blob: 67b270d07c3c84c58843f0421042698e6da0bf89 [file] [log] [blame] [edit]
/*
* 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,
unsigned char *, size_t, int *);
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);
return haiku_get_config_descriptor(device, dev->ActiveConfigurationIndex(), buffer, len, host_endian);
}
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_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint)
{
USBDeviceHandle *handle = *((USBDeviceHandle **)dev_handle->os_priv);
return handle->ClearHalt(endpoint);
}
static int
haiku_reset_device(struct libusb_device_handle *dev_handle)
{
/* TODO */
return LIBUSB_ERROR_NOT_SUPPORTED;
}
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,
.wrap_sys_device = 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 = haiku_clear_halt,
.reset_device = haiku_reset_device,
.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 *),
};