diff options
Diffstat (limited to 'Source/external/SDL2/src/hidapi/linux/hid.cpp')
| -rw-r--r-- | Source/external/SDL2/src/hidapi/linux/hid.cpp | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/hidapi/linux/hid.cpp b/Source/external/SDL2/src/hidapi/linux/hid.cpp new file mode 100644 index 0000000..841f34f --- /dev/null +++ b/Source/external/SDL2/src/hidapi/linux/hid.cpp @@ -0,0 +1,333 @@ +//=================== Copyright Valve Corporation, All rights reserved. ======= +// +// Purpose: A wrapper around both the libusb and hidraw versions of HIDAPI +// +// The libusb version doesn't support Bluetooth, but not all Linux +// distributions allow access to /dev/hidraw* +// +// This merges the two, at a small performance cost, until distributions +// have granted access to /dev/hidraw* +// +//============================================================================= + +#define NAMESPACE HIDRAW +#include "../hidapi/hidapi.h" +#undef NAMESPACE +#undef HIDAPI_H__ + +#define NAMESPACE HIDUSB +#include "../hidapi/hidapi.h" +#undef NAMESPACE +#undef HIDAPI_H__ + +#include "../hidapi/hidapi.h" + +#include "../../../public/tier1/utlvector.h" +#include "../../../public/tier1/utlhashmap.h" + + +template <class T> +void CopyHIDDeviceInfo( T *pSrc, struct hid_device_info *pDst ) +{ + pDst->path = pSrc->path ? strdup( pSrc->path ) : NULL; + pDst->vendor_id = pSrc->vendor_id; + pDst->product_id = pSrc->product_id; + pDst->serial_number = pSrc->serial_number ? wcsdup( pSrc->serial_number ) : NULL; + pDst->release_number = pSrc->release_number; + pDst->manufacturer_string = pSrc->manufacturer_string ? wcsdup( pSrc->manufacturer_string ) : NULL; + pDst->product_string = pSrc->product_string ? wcsdup( pSrc->product_string ) : NULL; + pDst->usage_page = pSrc->usage_page; + pDst->usage = pSrc->usage; + pDst->interface_number = pSrc->interface_number; + pDst->next = NULL; +} + +extern "C" +{ + +enum EHIDAPIType +{ + k_EHIDAPIUnknown, + k_EHIDAPIRAW, + k_EHIDAPIUSB +}; + +static CUtlHashMap<uintptr_t, EHIDAPIType> s_hashDeviceToAPI; + +static EHIDAPIType GetAPIForDevice( hid_device *pDevice ) +{ + int iIndex = s_hashDeviceToAPI.Find( (uintptr_t)pDevice ); + if ( iIndex != -1 ) + { + return s_hashDeviceToAPI[ iIndex ]; + } + return k_EHIDAPIUnknown; +} + +struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned short vendor_id, unsigned short product_id) +{ + struct HIDUSB::hid_device_info *usb_devs = HIDUSB::hid_enumerate( vendor_id, product_id ); + struct HIDUSB::hid_device_info *usb_dev; + struct HIDRAW::hid_device_info *raw_devs = HIDRAW::hid_enumerate( vendor_id, product_id ); + struct HIDRAW::hid_device_info *raw_dev; + struct hid_device_info *devs = NULL, *last = NULL, *new_dev; + + for ( usb_dev = usb_devs; usb_dev; usb_dev = usb_dev->next ) + { + bool bFound = false; + for ( raw_dev = raw_devs; raw_dev; raw_dev = raw_dev->next ) + { + if ( usb_dev->vendor_id == raw_dev->vendor_id && usb_dev->product_id == raw_dev->product_id ) + { + bFound = true; + break; + } + } + +//printf("%s USB device VID/PID 0x%.4x/0x%.4x, %ls %ls\n", bFound ? "Found matching" : "Added new", usb_dev->vendor_id, usb_dev->product_id, usb_dev->manufacturer_string, usb_dev->product_string ); + + if ( !bFound ) + { + new_dev = new struct hid_device_info; + CopyHIDDeviceInfo( usb_dev, new_dev ); + + if ( last ) + { + last->next = new_dev; + } + else + { + devs = new_dev; + } + last = new_dev; + } + } + HIDUSB::hid_free_enumeration( usb_devs ); + + for ( raw_dev = raw_devs; raw_dev; raw_dev = raw_dev->next ) + { + new_dev = new struct hid_device_info; + CopyHIDDeviceInfo( raw_dev, new_dev ); + new_dev->next = NULL; + + if ( last ) + { + last->next = new_dev; + } + else + { + devs = new_dev; + } + last = new_dev; + } + HIDRAW::hid_free_enumeration( raw_devs ); + + return devs; +} + +void HID_API_EXPORT HID_API_CALL hid_free_enumeration(struct hid_device_info *devs) +{ + while ( devs ) + { + struct hid_device_info *next = devs->next; + free( devs->path ); + free( devs->serial_number ); + free( devs->manufacturer_string ); + free( devs->product_string ); + delete devs; + devs = next; + } +} + +HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number) +{ + hid_device *pDevice = NULL; + if ( ( pDevice = (hid_device *)HIDRAW::hid_open( vendor_id, product_id, serial_number ) ) != NULL ) + { + s_hashDeviceToAPI.Insert( (uintptr_t)pDevice, k_EHIDAPIRAW ); + return pDevice; + } + if ( ( pDevice = (hid_device *)HIDUSB::hid_open( vendor_id, product_id, serial_number ) ) != NULL ) + { + s_hashDeviceToAPI.Insert( (uintptr_t)pDevice, k_EHIDAPIUSB ); + return pDevice; + } + return NULL; +} + +HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path, int bExclusive) +{ + hid_device *pDevice = NULL; + if ( ( pDevice = (hid_device *)HIDRAW::hid_open_path( path, bExclusive ) ) != NULL ) + { + s_hashDeviceToAPI.Insert( (uintptr_t)pDevice, k_EHIDAPIRAW ); + return pDevice; + } + if ( ( pDevice = (hid_device *)HIDUSB::hid_open_path( path, bExclusive ) ) != NULL ) + { + s_hashDeviceToAPI.Insert( (uintptr_t)pDevice, k_EHIDAPIUSB ); + return pDevice; + } + return NULL; +} + +int HID_API_EXPORT HID_API_CALL hid_write(hid_device *device, const unsigned char *data, size_t length) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_write( (HIDRAW::hid_device*)device, data, length ); + case k_EHIDAPIUSB: + return HIDUSB::hid_write( (HIDUSB::hid_device*)device, data, length ); + default: + return -1; + } +} + +int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *device, unsigned char *data, size_t length, int milliseconds) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_read_timeout( (HIDRAW::hid_device*)device, data, length, milliseconds ); + case k_EHIDAPIUSB: + return HIDUSB::hid_read_timeout( (HIDUSB::hid_device*)device, data, length, milliseconds ); + default: + return -1; + } +} + +int HID_API_EXPORT HID_API_CALL hid_read(hid_device *device, unsigned char *data, size_t length) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_read( (HIDRAW::hid_device*)device, data, length ); + case k_EHIDAPIUSB: + return HIDUSB::hid_read( (HIDUSB::hid_device*)device, data, length ); + default: + return -1; + } +} + +int HID_API_EXPORT HID_API_CALL hid_set_nonblocking(hid_device *device, int nonblock) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_set_nonblocking( (HIDRAW::hid_device*)device, nonblock ); + case k_EHIDAPIUSB: + return HIDUSB::hid_set_nonblocking( (HIDUSB::hid_device*)device, nonblock ); + default: + return -1; + } +} + +int HID_API_EXPORT HID_API_CALL hid_send_feature_report(hid_device *device, const unsigned char *data, size_t length) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_send_feature_report( (HIDRAW::hid_device*)device, data, length ); + case k_EHIDAPIUSB: + return HIDUSB::hid_send_feature_report( (HIDUSB::hid_device*)device, data, length ); + default: + return -1; + } +} + +int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *device, unsigned char *data, size_t length) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_get_feature_report( (HIDRAW::hid_device*)device, data, length ); + case k_EHIDAPIUSB: + return HIDUSB::hid_get_feature_report( (HIDUSB::hid_device*)device, data, length ); + default: + return -1; + } +} + +void HID_API_EXPORT HID_API_CALL hid_close(hid_device *device) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + HIDRAW::hid_close( (HIDRAW::hid_device*)device ); + break; + case k_EHIDAPIUSB: + HIDUSB::hid_close( (HIDUSB::hid_device*)device ); + break; + default: + break; + } + s_hashDeviceToAPI.Remove( (uintptr_t)device ); +} + +int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *device, wchar_t *string, size_t maxlen) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_get_manufacturer_string( (HIDRAW::hid_device*)device, string, maxlen ); + case k_EHIDAPIUSB: + return HIDUSB::hid_get_manufacturer_string( (HIDUSB::hid_device*)device, string, maxlen ); + default: + return -1; + } +} + +int HID_API_EXPORT_CALL hid_get_product_string(hid_device *device, wchar_t *string, size_t maxlen) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_get_product_string( (HIDRAW::hid_device*)device, string, maxlen ); + case k_EHIDAPIUSB: + return HIDUSB::hid_get_product_string( (HIDUSB::hid_device*)device, string, maxlen ); + default: + return -1; + } +} + +int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *device, wchar_t *string, size_t maxlen) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_get_serial_number_string( (HIDRAW::hid_device*)device, string, maxlen ); + case k_EHIDAPIUSB: + return HIDUSB::hid_get_serial_number_string( (HIDUSB::hid_device*)device, string, maxlen ); + default: + return -1; + } +} + +int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *device, int string_index, wchar_t *string, size_t maxlen) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_get_indexed_string( (HIDRAW::hid_device*)device, string_index, string, maxlen ); + case k_EHIDAPIUSB: + return HIDUSB::hid_get_indexed_string( (HIDUSB::hid_device*)device, string_index, string, maxlen ); + default: + return -1; + } +} + +HID_API_EXPORT const wchar_t* HID_API_CALL hid_error(hid_device *device) +{ + switch ( GetAPIForDevice( device ) ) + { + case k_EHIDAPIRAW: + return HIDRAW::hid_error( (HIDRAW::hid_device*)device ); + case k_EHIDAPIUSB: + return HIDUSB::hid_error( (HIDUSB::hid_device*)device ); + default: + return NULL; + } +} + +} |