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freebsd/sys/compat/ndis/subr_usbd.c
Bill Paul 9b307fe2be This commit makes a bunch of changes, some big, some not so big.
- Remove the old task threads from kern_ndis.c and reimplement them in
  subr_ntoskrnl.c, in order to more properly emulate the Windows DPC
  API. Each CPU gets its own DPC queue/thread, and each queue can
  have low, medium and high importance DPCs. New APIs implemented:
  KeSetTargetProcessorDpc(), KeSetImportanceDpc() and KeFlushQueuedDpcs().
  (This is the biggest change.)

- Fix a bug in NdisMInitializeTimer(): the k_dpc pointer in the
  nmt_timer embedded in the ndis_miniport_timer struct must be set
  to point to the DPC, also embedded in the struct. Failing to do
  this breaks dequeueing of DPCs submitted via timers, and in turn
  breaks cancelling timers.

- Fix a bug in KeCancelTimer(): if the timer is interted in the timer
  queue (i.e. the timeout callback is still pending), we have to both
  untimeout() the timer _and_ call KeRemoveQueueDpc() to nuke the DPC
  that might be pending. Failing to do this breaks cancellation of
  periodic timers, which always appear to be inserted in the timer queue.

- Make use of the nmt_nexttimer field in ndis_miniport_timer: keep a
  queue of pending timers and cancel them all in ndis_halt_nic(), prior
  to calling MiniportHalt(). Also call KeFlushQueuedDpcs() to make sure
  any DPCs queued by the timers have expired.

- Modify NdisMAllocateSharedMemory() and NdisMFreeSharedMemory() to keep
  track of both the virtual and physical addresses of the shared memory
  buffers that get handed out. The AirGo MIMO driver appears to have a bug
  in it: for one of the segments is allocates, it returns the wrong
  virtual address. This would confuse NdisMFreeSharedMemory() and cause
  a crash. Why it doesn't crash Windows too I have no idea (from reading
  the documentation for NdisMFreeSharedMemory(), it appears to be a violation
  of the API).

- Implement strstr(), strchr() and MmIsAddressValid().

- Implement IoAllocateWorkItem(), IoFreeWorkItem(), IoQueueWorkItem() and
  ExQueueWorkItem(). (This is the second biggest change.)

- Make NdisScheduleWorkItem() call ExQueueWorkItem(). (Note that the
  ExQueueWorkItem() API is deprecated by Microsoft, but NDIS still uses
  it, since NdisScheduleWorkItem() is incompatible with the IoXXXWorkItem()
  API.)

- Change if_ndis.c to use the NdisScheduleWorkItem() interface for scheduling
  tasks.

With all these changes and fixes, the AirGo MIMO driver for the Belkin
F5D8010 Pre-N card now works. Special thanks to Paul Robinson
(paul dawt robinson at pwermedia dawt net) for the loan of a card
for testing.
2005-05-05 03:56:09 +00:00

159 lines
4.2 KiB
C

/*-
* Copyright (c) 2005
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/unistd.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/module.h>
#include <sys/conf.h>
#include <sys/mbuf.h>
#include <sys/bus.h>
#include <sys/queue.h>
#include <compat/ndis/pe_var.h>
#include <compat/ndis/cfg_var.h>
#include <compat/ndis/resource_var.h>
#include <compat/ndis/ntoskrnl_var.h>
#include <compat/ndis/ndis_var.h>
#include <compat/ndis/hal_var.h>
#include <compat/ndis/usbd_var.h>
static driver_object usbd_driver;
static uint32_t usbd_iodispatch(device_object *, irp *);
static void USBD_GetUSBDIVersion(usbd_version_info *);
static void dummy(void);
int
usbd_libinit(void)
{
image_patch_table *patch;
patch = usbd_functbl;
while (patch->ipt_func != NULL) {
windrv_wrap((funcptr)patch->ipt_func,
(funcptr *)&patch->ipt_wrap,
patch->ipt_argcnt, patch->ipt_ftype);
patch++;
}
/* Create a fake USB driver instance. */
windrv_bus_attach(&usbd_driver, "USB Bus");
/* Set up our dipatch routine. */
usbd_driver.dro_dispatch[IRP_MJ_INTERNAL_DEVICE_CONTROL] =
(driver_dispatch)usbd_iodispatch;
return(0);
}
int
usbd_libfini(void)
{
image_patch_table *patch;
patch = usbd_functbl;
while (patch->ipt_func != NULL) {
windrv_unwrap(patch->ipt_wrap);
patch++;
}
free(usbd_driver.dro_drivername.us_buf, M_DEVBUF);
return(0);
}
static uint32_t
usbd_iodispatch(dobj, ip)
device_object *dobj;
irp *ip;
{
return(0);
}
static void
USBD_GetUSBDIVersion(ui)
usbd_version_info *ui;
{
/* Pretend to be Windows XP. */
ui->uvi_usbdi_vers = USBDI_VERSION;
ui->uvi_supported_vers = USB_VER_2_0;
return;
}
static void
dummy(void)
{
printf("USBD dummy called\n");
return;
}
image_patch_table usbd_functbl[] = {
IMPORT_SFUNC(USBD_GetUSBDIVersion, 0),
IMPORT_SFUNC(usbd_iodispatch, 2),
#ifdef notyet
IMPORT_FUNC_MAP(_USBD_ParseConfigurationDescriptorEx@28,
USBD_ParseConfigurationDescriptorEx),
IMPORT_FUNC_MAP(_USBD_CreateConfigurationRequestEx@8,
USBD_CreateConfigurationRequestEx),
#endif
/*
* This last entry is a catch-all for any function we haven't
* implemented yet. The PE import list patching routine will
* use it for any function that doesn't have an explicit match
* in this table.
*/
{ NULL, (FUNC)dummy, NULL, 0, WINDRV_WRAP_STDCALL },
/* End of list. */
{ NULL, NULL, NULL }
};