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if_iwmvar.h revision 1.3
      1 /*	$NetBSD: if_iwmvar.h,v 1.3 2015/02/13 18:57:47 nonaka Exp $	*/
      2 /*	OpenBSD: if_iwmvar.h,v 1.3 2015/02/07 07:10:44 phessler 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 } __packed;
    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 } __packed;
    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 6
    141 #define IWM_FWDMASEGSZ (192*1024)
    142 /* sanity check value */
    143 #define IWM_FWMAXSIZE (2*1024*1024)
    144 
    145 /*
    146  * fw_status is used to determine if we've already parsed the firmware file
    147  *
    148  * In addition to the following, status < 0 ==> -error
    149  */
    150 #define IWM_FW_STATUS_NONE		0
    151 #define IWM_FW_STATUS_INPROGRESS	1
    152 #define IWM_FW_STATUS_DONE		2
    153 
    154 enum iwm_ucode_type {
    155 	IWM_UCODE_TYPE_INIT,
    156 	IWM_UCODE_TYPE_REGULAR,
    157 	IWM_UCODE_TYPE_WOW,
    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 	} fw_sects[IWM_UCODE_TYPE_MAX];
    178 };
    179 
    180 struct iwm_nvm_data {
    181 	int n_hw_addrs;
    182 	uint8_t hw_addr[ETHER_ADDR_LEN];
    183 
    184 	uint8_t calib_version;
    185 	uint16_t calib_voltage;
    186 
    187 	uint16_t raw_temperature;
    188 	uint16_t kelvin_temperature;
    189 	uint16_t kelvin_voltage;
    190 	uint16_t xtal_calib[2];
    191 
    192 	int sku_cap_band_24GHz_enable;
    193 	int sku_cap_band_52GHz_enable;
    194 	int sku_cap_11n_enable;
    195 	int sku_cap_amt_enable;
    196 	int sku_cap_ipan_enable;
    197 
    198 	uint8_t radio_cfg_type;
    199 	uint8_t radio_cfg_step;
    200 	uint8_t radio_cfg_dash;
    201 	uint8_t radio_cfg_pnum;
    202 	uint8_t valid_tx_ant, valid_rx_ant;
    203 
    204 	uint16_t nvm_version;
    205 	uint8_t max_tx_pwr_half_dbm;
    206 };
    207 
    208 /* max bufs per tfd the driver will use */
    209 #define IWM_MAX_CMD_TBS_PER_TFD 2
    210 
    211 struct iwm_rx_packet;
    212 struct iwm_host_cmd {
    213 	const void *data[IWM_MAX_CMD_TBS_PER_TFD];
    214 	struct iwm_rx_packet *resp_pkt;
    215 	unsigned long _rx_page_addr;
    216 	uint32_t _rx_page_order;
    217 	int handler_status;
    218 
    219 	uint32_t flags;
    220 	uint16_t len[IWM_MAX_CMD_TBS_PER_TFD];
    221 	uint8_t dataflags[IWM_MAX_CMD_TBS_PER_TFD];
    222 	uint8_t id;
    223 };
    224 
    225 /*
    226  * DMA glue is from iwn
    227  */
    228 
    229 struct iwm_dma_info {
    230 	bus_dma_tag_t		tag;
    231 	bus_dmamap_t		map;
    232 	bus_dma_segment_t	seg;
    233 	bus_addr_t		paddr;
    234 	void 			*vaddr;
    235 	bus_size_t		size;
    236 };
    237 
    238 #define IWM_TX_RING_COUNT	256
    239 #define IWM_TX_RING_LOMARK	192
    240 #define IWM_TX_RING_HIMARK	224
    241 
    242 struct iwm_tx_data {
    243 	bus_dmamap_t	map;
    244 	bus_addr_t	cmd_paddr;
    245 	bus_addr_t	scratch_paddr;
    246 	struct mbuf	*m;
    247 	struct iwm_node *in;
    248 	int done;
    249 };
    250 
    251 struct iwm_tx_ring {
    252 	struct iwm_dma_info	desc_dma;
    253 	struct iwm_dma_info	cmd_dma;
    254 	struct iwm_tfd		*desc;
    255 	struct iwm_device_cmd	*cmd;
    256 	struct iwm_tx_data	data[IWM_TX_RING_COUNT];
    257 	int			qid;
    258 	int			queued;
    259 	int			cur;
    260 };
    261 
    262 #define IWM_RX_RING_COUNT	256
    263 #define IWM_RBUF_COUNT		(IWM_RX_RING_COUNT + 32)
    264 /* Linux driver optionally uses 8k buffer */
    265 #define IWM_RBUF_SIZE		4096
    266 
    267 struct iwm_softc;
    268 struct iwm_rbuf {
    269 	struct iwm_softc	*sc;
    270 	void			*vaddr;
    271 	bus_addr_t		paddr;
    272 };
    273 
    274 struct iwm_rx_data {
    275 	struct mbuf	*m;
    276 	bus_dmamap_t	map;
    277 	int		wantresp;
    278 };
    279 
    280 struct iwm_rx_ring {
    281 	struct iwm_dma_info	desc_dma;
    282 	struct iwm_dma_info	stat_dma;
    283 	struct iwm_dma_info	buf_dma;
    284 	uint32_t		*desc;
    285 	struct iwm_rb_status	*stat;
    286 	struct iwm_rx_data	data[IWM_RX_RING_COUNT];
    287 	int			cur;
    288 };
    289 
    290 #define IWM_FLAG_USE_ICT	0x01
    291 #define IWM_FLAG_HW_INITED	0x02
    292 #define IWM_FLAG_STOPPED	0x04
    293 #define IWM_FLAG_RFKILL		0x08
    294 #define IWM_FLAG_BUSY		0x10
    295 #define IWM_FLAG_ATTACHED	0x20
    296 
    297 struct iwm_ucode_status {
    298 	uint32_t uc_error_event_table;
    299 	uint32_t uc_log_event_table;
    300 
    301 	int uc_ok;
    302 	int uc_intr;
    303 };
    304 
    305 #define IWM_CMD_RESP_MAX PAGE_SIZE
    306 
    307 #define IWM_OTP_LOW_IMAGE_SIZE 2048
    308 
    309 #define IWM_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS 500
    310 #define IWM_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS 400
    311 
    312 /*
    313  * Command headers are in iwl-trans.h, which is full of all
    314  * kinds of other junk, so we just replicate the structures here.
    315  * First the software bits:
    316  */
    317 enum IWM_CMD_MODE {
    318 	IWM_CMD_SYNC		= 0,
    319 	IWM_CMD_ASYNC		= (1 << 0),
    320 	IWM_CMD_WANT_SKB	= (1 << 1),
    321 	IWM_CMD_SEND_IN_RFKILL	= (1 << 2),
    322 };
    323 enum iwm_hcmd_dataflag {
    324         IWM_HCMD_DFL_NOCOPY     = (1 << 0),
    325         IWM_HCMD_DFL_DUP        = (1 << 1),
    326 };
    327 
    328 /*
    329  * iwlwifi/iwl-phy-db
    330  */
    331 
    332 #define IWM_NUM_PAPD_CH_GROUPS	4
    333 #define IWM_NUM_TXP_CH_GROUPS	9
    334 
    335 struct iwm_phy_db_entry {
    336 	uint16_t size;
    337 	uint8_t *data;
    338 };
    339 
    340 struct iwm_phy_db {
    341 	struct iwm_phy_db_entry	cfg;
    342 	struct iwm_phy_db_entry	calib_nch;
    343 	struct iwm_phy_db_entry	calib_ch_group_papd[IWM_NUM_PAPD_CH_GROUPS];
    344 	struct iwm_phy_db_entry	calib_ch_group_txp[IWM_NUM_TXP_CH_GROUPS];
    345 };
    346 
    347 struct iwm_int_sta {
    348 	uint32_t sta_id;
    349 	uint32_t tfd_queue_msk;
    350 };
    351 
    352 struct iwm_mvm_phy_ctxt {
    353 	uint16_t id;
    354 	uint16_t color;
    355 	uint32_t ref;
    356 	struct ieee80211_channel *channel;
    357 };
    358 
    359 struct iwm_bf_data {
    360 	int bf_enabled;		/* filtering	*/
    361 	int ba_enabled;		/* abort	*/
    362 	int ave_beacon_signal;
    363 	int last_cqm_event;
    364 };
    365 
    366 struct iwm_softc {
    367 	device_t sc_dev;
    368 	struct ethercom sc_ec;
    369 	struct ieee80211com sc_ic;
    370 
    371 	int (*sc_newstate)(struct ieee80211com *, enum ieee80211_state, int);
    372 	int sc_newstate_pending;
    373 
    374 	struct ieee80211_amrr sc_amrr;
    375 	struct callout sc_calib_to;
    376 
    377 	bus_space_tag_t sc_st;
    378 	bus_space_handle_t sc_sh;
    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 
    387 	/* TX scheduler rings. */
    388 	struct iwm_dma_info		sched_dma;
    389 	uint32_t			sched_base;
    390 
    391         /* TX/RX rings. */
    392 	struct iwm_tx_ring txq[IWM_MVM_MAX_QUEUES];
    393 	struct iwm_rx_ring rxq;
    394 	int qfullmsk;
    395 
    396 	int sc_sf_state;
    397 
    398         /* ICT table. */
    399 	struct iwm_dma_info	ict_dma;
    400 	int			ict_cur;
    401 
    402 	int sc_hw_rev;
    403 	int sc_hw_id;
    404 
    405 	struct iwm_dma_info kw_dma;
    406 	struct iwm_dma_info fw_dma;
    407 
    408 	int sc_fw_chunk_done;
    409 	int sc_init_complete;
    410 
    411 	struct iwm_ucode_status sc_uc;
    412 	enum iwm_ucode_type sc_uc_current;
    413 	int sc_fwver;
    414 
    415 	int sc_capaflags;
    416 	int sc_capa_max_probe_len;
    417 
    418 	int sc_intmask;
    419 	int sc_flags;
    420 
    421 	/*
    422 	 * So why do we need a separate stopped flag and a generation?
    423 	 * the former protects the device from issueing commands when it's
    424 	 * stopped (duh).  The latter protects against race from a very
    425 	 * fast stop/unstop cycle where threads waiting for responses do
    426 	 * not have a chance to run in between.  Notably: we want to stop
    427 	 * the device from interrupt context when it craps out, so we
    428 	 * don't have the luxury of waiting for quiescense.
    429 	 */
    430 	int sc_generation;
    431 
    432 	int sc_cap_off; /* PCIe caps */
    433 
    434 	const char *sc_fwname;
    435 	bus_size_t sc_fwdmasegsz;
    436 	struct iwm_fw_info sc_fw;
    437 	int sc_fw_phy_config;
    438 	struct iwm_tlv_calib_ctrl sc_default_calib[IWM_UCODE_TYPE_MAX];
    439 
    440 	struct iwm_nvm_data sc_nvm;
    441 	struct iwm_phy_db sc_phy_db;
    442 
    443 	struct iwm_bf_data sc_bf;
    444 
    445 	int sc_tx_timer;
    446 
    447 	struct iwm_scan_cmd *sc_scan_cmd;
    448 	size_t sc_scan_cmd_len;
    449 	int sc_scan_last_antenna;
    450 	int sc_scanband;
    451 
    452 	int sc_auth_prot;
    453 
    454 	int sc_fixed_ridx;
    455 
    456 	int sc_staid;
    457 	int sc_nodecolor;
    458 
    459 	uint8_t sc_cmd_resp[IWM_CMD_RESP_MAX];
    460 	int sc_wantresp;
    461 
    462 	struct workqueue *sc_nswq, *sc_eswq;
    463 	struct work sc_eswk;
    464 
    465 	struct iwm_rx_phy_info sc_last_phy_info;
    466 	int sc_ampdu_ref;
    467 
    468 	struct iwm_int_sta sc_aux_sta;
    469 
    470 	/* phy contexts.  we only use the first one */
    471 	struct iwm_mvm_phy_ctxt sc_phyctxt[IWM_NUM_PHY_CTX];
    472 
    473 	struct iwm_notif_statistics sc_stats;
    474 	int sc_noise;
    475 
    476 	struct bpf_if *		sc_drvbpf;
    477 
    478 	union {
    479 		struct iwm_rx_radiotap_header th;
    480 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    481 	} sc_rxtapu;
    482 #define sc_rxtap	sc_rxtapu.th
    483 	int			sc_rxtap_len;
    484 
    485 	union {
    486 		struct iwm_tx_radiotap_header th;
    487 		uint8_t	pad[IEEE80211_RADIOTAP_HDRLEN];
    488 	} sc_txtapu;
    489 #define sc_txtap	sc_txtapu.th
    490 	int			sc_txtap_len;
    491 };
    492 
    493 struct iwm_node {
    494 	struct ieee80211_node in_ni;
    495 	struct iwm_mvm_phy_ctxt *in_phyctxt;
    496 
    497 	uint16_t in_id;
    498 	uint16_t in_color;
    499 	int in_tsfid;
    500 
    501 	/* status "bits" */
    502 	int in_assoc;
    503 
    504 	struct iwm_lq_cmd in_lq;
    505 	struct ieee80211_amrr_node in_amn;
    506 
    507 	uint8_t in_ridx[IEEE80211_RATE_MAXSIZE];
    508 };
    509 #define IWM_STATION_ID 0
    510 
    511 #define IWM_ICT_SIZE		4096
    512 #define IWM_ICT_COUNT		(IWM_ICT_SIZE / sizeof (uint32_t))
    513 #define IWM_ICT_PADDR_SHIFT	12
    514