[iwm] add if_iwm_fw.c.
This commit is contained in:
Adrian Chadd
parent
87de303c4a
commit
9c8efa1dfb
341
sys/dev/iwm/if_iwm_fw.c
Normal file
341
sys/dev/iwm/if_iwm_fw.c
Normal file
@ -0,0 +1,341 @@
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/*-
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* Based on BSD-licensed source modules in the Linux iwlwifi driver,
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* which were used as the reference documentation for this implementation.
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*
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* Driver version we are currently based off of is
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* Linux 4.7.3 (tag id d7f6728f57e3ecbb7ef34eb7d9f564d514775d75)
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*
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***********************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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* Copyright(c) 2016 Intel Deutschland GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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* 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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||||
*
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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
|
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/endian.h>
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#include <sys/firmware.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/mutex.h>
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#include <sys/module.h>
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#include <sys/proc.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/linker.h>
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#include <machine/bus.h>
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#include <machine/endian.h>
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#include <machine/resource.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/iwm/if_iwmreg.h>
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#include <dev/iwm/if_iwmvar.h>
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#include <dev/iwm/if_iwm_debug.h>
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#include <dev/iwm/if_iwm_util.h>
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#include <dev/iwm/if_iwm_fw.h>
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void
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iwm_free_fw_paging(struct iwm_softc *sc)
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{
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int i;
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if (sc->fw_paging_db[0].fw_paging_block.vaddr == NULL)
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return;
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for (i = 0; i < IWM_NUM_OF_FW_PAGING_BLOCKS; i++) {
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iwm_dma_contig_free(&sc->fw_paging_db[i].fw_paging_block);
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}
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memset(sc->fw_paging_db, 0, sizeof(sc->fw_paging_db));
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}
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static int
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iwm_fill_paging_mem(struct iwm_softc *sc, const struct iwm_fw_sects *image)
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{
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int sec_idx, idx;
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uint32_t offset = 0;
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/*
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* find where is the paging image start point:
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* if CPU2 exist and it's in paging format, then the image looks like:
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* CPU1 sections (2 or more)
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* CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2
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* CPU2 sections (not paged)
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* PAGING_SEPARATOR_SECTION delimiter - separate between CPU2
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* non paged to CPU2 paging sec
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* CPU2 paging CSS
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* CPU2 paging image (including instruction and data)
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*/
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for (sec_idx = 0; sec_idx < IWM_UCODE_SECTION_MAX; sec_idx++) {
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if (image->fw_sect[sec_idx].offset == IWM_PAGING_SEPARATOR_SECTION) {
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sec_idx++;
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break;
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}
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}
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/*
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* If paging is enabled there should be at least 2 more sections left
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* (one for CSS and one for Paging data)
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*/
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if (sec_idx >= nitems(image->fw_sect) - 1) {
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device_printf(sc->sc_dev,
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"Paging: Missing CSS and/or paging sections\n");
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iwm_free_fw_paging(sc);
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return EINVAL;
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}
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/* copy the CSS block to the dram */
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: load paging CSS to FW, sec = %d\n",
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sec_idx);
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memcpy(sc->fw_paging_db[0].fw_paging_block.vaddr,
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image->fw_sect[sec_idx].data,
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sc->fw_paging_db[0].fw_paging_size);
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: copied %d CSS bytes to first block\n",
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sc->fw_paging_db[0].fw_paging_size);
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sec_idx++;
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/*
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* copy the paging blocks to the dram
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* loop index start from 1 since that CSS block already copied to dram
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* and CSS index is 0.
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* loop stop at num_of_paging_blk since that last block is not full.
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*/
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for (idx = 1; idx < sc->num_of_paging_blk; idx++) {
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memcpy(sc->fw_paging_db[idx].fw_paging_block.vaddr,
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(const char *)image->fw_sect[sec_idx].data + offset,
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sc->fw_paging_db[idx].fw_paging_size);
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: copied %d paging bytes to block %d\n",
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sc->fw_paging_db[idx].fw_paging_size,
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idx);
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offset += sc->fw_paging_db[idx].fw_paging_size;
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}
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/* copy the last paging block */
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if (sc->num_of_pages_in_last_blk > 0) {
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memcpy(sc->fw_paging_db[idx].fw_paging_block.vaddr,
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(const char *)image->fw_sect[sec_idx].data + offset,
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IWM_FW_PAGING_SIZE * sc->num_of_pages_in_last_blk);
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: copied %d pages in the last block %d\n",
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sc->num_of_pages_in_last_blk, idx);
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}
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return 0;
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}
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static int
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iwm_alloc_fw_paging_mem(struct iwm_softc *sc, const struct iwm_fw_sects *image)
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{
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int blk_idx = 0;
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int error, num_of_pages;
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if (sc->fw_paging_db[0].fw_paging_block.vaddr != NULL) {
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int i;
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/* Device got reset, and we setup firmware paging again */
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for (i = 0; i < sc->num_of_paging_blk + 1; i++) {
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bus_dmamap_sync(sc->sc_dmat,
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sc->fw_paging_db[i].fw_paging_block.map,
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BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
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}
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return 0;
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}
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/* ensure IWM_BLOCK_2_EXP_SIZE is power of 2 of IWM_PAGING_BLOCK_SIZE */
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_Static_assert((1 << IWM_BLOCK_2_EXP_SIZE) == IWM_PAGING_BLOCK_SIZE,
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"IWM_BLOCK_2_EXP_SIZE must be power of 2 of IWM_PAGING_BLOCK_SIZE");
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num_of_pages = image->paging_mem_size / IWM_FW_PAGING_SIZE;
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sc->num_of_paging_blk = ((num_of_pages - 1) /
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IWM_NUM_OF_PAGE_PER_GROUP) + 1;
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sc->num_of_pages_in_last_blk =
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num_of_pages -
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IWM_NUM_OF_PAGE_PER_GROUP * (sc->num_of_paging_blk - 1);
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
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sc->num_of_paging_blk,
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sc->num_of_pages_in_last_blk);
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/* allocate block of 4Kbytes for paging CSS */
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error = iwm_dma_contig_alloc(sc->sc_dmat,
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&sc->fw_paging_db[blk_idx].fw_paging_block, IWM_FW_PAGING_SIZE,
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4096);
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if (error) {
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/* free all the previous pages since we failed */
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iwm_free_fw_paging(sc);
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return ENOMEM;
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}
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sc->fw_paging_db[blk_idx].fw_paging_size = IWM_FW_PAGING_SIZE;
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: allocated 4K(CSS) bytes for firmware paging.\n");
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/*
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* allocate blocks in dram.
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* since that CSS allocated in fw_paging_db[0] loop start from index 1
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*/
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for (blk_idx = 1; blk_idx < sc->num_of_paging_blk + 1; blk_idx++) {
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/* allocate block of IWM_PAGING_BLOCK_SIZE (32K) */
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/* XXX Use iwm_dma_contig_alloc for allocating */
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error = iwm_dma_contig_alloc(sc->sc_dmat,
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&sc->fw_paging_db[blk_idx].fw_paging_block,
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IWM_PAGING_BLOCK_SIZE, 4096);
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if (error) {
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/* free all the previous pages since we failed */
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iwm_free_fw_paging(sc);
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return ENOMEM;
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}
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sc->fw_paging_db[blk_idx].fw_paging_size = IWM_PAGING_BLOCK_SIZE;
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IWM_DPRINTF(sc, IWM_DEBUG_FW,
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"Paging: allocated 32K bytes for firmware paging.\n");
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}
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return 0;
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}
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int
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iwm_save_fw_paging(struct iwm_softc *sc, const struct iwm_fw_sects *fw)
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{
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int ret;
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ret = iwm_alloc_fw_paging_mem(sc, fw);
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if (ret)
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return ret;
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return iwm_fill_paging_mem(sc, fw);
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}
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/* send paging cmd to FW in case CPU2 has paging image */
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int
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iwm_send_paging_cmd(struct iwm_softc *sc, const struct iwm_fw_sects *fw)
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{
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int blk_idx;
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uint32_t dev_phy_addr;
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struct iwm_fw_paging_cmd fw_paging_cmd = {
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.flags =
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htole32(IWM_PAGING_CMD_IS_SECURED |
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IWM_PAGING_CMD_IS_ENABLED |
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(sc->num_of_pages_in_last_blk <<
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IWM_PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
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.block_size = htole32(IWM_BLOCK_2_EXP_SIZE),
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.block_num = htole32(sc->num_of_paging_blk),
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};
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/* loop for for all paging blocks + CSS block */
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for (blk_idx = 0; blk_idx < sc->num_of_paging_blk + 1; blk_idx++) {
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dev_phy_addr = htole32(
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sc->fw_paging_db[blk_idx].fw_paging_block.paddr >>
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IWM_PAGE_2_EXP_SIZE);
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fw_paging_cmd.device_phy_addr[blk_idx] = dev_phy_addr;
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bus_dmamap_sync(sc->sc_dmat,
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sc->fw_paging_db[blk_idx].fw_paging_block.map,
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BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
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}
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return iwm_mvm_send_cmd_pdu(sc, iwm_cmd_id(IWM_FW_PAGING_BLOCK_CMD,
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IWM_ALWAYS_LONG_GROUP, 0),
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0, sizeof(fw_paging_cmd), &fw_paging_cmd);
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}
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113
sys/dev/iwm/if_iwm_fw.h
Normal file
113
sys/dev/iwm/if_iwm_fw.h
Normal file
@ -0,0 +1,113 @@
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/*-
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* Based on BSD-licensed source modules in the Linux iwlwifi driver,
|
||||
* which were used as the reference documentation for this implementation.
|
||||
*
|
||||
* Driver version we are currently based off of is
|
||||
* Linux 4.7.3 (tag id d7f6728f57e3ecbb7ef34eb7d9f564d514775d75)
|
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*
|
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***********************************************************************
|
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*
|
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* This file is provided under a dual BSD/GPLv2 license. When using or
|
||||
* redistributing this file, you may do so under either license.
|
||||
*
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* GPL LICENSE SUMMARY
|
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*
|
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* Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
|
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
|
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* Copyright(c) 2016 Intel Deutschland GmbH
|
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*
|
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* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of version 2 of the GNU General Public License as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program 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
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
|
||||
* USA
|
||||
*
|
||||
* The full GNU General Public License is included in this distribution
|
||||
* in the file called COPYING.
|
||||
*
|
||||
* Contact Information:
|
||||
* Intel Linux Wireless <linuxwifi@intel.com>
|
||||
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
|
||||
*
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* BSD LICENSE
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*
|
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* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
|
||||
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
|
||||
* Copyright(c) 2016 Intel Deutschland GmbH
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * 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.
|
||||
* * Neither the name Intel Corporation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT
|
||||
* OWNER OR CONTRIBUTORS 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.
|
||||
*/
|
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/*
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* $FreeBSD$
|
||||
*/
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#ifndef __IF_IWM_FW_H__
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#define __IF_IWM_FW_H__
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/*
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* Block paging calculations
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*/
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#define IWM_PAGE_2_EXP_SIZE 12 /* 4K == 2^12 */
|
||||
#define IWM_FW_PAGING_SIZE (1 << IWM_PAGE_2_EXP_SIZE) /* page size is 4KB */
|
||||
#define IWM_PAGE_PER_GROUP_2_EXP_SIZE 3
|
||||
/* 8 pages per group */
|
||||
#define IWM_NUM_OF_PAGE_PER_GROUP (1 << IWM_PAGE_PER_GROUP_2_EXP_SIZE)
|
||||
/* don't change, support only 32KB size */
|
||||
#define IWM_PAGING_BLOCK_SIZE (IWM_NUM_OF_PAGE_PER_GROUP * IWM_FW_PAGING_SIZE)
|
||||
/* 32K == 2^15 */
|
||||
#define IWM_BLOCK_2_EXP_SIZE (IWM_PAGE_2_EXP_SIZE + IWM_PAGE_PER_GROUP_2_EXP_SIZE)
|
||||
|
||||
/*
|
||||
* Image paging calculations
|
||||
*/
|
||||
#define IWM_BLOCK_PER_IMAGE_2_EXP_SIZE 5
|
||||
/* 2^5 == 32 blocks per image */
|
||||
#define IWM_NUM_OF_BLOCK_PER_IMAGE (1 << IWM_BLOCK_PER_IMAGE_2_EXP_SIZE)
|
||||
/* maximum image size 1024KB */
|
||||
#define IWM_MAX_PAGING_IMAGE_SIZE (IWM_NUM_OF_BLOCK_PER_IMAGE * IWM_PAGING_BLOCK_SIZE)
|
||||
|
||||
/* Virtual address signature */
|
||||
#define IWM_PAGING_ADDR_SIG 0xAA000000
|
||||
|
||||
#define IWM_PAGING_CMD_IS_SECURED (1 << 9)
|
||||
#define IWM_PAGING_CMD_IS_ENABLED (1 << 8)
|
||||
#define IWM_PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS 0
|
||||
#define IWM_PAGING_TLV_SECURE_MASK 1
|
||||
|
||||
extern void iwm_free_fw_paging(struct iwm_softc *);
|
||||
extern int iwm_save_fw_paging(struct iwm_softc *, const struct iwm_fw_sects *);
|
||||
extern int iwm_send_paging_cmd(struct iwm_softc *, const struct iwm_fw_sects *);
|
||||
|
||||
#endif /* __IF_IWM_FW_H__ */
|
||||
Loading…
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Reference in New Issue
Block a user