB_SUCCESS;
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
-
- safe_free(priv->usb_interface[iface].endpoint);
- priv->usb_interface[iface].nb_endpoints= 0;
-
- r = priv->apib->set_interface_altsetting(dev_handle, iface, altsetting);
-
- if (r == LIBUSB_SUCCESS) {
- r = windows_assign_endpoints(dev_handle->dev, iface, altsetting);
- }
-
- return r;
-}
-
-static int windows_release_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
-
- windows_set_interface_altsetting(dev_handle, iface, 0);
- return priv->apib->release_interface(dev_handle, iface);
-}
-
-static int windows_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- return priv->apib->clear_halt(dev_handle, endpoint);
-}
-
-static int windows_reset_device(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- return priv->apib->reset_device(dev_handle);
-}
-
-// The 3 functions below are unlikely to ever get supported on Windows
-static int windows_kernel_driver_active(struct libusb_device_handle *dev_handle, int iface)
-{
- return LIBUSB_ERROR_NOT_SUPPORTED;
-}
-
-static int windows_attach_kernel_driver(struct libusb_device_handle *dev_handle, int iface)
-{
- return LIBUSB_ERROR_NOT_SUPPORTED;
-}
-
-static int windows_detach_kernel_driver(struct libusb_device_handle *dev_handle, int iface)
-{
- return LIBUSB_ERROR_NOT_SUPPORTED;
-}
-
-static void windows_destroy_device(struct libusb_device *dev)
-{
- struct windows_device_priv *priv = __device_priv(dev);
- windows_device_priv_release(priv, dev->num_configurations);
-}
-
-static void windows_clear_transfer_priv(struct usbi_transfer *itransfer)
-{
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
-
- usbi_free_fd(transfer_priv->pollable_fd.fd);
- safe_free(transfer_priv->hid_buffer);
-#if defined(AUTO_CLAIM)
- // When auto claim is in use, attempt to release the auto-claimed interface
- auto_release(itransfer);
-#endif
-}
-
-static int submit_bulk_transfer(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 windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- int r;
-
- r = priv->apib->submit_bulk_transfer(itransfer);
- if (r != LIBUSB_SUCCESS) {
- return r;
- }
-
- usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd,
- (short)((transfer->endpoint & LIBUSB_ENDPOINT_IN)?POLLIN:POLLOUT));
-#if !defined(DYNAMIC_FDS)
- usbi_fd_notification(ctx);
-#endif
-
- return LIBUSB_SUCCESS;
-}
-
-static int submit_iso_transfer(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 windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- int r;
-
- r = priv->apib->submit_iso_transfer(itransfer);
- if (r != LIBUSB_SUCCESS) {
- return r;
- }
-
- usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd,
- (short)((transfer->endpoint & LIBUSB_ENDPOINT_IN)?POLLIN:POLLOUT));
-#if !defined(DYNAMIC_FDS)
- usbi_fd_notification(ctx);
-#endif
-
- return LIBUSB_SUCCESS;
-}
-
-static int submit_control_transfer(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 windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- int r;
-
- r = priv->apib->submit_control_transfer(itransfer);
- if (r != LIBUSB_SUCCESS) {
- return r;
- }
-
- usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, POLLIN);
-#if !defined(DYNAMIC_FDS)
- usbi_fd_notification(ctx);
-#endif
-
- return LIBUSB_SUCCESS;
-
-}
-
-static int windows_submit_transfer(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
-
- switch (transfer->type) {
- case LIBUSB_TRANSFER_TYPE_CONTROL:
- return submit_control_transfer(itransfer);
- case LIBUSB_TRANSFER_TYPE_BULK:
- case LIBUSB_TRANSFER_TYPE_INTERRUPT:
- return submit_bulk_transfer(itransfer);
- case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
- return submit_iso_transfer(itransfer);
- default:
- usbi_err(TRANSFER_CTX(transfer), "unknown endpoint type %d", transfer->type);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-}
-
-static int windows_abort_control(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
-
- return priv->apib->abort_control(itransfer);
-}
-
-static int windows_abort_transfers(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
-
- return priv->apib->abort_transfers(itransfer);
-}
-
-static int windows_cancel_transfer(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
-#if defined(FORCE_INSTANT_TIMEOUTS)
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
-
- // Forces instant overlapped completion on timeouts - use at your own risks
- if (itransfer->flags & USBI_TRANSFER_TIMED_OUT) {
- transfer_priv->pollable_fd.overlapped->Internal &= ~STATUS_PENDING;
- }
-#endif
- 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);
- default:
- usbi_err(ITRANSFER_CTX(itransfer), "unknown endpoint type %d", transfer->type);
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-}
-
-static void windows_transfer_callback(struct usbi_transfer *itransfer, uint32_t io_result, uint32_t io_size)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- int status;
-
- usbi_dbg("handling I/O completion with errcode %d", io_result);
-
- switch(io_result) {
- case NO_ERROR:
- status = priv->apib->copy_transfer_data(itransfer, io_size);
- break;
- case ERROR_GEN_FAILURE:
- usbi_dbg("detected endpoint stall");
- status = LIBUSB_TRANSFER_STALL;
- break;
- case ERROR_SEM_TIMEOUT:
- usbi_dbg("detected semaphore timeout");
- status = LIBUSB_TRANSFER_TIMED_OUT;
- break;
- case ERROR_OPERATION_ABORTED:
- if (itransfer->flags & USBI_TRANSFER_TIMED_OUT) {
- usbi_dbg("detected timeout");
- status = LIBUSB_TRANSFER_TIMED_OUT;
- } else {
- usbi_dbg("detected operation aborted");
- status = LIBUSB_TRANSFER_CANCELLED;
- }
- break;
- default:
- usbi_err(ITRANSFER_CTX(itransfer), "detected I/O error: %s", windows_error_str(0));
- status = LIBUSB_TRANSFER_ERROR;
- break;
- }
- windows_clear_transfer_priv(itransfer); // Cancel polling
- usbi_handle_transfer_completion(itransfer, status);
-}
-
-static void windows_handle_callback (struct usbi_transfer *itransfer, uint32_t io_result, uint32_t io_size)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
-
- switch (transfer->type) {
- case LIBUSB_TRANSFER_TYPE_CONTROL:
- case LIBUSB_TRANSFER_TYPE_BULK:
- case LIBUSB_TRANSFER_TYPE_INTERRUPT:
- case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
- windows_transfer_callback (itransfer, io_result, io_size);
- break;
- default:
- usbi_err(ITRANSFER_CTX(itransfer), "unknown endpoint type %d", transfer->type);
- }
-}
-
-static int windows_handle_events(struct libusb_context *ctx, struct pollfd *fds, nfds_t nfds, int num_ready)
-{
- struct windows_transfer_priv* transfer_priv = NULL;
- nfds_t i = 0;
- bool found = false;
- struct usbi_transfer *transfer;
- DWORD io_size, io_result;
-
- usbi_mutex_lock(&ctx->open_devs_lock);
- for (i = 0; i < nfds && num_ready > 0; i++) {
-
- usbi_dbg("checking fd %d with revents = %04x", fds[i].fd, fds[i].revents);
-
- if (!fds[i].revents) {
- continue;
- }
-
- num_ready--;
-
- // Because a Windows OVERLAPPED is used for poll emulation,
- // a pollable fd is created and stored with each transfer
- usbi_mutex_lock(&ctx->flying_transfers_lock);
- list_for_each_entry(transfer, &ctx->flying_transfers, list, struct usbi_transfer) {
- transfer_priv = usbi_transfer_get_os_priv(transfer);
- if (transfer_priv->pollable_fd.fd == fds[i].fd) {
- found = true;
- break;
- }
- }
- usbi_mutex_unlock(&ctx->flying_transfers_lock);
-
- if (found) {
- // Handle async requests that completed synchronously first
- if (HasOverlappedIoCompletedSync(transfer_priv->pollable_fd.overlapped)) {
- io_result = NO_ERROR;
- io_size = (DWORD)transfer_priv->pollable_fd.overlapped->InternalHigh;
- // Regular async overlapped
- } else if (GetOverlappedResult(transfer_priv->pollable_fd.handle,
- transfer_priv->pollable_fd.overlapped, &io_size, false)) {
- io_result = NO_ERROR;
- } else {
- io_result = GetLastError();
- }
- usbi_remove_pollfd(ctx, transfer_priv->pollable_fd.fd);
- // let handle_callback free the event using the transfer wfd
- // If you don't use the transfer wfd, you run a risk of trying to free a
- // newly allocated wfd that took the place of the one from the transfer.
- windows_handle_callback(transfer, io_result, io_size);
- } else {
- usbi_err(ctx, "could not find a matching transfer for fd %x", fds[i]);
- return LIBUSB_ERROR_NOT_FOUND;
- }
- }
-
- usbi_mutex_unlock(&ctx->open_devs_lock);
- return LIBUSB_SUCCESS;
-}
-
-/*
- * Monotonic and real time functions
- */
-unsigned __stdcall windows_clock_gettime_threaded(void* param)
-{
- LARGE_INTEGER hires_counter, li_frequency;
- LONG nb_responses;
- int timer_index;
-
- // Init - find out if we have access to a monotonic (hires) timer
- if (!QueryPerformanceFrequency(&li_frequency)) {
- usbi_dbg("no hires timer available on this platform");
- hires_frequency = 0;
- hires_ticks_to_ps = UINT64_C(0);
- } else {
- hires_frequency = li_frequency.QuadPart;
- // The hires frequency can go as high as 4 GHz, so we'll use a conversion
- // to picoseconds to compute the tv_nsecs part in clock_gettime
- hires_ticks_to_ps = UINT64_C(1000000000000) / hires_frequency;
- usbi_dbg("hires timer available (Frequency: %"PRIu64" Hz)", hires_frequency);
- }
-
- // Main loop - wait for requests
- while (1) {
- timer_index = WaitForMultipleObjects(2, timer_request, FALSE, INFINITE) - WAIT_OBJECT_0;
- if ( (timer_index != 0) && (timer_index != 1) ) {
- usbi_dbg("failure to wait on requests: %s", windows_error_str(0));
- continue;
- }
- if (request_count[timer_index] == 0) {
- // Request already handled
- ResetEvent(timer_request[timer_index]);
- // There's still a possiblity that a thread sends a request between the
- // time we test request_count[] == 0 and we reset the event, in which case
- // the request would be ignored. The simple solution to that is to test
- // request_count again and process requests if non zero.
- if (request_count[timer_index] == 0)
- continue;
- }
- switch (timer_index) {
- case 0:
- WaitForSingleObject(timer_mutex, INFINITE);
- // Requests to this thread are for hires always
- if (QueryPerformanceCounter(&hires_counter) != 0) {
- timer_tp.tv_sec = (long)(hires_counter.QuadPart / hires_frequency);
- timer_tp.tv_nsec = (long)(((hires_counter.QuadPart % hires_frequency)/1000) * hires_ticks_to_ps);
- } else {
- // Fallback to real-time if we can't get monotonic value
- // Note that real-time clock does not wait on the mutex or this thread.
- windows_clock_gettime(USBI_CLOCK_REALTIME, &timer_tp);
- }
- ReleaseMutex(timer_mutex);
-
- nb_responses = InterlockedExchange((LONG*)&request_count[0], 0);
- if ( (nb_responses)
- && (ReleaseSemaphore(timer_response, nb_responses, NULL) == 0) ) {
- usbi_dbg("unable to release timer semaphore %d: %s", windows_error_str(0));
- }
- continue;
- case 1: // time to quit
- usbi_dbg("timer thread quitting");
- return 0;
- }
- }
- usbi_dbg("ERROR: broken timer thread");
- return 1;
-}
-
-static int windows_clock_gettime(int clk_id, struct timespec *tp)
-{
- FILETIME filetime;
- ULARGE_INTEGER rtime;
- DWORD r;
- switch(clk_id) {
- case USBI_CLOCK_MONOTONIC:
- if (hires_frequency != 0) {
- while (1) {
- InterlockedIncrement((LONG*)&request_count[0]);
- SetEvent(timer_request[0]);
- r = WaitForSingleObject(timer_response, TIMER_REQUEST_RETRY_MS);
- switch(r) {
- case WAIT_OBJECT_0:
- WaitForSingleObject(timer_mutex, INFINITE);
- *tp = timer_tp;
- ReleaseMutex(timer_mutex);
- return LIBUSB_SUCCESS;
- case WAIT_TIMEOUT:
- usbi_dbg("could not obtain a timer value within reasonable timeframe - too much load?");
- break; // Retry until successful
- default:
- usbi_dbg("WaitForSingleObject failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_OTHER;
- }
- }
- }
- // Fall through and return real-time if monotonic was not detected @ timer init
- case USBI_CLOCK_REALTIME:
- // We follow http://msdn.microsoft.com/en-us/library/ms724928%28VS.85%29.aspx
- // with a predef epoch_time to have an epoch that starts at 1970.01.01 00:00
- // Note however that our resolution is bounded by the Windows system time
- // functions and is at best of the order of 1 ms (or, usually, worse)
- GetSystemTimeAsFileTime(&filetime);
- rtime.LowPart = filetime.dwLowDateTime;
- rtime.HighPart = filetime.dwHighDateTime;
- rtime.QuadPart -= epoch_time;
- tp->tv_sec = (long)(rtime.QuadPart / 10000000);
- tp->tv_nsec = (long)((rtime.QuadPart % 10000000)*100);
- return LIBUSB_SUCCESS;
- default:
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-}
-
-
-// NB: MSVC6 does not support named initializers.
-const struct usbi_os_backend windows_backend = {
- "Windows",
- windows_init,
- windows_exit,
-
- windows_get_device_list,
- windows_open,
- windows_close,
-
- windows_get_device_descriptor,
- windows_get_active_config_descriptor,
- windows_get_config_descriptor,
-
- windows_get_configuration,
- windows_set_configuration,
- windows_claim_interface,
- windows_release_interface,
-
- windows_set_interface_altsetting,
- windows_clear_halt,
- windows_reset_device,
-
- windows_kernel_driver_active,
- windows_detach_kernel_driver,
- windows_attach_kernel_driver,
-
- windows_destroy_device,
-
- windows_submit_transfer,
- windows_cancel_transfer,
- windows_clear_transfer_priv,
-
- windows_handle_events,
-
- windows_clock_gettime,
-#if defined(USBI_TIMERFD_AVAILABLE)
- NULL,
-#endif
- sizeof(struct windows_device_priv),
- sizeof(struct windows_device_handle_priv),
- sizeof(struct windows_transfer_priv),
- 0,
-};
-
-
-/*
- * USB API backends
- */
-static int unsupported_init(struct libusb_context *ctx) {
- return LIBUSB_SUCCESS;
-}
-static int unsupported_exit(void) {
- return LIBUSB_SUCCESS;
-}
-static int unsupported_open(struct libusb_device_handle *dev_handle) {
- PRINT_UNSUPPORTED_API(open);
-}
-static void unsupported_close(struct libusb_device_handle *dev_handle) {
- usbi_dbg("unsupported API call for 'close'");
-}
-static int unsupported_claim_interface(struct libusb_device_handle *dev_handle, int iface) {
- PRINT_UNSUPPORTED_API(claim_interface);
-}
-static int unsupported_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting) {
- PRINT_UNSUPPORTED_API(set_interface_altsetting);
-}
-static int unsupported_release_interface(struct libusb_device_handle *dev_handle, int iface) {
- PRINT_UNSUPPORTED_API(release_interface);
-}
-static int unsupported_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint) {
- PRINT_UNSUPPORTED_API(clear_halt);
-}
-static int unsupported_reset_device(struct libusb_device_handle *dev_handle) {
- PRINT_UNSUPPORTED_API(reset_device);
-}
-static int unsupported_submit_bulk_transfer(struct usbi_transfer *itransfer) {
- PRINT_UNSUPPORTED_API(submit_bulk_transfer);
-}
-static int unsupported_submit_iso_transfer(struct usbi_transfer *itransfer) {
- PRINT_UNSUPPORTED_API(submit_iso_transfer);
-}
-static int unsupported_submit_control_transfer(struct usbi_transfer *itransfer) {
- PRINT_UNSUPPORTED_API(submit_control_transfer);
-}
-static int unsupported_abort_control(struct usbi_transfer *itransfer) {
- PRINT_UNSUPPORTED_API(abort_control);
-}
-static int unsupported_abort_transfers(struct usbi_transfer *itransfer) {
- PRINT_UNSUPPORTED_API(abort_transfers);
-}
-static int unsupported_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size) {
- PRINT_UNSUPPORTED_API(copy_transfer_data);
-}
-
-// These names must be uppercase
-const char* composite_driver_names[] = {"USBCCGP"};
-const char* winusb_driver_names[] = {"WINUSB"};
-const char* hid_driver_names[] = {"HIDUSB", "MOUHID", "KBDHID"};
-const struct windows_usb_api_backend usb_api_backend[USB_API_MAX] = {
- {
- USB_API_UNSUPPORTED,
- "Unsupported API",
- &CLASS_GUID_UNSUPPORTED,
- NULL,
- 0,
- unsupported_init,
- unsupported_exit,
- unsupported_open,
- unsupported_close,
- unsupported_claim_interface,
- unsupported_set_interface_altsetting,
- unsupported_release_interface,
- unsupported_clear_halt,
- unsupported_reset_device,
- unsupported_submit_bulk_transfer,
- unsupported_submit_iso_transfer,
- unsupported_submit_control_transfer,
- unsupported_abort_control,
- unsupported_abort_transfers,
- unsupported_copy_transfer_data,
- }, {
- USB_API_COMPOSITE,
- "Composite API",
- &CLASS_GUID_COMPOSITE,
- composite_driver_names,
- sizeof(composite_driver_names)/sizeof(composite_driver_names[0]),
- composite_init,
- composite_exit,
- composite_open,
- composite_close,
- 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_WINUSB,
- "WinUSB API",
- &CLASS_GUID_LIBUSB_WINUSB,
- winusb_driver_names,
- sizeof(winusb_driver_names)/sizeof(winusb_driver_names[0]),
- winusb_init,
- winusb_exit,
- winusb_open,
- winusb_close,
- winusb_claim_interface,
- winusb_set_interface_altsetting,
- winusb_release_interface,
- winusb_clear_halt,
- winusb_reset_device,
- winusb_submit_bulk_transfer,
- unsupported_submit_iso_transfer,
- winusb_submit_control_transfer,
- winusb_abort_control,
- winusb_abort_transfers,
- winusb_copy_transfer_data,
- }, {
- USB_API_HID,
- "HID API",
- &CLASS_GUID_HID,
- hid_driver_names,
- sizeof(hid_driver_names)/sizeof(hid_driver_names[0]),
- hid_init,
- hid_exit,
- hid_open,
- hid_close,
- hid_claim_interface,
- hid_set_interface_altsetting,
- hid_release_interface,
- hid_clear_halt,
- hid_reset_device,
- hid_submit_bulk_transfer,
- unsupported_submit_iso_transfer,
- hid_submit_control_transfer,
- hid_abort_transfers,
- hid_abort_transfers,
- hid_copy_transfer_data,
- },
-};
-
-
-/*
- * WinUSB API functions
- */
-static int winusb_init(struct libusb_context *ctx)
-{
- DLL_LOAD(winusb.dll, WinUsb_Initialize, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_Free, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_GetAssociatedInterface, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_GetDescriptor, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_QueryInterfaceSettings, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_QueryDeviceInformation, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_SetCurrentAlternateSetting, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_GetCurrentAlternateSetting, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_QueryPipe, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_SetPipePolicy, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_GetPipePolicy, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_ReadPipe, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_WritePipe, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_ControlTransfer, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_ResetPipe, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_AbortPipe, TRUE);
- DLL_LOAD(winusb.dll, WinUsb_FlushPipe, TRUE);
-
- api_winusb_available = true;
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_exit(void)
-{
- return LIBUSB_SUCCESS;
-}
-
-// 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 winusb_open(struct libusb_device_handle *dev_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
-
- HANDLE file_handle;
- int i;
-
- CHECK_WINUSB_AVAILABLE;
-
- // WinUSB requires a seperate 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_WINUSB) ) {
- 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 winusb_close(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- HANDLE file_handle;
- int i;
-
- if (!api_winusb_available)
- return;
-
- for (i = 0; i < USB_MAXINTERFACES; i++) {
- if (priv->usb_interface[i].apib->id == USB_API_WINUSB) {
- file_handle = handle_priv->interface_handle[i].dev_handle;
- if ( (file_handle != 0) && (file_handle != INVALID_HANDLE_VALUE)) {
- CloseHandle(file_handle);
- }
- }
- }
-}
-
-static int winusb_claim_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- bool is_composite = (priv->apib->id == USB_API_COMPOSITE);
- HANDLE file_handle, winusb_handle;
- USB_INTERFACE_DESCRIPTOR if_desc;
- UCHAR policy;
- uint8_t endpoint_address;
- int i;
-
- CHECK_WINUSB_AVAILABLE;
-
- // interfaces for composite devices are always independent, therefore
- // "alt" interfaces are only found on non-composite
- if ((!is_composite) && (iface != 0)) {
- winusb_handle = handle_priv->interface_handle[0].api_handle;
- // It is a requirement on Windows that to claim an interface >= 1
- // on a non-composite WinUSB device, you must first have claimed interface 0
- if ((winusb_handle == 0) || (winusb_handle == INVALID_HANDLE_VALUE)) {
-#if defined(AUTO_CLAIM)
- file_handle = handle_priv->interface_handle[0].dev_handle;
- if (WinUsb_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)", iface);
- return LIBUSB_ERROR_ACCESS;
- }
-#else
- usbi_warn(ctx, "you must claim interface 0 before you can claim %d with WinUSB", iface);
- return LIBUSB_ERROR_ACCESS;
-#endif
- }
- if (!WinUsb_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;
- }
- }
- } else {
- // composite device (independent interfaces) or interface 0
- winusb_handle = handle_priv->interface_handle[iface].api_handle;
- file_handle = handle_priv->interface_handle[iface].dev_handle;
- if ((file_handle == 0) || (file_handle == INVALID_HANDLE_VALUE)) {
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- if (!WinUsb_Initialize(file_handle, &winusb_handle)) {
- usbi_err(ctx, "could not access interface %d: %s", iface, windows_error_str(0));
- handle_priv->interface_handle[iface].api_handle = INVALID_HANDLE_VALUE;
-
- switch(GetLastError()) {
- case ERROR_BAD_COMMAND: // The device was disconnected
- return LIBUSB_ERROR_NO_DEVICE;
- default:
- usbi_err(ctx, "could not claim interface %d: %s", iface, windows_error_str(0));
- return LIBUSB_ERROR_ACCESS;
- }
- }
- handle_priv->interface_handle[iface].api_handle = winusb_handle;
- }
- if (!WinUsb_QueryInterfaceSettings(winusb_handle, 0, &if_desc)) {
- usbi_err(ctx, "could not query interface settings for interface %d: %s", iface, windows_error_str(0));
- } else if (if_desc.bInterfaceNumber != iface) {
- usbi_warn(ctx, "program assertion failed - WinUSB interface %d found at position %d",
- if_desc.bInterfaceNumber, iface);
- }
-
- usbi_dbg("claimed interface %d", iface);
- handle_priv->active_interface = iface;
-
- // With handle and enpoints set (in parent), we can setup the default
- // pipe properties (copied from libusb-win32-v1)
- // see http://download.microsoft.com/download/D/1/D/D1DD7745-426B-4CC3-A269-ABBBE427C0EF/DVC-T705_DDC08.pptx
- for (i=0; i<priv->usb_interface[iface].nb_endpoints; i++) {
- endpoint_address = priv->usb_interface[iface].endpoint[i];
- policy = false;
- if (!WinUsb_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 (!WinUsb_SetPipePolicy(winusb_handle, endpoint_address,
- IGNORE_SHORT_PACKETS, sizeof(UCHAR), &policy)) {
- usbi_dbg("failed to disable IGNORE_SHORT_PACKETS for endpoint %02X", endpoint_address);
- }
- if (!WinUsb_SetPipePolicy(winusb_handle, endpoint_address,
- ALLOW_PARTIAL_READS, sizeof(UCHAR), &policy)) {
- usbi_dbg("failed to disable ALLOW_PARTIAL_READS for endpoint %02X", endpoint_address);
- }
- policy = true;
- if (!WinUsb_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 winusb_release_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- HANDLE winusb_handle;
-
- CHECK_WINUSB_AVAILABLE;
-
- winusb_handle = handle_priv->interface_handle[iface].api_handle;
- if ((winusb_handle == 0) || (winusb_handle == INVALID_HANDLE_VALUE)) {
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- WinUsb_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 windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- int i;
-
- if ((api_id < USB_API_WINUSB) || (api_id > USB_API_HID)) {
- usbi_dbg("unsupported API ID");
- return -1;
- }
-
- for (i=0; i<USB_MAXINTERFACES; i++) {
- if ( (handle_priv->interface_handle[i].dev_handle != 0)
- && (handle_priv->interface_handle[i].dev_handle != INVALID_HANDLE_VALUE)
- && (handle_priv->interface_handle[i].api_handle != 0)
- && (handle_priv->interface_handle[i].api_handle != INVALID_HANDLE_VALUE)
- && (priv->usb_interface[i].apib == &usb_api_backend[api_id]) ) {
- return i;
- }
- }
- return -1;
-}
-
-/*
- * Lookup interface by endpoint address. -1 if not found
- */
-static int interface_by_endpoint(struct windows_device_priv *priv,
- struct windows_device_handle_priv *handle_priv, uint8_t endpoint_address)
-{
- int i, j;
- for (i=0; i<USB_MAXINTERFACES; i++) {
- if (handle_priv->interface_handle[i].api_handle == INVALID_HANDLE_VALUE)
- continue;
- if (handle_priv->interface_handle[i].api_handle == 0)
- 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 winusb_submit_control_transfer(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 windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(
- transfer->dev_handle);
- WINUSB_SETUP_PACKET *setup = (WINUSB_SETUP_PACKET *) transfer->buffer;
- ULONG size;
- HANDLE winusb_handle;
- int current_interface;
- struct winfd wfd;
-
- CHECK_WINUSB_AVAILABLE;
-
- transfer_priv->pollable_fd = INVALID_WINFD;
- 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_WINUSB);
- if (current_interface < 0) {
-#if defined(AUTO_CLAIM)
- if (auto_claim(transfer, &current_interface, USB_API_WINUSB) != LIBUSB_SUCCESS) {
- return LIBUSB_ERROR_NOT_FOUND;
- }
-#else
- usbi_warn(ctx, "no interface available for control transfer");
- return LIBUSB_ERROR_NOT_FOUND;
-#endif
- }
-
- usbi_dbg("will use interface %d", current_interface);
- winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
-
- wfd = usbi_create_fd(winusb_handle, _O_RDONLY);
- // Always use the handle returned from usbi_create_fd (wfd.handle)
- if (wfd.fd < 0) {
- return LIBUSB_ERROR_NO_MEM;
- }
-
- if (!WinUsb_ControlTransfer(wfd.handle, *setup, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, size, NULL, wfd.overlapped)) {
- if(GetLastError() != ERROR_IO_PENDING) {
- usbi_err(ctx, "WinUsb_ControlTransfer failed: %s", windows_error_str(0));
- usbi_free_fd(wfd.fd);
- return LIBUSB_ERROR_IO;
- }
- } else {
- wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
- wfd.overlapped->InternalHigh = (DWORD)size;
- }
-
- // Use priv_transfer to store data needed for async polling
- transfer_priv->pollable_fd = wfd;
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- HANDLE winusb_handle;
-
- CHECK_WINUSB_AVAILABLE;
-
- if (altsetting > 255) {
- return LIBUSB_ERROR_INVALID_PARAM;
- }
-
- winusb_handle = handle_priv->interface_handle[iface].api_handle;
- if ((winusb_handle == 0) || (winusb_handle == INVALID_HANDLE_VALUE)) {
- usbi_err(ctx, "interface must be claimed first");
- return LIBUSB_ERROR_NOT_FOUND;
- }
-
- if (!WinUsb_SetCurrentAlternateSetting(winusb_handle, (UCHAR)altsetting)) {
- usbi_err(ctx, "WinUsb_SetCurrentAlternateSetting failed: %s", windows_error_str(0));
- return LIBUSB_ERROR_IO;
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_submit_bulk_transfer(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 windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(transfer->dev_handle);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- HANDLE winusb_handle;
- bool direction_in, ret;
- int current_interface;
- struct winfd wfd;
-
- CHECK_WINUSB_AVAILABLE;
-
- transfer_priv->pollable_fd = INVALID_WINFD;
-
- 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);
-
- winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
- direction_in = transfer->endpoint & LIBUSB_ENDPOINT_IN;
-
- wfd = usbi_create_fd(winusb_handle, direction_in?_O_RDONLY:_O_WRONLY);
- // Always use the handle returned from usbi_create_fd (wfd.handle)
- if (wfd.fd < 0) {
- return LIBUSB_ERROR_NO_MEM;
- }
-
- if (direction_in) {
- usbi_dbg("reading %d bytes", transfer->length);
- ret = WinUsb_ReadPipe(wfd.handle, transfer->endpoint, transfer->buffer, transfer->length, NULL, wfd.overlapped);
- } else {
- usbi_dbg("writing %d bytes", transfer->length);
- ret = WinUsb_WritePipe(wfd.handle, transfer->endpoint, transfer->buffer, transfer->length, NULL, wfd.overlapped);
- }
- if (!ret) {
- if(GetLastError() != ERROR_IO_PENDING) {
- usbi_err(ctx, "WinUsb_Pipe Transfer failed: %s", windows_error_str(0));
- usbi_free_fd(wfd.fd);
- return LIBUSB_ERROR_IO;
- }
- } else {
- wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
- wfd.overlapped->InternalHigh = (DWORD)transfer->length;
- }
-
- transfer_priv->pollable_fd = wfd;
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- HANDLE winusb_handle;
- int current_interface;
-
- CHECK_WINUSB_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);
- winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
-
- if (!WinUsb_ResetPipe(winusb_handle, endpoint)) {
- usbi_err(ctx, "WinUsb_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 winusb_abort_control(struct usbi_transfer *itransfer)
-{
- // Cancelling of the I/O is done in the parent
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_abort_transfers(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 windows_device_handle_priv *handle_priv = __device_handle_priv(transfer->dev_handle);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- HANDLE winusb_handle;
- int current_interface;
-
- CHECK_WINUSB_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);
-
- winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
-
- if (!WinUsb_AbortPipe(winusb_handle, transfer->endpoint)) {
- usbi_err(ctx, "WinUsb_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 (2nd official release): see if we can force eject the device and redetect it (reuse hotplug?)
-static int winusb_reset_device(struct libusb_device_handle *dev_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- struct winfd wfd;
- HANDLE winusb_handle;
- int i, j;
-
- CHECK_WINUSB_AVAILABLE;
-
- // Reset any available pipe (except control)
- for (i=0; i<USB_MAXINTERFACES; i++) {
- winusb_handle = handle_priv->interface_handle[i].api_handle;
- for (wfd = handle_to_winfd(winusb_handle); wfd.fd > 0;)
- {
- // Cancel any pollable I/O
- usbi_remove_pollfd(ctx, wfd.fd);
- usbi_free_fd(wfd.fd);
- wfd = handle_to_winfd(winusb_handle);
- }
-
- if ( (winusb_handle != 0) && (winusb_handle != INVALID_HANDLE_VALUE)) {
- for (j=0; j<priv->usb_interface[i].nb_endpoints; j++) {
- usbi_dbg("resetting ep %02X", priv->usb_interface[i].endpoint[j]);
- if (!WinUsb_AbortPipe(winusb_handle, priv->usb_interface[i].endpoint[j])) {
- usbi_err(ctx, "WinUsb_AbortPipe (pipe address %02X) failed: %s",
- priv->usb_interface[i].endpoint[j], windows_error_str(0));
- }
- // FlushPipe seems to fail on OUT pipes
- if ( (priv->usb_interface[i].endpoint[j] & LIBUSB_ENDPOINT_IN)
- && (!WinUsb_FlushPipe(winusb_handle, priv->usb_interface[i].endpoint[j])) ) {
- usbi_err(ctx, "WinUsb_FlushPipe (pipe address %02X) failed: %s",
- priv->usb_interface[i].endpoint[j], windows_error_str(0));
- }
- if (!WinUsb_ResetPipe(winusb_handle, priv->usb_interface[i].endpoint[j])) {
- usbi_err(ctx, "WinUsb_ResetPipe (pipe address %02X) failed: %s",
- priv->usb_interface[i].endpoint[j], windows_error_str(0));
- }
- }
- }
- }
-
- return LIBUSB_SUCCESS;
-}
-
-static int winusb_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size)
-{
- 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++;
- }
-
- 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)
-{
- void *tmp = NULL;
- 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) { // not found
- return LIBUSB_ERROR_INVALID_PARAM;
- }
- }
-
- 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 (0xFFA0 == vendor defined) */
- d[i++] = 0x06; d[i++] = 0xA0; d[i++] = 0xFF;
- /* usage (vendor defined) */
- d[i++] = 0x09; d[i++] = 0x01;
- /* 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);
- 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_INVALID_PARAM;
-}
-
-static int _hid_get_report(struct hid_device_priv* dev, HANDLE hid_handle, int id, void *data,
- struct windows_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 (%d)", *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;
- }
-
- // When report IDs are not in use, add an extra byte for the report ID
- if (id==0) {
- expected_size++;
- }
-
- // Add a trailing byte to detect overflows
- buf = (uint8_t*)calloc(expected_size+1, 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;
-
- 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));
- safe_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_dbg("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;
- }
-
- if (id == 0) {
- // Discard report ID
- *size = MIN((size_t)read_size-1, *size);
- memcpy(data, buf+1, *size);
- } else {
- *size = MIN((size_t)read_size, *size);
- memcpy(data, buf, *size);
- }
- }
- safe_free(buf);
- return r;
-}
-
-static int _hid_set_report(struct hid_device_priv* dev, HANDLE hid_handle, int id, void *data,
- struct windows_transfer_priv *tp, size_t *size, OVERLAPPED* overlapped,
- int report_type)
-{
- uint8_t *buf = NULL;
- DWORD ioctl_code, write_size= (DWORD)*size;
-
- 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 (%d)", *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);
- }
- }
-
- 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));
- safe_free(buf);
- return LIBUSB_ERROR_IO;
- }
- tp->hid_buffer = buf;
- tp->hid_dest = NULL;
- return LIBUSB_SUCCESS;
- }
-
- // Transfer completed synchronously
- if (write_size == 0) {
- usbi_dbg("program assertion failed - write completed synchronously, but no data was written");
- *size = 0;
- } else {
- *size = write_size - ((id == 0)?1:0);
- }
- safe_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 windows_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_LOAD(hid.dll, HidD_GetAttributes, TRUE);
- DLL_LOAD(hid.dll, HidD_GetHidGuid, TRUE);
- DLL_LOAD(hid.dll, HidD_GetPreparsedData, TRUE);
- DLL_LOAD(hid.dll, HidD_FreePreparsedData, TRUE);
- DLL_LOAD(hid.dll, HidD_GetManufacturerString, TRUE);
- DLL_LOAD(hid.dll, HidD_GetProductString, TRUE);
- DLL_LOAD(hid.dll, HidD_GetSerialNumberString, TRUE);
- DLL_LOAD(hid.dll, HidP_GetCaps, TRUE);
- DLL_LOAD(hid.dll, HidD_SetNumInputBuffers, TRUE);
- DLL_LOAD(hid.dll, HidD_SetFeature, TRUE);
- DLL_LOAD(hid.dll, HidD_GetFeature, TRUE);
- DLL_LOAD(hid.dll, HidD_GetPhysicalDescriptor, TRUE);
- DLL_LOAD(hid.dll, HidD_GetInputReport, FALSE);
- DLL_LOAD(hid.dll, HidD_SetOutputReport, FALSE);
- DLL_LOAD(hid.dll, HidD_FlushQueue, TRUE);
- DLL_LOAD(hid.dll, HidP_GetValueCaps, TRUE);
-
- api_hid_available = true;
- return LIBUSB_SUCCESS;
-}
-
-static int hid_exit(void)
-{
- return LIBUSB_SUCCESS;
-}
-
-// 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(struct libusb_device_handle *dev_handle)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- struct windows_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];
- char* type[3] = {"input", "output", "feature"};
- int nb_ids[2]; // zero and nonzero report IDs
-
- 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=0; j<3; j++) {
- usbi_dbg("%d HID %s report value(s) found", size[j], type[j]);
- priv->hid->uses_report_ids[j] = false;
- if (size[j] > 0) {
- value_caps = malloc(size[j] * sizeof(HIDP_VALUE_CAPS));
- if ( (value_caps != NULL)
- && (HidP_GetValueCaps(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]);
- }
- safe_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;
-
- // 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(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- struct windows_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 ( (file_handle != 0) && (file_handle != INVALID_HANDLE_VALUE)) {
- CloseHandle(file_handle);
- }
- }
- }
-}
-
-static int hid_claim_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_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(struct libusb_device_handle *dev_handle, int iface)
-{
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_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(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(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(transfer->dev_handle);
- struct windows_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;
- struct winfd wfd;
- int current_interface, config;
- size_t size;
- int r = LIBUSB_ERROR_INVALID_PARAM;
-
- CHECK_HID_AVAILABLE;
-
- transfer_priv->pollable_fd = INVALID_WINFD;
- 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 defined(AUTO_CLAIM)
- if (auto_claim(transfer, &current_interface, USB_API_HID) != LIBUSB_SUCCESS) {
- return LIBUSB_ERROR_NOT_FOUND;
- }
-#else
- usbi_warn(ctx, "no interface available for control transfer");
- return LIBUSB_ERROR_NOT_FOUND;
-#endif
- }
-
- usbi_dbg("will use interface %d", current_interface);
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- // Always use the handle returned from usbi_create_fd (wfd.handle)
- wfd = usbi_create_fd(hid_handle, _O_RDONLY);
- if (wfd.fd < 0) {
- return LIBUSB_ERROR_NO_MEM;
- }
-
- switch(LIBUSB_REQ_TYPE(setup->request_type)) {
- case LIBUSB_REQUEST_TYPE_STANDARD:
- switch(setup->request) {
- case LIBUSB_REQUEST_GET_DESCRIPTOR:
- r = _hid_get_descriptor(priv->hid, wfd.handle, LIBUSB_REQ_RECIPIENT(setup->request_type),
- (setup->value >> 8) & 0xFF, setup->value & 0xFF, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, &size);
- break;
- case LIBUSB_REQUEST_GET_CONFIGURATION:
- r = windows_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_INVALID_PARAM;
- }
- 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(transfer->dev_handle, setup->index, setup->value);
- if (r == LIBUSB_SUCCESS) {
- r = LIBUSB_COMPLETED;
- }
- break;
- default:
- usbi_warn(ctx, "unsupported HID control request");
- r = LIBUSB_ERROR_INVALID_PARAM;
- break;
- }
- break;
- case LIBUSB_REQUEST_TYPE_CLASS:
- r =_hid_class_request(priv->hid, wfd.handle, setup->request_type, setup->request, setup->value,
- setup->index, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, transfer_priv,
- &size, wfd.overlapped);
- break;
- default:
- usbi_warn(ctx, "unsupported HID control request");
- r = LIBUSB_ERROR_INVALID_PARAM;
- break;
- }
-
- if (r == LIBUSB_COMPLETED) {
- // Force request to be completed synchronously. Transferred size has been set by previous call
- wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
- // http://msdn.microsoft.com/en-us/library/ms684342%28VS.85%29.aspx
- // set InternalHigh to the number of bytes transferred
- wfd.overlapped->InternalHigh = (DWORD)size;
- r = LIBUSB_SUCCESS;
- }
-
- if (r == LIBUSB_SUCCESS) {
- // Use priv_transfer to store data needed for async polling
- transfer_priv->pollable_fd = wfd;
- transfer_priv->interface_number = (uint8_t)current_interface;
- } else {
- usbi_free_fd(wfd.fd);
- }
-
- return r;
-}
-
-static int hid_submit_bulk_transfer(struct usbi_transfer *itransfer) {
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(transfer->dev_handle);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- struct winfd wfd;
- HANDLE hid_handle;
- bool direction_in, ret;
- int current_interface, length;
- DWORD size;
- int r = LIBUSB_SUCCESS;
-
- CHECK_HID_AVAILABLE;
-
- transfer_priv->pollable_fd = INVALID_WINFD;
- 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);
-
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- direction_in = transfer->endpoint & LIBUSB_ENDPOINT_IN;
-
- wfd = usbi_create_fd(hid_handle, direction_in?_O_RDONLY:_O_WRONLY);
- // Always use the handle returned from usbi_create_fd (wfd.handle)
- if (wfd.fd < 0) {
- return LIBUSB_ERROR_NO_MEM;
- }
-
- // 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 = (uint8_t*)calloc(length+1, 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: 0x%02X)", length, transfer_priv->hid_buffer[0]);
- ret = ReadFile(wfd.handle, transfer_priv->hid_buffer, length+1, &size, wfd.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(wfd.handle, transfer_priv->hid_buffer, length, &size, wfd.overlapped);
- }
- if (!ret) {
- if (GetLastError() != ERROR_IO_PENDING) {
- usbi_err(ctx, "HID transfer failed: %s", windows_error_str(0));
- usbi_free_fd(wfd.fd);
- 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;
- }
- wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
- wfd.overlapped->InternalHigh = size;
- }
-
- transfer_priv->pollable_fd = wfd;
- transfer_priv->interface_number = (uint8_t)current_interface;
-
- return r;
-}
-
-static int hid_abort_transfers(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_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;
- hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- CancelIo(hid_handle);
-
- return LIBUSB_SUCCESS;
-}
-
-static int hid_reset_device(struct libusb_device_handle *dev_handle)
-{
- struct windows_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 ((hid_handle != 0) && (hid_handle != INVALID_HANDLE_VALUE)) {
- HidD_FlushQueue(hid_handle);
- }
- }
- return LIBUSB_SUCCESS;
-}
-
-static int hid_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_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(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 windows_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
- // 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_init(struct libusb_context *ctx)
-{
- return LIBUSB_SUCCESS;
-}
-
-static int composite_exit(void)
-{
- return LIBUSB_SUCCESS;
-}
-
-static int composite_open(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- unsigned api;
- int r;
- uint8_t flag = 1<<USB_API_WINUSB;
-
- for (api=USB_API_WINUSB; api<USB_API_MAX; api++) {
- if (priv->composite_api_flags & flag) {
- r = usb_api_backend[api].open(dev_handle);
- if (r != LIBUSB_SUCCESS) {
- return r;
- }
- }
- flag <<= 1;
- }
- return LIBUSB_SUCCESS;
-}
-
-static void composite_close(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- unsigned api;
- uint8_t flag = 1<<USB_API_WINUSB;
-
- for (api=USB_API_WINUSB; api<USB_API_MAX; api++) {
- if (priv->composite_api_flags & flag) {
- usb_api_backend[api].close(dev_handle);
- }
- flag <<= 1;
- }
-}
-
-static int composite_claim_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- return priv->usb_interface[iface].apib->claim_interface(dev_handle, iface);
-}
-
-static int composite_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- return priv->usb_interface[iface].apib->set_interface_altsetting(dev_handle, iface, altsetting);
-}
-
-static int composite_release_interface(struct libusb_device_handle *dev_handle, int iface)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- return priv->usb_interface[iface].apib->release_interface(dev_handle, iface);
-}
-
-static int composite_submit_control_transfer(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 windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
- int i, pass;
-
- // Interface shouldn't matter for control, but it does in practice, with Windows'
- // restrictions with regards to accessing HID keyboards and mice. Try a 2 pass approach
- for (pass = 0; pass < 2; pass++) {
- for (i=0; i<USB_MAXINTERFACES; i++) {
- if (priv->usb_interface[i].path != NULL) {
- if ((pass == 0) && (priv->usb_interface[i].restricted_functionality)) {
- usbi_dbg("trying to skip restricted interface #%d (HID keyboard or mouse?)", i);
- continue;
- }
- usbi_dbg("using interface %d", i);
- return priv->usb_interface[i].apib->submit_control_transfer(itransfer);
- }
- }
- }
-
- usbi_err(ctx, "no libusb supported interfaces to complete request");
- return LIBUSB_ERROR_NOT_FOUND;
-}
-
-static int composite_submit_bulk_transfer(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 windows_device_handle_priv *handle_priv = __device_handle_priv(transfer->dev_handle);
- struct windows_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;
- }
-
- return priv->usb_interface[current_interface].apib->submit_bulk_transfer(itransfer);
-}
-
-static int composite_submit_iso_transfer(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 windows_device_handle_priv *handle_priv = __device_handle_priv(transfer->dev_handle);
- struct windows_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;
- }
-
- return priv->usb_interface[current_interface].apib->submit_iso_transfer(itransfer);
-}
-
-static int composite_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
-{
- struct libusb_context *ctx = DEVICE_CTX(dev_handle->dev);
- struct windows_device_handle_priv *handle_priv = __device_handle_priv(dev_handle);
- struct windows_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;
- }
-
- return priv->usb_interface[current_interface].apib->clear_halt(dev_handle, endpoint);
-}
-
-static int composite_abort_control(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
-
- return priv->usb_interface[transfer_priv->interface_number].apib->abort_control(itransfer);
-}
-
-static int composite_abort_transfers(struct usbi_transfer *itransfer)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
-
- return priv->usb_interface[transfer_priv->interface_number].apib->abort_transfers(itransfer);
-}
-
-static int composite_reset_device(struct libusb_device_handle *dev_handle)
-{
- struct windows_device_priv *priv = __device_priv(dev_handle->dev);
- unsigned api;
- int r;
- uint8_t flag = 1<<USB_API_WINUSB;
-
- for (api=USB_API_WINUSB; api<USB_API_MAX; api++) {
- if (priv->composite_api_flags & flag) {
- r = usb_api_backend[api].reset_device(dev_handle);
- if (r != LIBUSB_SUCCESS) {
- return r;
- }
- }
- flag <<= 1;
- }
- return LIBUSB_SUCCESS;
-}
-
-static int composite_copy_transfer_data(struct usbi_transfer *itransfer, uint32_t io_size)
-{
- struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
- struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
- struct windows_device_priv *priv = __device_priv(transfer->dev_handle->dev);
-
- return priv->usb_interface[transfer_priv->interface_number].apib->copy_transfer_data(itransfer, io_size);
-}