| /******************************************************* |
| HIDAPI - Multi-Platform library for |
| communication with HID devices. |
| |
| Alan Ott |
| Signal 11 Software |
| |
| 8/22/2009 |
| Linux Version - 6/2/2010 |
| Libusb Version - 8/13/2010 |
| FreeBSD Version - 11/1/2011 |
| |
| Copyright 2009, All Rights Reserved. |
| |
| At the discretion of the user of this library, |
| this software may be licensed under the terms of the |
| GNU General Public License v3, a BSD-Style license, or the |
| original HIDAPI license as outlined in the LICENSE.txt, |
| LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt |
| files located at the root of the source distribution. |
| These files may also be found in the public source |
| code repository located at: |
| https://github.com/libusb/hidapi . |
| ********************************************************/ |
| |
| /* This file is heavily modified from the original libusb.c, for portability. |
| * Last upstream update was from July 25, 2019, Git commit 93dca807. |
| */ |
| |
| #include "../../SDL_internal.h" |
| #include "SDL_thread.h" |
| #include "SDL_mutex.h" |
| |
| #ifdef SDL_JOYSTICK_HIDAPI |
| |
| #include <libusb.h> |
| #include <locale.h> /* setlocale */ |
| |
| #include "hidapi.h" |
| |
| #ifdef NAMESPACE |
| namespace NAMESPACE |
| { |
| #endif |
| |
| /* Barrier implementation because Android/Bionic don't have pthread_barrier. |
| This implementation came from Brent Priddy and was posted on |
| StackOverflow. It is used with his permission. */ |
| |
| typedef struct _SDL_ThreadBarrier |
| { |
| SDL_mutex *mutex; |
| SDL_cond *cond; |
| Uint32 count; |
| Uint32 trip_count; |
| } SDL_ThreadBarrier; |
| |
| static int SDL_CreateThreadBarrier(SDL_ThreadBarrier *barrier, Uint32 count) |
| { |
| if (barrier == NULL) { |
| return SDL_SetError("barrier must be non-NULL"); |
| } |
| if (count == 0) { |
| return SDL_SetError("count must be > 0"); |
| } |
| |
| barrier->mutex = SDL_CreateMutex(); |
| if (barrier->mutex == NULL) { |
| return -1; /* Error set by CreateMutex */ |
| } |
| barrier->cond = SDL_CreateCond(); |
| if (barrier->cond == NULL) { |
| return -1; /* Error set by CreateCond */ |
| } |
| |
| barrier->trip_count = count; |
| barrier->count = 0; |
| |
| return 0; |
| } |
| |
| static void SDL_DestroyThreadBarrier(SDL_ThreadBarrier *barrier) |
| { |
| SDL_DestroyCond(barrier->cond); |
| SDL_DestroyMutex(barrier->mutex); |
| } |
| |
| static int SDL_WaitThreadBarrier(SDL_ThreadBarrier *barrier) |
| { |
| SDL_LockMutex(barrier->mutex); |
| barrier->count += 1; |
| if (barrier->count >= barrier->trip_count) { |
| barrier->count = 0; |
| SDL_CondBroadcast(barrier->cond); |
| SDL_UnlockMutex(barrier->mutex); |
| return 1; |
| } |
| SDL_CondWait(barrier->cond, barrier->mutex); |
| SDL_UnlockMutex(barrier->mutex); |
| return 0; |
| } |
| |
| #if defined(__cplusplus) && !defined(NAMESPACE) |
| extern "C" { |
| #endif |
| |
| #ifdef DEBUG_PRINTF |
| #define LOG(...) fprintf(stderr, __VA_ARGS__) |
| #else |
| #define LOG(...) do {} while (0) |
| #endif |
| |
| #ifndef __FreeBSD__ |
| #define DETACH_KERNEL_DRIVER |
| #endif |
| |
| /* Uncomment to enable the retrieval of Usage and Usage Page in |
| hid_enumerate(). Warning, on platforms different from FreeBSD |
| this is very invasive as it requires the detach |
| and re-attach of the kernel driver. See comments inside hid_enumerate(). |
| libusb HIDAPI programs are encouraged to use the interface number |
| instead to differentiate between interfaces on a composite HID device. */ |
| /*#define INVASIVE_GET_USAGE*/ |
| |
| /* Linked List of input reports received from the device. */ |
| struct input_report { |
| uint8_t *data; |
| size_t len; |
| struct input_report *next; |
| }; |
| |
| |
| struct hid_device_ { |
| /* Handle to the actual device. */ |
| libusb_device_handle *device_handle; |
| |
| /* Endpoint information */ |
| int input_endpoint; |
| int output_endpoint; |
| int input_ep_max_packet_size; |
| |
| /* The interface number of the HID */ |
| int interface; |
| int detached_driver; |
| |
| /* Indexes of Strings */ |
| int manufacturer_index; |
| int product_index; |
| int serial_index; |
| |
| /* Whether blocking reads are used */ |
| int blocking; /* boolean */ |
| |
| /* Read thread objects */ |
| SDL_Thread *thread; |
| SDL_mutex *mutex; /* Protects input_reports */ |
| SDL_cond *condition; |
| SDL_ThreadBarrier barrier; /* Ensures correct startup sequence */ |
| int shutdown_thread; |
| int transfer_loop_finished; |
| struct libusb_transfer *transfer; |
| |
| /* List of received input reports. */ |
| struct input_report *input_reports; |
| }; |
| |
| static libusb_context *usb_context = NULL; |
| |
| uint16_t get_usb_code_for_current_locale(void); |
| static int return_data(hid_device *dev, unsigned char *data, size_t length); |
| |
| static hid_device *new_hid_device(void) |
| { |
| hid_device *dev = (hid_device*) calloc(1, sizeof(hid_device)); |
| dev->blocking = 1; |
| |
| dev->mutex = SDL_CreateMutex(); |
| dev->condition = SDL_CreateCond(); |
| SDL_CreateThreadBarrier(&dev->barrier, 2); |
| |
| return dev; |
| } |
| |
| static void free_hid_device(hid_device *dev) |
| { |
| /* Clean up the thread objects */ |
| SDL_DestroyThreadBarrier(&dev->barrier); |
| SDL_DestroyCond(dev->condition); |
| SDL_DestroyMutex(dev->mutex); |
| |
| /* Free the device itself */ |
| free(dev); |
| } |
| |
| #if 0 |
| /*TODO: Implement this function on hidapi/libusb.. */ |
| static void register_error(hid_device *dev, const char *op) |
| { |
| } |
| #endif |
| |
| #ifdef INVASIVE_GET_USAGE |
| /* Get bytes from a HID Report Descriptor. |
| Only call with a num_bytes of 0, 1, 2, or 4. */ |
| static uint32_t get_bytes(uint8_t *rpt, size_t len, size_t num_bytes, size_t cur) |
| { |
| /* Return if there aren't enough bytes. */ |
| if (cur + num_bytes >= len) |
| return 0; |
| |
| if (num_bytes == 0) |
| return 0; |
| else if (num_bytes == 1) { |
| return rpt[cur+1]; |
| } |
| else if (num_bytes == 2) { |
| return (rpt[cur+2] * 256 + rpt[cur+1]); |
| } |
| else if (num_bytes == 4) { |
| return (rpt[cur+4] * 0x01000000 + |
| rpt[cur+3] * 0x00010000 + |
| rpt[cur+2] * 0x00000100 + |
| rpt[cur+1] * 0x00000001); |
| } |
| else |
| return 0; |
| } |
| |
| /* Retrieves the device's Usage Page and Usage from the report |
| descriptor. The algorithm is simple, as it just returns the first |
| Usage and Usage Page that it finds in the descriptor. |
| The return value is 0 on success and -1 on failure. */ |
| static int get_usage(uint8_t *report_descriptor, size_t size, |
| unsigned short *usage_page, unsigned short *usage) |
| { |
| unsigned int i = 0; |
| int size_code; |
| int data_len, key_size; |
| int usage_found = 0, usage_page_found = 0; |
| |
| while (i < size) { |
| int key = report_descriptor[i]; |
| int key_cmd = key & 0xfc; |
| |
| //printf("key: %02hhx\n", key); |
| |
| if ((key & 0xf0) == 0xf0) { |
| /* This is a Long Item. The next byte contains the |
| length of the data section (value) for this key. |
| See the HID specification, version 1.11, section |
| 6.2.2.3, titled "Long Items." */ |
| if (i+1 < size) |
| data_len = report_descriptor[i+1]; |
| else |
| data_len = 0; /* malformed report */ |
| key_size = 3; |
| } |
| else { |
| /* This is a Short Item. The bottom two bits of the |
| key contain the size code for the data section |
| (value) for this key. Refer to the HID |
| specification, version 1.11, section 6.2.2.2, |
| titled "Short Items." */ |
| size_code = key & 0x3; |
| switch (size_code) { |
| case 0: |
| case 1: |
| case 2: |
| data_len = size_code; |
| break; |
| case 3: |
| data_len = 4; |
| break; |
| default: |
| /* Can't ever happen since size_code is & 0x3 */ |
| data_len = 0; |
| break; |
| }; |
| key_size = 1; |
| } |
| |
| if (key_cmd == 0x4) { |
| *usage_page = get_bytes(report_descriptor, size, data_len, i); |
| usage_page_found = 1; |
| //printf("Usage Page: %x\n", (uint32_t)*usage_page); |
| } |
| if (key_cmd == 0x8) { |
| *usage = get_bytes(report_descriptor, size, data_len, i); |
| usage_found = 1; |
| //printf("Usage: %x\n", (uint32_t)*usage); |
| } |
| |
| if (usage_page_found && usage_found) |
| return 0; /* success */ |
| |
| /* Skip over this key and it's associated data */ |
| i += data_len + key_size; |
| } |
| |
| return -1; /* failure */ |
| } |
| #endif /* INVASIVE_GET_USAGE */ |
| |
| #if defined(__FreeBSD__) && __FreeBSD__ < 10 |
| /* The libusb version included in FreeBSD < 10 doesn't have this function. In |
| mainline libusb, it's inlined in libusb.h. This function will bear a striking |
| resemblance to that one, because there's about one way to code it. |
| |
| Note that the data parameter is Unicode in UTF-16LE encoding. |
| Return value is the number of bytes in data, or LIBUSB_ERROR_*. |
| */ |
| static inline int libusb_get_string_descriptor(libusb_device_handle *dev, |
| uint8_t descriptor_index, uint16_t lang_id, |
| unsigned char *data, int length) |
| { |
| return libusb_control_transfer(dev, |
| LIBUSB_ENDPOINT_IN | 0x0, /* Endpoint 0 IN */ |
| LIBUSB_REQUEST_GET_DESCRIPTOR, |
| (LIBUSB_DT_STRING << 8) | descriptor_index, |
| lang_id, data, (uint16_t) length, 1000); |
| } |
| #endif |
| |
| |
| /* Get the first language the device says it reports. This comes from |
| USB string #0. */ |
| static uint16_t get_first_language(libusb_device_handle *dev) |
| { |
| uint16_t buf[32]; |
| int len; |
| |
| /* Get the string from libusb. */ |
| len = libusb_get_string_descriptor(dev, |
| 0x0, /* String ID */ |
| 0x0, /* Language */ |
| (unsigned char*)buf, |
| sizeof(buf)); |
| if (len < 4) |
| return 0x0; |
| |
| return buf[1]; /* First two bytes are len and descriptor type. */ |
| } |
| |
| static int is_language_supported(libusb_device_handle *dev, uint16_t lang) |
| { |
| uint16_t buf[32]; |
| int len; |
| int i; |
| |
| /* Get the string from libusb. */ |
| len = libusb_get_string_descriptor(dev, |
| 0x0, /* String ID */ |
| 0x0, /* Language */ |
| (unsigned char*)buf, |
| sizeof(buf)); |
| if (len < 4) |
| return 0x0; |
| |
| |
| len /= 2; /* language IDs are two-bytes each. */ |
| /* Start at index 1 because there are two bytes of protocol data. */ |
| for (i = 1; i < len; i++) { |
| if (buf[i] == lang) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| /* This function returns a newly allocated wide string containing the USB |
| device string numbered by the index. The returned string must be freed |
| by using free(). */ |
| static wchar_t *get_usb_string(libusb_device_handle *dev, uint8_t idx) |
| { |
| char buf[512]; |
| int len; |
| wchar_t *str = NULL; |
| |
| wchar_t wbuf[256]; |
| SDL_iconv_t ic; |
| size_t inbytes; |
| size_t outbytes; |
| size_t res; |
| const char *inptr; |
| char *outptr; |
| |
| /* Determine which language to use. */ |
| uint16_t lang; |
| lang = get_usb_code_for_current_locale(); |
| if (!is_language_supported(dev, lang)) |
| lang = get_first_language(dev); |
| |
| /* Get the string from libusb. */ |
| len = libusb_get_string_descriptor(dev, |
| idx, |
| lang, |
| (unsigned char*)buf, |
| sizeof(buf)); |
| if (len < 0) |
| return NULL; |
| |
| /* buf does not need to be explicitly NULL-terminated because |
| it is only passed into iconv() which does not need it. */ |
| |
| /* Initialize iconv. */ |
| ic = SDL_iconv_open("WCHAR_T", "UTF-16LE"); |
| if (ic == (SDL_iconv_t)-1) { |
| LOG("SDL_iconv_open() failed\n"); |
| return NULL; |
| } |
| |
| /* Convert to native wchar_t (UTF-32 on glibc/BSD systems). |
| Skip the first character (2-bytes). */ |
| inptr = buf+2; |
| inbytes = len-2; |
| outptr = (char*) wbuf; |
| outbytes = sizeof(wbuf); |
| res = SDL_iconv(ic, &inptr, &inbytes, &outptr, &outbytes); |
| if (res == (size_t)-1) { |
| LOG("SDL_iconv() failed\n"); |
| goto err; |
| } |
| |
| /* Write the terminating NULL. */ |
| wbuf[sizeof(wbuf)/sizeof(wbuf[0])-1] = 0x00000000; |
| if (outbytes >= sizeof(wbuf[0])) |
| *((wchar_t*)outptr) = 0x00000000; |
| |
| /* Allocate and copy the string. */ |
| str = wcsdup(wbuf); |
| |
| err: |
| SDL_iconv_close(ic); |
| |
| return str; |
| } |
| |
| static char *make_path(libusb_device *dev, int interface_number) |
| { |
| char str[64]; |
| snprintf(str, sizeof(str), "%04x:%04x:%02x", |
| libusb_get_bus_number(dev), |
| libusb_get_device_address(dev), |
| interface_number); |
| str[sizeof(str)-1] = '\0'; |
| |
| return strdup(str); |
| } |
| |
| |
| int HID_API_EXPORT hid_init(void) |
| { |
| if (!usb_context) { |
| const char *locale; |
| |
| /* Init Libusb */ |
| if (libusb_init(&usb_context)) |
| return -1; |
| |
| /* Set the locale if it's not set. */ |
| locale = setlocale(LC_CTYPE, NULL); |
| if (!locale) |
| setlocale(LC_CTYPE, ""); |
| } |
| |
| return 0; |
| } |
| |
| int HID_API_EXPORT hid_exit(void) |
| { |
| if (usb_context) { |
| libusb_exit(usb_context); |
| usb_context = NULL; |
| } |
| |
| return 0; |
| } |
| |
| static int is_xbox360(unsigned short vendor_id, const struct libusb_interface_descriptor *intf_desc) |
| { |
| static const int XB360_IFACE_SUBCLASS = 93; |
| static const int XB360_IFACE_PROTOCOL = 1; /* Wired */ |
| static const int XB360W_IFACE_PROTOCOL = 129; /* Wireless */ |
| static const int SUPPORTED_VENDORS[] = { |
| 0x0079, /* GPD Win 2 */ |
| 0x044f, /* Thrustmaster */ |
| 0x045e, /* Microsoft */ |
| 0x046d, /* Logitech */ |
| 0x056e, /* Elecom */ |
| 0x06a3, /* Saitek */ |
| 0x0738, /* Mad Catz */ |
| 0x07ff, /* Mad Catz */ |
| 0x0e6f, /* PDP */ |
| 0x0f0d, /* Hori */ |
| 0x1038, /* SteelSeries */ |
| 0x11c9, /* Nacon */ |
| 0x12ab, /* Unknown */ |
| 0x1430, /* RedOctane */ |
| 0x146b, /* BigBen */ |
| 0x1532, /* Razer Sabertooth */ |
| 0x15e4, /* Numark */ |
| 0x162e, /* Joytech */ |
| 0x1689, /* Razer Onza */ |
| 0x1bad, /* Harmonix */ |
| 0x24c6, /* PowerA */ |
| }; |
| |
| if (intf_desc->bInterfaceClass == LIBUSB_CLASS_VENDOR_SPEC && |
| intf_desc->bInterfaceSubClass == XB360_IFACE_SUBCLASS && |
| (intf_desc->bInterfaceProtocol == XB360_IFACE_PROTOCOL || |
| intf_desc->bInterfaceProtocol == XB360W_IFACE_PROTOCOL)) { |
| int i; |
| for (i = 0; i < sizeof(SUPPORTED_VENDORS)/sizeof(SUPPORTED_VENDORS[0]); ++i) { |
| if (vendor_id == SUPPORTED_VENDORS[i]) { |
| return 1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int is_xboxone(unsigned short vendor_id, const struct libusb_interface_descriptor *intf_desc) |
| { |
| static const int XB1_IFACE_SUBCLASS = 71; |
| static const int XB1_IFACE_PROTOCOL = 208; |
| static const int SUPPORTED_VENDORS[] = { |
| 0x045e, /* Microsoft */ |
| 0x0738, /* Mad Catz */ |
| 0x0e6f, /* PDP */ |
| 0x0f0d, /* Hori */ |
| 0x1532, /* Razer Wildcat */ |
| 0x24c6, /* PowerA */ |
| 0x2e24, /* Hyperkin */ |
| }; |
| |
| if (intf_desc->bInterfaceNumber == 0 && |
| intf_desc->bInterfaceClass == LIBUSB_CLASS_VENDOR_SPEC && |
| intf_desc->bInterfaceSubClass == XB1_IFACE_SUBCLASS && |
| intf_desc->bInterfaceProtocol == XB1_IFACE_PROTOCOL) { |
| int i; |
| for (i = 0; i < sizeof(SUPPORTED_VENDORS)/sizeof(SUPPORTED_VENDORS[0]); ++i) { |
| if (vendor_id == SUPPORTED_VENDORS[i]) { |
| return 1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int should_enumerate_interface(unsigned short vendor_id, const struct libusb_interface_descriptor *intf_desc) |
| { |
| if (intf_desc->bInterfaceClass == LIBUSB_CLASS_HID) |
| return 1; |
| |
| /* Also enumerate Xbox 360 controllers */ |
| if (is_xbox360(vendor_id, intf_desc)) |
| return 1; |
| |
| /* Also enumerate Xbox One controllers */ |
| if (is_xboxone(vendor_id, intf_desc)) |
| return 1; |
| |
| return 0; |
| } |
| |
| struct hid_device_info HID_API_EXPORT *hid_enumerate(unsigned short vendor_id, unsigned short product_id) |
| { |
| libusb_device **devs; |
| libusb_device *dev; |
| libusb_device_handle *handle; |
| ssize_t num_devs; |
| int i = 0; |
| |
| struct hid_device_info *root = NULL; /* return object */ |
| struct hid_device_info *cur_dev = NULL; |
| |
| if(hid_init() < 0) |
| return NULL; |
| |
| num_devs = libusb_get_device_list(usb_context, &devs); |
| if (num_devs < 0) |
| return NULL; |
| while ((dev = devs[i++]) != NULL) { |
| struct libusb_device_descriptor desc; |
| struct libusb_config_descriptor *conf_desc = NULL; |
| int j, k; |
| int interface_num = 0; |
| |
| int res = libusb_get_device_descriptor(dev, &desc); |
| unsigned short dev_vid = desc.idVendor; |
| unsigned short dev_pid = desc.idProduct; |
| |
| res = libusb_get_active_config_descriptor(dev, &conf_desc); |
| if (res < 0) |
| libusb_get_config_descriptor(dev, 0, &conf_desc); |
| if (conf_desc) { |
| for (j = 0; j < conf_desc->bNumInterfaces; j++) { |
| const struct libusb_interface *intf = &conf_desc->interface[j]; |
| for (k = 0; k < intf->num_altsetting; k++) { |
| const struct libusb_interface_descriptor *intf_desc; |
| intf_desc = &intf->altsetting[k]; |
| if (should_enumerate_interface(dev_vid, intf_desc)) { |
| interface_num = intf_desc->bInterfaceNumber; |
| |
| /* Check the VID/PID against the arguments */ |
| if ((vendor_id == 0x0 || vendor_id == dev_vid) && |
| (product_id == 0x0 || product_id == dev_pid)) { |
| res = libusb_open(dev, &handle); |
| |
| if (res >= 0) { |
| struct hid_device_info *tmp; |
| |
| /* VID/PID match. Create the record. */ |
| tmp = (struct hid_device_info*) calloc(1, sizeof(struct hid_device_info)); |
| if (cur_dev) { |
| cur_dev->next = tmp; |
| } |
| else { |
| root = tmp; |
| } |
| cur_dev = tmp; |
| |
| /* Fill out the record */ |
| cur_dev->next = NULL; |
| cur_dev->path = make_path(dev, interface_num); |
| |
| /* Serial Number */ |
| if (desc.iSerialNumber > 0) |
| cur_dev->serial_number = |
| get_usb_string(handle, desc.iSerialNumber); |
| |
| /* Manufacturer and Product strings */ |
| if (desc.iManufacturer > 0) |
| cur_dev->manufacturer_string = |
| get_usb_string(handle, desc.iManufacturer); |
| if (desc.iProduct > 0) |
| cur_dev->product_string = |
| get_usb_string(handle, desc.iProduct); |
| |
| #ifdef INVASIVE_GET_USAGE |
| { |
| /* |
| This section is removed because it is too |
| invasive on the system. Getting a Usage Page |
| and Usage requires parsing the HID Report |
| descriptor. Getting a HID Report descriptor |
| involves claiming the interface. Claiming the |
| interface involves detaching the kernel driver. |
| Detaching the kernel driver is hard on the system |
| because it will unclaim interfaces (if another |
| app has them claimed) and the re-attachment of |
| the driver will sometimes change /dev entry names. |
| It is for these reasons that this section is |
| #if 0. For composite devices, use the interface |
| field in the hid_device_info struct to distinguish |
| between interfaces. */ |
| unsigned char data[256]; |
| #ifdef DETACH_KERNEL_DRIVER |
| int detached = 0; |
| /* Usage Page and Usage */ |
| res = libusb_kernel_driver_active(handle, interface_num); |
| if (res == 1) { |
| res = libusb_detach_kernel_driver(handle, interface_num); |
| if (res < 0) |
| LOG("Couldn't detach kernel driver, even though a kernel driver was attached."); |
| else |
| detached = 1; |
| } |
| #endif |
| res = libusb_claim_interface(handle, interface_num); |
| if (res >= 0) { |
| /* Get the HID Report Descriptor. */ |
| res = libusb_control_transfer(handle, LIBUSB_ENDPOINT_IN|LIBUSB_RECIPIENT_INTERFACE, LIBUSB_REQUEST_GET_DESCRIPTOR, (LIBUSB_DT_REPORT << 8)|interface_num, 0, data, sizeof(data), 5000); |
| if (res >= 0) { |
| unsigned short page=0, usage=0; |
| /* Parse the usage and usage page |
| out of the report descriptor. */ |
| get_usage(data, res, &page, &usage); |
| cur_dev->usage_page = page; |
| cur_dev->usage = usage; |
| } |
| else |
| LOG("libusb_control_transfer() for getting the HID report failed with %d\n", res); |
| |
| /* Release the interface */ |
| res = libusb_release_interface(handle, interface_num); |
| if (res < 0) |
| LOG("Can't release the interface.\n"); |
| } |
| else |
| LOG("Can't claim interface %d\n", res); |
| #ifdef DETACH_KERNEL_DRIVER |
| /* Re-attach kernel driver if necessary. */ |
| if (detached) { |
| res = libusb_attach_kernel_driver(handle, interface_num); |
| if (res < 0) |
| LOG("Couldn't re-attach kernel driver.\n"); |
| } |
| #endif |
| } |
| #endif /* INVASIVE_GET_USAGE */ |
| |
| libusb_close(handle); |
| |
| /* VID/PID */ |
| cur_dev->vendor_id = dev_vid; |
| cur_dev->product_id = dev_pid; |
| |
| /* Release Number */ |
| cur_dev->release_number = desc.bcdDevice; |
| |
| /* Interface Number */ |
| cur_dev->interface_number = interface_num; |
| cur_dev->interface_class = intf_desc->bInterfaceClass; |
| cur_dev->interface_subclass = intf_desc->bInterfaceSubClass; |
| cur_dev->interface_protocol = intf_desc->bInterfaceProtocol; |
| |
| } else |
| LOG("Can't open device 0x%.4x/0x%.4x during enumeration: %d\n", dev_vid, dev_pid, res); |
| } |
| } |
| } /* altsettings */ |
| } /* interfaces */ |
| libusb_free_config_descriptor(conf_desc); |
| } |
| } |
| |
| libusb_free_device_list(devs, 1); |
| |
| return root; |
| } |
| |
| void HID_API_EXPORT hid_free_enumeration(struct hid_device_info *devs) |
| { |
| struct hid_device_info *d = devs; |
| while (d) { |
| struct hid_device_info *next = d->next; |
| free(d->path); |
| free(d->serial_number); |
| free(d->manufacturer_string); |
| free(d->product_string); |
| free(d); |
| d = next; |
| } |
| } |
| |
| hid_device * hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number) |
| { |
| struct hid_device_info *devs, *cur_dev; |
| const char *path_to_open = NULL; |
| hid_device *handle = NULL; |
| |
| devs = hid_enumerate(vendor_id, product_id); |
| cur_dev = devs; |
| while (cur_dev) { |
| if (cur_dev->vendor_id == vendor_id && |
| cur_dev->product_id == product_id) { |
| if (serial_number) { |
| if (cur_dev->serial_number && |
| wcscmp(serial_number, cur_dev->serial_number) == 0) { |
| path_to_open = cur_dev->path; |
| break; |
| } |
| } |
| else { |
| path_to_open = cur_dev->path; |
| break; |
| } |
| } |
| cur_dev = cur_dev->next; |
| } |
| |
| if (path_to_open) { |
| /* Open the device */ |
| handle = hid_open_path(path_to_open, 0); |
| } |
| |
| hid_free_enumeration(devs); |
| |
| return handle; |
| } |
| |
| static void LIBUSB_CALL read_callback(struct libusb_transfer *transfer) |
| { |
| hid_device *dev = (hid_device *)transfer->user_data; |
| int res; |
| |
| if (transfer->status == LIBUSB_TRANSFER_COMPLETED) { |
| |
| struct input_report *rpt = (struct input_report*) malloc(sizeof(*rpt)); |
| rpt->data = (uint8_t*) malloc(transfer->actual_length); |
| memcpy(rpt->data, transfer->buffer, transfer->actual_length); |
| rpt->len = transfer->actual_length; |
| rpt->next = NULL; |
| |
| SDL_LockMutex(dev->mutex); |
| |
| /* Attach the new report object to the end of the list. */ |
| if (dev->input_reports == NULL) { |
| /* The list is empty. Put it at the root. */ |
| dev->input_reports = rpt; |
| SDL_CondSignal(dev->condition); |
| } |
| else { |
| /* Find the end of the list and attach. */ |
| struct input_report *cur = dev->input_reports; |
| int num_queued = 0; |
| while (cur->next != NULL) { |
| cur = cur->next; |
| num_queued++; |
| } |
| cur->next = rpt; |
| |
| /* Pop one off if we've reached 30 in the queue. This |
| way we don't grow forever if the user never reads |
| anything from the device. */ |
| if (num_queued > 30) { |
| return_data(dev, NULL, 0); |
| } |
| } |
| SDL_UnlockMutex(dev->mutex); |
| } |
| else if (transfer->status == LIBUSB_TRANSFER_CANCELLED) { |
| dev->shutdown_thread = 1; |
| } |
| else if (transfer->status == LIBUSB_TRANSFER_NO_DEVICE) { |
| dev->shutdown_thread = 1; |
| } |
| else if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT) { |
| //LOG("Timeout (normal)\n"); |
| } |
| else { |
| LOG("Unknown transfer code: %d\n", transfer->status); |
| } |
| |
| if (dev->shutdown_thread) { |
| dev->transfer_loop_finished = 1; |
| return; |
| } |
| |
| /* Re-submit the transfer object. */ |
| res = libusb_submit_transfer(transfer); |
| if (res != 0) { |
| LOG("Unable to submit URB. libusb error code: %d\n", res); |
| dev->shutdown_thread = 1; |
| dev->transfer_loop_finished = 1; |
| } |
| } |
| |
| |
| static int read_thread(void *param) |
| { |
| hid_device *dev = (hid_device *)param; |
| uint8_t *buf; |
| const size_t length = dev->input_ep_max_packet_size; |
| |
| /* Set up the transfer object. */ |
| buf = (uint8_t*) malloc(length); |
| dev->transfer = libusb_alloc_transfer(0); |
| libusb_fill_interrupt_transfer(dev->transfer, |
| dev->device_handle, |
| dev->input_endpoint, |
| buf, |
| length, |
| read_callback, |
| dev, |
| 5000/*timeout*/); |
| |
| /* Make the first submission. Further submissions are made |
| from inside read_callback() */ |
| libusb_submit_transfer(dev->transfer); |
| |
| /* Notify the main thread that the read thread is up and running. */ |
| SDL_WaitThreadBarrier(&dev->barrier); |
| |
| /* Handle all the events. */ |
| while (!dev->shutdown_thread) { |
| int res; |
| res = libusb_handle_events(usb_context); |
| if (res < 0) { |
| /* There was an error. */ |
| LOG("read_thread(): libusb reports error # %d\n", res); |
| |
| /* Break out of this loop only on fatal error.*/ |
| if (res != LIBUSB_ERROR_BUSY && |
| res != LIBUSB_ERROR_TIMEOUT && |
| res != LIBUSB_ERROR_OVERFLOW && |
| res != LIBUSB_ERROR_INTERRUPTED) { |
| dev->shutdown_thread = 1; |
| break; |
| } |
| } |
| } |
| |
| /* Cancel any transfer that may be pending. This call will fail |
| if no transfers are pending, but that's OK. */ |
| libusb_cancel_transfer(dev->transfer); |
| |
| while (!dev->transfer_loop_finished) |
| libusb_handle_events_completed(usb_context, &dev->transfer_loop_finished); |
| |
| /* Now that the read thread is stopping, Wake any threads which are |
| waiting on data (in hid_read_timeout()). Do this under a mutex to |
| make sure that a thread which is about to go to sleep waiting on |
| the condition actually will go to sleep before the condition is |
| signaled. */ |
| SDL_LockMutex(dev->mutex); |
| SDL_CondBroadcast(dev->condition); |
| SDL_UnlockMutex(dev->mutex); |
| |
| /* The dev->transfer->buffer and dev->transfer objects are cleaned up |
| in hid_close(). They are not cleaned up here because this thread |
| could end either due to a disconnect or due to a user |
| call to hid_close(). In both cases the objects can be safely |
| cleaned up after the call to pthread_join() (in hid_close()), but |
| since hid_close() calls libusb_cancel_transfer(), on these objects, |
| they can not be cleaned up here. */ |
| |
| return 0; |
| } |
| |
| static void init_xboxone(libusb_device_handle *device_handle, struct libusb_config_descriptor *conf_desc) |
| { |
| static const int XB1_IFACE_SUBCLASS = 71; |
| static const int XB1_IFACE_PROTOCOL = 208; |
| int j, k, res; |
| |
| for (j = 0; j < conf_desc->bNumInterfaces; j++) { |
| const struct libusb_interface *intf = &conf_desc->interface[j]; |
| for (k = 0; k < intf->num_altsetting; k++) { |
| const struct libusb_interface_descriptor *intf_desc; |
| intf_desc = &intf->altsetting[k]; |
| |
| if (intf_desc->bInterfaceNumber != 0 && |
| intf_desc->bAlternateSetting == 0 && |
| intf_desc->bInterfaceClass == LIBUSB_CLASS_VENDOR_SPEC && |
| intf_desc->bInterfaceSubClass == XB1_IFACE_SUBCLASS && |
| intf_desc->bInterfaceProtocol == XB1_IFACE_PROTOCOL) { |
| res = libusb_claim_interface(device_handle, intf_desc->bInterfaceNumber); |
| if (res < 0) { |
| LOG("can't claim interface %d: %d\n", intf_desc->bInterfaceNumber, res); |
| continue; |
| } |
| |
| res = libusb_set_interface_alt_setting(device_handle, intf_desc->bInterfaceNumber, intf_desc->bAlternateSetting); |
| if (res < 0) { |
| LOG("xbox init: can't set alt setting %d: %d\n", intf_desc->bInterfaceNumber, res); |
| } |
| |
| libusb_release_interface(device_handle, intf_desc->bInterfaceNumber); |
| } |
| } |
| } |
| } |
| |
| hid_device * HID_API_EXPORT hid_open_path(const char *path, int bExclusive) |
| { |
| hid_device *dev = NULL; |
| |
| libusb_device **devs; |
| libusb_device *usb_dev; |
| int res; |
| int d = 0; |
| int good_open = 0; |
| |
| if(hid_init() < 0) |
| return NULL; |
| |
| dev = new_hid_device(); |
| |
| libusb_get_device_list(usb_context, &devs); |
| while ((usb_dev = devs[d++]) != NULL) { |
| struct libusb_device_descriptor desc; |
| struct libusb_config_descriptor *conf_desc = NULL; |
| int i,j,k; |
| |
| libusb_get_device_descriptor(usb_dev, &desc); |
| |
| res = libusb_get_active_config_descriptor(usb_dev, &conf_desc); |
| if (res < 0) |
| libusb_get_config_descriptor(usb_dev, 0, &conf_desc); |
| if (!conf_desc) |
| continue; |
| for (j = 0; j < conf_desc->bNumInterfaces && !good_open; j++) { |
| const struct libusb_interface *intf = &conf_desc->interface[j]; |
| for (k = 0; k < intf->num_altsetting && !good_open; k++) { |
| const struct libusb_interface_descriptor *intf_desc; |
| intf_desc = &intf->altsetting[k]; |
| if (should_enumerate_interface(desc.idVendor, intf_desc)) { |
| char *dev_path = make_path(usb_dev, intf_desc->bInterfaceNumber); |
| if (!strcmp(dev_path, path)) { |
| int detached_driver = 0; |
| |
| /* Matched Paths. Open this device */ |
| |
| /* OPEN HERE */ |
| res = libusb_open(usb_dev, &dev->device_handle); |
| if (res < 0) { |
| LOG("can't open device\n"); |
| free(dev_path); |
| break; |
| } |
| good_open = 1; |
| |
| #ifdef DETACH_KERNEL_DRIVER |
| /* Detach the kernel driver, but only if the |
| device is managed by the kernel */ |
| if (libusb_kernel_driver_active(dev->device_handle, intf_desc->bInterfaceNumber) == 1) { |
| res = libusb_detach_kernel_driver(dev->device_handle, intf_desc->bInterfaceNumber); |
| if (res < 0) { |
| libusb_close(dev->device_handle); |
| LOG("Unable to detach Kernel Driver\n"); |
| free(dev_path); |
| good_open = 0; |
| break; |
| } |
| detached_driver = 1; |
| } |
| #endif |
| |
| res = libusb_claim_interface(dev->device_handle, intf_desc->bInterfaceNumber); |
| if (res < 0) { |
| LOG("can't claim interface %d: %d\n", intf_desc->bInterfaceNumber, res); |
| free(dev_path); |
| libusb_close(dev->device_handle); |
| good_open = 0; |
| break; |
| } |
| |
| /* Initialize XBox One controllers */ |
| if (is_xboxone(desc.idVendor, intf_desc)) { |
| init_xboxone(dev->device_handle, conf_desc); |
| } |
| |
| /* Store off the string descriptor indexes */ |
| dev->manufacturer_index = desc.iManufacturer; |
| dev->product_index = desc.iProduct; |
| dev->serial_index = desc.iSerialNumber; |
| |
| /* Store off the interface number */ |
| dev->interface = intf_desc->bInterfaceNumber; |
| dev->detached_driver = detached_driver; |
| |
| /* Find the INPUT and OUTPUT endpoints. An |
| OUTPUT endpoint is not required. */ |
| for (i = 0; i < intf_desc->bNumEndpoints; i++) { |
| const struct libusb_endpoint_descriptor *ep |
| = &intf_desc->endpoint[i]; |
| |
| /* Determine the type and direction of this |
| endpoint. */ |
| int is_interrupt = |
| (ep->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK) |
| == LIBUSB_TRANSFER_TYPE_INTERRUPT; |
| int is_output = |
| (ep->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK) |
| == LIBUSB_ENDPOINT_OUT; |
| int is_input = |
| (ep->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK) |
| == LIBUSB_ENDPOINT_IN; |
| |
| /* Decide whether to use it for input or output. */ |
| if (dev->input_endpoint == 0 && |
| is_interrupt && is_input) { |
| /* Use this endpoint for INPUT */ |
| dev->input_endpoint = ep->bEndpointAddress; |
| dev->input_ep_max_packet_size = ep->wMaxPacketSize; |
| } |
| if (dev->output_endpoint == 0 && |
| is_interrupt && is_output) { |
| /* Use this endpoint for OUTPUT */ |
| dev->output_endpoint = ep->bEndpointAddress; |
| } |
| } |
| |
| dev->thread = SDL_CreateThread(read_thread, NULL, dev); |
| |
| /* Wait here for the read thread to be initialized. */ |
| SDL_WaitThreadBarrier(&dev->barrier); |
| |
| } |
| free(dev_path); |
| } |
| } |
| } |
| libusb_free_config_descriptor(conf_desc); |
| |
| } |
| |
| libusb_free_device_list(devs, 1); |
| |
| /* If we have a good handle, return it. */ |
| if (good_open) { |
| return dev; |
| } |
| else { |
| /* Unable to open any devices. */ |
| free_hid_device(dev); |
| return NULL; |
| } |
| } |
| |
| |
| int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t length) |
| { |
| int res; |
| |
| if (dev->output_endpoint <= 0) { |
| int report_number = data[0]; |
| int skipped_report_id = 0; |
| |
| if (report_number == 0x0) { |
| data++; |
| length--; |
| skipped_report_id = 1; |
| } |
| |
| /* No interrupt out endpoint. Use the Control Endpoint */ |
| res = libusb_control_transfer(dev->device_handle, |
| LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_OUT, |
| 0x09/*HID Set_Report*/, |
| (2/*HID output*/ << 8) | report_number, |
| dev->interface, |
| (unsigned char *)data, length, |
| 1000/*timeout millis*/); |
| |
| if (res < 0) |
| return -1; |
| |
| if (skipped_report_id) |
| length++; |
| |
| return length; |
| } |
| else { |
| /* Use the interrupt out endpoint */ |
| int actual_length; |
| res = libusb_interrupt_transfer(dev->device_handle, |
| dev->output_endpoint, |
| (unsigned char*)data, |
| length, |
| &actual_length, 1000); |
| |
| if (res < 0) |
| return -1; |
| |
| return actual_length; |
| } |
| } |
| |
| /* Helper function, to simplify hid_read(). |
| This should be called with dev->mutex locked. */ |
| static int return_data(hid_device *dev, unsigned char *data, size_t length) |
| { |
| /* Copy the data out of the linked list item (rpt) into the |
| return buffer (data), and delete the liked list item. */ |
| struct input_report *rpt = dev->input_reports; |
| size_t len = (length < rpt->len)? length: rpt->len; |
| if (data && len > 0) |
| memcpy(data, rpt->data, len); |
| dev->input_reports = rpt->next; |
| free(rpt->data); |
| free(rpt); |
| return len; |
| } |
| |
| #if 0 /* TODO: pthread_cleanup SDL? */ |
| static void cleanup_mutex(void *param) |
| { |
| hid_device *dev = (hid_device *)param; |
| SDL_UnlockMutex(dev->mutex); |
| } |
| #endif |
| |
| int HID_API_EXPORT hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds) |
| { |
| #if 0 |
| int transferred; |
| int res = libusb_interrupt_transfer(dev->device_handle, dev->input_endpoint, data, length, &transferred, 5000); |
| LOG("transferred: %d\n", transferred); |
| return transferred; |
| #endif |
| int bytes_read; |
| |
| SDL_LockMutex(dev->mutex); |
| /* TODO: pthread_cleanup SDL? */ |
| |
| bytes_read = -1; |
| |
| /* There's an input report queued up. Return it. */ |
| if (dev->input_reports) { |
| /* Return the first one */ |
| bytes_read = return_data(dev, data, length); |
| goto ret; |
| } |
| |
| if (dev->shutdown_thread) { |
| /* This means the device has been disconnected. |
| An error code of -1 should be returned. */ |
| bytes_read = -1; |
| goto ret; |
| } |
| |
| if (milliseconds == -1) { |
| /* Blocking */ |
| while (!dev->input_reports && !dev->shutdown_thread) { |
| SDL_CondWait(dev->condition, dev->mutex); |
| } |
| if (dev->input_reports) { |
| bytes_read = return_data(dev, data, length); |
| } |
| } |
| else if (milliseconds > 0) { |
| /* Non-blocking, but called with timeout. */ |
| int res; |
| |
| while (!dev->input_reports && !dev->shutdown_thread) { |
| res = SDL_CondWaitTimeout(dev->condition, dev->mutex, milliseconds); |
| if (res == 0) { |
| if (dev->input_reports) { |
| bytes_read = return_data(dev, data, length); |
| break; |
| } |
| |
| /* If we're here, there was a spurious wake up |
| or the read thread was shutdown. Run the |
| loop again (ie: don't break). */ |
| } |
| else if (res == SDL_MUTEX_TIMEDOUT) { |
| /* Timed out. */ |
| bytes_read = 0; |
| break; |
| } |
| else { |
| /* Error. */ |
| bytes_read = -1; |
| break; |
| } |
| } |
| } |
| else { |
| /* Purely non-blocking */ |
| bytes_read = 0; |
| } |
| |
| ret: |
| SDL_UnlockMutex(dev->mutex); |
| /* TODO: pthread_cleanup SDL? */ |
| |
| return bytes_read; |
| } |
| |
| int HID_API_EXPORT hid_read(hid_device *dev, unsigned char *data, size_t length) |
| { |
| return hid_read_timeout(dev, data, length, dev->blocking ? -1 : 0); |
| } |
| |
| int HID_API_EXPORT hid_set_nonblocking(hid_device *dev, int nonblock) |
| { |
| dev->blocking = !nonblock; |
| |
| return 0; |
| } |
| |
| |
| int HID_API_EXPORT hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length) |
| { |
| int res = -1; |
| int skipped_report_id = 0; |
| int report_number = data[0]; |
| |
| if (report_number == 0x0) { |
| data++; |
| length--; |
| skipped_report_id = 1; |
| } |
| |
| res = libusb_control_transfer(dev->device_handle, |
| LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_OUT, |
| 0x09/*HID set_report*/, |
| (3/*HID feature*/ << 8) | report_number, |
| dev->interface, |
| (unsigned char *)data, length, |
| 1000/*timeout millis*/); |
| |
| if (res < 0) |
| return -1; |
| |
| /* Account for the report ID */ |
| if (skipped_report_id) |
| length++; |
| |
| return length; |
| } |
| |
| int HID_API_EXPORT hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length) |
| { |
| int res = -1; |
| int skipped_report_id = 0; |
| int report_number = data[0]; |
| |
| if (report_number == 0x0) { |
| /* Offset the return buffer by 1, so that the report ID |
| will remain in byte 0. */ |
| data++; |
| length--; |
| skipped_report_id = 1; |
| } |
| res = libusb_control_transfer(dev->device_handle, |
| LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_IN, |
| 0x01/*HID get_report*/, |
| (3/*HID feature*/ << 8) | report_number, |
| dev->interface, |
| (unsigned char *)data, length, |
| 1000/*timeout millis*/); |
| |
| if (res < 0) |
| return -1; |
| |
| if (skipped_report_id) |
| res++; |
| |
| return res; |
| } |
| |
| |
| void HID_API_EXPORT hid_close(hid_device *dev) |
| { |
| int status; |
| |
| if (!dev) |
| return; |
| |
| /* Cause read_thread() to stop. */ |
| dev->shutdown_thread = 1; |
| libusb_cancel_transfer(dev->transfer); |
| |
| /* Wait for read_thread() to end. */ |
| SDL_WaitThread(dev->thread, &status); |
| |
| /* Clean up the Transfer objects allocated in read_thread(). */ |
| free(dev->transfer->buffer); |
| libusb_free_transfer(dev->transfer); |
| |
| /* release the interface */ |
| libusb_release_interface(dev->device_handle, dev->interface); |
| |
| #ifdef DETACH_KERNEL_DRIVER |
| /* Re-attach kernel driver if necessary. */ |
| if (dev->detached_driver) { |
| int res = libusb_attach_kernel_driver(dev->device_handle, dev->interface); |
| if (res < 0) |
| LOG("Couldn't re-attach kernel driver.\n"); |
| } |
| #endif |
| |
| /* Close the handle */ |
| libusb_close(dev->device_handle); |
| |
| /* Clear out the queue of received reports. */ |
| SDL_LockMutex(dev->mutex); |
| while (dev->input_reports) { |
| return_data(dev, NULL, 0); |
| } |
| SDL_UnlockMutex(dev->mutex); |
| |
| free_hid_device(dev); |
| } |
| |
| |
| int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen) |
| { |
| return hid_get_indexed_string(dev, dev->manufacturer_index, string, maxlen); |
| } |
| |
| int HID_API_EXPORT_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen) |
| { |
| return hid_get_indexed_string(dev, dev->product_index, string, maxlen); |
| } |
| |
| int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen) |
| { |
| return hid_get_indexed_string(dev, dev->serial_index, string, maxlen); |
| } |
| |
| int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen) |
| { |
| wchar_t *str; |
| |
| str = get_usb_string(dev->device_handle, string_index); |
| if (str) { |
| wcsncpy(string, str, maxlen); |
| string[maxlen-1] = L'\0'; |
| free(str); |
| return 0; |
| } |
| else |
| return -1; |
| } |
| |
| |
| HID_API_EXPORT const wchar_t * HID_API_CALL hid_error(hid_device *dev) |
| { |
| return NULL; |
| } |
| |
| |
| struct lang_map_entry { |
| const char *name; |
| const char *string_code; |
| uint16_t usb_code; |
| }; |
| |
| #define LANG(name,code,usb_code) { name, code, usb_code } |
| static struct lang_map_entry lang_map[] = { |
| LANG("Afrikaans", "af", 0x0436), |
| LANG("Albanian", "sq", 0x041C), |
| LANG("Arabic - United Arab Emirates", "ar_ae", 0x3801), |
| LANG("Arabic - Bahrain", "ar_bh", 0x3C01), |
| LANG("Arabic - Algeria", "ar_dz", 0x1401), |
| LANG("Arabic - Egypt", "ar_eg", 0x0C01), |
| LANG("Arabic - Iraq", "ar_iq", 0x0801), |
| LANG("Arabic - Jordan", "ar_jo", 0x2C01), |
| LANG("Arabic - Kuwait", "ar_kw", 0x3401), |
| LANG("Arabic - Lebanon", "ar_lb", 0x3001), |
| LANG("Arabic - Libya", "ar_ly", 0x1001), |
| LANG("Arabic - Morocco", "ar_ma", 0x1801), |
| LANG("Arabic - Oman", "ar_om", 0x2001), |
| LANG("Arabic - Qatar", "ar_qa", 0x4001), |
| LANG("Arabic - Saudi Arabia", "ar_sa", 0x0401), |
| LANG("Arabic - Syria", "ar_sy", 0x2801), |
| LANG("Arabic - Tunisia", "ar_tn", 0x1C01), |
| LANG("Arabic - Yemen", "ar_ye", 0x2401), |
| LANG("Armenian", "hy", 0x042B), |
| LANG("Azeri - Latin", "az_az", 0x042C), |
| LANG("Azeri - Cyrillic", "az_az", 0x082C), |
| LANG("Basque", "eu", 0x042D), |
| LANG("Belarusian", "be", 0x0423), |
| LANG("Bulgarian", "bg", 0x0402), |
| LANG("Catalan", "ca", 0x0403), |
| LANG("Chinese - China", "zh_cn", 0x0804), |
| LANG("Chinese - Hong Kong SAR", "zh_hk", 0x0C04), |
| LANG("Chinese - Macau SAR", "zh_mo", 0x1404), |
| LANG("Chinese - Singapore", "zh_sg", 0x1004), |
| LANG("Chinese - Taiwan", "zh_tw", 0x0404), |
| LANG("Croatian", "hr", 0x041A), |
| LANG("Czech", "cs", 0x0405), |
| LANG("Danish", "da", 0x0406), |
| LANG("Dutch - Netherlands", "nl_nl", 0x0413), |
| LANG("Dutch - Belgium", "nl_be", 0x0813), |
| LANG("English - Australia", "en_au", 0x0C09), |
| LANG("English - Belize", "en_bz", 0x2809), |
| LANG("English - Canada", "en_ca", 0x1009), |
| LANG("English - Caribbean", "en_cb", 0x2409), |
| LANG("English - Ireland", "en_ie", 0x1809), |
| LANG("English - Jamaica", "en_jm", 0x2009), |
| LANG("English - New Zealand", "en_nz", 0x1409), |
| LANG("English - Philippines", "en_ph", 0x3409), |
| LANG("English - Southern Africa", "en_za", 0x1C09), |
| LANG("English - Trinidad", "en_tt", 0x2C09), |
| LANG("English - Great Britain", "en_gb", 0x0809), |
| LANG("English - United States", "en_us", 0x0409), |
| LANG("Estonian", "et", 0x0425), |
| LANG("Farsi", "fa", 0x0429), |
| LANG("Finnish", "fi", 0x040B), |
| LANG("Faroese", "fo", 0x0438), |
| LANG("French - France", "fr_fr", 0x040C), |
| LANG("French - Belgium", "fr_be", 0x080C), |
| LANG("French - Canada", "fr_ca", 0x0C0C), |
| LANG("French - Luxembourg", "fr_lu", 0x140C), |
| LANG("French - Switzerland", "fr_ch", 0x100C), |
| LANG("Gaelic - Ireland", "gd_ie", 0x083C), |
| LANG("Gaelic - Scotland", "gd", 0x043C), |
| LANG("German - Germany", "de_de", 0x0407), |
| LANG("German - Austria", "de_at", 0x0C07), |
| LANG("German - Liechtenstein", "de_li", 0x1407), |
| LANG("German - Luxembourg", "de_lu", 0x1007), |
| LANG("German - Switzerland", "de_ch", 0x0807), |
| LANG("Greek", "el", 0x0408), |
| LANG("Hebrew", "he", 0x040D), |
| LANG("Hindi", "hi", 0x0439), |
| LANG("Hungarian", "hu", 0x040E), |
| LANG("Icelandic", "is", 0x040F), |
| LANG("Indonesian", "id", 0x0421), |
| LANG("Italian - Italy", "it_it", 0x0410), |
| LANG("Italian - Switzerland", "it_ch", 0x0810), |
| LANG("Japanese", "ja", 0x0411), |
| LANG("Korean", "ko", 0x0412), |
| LANG("Latvian", "lv", 0x0426), |
| LANG("Lithuanian", "lt", 0x0427), |
| LANG("F.Y.R.O. Macedonia", "mk", 0x042F), |
| LANG("Malay - Malaysia", "ms_my", 0x043E), |
| LANG("Malay ??? Brunei", "ms_bn", 0x083E), |
| LANG("Maltese", "mt", 0x043A), |
| LANG("Marathi", "mr", 0x044E), |
| LANG("Norwegian - Bokml", "no_no", 0x0414), |
| LANG("Norwegian - Nynorsk", "no_no", 0x0814), |
| LANG("Polish", "pl", 0x0415), |
| LANG("Portuguese - Portugal", "pt_pt", 0x0816), |
| LANG("Portuguese - Brazil", "pt_br", 0x0416), |
| LANG("Raeto-Romance", "rm", 0x0417), |
| LANG("Romanian - Romania", "ro", 0x0418), |
| LANG("Romanian - Republic of Moldova", "ro_mo", 0x0818), |
| LANG("Russian", "ru", 0x0419), |
| LANG("Russian - Republic of Moldova", "ru_mo", 0x0819), |
| LANG("Sanskrit", "sa", 0x044F), |
| LANG("Serbian - Cyrillic", "sr_sp", 0x0C1A), |
| LANG("Serbian - Latin", "sr_sp", 0x081A), |
| LANG("Setsuana", "tn", 0x0432), |
| LANG("Slovenian", "sl", 0x0424), |
| LANG("Slovak", "sk", 0x041B), |
| LANG("Sorbian", "sb", 0x042E), |
| LANG("Spanish - Spain (Traditional)", "es_es", 0x040A), |
| LANG("Spanish - Argentina", "es_ar", 0x2C0A), |
| LANG("Spanish - Bolivia", "es_bo", 0x400A), |
| LANG("Spanish - Chile", "es_cl", 0x340A), |
| LANG("Spanish - Colombia", "es_co", 0x240A), |
| LANG("Spanish - Costa Rica", "es_cr", 0x140A), |
| LANG("Spanish - Dominican Republic", "es_do", 0x1C0A), |
| LANG("Spanish - Ecuador", "es_ec", 0x300A), |
| LANG("Spanish - Guatemala", "es_gt", 0x100A), |
| LANG("Spanish - Honduras", "es_hn", 0x480A), |
| LANG("Spanish - Mexico", "es_mx", 0x080A), |
| LANG("Spanish - Nicaragua", "es_ni", 0x4C0A), |
| LANG("Spanish - Panama", "es_pa", 0x180A), |
| LANG("Spanish - Peru", "es_pe", 0x280A), |
| LANG("Spanish - Puerto Rico", "es_pr", 0x500A), |
| LANG("Spanish - Paraguay", "es_py", 0x3C0A), |
| LANG("Spanish - El Salvador", "es_sv", 0x440A), |
| LANG("Spanish - Uruguay", "es_uy", 0x380A), |
| LANG("Spanish - Venezuela", "es_ve", 0x200A), |
| LANG("Southern Sotho", "st", 0x0430), |
| LANG("Swahili", "sw", 0x0441), |
| LANG("Swedish - Sweden", "sv_se", 0x041D), |
| LANG("Swedish - Finland", "sv_fi", 0x081D), |
| LANG("Tamil", "ta", 0x0449), |
| LANG("Tatar", "tt", 0X0444), |
| LANG("Thai", "th", 0x041E), |
| LANG("Turkish", "tr", 0x041F), |
| LANG("Tsonga", "ts", 0x0431), |
| LANG("Ukrainian", "uk", 0x0422), |
| LANG("Urdu", "ur", 0x0420), |
| LANG("Uzbek - Cyrillic", "uz_uz", 0x0843), |
| LANG("Uzbek ??? Latin", "uz_uz", 0x0443), |
| LANG("Vietnamese", "vi", 0x042A), |
| LANG("Xhosa", "xh", 0x0434), |
| LANG("Yiddish", "yi", 0x043D), |
| LANG("Zulu", "zu", 0x0435), |
| LANG(NULL, NULL, 0x0), |
| }; |
| |
| uint16_t get_usb_code_for_current_locale(void) |
| { |
| char *locale; |
| char search_string[64]; |
| char *ptr; |
| struct lang_map_entry *lang; |
| |
| /* Get the current locale. */ |
| locale = setlocale(0, NULL); |
| if (!locale) |
| return 0x0; |
| |
| /* Make a copy of the current locale string. */ |
| strncpy(search_string, locale, sizeof(search_string)); |
| search_string[sizeof(search_string)-1] = '\0'; |
| |
| /* Chop off the encoding part, and make it lower case. */ |
| ptr = search_string; |
| while (*ptr) { |
| *ptr = tolower(*ptr); |
| if (*ptr == '.') { |
| *ptr = '\0'; |
| break; |
| } |
| ptr++; |
| } |
| |
| /* Find the entry which matches the string code of our locale. */ |
| lang = lang_map; |
| while (lang->string_code) { |
| if (!strcmp(lang->string_code, search_string)) { |
| return lang->usb_code; |
| } |
| lang++; |
| } |
| |
| /* There was no match. Find with just the language only. */ |
| /* Chop off the variant. Chop it off at the '_'. */ |
| ptr = search_string; |
| while (*ptr) { |
| *ptr = tolower(*ptr); |
| if (*ptr == '_') { |
| *ptr = '\0'; |
| break; |
| } |
| ptr++; |
| } |
| |
| #if 0 /* TODO: Do we need this? */ |
| /* Find the entry which matches the string code of our language. */ |
| lang = lang_map; |
| while (lang->string_code) { |
| if (!strcmp(lang->string_code, search_string)) { |
| return lang->usb_code; |
| } |
| lang++; |
| } |
| #endif |
| |
| /* Found nothing. */ |
| return 0x0; |
| } |
| |
| #if defined(__cplusplus) && !defined(NAMESPACE) |
| } |
| #endif |
| |
| #ifdef NAMESPACE |
| } |
| #endif |
| |
| #endif /* SDL_JOYSTICK_HIDAPI */ |