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      1 /*	$NetBSD: if_iwmvar.h,v 1.20 2020/05/22 20:27:16 thorpej Exp $	*/
      2 /*	OpenBSD: if_iwmvar.h,v 1.24 2016/09/21 13:53:18 stsp Exp 	*/
      3 
      4 /*
      5  * Copyright (c) 2014 genua mbh <info (at) genua.de>
      6  * Copyright (c) 2014 Fixup Software Ltd.
      7  *
      8  * Permission to use, copy, modify, and distribute this software for any
      9  * purpose with or without fee is hereby granted, provided that the above
     10  * copyright notice and this permission notice appear in all copies.
     11  *
     12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     19  */
     20 
     21 /*-
     22  * Based on BSD-licensed source modules in the Linux iwlwifi driver,
     23  * which were used as the reference documentation for this implementation.
     24  *
     25  * Driver version we are currently based off of is
     26  * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
     27  *
     28  ***********************************************************************
     29  *
     30  * This file is provided under a dual BSD/GPLv2 license.  When using or
     31  * redistributing this file, you may do so under either license.
     32  *
     33  * GPL LICENSE SUMMARY
     34  *
     35  * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
     36  *
     37  * This program is free software; you can redistribute it and/or modify
     38  * it under the terms of version 2 of the GNU General Public License as
     39  * published by the Free Software Foundation.
     40  *
     41  * This program is distributed in the hope that it will be useful, but
     42  * WITHOUT ANY WARRANTY; without even the implied warranty of
     43  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     44  * General Public License for more details.
     45  *
     46  * You should have received a copy of the GNU General Public License
     47  * along with this program; if not, write to the Free Software
     48  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
     49  * USA
     50  *
     51  * The full GNU General Public License is included in this distribution
     52  * in the file called COPYING.
     53  *
     54  * Contact Information:
     55  *  Intel Linux Wireless <ilw (at) linux.intel.com>
     56  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
     57  *
     58  *
     59  * BSD LICENSE
     60  *
     61  * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
     62  * All rights reserved.
     63  *
     64  * Redistribution and use in source and binary forms, with or without
     65  * modification, are permitted provided that the following conditions
     66  * are met:
     67  *
     68  *  * Redistributions of source code must retain the above copyright
     69  *    notice, this list of conditions and the following disclaimer.
     70  *  * Redistributions in binary form must reproduce the above copyright
     71  *    notice, this list of conditions and the following disclaimer in
     72  *    the documentation and/or other materials provided with the
     73  *    distribution.
     74  *  * Neither the name Intel Corporation nor the names of its
     75  *    contributors may be used to endorse or promote products derived
     76  *    from this software without specific prior written permission.
     77  *
     78  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     79  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     80  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     81  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     82  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     83  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     84  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     85  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     86  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     87  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     88  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     89  */
     90 
     91 /*-
     92  * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini (at) free.fr>
     93  *
     94  * Permission to use, copy, modify, and distribute this software for any
     95  * purpose with or without fee is hereby granted, provided that the above
     96  * copyright notice and this permission notice appear in all copies.
     97  *
     98  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     99  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    100  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    101  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    102  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    103  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    104  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    105  */
    106 
    107 struct iwm_rx_radiotap_header {
    108 	struct ieee80211_radiotap_header wr_ihdr;
    109 	uint64_t	wr_tsft;
    110 	uint8_t		wr_flags;
    111 	uint8_t		wr_rate;
    112 	uint16_t	wr_chan_freq;
    113 	uint16_t	wr_chan_flags;
    114 	int8_t		wr_dbm_antsignal;
    115 	int8_t		wr_dbm_antnoise;
    116 };
    117 
    118 #define IWM_RX_RADIOTAP_PRESENT						\
    119 	((1 << IEEE80211_RADIOTAP_TSFT) |				\
    120 	 (1 << IEEE80211_RADIOTAP_FLAGS) |				\
    121 	 (1 << IEEE80211_RADIOTAP_RATE) |				\
    122 	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
    123 	 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |			\
    124 	 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
    125 
    126 struct iwm_tx_radiotap_header {
    127 	struct ieee80211_radiotap_header wt_ihdr;
    128 	uint8_t		wt_flags;
    129 	uint8_t		wt_rate;
    130 	uint16_t	wt_chan_freq;
    131 	uint16_t	wt_chan_flags;
    132 	uint8_t		wt_hwqueue;
    133 };
    134 
    135 #define IWM_TX_RADIOTAP_PRESENT						\
    136 	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
    137 	 (1 << IEEE80211_RADIOTAP_RATE) |				\
    138 	 (1 << IEEE80211_RADIOTAP_CHANNEL))
    139 
    140 #define IWM_UCODE_SECT_MAX 16
    141 #define IWM_FWDMASEGSZ (192*1024)
    142 #define IWM_FWDMASEGSZ_8000 (320*1024)
    143 
    144 /*
    145  * fw_status is used to determine if we've already parsed the firmware file
    146  *
    147  * In addition to the following, status < 0 ==> -error
    148  */
    149 #define IWM_FW_STATUS_NONE		0
    150 #define IWM_FW_STATUS_INPROGRESS	1
    151 #define IWM_FW_STATUS_DONE		2
    152 
    153 enum iwm_ucode_type {
    154 	IWM_UCODE_TYPE_REGULAR,
    155 	IWM_UCODE_TYPE_INIT,
    156 	IWM_UCODE_TYPE_WOW,
    157 	IWM_UCODE_TYPE_REGULAR_USNIFFER,
    158 	IWM_UCODE_TYPE_MAX
    159 };
    160 
    161 struct iwm_fw_info {
    162 	void *fw_rawdata;
    163 	size_t fw_rawsize;
    164 	int fw_status;
    165 
    166 	struct iwm_fw_sects {
    167 		struct iwm_fw_onesect {
    168 			void *fws_data;
    169 			uint32_t fws_len;
    170 			uint32_t fws_devoff;
    171 
    172 			void *fws_alloc;
    173 			size_t fws_allocsize;
    174 		} fw_sect[IWM_UCODE_SECT_MAX];
    175 		size_t fw_totlen;
    176 		int fw_count;
    177 		int is_dual_cpus;
    178 		uint32_t paging_mem_size;
    179 	} fw_sects[IWM_UCODE_TYPE_MAX];
    180 };
    181 
    182 struct iwm_nvm_data {
    183 	int n_hw_addrs;
    184 	uint8_t hw_addr[ETHER_ADDR_LEN];
    185 
    186 	uint8_t calib_version;
    187 	uint16_t calib_voltage;
    188 
    189 	uint16_t raw_temperature;
    190 	uint16_t kelvin_temperature;
    191 	uint16_t kelvin_voltage;
    192 	uint16_t xtal_calib[2];
    193 
    194 	int sku_cap_band_24GHz_enable;
    195 	int sku_cap_band_52GHz_enable;
    196 	int sku_cap_11n_enable;
    197 	int sku_cap_amt_enable;
    198 	int sku_cap_ipan_enable;
    199 	int sku_cap_mimo_disable;
    200 
    201 	uint8_t radio_cfg_type;
    202 	uint8_t radio_cfg_step;
    203 	uint8_t radio_cfg_dash;
    204 	uint8_t radio_cfg_pnum;
    205 	uint8_t valid_tx_ant, valid_rx_ant;
    206 
    207 	uint16_t nvm_version;
    208 	uint8_t max_tx_pwr_half_dbm;
    209 
    210 	bool lar_enabled;
    211 };
    212 
    213 /* max bufs per tfd the driver will use */
    214 #define IWM_MAX_CMD_TBS_PER_TFD 2
    215 
    216 struct iwm_rx_packet;
    217 struct iwm_host_cmd {
    218 	const void *data[IWM_MAX_CMD_TBS_PER_TFD];
    219 	struct iwm_rx_packet *resp_pkt;
    220 	unsigned long _rx_page_addr;
    221 	uint32_t _rx_page_order;
    222 	int handler_status;
    223 
    224 	uint32_t flags;
    225 	uint16_t len[IWM_MAX_CMD_TBS_PER_TFD];
    226 	uint8_t dataflags[IWM_MAX_CMD_TBS_PER_TFD];
    227 	uint32_t id;
    228 };
    229 
    230 /*
    231  * DMA glue is from iwn
    232  */
    233 
    234 struct iwm_dma_info {
    235 	bus_dma_tag_t		tag;
    236 	bus_dmamap_t		map;
    237 	bus_dma_segment_t	seg;
    238 	bus_addr_t		paddr;
    239 	void 			*vaddr;
    240 	bus_size_t		size;
    241 };
    242 
    243 /**
    244  * struct iwm_fw_paging
    245  * @fw_paging_block: dma memory info
    246  * @fw_paging_size: page size
    247  */
    248 struct iwm_fw_paging {
    249 	struct iwm_dma_info fw_paging_block;
    250 	uint32_t fw_paging_size;
    251 };
    252 
    253 #define IWM_TX_RING_COUNT	256
    254 #define IWM_TX_RING_LOMARK	192
    255 #define IWM_TX_RING_HIMARK	224
    256 
    257 struct iwm_tx_data {
    258 	bus_dmamap_t	map;
    259 	bus_addr_t	cmd_paddr;
    260 	bus_addr_t	scratch_paddr;
    261 	struct mbuf	*m;
    262 	struct iwm_node *in;
    263 	int done;
    264 };
    265 
    266 struct iwm_tx_ring {
    267 	struct iwm_dma_info	desc_dma;
    268 	struct iwm_dma_info	cmd_dma;
    269 	struct iwm_tfd		*desc;
    270 	struct iwm_device_cmd	*cmd;
    271 	struct iwm_tx_data	data[IWM_TX_RING_COUNT];
    272 	int			qid;
    273 	int			queued;
    274 	int			cur;
    275 };
    276 
    277 #define IWM_RX_RING_COUNT	256
    278 #define IWM_RBUF_COUNT		(IWM_RX_RING_COUNT + 32)
    279 /* Linux driver optionally uses 8k buffer */
    280 #define IWM_RBUF_SIZE		4096
    281 
    282 struct iwm_rx_data {
    283 	struct mbuf	*m;
    284 	bus_dmamap_t	map;
    285 };
    286 
    287 struct iwm_rx_ring {
    288 	struct iwm_dma_info	desc_dma;
    289 	struct iwm_dma_info	stat_dma;
    290 	struct iwm_dma_info	buf_dma;
    291 	uint32_t		*desc;
    292 	struct iwm_rb_status	*stat;
    293 	struct iwm_rx_data	data[IWM_RX_RING_COUNT];
    294 	int			cur;
    295 };
    296 
    297 #define IWM_FLAG_USE_ICT	__BIT(0)
    298 #define IWM_FLAG_HW_INITED	__BIT(1)
    299 #define IWM_FLAG_STOPPED	__BIT(2)
    300 #define IWM_FLAG_RFKILL		__BIT(3)
    301 #define IWM_FLAG_SCANNING	__BIT(4)
    302 #define IWM_FLAG_ATTACHED	__BIT(5)
    303 #define IWM_FLAG_FW_LOADED	__BIT(6)
    304 
    305 struct iwm_ucode_status {
    306 	uint32_t uc_error_event_table;
    307 	uint32_t uc_umac_error_event_table;
    308 	uint32_t uc_log_event_table;
    309 
    310 	int uc_ok;
    311 	int uc_intr;
    312 };
    313 
    314 /* sc_wantresp */
    315 #define IWM_CMD_RESP_IDLE	-1
    316 
    317 #define IWM_CMD_RESP_MAX PAGE_SIZE
    318 
    319 /* lower blocks contain EEPROM image and calibration data */
    320 #define IWM_OTP_LOW_IMAGE_SIZE_FAMILY_7000 	16384
    321 #define IWM_OTP_LOW_IMAGE_SIZE_FAMILY_8000	32768
    322 
    323 #define IWM_TE_SESSION_PROTECTION_MAX_TIME_MS 1000
    324 #define IWM_TE_SESSION_PROTECTION_MIN_TIME_MS 400
    325 
    326 enum IWM_CMD_MODE {
    327 	IWM_CMD_ASYNC		= (1 << 0),
    328 	IWM_CMD_WANT_SKB	= (1 << 1),
    329 	IWM_CMD_SEND_IN_RFKILL	= (1 << 2),
    330 };
    331 enum iwm_hcmd_dataflag {
    332 	IWM_HCMD_DFL_NOCOPY     = (1 << 0),
    333 	IWM_HCMD_DFL_DUP        = (1 << 1),
    334 };
    335 
    336 #define IWM_NUM_PAPD_CH_GROUPS	9
    337 #define IWM_NUM_TXP_CH_GROUPS	9
    338 
    339 struct iwm_phy_db_entry {
    340 	uint16_t size;
    341 	uint8_t *data;
    342 };
    343 
    344 struct iwm_phy_db {
    345 	struct iwm_phy_db_entry	cfg;
    346 	struct iwm_phy_db_entry	calib_nch;
    347 	struct iwm_phy_db_entry	calib_ch_group_papd[IWM_NUM_PAPD_CH_GROUPS];
    348 	struct iwm_phy_db_entry	calib_ch_group_txp[IWM_NUM_TXP_CH_GROUPS];
    349 };
    350 
    351 struct iwm_phy_ctxt {
    352 	uint16_t id;
    353 	uint16_t color;
    354 	uint32_t ref;
    355 	struct ieee80211_channel *channel;
    356 };
    357 
    358 struct iwm_bf_data {
    359 	int bf_enabled;		/* filtering	*/
    360 	int ba_enabled;		/* abort	*/
    361 	int ave_beacon_signal;
    362 	int last_cqm_event;
    363 };
    364 
    365 struct iwm_softc {
    366 	device_t sc_dev;
    367 	struct ethercom sc_ec;
    368 	struct ieee80211com sc_ic;
    369 
    370 	int (*sc_newstate)(struct ieee80211com *, enum ieee80211_state, int);
    371 
    372 	struct ieee80211_amrr sc_amrr;
    373 	struct callout sc_calib_to;
    374 	struct callout sc_led_blink_to;
    375 
    376 	bus_space_tag_t sc_st;
    377 	bus_space_handle_t sc_sh;
    378 	pci_intr_handle_t *sc_pihp;
    379 
    380 	bus_size_t sc_sz;
    381 	bus_dma_tag_t sc_dmat;
    382 	pci_chipset_tag_t sc_pct;
    383 	pcitag_t sc_pcitag;
    384 	pcireg_t sc_pciid;
    385 	const void *sc_ih;
    386 	void *sc_soft_ih;
    387 
    388 	/* TX scheduler rings. */
    389 	struct iwm_dma_info		sched_dma;
    390 	uint32_t			sched_base;
    391 
    392 	/* TX/RX rings. */
    393 	struct iwm_tx_ring txq[IWM_MAX_QUEUES];
    394 	struct iwm_rx_ring rxq;
    395 	int qfullmsk;
    396 
    397 	int sc_sf_state;
    398 
    399 	/* ICT table. */
    400 	struct iwm_dma_info	ict_dma;
    401 	int			ict_cur;
    402 
    403 	int sc_hw_rev;
    404 #define IWM_SILICON_A_STEP	0
    405 #define IWM_SILICON_B_STEP	1
    406 #define IWM_SILICON_C_STEP	2
    407 #define IWM_SILICON_D_STEP	3
    408 	int sc_hw_id;
    409 	int sc_device_family;
    410 #define IWM_DEVICE_FAMILY_7000	1
    411 #define IWM_DEVICE_FAMILY_8000	2
    412 
    413 	struct iwm_dma_info kw_dma;
    414 	struct iwm_dma_info fw_dma;
    415 
    416 	int sc_fw_chunk_done;
    417 	int sc_init_complete;
    418 
    419 	struct iwm_ucode_status sc_uc;
    420 	enum iwm_ucode_type sc_uc_current;
    421 	char sc_fwver[32];
    422 
    423 	int sc_capaflags;
    424 	int sc_capa_max_probe_len;
    425 	int sc_capa_n_scan_channels;
    426 	uint8_t sc_ucode_api[howmany(IWM_NUM_UCODE_TLV_API, NBBY)];
    427 	uint8_t sc_enabled_capa[howmany(IWM_NUM_UCODE_TLV_CAPA, NBBY)];
    428 	char sc_fw_mcc[3];
    429 
    430 	int sc_intmask;
    431 	int sc_flags;
    432 
    433 	/*
    434 	 * So why do we need a separate stopped flag and a generation?
    435 	 * the former protects the device from issueing commands when it's
    436 	 * stopped (duh).  The latter protects against race from a very
    437 	 * fast stop/unstop cycle where threads waiting for responses do
    438 	 * not have a chance to run in between.  Notably: we want to stop
    439 	 * the device from interrupt context when it craps out, so we
    440 	 * don't have the luxury of waiting for quiescense.
    441 	 */
    442 	int sc_generation;
    443 
    444 	int sc_cap_off; /* PCIe caps */
    445 
    446 	const char *sc_fwname;
    447 	bus_size_t sc_fwdmasegsz;
    448 	struct iwm_fw_info sc_fw;
    449 	int sc_fw_phy_config;
    450 	struct iwm_tlv_calib_ctrl sc_default_calib[IWM_UCODE_TYPE_MAX];
    451 
    452 	struct iwm_nvm_data sc_nvm;
    453 	struct iwm_phy_db sc_phy_db;
    454 
    455 	struct iwm_bf_data sc_bf;
    456 
    457 	int sc_tx_timer;
    458 	int sc_rx_ba_sessions;
    459 
    460 	int sc_scan_last_antenna;
    461 	int sc_mgmt_last_antenna;
    462 
    463 	int sc_fixed_ridx;
    464 
    465 	int sc_staid;
    466 	int sc_nodecolor;
    467 
    468 	uint8_t sc_cmd_resp[IWM_CMD_RESP_MAX];
    469 	int sc_wantresp;
    470 
    471 	struct workqueue *sc_nswq;
    472 
    473 	struct iwm_rx_phy_info sc_last_phy_info;
    474 	int sc_ampdu_ref;
    475 
    476 	/* phy contexts.  we only use the first one */
    477 	struct iwm_phy_ctxt sc_phyctxt[IWM_NUM_PHY_CTX];
    478 
    479 	struct iwm_notif_statistics sc_stats;
    480 	int sc_noise;
    481 
    482 	int sc_cmd_hold_nic_awake;
    483 
    484 	/* device needs host interrupt operation mode set */
    485 	int host_interrupt_operation_mode;
    486 	/* should the MAC access REQ be asserted when a command is in flight.
    487 	 * This is due to a HW bug in 7260, 3160 and 7265. */
    488 	int apmg_wake_up_wa;
    489 
    490 	/*
    491 	 * Paging parameters - All of the parameters should be set by the
    492 	 * opmode when paging is enabled
    493 	 */
    494 	struct iwm_fw_paging fw_paging_db[IWM_NUM_OF_FW_PAGING_BLOCKS];
    495 	uint16_t num_of_paging_blk;
    496 	uint16_t num_of_pages_in_last_blk;
    497 
    498 	struct sysctllog *sc_clog;
    499 
    500 	struct bpf_if *sc_drvbpf;
    501 
    502 	kmutex_t	sc_media_mtx;	/* XXX */
    503 
    504 	union {
    505 		struct iwm_rx_radiotap_header th;
    506 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    507 	} sc_rxtapu;
    508 #define sc_rxtap	sc_rxtapu.th
    509 	int			sc_rxtap_len;
    510 
    511 	union {
    512 		struct iwm_tx_radiotap_header th;
    513 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    514 	} sc_txtapu;
    515 #define sc_txtap	sc_txtapu.th
    516 	int			sc_txtap_len;
    517 };
    518 
    519 struct iwm_node {
    520 	struct ieee80211_node in_ni;
    521 	struct iwm_phy_ctxt *in_phyctxt;
    522 
    523 	uint16_t in_id;
    524 	uint16_t in_color;
    525 
    526 	struct iwm_lq_cmd in_lq;
    527 	struct ieee80211_amrr_node in_amn;
    528 };
    529 #define IWM_STATION_ID 0
    530 #define IWM_AUX_STA_ID 1
    531 
    532 #define IWM_ICT_SIZE		4096
    533 #define IWM_ICT_COUNT		(IWM_ICT_SIZE / sizeof (uint32_t))
    534 #define IWM_ICT_PADDR_SHIFT	12
    535