diff options
Diffstat (limited to 'src/os/haiku_usb_raw.cpp')
| -rw-r--r-- | src/os/haiku_usb_raw.cpp | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/os/haiku_usb_raw.cpp b/src/os/haiku_usb_raw.cpp new file mode 100644 index 0000000..bce706c --- /dev/null +++ b/src/os/haiku_usb_raw.cpp @@ -0,0 +1,231 @@ +/* + * Haiku Backend for libusb + * Copyright © 2014 Akshay Jaggi <akshay1994.leo@gmail.com> + * + * 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 <unistd.h> +#include <string.h> +#include <stdlib.h> +#include <new> +#include <vector> + +#include "haiku_usb.h" + +USBRoster gUsbRoster; +int32 gInitCount = 0; + +static int haiku_get_config_descriptor(struct libusb_device *, uint8_t, + void *, size_t); + +static int +haiku_init(struct libusb_context *ctx) +{ + UNUSED(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 **)usbi_get_device_priv(dev_handle->dev)); + 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 **)usbi_get_device_handle_priv(dev_handle)) = handle; + return LIBUSB_SUCCESS; +} + +static void +haiku_close(struct libusb_device_handle *dev_handle) +{ + USBDeviceHandle **pHandle = (USBDeviceHandle **)usbi_get_device_handle_priv(dev_handle); + USBDeviceHandle *handle = *pHandle; + if (handle == NULL) + return; + delete handle; + *pHandle = NULL; +} + +static int +haiku_get_active_config_descriptor(struct libusb_device *device, void *buffer, size_t len) +{ + USBDevice *dev = *((USBDevice **)usbi_get_device_priv(device)); + return haiku_get_config_descriptor(device, dev->ActiveConfigurationIndex(), buffer, len); +} + +static int +haiku_get_config_descriptor(struct libusb_device *device, uint8_t config_index, void *buffer, size_t len) +{ + USBDevice *dev = *((USBDevice **)usbi_get_device_priv(device)); + const usb_configuration_descriptor *config = dev->ConfigurationDescriptor(config_index); + if (config == NULL) { + usbi_err(DEVICE_CTX(device), "failed getting configuration descriptor"); + return LIBUSB_ERROR_IO; + } + if (len > config->total_length) { + len = config->total_length; + } + memcpy(buffer, config, len); + return len; +} + +static int +haiku_set_configuration(struct libusb_device_handle *dev_handle, int config) +{ + USBDeviceHandle *handle= *((USBDeviceHandle **)usbi_get_device_handle_priv(dev_handle)); + if (config <= 0) + return LIBUSB_ERROR_NOT_SUPPORTED; // cannot unconfigure + return handle->SetConfiguration((uint8)config); +} + +static int +haiku_claim_interface(struct libusb_device_handle *dev_handle, uint8_t interface_number) +{ + USBDeviceHandle *handle = *((USBDeviceHandle **)usbi_get_device_handle_priv(dev_handle)); + return handle->ClaimInterface(interface_number); +} + +static int +haiku_set_altsetting(struct libusb_device_handle *dev_handle, uint8_t interface_number, uint8_t altsetting) +{ + USBDeviceHandle *handle = *((USBDeviceHandle **)usbi_get_device_handle_priv(dev_handle)); + return handle->SetAltSetting(interface_number, altsetting); +} + +static int +haiku_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint) +{ + USBDeviceHandle *handle = *((USBDeviceHandle **)usbi_get_device_handle_priv(dev_handle)); + return handle->ClearHalt(endpoint); +} + +static int +haiku_release_interface(struct libusb_device_handle *dev_handle, uint8_t interface_number) +{ + USBDeviceHandle *handle = *((USBDeviceHandle **)usbi_get_device_handle_priv(dev_handle)); + 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 **)usbi_get_device_handle_priv(fLibusbTransfer->dev_handle)); + 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 **)usbi_get_device_handle_priv(fLibusbTransfer->dev_handle)); + return fDeviceHandle->CancelTransfer(*((USBTransfer **)usbi_get_transfer_priv(itransfer))); +} + +static int +haiku_handle_transfer_completion(struct usbi_transfer *itransfer) +{ + USBTransfer **pTransfer = (USBTransfer **)usbi_get_transfer_priv(itransfer); + USBTransfer *transfer = *pTransfer; + + usbi_mutex_lock(&itransfer->lock); + if (transfer->IsCancelled()) { + delete transfer; + *pTransfer = 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; + *pTransfer = NULL; + usbi_mutex_unlock(&itransfer->lock); + return usbi_handle_transfer_completion(itransfer, status); +} + +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, + /*.wrap_sys_device =*/ NULL, + /*.open =*/ haiku_open, + /*.close =*/ haiku_close, + + /*.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 =*/ haiku_clear_halt, + /*.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 =*/ NULL, + + /*.handle_events =*/ NULL, + /*.handle_transfer_completion =*/ haiku_handle_transfer_completion, + + /*.context_priv_size =*/ 0, + /*.device_priv_size =*/ sizeof(USBDevice *), + /*.device_handle_priv_size =*/ sizeof(USBDeviceHandle *), + /*.transfer_priv_size =*/ sizeof(USBTransfer *), +}; 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