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9b307fe2be
- 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.
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/*-
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* Copyright (c) 2003
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* Bill Paul <wpaul@windriver.com>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#define NDIS_DEFAULT_NODENAME "FreeBSD NDIS node"
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#define NDIS_NODENAME_LEN 32
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struct ndis_pci_type {
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uint16_t ndis_vid;
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uint16_t ndis_did;
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uint32_t ndis_subsys;
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char *ndis_name;
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};
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struct ndis_pccard_type {
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const char *ndis_vid;
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const char *ndis_did;
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char *ndis_name;
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};
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struct ndis_shmem {
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bus_dma_tag_t ndis_stag;
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bus_dmamap_t ndis_smap;
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void *ndis_saddr;
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ndis_physaddr ndis_paddr;
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struct ndis_shmem *ndis_next;
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};
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struct ndis_cfglist {
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ndis_cfg ndis_cfg;
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TAILQ_ENTRY(ndis_cfglist) link;
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};
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TAILQ_HEAD(nch, ndis_cfglist);
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#define NDIS_INITIALIZED(sc) (sc->ndis_block->nmb_miniportadapterctx != NULL)
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#define NDIS_INC(x) \
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(x)->ndis_txidx = ((x)->ndis_txidx + 1) % (x)->ndis_maxpkts
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struct ndis_softc {
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struct arpcom arpcom;
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struct ieee80211com ic; /* interface info */
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#ifdef notdef
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struct ieee80211com arpcom; /* interface info */
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#endif
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struct ifmedia ifmedia; /* media info */
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u_long ndis_hwassist;
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uint32_t ndis_v4tx;
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uint32_t ndis_v4rx;
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bus_space_handle_t ndis_bhandle;
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bus_space_tag_t ndis_btag;
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void *ndis_intrhand;
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struct resource *ndis_irq;
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struct resource *ndis_res;
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struct resource *ndis_res_io;
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int ndis_io_rid;
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struct resource *ndis_res_mem;
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int ndis_mem_rid;
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struct resource *ndis_res_altmem;
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int ndis_altmem_rid;
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struct resource *ndis_res_am; /* attribute mem (pccard) */
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int ndis_am_rid;
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struct resource *ndis_res_cm; /* common mem (pccard) */
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struct resource_list ndis_rl;
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int ndis_rescnt;
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struct mtx ndis_mtx;
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device_t ndis_dev;
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int ndis_unit;
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ndis_miniport_block *ndis_block;
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ndis_miniport_characteristics *ndis_chars;
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interface_type ndis_type;
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struct callout_handle ndis_stat_ch;
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int ndis_maxpkts;
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ndis_oid *ndis_oids;
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int ndis_oidcnt;
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int ndis_txidx;
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int ndis_txpending;
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ndis_packet **ndis_txarray;
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ndis_handle ndis_txpool;
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int ndis_sc;
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ndis_cfg *ndis_regvals;
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struct nch ndis_cfglist_head;
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int ndis_80211;
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int ndis_link;
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uint32_t ndis_filter;
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int ndis_if_flags;
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int ndis_skip;
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#if __FreeBSD_version < 502113
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struct sysctl_ctx_list ndis_ctx;
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struct sysctl_oid *ndis_tree;
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#endif
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int ndis_devidx;
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interface_type ndis_iftype;
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driver_object *ndis_dobj;
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ndis_work_item ndis_tickitem;
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ndis_work_item ndis_startitem;
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ndis_work_item ndis_resetitem;
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bus_dma_tag_t ndis_parent_tag;
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struct ndis_shmem *ndis_shlist;
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bus_dma_tag_t ndis_mtag;
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bus_dma_tag_t ndis_ttag;
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bus_dmamap_t *ndis_mmaps;
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bus_dmamap_t *ndis_tmaps;
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int ndis_mmapcnt;
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};
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#define NDIS_LOCK(_sc) mtx_lock(&(_sc)->ndis_mtx)
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#define NDIS_UNLOCK(_sc) mtx_unlock(&(_sc)->ndis_mtx)
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