/* * Haiku Backend for libusb * Copyright © 2014 Akshay Jaggi * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include "haiku_usb.h" USBRoster gUsbRoster; int32 gInitCount = 0; static int haiku_init(struct libusb_context *ctx) { if (atomic_add(&gInitCount, 1) == 0) return gUsbRoster.Start(); return LIBUSB_SUCCESS; } static void haiku_exit(struct libusb_context *ctx) { UNUSED(ctx); if (atomic_add(&gInitCount, -1) == 1) gUsbRoster.Stop(); } static int haiku_open(struct libusb_device_handle *dev_handle) { USBDevice *dev = *((USBDevice **)dev_handle->dev->os_priv); USBDeviceHandle *handle = new(std::nothrow) USBDeviceHandle(dev); if (handle == NULL) return LIBUSB_ERROR_NO_MEM; if (handle->InitCheck() == false) { delete handle; return LIBUSB_ERROR_NO_DEVICE; } *((USBDeviceHandle **)dev_handle->os_priv) = handle; return LIBUSB_SUCCESS; } static void haiku_close(struct libusb_device_handle *dev_handle) { USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv); if (handle == NULL) return; delete handle; *((USBDeviceHandle **)dev_handle->os_priv) = NULL; } static int haiku_get_device_descriptor(struct libusb_device *device, unsigned char *buffer, int *host_endian) { USBDevice *dev = *((USBDevice **)device->os_priv); memcpy(buffer, dev->Descriptor(), DEVICE_DESC_LENGTH); *host_endian = 0; return LIBUSB_SUCCESS; } static int haiku_get_active_config_descriptor(struct libusb_device *device, unsigned char *buffer, size_t len, int *host_endian) { USBDevice *dev = *((USBDevice **)device->os_priv); const usb_configuration_descriptor *act_config = dev->ActiveConfiguration(); if (len > act_config->total_length) return LIBUSB_ERROR_OVERFLOW; memcpy(buffer, act_config, len); *host_endian = 0; return LIBUSB_SUCCESS; } static int haiku_get_config_descriptor(struct libusb_device *device, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian) { USBDevice *dev = *((USBDevice **)device->os_priv); const usb_configuration_descriptor *config = dev->ConfigurationDescriptor(config_index); if (config == NULL) { usbi_err(DEVICE_CTX(device), "failed getting configuration descriptor"); return LIBUSB_ERROR_INVALID_PARAM; } if (len > config->total_length) len = config->total_length; memcpy(buffer, config, len); *host_endian = 0; return len; } static int haiku_set_configuration(struct libusb_device_handle *dev_handle, int config) { USBDeviceHandle *handle= *((USBDeviceHandle **)dev_handle->os_priv); return handle->SetConfiguration(config); } static int haiku_claim_interface(struct libusb_device_handle *dev_handle, int interface_number) { USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv); return handle->ClaimInterface(interface_number); } static int haiku_set_altsetting(struct libusb_device_handle *dev_handle, int interface_number, int altsetting) { USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv); return handle->SetAltSetting(interface_number, altsetting); } static int haiku_release_interface(struct libusb_device_handle *dev_handle, int interface_number) { USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv); haiku_set_altsetting(dev_handle,interface_number, 0); return handle->ReleaseInterface(interface_number); } static int haiku_submit_transfer(struct usbi_transfer *itransfer) { struct libusb_transfer *fLibusbTransfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer); USBDeviceHandle *fDeviceHandle = *((USBDeviceHandle **)fLibusbTransfer->dev_handle->os_priv); return fDeviceHandle->SubmitTransfer(itransfer); } static int haiku_cancel_transfer(struct usbi_transfer *itransfer) { struct libusb_transfer *fLibusbTransfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer); USBDeviceHandle *fDeviceHandle = *((USBDeviceHandle **)fLibusbTransfer->dev_handle->os_priv); return fDeviceHandle->CancelTransfer(*((USBTransfer **)usbi_transfer_get_os_priv(itransfer))); } static void haiku_clear_transfer_priv(struct usbi_transfer *itransfer) { USBTransfer *transfer = *((USBTransfer **)usbi_transfer_get_os_priv(itransfer)); delete transfer; *((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = NULL; } static int haiku_handle_transfer_completion(struct usbi_transfer *itransfer) { USBTransfer *transfer = *((USBTransfer **)usbi_transfer_get_os_priv(itransfer)); usbi_mutex_lock(&itransfer->lock); if (transfer->IsCancelled()) { delete transfer; *((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = NULL; usbi_mutex_unlock(&itransfer->lock); if (itransfer->transferred < 0) itransfer->transferred = 0; return usbi_handle_transfer_cancellation(itransfer); } libusb_transfer_status status = LIBUSB_TRANSFER_COMPLETED; if (itransfer->transferred < 0) { usbi_err(ITRANSFER_CTX(itransfer), "error in transfer"); status = LIBUSB_TRANSFER_ERROR; itransfer->transferred = 0; } delete transfer; *((USBTransfer **)usbi_transfer_get_os_priv(itransfer)) = NULL; usbi_mutex_unlock(&itransfer->lock); return usbi_handle_transfer_completion(itransfer, status); } static int haiku_clock_gettime(int clkid, struct timespec *tp) { if (clkid == USBI_CLOCK_REALTIME) return clock_gettime(CLOCK_REALTIME, tp); if (clkid == USBI_CLOCK_MONOTONIC) return clock_gettime(CLOCK_MONOTONIC, tp); return LIBUSB_ERROR_INVALID_PARAM; } const struct usbi_os_backend usbi_backend = { /*.name =*/ "Haiku usbfs", /*.caps =*/ 0, /*.init =*/ haiku_init, /*.exit =*/ haiku_exit, /*.set_option =*/ NULL, /*.get_device_list =*/ NULL, /*.hotplug_poll =*/ NULL, /*.open =*/ haiku_open, /*.close =*/ haiku_close, /*.get_device_descriptor =*/ haiku_get_device_descriptor, /*.get_active_config_descriptor =*/ haiku_get_active_config_descriptor, /*.get_config_descriptor =*/ haiku_get_config_descriptor, /*.get_config_descriptor_by_value =*/ NULL, /*.get_configuration =*/ NULL, /*.set_configuration =*/ haiku_set_configuration, /*.claim_interface =*/ haiku_claim_interface, /*.release_interface =*/ haiku_release_interface, /*.set_interface_altsetting =*/ haiku_set_altsetting, /*.clear_halt =*/ NULL, /*.reset_device =*/ NULL, /*.alloc_streams =*/ NULL, /*.free_streams =*/ NULL, /*.dev_mem_alloc =*/ NULL, /*.dev_mem_free =*/ NULL, /*.kernel_driver_active =*/ NULL, /*.detach_kernel_driver =*/ NULL, /*.attach_kernel_driver =*/ NULL, /*.destroy_device =*/ NULL, /*.submit_transfer =*/ haiku_submit_transfer, /*.cancel_transfer =*/ haiku_cancel_transfer, /*.clear_transfer_priv =*/ haiku_clear_transfer_priv, /*.handle_events =*/ NULL, /*.handle_transfer_completion =*/ haiku_handle_transfer_completion, /*.clock_gettime =*/ haiku_clock_gettime, #ifdef USBI_TIMERFD_AVAILABLE /*.get_timerfd_clockid =*/ NULL, #endif /*.context_priv_size=*/ 0, /*.device_priv_size =*/ sizeof(USBDevice *), /*.device_handle_priv_size =*/ sizeof(USBDeviceHandle *), /*.transfer_priv_size =*/ sizeof(USBTransfer *), };