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      1 /*
      2  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
      3  * Use is subject to license terms.
      4  */
      5 
      6 /*
      7  * Copyright (c) 2009, Intel Corporation
      8  * All rights reserved.
      9  */
     10 
     11 /*
     12  * Copyright (c) 2006
     13  * Copyright (c) 2007
     14  *	Damien Bergamini <damien.bergamini (at) free.fr>
     15  *
     16  * Permission to use, copy, modify, and distribute this software for any
     17  * purpose with or without fee is hereby granted, provided that the above
     18  * copyright notice and this permission notice appear in all copies.
     19  *
     20  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     21  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     22  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     23  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     24  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     25  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     26  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     27  */
     28 
     29 /*
     30  * Intel(R) WiFi Link 5100/5300 Driver
     31  */
     32 
     33 #include <sys/types.h>
     34 #include <sys/byteorder.h>
     35 #include <sys/conf.h>
     36 #include <sys/cmn_err.h>
     37 #include <sys/stat.h>
     38 #include <sys/ddi.h>
     39 #include <sys/sunddi.h>
     40 #include <sys/strsubr.h>
     41 #include <sys/ethernet.h>
     42 #include <inet/common.h>
     43 #include <inet/nd.h>
     44 #include <inet/mi.h>
     45 #include <sys/note.h>
     46 #include <sys/stream.h>
     47 #include <sys/strsun.h>
     48 #include <sys/modctl.h>
     49 #include <sys/devops.h>
     50 #include <sys/dlpi.h>
     51 #include <sys/mac_provider.h>
     52 #include <sys/mac_wifi.h>
     53 #include <sys/net80211.h>
     54 #include <sys/net80211_proto.h>
     55 #include <sys/net80211_ht.h>
     56 #include <sys/varargs.h>
     57 #include <sys/policy.h>
     58 #include <sys/pci.h>
     59 
     60 #include "iwh_calibration.h"
     61 #include "iwh_hw.h"
     62 #include "iwh_eeprom.h"
     63 #include "iwh_var.h"
     64 #include <inet/wifi_ioctl.h>
     65 
     66 #ifdef DEBUG
     67 #define	IWH_DEBUG_80211		(1 << 0)
     68 #define	IWH_DEBUG_CMD		(1 << 1)
     69 #define	IWH_DEBUG_DMA		(1 << 2)
     70 #define	IWH_DEBUG_EEPROM	(1 << 3)
     71 #define	IWH_DEBUG_FW		(1 << 4)
     72 #define	IWH_DEBUG_HW		(1 << 5)
     73 #define	IWH_DEBUG_INTR		(1 << 6)
     74 #define	IWH_DEBUG_MRR		(1 << 7)
     75 #define	IWH_DEBUG_PIO		(1 << 8)
     76 #define	IWH_DEBUG_RX		(1 << 9)
     77 #define	IWH_DEBUG_SCAN		(1 << 10)
     78 #define	IWH_DEBUG_TX		(1 << 11)
     79 #define	IWH_DEBUG_RATECTL	(1 << 12)
     80 #define	IWH_DEBUG_RADIO		(1 << 13)
     81 #define	IWH_DEBUG_RESUME	(1 << 14)
     82 #define	IWH_DEBUG_CALIBRATION	(1 << 15)
     83 #define	IWH_DEBUG_BA		(1 << 16)
     84 #define	IWH_DEBUG_RXON		(1 << 17)
     85 #define	IWH_DEBUG_HWRATE	(1 << 18)
     86 #define	IWH_DEBUG_HTRATE	(1 << 19)
     87 #define	IWH_DEBUG_QOS		(1 << 20)
     88 /*
     89  * if want to see debug message of a given section,
     90  * please set this flag to one of above values
     91  */
     92 uint32_t iwh_dbg_flags = 0;
     93 #define	IWH_DBG(x) \
     94 	iwh_dbg x
     95 #else
     96 #define	IWH_DBG(x)
     97 #endif
     98 
     99 #define	MS(v, f)    (((v) & f) >> f##_S)
    100 
    101 static void	*iwh_soft_state_p = NULL;
    102 
    103 /*
    104  * ucode will be compiled into driver image
    105  */
    106 static uint8_t iwh_fw_5000_bin[] = {
    107 #include "fw-iw/fw_5000/iwh_5000.ucode"
    108 };
    109 
    110 static uint8_t iwh_fw_5150_bin[] = {
    111 #include "fw-iw/fw_5150/iwh_5150.ucode"
    112 };
    113 
    114 /*
    115  * DMA attributes for a shared page
    116  */
    117 static ddi_dma_attr_t sh_dma_attr = {
    118 	DMA_ATTR_V0,	/* version of this structure */
    119 	0,		/* lowest usable address */
    120 	0xffffffffU,	/* highest usable address */
    121 	0xffffffffU,	/* maximum DMAable byte count */
    122 	0x1000,		/* alignment in bytes */
    123 	0x1000,		/* burst sizes (any?) */
    124 	1,		/* minimum transfer */
    125 	0xffffffffU,	/* maximum transfer */
    126 	0xffffffffU,	/* maximum segment length */
    127 	1,		/* maximum number of segments */
    128 	1,		/* granularity */
    129 	0,		/* flags (reserved) */
    130 };
    131 
    132 /*
    133  * DMA attributes for a keep warm DRAM descriptor
    134  */
    135 static ddi_dma_attr_t kw_dma_attr = {
    136 	DMA_ATTR_V0,	/* version of this structure */
    137 	0,		/* lowest usable address */
    138 	0xffffffffU,	/* highest usable address */
    139 	0xffffffffU,	/* maximum DMAable byte count */
    140 	0x1000,		/* alignment in bytes */
    141 	0x1000,		/* burst sizes (any?) */
    142 	1,		/* minimum transfer */
    143 	0xffffffffU,	/* maximum transfer */
    144 	0xffffffffU,	/* maximum segment length */
    145 	1,		/* maximum number of segments */
    146 	1,		/* granularity */
    147 	0,		/* flags (reserved) */
    148 };
    149 
    150 /*
    151  * DMA attributes for a ring descriptor
    152  */
    153 static ddi_dma_attr_t ring_desc_dma_attr = {
    154 	DMA_ATTR_V0,	/* version of this structure */
    155 	0,		/* lowest usable address */
    156 	0xffffffffU,	/* highest usable address */
    157 	0xffffffffU,	/* maximum DMAable byte count */
    158 	0x100,		/* alignment in bytes */
    159 	0x100,		/* burst sizes (any?) */
    160 	1,		/* minimum transfer */
    161 	0xffffffffU,	/* maximum transfer */
    162 	0xffffffffU,	/* maximum segment length */
    163 	1,		/* maximum number of segments */
    164 	1,		/* granularity */
    165 	0,		/* flags (reserved) */
    166 };
    167 
    168 /*
    169  * DMA attributes for a cmd
    170  */
    171 static ddi_dma_attr_t cmd_dma_attr = {
    172 	DMA_ATTR_V0,	/* version of this structure */
    173 	0,		/* lowest usable address */
    174 	0xffffffffU,	/* highest usable address */
    175 	0xffffffffU,	/* maximum DMAable byte count */
    176 	4,		/* alignment in bytes */
    177 	0x100,		/* burst sizes (any?) */
    178 	1,		/* minimum transfer */
    179 	0xffffffffU,	/* maximum transfer */
    180 	0xffffffffU,	/* maximum segment length */
    181 	1,		/* maximum number of segments */
    182 	1,		/* granularity */
    183 	0,		/* flags (reserved) */
    184 };
    185 
    186 /*
    187  * DMA attributes for a rx buffer
    188  */
    189 static ddi_dma_attr_t rx_buffer_dma_attr = {
    190 	DMA_ATTR_V0,	/* version of this structure */
    191 	0,		/* lowest usable address */
    192 	0xffffffffU,	/* highest usable address */
    193 	0xffffffffU,	/* maximum DMAable byte count */
    194 	0x100,		/* alignment in bytes */
    195 	0x100,		/* burst sizes (any?) */
    196 	1,		/* minimum transfer */
    197 	0xffffffffU,	/* maximum transfer */
    198 	0xffffffffU,	/* maximum segment length */
    199 	1,		/* maximum number of segments */
    200 	1,		/* granularity */
    201 	0,		/* flags (reserved) */
    202 };
    203 
    204 /*
    205  * DMA attributes for a tx buffer.
    206  * the maximum number of segments is 4 for the hardware.
    207  * now all the wifi drivers put the whole frame in a single
    208  * descriptor, so we define the maximum  number of segments 1,
    209  * just the same as the rx_buffer. we consider leverage the HW
    210  * ability in the future, that is why we don't define rx and tx
    211  * buffer_dma_attr as the same.
    212  */
    213 static ddi_dma_attr_t tx_buffer_dma_attr = {
    214 	DMA_ATTR_V0,	/* version of this structure */
    215 	0,		/* lowest usable address */
    216 	0xffffffffU,	/* highest usable address */
    217 	0xffffffffU,	/* maximum DMAable byte count */
    218 	4,		/* alignment in bytes */
    219 	0x100,		/* burst sizes (any?) */
    220 	1,		/* minimum transfer */
    221 	0xffffffffU,	/* maximum transfer */
    222 	0xffffffffU,	/* maximum segment length */
    223 	1,		/* maximum number of segments */
    224 	1,		/* granularity */
    225 	0,		/* flags (reserved) */
    226 };
    227 
    228 /*
    229  * DMA attributes for text and data part in the firmware
    230  */
    231 static ddi_dma_attr_t fw_dma_attr = {
    232 	DMA_ATTR_V0,	/* version of this structure */
    233 	0,		/* lowest usable address */
    234 	0xffffffffU,	/* highest usable address */
    235 	0x7fffffff,	/* maximum DMAable byte count */
    236 	0x10,		/* alignment in bytes */
    237 	0x100,		/* burst sizes (any?) */
    238 	1,		/* minimum transfer */
    239 	0xffffffffU,	/* maximum transfer */
    240 	0xffffffffU,	/* maximum segment length */
    241 	1,		/* maximum number of segments */
    242 	1,		/* granularity */
    243 	0,		/* flags (reserved) */
    244 };
    245 
    246 /*
    247  * regs access attributes
    248  */
    249 static ddi_device_acc_attr_t iwh_reg_accattr = {
    250 	DDI_DEVICE_ATTR_V0,
    251 	DDI_STRUCTURE_LE_ACC,
    252 	DDI_STRICTORDER_ACC,
    253 	DDI_DEFAULT_ACC
    254 };
    255 
    256 /*
    257  * DMA access attributes for descriptor
    258  */
    259 static ddi_device_acc_attr_t iwh_dma_descattr = {
    260 	DDI_DEVICE_ATTR_V0,
    261 	DDI_STRUCTURE_LE_ACC,
    262 	DDI_STRICTORDER_ACC,
    263 	DDI_DEFAULT_ACC
    264 };
    265 
    266 /*
    267  * DMA access attributes
    268  */
    269 static ddi_device_acc_attr_t iwh_dma_accattr = {
    270 	DDI_DEVICE_ATTR_V0,
    271 	DDI_NEVERSWAP_ACC,
    272 	DDI_STRICTORDER_ACC,
    273 	DDI_DEFAULT_ACC
    274 };
    275 
    276 static int	iwh_ring_init(iwh_sc_t *);
    277 static void	iwh_ring_free(iwh_sc_t *);
    278 static int	iwh_alloc_shared(iwh_sc_t *);
    279 static void	iwh_free_shared(iwh_sc_t *);
    280 static int	iwh_alloc_kw(iwh_sc_t *);
    281 static void	iwh_free_kw(iwh_sc_t *);
    282 static int	iwh_alloc_fw_dma(iwh_sc_t *);
    283 static void	iwh_free_fw_dma(iwh_sc_t *);
    284 static int	iwh_alloc_rx_ring(iwh_sc_t *);
    285 static void	iwh_reset_rx_ring(iwh_sc_t *);
    286 static void	iwh_free_rx_ring(iwh_sc_t *);
    287 static int	iwh_alloc_tx_ring(iwh_sc_t *, iwh_tx_ring_t *,
    288     int, int);
    289 static void	iwh_reset_tx_ring(iwh_sc_t *, iwh_tx_ring_t *);
    290 static void	iwh_free_tx_ring(iwh_tx_ring_t *);
    291 static ieee80211_node_t *iwh_node_alloc(ieee80211com_t *);
    292 static void	iwh_node_free(ieee80211_node_t *);
    293 static int	iwh_newstate(ieee80211com_t *, enum ieee80211_state, int);
    294 static void	iwh_mac_access_enter(iwh_sc_t *);
    295 static void	iwh_mac_access_exit(iwh_sc_t *);
    296 static uint32_t	iwh_reg_read(iwh_sc_t *, uint32_t);
    297 static void	iwh_reg_write(iwh_sc_t *, uint32_t, uint32_t);
    298 static int	iwh_load_init_firmware(iwh_sc_t *);
    299 static int	iwh_load_run_firmware(iwh_sc_t *);
    300 static void	iwh_tx_intr(iwh_sc_t *, iwh_rx_desc_t *);
    301 static void	iwh_cmd_intr(iwh_sc_t *, iwh_rx_desc_t *);
    302 static uint_t   iwh_intr(caddr_t, caddr_t);
    303 static int	iwh_eep_load(iwh_sc_t *);
    304 static void	iwh_get_mac_from_eep(iwh_sc_t *);
    305 static int	iwh_eep_sem_down(iwh_sc_t *);
    306 static void	iwh_eep_sem_up(iwh_sc_t *);
    307 static uint_t   iwh_rx_softintr(caddr_t, caddr_t);
    308 static uint8_t	iwh_rate_to_plcp(int);
    309 static int	iwh_cmd(iwh_sc_t *, int, const void *, int, int);
    310 static void	iwh_set_led(iwh_sc_t *, uint8_t, uint8_t, uint8_t);
    311 static int	iwh_hw_set_before_auth(iwh_sc_t *);
    312 static int	iwh_scan(iwh_sc_t *);
    313 static int	iwh_config(iwh_sc_t *);
    314 static void	iwh_stop_master(iwh_sc_t *);
    315 static int	iwh_power_up(iwh_sc_t *);
    316 static int	iwh_preinit(iwh_sc_t *);
    317 static int	iwh_init(iwh_sc_t *);
    318 static void	iwh_stop(iwh_sc_t *);
    319 static int	iwh_quiesce(dev_info_t *t);
    320 static void	iwh_amrr_init(iwh_amrr_t *);
    321 static void	iwh_amrr_timeout(iwh_sc_t *);
    322 static void	iwh_amrr_ratectl(void *, ieee80211_node_t *);
    323 static void	iwh_ucode_alive(iwh_sc_t *, iwh_rx_desc_t *);
    324 static void	iwh_rx_phy_intr(iwh_sc_t *, iwh_rx_desc_t *);
    325 static void	iwh_rx_mpdu_intr(iwh_sc_t *, iwh_rx_desc_t *);
    326 static void	iwh_release_calib_buffer(iwh_sc_t *);
    327 static int	iwh_init_common(iwh_sc_t *);
    328 static uint8_t	*iwh_eep_addr_trans(iwh_sc_t *, uint32_t);
    329 static int	iwh_put_seg_fw(iwh_sc_t *, uint32_t, uint32_t, uint32_t);
    330 static	int	iwh_alive_common(iwh_sc_t *);
    331 static void	iwh_save_calib_result(iwh_sc_t *, iwh_rx_desc_t *);
    332 static int	iwh_tx_power_table(iwh_sc_t *, int);
    333 static int	iwh_attach(dev_info_t *, ddi_attach_cmd_t);
    334 static int	iwh_detach(dev_info_t *, ddi_detach_cmd_t);
    335 static void	iwh_destroy_locks(iwh_sc_t *);
    336 static int	iwh_send(ieee80211com_t *, mblk_t *, uint8_t);
    337 static void	iwh_thread(iwh_sc_t *);
    338 static int	iwh_run_state_config(iwh_sc_t *);
    339 static int	iwh_fast_recover(iwh_sc_t *);
    340 static int	iwh_wme_update(ieee80211com_t *);
    341 static int	iwh_qosparam_to_hw(iwh_sc_t *, int);
    342 static int	iwh_wme_to_qos_ac(int);
    343 static uint16_t	iwh_cw_e_to_cw(uint8_t);
    344 static int	iwh_wmeparam_check(struct wmeParams *);
    345 static inline int	iwh_wme_tid_qos_ac(int);
    346 static inline int	iwh_qos_ac_to_txq(int);
    347 static int	iwh_wme_tid_to_txq(int);
    348 static void	iwh_init_ht_conf(iwh_sc_t *);
    349 static void	iwh_overwrite_11n_rateset(iwh_sc_t *);
    350 static void	iwh_overwrite_ic_default(iwh_sc_t *);
    351 static void	iwh_config_rxon_chain(iwh_sc_t *);
    352 static int	iwh_add_ap_sta(iwh_sc_t *);
    353 static int	iwh_ap_lq(iwh_sc_t *);
    354 static void	iwh_recv_action(struct ieee80211_node *,
    355     const uint8_t *, const uint8_t *);
    356 static int	iwh_send_action(struct ieee80211_node *,
    357     int, int, uint16_t[4]);
    358 static int	iwh_is_max_rate(ieee80211_node_t *);
    359 static int	iwh_is_min_rate(ieee80211_node_t *);
    360 static void	iwh_increase_rate(ieee80211_node_t *);
    361 static void	iwh_decrease_rate(ieee80211_node_t *);
    362 static int	iwh_alloc_dma_mem(iwh_sc_t *, size_t,
    363     ddi_dma_attr_t *, ddi_device_acc_attr_t *,
    364     uint_t, iwh_dma_t *);
    365 static void	iwh_free_dma_mem(iwh_dma_t *);
    366 static int	iwh_reset_hw(iwh_sc_t *);
    367 
    368 /*
    369  * GLD specific operations
    370  */
    371 static int	iwh_m_stat(void *, uint_t, uint64_t *);
    372 static int	iwh_m_start(void *);
    373 static void	iwh_m_stop(void *);
    374 static int	iwh_m_unicst(void *, const uint8_t *);
    375 static int	iwh_m_multicst(void *, boolean_t, const uint8_t *);
    376 static int	iwh_m_promisc(void *, boolean_t);
    377 static mblk_t	*iwh_m_tx(void *, mblk_t *);
    378 static void	iwh_m_ioctl(void *, queue_t *, mblk_t *);
    379 static int	iwh_m_setprop(void *arg, const char *pr_name,
    380     mac_prop_id_t wldp_pr_num, uint_t wldp_length, const void *wldp_buf);
    381 static int	iwh_m_getprop(void *arg, const char *pr_name,
    382     mac_prop_id_t wldp_pr_num, uint_t pr_flags, uint_t wldp_length,
    383     void *wldp_buf, uint_t *perm);
    384 
    385 /*
    386  * Supported rates for 802.11b/g modes (in 500Kbps unit).
    387  */
    388 static const struct ieee80211_rateset iwh_rateset_11b =
    389 	{ 4, { 2, 4, 11, 22 } };
    390 
    391 static const struct ieee80211_rateset iwh_rateset_11g =
    392 	{ 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
    393 
    394 /*
    395  * Default 11n reates supported by this station.
    396  */
    397 extern struct ieee80211_htrateset ieee80211_rateset_11n;
    398 
    399 /*
    400  * For mfthread only
    401  */
    402 extern pri_t minclsyspri;
    403 
    404 #define	DRV_NAME_SP	"iwh"
    405 
    406 /*
    407  * Module Loading Data & Entry Points
    408  */
    409 DDI_DEFINE_STREAM_OPS(iwh_devops, nulldev, nulldev, iwh_attach,
    410     iwh_detach, nodev, NULL, D_MP, NULL, iwh_quiesce);
    411 
    412 static struct modldrv iwh_modldrv = {
    413 	&mod_driverops,
    414 	"Intel(R) ShirleyPeak/EchoPeak driver(N)",
    415 	&iwh_devops
    416 };
    417 
    418 static struct modlinkage iwh_modlinkage = {
    419 	MODREV_1,
    420 	&iwh_modldrv,
    421 	NULL
    422 };
    423 
    424 int
    425 _init(void)
    426 {
    427 	int status;
    428 
    429 	status = ddi_soft_state_init(&iwh_soft_state_p,
    430 	    sizeof (iwh_sc_t), 1);
    431 	if (status != DDI_SUCCESS) {
    432 		return (status);
    433 	}
    434 
    435 	mac_init_ops(&iwh_devops, DRV_NAME_SP);
    436 	status = mod_install(&iwh_modlinkage);
    437 	if (status != DDI_SUCCESS) {
    438 		mac_fini_ops(&iwh_devops);
    439 		ddi_soft_state_fini(&iwh_soft_state_p);
    440 	}
    441 
    442 	return (status);
    443 }
    444 
    445 int
    446 _fini(void)
    447 {
    448 	int status;
    449 
    450 	status = mod_remove(&iwh_modlinkage);
    451 	if (DDI_SUCCESS == status) {
    452 		mac_fini_ops(&iwh_devops);
    453 		ddi_soft_state_fini(&iwh_soft_state_p);
    454 	}
    455 
    456 	return (status);
    457 }
    458 
    459 int
    460 _info(struct modinfo *mip)
    461 {
    462 	return (mod_info(&iwh_modlinkage, mip));
    463 }
    464 
    465 /*
    466  * Mac Call Back entries
    467  */
    468 mac_callbacks_t	iwh_m_callbacks = {
    469 	MC_IOCTL | MC_SETPROP | MC_GETPROP,
    470 	iwh_m_stat,
    471 	iwh_m_start,
    472 	iwh_m_stop,
    473 	iwh_m_promisc,
    474 	iwh_m_multicst,
    475 	iwh_m_unicst,
    476 	iwh_m_tx,
    477 	iwh_m_ioctl,
    478 	NULL,
    479 	NULL,
    480 	NULL,
    481 	iwh_m_setprop,
    482 	iwh_m_getprop
    483 };
    484 
    485 #ifdef DEBUG
    486 void
    487 iwh_dbg(uint32_t flags, const char *fmt, ...)
    488 {
    489 	va_list	ap;
    490 
    491 	if (flags & iwh_dbg_flags) {
    492 		va_start(ap, fmt);
    493 		vcmn_err(CE_NOTE, fmt, ap);
    494 		va_end(ap);
    495 	}
    496 }
    497 #endif	/* DEBUG */
    498 
    499 /*
    500  * device operations
    501  */
    502 int
    503 iwh_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
    504 {
    505 	iwh_sc_t *sc;
    506 	ieee80211com_t *ic;
    507 	int instance, i;
    508 	char strbuf[32];
    509 	wifi_data_t wd = { 0 };
    510 	mac_register_t *macp;
    511 	int intr_type;
    512 	int intr_count;
    513 	int intr_actual;
    514 	int err = DDI_FAILURE;
    515 
    516 	switch (cmd) {
    517 	case DDI_ATTACH:
    518 		break;
    519 
    520 	case DDI_RESUME:
    521 		instance = ddi_get_instance(dip);
    522 		sc = ddi_get_soft_state(iwh_soft_state_p,
    523 		    instance);
    524 		ASSERT(sc != NULL);
    525 
    526 		if (sc->sc_flags & IWH_F_RUNNING) {
    527 			(void) iwh_init(sc);
    528 		}
    529 
    530 		atomic_and_32(&sc->sc_flags, ~IWH_F_SUSPEND);
    531 
    532 		IWH_DBG((IWH_DEBUG_RESUME, "iwh_attach(): "
    533 		    "resume\n"));
    534 		return (DDI_SUCCESS);
    535 
    536 	default:
    537 		goto attach_fail1;
    538 	}
    539 
    540 	instance = ddi_get_instance(dip);
    541 	err = ddi_soft_state_zalloc(iwh_soft_state_p, instance);
    542 	if (err != DDI_SUCCESS) {
    543 		cmn_err(CE_WARN, "iwh_attach(): "
    544 		    "failed to allocate soft state\n");
    545 		goto attach_fail1;
    546 	}
    547 
    548 	sc = ddi_get_soft_state(iwh_soft_state_p, instance);
    549 	ASSERT(sc != NULL);
    550 
    551 	sc->sc_dip = dip;
    552 
    553 	/*
    554 	 * map configure space
    555 	 */
    556 	err = ddi_regs_map_setup(dip, 0, &sc->sc_cfg_base, 0, 0,
    557 	    &iwh_reg_accattr, &sc->sc_cfg_handle);
    558 	if (err != DDI_SUCCESS) {
    559 		cmn_err(CE_WARN, "iwh_attach(): "
    560 		    "failed to map config spaces regs\n");
    561 		goto attach_fail2;
    562 	}
    563 
    564 	sc->sc_dev_id = ddi_get16(sc->sc_cfg_handle,
    565 	    (uint16_t *)(sc->sc_cfg_base + PCI_CONF_DEVID));
    566 	if ((sc->sc_dev_id != 0x4232) &&
    567 	    (sc->sc_dev_id != 0x4235) &&
    568 	    (sc->sc_dev_id != 0x4236) &&
    569 	    (sc->sc_dev_id != 0x4237) &&
    570 	    (sc->sc_dev_id != 0x423a) &&
    571 	    (sc->sc_dev_id != 0x423b) &&
    572 	    (sc->sc_dev_id != 0x423c) &&
    573 	    (sc->sc_dev_id != 0x423d)) {
    574 		cmn_err(CE_WARN, "iwh_attach(): "
    575 		    "Do not support this device\n");
    576 		goto attach_fail3;
    577 	}
    578 
    579 	iwh_init_ht_conf(sc);
    580 	iwh_overwrite_11n_rateset(sc);
    581 
    582 	sc->sc_rev = ddi_get8(sc->sc_cfg_handle,
    583 	    (uint8_t *)(sc->sc_cfg_base + PCI_CONF_REVID));
    584 
    585 	/*
    586 	 * keep from disturbing C3 state of CPU
    587 	 */
    588 	ddi_put8(sc->sc_cfg_handle, (uint8_t *)(sc->sc_cfg_base +
    589 	    PCI_CFG_RETRY_TIMEOUT), 0);
    590 
    591 	/*
    592 	 * determine the size of buffer for frame and command to ucode
    593 	 */
    594 	sc->sc_clsz = ddi_get16(sc->sc_cfg_handle,
    595 	    (uint16_t *)(sc->sc_cfg_base + PCI_CONF_CACHE_LINESZ));
    596 	if (!sc->sc_clsz) {
    597 		sc->sc_clsz = 16;
    598 	}
    599 	sc->sc_clsz = (sc->sc_clsz << 2);
    600 
    601 	sc->sc_dmabuf_sz = roundup(0x2000 + sizeof (struct ieee80211_frame) +
    602 	    IEEE80211_MTU + IEEE80211_CRC_LEN +
    603 	    (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN +
    604 	    IEEE80211_WEP_CRCLEN), sc->sc_clsz);
    605 
    606 	/*
    607 	 * Map operating registers
    608 	 */
    609 	err = ddi_regs_map_setup(dip, 1, &sc->sc_base,
    610 	    0, 0, &iwh_reg_accattr, &sc->sc_handle);
    611 	if (err != DDI_SUCCESS) {
    612 		cmn_err(CE_WARN, "iwh_attach(): "
    613 		    "failed to map device regs\n");
    614 		goto attach_fail3;
    615 	}
    616 
    617 	/*
    618 	 * this is used to differentiate type of hardware
    619 	 */
    620 	sc->sc_hw_rev = IWH_READ(sc, CSR_HW_REV);
    621 
    622 	err = ddi_intr_get_supported_types(dip, &intr_type);
    623 	if ((err != DDI_SUCCESS) || (!(intr_type & DDI_INTR_TYPE_FIXED))) {
    624 		cmn_err(CE_WARN, "iwh_attach(): "
    625 		    "fixed type interrupt is not supported\n");
    626 		goto attach_fail4;
    627 	}
    628 
    629 	err = ddi_intr_get_nintrs(dip, DDI_INTR_TYPE_FIXED, &intr_count);
    630 	if ((err != DDI_SUCCESS) || (intr_count != 1)) {
    631 		cmn_err(CE_WARN, "iwh_attach(): "
    632 		    "no fixed interrupts\n");
    633 		goto attach_fail4;
    634 	}
    635 
    636 	sc->sc_intr_htable = kmem_zalloc(sizeof (ddi_intr_handle_t), KM_SLEEP);
    637 
    638 	err = ddi_intr_alloc(dip, sc->sc_intr_htable, DDI_INTR_TYPE_FIXED, 0,
    639 	    intr_count, &intr_actual, 0);
    640 	if ((err != DDI_SUCCESS) || (intr_actual != 1)) {
    641 		cmn_err(CE_WARN, "iwh_attach(): "
    642 		    "ddi_intr_alloc() failed 0x%x\n", err);
    643 		goto attach_fail5;
    644 	}
    645 
    646 	err = ddi_intr_get_pri(sc->sc_intr_htable[0], &sc->sc_intr_pri);
    647 	if (err != DDI_SUCCESS) {
    648 		cmn_err(CE_WARN, "iwh_attach(): "
    649 		    "ddi_intr_get_pri() failed 0x%x\n", err);
    650 		goto attach_fail6;
    651 	}
    652 
    653 	mutex_init(&sc->sc_glock, NULL, MUTEX_DRIVER,
    654 	    DDI_INTR_PRI(sc->sc_intr_pri));
    655 	mutex_init(&sc->sc_tx_lock, NULL, MUTEX_DRIVER,
    656 	    DDI_INTR_PRI(sc->sc_intr_pri));
    657 	mutex_init(&sc->sc_mt_lock, NULL, MUTEX_DRIVER,
    658 	    DDI_INTR_PRI(sc->sc_intr_pri));
    659 
    660 	cv_init(&sc->sc_cmd_cv, NULL, CV_DRIVER, NULL);
    661 	cv_init(&sc->sc_put_seg_cv, NULL, CV_DRIVER, NULL);
    662 	cv_init(&sc->sc_ucode_cv, NULL, CV_DRIVER, NULL);
    663 
    664 	/*
    665 	 * initialize the mfthread
    666 	 */
    667 	cv_init(&sc->sc_mt_cv, NULL, CV_DRIVER, NULL);
    668 	sc->sc_mf_thread = NULL;
    669 	sc->sc_mf_thread_switch = 0;
    670 
    671 	/*
    672 	 * Allocate shared buffer for communication between driver and ucode.
    673 	 */
    674 	err = iwh_alloc_shared(sc);
    675 	if (err != DDI_SUCCESS) {
    676 		cmn_err(CE_WARN, "iwh_attach(): "
    677 		    "failed to allocate shared page\n");
    678 		goto attach_fail7;
    679 	}
    680 
    681 	(void) memset(sc->sc_shared, 0, sizeof (iwh_shared_t));
    682 
    683 	/*
    684 	 * Allocate keep warm page.
    685 	 */
    686 	err = iwh_alloc_kw(sc);
    687 	if (err != DDI_SUCCESS) {
    688 		cmn_err(CE_WARN, "iwh_attach(): "
    689 		    "failed to allocate keep warm page\n");
    690 		goto attach_fail8;
    691 	}
    692 
    693 	err = iwh_reset_hw(sc);
    694 	if (err != IWH_SUCCESS) {
    695 		cmn_err(CE_WARN, "iwh_attach(): "
    696 		    "failed to reset hardware\n");
    697 		goto attach_fail9;
    698 	}
    699 
    700 	/*
    701 	 * Do some necessary hardware initializations.
    702 	 */
    703 	err = iwh_preinit(sc);
    704 	if (err != IWH_SUCCESS) {
    705 		cmn_err(CE_WARN, "iwh_attach(): "
    706 		    "failed to initialize hardware\n");
    707 		goto attach_fail9;
    708 	}
    709 
    710 	/*
    711 	 * get hardware configurations from eeprom
    712 	 */
    713 	err = iwh_eep_load(sc);
    714 	if (err != IWH_SUCCESS) {
    715 		cmn_err(CE_WARN, "iwh_attach(): "
    716 		    "failed to load eeprom\n");
    717 		goto attach_fail9;
    718 	}
    719 
    720 	if (IWH_READ_EEP_SHORT(sc, EEP_VERSION) < 0x011a) {
    721 		IWH_DBG((IWH_DEBUG_EEPROM, "iwh_attach(): "
    722 		    "unsupported eeprom detected\n"));
    723 		goto attach_fail9;
    724 	}
    725 
    726 	/*
    727 	 * get MAC address of this chipset
    728 	 */
    729 	iwh_get_mac_from_eep(sc);
    730 
    731 	/*
    732 	 * calibration information from EEPROM
    733 	 */
    734 	sc->sc_eep_calib = (struct iwh_eep_calibration *)
    735 	    iwh_eep_addr_trans(sc, EEP_CALIBRATION);
    736 
    737 	/*
    738 	 * initialize TX and RX ring buffers
    739 	 */
    740 	err = iwh_ring_init(sc);
    741 	if (err != DDI_SUCCESS) {
    742 		cmn_err(CE_WARN, "iwh_attach(): "
    743 		    "failed to allocate and initialize ring\n");
    744 		goto attach_fail9;
    745 	}
    746 
    747 	if ((0x423c == sc->sc_dev_id) || (0x423d == sc->sc_dev_id)) {
    748 		sc->sc_hdr = (iwh_firmware_hdr_t *)iwh_fw_5150_bin;
    749 	} else {
    750 		sc->sc_hdr = (iwh_firmware_hdr_t *)iwh_fw_5000_bin;
    751 	}
    752 
    753 	/*
    754 	 * copy ucode to dma buffer
    755 	 */
    756 	err = iwh_alloc_fw_dma(sc);
    757 	if (err != DDI_SUCCESS) {
    758 		cmn_err(CE_WARN, "iwh_attach(): "
    759 		    "failed to allocate firmware dma\n");
    760 		goto attach_fail10;
    761 	}
    762 
    763 	/*
    764 	 * Initialize the wifi part, which will be used by
    765 	 * 802.11 module
    766 	 */
    767 	ic = &sc->sc_ic;
    768 	ic->ic_phytype  = IEEE80211_T_HT;
    769 	ic->ic_opmode   = IEEE80211_M_STA; /* default to BSS mode */
    770 	ic->ic_state    = IEEE80211_S_INIT;
    771 	ic->ic_maxrssi  = 100; /* experimental number */
    772 	ic->ic_caps = IEEE80211_C_SHPREAMBLE | IEEE80211_C_TXPMGT |
    773 	    IEEE80211_C_PMGT | IEEE80211_C_SHSLOT;
    774 
    775 	/*
    776 	 * Support WPA/WPA2
    777 	 */
    778 	ic->ic_caps |= IEEE80211_C_WPA;
    779 
    780 	/*
    781 	 * Support QoS/WME
    782 	 */
    783 	ic->ic_caps |= IEEE80211_C_WME;
    784 	ic->ic_wme.wme_update = iwh_wme_update;
    785 
    786 	/*
    787 	 * Support 802.11n/HT
    788 	 */
    789 	if (sc->sc_ht_conf.ht_support) {
    790 		ic->ic_htcaps = IEEE80211_HTC_HT |
    791 		    IEEE80211_HTC_AMSDU;
    792 		ic->ic_htcaps |= IEEE80211_HTCAP_MAXAMSDU_7935;
    793 	}
    794 
    795 	/*
    796 	 * set supported .11b and .11g rates
    797 	 */
    798 	ic->ic_sup_rates[IEEE80211_MODE_11B] = iwh_rateset_11b;
    799 	ic->ic_sup_rates[IEEE80211_MODE_11G] = iwh_rateset_11g;
    800 
    801 	/*
    802 	 * set supported .11b and .11g channels (1 through 11)
    803 	 */
    804 	for (i = 1; i <= 11; i++) {
    805 		ic->ic_sup_channels[i].ich_freq =
    806 		    ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
    807 		ic->ic_sup_channels[i].ich_flags =
    808 		    IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
    809 		    IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ |
    810 		    IEEE80211_CHAN_PASSIVE;
    811 
    812 		if (sc->sc_ht_conf.cap & HT_CAP_SUP_WIDTH) {
    813 			ic->ic_sup_channels[i].ich_flags |=
    814 			    IEEE80211_CHAN_HT40;
    815 		} else {
    816 			ic->ic_sup_channels[i].ich_flags |=
    817 			    IEEE80211_CHAN_HT20;
    818 		}
    819 	}
    820 
    821 	ic->ic_ibss_chan = &ic->ic_sup_channels[0];
    822 	ic->ic_xmit = iwh_send;
    823 
    824 	/*
    825 	 * attach to 802.11 module
    826 	 */
    827 	ieee80211_attach(ic);
    828 
    829 	/*
    830 	 * different instance has different WPA door
    831 	 */
    832 	(void) snprintf(ic->ic_wpadoor, MAX_IEEE80211STR, "%s_%s%d", WPA_DOOR,
    833 	    ddi_driver_name(dip),
    834 	    ddi_get_instance(dip));
    835 
    836 	/*
    837 	 * Overwrite 80211 default configurations.
    838 	 */
    839 	iwh_overwrite_ic_default(sc);
    840 
    841 	/*
    842 	 * initialize 802.11 module
    843 	 */
    844 	ieee80211_media_init(ic);
    845 
    846 	/*
    847 	 * initialize default tx key
    848 	 */
    849 	ic->ic_def_txkey = 0;
    850 
    851 	err = ddi_intr_add_softint(dip, &sc->sc_soft_hdl, DDI_INTR_SOFTPRI_MAX,
    852 	    iwh_rx_softintr, (caddr_t)sc);
    853 	if (err != DDI_SUCCESS) {
    854 		cmn_err(CE_WARN, "iwh_attach(): "
    855 		    "add soft interrupt failed\n");
    856 		goto attach_fail12;
    857 	}
    858 
    859 	err = ddi_intr_add_handler(sc->sc_intr_htable[0], iwh_intr,
    860 	    (caddr_t)sc, NULL);
    861 	if (err != DDI_SUCCESS) {
    862 		cmn_err(CE_WARN, "iwh_attach(): "
    863 		    "ddi_intr_add_handle() failed\n");
    864 		goto attach_fail13;
    865 	}
    866 
    867 	err = ddi_intr_enable(sc->sc_intr_htable[0]);
    868 	if (err != DDI_SUCCESS) {
    869 		cmn_err(CE_WARN, "iwh_attach(): "
    870 		    "ddi_intr_enable() failed\n");
    871 		goto attach_fail14;
    872 	}
    873 
    874 	/*
    875 	 * Initialize pointer to device specific functions
    876 	 */
    877 	wd.wd_secalloc = WIFI_SEC_NONE;
    878 	wd.wd_opmode = ic->ic_opmode;
    879 	IEEE80211_ADDR_COPY(wd.wd_bssid, ic->ic_macaddr);
    880 
    881 	/*
    882 	 * create relation to GLD
    883 	 */
    884 	macp = mac_alloc(MAC_VERSION);
    885 	if (NULL == macp) {
    886 		cmn_err(CE_WARN, "iwh_attach(): "
    887 		    "failed to do mac_alloc()\n");
    888 		goto attach_fail15;
    889 	}
    890 
    891 	macp->m_type_ident	= MAC_PLUGIN_IDENT_WIFI;
    892 	macp->m_driver		= sc;
    893 	macp->m_dip		= dip;
    894 	macp->m_src_addr	= ic->ic_macaddr;
    895 	macp->m_callbacks	= &iwh_m_callbacks;
    896 	macp->m_min_sdu		= 0;
    897 	macp->m_max_sdu		= IEEE80211_MTU;
    898 	macp->m_pdata		= &wd;
    899 	macp->m_pdata_size	= sizeof (wd);
    900 
    901 	/*
    902 	 * Register the macp to mac
    903 	 */
    904 	err = mac_register(macp, &ic->ic_mach);
    905 	mac_free(macp);
    906 	if (err != DDI_SUCCESS) {
    907 		cmn_err(CE_WARN, "iwh_attach(): "
    908 		    "failed to do mac_register()\n");
    909 		goto attach_fail15;
    910 	}
    911 
    912 	/*
    913 	 * Create minor node of type DDI_NT_NET_WIFI
    914 	 */
    915 	(void) snprintf(strbuf, sizeof (strbuf), DRV_NAME_SP"%d", instance);
    916 	err = ddi_create_minor_node(dip, strbuf, S_IFCHR,
    917 	    instance + 1, DDI_NT_NET_WIFI, 0);
    918 	if (err != DDI_SUCCESS) {
    919 		cmn_err(CE_WARN, "iwh_attach(): "
    920 		    "failed to do ddi_create_minor_node()\n");
    921 	}
    922 
    923 	/*
    924 	 * Notify link is down now
    925 	 */
    926 	mac_link_update(ic->ic_mach, LINK_STATE_DOWN);
    927 
    928 	/*
    929 	 * create the mf thread to handle the link status,
    930 	 * recovery fatal error, etc.
    931 	 */
    932 	sc->sc_mf_thread_switch = 1;
    933 	if (NULL == sc->sc_mf_thread) {
    934 		sc->sc_mf_thread = thread_create((caddr_t)NULL, 0,
    935 		    iwh_thread, sc, 0, &p0, TS_RUN, minclsyspri);
    936 	}
    937 
    938 	atomic_or_32(&sc->sc_flags, IWH_F_ATTACHED);
    939 
    940 	return (DDI_SUCCESS);
    941 
    942 attach_fail15:
    943 	(void) ddi_intr_disable(sc->sc_intr_htable[0]);
    944 
    945 attach_fail14:
    946 	(void) ddi_intr_remove_handler(sc->sc_intr_htable[0]);
    947 
    948 attach_fail13:
    949 	(void) ddi_intr_remove_softint(sc->sc_soft_hdl);
    950 	sc->sc_soft_hdl = NULL;
    951 
    952 attach_fail12:
    953 	ieee80211_detach(ic);
    954 
    955 attach_fail11:
    956 	iwh_free_fw_dma(sc);
    957 
    958 attach_fail10:
    959 	iwh_ring_free(sc);
    960 
    961 attach_fail9:
    962 	iwh_free_kw(sc);
    963 
    964 attach_fail8:
    965 	iwh_free_shared(sc);
    966 
    967 attach_fail7:
    968 	iwh_destroy_locks(sc);
    969 
    970 attach_fail6:
    971 	(void) ddi_intr_free(sc->sc_intr_htable[0]);
    972 
    973 attach_fail5:
    974 	kmem_free(sc->sc_intr_htable, sizeof (ddi_intr_handle_t));
    975 
    976 attach_fail4:
    977 	ddi_regs_map_free(&sc->sc_handle);
    978 
    979 attach_fail3:
    980 	ddi_regs_map_free(&sc->sc_cfg_handle);
    981 
    982 attach_fail2:
    983 	ddi_soft_state_free(iwh_soft_state_p, instance);
    984 
    985 attach_fail1:
    986 	return (DDI_FAILURE);
    987 }
    988 
    989 int
    990 iwh_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
    991 {
    992 	iwh_sc_t *sc;
    993 	ieee80211com_t *ic;
    994 	int err;
    995 
    996 	sc = ddi_get_soft_state(iwh_soft_state_p, ddi_get_instance(dip));
    997 	ASSERT(sc != NULL);
    998 	ic = &sc->sc_ic;
    999 
   1000 	switch (cmd) {
   1001 	case DDI_DETACH:
   1002 		break;
   1003 
   1004 	case DDI_SUSPEND:
   1005 		atomic_and_32(&sc->sc_flags, ~IWH_F_HW_ERR_RECOVER);
   1006 		atomic_and_32(&sc->sc_flags, ~IWH_F_RATE_AUTO_CTL);
   1007 
   1008 		atomic_or_32(&sc->sc_flags, IWH_F_SUSPEND);
   1009 
   1010 		if (sc->sc_flags & IWH_F_RUNNING) {
   1011 			ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
   1012 			iwh_stop(sc);
   1013 		}
   1014 
   1015 		IWH_DBG((IWH_DEBUG_RESUME, "iwh_detach(): "
   1016 		    "suspend\n"));
   1017 		return (DDI_SUCCESS);
   1018 
   1019 	default:
   1020 		return (DDI_FAILURE);
   1021 	}
   1022 
   1023 	if (!(sc->sc_flags & IWH_F_ATTACHED)) {
   1024 		return (DDI_FAILURE);
   1025 	}
   1026 
   1027 	/*
   1028 	 * Destroy the mf_thread
   1029 	 */
   1030 	sc->sc_mf_thread_switch = 0;
   1031 
   1032 	mutex_enter(&sc->sc_mt_lock);
   1033 	while (sc->sc_mf_thread != NULL) {
   1034 		if (cv_wait_sig(&sc->sc_mt_cv, &sc->sc_mt_lock) == 0) {
   1035 			break;
   1036 		}
   1037 	}
   1038 	mutex_exit(&sc->sc_mt_lock);
   1039 
   1040 	err = mac_disable(sc->sc_ic.ic_mach);
   1041 	if (err != DDI_SUCCESS) {
   1042 		return (err);
   1043 	}
   1044 
   1045 	/*
   1046 	 * stop chipset
   1047 	 */
   1048 	iwh_stop(sc);
   1049 
   1050 	DELAY(500000);
   1051 
   1052 	/*
   1053 	 * release buffer for calibration
   1054 	 */
   1055 	iwh_release_calib_buffer(sc);
   1056 
   1057 	/*
   1058 	 * Unregiste from GLD
   1059 	 */
   1060 	(void) mac_unregister(sc->sc_ic.ic_mach);
   1061 
   1062 	mutex_enter(&sc->sc_glock);
   1063 	iwh_free_fw_dma(sc);
   1064 	iwh_ring_free(sc);
   1065 	iwh_free_kw(sc);
   1066 	iwh_free_shared(sc);
   1067 	mutex_exit(&sc->sc_glock);
   1068 
   1069 	(void) ddi_intr_disable(sc->sc_intr_htable[0]);
   1070 	(void) ddi_intr_remove_handler(sc->sc_intr_htable[0]);
   1071 	(void) ddi_intr_free(sc->sc_intr_htable[0]);
   1072 	kmem_free(sc->sc_intr_htable, sizeof (ddi_intr_handle_t));
   1073 
   1074 	(void) ddi_intr_remove_softint(sc->sc_soft_hdl);
   1075 	sc->sc_soft_hdl = NULL;
   1076 
   1077 	/*
   1078 	 * detach from 80211 module
   1079 	 */
   1080 	ieee80211_detach(&sc->sc_ic);
   1081 
   1082 	iwh_destroy_locks(sc);
   1083 
   1084 	ddi_regs_map_free(&sc->sc_handle);
   1085 	ddi_regs_map_free(&sc->sc_cfg_handle);
   1086 	ddi_remove_minor_node(dip, NULL);
   1087 	ddi_soft_state_free(iwh_soft_state_p, ddi_get_instance(dip));
   1088 
   1089 	return (DDI_SUCCESS);
   1090 }
   1091 
   1092 /*
   1093  * destroy all locks
   1094  */
   1095 static void
   1096 iwh_destroy_locks(iwh_sc_t *sc)
   1097 {
   1098 	cv_destroy(&sc->sc_mt_cv);
   1099 	cv_destroy(&sc->sc_cmd_cv);
   1100 	cv_destroy(&sc->sc_put_seg_cv);
   1101 	cv_destroy(&sc->sc_ucode_cv);
   1102 	mutex_destroy(&sc->sc_mt_lock);
   1103 	mutex_destroy(&sc->sc_tx_lock);
   1104 	mutex_destroy(&sc->sc_glock);
   1105 }
   1106 
   1107 /*
   1108  * Allocate an area of memory and a DMA handle for accessing it
   1109  */
   1110 static int
   1111 iwh_alloc_dma_mem(iwh_sc_t *sc, size_t memsize,
   1112     ddi_dma_attr_t *dma_attr_p, ddi_device_acc_attr_t *acc_attr_p,
   1113     uint_t dma_flags, iwh_dma_t *dma_p)
   1114 {
   1115 	caddr_t vaddr;
   1116 	int err = DDI_FAILURE;
   1117 
   1118 	/*
   1119 	 * Allocate handle
   1120 	 */
   1121 	err = ddi_dma_alloc_handle(sc->sc_dip, dma_attr_p,
   1122 	    DDI_DMA_SLEEP, NULL, &dma_p->dma_hdl);
   1123 	if (err != DDI_SUCCESS) {
   1124 		dma_p->dma_hdl = NULL;
   1125 		return (DDI_FAILURE);
   1126 	}
   1127 
   1128 	/*
   1129 	 * Allocate memory
   1130 	 */
   1131 	err = ddi_dma_mem_alloc(dma_p->dma_hdl, memsize, acc_attr_p,
   1132 	    dma_flags & (DDI_DMA_CONSISTENT | DDI_DMA_STREAMING),
   1133 	    DDI_DMA_SLEEP, NULL, &vaddr, &dma_p->alength, &dma_p->acc_hdl);
   1134 	if (err != DDI_SUCCESS) {
   1135 		ddi_dma_free_handle(&dma_p->dma_hdl);
   1136 		dma_p->dma_hdl = NULL;
   1137 		dma_p->acc_hdl = NULL;
   1138 		return (DDI_FAILURE);
   1139 	}
   1140 
   1141 	/*
   1142 	 * Bind the two together
   1143 	 */
   1144 	dma_p->mem_va = vaddr;
   1145 	err = ddi_dma_addr_bind_handle(dma_p->dma_hdl, NULL,
   1146 	    vaddr, dma_p->alength, dma_flags, DDI_DMA_SLEEP, NULL,
   1147 	    &dma_p->cookie, &dma_p->ncookies);
   1148 	if (err != DDI_DMA_MAPPED) {
   1149 		ddi_dma_mem_free(&dma_p->acc_hdl);
   1150 		ddi_dma_free_handle(&dma_p->dma_hdl);
   1151 		dma_p->acc_hdl = NULL;
   1152 		dma_p->dma_hdl = NULL;
   1153 		return (DDI_FAILURE);
   1154 	}
   1155 
   1156 	dma_p->nslots = ~0U;
   1157 	dma_p->size = ~0U;
   1158 	dma_p->token = ~0U;
   1159 	dma_p->offset = 0;
   1160 	return (DDI_SUCCESS);
   1161 }
   1162 
   1163 /*
   1164  * Free one allocated area of DMAable memory
   1165  */
   1166 static void
   1167 iwh_free_dma_mem(iwh_dma_t *dma_p)
   1168 {
   1169 	if (dma_p->dma_hdl != NULL) {
   1170 		if (dma_p->ncookies) {
   1171 			(void) ddi_dma_unbind_handle(dma_p->dma_hdl);
   1172 			dma_p->ncookies = 0;
   1173 		}
   1174 		ddi_dma_free_handle(&dma_p->dma_hdl);
   1175 		dma_p->dma_hdl = NULL;
   1176 	}
   1177 
   1178 	if (dma_p->acc_hdl != NULL) {
   1179 		ddi_dma_mem_free(&dma_p->acc_hdl);
   1180 		dma_p->acc_hdl = NULL;
   1181 	}
   1182 }
   1183 
   1184 /*
   1185  * copy ucode into dma buffers
   1186  */
   1187 static int
   1188 iwh_alloc_fw_dma(iwh_sc_t *sc)
   1189 {
   1190 	int err = DDI_FAILURE;
   1191 	iwh_dma_t *dma_p;
   1192 	char *t;
   1193 
   1194 	/*
   1195 	 * firmware image layout:
   1196 	 * |HDR|<-TEXT->|<-DATA->|<-INIT_TEXT->|<-INIT_DATA->|<-BOOT->|
   1197 	 */
   1198 
   1199 	/*
   1200 	 * copy text of runtime ucode
   1201 	 */
   1202 	t = (char *)(sc->sc_hdr + 1);
   1203 	err = iwh_alloc_dma_mem(sc, LE_32(sc->sc_hdr->textsz),
   1204 	    &fw_dma_attr, &iwh_dma_accattr,
   1205 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1206 	    &sc->sc_dma_fw_text);
   1207 	if (err != DDI_SUCCESS) {
   1208 		cmn_err(CE_WARN, "iwh_alloc_fw_dma(): "
   1209 		    "failed to allocate text dma memory.\n");
   1210 		goto fail;
   1211 	}
   1212 
   1213 	dma_p = &sc->sc_dma_fw_text;
   1214 
   1215 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_fw_dma(): "
   1216 	    "text[ncookies:%d addr:%lx size:%lx]\n",
   1217 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1218 	    dma_p->cookie.dmac_size));
   1219 
   1220 	bcopy(t, dma_p->mem_va, LE_32(sc->sc_hdr->textsz));
   1221 
   1222 	/*
   1223 	 * copy data and bak-data of runtime ucode
   1224 	 */
   1225 	t += LE_32(sc->sc_hdr->textsz);
   1226 	err = iwh_alloc_dma_mem(sc, LE_32(sc->sc_hdr->datasz),
   1227 	    &fw_dma_attr, &iwh_dma_accattr,
   1228 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1229 	    &sc->sc_dma_fw_data);
   1230 	if (err != DDI_SUCCESS) {
   1231 		cmn_err(CE_WARN, "iwh_alloc_fw_dma(): "
   1232 		    "failed to allocate data dma memory\n");
   1233 		goto fail;
   1234 	}
   1235 
   1236 	dma_p = &sc->sc_dma_fw_data;
   1237 
   1238 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_fw_dma(): "
   1239 	    "data[ncookies:%d addr:%lx size:%lx]\n",
   1240 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1241 	    dma_p->cookie.dmac_size));
   1242 
   1243 	bcopy(t, dma_p->mem_va, LE_32(sc->sc_hdr->datasz));
   1244 
   1245 	err = iwh_alloc_dma_mem(sc, LE_32(sc->sc_hdr->datasz),
   1246 	    &fw_dma_attr, &iwh_dma_accattr,
   1247 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1248 	    &sc->sc_dma_fw_data_bak);
   1249 	if (err != DDI_SUCCESS) {
   1250 		cmn_err(CE_WARN, "iwh_alloc_fw_dma(): "
   1251 		    "failed to allocate data bakup dma memory\n");
   1252 		goto fail;
   1253 	}
   1254 
   1255 	dma_p = &sc->sc_dma_fw_data_bak;
   1256 
   1257 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_fw_dma(): "
   1258 	    "data_bak[ncookies:%d addr:%lx "
   1259 	    "size:%lx]\n",
   1260 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1261 	    dma_p->cookie.dmac_size));
   1262 
   1263 	bcopy(t, dma_p->mem_va, LE_32(sc->sc_hdr->datasz));
   1264 
   1265 	/*
   1266 	 * copy text of init ucode
   1267 	 */
   1268 	t += LE_32(sc->sc_hdr->datasz);
   1269 	err = iwh_alloc_dma_mem(sc, LE_32(sc->sc_hdr->init_textsz),
   1270 	    &fw_dma_attr, &iwh_dma_accattr,
   1271 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1272 	    &sc->sc_dma_fw_init_text);
   1273 	if (err != DDI_SUCCESS) {
   1274 		cmn_err(CE_WARN, "iwh_alloc_fw_dma(): "
   1275 		    "failed to allocate init text dma memory\n");
   1276 		goto fail;
   1277 	}
   1278 
   1279 	dma_p = &sc->sc_dma_fw_init_text;
   1280 
   1281 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_fw_dma(): "
   1282 	    "init_text[ncookies:%d addr:%lx "
   1283 	    "size:%lx]\n",
   1284 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1285 	    dma_p->cookie.dmac_size));
   1286 
   1287 	bcopy(t, dma_p->mem_va, LE_32(sc->sc_hdr->init_textsz));
   1288 
   1289 	/*
   1290 	 * copy data of init ucode
   1291 	 */
   1292 	t += LE_32(sc->sc_hdr->init_textsz);
   1293 	err = iwh_alloc_dma_mem(sc, LE_32(sc->sc_hdr->init_datasz),
   1294 	    &fw_dma_attr, &iwh_dma_accattr,
   1295 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1296 	    &sc->sc_dma_fw_init_data);
   1297 	if (err != DDI_SUCCESS) {
   1298 		cmn_err(CE_WARN, "iwh_alloc_fw_dma(): "
   1299 		    "failed to allocate init data dma memory\n");
   1300 		goto fail;
   1301 	}
   1302 
   1303 	dma_p = &sc->sc_dma_fw_init_data;
   1304 
   1305 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_fw_dma(): "
   1306 	    "init_data[ncookies:%d addr:%lx "
   1307 	    "size:%lx]\n",
   1308 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1309 	    dma_p->cookie.dmac_size));
   1310 
   1311 	bcopy(t, dma_p->mem_va, LE_32(sc->sc_hdr->init_datasz));
   1312 
   1313 	sc->sc_boot = t + LE_32(sc->sc_hdr->init_datasz);
   1314 
   1315 fail:
   1316 	return (err);
   1317 }
   1318 
   1319 static void
   1320 iwh_free_fw_dma(iwh_sc_t *sc)
   1321 {
   1322 	iwh_free_dma_mem(&sc->sc_dma_fw_text);
   1323 	iwh_free_dma_mem(&sc->sc_dma_fw_data);
   1324 	iwh_free_dma_mem(&sc->sc_dma_fw_data_bak);
   1325 	iwh_free_dma_mem(&sc->sc_dma_fw_init_text);
   1326 	iwh_free_dma_mem(&sc->sc_dma_fw_init_data);
   1327 }
   1328 
   1329 /*
   1330  * Allocate a shared buffer between host and NIC.
   1331  */
   1332 static int
   1333 iwh_alloc_shared(iwh_sc_t *sc)
   1334 {
   1335 #ifdef	DEBUG
   1336 	iwh_dma_t *dma_p;
   1337 #endif
   1338 	int err = DDI_FAILURE;
   1339 
   1340 	/*
   1341 	 * must be aligned on a 4K-page boundary
   1342 	 */
   1343 	err = iwh_alloc_dma_mem(sc, sizeof (iwh_shared_t),
   1344 	    &sh_dma_attr, &iwh_dma_descattr,
   1345 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1346 	    &sc->sc_dma_sh);
   1347 	if (err != DDI_SUCCESS) {
   1348 		goto fail;
   1349 	}
   1350 
   1351 	sc->sc_shared = (iwh_shared_t *)sc->sc_dma_sh.mem_va;
   1352 
   1353 #ifdef	DEBUG
   1354 	dma_p = &sc->sc_dma_sh;
   1355 #endif
   1356 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_shared(): "
   1357 	    "sh[ncookies:%d addr:%lx size:%lx]\n",
   1358 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1359 	    dma_p->cookie.dmac_size));
   1360 
   1361 	return (err);
   1362 
   1363 fail:
   1364 	iwh_free_shared(sc);
   1365 	return (err);
   1366 }
   1367 
   1368 static void
   1369 iwh_free_shared(iwh_sc_t *sc)
   1370 {
   1371 	iwh_free_dma_mem(&sc->sc_dma_sh);
   1372 }
   1373 
   1374 /*
   1375  * Allocate a keep warm page.
   1376  */
   1377 static int
   1378 iwh_alloc_kw(iwh_sc_t *sc)
   1379 {
   1380 #ifdef	DEBUG
   1381 	iwh_dma_t *dma_p;
   1382 #endif
   1383 	int err = DDI_FAILURE;
   1384 
   1385 	/*
   1386 	 * must be aligned on a 4K-page boundary
   1387 	 */
   1388 	err = iwh_alloc_dma_mem(sc, IWH_KW_SIZE,
   1389 	    &kw_dma_attr, &iwh_dma_descattr,
   1390 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1391 	    &sc->sc_dma_kw);
   1392 	if (err != DDI_SUCCESS) {
   1393 		goto fail;
   1394 	}
   1395 
   1396 #ifdef	DEBUG
   1397 	dma_p = &sc->sc_dma_kw;
   1398 #endif
   1399 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_kw(): "
   1400 	    "kw[ncookies:%d addr:%lx size:%lx]\n",
   1401 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1402 	    dma_p->cookie.dmac_size));
   1403 
   1404 	return (err);
   1405 
   1406 fail:
   1407 	iwh_free_kw(sc);
   1408 	return (err);
   1409 }
   1410 
   1411 static void
   1412 iwh_free_kw(iwh_sc_t *sc)
   1413 {
   1414 	iwh_free_dma_mem(&sc->sc_dma_kw);
   1415 }
   1416 
   1417 /*
   1418  * initialize RX ring buffers
   1419  */
   1420 static int
   1421 iwh_alloc_rx_ring(iwh_sc_t *sc)
   1422 {
   1423 	iwh_rx_ring_t *ring;
   1424 	iwh_rx_data_t *data;
   1425 #ifdef	DEBUG
   1426 	iwh_dma_t *dma_p;
   1427 #endif
   1428 	int i, err = DDI_FAILURE;
   1429 
   1430 	ring = &sc->sc_rxq;
   1431 	ring->cur = 0;
   1432 
   1433 	/*
   1434 	 * allocate RX description ring buffer
   1435 	 */
   1436 	err = iwh_alloc_dma_mem(sc, RX_QUEUE_SIZE * sizeof (uint32_t),
   1437 	    &ring_desc_dma_attr, &iwh_dma_descattr,
   1438 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1439 	    &ring->dma_desc);
   1440 	if (err != DDI_SUCCESS) {
   1441 		IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_rx_ring(): "
   1442 		    "dma alloc rx ring desc "
   1443 		    "failed\n"));
   1444 		goto fail;
   1445 	}
   1446 
   1447 	ring->desc = (uint32_t *)ring->dma_desc.mem_va;
   1448 #ifdef	DEBUG
   1449 	dma_p = &ring->dma_desc;
   1450 #endif
   1451 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_rx_ring(): "
   1452 	    "rx bd[ncookies:%d addr:%lx size:%lx]\n",
   1453 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1454 	    dma_p->cookie.dmac_size));
   1455 
   1456 	/*
   1457 	 * Allocate Rx frame buffers.
   1458 	 */
   1459 	for (i = 0; i < RX_QUEUE_SIZE; i++) {
   1460 		data = &ring->data[i];
   1461 		err = iwh_alloc_dma_mem(sc, sc->sc_dmabuf_sz,
   1462 		    &rx_buffer_dma_attr, &iwh_dma_accattr,
   1463 		    DDI_DMA_READ | DDI_DMA_STREAMING,
   1464 		    &data->dma_data);
   1465 		if (err != DDI_SUCCESS) {
   1466 			IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_rx_ring(): "
   1467 			    "dma alloc rx ring "
   1468 			    "buf[%d] failed\n", i));
   1469 			goto fail;
   1470 		}
   1471 		/*
   1472 		 * the physical address bit [8-36] are used,
   1473 		 * instead of bit [0-31] in 3945.
   1474 		 */
   1475 		ring->desc[i] = (uint32_t)
   1476 		    (data->dma_data.cookie.dmac_address >> 8);
   1477 	}
   1478 
   1479 #ifdef	DEBUG
   1480 	dma_p = &ring->data[0].dma_data;
   1481 #endif
   1482 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_rx_ring(): "
   1483 	    "rx buffer[0][ncookies:%d addr:%lx "
   1484 	    "size:%lx]\n",
   1485 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1486 	    dma_p->cookie.dmac_size));
   1487 
   1488 	IWH_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
   1489 
   1490 	return (err);
   1491 
   1492 fail:
   1493 	iwh_free_rx_ring(sc);
   1494 	return (err);
   1495 }
   1496 
   1497 /*
   1498  * disable RX ring
   1499  */
   1500 static void
   1501 iwh_reset_rx_ring(iwh_sc_t *sc)
   1502 {
   1503 	int n;
   1504 
   1505 	iwh_mac_access_enter(sc);
   1506 	IWH_WRITE(sc, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
   1507 	for (n = 0; n < 2000; n++) {
   1508 		if (IWH_READ(sc, FH_MEM_RSSR_RX_STATUS_REG) & (1 << 24)) {
   1509 			break;
   1510 		}
   1511 		DELAY(1000);
   1512 	}
   1513 #ifdef DEBUG
   1514 	if (2000 == n) {
   1515 		IWH_DBG((IWH_DEBUG_DMA, "iwh_reset_rx_ring(): "
   1516 		    "timeout resetting Rx ring\n"));
   1517 	}
   1518 #endif
   1519 	iwh_mac_access_exit(sc);
   1520 
   1521 	sc->sc_rxq.cur = 0;
   1522 }
   1523 
   1524 static void
   1525 iwh_free_rx_ring(iwh_sc_t *sc)
   1526 {
   1527 	int i;
   1528 
   1529 	for (i = 0; i < RX_QUEUE_SIZE; i++) {
   1530 		if (sc->sc_rxq.data[i].dma_data.dma_hdl) {
   1531 			IWH_DMA_SYNC(sc->sc_rxq.data[i].dma_data,
   1532 			    DDI_DMA_SYNC_FORCPU);
   1533 		}
   1534 
   1535 		iwh_free_dma_mem(&sc->sc_rxq.data[i].dma_data);
   1536 	}
   1537 
   1538 	if (sc->sc_rxq.dma_desc.dma_hdl) {
   1539 		IWH_DMA_SYNC(sc->sc_rxq.dma_desc, DDI_DMA_SYNC_FORDEV);
   1540 	}
   1541 
   1542 	iwh_free_dma_mem(&sc->sc_rxq.dma_desc);
   1543 }
   1544 
   1545 /*
   1546  * initialize TX ring buffers
   1547  */
   1548 static int
   1549 iwh_alloc_tx_ring(iwh_sc_t *sc, iwh_tx_ring_t *ring,
   1550     int slots, int qid)
   1551 {
   1552 	iwh_tx_data_t *data;
   1553 	iwh_tx_desc_t *desc_h;
   1554 	uint32_t paddr_desc_h;
   1555 	iwh_cmd_t *cmd_h;
   1556 	uint32_t paddr_cmd_h;
   1557 #ifdef	DEBUG
   1558 	iwh_dma_t *dma_p;
   1559 #endif
   1560 	int i, err = DDI_FAILURE;
   1561 
   1562 	ring->qid = qid;
   1563 	ring->count = TFD_QUEUE_SIZE_MAX;
   1564 	ring->window = slots;
   1565 	ring->queued = 0;
   1566 	ring->cur = 0;
   1567 	ring->desc_cur = 0;
   1568 
   1569 	/*
   1570 	 * allocate buffer for TX descriptor ring
   1571 	 */
   1572 	err = iwh_alloc_dma_mem(sc,
   1573 	    TFD_QUEUE_SIZE_MAX * sizeof (iwh_tx_desc_t),
   1574 	    &ring_desc_dma_attr, &iwh_dma_descattr,
   1575 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1576 	    &ring->dma_desc);
   1577 	if (err != DDI_SUCCESS) {
   1578 		IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1579 		    "dma alloc tx ring desc[%d] "
   1580 		    "failed\n", qid));
   1581 		goto fail;
   1582 	}
   1583 
   1584 #ifdef	DEBUG
   1585 	dma_p = &ring->dma_desc;
   1586 #endif
   1587 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1588 	    "tx bd[ncookies:%d addr:%lx size:%lx]\n",
   1589 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1590 	    dma_p->cookie.dmac_size));
   1591 
   1592 	desc_h = (iwh_tx_desc_t *)ring->dma_desc.mem_va;
   1593 	paddr_desc_h = ring->dma_desc.cookie.dmac_address;
   1594 
   1595 	/*
   1596 	 * allocate buffer for ucode command
   1597 	 */
   1598 	err = iwh_alloc_dma_mem(sc,
   1599 	    TFD_QUEUE_SIZE_MAX * sizeof (iwh_cmd_t),
   1600 	    &cmd_dma_attr, &iwh_dma_accattr,
   1601 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT,
   1602 	    &ring->dma_cmd);
   1603 	if (err != DDI_SUCCESS) {
   1604 		IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1605 		    "dma alloc tx ring cmd[%d]"
   1606 		    " failed\n", qid));
   1607 		goto fail;
   1608 	}
   1609 
   1610 #ifdef	DEBUG
   1611 	dma_p = &ring->dma_cmd;
   1612 #endif
   1613 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1614 	    "tx cmd[ncookies:%d addr:%lx size:%lx]\n",
   1615 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1616 	    dma_p->cookie.dmac_size));
   1617 
   1618 	cmd_h = (iwh_cmd_t *)ring->dma_cmd.mem_va;
   1619 	paddr_cmd_h = ring->dma_cmd.cookie.dmac_address;
   1620 
   1621 	/*
   1622 	 * Allocate Tx frame buffers.
   1623 	 */
   1624 	ring->data = kmem_zalloc(sizeof (iwh_tx_data_t) * TFD_QUEUE_SIZE_MAX,
   1625 	    KM_NOSLEEP);
   1626 	if (NULL == ring->data) {
   1627 		IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1628 		    "could not allocate "
   1629 		    "tx data slots\n"));
   1630 		goto fail;
   1631 	}
   1632 
   1633 	for (i = 0; i < TFD_QUEUE_SIZE_MAX; i++) {
   1634 		data = &ring->data[i];
   1635 		err = iwh_alloc_dma_mem(sc, sc->sc_dmabuf_sz,
   1636 		    &tx_buffer_dma_attr, &iwh_dma_accattr,
   1637 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
   1638 		    &data->dma_data);
   1639 		if (err != DDI_SUCCESS) {
   1640 			IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1641 			    "dma alloc tx "
   1642 			    "ring buf[%d] failed\n", i));
   1643 			goto fail;
   1644 		}
   1645 
   1646 		data->desc = desc_h + i;
   1647 		data->paddr_desc = paddr_desc_h +
   1648 		    _PTRDIFF(data->desc, desc_h);
   1649 		data->cmd = cmd_h +  i;
   1650 		data->paddr_cmd = paddr_cmd_h +
   1651 		    _PTRDIFF(data->cmd, cmd_h);
   1652 	}
   1653 #ifdef	DEBUG
   1654 	dma_p = &ring->data[0].dma_data;
   1655 #endif
   1656 	IWH_DBG((IWH_DEBUG_DMA, "iwh_alloc_tx_ring(): "
   1657 	    "tx buffer[0][ncookies:%d addr:%lx "
   1658 	    "size:%lx]\n",
   1659 	    dma_p->ncookies, dma_p->cookie.dmac_address,
   1660 	    dma_p->cookie.dmac_size));
   1661 
   1662 	return (err);
   1663 
   1664 fail:
   1665 	iwh_free_tx_ring(ring);
   1666 
   1667 	return (err);
   1668 }
   1669 
   1670 /*
   1671  * disable TX ring
   1672  */
   1673 static void
   1674 iwh_reset_tx_ring(iwh_sc_t *sc, iwh_tx_ring_t *ring)
   1675 {
   1676 	iwh_tx_data_t *data;
   1677 	int i, n;
   1678 
   1679 	iwh_mac_access_enter(sc);
   1680 
   1681 	IWH_WRITE(sc, IWH_FH_TCSR_CHNL_TX_CONFIG_REG(ring->qid), 0);
   1682 	for (n = 0; n < 200; n++) {
   1683 		if (IWH_READ(sc, IWH_FH_TSSR_TX_STATUS_REG) &
   1684 		    IWH_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ring->qid)) {
   1685 			break;
   1686 		}
   1687 		DELAY(10);
   1688 	}
   1689 
   1690 #ifdef	DEBUG
   1691 	if (200 == n) {
   1692 		IWH_DBG((IWH_DEBUG_DMA, "iwh_reset_tx_ring(): "
   1693 		    "timeout reset tx ring %d\n",
   1694 		    ring->qid));
   1695 	}
   1696 #endif
   1697 
   1698 	iwh_mac_access_exit(sc);
   1699 
   1700 	/*
   1701 	 * by pass, if it's quiesce
   1702 	 */
   1703 	if (!(sc->sc_flags & IWH_F_QUIESCED)) {
   1704 		for (i = 0; i < ring->count; i++) {
   1705 			data = &ring->data[i];
   1706 			IWH_DMA_SYNC(data->dma_data, DDI_DMA_SYNC_FORDEV);
   1707 		}
   1708 	}
   1709 
   1710 	ring->queued = 0;
   1711 	ring->cur = 0;
   1712 	ring->desc_cur = 0;
   1713 }
   1714 
   1715 static void
   1716 iwh_free_tx_ring(iwh_tx_ring_t *ring)
   1717 {
   1718 	int i;
   1719 
   1720 	if (ring->dma_desc.dma_hdl != NULL) {
   1721 		IWH_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
   1722 	}
   1723 	iwh_free_dma_mem(&ring->dma_desc);
   1724 
   1725 	if (ring->dma_cmd.dma_hdl != NULL) {
   1726 		IWH_DMA_SYNC(ring->dma_cmd, DDI_DMA_SYNC_FORDEV);
   1727 	}
   1728 	iwh_free_dma_mem(&ring->dma_cmd);
   1729 
   1730 	if (ring->data != NULL) {
   1731 		for (i = 0; i < ring->count; i++) {
   1732 			if (ring->data[i].dma_data.dma_hdl) {
   1733 				IWH_DMA_SYNC(ring->data[i].dma_data,
   1734 				    DDI_DMA_SYNC_FORDEV);
   1735 			}
   1736 			iwh_free_dma_mem(&ring->data[i].dma_data);
   1737 		}
   1738 		kmem_free(ring->data, ring->count * sizeof (iwh_tx_data_t));
   1739 	}
   1740 }
   1741 
   1742 /*
   1743  * initialize TX and RX ring
   1744  */
   1745 static int
   1746 iwh_ring_init(iwh_sc_t *sc)
   1747 {
   1748 	int i, err = DDI_FAILURE;
   1749 
   1750 	for (i = 0; i < IWH_NUM_QUEUES; i++) {
   1751 		if (IWH_CMD_QUEUE_NUM == i) {
   1752 			continue;
   1753 		}
   1754 
   1755 		err = iwh_alloc_tx_ring(sc, &sc->sc_txq[i], TFD_TX_CMD_SLOTS,
   1756 		    i);
   1757 		if (err != DDI_SUCCESS) {
   1758 			goto fail;
   1759 		}
   1760 	}
   1761 
   1762 	/*
   1763 	 * initialize command queue
   1764 	 */
   1765 	err = iwh_alloc_tx_ring(sc, &sc->sc_txq[IWH_CMD_QUEUE_NUM],
   1766 	    TFD_CMD_SLOTS, IWH_CMD_QUEUE_NUM);
   1767 	if (err != DDI_SUCCESS) {
   1768 		goto fail;
   1769 	}
   1770 
   1771 	err = iwh_alloc_rx_ring(sc);
   1772 	if (err != DDI_SUCCESS) {
   1773 		goto fail;
   1774 	}
   1775 
   1776 fail:
   1777 	return (err);
   1778 }
   1779 
   1780 static void
   1781 iwh_ring_free(iwh_sc_t *sc)
   1782 {
   1783 	int i = IWH_NUM_QUEUES;
   1784 
   1785 	iwh_free_rx_ring(sc);
   1786 	while (--i >= 0) {
   1787 		iwh_free_tx_ring(&sc->sc_txq[i]);
   1788 	}
   1789 }
   1790 
   1791 /* ARGSUSED */
   1792 static ieee80211_node_t *
   1793 iwh_node_alloc(ieee80211com_t *ic)
   1794 {
   1795 	iwh_amrr_t *amrr;
   1796 
   1797 	amrr = kmem_zalloc(sizeof (iwh_amrr_t), KM_SLEEP);
   1798 	if (NULL == amrr) {
   1799 		cmn_err(CE_WARN, "iwh_node_alloc(): "
   1800 		    "failed to allocate memory for amrr structure\n");
   1801 		return (NULL);
   1802 	}
   1803 
   1804 	iwh_amrr_init(amrr);
   1805 
   1806 	return (&amrr->in);
   1807 }
   1808 
   1809 static void
   1810 iwh_node_free(ieee80211_node_t *in)
   1811 {
   1812 	ieee80211com_t *ic;
   1813 
   1814 	if ((NULL == in) ||
   1815 	    (NULL == in->in_ic)) {
   1816 		cmn_err(CE_WARN, "iwh_node_free() "
   1817 		    "Got a NULL point from Net80211 module\n");
   1818 		return;
   1819 	}
   1820 	ic = in->in_ic;
   1821 
   1822 	if (ic->ic_node_cleanup != NULL) {
   1823 		ic->ic_node_cleanup(in);
   1824 	}
   1825 
   1826 	if (in->in_wpa_ie != NULL) {
   1827 		ieee80211_free(in->in_wpa_ie);
   1828 	}
   1829 
   1830 	if (in->in_wme_ie != NULL) {
   1831 		ieee80211_free(in->in_wme_ie);
   1832 	}
   1833 
   1834 	if (in->in_htcap_ie != NULL) {
   1835 		ieee80211_free(in->in_htcap_ie);
   1836 	}
   1837 
   1838 	kmem_free(in, sizeof (iwh_amrr_t));
   1839 }
   1840 
   1841 /*
   1842  * change station's state. this function will be invoked by 80211 module
   1843  * when need to change staton's state.
   1844  */
   1845 static int
   1846 iwh_newstate(ieee80211com_t *ic, enum ieee80211_state nstate, int arg)
   1847 {
   1848 	iwh_sc_t *sc;
   1849 	ieee80211_node_t *in;
   1850 	enum ieee80211_state ostate;
   1851 	iwh_add_sta_t node;
   1852 	iwh_amrr_t *amrr;
   1853 	uint8_t r;
   1854 	int i, err = IWH_FAIL;
   1855 
   1856 	if (NULL == ic) {
   1857 		return (err);
   1858 	}
   1859 	sc = (iwh_sc_t *)ic;
   1860 	in = ic->ic_bss;
   1861 	ostate = ic->ic_state;
   1862 
   1863 	mutex_enter(&sc->sc_glock);
   1864 
   1865 	switch (nstate) {
   1866 	case IEEE80211_S_SCAN:
   1867 		switch (ostate) {
   1868 		case IEEE80211_S_INIT:
   1869 			atomic_or_32(&sc->sc_flags, IWH_F_SCANNING);
   1870 			iwh_set_led(sc, 2, 10, 2);
   1871 
   1872 			/*
   1873 			 * clear association to receive beacons from
   1874 			 * all BSS'es
   1875 			 */
   1876 			sc->sc_config.assoc_id = 0;
   1877 			sc->sc_config.filter_flags &=
   1878 			    ~LE_32(RXON_FILTER_ASSOC_MSK);
   1879 
   1880 			IWH_DBG((IWH_DEBUG_80211, "iwh_newstate(): "
   1881 			    "config chan %d "
   1882 			    "flags %x filter_flags %x\n",
   1883 			    LE_16(sc->sc_config.chan),
   1884 			    LE_32(sc->sc_config.flags),
   1885 			    LE_32(sc->sc_config.filter_flags)));
   1886 
   1887 			err = iwh_cmd(sc, REPLY_RXON, &sc->sc_config,
   1888 			    sizeof (iwh_rxon_cmd_t), 1);
   1889 			if (err != IWH_SUCCESS) {
   1890 				cmn_err(CE_WARN, "iwh_newstate(): "
   1891 				    "could not clear association\n");
   1892 				atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   1893 				mutex_exit(&sc->sc_glock);
   1894 				return (err);
   1895 			}
   1896 
   1897 			/*
   1898 			 * add broadcast node to send probe request
   1899 			 */
   1900 			(void) memset(&node, 0, sizeof (node));
   1901 			(void) memset(&node.sta.addr, 0xff, IEEE80211_ADDR_LEN);
   1902 			node.sta.sta_id = IWH_BROADCAST_ID;
   1903 			err = iwh_cmd(sc, REPLY_ADD_STA, &node,
   1904 			    sizeof (node), 1);
   1905 			if (err != IWH_SUCCESS) {
   1906 				cmn_err(CE_WARN, "iwh_newstate(): "
   1907 				    "could not add broadcast node\n");
   1908 				atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   1909 				mutex_exit(&sc->sc_glock);
   1910 				return (err);
   1911 			}
   1912 			break;
   1913 		case IEEE80211_S_SCAN:
   1914 			mutex_exit(&sc->sc_glock);
   1915 			/* step to next channel before actual FW scan */
   1916 			err = sc->sc_newstate(ic, nstate, arg);
   1917 			mutex_enter(&sc->sc_glock);
   1918 			if ((err != 0) || ((err = iwh_scan(sc)) != 0)) {
   1919 				cmn_err(CE_WARN, "iwh_newstate(): "
   1920 				    "could not initiate scan\n");
   1921 				atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   1922 				ieee80211_cancel_scan(ic);
   1923 			}
   1924 			mutex_exit(&sc->sc_glock);
   1925 			return (err);
   1926 		default:
   1927 			break;
   1928 		}
   1929 		sc->sc_clk = 0;
   1930 		break;
   1931 
   1932 	case IEEE80211_S_AUTH:
   1933 		if (ostate == IEEE80211_S_SCAN) {
   1934 			atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   1935 		}
   1936 
   1937 		/*
   1938 		 * reset state to handle reassociations correctly
   1939 		 */
   1940 		sc->sc_config.assoc_id = 0;
   1941 		sc->sc_config.filter_flags &= ~LE_32(RXON_FILTER_ASSOC_MSK);
   1942 
   1943 		/*
   1944 		 * before sending authentication and association request frame,
   1945 		 * we need do something in the hardware, such as setting the
   1946 		 * channel same to the target AP...
   1947 		 */
   1948 		if ((err = iwh_hw_set_before_auth(sc)) != 0) {
   1949 			IWH_DBG((IWH_DEBUG_80211, "iwh_newstate(): "
   1950 			    "could not send authentication request\n"));
   1951 			mutex_exit(&sc->sc_glock);
   1952 			return (err);
   1953 		}
   1954 		break;
   1955 
   1956 	case IEEE80211_S_RUN:
   1957 		if (ostate == IEEE80211_S_SCAN) {
   1958 			atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   1959 		}
   1960 
   1961 		if (IEEE80211_M_MONITOR == ic->ic_opmode) {
   1962 			/*
   1963 			 * let LED blink when monitoring
   1964 			 */
   1965 			iwh_set_led(sc, 2, 10, 10);
   1966 			break;
   1967 		}
   1968 
   1969 		IWH_DBG((IWH_DEBUG_80211, "iwh_newstate(): "
   1970 		    "associated.\n"));
   1971 
   1972 		err = iwh_run_state_config(sc);
   1973 		if (err != IWH_SUCCESS) {
   1974 			cmn_err(CE_WARN, "iwh_newstate(): "
   1975 			    "failed to set up association\n");
   1976 			mutex_exit(&sc->sc_glock);
   1977 			return (err);
   1978 		}
   1979 
   1980 		/*
   1981 		 * start automatic rate control
   1982 		 */
   1983 		if ((in->in_flags & IEEE80211_NODE_HT) &&
   1984 		    (sc->sc_ht_conf.ht_support) &&
   1985 		    (in->in_htrates.rs_nrates > 0) &&
   1986 		    (in->in_htrates.rs_nrates <= IEEE80211_HTRATE_MAXSIZE)) {
   1987 			amrr = (iwh_amrr_t *)in;
   1988 
   1989 			for (i = in->in_htrates.rs_nrates - 1; i > 0; i--) {
   1990 
   1991 				r = in->in_htrates.rs_rates[i] &
   1992 				    IEEE80211_RATE_VAL;
   1993 				if ((r != 0) && (r <= 0xd) &&
   1994 				    (sc->sc_ht_conf.tx_support_mcs[r/8] &
   1995 				    (1 << (r%8)))) {
   1996 					amrr->ht_mcs_idx = r;
   1997 					atomic_or_32(&sc->sc_flags,
   1998 					    IWH_F_RATE_AUTO_CTL);
   1999 					break;
   2000 				}
   2001 			}
   2002 		} else {
   2003 			if (IEEE80211_FIXED_RATE_NONE == ic->ic_fixed_rate) {
   2004 				atomic_or_32(&sc->sc_flags,
   2005 				    IWH_F_RATE_AUTO_CTL);
   2006 
   2007 				/*
   2008 				 * set rate to some reasonable initial value
   2009 				 */
   2010 				i = in->in_rates.ir_nrates - 1;
   2011 				while (i > 0 && IEEE80211_RATE(i) > 72) {
   2012 					i--;
   2013 				}
   2014 				in->in_txrate = i;
   2015 
   2016 			} else {
   2017 				atomic_and_32(&sc->sc_flags,
   2018 				    ~IWH_F_RATE_AUTO_CTL);
   2019 			}
   2020 		}
   2021 
   2022 		/*
   2023 		 * set LED on after associated
   2024 		 */
   2025 		iwh_set_led(sc, 2, 0, 1);
   2026 		break;
   2027 
   2028 	case IEEE80211_S_INIT:
   2029 		if (ostate == IEEE80211_S_SCAN) {
   2030 			atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   2031 		}
   2032 		/*
   2033 		 * set LED off after init
   2034 		 */
   2035 		iwh_set_led(sc, 2, 1, 0);
   2036 		break;
   2037 
   2038 	case IEEE80211_S_ASSOC:
   2039 		if (ostate == IEEE80211_S_SCAN) {
   2040 			atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   2041 		}
   2042 		break;
   2043 	}
   2044 
   2045 	mutex_exit(&sc->sc_glock);
   2046 
   2047 	return (sc->sc_newstate(ic, nstate, arg));
   2048 }
   2049 
   2050 /*
   2051  * exclusive access to mac begin.
   2052  */
   2053 static void
   2054 iwh_mac_access_enter(iwh_sc_t *sc)
   2055 {
   2056 	uint32_t tmp;
   2057 	int n;
   2058 
   2059 	tmp = IWH_READ(sc, CSR_GP_CNTRL);
   2060 	IWH_WRITE(sc, CSR_GP_CNTRL,
   2061 	    tmp | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
   2062 
   2063 	/*
   2064 	 * wait until we succeed
   2065 	 */
   2066 	for (n = 0; n < 1000; n++) {
   2067 		if ((IWH_READ(sc, CSR_GP_CNTRL) &
   2068 		    (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
   2069 		    CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP)) ==
   2070 		    CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN) {
   2071 			break;
   2072 		}
   2073 		DELAY(10);
   2074 	}
   2075 
   2076 #ifdef	DEBUG
   2077 	if (1000 == n) {
   2078 		IWH_DBG((IWH_DEBUG_PIO, "iwh_mac_access_enter(): "
   2079 		    "could not lock memory\n"));
   2080 	}
   2081 #endif
   2082 }
   2083 
   2084 /*
   2085  * exclusive access to mac end.
   2086  */
   2087 static void
   2088 iwh_mac_access_exit(iwh_sc_t *sc)
   2089 {
   2090 	uint32_t tmp = IWH_READ(sc, CSR_GP_CNTRL);
   2091 	IWH_WRITE(sc, CSR_GP_CNTRL,
   2092 	    tmp & ~CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
   2093 }
   2094 
   2095 /*
   2096  * this function defined here for future use.
   2097  * static uint32_t
   2098  * iwh_mem_read(iwh_sc_t *sc, uint32_t addr)
   2099  * {
   2100  * 	IWH_WRITE(sc, HBUS_TARG_MEM_RADDR, addr);
   2101  * 	return (IWH_READ(sc, HBUS_TARG_MEM_RDAT));
   2102  * }
   2103  */
   2104 
   2105 /*
   2106  * write mac memory
   2107  */
   2108 static void
   2109 iwh_mem_write(iwh_sc_t *sc, uint32_t addr, uint32_t data)
   2110 {
   2111 	IWH_WRITE(sc, HBUS_TARG_MEM_WADDR, addr);
   2112 	IWH_WRITE(sc, HBUS_TARG_MEM_WDAT, data);
   2113 }
   2114 
   2115 /*
   2116  * read mac register
   2117  */
   2118 static uint32_t
   2119 iwh_reg_read(iwh_sc_t *sc, uint32_t addr)
   2120 {
   2121 	IWH_WRITE(sc, HBUS_TARG_PRPH_RADDR, addr | (3 << 24));
   2122 	return (IWH_READ(sc, HBUS_TARG_PRPH_RDAT));
   2123 }
   2124 
   2125 /*
   2126  * write mac register
   2127  */
   2128 static void
   2129 iwh_reg_write(iwh_sc_t *sc, uint32_t addr, uint32_t data)
   2130 {
   2131 	IWH_WRITE(sc, HBUS_TARG_PRPH_WADDR, addr | (3 << 24));
   2132 	IWH_WRITE(sc, HBUS_TARG_PRPH_WDAT, data);
   2133 }
   2134 
   2135 
   2136 /*
   2137  * steps of loading ucode:
   2138  * load init ucode=>init alive=>calibrate=>
   2139  * receive calibration result=>reinitialize NIC=>
   2140  * load runtime ucode=>runtime alive=>
   2141  * send calibration result=>running.
   2142  */
   2143 static int
   2144 iwh_load_init_firmware(iwh_sc_t *sc)
   2145 {
   2146 	int err = IWH_FAIL;
   2147 	clock_t	clk;
   2148 
   2149 	atomic_and_32(&sc->sc_flags, ~IWH_F_PUT_SEG);
   2150 
   2151 	/*
   2152 	 * load init_text section of uCode to hardware
   2153 	 */
   2154 	err = iwh_put_seg_fw(sc, sc->sc_dma_fw_init_text.cookie.dmac_address,
   2155 	    RTC_INST_LOWER_BOUND, sc->sc_dma_fw_init_text.cookie.dmac_size);
   2156 	if (err != IWH_SUCCESS) {
   2157 		cmn_err(CE_WARN, "iwh_load_init_firmware(): "
   2158 		    "failed to write init uCode.\n");
   2159 		return (err);
   2160 	}
   2161 
   2162 	clk = ddi_get_lbolt() + drv_usectohz(1000000);
   2163 
   2164 	/*
   2165 	 * wait loading init_text until completed or timeout
   2166 	 */
   2167 	while (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2168 		if (cv_timedwait(&sc->sc_put_seg_cv, &sc->sc_glock, clk) < 0) {
   2169 			break;
   2170 		}
   2171 	}
   2172 
   2173 	if (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2174 		cmn_err(CE_WARN, "iwh_load_init_firmware(): "
   2175 		    "timeout waiting for init uCode load.\n");
   2176 		return (IWH_FAIL);
   2177 	}
   2178 
   2179 	atomic_and_32(&sc->sc_flags, ~IWH_F_PUT_SEG);
   2180 
   2181 	/*
   2182 	 * load init_data section of uCode to hardware
   2183 	 */
   2184 	err = iwh_put_seg_fw(sc, sc->sc_dma_fw_init_data.cookie.dmac_address,
   2185 	    RTC_DATA_LOWER_BOUND, sc->sc_dma_fw_init_data.cookie.dmac_size);
   2186 	if (err != IWH_SUCCESS) {
   2187 		cmn_err(CE_WARN, "iwh_load_init_firmware(): "
   2188 		    "failed to write init_data uCode.\n");
   2189 		return (err);
   2190 	}
   2191 
   2192 	clk = ddi_get_lbolt() + drv_usectohz(1000000);
   2193 
   2194 	/*
   2195 	 * wait loading init_data until completed or timeout
   2196 	 */
   2197 	while (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2198 		if (cv_timedwait(&sc->sc_put_seg_cv, &sc->sc_glock, clk) < 0) {
   2199 			break;
   2200 		}
   2201 	}
   2202 
   2203 	if (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2204 		cmn_err(CE_WARN, "iwh_load_init_firmware(): "
   2205 		    "timeout waiting for init_data uCode load.\n");
   2206 		return (IWH_FAIL);
   2207 	}
   2208 
   2209 	atomic_and_32(&sc->sc_flags, ~IWH_F_PUT_SEG);
   2210 
   2211 	return (err);
   2212 }
   2213 
   2214 static int
   2215 iwh_load_run_firmware(iwh_sc_t *sc)
   2216 {
   2217 	int err = IWH_FAIL;
   2218 	clock_t	clk;
   2219 
   2220 	atomic_and_32(&sc->sc_flags, ~IWH_F_PUT_SEG);
   2221 
   2222 	/*
   2223 	 * load init_text section of uCode to hardware
   2224 	 */
   2225 	err = iwh_put_seg_fw(sc, sc->sc_dma_fw_text.cookie.dmac_address,
   2226 	    RTC_INST_LOWER_BOUND, sc->sc_dma_fw_text.cookie.dmac_size);
   2227 	if (err != IWH_SUCCESS) {
   2228 		cmn_err(CE_WARN, "iwh_load_run_firmware(): "
   2229 		    "failed to write run uCode.\n");
   2230 		return (err);
   2231 	}
   2232 
   2233 	clk = ddi_get_lbolt() + drv_usectohz(1000000);
   2234 
   2235 	/*
   2236 	 * wait loading run_text until completed or timeout
   2237 	 */
   2238 	while (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2239 		if (cv_timedwait(&sc->sc_put_seg_cv, &sc->sc_glock, clk) < 0) {
   2240 			break;
   2241 		}
   2242 	}
   2243 
   2244 	if (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2245 		cmn_err(CE_WARN, "iwh_load_run_firmware(): "
   2246 		    "timeout waiting for run uCode load.\n");
   2247 		return (IWH_FAIL);
   2248 	}
   2249 
   2250 	atomic_and_32(&sc->sc_flags, ~IWH_F_PUT_SEG);
   2251 
   2252 	/*
   2253 	 * load run_data section of uCode to hardware
   2254 	 */
   2255 	err = iwh_put_seg_fw(sc, sc->sc_dma_fw_data_bak.cookie.dmac_address,
   2256 	    RTC_DATA_LOWER_BOUND, sc->sc_dma_fw_data.cookie.dmac_size);
   2257 	if (err != IWH_SUCCESS) {
   2258 		cmn_err(CE_WARN, "iwh_load_run_firmware(): "
   2259 		    "failed to write run_data uCode.\n");
   2260 		return (err);
   2261 	}
   2262 
   2263 	clk = ddi_get_lbolt() + drv_usectohz(1000000);
   2264 
   2265 	/*
   2266 	 * wait loading run_data until completed or timeout
   2267 	 */
   2268 	while (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2269 		if (cv_timedwait(&sc->sc_put_seg_cv, &sc->sc_glock, clk) < 0) {
   2270 			break;
   2271 		}
   2272 	}
   2273 
   2274 	if (!(sc->sc_flags & IWH_F_PUT_SEG)) {
   2275 		cmn_err(CE_WARN, "iwh_load_run_firmware(): "
   2276 		    "timeout waiting for run_data uCode load.\n");
   2277 		return (IWH_FAIL);
   2278 	}
   2279 
   2280 	atomic_and_32(&sc->sc_flags, ~IWH_F_PUT_SEG);
   2281 
   2282 	return (err);
   2283 }
   2284 
   2285 /*
   2286  * this function will be invoked to receive phy information
   2287  * when a frame is received.
   2288  */
   2289 static void
   2290 iwh_rx_phy_intr(iwh_sc_t *sc, iwh_rx_desc_t *desc)
   2291 {
   2292 
   2293 	sc->sc_rx_phy_res.flag = 1;
   2294 
   2295 	bcopy((uint8_t *)(desc + 1), sc->sc_rx_phy_res.buf,
   2296 	    sizeof (iwh_rx_phy_res_t));
   2297 }
   2298 
   2299 /*
   2300  * this function will be invoked to receive body of frame when
   2301  * a frame is received.
   2302  */
   2303 static void
   2304 iwh_rx_mpdu_intr(iwh_sc_t *sc, iwh_rx_desc_t *desc)
   2305 {
   2306 	ieee80211com_t *ic = &sc->sc_ic;
   2307 #ifdef	DEBUG
   2308 	iwh_rx_ring_t *ring = &sc->sc_rxq;
   2309 #endif
   2310 	struct ieee80211_frame *wh;
   2311 	struct iwh_rx_non_cfg_phy *phyinfo;
   2312 	struct iwh_rx_mpdu_body_size *mpdu_size;
   2313 	mblk_t *mp;
   2314 	int16_t t;
   2315 	uint16_t len, rssi, agc;
   2316 	uint32_t temp, crc, *tail;
   2317 	uint32_t arssi, brssi, crssi, mrssi;
   2318 	iwh_rx_phy_res_t *stat;
   2319 	ieee80211_node_t *in;
   2320 
   2321 	/*
   2322 	 * assuming not 11n here. cope with 11n in phase-II
   2323 	 */
   2324 	mpdu_size = (struct iwh_rx_mpdu_body_size *)(desc + 1);
   2325 	stat = (iwh_rx_phy_res_t *)sc->sc_rx_phy_res.buf;
   2326 	if (stat->cfg_phy_cnt > 20) {
   2327 		return;
   2328 	}
   2329 
   2330 	phyinfo = (struct iwh_rx_non_cfg_phy *)stat->non_cfg_phy;
   2331 	temp = LE_32(phyinfo->non_cfg_phy[IWH_RX_RES_AGC_IDX]);
   2332 	agc = (temp & IWH_OFDM_AGC_MSK) >> IWH_OFDM_AGC_BIT_POS;
   2333 
   2334 	temp = LE_32(phyinfo->non_cfg_phy[IWH_RX_RES_RSSI_AB_IDX]);
   2335 	arssi = (temp & IWH_OFDM_RSSI_A_MSK) >> IWH_OFDM_RSSI_A_BIT_POS;
   2336 	brssi = (temp & IWH_OFDM_RSSI_B_MSK) >> IWH_OFDM_RSSI_B_BIT_POS;
   2337 
   2338 	temp = LE_32(phyinfo->non_cfg_phy[IWH_RX_RES_RSSI_C_IDX]);
   2339 	crssi = (temp & IWH_OFDM_RSSI_C_MSK) >> IWH_OFDM_RSSI_C_BIT_POS;
   2340 
   2341 	mrssi = MAX(arssi, brssi);
   2342 	mrssi = MAX(mrssi, crssi);
   2343 
   2344 	t = mrssi - agc - IWH_RSSI_OFFSET;
   2345 	/*
   2346 	 * convert dBm to percentage
   2347 	 */
   2348 	rssi = (100 * 75 * 75 - (-20 - t) * (15 * 75 + 62 * (-20 - t)))
   2349 	    / (75 * 75);
   2350 	if (rssi > 100) {
   2351 		rssi = 100;
   2352 	}
   2353 	if (rssi < 1) {
   2354 		rssi = 1;
   2355 	}
   2356 
   2357 	/*
   2358 	 * size of frame, not include FCS
   2359 	 */
   2360 	len = LE_16(mpdu_size->byte_count);
   2361 	tail = (uint32_t *)((uint8_t *)(desc + 1) +
   2362 	    sizeof (struct iwh_rx_mpdu_body_size) + len);
   2363 	bcopy(tail, &crc, 4);
   2364 
   2365 	IWH_DBG((IWH_DEBUG_RX, "iwh_rx_mpdu_intr(): "
   2366 	    "rx intr: idx=%d phy_len=%x len=%d "
   2367 	    "rate=%x chan=%d tstamp=%x non_cfg_phy_count=%x "
   2368 	    "cfg_phy_count=%x tail=%x", ring->cur, sizeof (*stat),
   2369 	    len, stat->rate.r.s.rate, stat->channel,
   2370 	    LE_32(stat->timestampl), stat->non_cfg_phy_cnt,
   2371 	    stat->cfg_phy_cnt, LE_32(crc)));
   2372 
   2373 	if ((len < 16) || (len > sc->sc_dmabuf_sz)) {
   2374 		IWH_DBG((IWH_DEBUG_RX, "iwh_rx_mpdu_intr(): "
   2375 		    "rx frame oversize\n"));
   2376 		return;
   2377 	}
   2378 
   2379 	/*
   2380 	 * discard Rx frames with bad CRC
   2381 	 */
   2382 	if ((LE_32(crc) &
   2383 	    (RX_RES_STATUS_NO_CRC32_ERROR | RX_RES_STATUS_NO_RXE_OVERFLOW)) !=
   2384 	    (RX_RES_STATUS_NO_CRC32_ERROR | RX_RES_STATUS_NO_RXE_OVERFLOW)) {
   2385 		IWH_DBG((IWH_DEBUG_RX, "iwh_rx_mpdu_intr(): "
   2386 		    "rx crc error tail: %x\n",
   2387 		    LE_32(crc)));
   2388 		sc->sc_rx_err++;
   2389 		return;
   2390 	}
   2391 
   2392 	wh = (struct ieee80211_frame *)
   2393 	    ((uint8_t *)(desc + 1)+ sizeof (struct iwh_rx_mpdu_body_size));
   2394 
   2395 	if (IEEE80211_FC0_SUBTYPE_ASSOC_RESP == *(uint8_t *)wh) {
   2396 		sc->sc_assoc_id = *((uint16_t *)(wh + 1) + 2);
   2397 		IWH_DBG((IWH_DEBUG_RX, "iwh_rx_mpdu_intr(): "
   2398 		    "rx : association id = %x\n",
   2399 		    sc->sc_assoc_id));
   2400 	}
   2401 
   2402 #ifdef DEBUG
   2403 	if (iwh_dbg_flags & IWH_DEBUG_RX) {
   2404 		ieee80211_dump_pkt((uint8_t *)wh, len, 0, 0);
   2405 	}
   2406 #endif
   2407 
   2408 	in = ieee80211_find_rxnode(ic, wh);
   2409 	mp = allocb(len, BPRI_MED);
   2410 	if (mp) {
   2411 		bcopy(wh, mp->b_wptr, len);
   2412 		mp->b_wptr += len;
   2413 
   2414 		/*
   2415 		 * send the frame to the 802.11 layer
   2416 		 */
   2417 		(void) ieee80211_input(ic, mp, in, rssi, 0);
   2418 	} else {
   2419 		sc->sc_rx_nobuf++;
   2420 		IWH_DBG((IWH_DEBUG_RX, "iwh_rx_mpdu_intr(): "
   2421 		    "alloc rx buf failed\n"));
   2422 	}
   2423 
   2424 	/*
   2425 	 * release node reference
   2426 	 */
   2427 	ieee80211_free_node(in);
   2428 }
   2429 
   2430 /*
   2431  * process correlative affairs after a frame is sent.
   2432  */
   2433 static void
   2434 iwh_tx_intr(iwh_sc_t *sc, iwh_rx_desc_t *desc)
   2435 {
   2436 	ieee80211com_t *ic = &sc->sc_ic;
   2437 	iwh_tx_ring_t *ring = &sc->sc_txq[desc->hdr.qid & 0x3];
   2438 	iwh_tx_stat_t *stat = (iwh_tx_stat_t *)(desc + 1);
   2439 	iwh_amrr_t *amrr;
   2440 
   2441 	if (NULL == ic->ic_bss) {
   2442 		return;
   2443 	}
   2444 
   2445 	amrr = (iwh_amrr_t *)ic->ic_bss;
   2446 
   2447 	amrr->txcnt++;
   2448 	IWH_DBG((IWH_DEBUG_RATECTL, "iwh_tx_intr(): "
   2449 	    "tx: %d cnt\n", amrr->txcnt));
   2450 
   2451 	if (stat->ntries > 0) {
   2452 		amrr->retrycnt++;
   2453 		sc->sc_tx_retries++;
   2454 		IWH_DBG((IWH_DEBUG_TX, "iwh_tx_intr(): "
   2455 		    "tx: %d retries\n",
   2456 		    sc->sc_tx_retries));
   2457 	}
   2458 
   2459 	mutex_enter(&sc->sc_mt_lock);
   2460 	sc->sc_tx_timer = 0;
   2461 	mutex_exit(&sc->sc_mt_lock);
   2462 
   2463 	mutex_enter(&sc->sc_tx_lock);
   2464 
   2465 	ring->queued--;
   2466 	if (ring->queued < 0) {
   2467 		ring->queued = 0;
   2468 	}
   2469 
   2470 	if ((sc->sc_need_reschedule) && (ring->queued <= (ring->count >> 3))) {
   2471 		sc->sc_need_reschedule = 0;
   2472 		mutex_exit(&sc->sc_tx_lock);
   2473 		mac_tx_update(ic->ic_mach);
   2474 		mutex_enter(&sc->sc_tx_lock);
   2475 	}
   2476 
   2477 	mutex_exit(&sc->sc_tx_lock);
   2478 }
   2479 
   2480 /*
   2481  * inform a given command has been executed
   2482  */
   2483 static void
   2484 iwh_cmd_intr(iwh_sc_t *sc, iwh_rx_desc_t *desc)
   2485 {
   2486 	if ((desc->hdr.qid & 7) != 4) {
   2487 		return;
   2488 	}
   2489 
   2490 	if (sc->sc_cmd_accum > 0) {
   2491 		sc->sc_cmd_accum--;
   2492 		return;
   2493 	}
   2494 
   2495 	mutex_enter(&sc->sc_glock);
   2496 
   2497 	sc->sc_cmd_flag = SC_CMD_FLG_DONE;
   2498 
   2499 	cv_signal(&sc->sc_cmd_cv);
   2500 
   2501 	mutex_exit(&sc->sc_glock);
   2502 
   2503 	IWH_DBG((IWH_DEBUG_CMD, "iwh_cmd_intr(): "
   2504 	    "qid=%x idx=%d flags=%x type=0x%x\n",
   2505 	    desc->hdr.qid, desc->hdr.idx, desc->hdr.flags,
   2506 	    desc->hdr.type));
   2507 }
   2508 
   2509 /*
   2510  * this function will be invoked when alive notification occur.
   2511  */
   2512 static void
   2513 iwh_ucode_alive(iwh_sc_t *sc, iwh_rx_desc_t *desc)
   2514 {
   2515 	uint32_t rv;
   2516 	struct iwh_calib_cfg_cmd cmd;
   2517 	struct iwh_alive_resp *ar =
   2518 	    (struct iwh_alive_resp *)(desc + 1);
   2519 	struct iwh_calib_results *res_p = &sc->sc_calib_results;
   2520 
   2521 	/*
   2522 	 * the microcontroller is ready
   2523 	 */
   2524 	IWH_DBG((IWH_DEBUG_FW, "iwh_ucode_alive(): "
   2525 	    "microcode alive notification minor: %x major: %x type: "
   2526 	    "%x subtype: %x\n",
   2527 	    ar->ucode_minor, ar->ucode_minor, ar->ver_type, ar->ver_subtype));
   2528 
   2529 #ifdef	DEBUG
   2530 	if (LE_32(ar->is_valid) != UCODE_VALID_OK) {
   2531 		IWH_DBG((IWH_DEBUG_FW, "iwh_ucode_alive(): "
   2532 		    "microcontroller initialization failed\n"));
   2533 	}
   2534 #endif
   2535 
   2536 	/*
   2537 	 * determine if init alive or runtime alive.
   2538 	 */
   2539 	if (INITIALIZE_SUBTYPE == ar->ver_subtype) {
   2540 		IWH_DBG((IWH_DEBUG_FW, "iwh_ucode_alive(): "
   2541 		    "initialization alive received.\n"));
   2542 
   2543 		bcopy(ar, &sc->sc_card_alive_init,
   2544 		    sizeof (struct iwh_init_alive_resp));
   2545 
   2546 		/*
   2547 		 * necessary configuration to NIC
   2548 		 */
   2549 		mutex_enter(&sc->sc_glock);
   2550 
   2551 		rv = iwh_alive_common(sc);
   2552 		if (rv != IWH_SUCCESS) {
   2553 			cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2554 			    "common alive process failed in init alive.\n");
   2555 			mutex_exit(&sc->sc_glock);
   2556 			return;
   2557 		}
   2558 
   2559 		(void) memset(&cmd, 0, sizeof (cmd));
   2560 
   2561 		cmd.ucd_calib_cfg.once.is_enable = IWH_CALIB_INIT_CFG_ALL;
   2562 		cmd.ucd_calib_cfg.once.start = IWH_CALIB_INIT_CFG_ALL;
   2563 		cmd.ucd_calib_cfg.once.send_res = IWH_CALIB_INIT_CFG_ALL;
   2564 		cmd.ucd_calib_cfg.flags = IWH_CALIB_INIT_CFG_ALL;
   2565 
   2566 		/*
   2567 		 * require ucode execute calibration
   2568 		 */
   2569 		rv = iwh_cmd(sc, CALIBRATION_CFG_CMD, &cmd, sizeof (cmd), 1);
   2570 		if (rv != IWH_SUCCESS) {
   2571 			cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2572 			    "failed to send calibration configure command.\n");
   2573 			mutex_exit(&sc->sc_glock);
   2574 			return;
   2575 		}
   2576 
   2577 		mutex_exit(&sc->sc_glock);
   2578 
   2579 	} else {	/* runtime alive */
   2580 
   2581 		IWH_DBG((IWH_DEBUG_FW, "iwh_ucode_alive(): "
   2582 		    "runtime alive received.\n"));
   2583 
   2584 		bcopy(ar, &sc->sc_card_alive_run,
   2585 		    sizeof (struct iwh_alive_resp));
   2586 
   2587 		mutex_enter(&sc->sc_glock);
   2588 
   2589 		/*
   2590 		 * necessary configuration to NIC
   2591 		 */
   2592 		rv = iwh_alive_common(sc);
   2593 		if (rv != IWH_SUCCESS) {
   2594 			cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2595 			    "common alive process failed in run alive.\n");
   2596 			mutex_exit(&sc->sc_glock);
   2597 			return;
   2598 		}
   2599 
   2600 		/*
   2601 		 * send the result of local oscilator calibration to uCode.
   2602 		 */
   2603 		if (res_p->lo_res != NULL) {
   2604 			rv = iwh_cmd(sc, REPLY_PHY_CALIBRATION_CMD,
   2605 			    res_p->lo_res, res_p->lo_res_len, 1);
   2606 			if (rv != IWH_SUCCESS) {
   2607 				cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2608 				    "failed to send local"
   2609 				    "oscilator calibration command.\n");
   2610 				mutex_exit(&sc->sc_glock);
   2611 				return;
   2612 			}
   2613 
   2614 			DELAY(1000);
   2615 		}
   2616 
   2617 		/*
   2618 		 * send the result of TX IQ calibration to uCode.
   2619 		 */
   2620 		if (res_p->tx_iq_res != NULL) {
   2621 			rv = iwh_cmd(sc, REPLY_PHY_CALIBRATION_CMD,
   2622 			    res_p->tx_iq_res, res_p->tx_iq_res_len, 1);
   2623 			if (rv != IWH_SUCCESS) {
   2624 				cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2625 				    "failed to send TX IQ"
   2626 				    "calibration command.\n");
   2627 				mutex_exit(&sc->sc_glock);
   2628 				return;
   2629 			}
   2630 
   2631 			DELAY(1000);
   2632 		}
   2633 
   2634 		/*
   2635 		 * sned the result of TX IQ perd calibration to uCode.
   2636 		 */
   2637 		if (res_p->tx_iq_perd_res != NULL) {
   2638 			rv = iwh_cmd(sc, REPLY_PHY_CALIBRATION_CMD,
   2639 			    res_p->tx_iq_perd_res,
   2640 			    res_p->tx_iq_perd_res_len, 1);
   2641 			if (rv != IWH_SUCCESS) {
   2642 				cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2643 				    "failed to send TX IQ perd"
   2644 				    "calibration command.\n");
   2645 				mutex_exit(&sc->sc_glock);
   2646 				return;
   2647 			}
   2648 
   2649 			DELAY(1000);
   2650 		}
   2651 
   2652 		/*
   2653 		 * send the result of DC calibration to uCode.
   2654 		 */
   2655 		if (res_p->dc_res != NULL) {
   2656 			rv = iwh_cmd(sc, REPLY_PHY_CALIBRATION_CMD,
   2657 			    res_p->dc_res,
   2658 			    res_p->dc_res_len, 1);
   2659 			if (rv != IWH_SUCCESS) {
   2660 				cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2661 				    "failed to send DC"
   2662 				    "calibration command.\n");
   2663 				mutex_exit(&sc->sc_glock);
   2664 				return;
   2665 			}
   2666 
   2667 			DELAY(1000);
   2668 		}
   2669 
   2670 		/*
   2671 		 * send the result of BASE BAND calibration to uCode.
   2672 		 */
   2673 		if (res_p->base_band_res != NULL) {
   2674 			rv = iwh_cmd(sc, REPLY_PHY_CALIBRATION_CMD,
   2675 			    res_p->base_band_res,
   2676 			    res_p->base_band_res_len, 1);
   2677 			if (rv != IWH_SUCCESS) {
   2678 				cmn_err(CE_WARN, "iwh_ucode_alive(): "
   2679 				    "failed to send BASE BAND"
   2680 				    "calibration command.\n");
   2681 				mutex_exit(&sc->sc_glock);
   2682 				return;
   2683 			}
   2684 
   2685 			DELAY(1000);
   2686 		}
   2687 
   2688 		atomic_or_32(&sc->sc_flags, IWH_F_FW_INIT);
   2689 		cv_signal(&sc->sc_ucode_cv);
   2690 
   2691 		mutex_exit(&sc->sc_glock);
   2692 	}
   2693 
   2694 }
   2695 
   2696 /*
   2697  * deal with receiving frames, command response
   2698  * and all notifications from ucode.
   2699  */
   2700 /* ARGSUSED */
   2701 static uint_t
   2702 iwh_rx_softintr(caddr_t arg, caddr_t unused)
   2703 {
   2704 	iwh_sc_t *sc;
   2705 	ieee80211com_t *ic;
   2706 	iwh_rx_desc_t *desc;
   2707 	iwh_rx_data_t *data;
   2708 	uint32_t index;
   2709 
   2710 	if (NULL == arg) {
   2711 		return (DDI_INTR_UNCLAIMED);
   2712 	}
   2713 	sc = (iwh_sc_t *)arg;
   2714 	ic = &sc->sc_ic;
   2715 
   2716 	/*
   2717 	 * firmware has moved the index of the rx queue, driver get it,
   2718 	 * and deal with it.
   2719 	 */
   2720 	index = (sc->sc_shared->val0) & 0xfff;
   2721 
   2722 	while (sc->sc_rxq.cur != index) {
   2723 		data = &sc->sc_rxq.data[sc->sc_rxq.cur];
   2724 		desc = (iwh_rx_desc_t *)data->dma_data.mem_va;
   2725 
   2726 		IWH_DBG((IWH_DEBUG_INTR, "iwh_rx_softintr(): "
   2727 		    "rx notification index = %d"
   2728 		    " cur = %d qid=%x idx=%d flags=%x type=%x len=%d\n",
   2729 		    index, sc->sc_rxq.cur, desc->hdr.qid, desc->hdr.idx,
   2730 		    desc->hdr.flags, desc->hdr.type, LE_32(desc->len)));
   2731 
   2732 		/*
   2733 		 * a command other than a tx need to be replied
   2734 		 */
   2735 		if (!(desc->hdr.qid & 0x80) &&
   2736 		    (desc->hdr.type != REPLY_SCAN_CMD) &&
   2737 		    (desc->hdr.type != REPLY_TX)) {
   2738 			iwh_cmd_intr(sc, desc);
   2739 		}
   2740 
   2741 		switch (desc->hdr.type) {
   2742 		case REPLY_RX_PHY_CMD:
   2743 			iwh_rx_phy_intr(sc, desc);
   2744 			break;
   2745 
   2746 		case REPLY_RX_MPDU_CMD:
   2747 			iwh_rx_mpdu_intr(sc, desc);
   2748 			break;
   2749 
   2750 		case REPLY_TX:
   2751 			iwh_tx_intr(sc, desc);
   2752 			break;
   2753 
   2754 		case REPLY_ALIVE:
   2755 			iwh_ucode_alive(sc, desc);
   2756 			break;
   2757 
   2758 		case CARD_STATE_NOTIFICATION:
   2759 		{
   2760 			uint32_t *status = (uint32_t *)(desc + 1);
   2761 
   2762 			IWH_DBG((IWH_DEBUG_RADIO, "iwh_rx_softintr(): "
   2763 			    "state changed to %x\n",
   2764 			    LE_32(*status)));
   2765 
   2766 			if (LE_32(*status) & 1) {
   2767 				/*
   2768 				 * the radio button has to be pushed(OFF). It
   2769 				 * is considered as a hw error, the
   2770 				 * iwh_thread() tries to recover it after the
   2771 				 * button is pushed again(ON)
   2772 				 */
   2773 				cmn_err(CE_NOTE, "iwh_rx_softintr(): "
   2774 				    "radio transmitter is off\n");
   2775 				sc->sc_ostate = sc->sc_ic.ic_state;
   2776 				ieee80211_new_state(&sc->sc_ic,
   2777 				    IEEE80211_S_INIT, -1);
   2778 				atomic_or_32(&sc->sc_flags,
   2779 				    (IWH_F_HW_ERR_RECOVER | IWH_F_RADIO_OFF));
   2780 			}
   2781 
   2782 			break;
   2783 		}
   2784 
   2785 		case SCAN_START_NOTIFICATION:
   2786 		{
   2787 			iwh_start_scan_t *scan =
   2788 			    (iwh_start_scan_t *)(desc + 1);
   2789 
   2790 			IWH_DBG((IWH_DEBUG_SCAN, "iwh_rx_softintr(): "
   2791 			    "scanning channel %d status %x\n",
   2792 			    scan->chan, LE_32(scan->status)));
   2793 
   2794 			ic->ic_curchan = &ic->ic_sup_channels[scan->chan];
   2795 			break;
   2796 		}
   2797 
   2798 		case SCAN_COMPLETE_NOTIFICATION:
   2799 		{
   2800 #ifdef	DEBUG
   2801 			iwh_stop_scan_t *scan =
   2802 			    (iwh_stop_scan_t *)(desc + 1);
   2803 
   2804 			IWH_DBG((IWH_DEBUG_SCAN, "iwh_rx_softintr(): "
   2805 			    "completed channel %d (burst of %d) status %02x\n",
   2806 			    scan->chan, scan->nchan, scan->status));
   2807 #endif
   2808 
   2809 			sc->sc_scan_pending++;
   2810 			break;
   2811 		}
   2812 
   2813 		case STATISTICS_NOTIFICATION:
   2814 		{
   2815 			/*
   2816 			 * handle statistics notification
   2817 			 */
   2818 			break;
   2819 		}
   2820 
   2821 		case CALIBRATION_RES_NOTIFICATION:
   2822 			iwh_save_calib_result(sc, desc);
   2823 			break;
   2824 
   2825 		case CALIBRATION_COMPLETE_NOTIFICATION:
   2826 			mutex_enter(&sc->sc_glock);
   2827 			atomic_or_32(&sc->sc_flags, IWH_F_FW_INIT);
   2828 			cv_signal(&sc->sc_ucode_cv);
   2829 			mutex_exit(&sc->sc_glock);
   2830 			break;
   2831 
   2832 		case MISSED_BEACONS_NOTIFICATION:
   2833 			/* handle beacon miss by software mechanism */
   2834 			break;
   2835 		}
   2836 
   2837 		sc->sc_rxq.cur = (sc->sc_rxq.cur + 1) % RX_QUEUE_SIZE;
   2838 	}
   2839 
   2840 	/*
   2841 	 * driver dealt with what received in rx queue and tell the information
   2842 	 * to the firmware.
   2843 	 */
   2844 	index = (0 == index) ? RX_QUEUE_SIZE - 1 : index - 1;
   2845 	IWH_WRITE(sc, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, index & (~7));
   2846 
   2847 	/*
   2848 	 * re-enable interrupts
   2849 	 */
   2850 	IWH_WRITE(sc, CSR_INT_MASK, CSR_INI_SET_MASK);
   2851 
   2852 	return (DDI_INTR_CLAIMED);
   2853 }
   2854 
   2855 /*
   2856  * the handle of interrupt
   2857  */
   2858 /* ARGSUSED */
   2859 static uint_t
   2860 iwh_intr(caddr_t arg, caddr_t unused)
   2861 {
   2862 	iwh_sc_t *sc;
   2863 	uint32_t r, rfh;
   2864 
   2865 	if (NULL == arg) {
   2866 		return (DDI_INTR_UNCLAIMED);
   2867 	}
   2868 	sc = (iwh_sc_t *)arg;
   2869 
   2870 	r = IWH_READ(sc, CSR_INT);
   2871 	if (0 == r || 0xffffffff == r) {
   2872 		return (DDI_INTR_UNCLAIMED);
   2873 	}
   2874 
   2875 	IWH_DBG((IWH_DEBUG_INTR, "iwh_intr(): "
   2876 	    "interrupt reg %x\n", r));
   2877 
   2878 	rfh = IWH_READ(sc, CSR_FH_INT_STATUS);
   2879 
   2880 	IWH_DBG((IWH_DEBUG_INTR, "iwh_intr(): "
   2881 	    "FH interrupt reg %x\n", rfh));
   2882 
   2883 	/*
   2884 	 * disable interrupts
   2885 	 */
   2886 	IWH_WRITE(sc, CSR_INT_MASK, 0);
   2887 
   2888 	/*
   2889 	 * ack interrupts
   2890 	 */
   2891 	IWH_WRITE(sc, CSR_INT, r);
   2892 	IWH_WRITE(sc, CSR_FH_INT_STATUS, rfh);
   2893 
   2894 	if (r & (BIT_INT_SWERROR | BIT_INT_ERR)) {
   2895 		IWH_DBG((IWH_DEBUG_FW, "iwh_intr(): "
   2896 		    "fatal firmware error\n"));
   2897 		iwh_stop(sc);
   2898 		sc->sc_ostate = sc->sc_ic.ic_state;
   2899 
   2900 		/*
   2901 		 * notify upper layer
   2902 		 */
   2903 		if (!IWH_CHK_FAST_RECOVER(sc)) {
   2904 			ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1);
   2905 		}
   2906 
   2907 		atomic_or_32(&sc->sc_flags, IWH_F_HW_ERR_RECOVER);
   2908 		return (DDI_INTR_CLAIMED);
   2909 	}
   2910 
   2911 	if (r & BIT_INT_RF_KILL) {
   2912 		uint32_t tmp = IWH_READ(sc, CSR_GP_CNTRL);
   2913 		if (tmp & (1 << 27)) {
   2914 			cmn_err(CE_NOTE, "RF switch: radio on\n");
   2915 		}
   2916 	}
   2917 
   2918 	if ((r & (BIT_INT_FH_RX | BIT_INT_SW_RX)) ||
   2919 	    (rfh & FH_INT_RX_MASK)) {
   2920 		(void) ddi_intr_trigger_softint(sc->sc_soft_hdl, NULL);
   2921 		return (DDI_INTR_CLAIMED);
   2922 	}
   2923 
   2924 	if (r & BIT_INT_FH_TX) {
   2925 		mutex_enter(&sc->sc_glock);
   2926 		atomic_or_32(&sc->sc_flags, IWH_F_PUT_SEG);
   2927 		cv_signal(&sc->sc_put_seg_cv);
   2928 		mutex_exit(&sc->sc_glock);
   2929 	}
   2930 
   2931 #ifdef	DEBUG
   2932 	if (r & BIT_INT_ALIVE)	{
   2933 		IWH_DBG((IWH_DEBUG_FW, "iwh_intr(): "
   2934 		    "firmware initialized.\n"));
   2935 	}
   2936 #endif
   2937 
   2938 	/*
   2939 	 * re-enable interrupts
   2940 	 */
   2941 	IWH_WRITE(sc, CSR_INT_MASK, CSR_INI_SET_MASK);
   2942 
   2943 	return (DDI_INTR_CLAIMED);
   2944 }
   2945 
   2946 static uint8_t
   2947 iwh_rate_to_plcp(int rate)
   2948 {
   2949 	uint8_t ret;
   2950 
   2951 	switch (rate) {
   2952 	/*
   2953 	 * CCK rates
   2954 	 */
   2955 	case 2:
   2956 		ret = 0xa;
   2957 		break;
   2958 
   2959 	case 4:
   2960 		ret = 0x14;
   2961 		break;
   2962 
   2963 	case 11:
   2964 		ret = 0x37;
   2965 		break;
   2966 
   2967 	case 22:
   2968 		ret = 0x6e;
   2969 		break;
   2970 
   2971 	/*
   2972 	 * OFDM rates
   2973 	 */
   2974 	case 12:
   2975 		ret = 0xd;
   2976 		break;
   2977 
   2978 	case 18:
   2979 		ret = 0xf;
   2980 		break;
   2981 
   2982 	case 24:
   2983 		ret = 0x5;
   2984 		break;
   2985 
   2986 	case 36:
   2987 		ret = 0x7;
   2988 		break;
   2989 
   2990 	case 48:
   2991 		ret = 0x9;
   2992 		break;
   2993 
   2994 	case 72:
   2995 		ret = 0xb;
   2996 		break;
   2997 
   2998 	case 96:
   2999 		ret = 0x1;
   3000 		break;
   3001 
   3002 	case 108:
   3003 		ret = 0x3;
   3004 		break;
   3005 
   3006 	default:
   3007 		ret = 0;
   3008 		break;
   3009 	}
   3010 
   3011 	return (ret);
   3012 }
   3013 
   3014 /*
   3015  * invoked by GLD send frames
   3016  */
   3017 static mblk_t *
   3018 iwh_m_tx(void *arg, mblk_t *mp)
   3019 {
   3020 	iwh_sc_t *sc;
   3021 	ieee80211com_t *ic;
   3022 	mblk_t *next;
   3023 
   3024 	if (NULL == arg) {
   3025 		return (NULL);
   3026 	}
   3027 	sc = (iwh_sc_t *)arg;
   3028 	ic = &sc->sc_ic;
   3029 
   3030 	if (sc->sc_flags & IWH_F_SUSPEND) {
   3031 		freemsgchain(mp);
   3032 		return (NULL);
   3033 	}
   3034 
   3035 	if (ic->ic_state != IEEE80211_S_RUN) {
   3036 		freemsgchain(mp);
   3037 		return (NULL);
   3038 	}
   3039 
   3040 	if ((sc->sc_flags & IWH_F_HW_ERR_RECOVER) &&
   3041 	    IWH_CHK_FAST_RECOVER(sc)) {
   3042 		IWH_DBG((IWH_DEBUG_FW, "iwh_m_tx(): "
   3043 		    "hold queue\n"));
   3044 		return (mp);
   3045 	}
   3046 
   3047 	while (mp != NULL) {
   3048 		next = mp->b_next;
   3049 		mp->b_next = NULL;
   3050 		if (iwh_send(ic, mp, IEEE80211_FC0_TYPE_DATA) != 0) {
   3051 			mp->b_next = next;
   3052 			break;
   3053 		}
   3054 		mp = next;
   3055 	}
   3056 
   3057 	return (mp);
   3058 }
   3059 
   3060 /*
   3061  * send frames
   3062  */
   3063 static int
   3064 iwh_send(ieee80211com_t *ic, mblk_t *mp, uint8_t type)
   3065 {
   3066 	iwh_sc_t *sc;
   3067 	iwh_tx_ring_t *ring;
   3068 	iwh_tx_desc_t *desc;
   3069 	iwh_tx_data_t *data;
   3070 	iwh_tx_data_t *desc_data;
   3071 	iwh_cmd_t *cmd;
   3072 	iwh_tx_cmd_t *tx;
   3073 	ieee80211_node_t *in;
   3074 	struct ieee80211_frame *wh, *mp_wh;
   3075 	struct ieee80211_key *k = NULL;
   3076 	mblk_t *m, *m0;
   3077 	int hdrlen, len, len0, mblen, off, err = IWH_SUCCESS;
   3078 	uint16_t masks = 0;
   3079 	uint32_t rate, s_id = 0;
   3080 	int txq_id = NON_QOS_TXQ;
   3081 	struct ieee80211_qosframe *qwh = NULL;
   3082 	int tid = WME_TID_INVALID;
   3083 
   3084 	if (NULL == ic) {
   3085 		return (IWH_FAIL);
   3086 	}
   3087 	sc = (iwh_sc_t *)ic;
   3088 
   3089 	if (sc->sc_flags & IWH_F_SUSPEND) {
   3090 		if ((type & IEEE80211_FC0_TYPE_MASK) !=
   3091 		    IEEE80211_FC0_TYPE_DATA) {
   3092 			freemsg(mp);
   3093 		}
   3094 		err = IWH_FAIL;
   3095 		goto exit;
   3096 	}
   3097 
   3098 	if ((NULL == mp) || (MBLKL(mp) <= 0)) {
   3099 		return (IWH_FAIL);
   3100 	}
   3101 
   3102 	mp_wh = (struct ieee80211_frame *)mp->b_rptr;
   3103 
   3104 	/*
   3105 	 * Determine send which AP or station in IBSS
   3106 	 */
   3107 	in = ieee80211_find_txnode(ic, mp_wh->i_addr1);
   3108 	if (NULL == in) {
   3109 		cmn_err(CE_WARN, "iwh_send(): "
   3110 		    "failed to find tx node\n");
   3111 		freemsg(mp);
   3112 		sc->sc_tx_err++;
   3113 		err = IWH_SUCCESS;
   3114 		goto exit;
   3115 	}
   3116 
   3117 	/*
   3118 	 * Determine TX queue according to traffic ID in frame
   3119 	 * if working in QoS mode.
   3120 	 */
   3121 	if (in->in_flags & IEEE80211_NODE_QOS) {
   3122 
   3123 		if ((type & IEEE80211_FC0_TYPE_MASK) ==
   3124 		    IEEE80211_FC0_TYPE_DATA) {
   3125 
   3126 			if (mp_wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) {
   3127 				qwh = (struct ieee80211_qosframe *)mp_wh;
   3128 
   3129 				tid = qwh->i_qos[0] & IEEE80211_QOS_TID;
   3130 				txq_id = iwh_wme_tid_to_txq(tid);
   3131 
   3132 				if (txq_id < TXQ_FOR_AC_MIN ||
   3133 				    (txq_id > TXQ_FOR_AC_MAX)) {
   3134 					freemsg(mp);
   3135 					sc->sc_tx_err++;
   3136 					err = IWH_SUCCESS;
   3137 					goto exit;
   3138 				}
   3139 
   3140 			} else {
   3141 				txq_id = NON_QOS_TXQ;
   3142 			}
   3143 
   3144 		} else if ((type & IEEE80211_FC0_TYPE_MASK) ==
   3145 		    IEEE80211_FC0_TYPE_MGT) {
   3146 			txq_id = QOS_TXQ_FOR_MGT;
   3147 		} else {
   3148 			txq_id = NON_QOS_TXQ;
   3149 		}
   3150 
   3151 	} else {
   3152 		txq_id = NON_QOS_TXQ;
   3153 	}
   3154 
   3155 	mutex_enter(&sc->sc_tx_lock);
   3156 	ring = &sc->sc_txq[txq_id];
   3157 	data = &ring->data[ring->cur];
   3158 	cmd = data->cmd;
   3159 	bzero(cmd, sizeof (*cmd));
   3160 
   3161 	ring->cur = (ring->cur + 1) % ring->count;
   3162 
   3163 	/*
   3164 	 * Need reschedule TX if TX buffer is full.
   3165 	 */
   3166 	if (ring->queued > ring->count - IWH_MAX_WIN_SIZE) {
   3167 		IWH_DBG((IWH_DEBUG_TX, "iwh_send(): "
   3168 		"no txbuf\n"));
   3169 
   3170 		sc->sc_need_reschedule = 1;
   3171 		mutex_exit(&sc->sc_tx_lock);
   3172 
   3173 		if ((type & IEEE80211_FC0_TYPE_MASK) !=
   3174 		    IEEE80211_FC0_TYPE_DATA) {
   3175 			freemsg(mp);
   3176 		}
   3177 		sc->sc_tx_nobuf++;
   3178 		err = IWH_FAIL;
   3179 		goto exit;
   3180 	}
   3181 
   3182 	ring->queued++;
   3183 
   3184 	mutex_exit(&sc->sc_tx_lock);
   3185 
   3186 	hdrlen = ieee80211_hdrspace(ic, mp->b_rptr);
   3187 
   3188 	m = allocb(msgdsize(mp) + 32, BPRI_MED);
   3189 	if (NULL == m) { /* can not alloc buf, drop this package */
   3190 		cmn_err(CE_WARN, "iwh_send(): "
   3191 		    "failed to allocate msgbuf\n");
   3192 		freemsg(mp);
   3193 
   3194 		mutex_enter(&sc->sc_tx_lock);
   3195 		ring->queued--;
   3196 		if ((sc->sc_need_reschedule) && (ring->queued <= 0)) {
   3197 			sc->sc_need_reschedule = 0;
   3198 			mutex_exit(&sc->sc_tx_lock);
   3199 			mac_tx_update(ic->ic_mach);
   3200 			mutex_enter(&sc->sc_tx_lock);
   3201 		}
   3202 		mutex_exit(&sc->sc_tx_lock);
   3203 
   3204 		err = IWH_SUCCESS;
   3205 		goto exit;
   3206 	}
   3207 
   3208 	for (off = 0, m0 = mp; m0 != NULL; m0 = m0->b_cont) {
   3209 		mblen = MBLKL(m0);
   3210 		bcopy(m0->b_rptr, m->b_rptr + off, mblen);
   3211 		off += mblen;
   3212 	}
   3213 
   3214 	m->b_wptr += off;
   3215 
   3216 	wh = (struct ieee80211_frame *)m->b_rptr;
   3217 
   3218 	/*
   3219 	 * Net80211 module encapsulate outbound data frames.
   3220 	 * Add some feilds of 80211 frame.
   3221 	 */
   3222 	if ((type & IEEE80211_FC0_TYPE_MASK) ==
   3223 	    IEEE80211_FC0_TYPE_DATA) {
   3224 		(void) ieee80211_encap(ic, m, in);
   3225 	}
   3226 
   3227 	freemsg(mp);
   3228 
   3229 	cmd->hdr.type = REPLY_TX;
   3230 	cmd->hdr.flags = 0;
   3231 	cmd->hdr.qid = ring->qid;
   3232 
   3233 	tx = (iwh_tx_cmd_t *)cmd->data;
   3234 	tx->tx_flags = 0;
   3235 
   3236 	if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
   3237 		tx->tx_flags &= ~(LE_32(TX_CMD_FLG_ACK_MSK));
   3238 	} else {
   3239 		tx->tx_flags |= LE_32(TX_CMD_FLG_ACK_MSK);
   3240 	}
   3241 
   3242 	if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
   3243 		k = ieee80211_crypto_encap(ic, m);
   3244 		if (NULL == k) {
   3245 			freemsg(m);
   3246 			sc->sc_tx_err++;
   3247 
   3248 			mutex_enter(&sc->sc_tx_lock);
   3249 			ring->queued--;
   3250 			if ((sc->sc_need_reschedule) && (ring->queued <= 0)) {
   3251 				sc->sc_need_reschedule = 0;
   3252 				mutex_exit(&sc->sc_tx_lock);
   3253 				mac_tx_update(ic->ic_mach);
   3254 				mutex_enter(&sc->sc_tx_lock);
   3255 			}
   3256 			mutex_exit(&sc->sc_tx_lock);
   3257 
   3258 			err = IWH_SUCCESS;
   3259 			goto exit;
   3260 		}
   3261 
   3262 		/*
   3263 		 * packet header may have moved, reset our local pointer
   3264 		 */
   3265 		wh = (struct ieee80211_frame *)m->b_rptr;
   3266 	}
   3267 
   3268 	len = msgdsize(m);
   3269 
   3270 #ifdef DEBUG
   3271 	if (iwh_dbg_flags & IWH_DEBUG_TX) {
   3272 		ieee80211_dump_pkt((uint8_t *)wh, hdrlen, 0, 0);
   3273 	}
   3274 #endif
   3275 
   3276 	tx->rts_retry_limit = IWH_TX_RTS_RETRY_LIMIT;
   3277 	tx->data_retry_limit = IWH_TX_DATA_RETRY_LIMIT;
   3278 
   3279 	/*
   3280 	 * specific TX parameters for management frames
   3281 	 */
   3282 	if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
   3283 	    IEEE80211_FC0_TYPE_MGT) {
   3284 		/*
   3285 		 * mgmt frames are sent at 1M
   3286 		 */
   3287 		if ((in->in_rates.ir_rates[0] &
   3288 		    IEEE80211_RATE_VAL) != 0) {
   3289 			rate = in->in_rates.ir_rates[0] & IEEE80211_RATE_VAL;
   3290 		} else {
   3291 			rate = 2;
   3292 		}
   3293 
   3294 		tx->tx_flags |= LE_32(TX_CMD_FLG_SEQ_CTL_MSK);
   3295 
   3296 		/*
   3297 		 * tell h/w to set timestamp in probe responses
   3298 		 */
   3299 		if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
   3300 		    IEEE80211_FC0_SUBTYPE_PROBE_RESP) {
   3301 			tx->tx_flags |= LE_32(TX_CMD_FLG_TSF_MSK);
   3302 
   3303 			tx->data_retry_limit = 3;
   3304 			if (tx->data_retry_limit < tx->rts_retry_limit) {
   3305 				tx->rts_retry_limit = tx->data_retry_limit;
   3306 			}
   3307 		}
   3308 
   3309 		if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
   3310 		    IEEE80211_FC0_SUBTYPE_ASSOC_REQ) ||
   3311 		    ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
   3312 		    IEEE80211_FC0_SUBTYPE_REASSOC_REQ)) {
   3313 			tx->timeout.pm_frame_timeout = LE_16(3);
   3314 		} else {
   3315 			tx->timeout.pm_frame_timeout = LE_16(2);
   3316 		}
   3317 
   3318 	} else {
   3319 		/*
   3320 		 * do it here for the software way rate scaling.
   3321 		 * later for rate scaling in hardware.
   3322 		 *
   3323 		 * now the txrate is determined in tx cmd flags, set to the
   3324 		 * max value 54M for 11g and 11M for 11b and 96M for 11n
   3325 		 * originally.
   3326 		 */
   3327 		if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) {
   3328 			rate = ic->ic_fixed_rate;
   3329 		} else {
   3330 			if ((in->in_flags & IEEE80211_NODE_HT) &&
   3331 			    (sc->sc_ht_conf.ht_support)) {
   3332 				iwh_amrr_t *amrr = (iwh_amrr_t *)in;
   3333 				rate = amrr->ht_mcs_idx;
   3334 			} else {
   3335 				if ((in->in_rates.ir_rates[in->in_txrate] &
   3336 				    IEEE80211_RATE_VAL) != 0) {
   3337 					rate = in->in_rates.
   3338 					    ir_rates[in->in_txrate] &
   3339 					    IEEE80211_RATE_VAL;
   3340 				}
   3341 			}
   3342 		}
   3343 
   3344 		if (tid != WME_TID_INVALID) {
   3345 			tx->tid_tspec = (uint8_t)tid;
   3346 			tx->tx_flags &= LE_32(~TX_CMD_FLG_SEQ_CTL_MSK);
   3347 		} else {
   3348 			tx->tx_flags |= LE_32(TX_CMD_FLG_SEQ_CTL_MSK);
   3349 		}
   3350 
   3351 		tx->timeout.pm_frame_timeout = 0;
   3352 	}
   3353 
   3354 	IWH_DBG((IWH_DEBUG_TX, "iwh_send(): "
   3355 	    "tx rate[%d of %d] = %x",
   3356 	    in->in_txrate, in->in_rates.ir_nrates, rate));
   3357 
   3358 	len0 = roundup(4 + sizeof (iwh_tx_cmd_t) + hdrlen, 4);
   3359 	if (len0 != (4 + sizeof (iwh_tx_cmd_t) + hdrlen)) {
   3360 		tx->tx_flags |= LE_32(TX_CMD_FLG_MH_PAD_MSK);
   3361 	}
   3362 
   3363 	/*
   3364 	 * retrieve destination node's id
   3365 	 */
   3366 	if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
   3367 		tx->sta_id = IWH_BROADCAST_ID;
   3368 	} else {
   3369 		tx->sta_id = IWH_AP_ID;
   3370 	}
   3371 
   3372 	if ((in->in_flags & IEEE80211_NODE_HT) &&
   3373 	    (sc->sc_ht_conf.ht_support) &&
   3374 	    ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
   3375 	    IEEE80211_FC0_TYPE_DATA)) {
   3376 		if (rate >= HT_2CHAIN_RATE_MIN_IDX) {
   3377 			rate |= LE_32(RATE_MCS_ANT_AB_MSK);
   3378 		} else {
   3379 			rate |= LE_32(RATE_MCS_ANT_B_MSK);
   3380 		}
   3381 
   3382 		rate |= LE_32((1 << RATE_MCS_HT_POS));
   3383 
   3384 		tx->rate.r.rate_n_flags = rate;
   3385 
   3386 	} else {
   3387 		if (2 == rate || 4 == rate || 11 == rate || 22 == rate) {
   3388 			masks |= RATE_MCS_CCK_MSK;
   3389 		}
   3390 
   3391 		masks |= RATE_MCS_ANT_B_MSK;
   3392 		tx->rate.r.rate_n_flags = LE_32(iwh_rate_to_plcp(rate) | masks);
   3393 	}
   3394 
   3395 	IWH_DBG((IWH_DEBUG_TX, "iwh_send(): "
   3396 	    "tx flag = %x",
   3397 	    tx->tx_flags));
   3398 
   3399 	tx->stop_time.life_time  = LE_32(0xffffffff);
   3400 
   3401 	tx->len = LE_16(len);
   3402 
   3403 	tx->dram_lsb_ptr =
   3404 	    LE_32(data->paddr_cmd + 4 + offsetof(iwh_tx_cmd_t, scratch));
   3405 	tx->dram_msb_ptr = 0;
   3406 	tx->driver_txop = 0;
   3407 	tx->next_frame_len = 0;
   3408 
   3409 	bcopy(m->b_rptr, tx + 1, hdrlen);
   3410 	m->b_rptr += hdrlen;
   3411 	bcopy(m->b_rptr, data->dma_data.mem_va, (len - hdrlen));
   3412 
   3413 	IWH_DBG((IWH_DEBUG_TX, "iwh_send(): "
   3414 	    "sending data: qid=%d idx=%d len=%d",
   3415 	    ring->qid, ring->cur, len));
   3416 
   3417 	/*
   3418 	 * first segment includes the tx cmd plus the 802.11 header,
   3419 	 * the second includes the remaining of the 802.11 frame.
   3420 	 */
   3421 
   3422 	mutex_enter(&sc->sc_tx_lock);
   3423 	cmd->hdr.idx = ring->desc_cur;
   3424 	desc_data = &ring->data[ring->desc_cur];
   3425 	desc = desc_data->desc;
   3426 	bzero(desc, sizeof (*desc));
   3427 	desc->val0 = 2 << 24;
   3428 	desc->pa[0].tb1_addr = data->paddr_cmd;
   3429 	desc->pa[0].val1 = ((len0 << 4) & 0xfff0) |
   3430 	    ((data->dma_data.cookie.dmac_address & 0xffff) << 16);
   3431 	desc->pa[0].val2 =
   3432 	    ((data->dma_data.cookie.dmac_address & 0xffff0000) >> 16) |
   3433 	    ((len - hdrlen) << 20);
   3434 	IWH_DBG((IWH_DEBUG_TX, "iwh_send(): "
   3435 	    "phy addr1 = 0x%x phy addr2 = 0x%x "
   3436 	    "len1 = 0x%x, len2 = 0x%x val1 = 0x%x val2 = 0x%x",
   3437 	    data->paddr_cmd, data->dma_data.cookie.dmac_address,
   3438 	    len0, len - hdrlen, desc->pa[0].val1, desc->pa[0].val2));
   3439 
   3440 	/*
   3441 	 * kick ring
   3442 	 */
   3443 	s_id = tx->sta_id;
   3444 
   3445 	sc->sc_shared->queues_byte_cnt_tbls[ring->qid].
   3446 	    tfd_offset[ring->desc_cur].val =
   3447 	    (8 + len) | (s_id << 12);
   3448 	if (ring->desc_cur < IWH_MAX_WIN_SIZE) {
   3449 		sc->sc_shared->queues_byte_cnt_tbls[ring->qid].
   3450 		    tfd_offset[IWH_QUEUE_SIZE + ring->desc_cur].val =
   3451 		    (8 + len) | (s_id << 12);
   3452 	}
   3453 
   3454 	IWH_DMA_SYNC(data->dma_data, DDI_DMA_SYNC_FORDEV);
   3455 	IWH_DMA_SYNC(ring->dma_desc, DDI_DMA_SYNC_FORDEV);
   3456 
   3457 	ring->desc_cur = (ring->desc_cur + 1) % ring->count;
   3458 	IWH_WRITE(sc, HBUS_TARG_WRPTR, ring->qid << 8 | ring->desc_cur);
   3459 
   3460 	mutex_exit(&sc->sc_tx_lock);
   3461 	freemsg(m);
   3462 
   3463 	/*
   3464 	 * release node reference
   3465 	 */
   3466 	ieee80211_free_node(in);
   3467 
   3468 	ic->ic_stats.is_tx_bytes += len;
   3469 	ic->ic_stats.is_tx_frags++;
   3470 
   3471 	mutex_enter(&sc->sc_mt_lock);
   3472 	if (0 == sc->sc_tx_timer) {
   3473 		sc->sc_tx_timer = 4;
   3474 	}
   3475 	mutex_exit(&sc->sc_mt_lock);
   3476 
   3477 exit:
   3478 	return (err);
   3479 }
   3480 
   3481 /*
   3482  * invoked by GLD to deal with IOCTL affaires
   3483  */
   3484 static void
   3485 iwh_m_ioctl(void* arg, queue_t *wq, mblk_t *mp)
   3486 {
   3487 	iwh_sc_t *sc;
   3488 	ieee80211com_t *ic;
   3489 	int err = EINVAL;
   3490 
   3491 	if (NULL == arg) {
   3492 		return;
   3493 	}
   3494 	sc = (iwh_sc_t *)arg;
   3495 	ic = &sc->sc_ic;
   3496 
   3497 	err = ieee80211_ioctl(ic, wq, mp);
   3498 	if (ENETRESET == err) {
   3499 		/*
   3500 		 * This is special for the hidden AP connection.
   3501 		 * In any case, we should make sure only one 'scan'
   3502 		 * in the driver for a 'connect' CLI command. So
   3503 		 * when connecting to a hidden AP, the scan is just
   3504 		 * sent out to the air when we know the desired
   3505 		 * essid of the AP we want to connect.
   3506 		 */
   3507 		if (ic->ic_des_esslen) {
   3508 			if (sc->sc_flags & IWH_F_RUNNING) {
   3509 				iwh_m_stop(sc);
   3510 				(void) iwh_m_start(sc);
   3511 				(void) ieee80211_new_state(ic,
   3512 				    IEEE80211_S_SCAN, -1);
   3513 			}
   3514 		}
   3515 	}
   3516 }
   3517 
   3518 /*
   3519  * Call back functions for get/set proporty
   3520  */
   3521 static int
   3522 iwh_m_getprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num,
   3523     uint_t pr_flags, uint_t wldp_length, void *wldp_buf, uint_t *perm)
   3524 {
   3525 	iwh_sc_t *sc;
   3526 	int err = EINVAL;
   3527 
   3528 	if (NULL == arg) {
   3529 		return (EINVAL);
   3530 	}
   3531 	sc = (iwh_sc_t *)arg;
   3532 
   3533 	err = ieee80211_getprop(&sc->sc_ic, pr_name, wldp_pr_num,
   3534 	    pr_flags, wldp_length, wldp_buf, perm);
   3535 
   3536 	return (err);
   3537 }
   3538 
   3539 static int
   3540 iwh_m_setprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num,
   3541     uint_t wldp_length, const void *wldp_buf)
   3542 {
   3543 	iwh_sc_t *sc;
   3544 	ieee80211com_t *ic;
   3545 	int err = EINVAL;
   3546 
   3547 	if (NULL == arg) {
   3548 		return (EINVAL);
   3549 	}
   3550 	sc = (iwh_sc_t *)arg;
   3551 	ic = &sc->sc_ic;
   3552 
   3553 	err = ieee80211_setprop(ic, pr_name, wldp_pr_num, wldp_length,
   3554 	    wldp_buf);
   3555 
   3556 	if (err == ENETRESET) {
   3557 		if (ic->ic_des_esslen) {
   3558 			if (sc->sc_flags & IWH_F_RUNNING) {
   3559 				iwh_m_stop(sc);
   3560 				(void) iwh_m_start(sc);
   3561 				(void) ieee80211_new_state(ic,
   3562 				    IEEE80211_S_SCAN, -1);
   3563 			}
   3564 		}
   3565 		err = 0;
   3566 	}
   3567 	return (err);
   3568 }
   3569 
   3570 /*
   3571  * invoked by GLD supply statistics NIC and driver
   3572  */
   3573 static int
   3574 iwh_m_stat(void *arg, uint_t stat, uint64_t *val)
   3575 {
   3576 	iwh_sc_t *sc;
   3577 	ieee80211com_t *ic;
   3578 	ieee80211_node_t *in;
   3579 
   3580 	if (NULL == arg) {
   3581 		return (EINVAL);
   3582 	}
   3583 	sc = (iwh_sc_t *)arg;
   3584 	ic = &sc->sc_ic;
   3585 
   3586 	mutex_enter(&sc->sc_glock);
   3587 
   3588 	switch (stat) {
   3589 	case MAC_STAT_IFSPEED:
   3590 		in = ic->ic_bss;
   3591 		*val = ((IEEE80211_FIXED_RATE_NONE == ic->ic_fixed_rate) ?
   3592 		    IEEE80211_RATE(in->in_txrate) :
   3593 		    ic->ic_fixed_rate) / 2 * 1000000;
   3594 		break;
   3595 
   3596 	case MAC_STAT_NOXMTBUF:
   3597 		*val = sc->sc_tx_nobuf;
   3598 		break;
   3599 
   3600 	case MAC_STAT_NORCVBUF:
   3601 		*val = sc->sc_rx_nobuf;
   3602 		break;
   3603 
   3604 	case MAC_STAT_IERRORS:
   3605 		*val = sc->sc_rx_err;
   3606 		break;
   3607 
   3608 	case MAC_STAT_RBYTES:
   3609 		*val = ic->ic_stats.is_rx_bytes;
   3610 		break;
   3611 
   3612 	case MAC_STAT_IPACKETS:
   3613 		*val = ic->ic_stats.is_rx_frags;
   3614 		break;
   3615 
   3616 	case MAC_STAT_OBYTES:
   3617 		*val = ic->ic_stats.is_tx_bytes;
   3618 		break;
   3619 
   3620 	case MAC_STAT_OPACKETS:
   3621 		*val = ic->ic_stats.is_tx_frags;
   3622 		break;
   3623 
   3624 	case MAC_STAT_OERRORS:
   3625 	case WIFI_STAT_TX_FAILED:
   3626 		*val = sc->sc_tx_err;
   3627 		break;
   3628 
   3629 	case WIFI_STAT_TX_RETRANS:
   3630 		*val = sc->sc_tx_retries;
   3631 		break;
   3632 
   3633 	case WIFI_STAT_FCS_ERRORS:
   3634 	case WIFI_STAT_WEP_ERRORS:
   3635 	case WIFI_STAT_TX_FRAGS:
   3636 	case WIFI_STAT_MCAST_TX:
   3637 	case WIFI_STAT_RTS_SUCCESS:
   3638 	case WIFI_STAT_RTS_FAILURE:
   3639 	case WIFI_STAT_ACK_FAILURE:
   3640 	case WIFI_STAT_RX_FRAGS:
   3641 	case WIFI_STAT_MCAST_RX:
   3642 	case WIFI_STAT_RX_DUPS:
   3643 		mutex_exit(&sc->sc_glock);
   3644 		return (ieee80211_stat(ic, stat, val));
   3645 
   3646 	default:
   3647 		mutex_exit(&sc->sc_glock);
   3648 		return (ENOTSUP);
   3649 	}
   3650 
   3651 	mutex_exit(&sc->sc_glock);
   3652 
   3653 	return (IWH_SUCCESS);
   3654 }
   3655 
   3656 /*
   3657  * invoked by GLD to start or open NIC
   3658  */
   3659 static int
   3660 iwh_m_start(void *arg)
   3661 {
   3662 	iwh_sc_t *sc;
   3663 	ieee80211com_t *ic;
   3664 	int err = IWH_FAIL;
   3665 
   3666 	if (NULL == arg) {
   3667 		return (EINVAL);
   3668 	}
   3669 	sc = (iwh_sc_t *)arg;
   3670 	ic = &sc->sc_ic;
   3671 
   3672 	err = iwh_init(sc);
   3673 	if (err != IWH_SUCCESS) {
   3674 		/*
   3675 		 * The hw init err(eg. RF is OFF). Return Success to make
   3676 		 * the 'plumb' succeed. The iwh_thread() tries to re-init
   3677 		 * background.
   3678 		 */
   3679 		atomic_or_32(&sc->sc_flags, IWH_F_HW_ERR_RECOVER);
   3680 		return (IWH_SUCCESS);
   3681 	}
   3682 
   3683 	ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
   3684 
   3685 	atomic_or_32(&sc->sc_flags, IWH_F_RUNNING);
   3686 
   3687 	return (IWH_SUCCESS);
   3688 }
   3689 
   3690 /*
   3691  * invoked by GLD to stop or down NIC
   3692  */
   3693 static void
   3694 iwh_m_stop(void *arg)
   3695 {
   3696 	iwh_sc_t *sc;
   3697 	ieee80211com_t *ic;
   3698 
   3699 	if (NULL == arg) {
   3700 		return;
   3701 	}
   3702 	sc = (iwh_sc_t *)arg;
   3703 	ic = &sc->sc_ic;
   3704 
   3705 	iwh_stop(sc);
   3706 
   3707 	/*
   3708 	 * release buffer for calibration
   3709 	 */
   3710 	iwh_release_calib_buffer(sc);
   3711 
   3712 	ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
   3713 
   3714 	atomic_and_32(&sc->sc_flags, ~IWH_F_HW_ERR_RECOVER);
   3715 	atomic_and_32(&sc->sc_flags, ~IWH_F_RATE_AUTO_CTL);
   3716 
   3717 	atomic_and_32(&sc->sc_flags, ~IWH_F_RUNNING);
   3718 	atomic_and_32(&sc->sc_flags, ~IWH_F_SCANNING);
   3719 }
   3720 
   3721 /*
   3722  * invoked by GLD to configure NIC
   3723  */
   3724 static int
   3725 iwh_m_unicst(void *arg, const uint8_t *macaddr)
   3726 {
   3727 	iwh_sc_t *sc;
   3728 	ieee80211com_t *ic;
   3729 	int err = IWH_SUCCESS;
   3730 
   3731 	if (NULL == arg) {
   3732 		return (EINVAL);
   3733 	}
   3734 	sc = (iwh_sc_t *)arg;
   3735 	ic = &sc->sc_ic;
   3736 
   3737 	if (!IEEE80211_ADDR_EQ(ic->ic_macaddr, macaddr)) {
   3738 		IEEE80211_ADDR_COPY(ic->ic_macaddr, macaddr);
   3739 		mutex_enter(&sc->sc_glock);
   3740 		err = iwh_config(sc);
   3741 		mutex_exit(&sc->sc_glock);
   3742 		if (err != IWH_SUCCESS) {
   3743 			cmn_err(CE_WARN, "iwh_m_unicst(): "
   3744 			    "failed to configure device\n");
   3745 			goto fail;
   3746 		}
   3747 	}
   3748 
   3749 fail:
   3750 	return (err);
   3751 }
   3752 
   3753 /* ARGSUSED */
   3754 static int
   3755 iwh_m_multicst(void *arg, boolean_t add, const uint8_t *m)
   3756 {
   3757 	return (IWH_SUCCESS);
   3758 }
   3759 
   3760 /* ARGSUSED */
   3761 static int
   3762 iwh_m_promisc(void *arg, boolean_t on)
   3763 {
   3764 	return (IWH_SUCCESS);
   3765 }
   3766 
   3767 /*
   3768  * kernel thread to deal with exceptional situation
   3769  */
   3770 static void
   3771 iwh_thread(iwh_sc_t *sc)
   3772 {
   3773 	ieee80211com_t *ic = &sc->sc_ic;
   3774 	clock_t clk;
   3775 	int err, n = 0, timeout = 0;
   3776 	uint32_t tmp;
   3777 #ifdef	DEBUG
   3778 	int times = 0;
   3779 #endif
   3780 
   3781 	while (sc->sc_mf_thread_switch) {
   3782 		tmp = IWH_READ(sc, CSR_GP_CNTRL);
   3783 		if (tmp & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) {
   3784 			atomic_and_32(&sc->sc_flags, ~IWH_F_RADIO_OFF);
   3785 		} else {
   3786 			atomic_or_32(&sc->sc_flags, IWH_F_RADIO_OFF);
   3787 		}
   3788 
   3789 		/*
   3790 		 * If  in SUSPEND or the RF is OFF, do nothing.
   3791 		 */
   3792 		if (sc->sc_flags & IWH_F_RADIO_OFF) {
   3793 			delay(drv_usectohz(100000));
   3794 			continue;
   3795 		}
   3796 
   3797 		/*
   3798 		 * recovery fatal error
   3799 		 */
   3800 		if (ic->ic_mach &&
   3801 		    (sc->sc_flags & IWH_F_HW_ERR_RECOVER)) {
   3802 
   3803 			IWH_DBG((IWH_DEBUG_FW, "iwh_thread(): "
   3804 			    "try to recover fatal hw error: %d\n", times++));
   3805 
   3806 			iwh_stop(sc);
   3807 
   3808 			if (IWH_CHK_FAST_RECOVER(sc)) {
   3809 				/*
   3810 				 * save runtime configuration
   3811 				 */
   3812 				bcopy(&sc->sc_config, &sc->sc_config_save,
   3813 				    sizeof (sc->sc_config));
   3814 			} else {
   3815 				ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
   3816 				delay(drv_usectohz(2000000 + n*500000));
   3817 			}
   3818 
   3819 			err = iwh_init(sc);
   3820 			if (err != IWH_SUCCESS) {
   3821 				n++;
   3822 				if (n < 20) {
   3823 					continue;
   3824 				}
   3825 			}
   3826 
   3827 			n = 0;
   3828 			if (!err) {
   3829 				atomic_or_32(&sc->sc_flags, IWH_F_RUNNING);
   3830 			}
   3831 
   3832 
   3833 			if (!IWH_CHK_FAST_RECOVER(sc) ||
   3834 			    iwh_fast_recover(sc) != IWH_SUCCESS) {
   3835 				atomic_and_32(&sc->sc_flags,
   3836 				    ~IWH_F_HW_ERR_RECOVER);
   3837 
   3838 				delay(drv_usectohz(2000000));
   3839 				if (sc->sc_ostate != IEEE80211_S_INIT) {
   3840 					ieee80211_new_state(ic,
   3841 					    IEEE80211_S_SCAN, 0);
   3842 				}
   3843 			}
   3844 		}
   3845 
   3846 		if (ic->ic_mach &&
   3847 		    (sc->sc_flags & IWH_F_SCANNING) && sc->sc_scan_pending) {
   3848 			IWH_DBG((IWH_DEBUG_SCAN, "iwh_thread(): "
   3849 			    "wait for probe response\n"));
   3850 
   3851 			sc->sc_scan_pending--;
   3852 			delay(drv_usectohz(200000));
   3853 			ieee80211_next_scan(ic);
   3854 		}
   3855 
   3856 		/*
   3857 		 * rate ctl
   3858 		 */
   3859 		if (ic->ic_mach &&
   3860 		    (sc->sc_flags & IWH_F_RATE_AUTO_CTL)) {
   3861 			clk = ddi_get_lbolt();
   3862 			if (clk > sc->sc_clk + drv_usectohz(1000000)) {
   3863 				iwh_amrr_timeout(sc);
   3864 			}
   3865 		}
   3866 
   3867 		if ((ic->ic_state == IEEE80211_S_RUN) &&
   3868 		    (ic->ic_beaconmiss++ > 100)) {	/* 10 seconds */
   3869 			cmn_err(CE_WARN, "iwh: beacon missed for 10 seconds\n");
   3870 			(void) ieee80211_new_state(ic,
   3871 			    IEEE80211_S_INIT, -1);
   3872 		}
   3873 
   3874 		delay(drv_usectohz(100000));
   3875 
   3876 		mutex_enter(&sc->sc_mt_lock);
   3877 		if (sc->sc_tx_timer) {
   3878 			timeout++;
   3879 			if (10 == timeout) {
   3880 				sc->sc_tx_timer--;
   3881 				if (0 == sc->sc_tx_timer) {
   3882 					atomic_or_32(&sc->sc_flags,
   3883 					    IWH_F_HW_ERR_RECOVER);
   3884 					sc->sc_ostate = IEEE80211_S_RUN;
   3885 					IWH_DBG((IWH_DEBUG_FW, "iwh_thread(): "
   3886 					    "try to recover from "
   3887 					    "send fail\n"));
   3888 				}
   3889 				timeout = 0;
   3890 			}
   3891 		}
   3892 		mutex_exit(&sc->sc_mt_lock);
   3893 	}
   3894 
   3895 	mutex_enter(&sc->sc_mt_lock);
   3896 	sc->sc_mf_thread = NULL;
   3897 	cv_signal(&sc->sc_mt_cv);
   3898 	mutex_exit(&sc->sc_mt_lock);
   3899 }
   3900 
   3901 /*
   3902  * Send a command to the ucode.
   3903  */
   3904 static int
   3905 iwh_cmd(iwh_sc_t *sc, int code, const void *buf, int size, int async)
   3906 {
   3907 	iwh_tx_ring_t *ring = &sc->sc_txq[IWH_CMD_QUEUE_NUM];
   3908 	iwh_tx_desc_t *desc;
   3909 	iwh_cmd_t *cmd;
   3910 
   3911 	ASSERT(size <= sizeof (cmd->data));
   3912 	ASSERT(mutex_owned(&sc->sc_glock));
   3913 
   3914 	IWH_DBG((IWH_DEBUG_CMD, "iwh_cmd() "
   3915 	    "code[%d]", code));
   3916 	desc = ring->data[ring->cur].desc;
   3917 	cmd = ring->data[ring->cur].cmd;
   3918 
   3919 	cmd->hdr.type = (uint8_t)code;
   3920 	cmd->hdr.flags = 0;
   3921 	cmd->hdr.qid = ring->qid;
   3922 	cmd->hdr.idx = ring->cur;
   3923 	bcopy(buf, cmd->data, size);
   3924 	(void) memset(desc, 0, sizeof (*desc));
   3925 
   3926 	desc->val0 = 1 << 24;
   3927 	desc->pa[0].tb1_addr =
   3928 	    (uint32_t)(ring->data[ring->cur].paddr_cmd & 0xffffffff);
   3929 	desc->pa[0].val1 = ((4 + size) << 4) & 0xfff0;
   3930 
   3931 	if (async) {
   3932 		sc->sc_cmd_accum++;
   3933 	}
   3934 
   3935 	/*
   3936 	 * kick cmd ring XXX
   3937 	 */
   3938 	sc->sc_shared->queues_byte_cnt_tbls[ring->qid].
   3939 	    tfd_offset[ring->cur].val = 8;
   3940 	if (ring->cur < IWH_MAX_WIN_SIZE) {
   3941 		sc->sc_shared->queues_byte_cnt_tbls[ring->qid].
   3942 		    tfd_offset[IWH_QUEUE_SIZE + ring->cur].val = 8;
   3943 	}
   3944 	ring->cur = (ring->cur + 1) % ring->count;
   3945 	IWH_WRITE(sc, HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
   3946 
   3947 	if (async) {
   3948 		return (IWH_SUCCESS);
   3949 	} else {
   3950 		clock_t clk;
   3951 
   3952 		clk = ddi_get_lbolt() + drv_usectohz(2000000);
   3953 		while (sc->sc_cmd_flag != SC_CMD_FLG_DONE) {
   3954 			if (cv_timedwait(&sc->sc_cmd_cv,
   3955 			    &sc->sc_glock, clk) < 0) {
   3956 				break;
   3957 			}
   3958 		}
   3959 
   3960 		if (SC_CMD_FLG_DONE == sc->sc_cmd_flag) {
   3961 			sc->sc_cmd_flag = SC_CMD_FLG_NONE;
   3962 			return (IWH_SUCCESS);
   3963 		} else {
   3964 			sc->sc_cmd_flag = SC_CMD_FLG_NONE;
   3965 			return (IWH_FAIL);
   3966 		}
   3967 	}
   3968 }
   3969 
   3970 /*
   3971  * require ucode seting led of NIC
   3972  */
   3973 static void
   3974 iwh_set_led(iwh_sc_t *sc, uint8_t id, uint8_t off, uint8_t on)
   3975 {
   3976 	iwh_led_cmd_t led;
   3977 
   3978 	led.interval = LE_32(100000);	/* unit: 100ms */
   3979 	led.id = id;
   3980 	led.off = off;
   3981 	led.on = on;
   3982 
   3983 	(void) iwh_cmd(sc, REPLY_LEDS_CMD, &led, sizeof (led), 1);
   3984 }
   3985 
   3986 /*
   3987  * necessary setting to NIC before authentication
   3988  */
   3989 static int
   3990 iwh_hw_set_before_auth(iwh_sc_t *sc)
   3991 {
   3992 	ieee80211com_t *ic = &sc->sc_ic;
   3993 	ieee80211_node_t *in = ic->ic_bss;
   3994 	int err = IWH_FAIL;
   3995 
   3996 	/*
   3997 	 * update adapter's configuration according
   3998 	 * the info of target AP
   3999 	 */
   4000 	IEEE80211_ADDR_COPY(sc->sc_config.bssid, in->in_bssid);
   4001 	sc->sc_config.chan = LE_16(ieee80211_chan2ieee(ic, in->in_chan));
   4002 
   4003 	if (ic->ic_curmode != IEEE80211_MODE_11NG) {
   4004 
   4005 		sc->sc_config.ofdm_ht_triple_stream_basic_rates = 0;
   4006 		sc->sc_config.ofdm_ht_dual_stream_basic_rates = 0;
   4007 		sc->sc_config.ofdm_ht_single_stream_basic_rates = 0;
   4008 
   4009 		if (IEEE80211_MODE_11B == ic->ic_curmode) {
   4010 			sc->sc_config.cck_basic_rates  = 0x03;
   4011 			sc->sc_config.ofdm_basic_rates = 0;
   4012 		} else if ((in->in_chan != IEEE80211_CHAN_ANYC) &&
   4013 		    (IEEE80211_IS_CHAN_5GHZ(in->in_chan))) {
   4014 			sc->sc_config.cck_basic_rates  = 0;
   4015 			sc->sc_config.ofdm_basic_rates = 0x15;
   4016 		} else { /* assume 802.11b/g */
   4017 			sc->sc_config.cck_basic_rates  = 0x0f;
   4018 			sc->sc_config.ofdm_basic_rates = 0xff;
   4019 		}
   4020 	}
   4021 
   4022 	sc->sc_config.flags &= ~LE_32(RXON_FLG_SHORT_PREAMBLE_MSK |
   4023 	    RXON_FLG_SHORT_SLOT_MSK);
   4024 
   4025 	if (ic->ic_flags & IEEE80211_F_SHSLOT) {
   4026 		sc->sc_config.flags |= LE_32(RXON_FLG_SHORT_SLOT_MSK);
   4027 	} else {
   4028 		sc->sc_config.flags &= LE_32(~RXON_FLG_SHORT_SLOT_MSK);
   4029 	}
   4030 
   4031 	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) {
   4032 		sc->sc_config.flags |= LE_32(RXON_FLG_SHORT_PREAMBLE_MSK);
   4033 	} else {
   4034 		sc->sc_config.flags &= LE_32(~RXON_FLG_SHORT_PREAMBLE_MSK);
   4035 	}
   4036 
   4037 	IWH_DBG((IWH_DEBUG_80211, "iwh_hw_set_before_auth(): "
   4038 	    "config chan %d flags %x "
   4039 	    "filter_flags %x  cck %x ofdm %x"
   4040 	    " bssid:%02x:%02x:%02x:%02x:%02x:%2x\n",
   4041 	    LE_16(sc->sc_config.chan), LE_32(sc->sc_config.flags),
   4042 	    LE_32(sc->sc_config.filter_flags),
   4043 	    sc->sc_config.cck_basic_rates, sc->sc_config.ofdm_basic_rates,
   4044 	    sc->sc_config.bssid[0], sc->sc_config.bssid[1],
   4045 	    sc->sc_config.bssid[2], sc->sc_config.bssid[3],
   4046 	    sc->sc_config.bssid[4], sc->sc_config.bssid[5]));
   4047 
   4048 	err = iwh_cmd(sc, REPLY_RXON, &sc->sc_config,
   4049 	    sizeof (iwh_rxon_cmd_t), 1);
   4050 	if (err != IWH_SUCCESS) {
   4051 		cmn_err(CE_WARN, "iwh_hw_set_before_auth(): "
   4052 		    "failed to config chan%d\n", sc->sc_config.chan);
   4053 		return (err);
   4054 	}
   4055 
   4056 	if ((sc->sc_dev_id != 0x423c) &&
   4057 	    (sc->sc_dev_id != 0x423d)) {
   4058 		err = iwh_tx_power_table(sc, 1);
   4059 		if (err != IWH_SUCCESS) {
   4060 			return (err);
   4061 		}
   4062 	}
   4063 
   4064 	/*
   4065 	 * add default AP node
   4066 	 */
   4067 	err = iwh_add_ap_sta(sc);
   4068 	if (err != IWH_SUCCESS) {
   4069 		return (err);
   4070 	}
   4071 
   4072 	if ((sc->sc_dev_id != 0x423c) &&
   4073 	    (sc->sc_dev_id != 0x423d)) {
   4074 		/*
   4075 		 * set up retry rate table for AP node
   4076 		 */
   4077 		err = iwh_ap_lq(sc);
   4078 		if (err != IWH_SUCCESS) {
   4079 			return (err);
   4080 		}
   4081 	}
   4082 
   4083 	return (err);
   4084 }
   4085 
   4086 /*
   4087  * Send a scan request(assembly scan cmd) to the firmware.
   4088  */
   4089 static int
   4090 iwh_scan(iwh_sc_t *sc)
   4091 {
   4092 	ieee80211com_t *ic = &sc->sc_ic;
   4093 	iwh_tx_ring_t *ring = &sc->sc_txq[IWH_CMD_QUEUE_NUM];
   4094 	iwh_tx_desc_t *desc;
   4095 	iwh_tx_data_t *data;
   4096 	iwh_cmd_t *cmd;
   4097 	iwh_scan_hdr_t *hdr;
   4098 	iwh_scan_chan_t chan;
   4099 	struct ieee80211_frame *wh;
   4100 	ieee80211_node_t *in = ic->ic_bss;
   4101 	uint8_t essid[IEEE80211_NWID_LEN+1];
   4102 	struct ieee80211_rateset *rs;
   4103 	enum ieee80211_phymode mode;
   4104 	uint8_t *frm;
   4105 	int i, pktlen, nrates;
   4106 
   4107 	data = &ring->data[ring->cur];
   4108 	desc = data->desc;
   4109 	cmd = (iwh_cmd_t *)data->dma_data.mem_va;
   4110 
   4111 	cmd->hdr.type = REPLY_SCAN_CMD;
   4112 	cmd->hdr.flags = 0;
   4113 	cmd->hdr.qid = ring->qid;
   4114 	cmd->hdr.idx = ring->cur | 0x40;
   4115 
   4116 	hdr = (iwh_scan_hdr_t *)cmd->data;
   4117 	(void) memset(hdr, 0, sizeof (iwh_scan_hdr_t));
   4118 	hdr->nchan = 1;
   4119 	hdr->quiet_time = LE_16(50);
   4120 	hdr->quiet_plcp_th = LE_16(1);
   4121 
   4122 	hdr->flags = LE_32(RXON_FLG_BAND_24G_MSK);
   4123 	hdr->rx_chain = LE_16(RXON_RX_CHAIN_DRIVER_FORCE_MSK |
   4124 	    (0x7 << RXON_RX_CHAIN_VALID_POS) |
   4125 	    (0x2 << RXON_RX_CHAIN_FORCE_SEL_POS) |
   4126 	    (0x2 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
   4127 
   4128 	hdr->tx_cmd.tx_flags = LE_32(TX_CMD_FLG_SEQ_CTL_MSK);
   4129 	hdr->tx_cmd.sta_id = IWH_BROADCAST_ID;
   4130 	hdr->tx_cmd.stop_time.life_time = LE_32(0xffffffff);
   4131 	hdr->tx_cmd.rate.r.rate_n_flags = LE_32(iwh_rate_to_plcp(2));
   4132 	hdr->tx_cmd.rate.r.rate_n_flags |=
   4133 	    LE_32(RATE_MCS_ANT_B_MSK |RATE_MCS_CCK_MSK);
   4134 	hdr->direct_scan[0].len = ic->ic_des_esslen;
   4135 	hdr->direct_scan[0].id  = IEEE80211_ELEMID_SSID;
   4136 
   4137 	hdr->filter_flags = LE_32(RXON_FILTER_ACCEPT_GRP_MSK |
   4138 	    RXON_FILTER_BCON_AWARE_MSK);
   4139 
   4140 	if (ic->ic_des_esslen) {
   4141 		bcopy(ic->ic_des_essid, essid, ic->ic_des_esslen);
   4142 		essid[ic->ic_des_esslen] = '\0';
   4143 		IWH_DBG((IWH_DEBUG_SCAN, "iwh_scan(): "
   4144 		    "directed scan %s\n", essid));
   4145 
   4146 		bcopy(ic->ic_des_essid, hdr->direct_scan[0].ssid,
   4147 		    ic->ic_des_esslen);
   4148 	} else {
   4149 		bzero(hdr->direct_scan[0].ssid,
   4150 		    sizeof (hdr->direct_scan[0].ssid));
   4151 	}
   4152 
   4153 	/*
   4154 	 * a probe request frame is required after the REPLY_SCAN_CMD
   4155 	 */
   4156 	wh = (struct ieee80211_frame *)(hdr + 1);
   4157 	wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
   4158 	    IEEE80211_FC0_SUBTYPE_PROBE_REQ;
   4159 	wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
   4160 	(void) memset(wh->i_addr1, 0xff, 6);
   4161 	IEEE80211_ADDR_COPY(wh->i_addr2, ic->ic_macaddr);
   4162 	(void) memset(wh->i_addr3, 0xff, 6);
   4163 	*(uint16_t *)&wh->i_dur[0] = 0;
   4164 	*(uint16_t *)&wh->i_seq[0] = 0;
   4165 
   4166 	frm = (uint8_t *)(wh + 1);
   4167 
   4168 	/*
   4169 	 * essid IE
   4170 	 */
   4171 	if (in->in_esslen) {
   4172 		bcopy(in->in_essid, essid, in->in_esslen);
   4173 		essid[in->in_esslen] = '\0';
   4174 		IWH_DBG((IWH_DEBUG_SCAN, "iwh_scan(): "
   4175 		    "probe with ESSID %s\n",
   4176 		    essid));
   4177 	}
   4178 	*frm++ = IEEE80211_ELEMID_SSID;
   4179 	*frm++ = in->in_esslen;
   4180 	bcopy(in->in_essid, frm, in->in_esslen);
   4181 	frm += in->in_esslen;
   4182 
   4183 	mode = ieee80211_chan2mode(ic, ic->ic_curchan);
   4184 	rs = &ic->ic_sup_rates[mode];
   4185 
   4186 	/*
   4187 	 * supported rates IE
   4188 	 */
   4189 	*frm++ = IEEE80211_ELEMID_RATES;
   4190 	nrates = rs->ir_nrates;
   4191 	if (nrates > IEEE80211_RATE_SIZE) {
   4192 		nrates = IEEE80211_RATE_SIZE;
   4193 	}
   4194 
   4195 	*frm++ = (uint8_t)nrates;
   4196 	bcopy(rs->ir_rates, frm, nrates);
   4197 	frm += nrates;
   4198 
   4199 	/*
   4200 	 * supported xrates IE
   4201 	 */
   4202 	if (rs->ir_nrates > IEEE80211_RATE_SIZE) {
   4203 		nrates = rs->ir_nrates - IEEE80211_RATE_SIZE;
   4204 		*frm++ = IEEE80211_ELEMID_XRATES;
   4205 		*frm++ = (uint8_t)nrates;
   4206 		bcopy(rs->ir_rates + IEEE80211_RATE_SIZE, frm, nrates);
   4207 		frm += nrates;
   4208 	}
   4209 
   4210 	/*
   4211 	 * optionnal IE (usually for wpa)
   4212 	 */
   4213 	if (ic->ic_opt_ie != NULL) {
   4214 		bcopy(ic->ic_opt_ie, frm, ic->ic_opt_ie_len);
   4215 		frm += ic->ic_opt_ie_len;
   4216 	}
   4217 
   4218 	/* setup length of probe request */
   4219 	hdr->tx_cmd.len = LE_16(_PTRDIFF(frm, wh));
   4220 	hdr->len = LE_16(hdr->nchan * sizeof (iwh_scan_chan_t) +
   4221 	    LE_16(hdr->tx_cmd.len) + sizeof (iwh_scan_hdr_t));
   4222 
   4223 	/*
   4224 	 * the attribute of the scan channels are required after the probe
   4225 	 * request frame.
   4226 	 */
   4227 	for (i = 1; i <= hdr->nchan; i++) {
   4228 		if (ic->ic_des_esslen) {
   4229 			chan.type = LE_32(3);
   4230 		} else {
   4231 			chan.type = LE_32(1);
   4232 		}
   4233 
   4234 		chan.chan = LE_16(ieee80211_chan2ieee(ic, ic->ic_curchan));
   4235 		chan.tpc.tx_gain = 0x28;
   4236 		chan.tpc.dsp_atten = 110;
   4237 		chan.active_dwell = LE_16(50);
   4238 		chan.passive_dwell = LE_16(120);
   4239 
   4240 		bcopy(&chan, frm, sizeof (iwh_scan_chan_t));
   4241 		frm += sizeof (iwh_scan_chan_t);
   4242 	}
   4243 
   4244 	pktlen = _PTRDIFF(frm, cmd);
   4245 
   4246 	(void) memset(desc, 0, sizeof (*desc));
   4247 	desc->val0 = 1 << 24;
   4248 	desc->pa[0].tb1_addr =
   4249 	    (uint32_t)(data->dma_data.cookie.dmac_address & 0xffffffff);
   4250 	desc->pa[0].val1 = (pktlen << 4) & 0xfff0;
   4251 
   4252 	/*
   4253 	 * maybe for cmd, filling the byte cnt table is not necessary.
   4254 	 * anyway, we fill it here.
   4255 	 */
   4256 	sc->sc_shared->queues_byte_cnt_tbls[ring->qid]
   4257 	    .tfd_offset[ring->cur].val = 8;
   4258 	if (ring->cur < IWH_MAX_WIN_SIZE) {
   4259 		sc->sc_shared->queues_byte_cnt_tbls[ring->qid].
   4260 		    tfd_offset[IWH_QUEUE_SIZE + ring->cur].val = 8;
   4261 	}
   4262 
   4263 	/*
   4264 	 * kick cmd ring
   4265 	 */
   4266 	ring->cur = (ring->cur + 1) % ring->count;
   4267 	IWH_WRITE(sc, HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur);
   4268 
   4269 	return (IWH_SUCCESS);
   4270 }
   4271 
   4272 /*
   4273  * configure NIC by using ucode commands after loading ucode.
   4274  */
   4275 static int
   4276 iwh_config(iwh_sc_t *sc)
   4277 {
   4278 	ieee80211com_t *ic = &sc->sc_ic;
   4279 	iwh_powertable_cmd_t powertable;
   4280 	iwh_bt_cmd_t bt;
   4281 	iwh_add_sta_t node;
   4282 	iwh_rem_sta_t rm_sta;
   4283 	const uint8_t bcast[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
   4284 	iwh_link_quality_cmd_t link_quality;
   4285 	int i, err = IWH_FAIL;
   4286 	uint16_t masks = 0;
   4287 
   4288 	/*
   4289 	 * set power mode. Disable power management at present, do it later
   4290 	 */
   4291 	(void) memset(&powertable, 0, sizeof (powertable));
   4292 	powertable.flags = LE_16(0x8);
   4293 	err = iwh_cmd(sc, POWER_TABLE_CMD, &powertable,
   4294 	    sizeof (powertable), 0);
   4295 	if (err != IWH_SUCCESS) {
   4296 		cmn_err(CE_WARN, "iwh_config(): "
   4297 		    "failed to set power mode\n");
   4298 		return (err);
   4299 	}
   4300 
   4301 	/*
   4302 	 * configure bt coexistence
   4303 	 */
   4304 	(void) memset(&bt, 0, sizeof (bt));
   4305 	bt.flags = 3;
   4306 	bt.lead_time = 0xaa;
   4307 	bt.max_kill = 1;
   4308 	err = iwh_cmd(sc, REPLY_BT_CONFIG, &bt,
   4309 	    sizeof (bt), 0);
   4310 	if (err != IWH_SUCCESS) {
   4311 		cmn_err(CE_WARN, "iwh_config(): "
   4312 		    "failed to configurate bt coexistence\n");
   4313 		return (err);
   4314 	}
   4315 
   4316 	/*
   4317 	 * configure rxon
   4318 	 */
   4319 	(void) memset(&sc->sc_config, 0, sizeof (iwh_rxon_cmd_t));
   4320 	IEEE80211_ADDR_COPY(sc->sc_config.node_addr, ic->ic_macaddr);
   4321 	IEEE80211_ADDR_COPY(sc->sc_config.wlap_bssid, ic->ic_macaddr);
   4322 	sc->sc_config.chan = LE_16(ieee80211_chan2ieee(ic, ic->ic_curchan));
   4323 	sc->sc_config.flags = LE_32(RXON_FLG_BAND_24G_MSK);
   4324 	sc->sc_config.flags &= LE_32(~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
   4325 	    RXON_FLG_CHANNEL_MODE_PURE_40_MSK));
   4326 
   4327 	switch (ic->ic_opmode) {
   4328 	case IEEE80211_M_STA:
   4329 		sc->sc_config.dev_type = RXON_DEV_TYPE_ESS;
   4330 		sc->sc_config.filter_flags |= LE_32(RXON_FILTER_ACCEPT_GRP_MSK |
   4331 		    RXON_FILTER_DIS_DECRYPT_MSK |
   4332 		    RXON_FILTER_DIS_GRP_DECRYPT_MSK);
   4333 		break;
   4334 
   4335 	case IEEE80211_M_IBSS:
   4336 	case IEEE80211_M_AHDEMO:
   4337 		sc->sc_config.dev_type = RXON_DEV_TYPE_IBSS;
   4338 
   4339 		sc->sc_config.flags |= LE_32(RXON_FLG_SHORT_PREAMBLE_MSK);
   4340 		sc->sc_config.filter_flags = LE_32(RXON_FILTER_ACCEPT_GRP_MSK |
   4341 		    RXON_FILTER_DIS_DECRYPT_MSK |
   4342 		    RXON_FILTER_DIS_GRP_DECRYPT_MSK);
   4343 		break;
   4344 
   4345 	case IEEE80211_M_HOSTAP:
   4346 		sc->sc_config.dev_type = RXON_DEV_TYPE_AP;
   4347 		break;
   4348 
   4349 	case IEEE80211_M_MONITOR:
   4350 		sc->sc_config.dev_type = RXON_DEV_TYPE_SNIFFER;
   4351 		sc->sc_config.filter_flags |= LE_32(RXON_FILTER_ACCEPT_GRP_MSK |
   4352 		    RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
   4353 		break;
   4354 	}
   4355 
   4356 	/*
   4357 	 * Support all CCK rates.
   4358 	 */
   4359 	sc->sc_config.cck_basic_rates  = 0x0f;
   4360 
   4361 	/*
   4362 	 * Support all OFDM rates.
   4363 	 */
   4364 	sc->sc_config.ofdm_basic_rates = 0xff;
   4365 
   4366 	/*
   4367 	 * Determine HT supported rates.
   4368 	 */
   4369 	switch (sc->sc_ht_conf.rx_stream_count) {
   4370 	case 3:
   4371 		sc->sc_config.ofdm_ht_triple_stream_basic_rates = 0xff;
   4372 		sc->sc_config.ofdm_ht_dual_stream_basic_rates = 0xff;
   4373 		sc->sc_config.ofdm_ht_single_stream_basic_rates = 0xff;
   4374 		break;
   4375 	case 2:
   4376 		sc->sc_config.ofdm_ht_dual_stream_basic_rates = 0xff;
   4377 		sc->sc_config.ofdm_ht_single_stream_basic_rates = 0xff;
   4378 		break;
   4379 	case 1:
   4380 		sc->sc_config.ofdm_ht_single_stream_basic_rates = 0xff;
   4381 		break;
   4382 	default:
   4383 		cmn_err(CE_WARN, "iwh_config(): "
   4384 		    "RX stream count %d is not in suitable range\n",
   4385 		    sc->sc_ht_conf.rx_stream_count);
   4386 		return (IWH_FAIL);
   4387 	}
   4388 
   4389 	/*
   4390 	 * set RX chains/antennas.
   4391 	 */
   4392 	iwh_config_rxon_chain(sc);
   4393 
   4394 	err = iwh_cmd(sc, REPLY_RXON, &sc->sc_config,
   4395 	    sizeof (iwh_rxon_cmd_t), 0);
   4396 	if (err != IWH_SUCCESS) {
   4397 		cmn_err(CE_WARN, "iwh_config(): "
   4398 		    "failed to set configure command\n");
   4399 		return (err);
   4400 	}
   4401 
   4402 	/*
   4403 	 * remove all nodes in NIC
   4404 	 */
   4405 	(void) memset(&rm_sta, 0, sizeof (rm_sta));
   4406 	rm_sta.num_sta = 1;
   4407 	bcopy(bcast, rm_sta.addr, 6);
   4408 
   4409 	err = iwh_cmd(sc, REPLY_REMOVE_STA, &rm_sta, sizeof (iwh_rem_sta_t), 0);
   4410 	if (err != IWH_SUCCESS) {
   4411 		cmn_err(CE_WARN, "iwh_config(): "
   4412 		    "failed to remove broadcast node in hardware.\n");
   4413 		return (err);
   4414 	}
   4415 
   4416 	if ((sc->sc_dev_id != 0x423c) &&
   4417 	    (sc->sc_dev_id != 0x423d)) {
   4418 		/*
   4419 		 * configure TX power table
   4420 		 */
   4421 		err = iwh_tx_power_table(sc, 0);
   4422 		if (err != IWH_SUCCESS) {
   4423 			return (err);
   4424 		}
   4425 	}
   4426 
   4427 	/*
   4428 	 * add broadcast node so that we can send broadcast frame
   4429 	 */
   4430 	(void) memset(&node, 0, sizeof (node));
   4431 	(void) memset(node.sta.addr, 0xff, 6);
   4432 	node.mode = 0;
   4433 	node.sta.sta_id = IWH_BROADCAST_ID;
   4434 	node.station_flags = 0;
   4435 
   4436 	err = iwh_cmd(sc, REPLY_ADD_STA, &node, sizeof (node), 0);
   4437 	if (err != IWH_SUCCESS) {
   4438 		cmn_err(CE_WARN, "iwh_config(): "
   4439 		    "failed to add broadcast node\n");
   4440 		return (err);
   4441 	}
   4442 
   4443 	if ((sc->sc_dev_id != 0x423c) &&
   4444 	    (sc->sc_dev_id != 0x423d)) {
   4445 		/*
   4446 		 * TX_LINK_QUALITY cmd
   4447 		 */
   4448 		(void) memset(&link_quality, 0, sizeof (link_quality));
   4449 		for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
   4450 			masks |= RATE_MCS_CCK_MSK;
   4451 			masks |= RATE_MCS_ANT_B_MSK;
   4452 			masks &= ~RATE_MCS_ANT_A_MSK;
   4453 			link_quality.rate_n_flags[i] =
   4454 			    LE_32(iwh_rate_to_plcp(2) | masks);
   4455 		}
   4456 
   4457 		link_quality.general_params.single_stream_ant_msk = 2;
   4458 		link_quality.general_params.dual_stream_ant_msk = 3;
   4459 		link_quality.agg_params.agg_dis_start_th = 3;
   4460 		link_quality.agg_params.agg_time_limit = LE_16(4000);
   4461 		link_quality.sta_id = IWH_BROADCAST_ID;
   4462 		err = iwh_cmd(sc, REPLY_TX_LINK_QUALITY_CMD, &link_quality,
   4463 		    sizeof (link_quality), 0);
   4464 		if (err != IWH_SUCCESS) {
   4465 			cmn_err(CE_WARN, "iwh_config(): "
   4466 			    "failed to config link quality table\n");
   4467 			return (err);
   4468 		}
   4469 	}
   4470 
   4471 	return (err);
   4472 }
   4473 
   4474 /*
   4475  * quiesce(9E) entry point.
   4476  * This function is called when the system is single-threaded at high
   4477  * PIL with preemption disabled. Therefore, this function must not be
   4478  * blocked.
   4479  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
   4480  * DDI_FAILURE indicates an error condition and should almost never happen.
   4481  */
   4482 static int
   4483 iwh_quiesce(dev_info_t *dip)
   4484 {
   4485 	iwh_sc_t *sc;
   4486 
   4487 	sc = ddi_get_soft_state(iwh_soft_state_p, ddi_get_instance(dip));
   4488 	if (sc == NULL) {
   4489 		return (DDI_FAILURE);
   4490 	}
   4491 
   4492 #ifdef DEBUG
   4493 	/*
   4494 	 * by pass any messages, if it's quiesce
   4495 	 */
   4496 	iwh_dbg_flags = 0;
   4497 #endif
   4498 
   4499 	/*
   4500 	 * No more blocking is allowed while we are in the
   4501 	 * quiesce(9E) entry point.
   4502 	 */
   4503 	atomic_or_32(&sc->sc_flags, IWH_F_QUIESCED);
   4504 
   4505 	/*
   4506 	 * Disable and mask all interrupts.
   4507 	 */
   4508 	iwh_stop(sc);
   4509 
   4510 	return (DDI_SUCCESS);
   4511 }
   4512 
   4513 static void
   4514 iwh_stop_master(iwh_sc_t *sc)
   4515 {
   4516 	uint32_t tmp;
   4517 	int n;
   4518 
   4519 	tmp = IWH_READ(sc, CSR_RESET);
   4520 	IWH_WRITE(sc, CSR_RESET, tmp | CSR_RESET_REG_FLAG_STOP_MASTER);
   4521 
   4522 	tmp = IWH_READ(sc, CSR_GP_CNTRL);
   4523 	if ((tmp & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE) ==
   4524 	    CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE) {
   4525 		return;
   4526 	}
   4527 
   4528 	for (n = 0; n < 2000; n++) {
   4529 		if (IWH_READ(sc, CSR_RESET) &
   4530 		    CSR_RESET_REG_FLAG_MASTER_DISABLED) {
   4531 			break;
   4532 		}
   4533 		DELAY(1000);
   4534 	}
   4535 
   4536 #ifdef	DEBUG
   4537 	if (2000 == n) {
   4538 		IWH_DBG((IWH_DEBUG_HW, "iwh_stop_master(): "
   4539 		    "timeout waiting for master stop\n"));
   4540 	}
   4541 #endif
   4542 }
   4543 
   4544 static int
   4545 iwh_power_up(iwh_sc_t *sc)
   4546 {
   4547 	uint32_t tmp;
   4548 
   4549 	iwh_mac_access_enter(sc);
   4550 	tmp = iwh_reg_read(sc, ALM_APMG_PS_CTL);
   4551 	tmp &= ~APMG_PS_CTRL_REG_MSK_POWER_SRC;
   4552 	tmp |= APMG_PS_CTRL_REG_VAL_POWER_SRC_VMAIN;
   4553 	iwh_reg_write(sc, ALM_APMG_PS_CTL, tmp);
   4554 	iwh_mac_access_exit(sc);
   4555 
   4556 	DELAY(5000);
   4557 	return (IWH_SUCCESS);
   4558 }
   4559 
   4560 /*
   4561  * hardware initialization
   4562  */
   4563 static int
   4564 iwh_preinit(iwh_sc_t *sc)
   4565 {
   4566 	int n;
   4567 	uint8_t vlink;
   4568 	uint16_t radio_cfg;
   4569 	uint32_t tmp;
   4570 
   4571 	/*
   4572 	 * clear any pending interrupts
   4573 	 */
   4574 	IWH_WRITE(sc, CSR_INT, 0xffffffff);
   4575 
   4576 	tmp = IWH_READ(sc, CSR_GIO_CHICKEN_BITS);
   4577 	IWH_WRITE(sc, CSR_GIO_CHICKEN_BITS,
   4578 	    tmp | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
   4579 
   4580 	tmp = IWH_READ(sc, CSR_ANA_PLL_CFG);
   4581 	IWH_WRITE(sc, CSR_ANA_PLL_CFG, tmp | IWH_CSR_ANA_PLL_CFG);
   4582 
   4583 	tmp = IWH_READ(sc, CSR_GP_CNTRL);
   4584 	IWH_WRITE(sc, CSR_GP_CNTRL, tmp | CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
   4585 
   4586 	/*
   4587 	 * wait for clock ready
   4588 	 */
   4589 	for (n = 0; n < 1000; n++) {
   4590 		if (IWH_READ(sc, CSR_GP_CNTRL) &
   4591 		    CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY) {
   4592 			break;
   4593 		}
   4594 		DELAY(10);
   4595 	}
   4596 
   4597 	if (1000 == n) {
   4598 		return (ETIMEDOUT);
   4599 	}
   4600 
   4601 	iwh_mac_access_enter(sc);
   4602 
   4603 	iwh_reg_write(sc, ALM_APMG_CLK_EN, APMG_CLK_REG_VAL_DMA_CLK_RQT);
   4604 
   4605 	DELAY(20);
   4606 	tmp = iwh_reg_read(sc, ALM_APMG_PCIDEV_STT);
   4607 	iwh_reg_write(sc, ALM_APMG_PCIDEV_STT, tmp |
   4608 	    APMG_DEV_STATE_REG_VAL_L1_ACTIVE_DISABLE);
   4609 	iwh_mac_access_exit(sc);
   4610 
   4611 	radio_cfg = IWH_READ_EEP_SHORT(sc, EEP_SP_RADIO_CONFIGURATION);
   4612 	if (SP_RADIO_TYPE_MSK(radio_cfg) < SP_RADIO_TYPE_MAX) {
   4613 		tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   4614 		IWH_WRITE(sc, CSR_HW_IF_CONFIG_REG,
   4615 		    tmp | SP_RADIO_TYPE_MSK(radio_cfg) |
   4616 		    SP_RADIO_STEP_MSK(radio_cfg) |
   4617 		    SP_RADIO_DASH_MSK(radio_cfg));
   4618 	} else {
   4619 		cmn_err(CE_WARN, "iwh_preinit(): "
   4620 		    "radio configuration information in eeprom is wrong\n");
   4621 		return (IWH_FAIL);
   4622 	}
   4623 
   4624 
   4625 	IWH_WRITE(sc, CSR_INT_COALESCING, 512 / 32);
   4626 
   4627 	(void) iwh_power_up(sc);
   4628 
   4629 	if ((sc->sc_rev & 0x80) == 0x80 && (sc->sc_rev & 0x7f) < 8) {
   4630 		tmp = ddi_get32(sc->sc_cfg_handle,
   4631 		    (uint32_t *)(sc->sc_cfg_base + 0xe8));
   4632 		ddi_put32(sc->sc_cfg_handle,
   4633 		    (uint32_t *)(sc->sc_cfg_base + 0xe8),
   4634 		    tmp & ~(1 << 11));
   4635 	}
   4636 
   4637 	vlink = ddi_get8(sc->sc_cfg_handle,
   4638 	    (uint8_t *)(sc->sc_cfg_base + 0xf0));
   4639 	ddi_put8(sc->sc_cfg_handle, (uint8_t *)(sc->sc_cfg_base + 0xf0),
   4640 	    vlink & ~2);
   4641 
   4642 	tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   4643 	tmp |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
   4644 	    CSR_HW_IF_CONFIG_REG_BIT_MAC_SI;
   4645 	IWH_WRITE(sc, CSR_SW_VER, tmp);
   4646 
   4647 	/*
   4648 	 * make sure power supply on each part of the hardware
   4649 	 */
   4650 	iwh_mac_access_enter(sc);
   4651 	tmp = iwh_reg_read(sc, ALM_APMG_PS_CTL);
   4652 	tmp |= APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ;
   4653 	iwh_reg_write(sc, ALM_APMG_PS_CTL, tmp);
   4654 	DELAY(5);
   4655 
   4656 	tmp = iwh_reg_read(sc, ALM_APMG_PS_CTL);
   4657 	tmp &= ~APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ;
   4658 	iwh_reg_write(sc, ALM_APMG_PS_CTL, tmp);
   4659 	iwh_mac_access_exit(sc);
   4660 
   4661 	return (IWH_SUCCESS);
   4662 }
   4663 
   4664 /*
   4665  * set up semphore flag to own EEPROM
   4666  */
   4667 static int
   4668 iwh_eep_sem_down(iwh_sc_t *sc)
   4669 {
   4670 	int count1, count2;
   4671 	uint32_t tmp;
   4672 
   4673 	for (count1 = 0; count1 < 1000; count1++) {
   4674 		tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   4675 		IWH_WRITE(sc, CSR_HW_IF_CONFIG_REG,
   4676 		    tmp | CSR_HW_IF_CONFIG_REG_EEP_SEM);
   4677 
   4678 		for (count2 = 0; count2 < 2; count2++) {
   4679 			if (IWH_READ(sc, CSR_HW_IF_CONFIG_REG) &
   4680 			    CSR_HW_IF_CONFIG_REG_EEP_SEM) {
   4681 				return (IWH_SUCCESS);
   4682 			}
   4683 			DELAY(10000);
   4684 		}
   4685 	}
   4686 
   4687 	return (IWH_FAIL);
   4688 }
   4689 
   4690 /*
   4691  * reset semphore flag to release EEPROM
   4692  */
   4693 static void
   4694 iwh_eep_sem_up(iwh_sc_t *sc)
   4695 {
   4696 	uint32_t tmp;
   4697 
   4698 	tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   4699 	IWH_WRITE(sc, CSR_HW_IF_CONFIG_REG,
   4700 	    tmp & (~CSR_HW_IF_CONFIG_REG_EEP_SEM));
   4701 }
   4702 
   4703 /*
   4704  * This function read all infomation from eeprom
   4705  */
   4706 static int
   4707 iwh_eep_load(iwh_sc_t *sc)
   4708 {
   4709 	int i, rr;
   4710 	uint32_t rv, tmp, eep_gp;
   4711 	uint16_t addr, eep_sz = sizeof (sc->sc_eep_map);
   4712 	uint16_t *eep_p = (uint16_t *)&sc->sc_eep_map;
   4713 
   4714 	/*
   4715 	 * read eeprom gp register in CSR
   4716 	 */
   4717 	eep_gp = IWH_READ(sc, CSR_EEPROM_GP);
   4718 	if ((eep_gp & CSR_EEPROM_GP_VALID_MSK) ==
   4719 	    CSR_EEPROM_GP_BAD_SIGNATURE) {
   4720 		IWH_DBG((IWH_DEBUG_EEPROM, "iwh_eep_load(): "
   4721 		    "not find eeprom\n"));
   4722 		return (IWH_FAIL);
   4723 	}
   4724 
   4725 	rr = iwh_eep_sem_down(sc);
   4726 	if (rr != 0) {
   4727 		IWH_DBG((IWH_DEBUG_EEPROM, "iwh_eep_load(): "
   4728 		    "driver failed to own EEPROM\n"));
   4729 		return (IWH_FAIL);
   4730 	}
   4731 
   4732 	for (addr = 0; addr < eep_sz; addr += 2) {
   4733 		IWH_WRITE(sc, CSR_EEPROM_REG, addr<<1);
   4734 		tmp = IWH_READ(sc, CSR_EEPROM_REG);
   4735 		IWH_WRITE(sc, CSR_EEPROM_REG, tmp & ~(0x2));
   4736 
   4737 		for (i = 0; i < 10; i++) {
   4738 			rv = IWH_READ(sc, CSR_EEPROM_REG);
   4739 			if (rv & 1) {
   4740 				break;
   4741 			}
   4742 			DELAY(10);
   4743 		}
   4744 
   4745 		if (!(rv & 1)) {
   4746 			IWH_DBG((IWH_DEBUG_EEPROM, "iwh_eep_load(): "
   4747 			    "time out when read eeprome\n"));
   4748 			iwh_eep_sem_up(sc);
   4749 			return (IWH_FAIL);
   4750 		}
   4751 
   4752 		eep_p[addr/2] = LE_16(rv >> 16);
   4753 	}
   4754 
   4755 	iwh_eep_sem_up(sc);
   4756 	return (IWH_SUCCESS);
   4757 }
   4758 
   4759 /*
   4760  * initialize mac address in ieee80211com_t struct
   4761  */
   4762 static void
   4763 iwh_get_mac_from_eep(iwh_sc_t *sc)
   4764 {
   4765 	ieee80211com_t *ic = &sc->sc_ic;
   4766 
   4767 	IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->sc_eep_map[EEP_MAC_ADDRESS]);
   4768 
   4769 	IWH_DBG((IWH_DEBUG_EEPROM, "iwh_get_mac_from_eep(): "
   4770 	    "mac:%2x:%2x:%2x:%2x:%2x:%2x\n",
   4771 	    ic->ic_macaddr[0], ic->ic_macaddr[1], ic->ic_macaddr[2],
   4772 	    ic->ic_macaddr[3], ic->ic_macaddr[4], ic->ic_macaddr[5]));
   4773 }
   4774 
   4775 /*
   4776  * main initialization function
   4777  */
   4778 static int
   4779 iwh_init(iwh_sc_t *sc)
   4780 {
   4781 	int err = IWH_FAIL;
   4782 	clock_t clk;
   4783 
   4784 	/*
   4785 	 * release buffer for calibration
   4786 	 */
   4787 	iwh_release_calib_buffer(sc);
   4788 
   4789 	mutex_enter(&sc->sc_glock);
   4790 	atomic_and_32(&sc->sc_flags, ~IWH_F_FW_INIT);
   4791 
   4792 	err = iwh_init_common(sc);
   4793 	if (err != IWH_SUCCESS) {
   4794 		mutex_exit(&sc->sc_glock);
   4795 		return (IWH_FAIL);
   4796 	}
   4797 
   4798 	/*
   4799 	 * backup ucode data part for future use.
   4800 	 */
   4801 	bcopy(sc->sc_dma_fw_data.mem_va,
   4802 	    sc->sc_dma_fw_data_bak.mem_va,
   4803 	    sc->sc_dma_fw_data.alength);
   4804 
   4805 	/* load firmware init segment into NIC */
   4806 	err = iwh_load_init_firmware(sc);
   4807 	if (err != IWH_SUCCESS) {
   4808 		cmn_err(CE_WARN, "iwh_init(): "
   4809 		    "failed to setup init firmware\n");
   4810 		mutex_exit(&sc->sc_glock);
   4811 		return (IWH_FAIL);
   4812 	}
   4813 
   4814 	/*
   4815 	 * now press "execute" start running
   4816 	 */
   4817 	IWH_WRITE(sc, CSR_RESET, 0);
   4818 
   4819 	clk = ddi_get_lbolt() + drv_usectohz(1000000);
   4820 	while (!(sc->sc_flags & IWH_F_FW_INIT)) {
   4821 		if (cv_timedwait(&sc->sc_ucode_cv,
   4822 		    &sc->sc_glock, clk) < 0) {
   4823 			break;
   4824 		}
   4825 	}
   4826 
   4827 	if (!(sc->sc_flags & IWH_F_FW_INIT)) {
   4828 		cmn_err(CE_WARN, "iwh_init(): "
   4829 		    "failed to process init alive.\n");
   4830 		mutex_exit(&sc->sc_glock);
   4831 		return (IWH_FAIL);
   4832 	}
   4833 
   4834 	mutex_exit(&sc->sc_glock);
   4835 
   4836 	/*
   4837 	 * stop chipset for initializing chipset again
   4838 	 */
   4839 	iwh_stop(sc);
   4840 
   4841 	mutex_enter(&sc->sc_glock);
   4842 	atomic_and_32(&sc->sc_flags, ~IWH_F_FW_INIT);
   4843 
   4844 	err = iwh_init_common(sc);
   4845 	if (err != IWH_SUCCESS) {
   4846 		mutex_exit(&sc->sc_glock);
   4847 		return (IWH_FAIL);
   4848 	}
   4849 
   4850 	/*
   4851 	 * load firmware run segment into NIC
   4852 	 */
   4853 	err = iwh_load_run_firmware(sc);
   4854 	if (err != IWH_SUCCESS) {
   4855 		cmn_err(CE_WARN, "iwh_init(): "
   4856 		    "failed to setup run firmware\n");
   4857 		mutex_exit(&sc->sc_glock);
   4858 		return (IWH_FAIL);
   4859 	}
   4860 
   4861 	/*
   4862 	 * now press "execute" start running
   4863 	 */
   4864 	IWH_WRITE(sc, CSR_RESET, 0);
   4865 
   4866 	clk = ddi_get_lbolt() + drv_usectohz(1000000);
   4867 	while (!(sc->sc_flags & IWH_F_FW_INIT)) {
   4868 		if (cv_timedwait(&sc->sc_ucode_cv,
   4869 		    &sc->sc_glock, clk) < 0) {
   4870 			break;
   4871 		}
   4872 	}
   4873 
   4874 	if (!(sc->sc_flags & IWH_F_FW_INIT)) {
   4875 		cmn_err(CE_WARN, "iwh_init(): "
   4876 		    "failed to process runtime alive.\n");
   4877 		mutex_exit(&sc->sc_glock);
   4878 		return (IWH_FAIL);
   4879 	}
   4880 
   4881 	mutex_exit(&sc->sc_glock);
   4882 
   4883 	DELAY(1000);
   4884 
   4885 	mutex_enter(&sc->sc_glock);
   4886 	atomic_and_32(&sc->sc_flags, ~IWH_F_FW_INIT);
   4887 
   4888 	/*
   4889 	 * at this point, the firmware is loaded OK, then config the hardware
   4890 	 * with the ucode API, including rxon, txpower, etc.
   4891 	 */
   4892 	err = iwh_config(sc);
   4893 	if (err) {
   4894 		cmn_err(CE_WARN, "iwh_init(): "
   4895 		    "failed to configure device\n");
   4896 		mutex_exit(&sc->sc_glock);
   4897 		return (IWH_FAIL);
   4898 	}
   4899 
   4900 	/*
   4901 	 * at this point, hardware may receive beacons :)
   4902 	 */
   4903 	mutex_exit(&sc->sc_glock);
   4904 	return (IWH_SUCCESS);
   4905 }
   4906 
   4907 /*
   4908  * stop or disable NIC
   4909  */
   4910 static void
   4911 iwh_stop(iwh_sc_t *sc)
   4912 {
   4913 	uint32_t tmp;
   4914 	int i;
   4915 
   4916 	/*
   4917 	 * by pass if it's quiesced
   4918 	 */
   4919 	if (!(sc->sc_flags & IWH_F_QUIESCED)) {
   4920 		mutex_enter(&sc->sc_glock);
   4921 	}
   4922 
   4923 	IWH_WRITE(sc, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
   4924 	/*
   4925 	 * disable interrupts
   4926 	 */
   4927 	IWH_WRITE(sc, CSR_INT_MASK, 0);
   4928 	IWH_WRITE(sc, CSR_INT, CSR_INI_SET_MASK);
   4929 	IWH_WRITE(sc, CSR_FH_INT_STATUS, 0xffffffff);
   4930 
   4931 	/*
   4932 	 * reset all Tx rings
   4933 	 */
   4934 	for (i = 0; i < IWH_NUM_QUEUES; i++) {
   4935 		iwh_reset_tx_ring(sc, &sc->sc_txq[i]);
   4936 	}
   4937 
   4938 	/*
   4939 	 * reset Rx ring
   4940 	 */
   4941 	iwh_reset_rx_ring(sc);
   4942 
   4943 	iwh_mac_access_enter(sc);
   4944 	iwh_reg_write(sc, ALM_APMG_CLK_DIS, APMG_CLK_REG_VAL_DMA_CLK_RQT);
   4945 	iwh_mac_access_exit(sc);
   4946 
   4947 	DELAY(5);
   4948 
   4949 	iwh_stop_master(sc);
   4950 
   4951 	mutex_enter(&sc->sc_mt_lock);
   4952 	sc->sc_tx_timer = 0;
   4953 	mutex_exit(&sc->sc_mt_lock);
   4954 
   4955 	tmp = IWH_READ(sc, CSR_RESET);
   4956 	IWH_WRITE(sc, CSR_RESET, tmp | CSR_RESET_REG_FLAG_SW_RESET);
   4957 
   4958 	/*
   4959 	 * by pass if it's quiesced
   4960 	 */
   4961 	if (!(sc->sc_flags & IWH_F_QUIESCED)) {
   4962 		mutex_exit(&sc->sc_glock);
   4963 	}
   4964 }
   4965 
   4966 /*
   4967  * Naive implementation of the Adaptive Multi Rate Retry algorithm:
   4968  * "IEEE 802.11 Rate Adaptation: A Practical Approach"
   4969  * Mathieu Lacage, Hossein Manshaei, Thierry Turletti
   4970  * INRIA Sophia - Projet Planete
   4971  * http://www-sop.inria.fr/rapports/sophia/RR-5208.html
   4972  */
   4973 #define	is_success(amrr)	\
   4974 	((amrr)->retrycnt < (amrr)->txcnt / 10)
   4975 #define	is_failure(amrr)	\
   4976 	((amrr)->retrycnt > (amrr)->txcnt / 3)
   4977 #define	is_enough(amrr)		\
   4978 	((amrr)->txcnt > 200)
   4979 #define	not_very_few(amrr)	\
   4980 	((amrr)->txcnt > 40)
   4981 #define	is_min_rate(in)		\
   4982 	(0 == (in)->in_txrate)
   4983 #define	is_max_rate(in)		\
   4984 	((in)->in_rates.ir_nrates - 1 == (in)->in_txrate)
   4985 #define	increase_rate(in)	\
   4986 	((in)->in_txrate++)
   4987 #define	decrease_rate(in)	\
   4988 	((in)->in_txrate--)
   4989 #define	reset_cnt(amrr)		\
   4990 	{ (amrr)->txcnt = (amrr)->retrycnt = 0; }
   4991 
   4992 #define	IWH_AMRR_MIN_SUCCESS_THRESHOLD	 1
   4993 #define	IWH_AMRR_MAX_SUCCESS_THRESHOLD	15
   4994 
   4995 static void
   4996 iwh_amrr_init(iwh_amrr_t *amrr)
   4997 {
   4998 	amrr->success = 0;
   4999 	amrr->recovery = 0;
   5000 	amrr->txcnt = amrr->retrycnt = 0;
   5001 	amrr->success_threshold = IWH_AMRR_MIN_SUCCESS_THRESHOLD;
   5002 	amrr->ht_mcs_idx = 0;	/* 6Mbps */
   5003 }
   5004 
   5005 static void
   5006 iwh_amrr_timeout(iwh_sc_t *sc)
   5007 {
   5008 	ieee80211com_t *ic = &sc->sc_ic;
   5009 
   5010 	IWH_DBG((IWH_DEBUG_RATECTL, "iwh_amrr_timeout(): "
   5011 	    "enter\n"));
   5012 
   5013 	if (IEEE80211_M_STA == ic->ic_opmode) {
   5014 		iwh_amrr_ratectl(NULL, ic->ic_bss);
   5015 	} else {
   5016 		ieee80211_iterate_nodes(&ic->ic_sta, iwh_amrr_ratectl, NULL);
   5017 	}
   5018 
   5019 	sc->sc_clk = ddi_get_lbolt();
   5020 }
   5021 
   5022 static int
   5023 iwh_is_max_rate(ieee80211_node_t *in)
   5024 {
   5025 	int i;
   5026 	iwh_amrr_t *amrr = (iwh_amrr_t *)in;
   5027 	uint8_t r = (uint8_t)amrr->ht_mcs_idx;
   5028 	ieee80211com_t *ic = in->in_ic;
   5029 	iwh_sc_t *sc = (iwh_sc_t *)ic;
   5030 
   5031 	if (in->in_flags & IEEE80211_NODE_HT) {
   5032 		for (i = in->in_htrates.rs_nrates - 1; i >= 0; i--) {
   5033 			r = in->in_htrates.rs_rates[i] &
   5034 			    IEEE80211_RATE_VAL;
   5035 			if (sc->sc_ht_conf.tx_support_mcs[r/8] &
   5036 			    (1 << (r%8))) {
   5037 				break;
   5038 			}
   5039 		}
   5040 
   5041 		return (r == (uint8_t)amrr->ht_mcs_idx);
   5042 	} else {
   5043 		return (is_max_rate(in));
   5044 	}
   5045 }
   5046 
   5047 static int
   5048 iwh_is_min_rate(ieee80211_node_t *in)
   5049 {
   5050 	int i;
   5051 	uint8_t r = 0;
   5052 	iwh_amrr_t *amrr = (iwh_amrr_t *)in;
   5053 	ieee80211com_t *ic = in->in_ic;
   5054 	iwh_sc_t *sc = (iwh_sc_t *)ic;
   5055 
   5056 	if (in->in_flags & IEEE80211_NODE_HT) {
   5057 		for (i = 0; i < in->in_htrates.rs_nrates; i++) {
   5058 			r = in->in_htrates.rs_rates[i] &
   5059 			    IEEE80211_RATE_VAL;
   5060 			if (sc->sc_ht_conf.tx_support_mcs[r/8] &
   5061 			    (1 << (r%8))) {
   5062 				break;
   5063 			}
   5064 		}
   5065 
   5066 		return (r == (uint8_t)amrr->ht_mcs_idx);
   5067 	} else {
   5068 		return (is_min_rate(in));
   5069 	}
   5070 }
   5071 
   5072 static void
   5073 iwh_increase_rate(ieee80211_node_t *in)
   5074 {
   5075 	int i;
   5076 	uint8_t r;
   5077 	iwh_amrr_t *amrr = (iwh_amrr_t *)in;
   5078 	ieee80211com_t *ic = in->in_ic;
   5079 	iwh_sc_t *sc = (iwh_sc_t *)ic;
   5080 
   5081 	if (in->in_flags & IEEE80211_NODE_HT) {
   5082 again:
   5083 		amrr->ht_mcs_idx++;
   5084 
   5085 		for (i = 0; i < in->in_htrates.rs_nrates; i++) {
   5086 			r = in->in_htrates.rs_rates[i] &
   5087 			    IEEE80211_RATE_VAL;
   5088 			if ((r == (uint8_t)amrr->ht_mcs_idx) &&
   5089 			    (sc->sc_ht_conf.tx_support_mcs[r/8] &
   5090 			    (1 << (r%8)))) {
   5091 				break;
   5092 			}
   5093 		}
   5094 
   5095 		if (i >= in->in_htrates.rs_nrates) {
   5096 			goto again;
   5097 		}
   5098 	} else {
   5099 		increase_rate(in);
   5100 	}
   5101 }
   5102 
   5103 static void
   5104 iwh_decrease_rate(ieee80211_node_t *in)
   5105 {
   5106 	int i;
   5107 	uint8_t r;
   5108 	iwh_amrr_t *amrr = (iwh_amrr_t *)in;
   5109 	ieee80211com_t *ic = in->in_ic;
   5110 	iwh_sc_t *sc = (iwh_sc_t *)ic;
   5111 
   5112 	if (in->in_flags & IEEE80211_NODE_HT) {
   5113 again:
   5114 		amrr->ht_mcs_idx--;
   5115 
   5116 		for (i = 0; i < in->in_htrates.rs_nrates; i++) {
   5117 			r = in->in_htrates.rs_rates[i] &
   5118 			    IEEE80211_RATE_VAL;
   5119 			if ((r == (uint8_t)amrr->ht_mcs_idx) &&
   5120 			    (sc->sc_ht_conf.tx_support_mcs[r/8] &
   5121 			    (1 << (r%8)))) {
   5122 				break;
   5123 			}
   5124 		}
   5125 
   5126 		if (i >= in->in_htrates.rs_nrates) {
   5127 			goto again;
   5128 		}
   5129 	} else {
   5130 		decrease_rate(in);
   5131 	}
   5132 }
   5133 
   5134 /* ARGSUSED */
   5135 static void
   5136 iwh_amrr_ratectl(void *arg, ieee80211_node_t *in)
   5137 {
   5138 	iwh_amrr_t *amrr = (iwh_amrr_t *)in;
   5139 	int need_change = 0;
   5140 
   5141 	if (is_success(amrr) && is_enough(amrr)) {
   5142 		amrr->success++;
   5143 		if (amrr->success >= amrr->success_threshold &&
   5144 		    !iwh_is_max_rate(in)) {
   5145 			amrr->recovery = 1;
   5146 			amrr->success = 0;
   5147 			iwh_increase_rate(in);
   5148 			IWH_DBG((IWH_DEBUG_RATECTL, "iwh_amrr_ratectl(): "
   5149 			    "AMRR increasing rate %d "
   5150 			    "(txcnt=%d retrycnt=%d), mcs_idx=%d\n",
   5151 			    in->in_txrate, amrr->txcnt,
   5152 			    amrr->retrycnt, amrr->ht_mcs_idx));
   5153 			need_change = 1;
   5154 		} else {
   5155 			amrr->recovery = 0;
   5156 		}
   5157 	} else if (not_very_few(amrr) && is_failure(amrr)) {
   5158 		amrr->success = 0;
   5159 		if (!iwh_is_min_rate(in)) {
   5160 			if (amrr->recovery) {
   5161 				amrr->success_threshold++;
   5162 				if (amrr->success_threshold >
   5163 				    IWH_AMRR_MAX_SUCCESS_THRESHOLD) {
   5164 					amrr->success_threshold =
   5165 					    IWH_AMRR_MAX_SUCCESS_THRESHOLD;
   5166 				}
   5167 			} else {
   5168 				amrr->success_threshold =
   5169 				    IWH_AMRR_MIN_SUCCESS_THRESHOLD;
   5170 			}
   5171 			iwh_decrease_rate(in);
   5172 			IWH_DBG((IWH_DEBUG_RATECTL, "iwh_amrr_ratectl(): "
   5173 			    "AMRR decreasing rate %d "
   5174 			    "(txcnt=%d retrycnt=%d), mcs_idx=%d\n",
   5175 			    in->in_txrate, amrr->txcnt,
   5176 			    amrr->retrycnt, amrr->ht_mcs_idx));
   5177 			need_change = 1;
   5178 		}
   5179 		amrr->recovery = 0;	/* paper is incorrect */
   5180 	}
   5181 
   5182 	if (is_enough(amrr) || need_change) {
   5183 		reset_cnt(amrr);
   5184 	}
   5185 }
   5186 
   5187 /*
   5188  * translate indirect address in eeprom to direct address
   5189  * in eeprom and return address of entry whos indirect address
   5190  * is indi_addr
   5191  */
   5192 static uint8_t *
   5193 iwh_eep_addr_trans(iwh_sc_t *sc, uint32_t indi_addr)
   5194 {
   5195 	uint32_t di_addr;
   5196 	uint16_t temp;
   5197 
   5198 	if (!(indi_addr & INDIRECT_ADDRESS)) {
   5199 		di_addr = indi_addr;
   5200 		return (&sc->sc_eep_map[di_addr]);
   5201 	}
   5202 
   5203 	switch (indi_addr & INDIRECT_TYPE_MSK) {
   5204 	case INDIRECT_GENERAL:
   5205 		temp = IWH_READ_EEP_SHORT(sc, EEP_LINK_GENERAL);
   5206 		break;
   5207 
   5208 	case	INDIRECT_HOST:
   5209 		temp = IWH_READ_EEP_SHORT(sc, EEP_LINK_HOST);
   5210 		break;
   5211 
   5212 	case	INDIRECT_REGULATORY:
   5213 		temp = IWH_READ_EEP_SHORT(sc, EEP_LINK_REGULATORY);
   5214 		break;
   5215 
   5216 	case	INDIRECT_CALIBRATION:
   5217 		temp = IWH_READ_EEP_SHORT(sc, EEP_LINK_CALIBRATION);
   5218 		break;
   5219 
   5220 	case	INDIRECT_PROCESS_ADJST:
   5221 		temp = IWH_READ_EEP_SHORT(sc, EEP_LINK_PROCESS_ADJST);
   5222 		break;
   5223 
   5224 	case	INDIRECT_OTHERS:
   5225 		temp = IWH_READ_EEP_SHORT(sc, EEP_LINK_OTHERS);
   5226 		break;
   5227 
   5228 	default:
   5229 		temp = 0;
   5230 		cmn_err(CE_WARN, "iwh_eep_addr_trans(): "
   5231 		    "incorrect indirect eeprom address.\n");
   5232 		break;
   5233 	}
   5234 
   5235 	di_addr = (indi_addr & ADDRESS_MSK) + (temp << 1);
   5236 
   5237 	return (&sc->sc_eep_map[di_addr]);
   5238 }
   5239 
   5240 /*
   5241  * loade a section of ucode into NIC
   5242  */
   5243 static int
   5244 iwh_put_seg_fw(iwh_sc_t *sc, uint32_t addr_s, uint32_t addr_d, uint32_t len)
   5245 {
   5246 
   5247 	iwh_mac_access_enter(sc);
   5248 
   5249 	IWH_WRITE(sc, IWH_FH_TCSR_CHNL_TX_CONFIG_REG(IWH_FH_SRVC_CHNL),
   5250 	    IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
   5251 
   5252 	IWH_WRITE(sc, IWH_FH_SRVC_CHNL_SRAM_ADDR_REG(IWH_FH_SRVC_CHNL), addr_d);
   5253 
   5254 	IWH_WRITE(sc, IWH_FH_TFDIB_CTRL0_REG(IWH_FH_SRVC_CHNL),
   5255 	    (addr_s & FH_MEM_TFDIB_DRAM_ADDR_LSB_MASK));
   5256 
   5257 	IWH_WRITE(sc, IWH_FH_TFDIB_CTRL1_REG(IWH_FH_SRVC_CHNL), len);
   5258 
   5259 	IWH_WRITE(sc, IWH_FH_TCSR_CHNL_TX_BUF_STS_REG(IWH_FH_SRVC_CHNL),
   5260 	    (1 << IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM) |
   5261 	    (1 << IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX) |
   5262 	    IWH_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
   5263 
   5264 	IWH_WRITE(sc, IWH_FH_TCSR_CHNL_TX_CONFIG_REG(IWH_FH_SRVC_CHNL),
   5265 	    IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
   5266 	    IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL |
   5267 	    IWH_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
   5268 
   5269 	iwh_mac_access_exit(sc);
   5270 
   5271 	return (IWH_SUCCESS);
   5272 }
   5273 
   5274 /*
   5275  * necessary setting during alive notification
   5276  */
   5277 static int
   5278 iwh_alive_common(iwh_sc_t *sc)
   5279 {
   5280 	uint32_t base;
   5281 	uint32_t i;
   5282 	iwh_wimax_coex_cmd_t w_cmd;
   5283 	iwh_calibration_crystal_cmd_t c_cmd;
   5284 	uint32_t rv = IWH_FAIL;
   5285 
   5286 	/*
   5287 	 * initialize SCD related registers to make TX work.
   5288 	 */
   5289 	iwh_mac_access_enter(sc);
   5290 
   5291 	/*
   5292 	 * read sram address of data base.
   5293 	 */
   5294 	sc->sc_scd_base = iwh_reg_read(sc, IWH_SCD_SRAM_BASE_ADDR);
   5295 
   5296 	for (base = sc->sc_scd_base + IWH_SCD_CONTEXT_DATA_OFFSET;
   5297 	    base < sc->sc_scd_base + IWH_SCD_TX_STTS_BITMAP_OFFSET;
   5298 	    base += 4) {
   5299 		iwh_mem_write(sc, base, 0);
   5300 	}
   5301 
   5302 	for (; base < sc->sc_scd_base + IWH_SCD_TRANSLATE_TBL_OFFSET;
   5303 	    base += 4) {
   5304 		iwh_mem_write(sc, base, 0);
   5305 	}
   5306 
   5307 	for (i = 0; i < sizeof (uint16_t) * IWH_NUM_QUEUES; i += 4) {
   5308 		iwh_mem_write(sc, base + i, 0);
   5309 	}
   5310 
   5311 	iwh_reg_write(sc, IWH_SCD_DRAM_BASE_ADDR,
   5312 	    sc->sc_dma_sh.cookie.dmac_address >> 10);
   5313 
   5314 	iwh_reg_write(sc, IWH_SCD_QUEUECHAIN_SEL,
   5315 	    IWH_SCD_QUEUECHAIN_SEL_ALL(IWH_NUM_QUEUES));
   5316 
   5317 	iwh_reg_write(sc, IWH_SCD_AGGR_SEL, 0);
   5318 
   5319 	for (i = 0; i < IWH_NUM_QUEUES; i++) {
   5320 		iwh_reg_write(sc, IWH_SCD_QUEUE_RDPTR(i), 0);
   5321 		IWH_WRITE(sc, HBUS_TARG_WRPTR, 0 | (i << 8));
   5322 		iwh_mem_write(sc, sc->sc_scd_base +
   5323 		    IWH_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
   5324 		iwh_mem_write(sc, sc->sc_scd_base +
   5325 		    IWH_SCD_CONTEXT_QUEUE_OFFSET(i) +
   5326 		    sizeof (uint32_t),
   5327 		    ((SCD_WIN_SIZE << IWH_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
   5328 		    IWH_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
   5329 		    ((SCD_FRAME_LIMIT <<
   5330 		    IWH_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
   5331 		    IWH_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
   5332 	}
   5333 
   5334 	iwh_reg_write(sc, IWH_SCD_INTERRUPT_MASK, (1 << IWH_NUM_QUEUES) - 1);
   5335 
   5336 	iwh_reg_write(sc, (IWH_SCD_BASE + 0x10),
   5337 	    SCD_TXFACT_REG_TXFIFO_MASK(0, 7));
   5338 
   5339 	IWH_WRITE(sc, HBUS_TARG_WRPTR, (IWH_CMD_QUEUE_NUM << 8));
   5340 	iwh_reg_write(sc, IWH_SCD_QUEUE_RDPTR(IWH_CMD_QUEUE_NUM), 0);
   5341 
   5342 	/*
   5343 	 * queue 0-7 map to FIFO 0-7 and
   5344 	 * all queues work under FIFO mode(none-scheduler_ack)
   5345 	 */
   5346 	for (i = 0; i < 4; i++) {
   5347 		iwh_reg_write(sc, IWH_SCD_QUEUE_STATUS_BITS(i),
   5348 		    (1 << IWH_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
   5349 		    ((3-i) << IWH_SCD_QUEUE_STTS_REG_POS_TXF) |
   5350 		    (1 << IWH_SCD_QUEUE_STTS_REG_POS_WSL) |
   5351 		    IWH_SCD_QUEUE_STTS_REG_MSK);
   5352 	}
   5353 
   5354 	iwh_reg_write(sc, IWH_SCD_QUEUE_STATUS_BITS(IWH_CMD_QUEUE_NUM),
   5355 	    (1 << IWH_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
   5356 	    (IWH_CMD_FIFO_NUM << IWH_SCD_QUEUE_STTS_REG_POS_TXF) |
   5357 	    (1 << IWH_SCD_QUEUE_STTS_REG_POS_WSL) |
   5358 	    IWH_SCD_QUEUE_STTS_REG_MSK);
   5359 
   5360 	for (i = 5; i < 7; i++) {
   5361 		iwh_reg_write(sc, IWH_SCD_QUEUE_STATUS_BITS(i),
   5362 		    (1 << IWH_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
   5363 		    (i << IWH_SCD_QUEUE_STTS_REG_POS_TXF) |
   5364 		    (1 << IWH_SCD_QUEUE_STTS_REG_POS_WSL) |
   5365 		    IWH_SCD_QUEUE_STTS_REG_MSK);
   5366 	}
   5367 
   5368 	iwh_mac_access_exit(sc);
   5369 
   5370 	(void) memset(&w_cmd, 0, sizeof (w_cmd));
   5371 
   5372 	rv = iwh_cmd(sc, COEX_PRIORITY_TABLE_CMD, &w_cmd, sizeof (w_cmd), 1);
   5373 	if (rv != IWH_SUCCESS) {
   5374 		cmn_err(CE_WARN, "iwh_alive_common(): "
   5375 		    "failed to send wimax coexist command.\n");
   5376 		return (rv);
   5377 	}
   5378 
   5379 	if ((sc->sc_dev_id != 0x423c) &&
   5380 	    (sc->sc_dev_id != 0x423d)) {
   5381 		(void) memset(&c_cmd, 0, sizeof (c_cmd));
   5382 
   5383 		c_cmd.opCode = PHY_CALIBRATE_CRYSTAL_FRQ_CMD;
   5384 		c_cmd.data.cap_pin1 = LE_16(sc->sc_eep_calib->xtal_calib[0]);
   5385 		c_cmd.data.cap_pin2 = LE_16(sc->sc_eep_calib->xtal_calib[1]);
   5386 
   5387 		rv = iwh_cmd(sc, REPLY_PHY_CALIBRATION_CMD,
   5388 		    &c_cmd, sizeof (c_cmd), 1);
   5389 		if (rv != IWH_SUCCESS) {
   5390 			cmn_err(CE_WARN, "iwh_alive_common(): "
   5391 			    "failed to send crystal"
   5392 			    "frq calibration command.\n");
   5393 			return (rv);
   5394 		}
   5395 
   5396 		/*
   5397 		 * make sure crystal frequency calibration ready
   5398 		 * before next operations.
   5399 		 */
   5400 		DELAY(1000);
   5401 	}
   5402 
   5403 	return (IWH_SUCCESS);
   5404 }
   5405 
   5406 /*
   5407  * save results of calibration from ucode
   5408  */
   5409 static void
   5410 iwh_save_calib_result(iwh_sc_t *sc, iwh_rx_desc_t *desc)
   5411 {
   5412 	struct iwh_calib_results *res_p = &sc->sc_calib_results;
   5413 	struct iwh_calib_hdr *calib_hdr = (struct iwh_calib_hdr *)(desc + 1);
   5414 	int len = LE_32(desc->len);
   5415 
   5416 	/*
   5417 	 * ensure the size of buffer is not too big
   5418 	 */
   5419 	len = (len & FH_RSCSR_FRAME_SIZE_MASK) - 4;
   5420 
   5421 	switch (calib_hdr->op_code) {
   5422 	case PHY_CALIBRATE_LO_CMD:
   5423 		if (NULL == res_p->lo_res) {
   5424 			res_p->lo_res = kmem_alloc(len, KM_NOSLEEP);
   5425 		}
   5426 
   5427 		if (NULL == res_p->lo_res) {
   5428 			cmn_err(CE_WARN, "iwh_save_calib_result(): "
   5429 			    "failed to allocate memory.\n");
   5430 			return;
   5431 		}
   5432 
   5433 		res_p->lo_res_len = len;
   5434 		bcopy(calib_hdr, res_p->lo_res, len);
   5435 		break;
   5436 
   5437 	case PHY_CALIBRATE_TX_IQ_CMD:
   5438 		if (NULL == res_p->tx_iq_res) {
   5439 			res_p->tx_iq_res = kmem_alloc(len, KM_NOSLEEP);
   5440 		}
   5441 
   5442 		if (NULL == res_p->tx_iq_res) {
   5443 			cmn_err(CE_WARN, "iwh_save_calib_result(): "
   5444 			    "failed to allocate memory.\n");
   5445 			return;
   5446 		}
   5447 
   5448 		res_p->tx_iq_res_len = len;
   5449 		bcopy(calib_hdr, res_p->tx_iq_res, len);
   5450 		break;
   5451 
   5452 	case PHY_CALIBRATE_TX_IQ_PERD_CMD:
   5453 		if (NULL == res_p->tx_iq_perd_res) {
   5454 			res_p->tx_iq_perd_res = kmem_alloc(len, KM_NOSLEEP);
   5455 		}
   5456 
   5457 		if (NULL == res_p->tx_iq_perd_res) {
   5458 			cmn_err(CE_WARN, "iwh_save_calib_result(): "
   5459 			    "failed to allocate memory.\n");
   5460 			return;
   5461 		}
   5462 
   5463 		res_p->tx_iq_perd_res_len = len;
   5464 		bcopy(calib_hdr, res_p->tx_iq_perd_res, len);
   5465 		break;
   5466 
   5467 	case PHY_CALIBRATE_DC_CMD:
   5468 		if (NULL == res_p->dc_res) {
   5469 			res_p->dc_res = kmem_alloc(len, KM_NOSLEEP);
   5470 		}
   5471 
   5472 		if (NULL == res_p->dc_res) {
   5473 			cmn_err(CE_WARN, "iwh_save_calib_result(): "
   5474 			    "failed to allocate memory.\n");
   5475 			return;
   5476 		}
   5477 
   5478 		res_p->dc_res_len = len;
   5479 		bcopy(calib_hdr, res_p->dc_res, len);
   5480 		break;
   5481 
   5482 	case PHY_CALIBRATE_BASE_BAND_CMD:
   5483 		if (NULL == res_p->base_band_res) {
   5484 			res_p->base_band_res = kmem_alloc(len, KM_NOSLEEP);
   5485 		}
   5486 
   5487 		if (NULL == res_p->base_band_res) {
   5488 			cmn_err(CE_WARN, "iwh_save_calib_result(): "
   5489 			    "failed to allocate memory.\n");
   5490 			return;
   5491 		}
   5492 
   5493 		res_p->base_band_res_len = len;
   5494 		bcopy(calib_hdr, res_p->base_band_res, len);
   5495 		break;
   5496 
   5497 	default:
   5498 		cmn_err(CE_WARN, "iwh_save_calib_result(): "
   5499 		    "incorrect calibration type(%d).\n", calib_hdr->op_code);
   5500 		break;
   5501 	}
   5502 
   5503 }
   5504 
   5505 /*
   5506  * configure TX pwoer table
   5507  */
   5508 static int
   5509 iwh_tx_power_table(iwh_sc_t *sc, int async)
   5510 {
   5511 	iwh_tx_power_table_cmd_t txpower;
   5512 	int i, err = IWH_FAIL;
   5513 
   5514 	(void) memset(&txpower, 0, sizeof (txpower));
   5515 
   5516 	txpower.band = 1; /* for 2.4G */
   5517 	txpower.channel = (uint8_t)LE_16(sc->sc_config.chan);
   5518 	txpower.pa_measurements = 1;
   5519 	txpower.max_mcs = 23;
   5520 
   5521 	for (i = 0; i < 24; i++) {
   5522 		txpower.db.ht_ofdm_power[i].s.radio_tx_gain[0] = 0x16;
   5523 		txpower.db.ht_ofdm_power[i].s.radio_tx_gain[1] = 0x16;
   5524 		txpower.db.ht_ofdm_power[i].s.radio_tx_gain[2] = 0x16;
   5525 		txpower.db.ht_ofdm_power[i].s.dsp_predis_atten[0] = 0x6E;
   5526 		txpower.db.ht_ofdm_power[i].s.dsp_predis_atten[1] = 0x6E;
   5527 		txpower.db.ht_ofdm_power[i].s.dsp_predis_atten[2] = 0x6E;
   5528 	}
   5529 
   5530 	for (i = 0; i < 2; i++) {
   5531 		txpower.db.cck_power[i].s.radio_tx_gain[0] = 0x16;
   5532 		txpower.db.cck_power[i].s.radio_tx_gain[1] = 0x16;
   5533 		txpower.db.cck_power[i].s.radio_tx_gain[2] = 0x16;
   5534 		txpower.db.cck_power[i].s.dsp_predis_atten[0] = 0x6E;
   5535 		txpower.db.cck_power[i].s.dsp_predis_atten[1] = 0x6E;
   5536 		txpower.db.cck_power[i].s.dsp_predis_atten[2] = 0x6E;
   5537 	}
   5538 
   5539 	err = iwh_cmd(sc, REPLY_TX_PWR_TABLE_CMD, &txpower,
   5540 	    sizeof (txpower), async);
   5541 	if (err != IWH_SUCCESS) {
   5542 		cmn_err(CE_WARN, "iwh_tx_power_table(): "
   5543 		    "failed to set tx power table.\n");
   5544 		return (err);
   5545 	}
   5546 
   5547 	return (err);
   5548 }
   5549 
   5550 static void
   5551 iwh_release_calib_buffer(iwh_sc_t *sc)
   5552 {
   5553 	if (sc->sc_calib_results.lo_res != NULL) {
   5554 		kmem_free(sc->sc_calib_results.lo_res,
   5555 		    sc->sc_calib_results.lo_res_len);
   5556 		sc->sc_calib_results.lo_res = NULL;
   5557 	}
   5558 
   5559 	if (sc->sc_calib_results.tx_iq_res != NULL) {
   5560 		kmem_free(sc->sc_calib_results.tx_iq_res,
   5561 		    sc->sc_calib_results.tx_iq_res_len);
   5562 		sc->sc_calib_results.tx_iq_res = NULL;
   5563 	}
   5564 
   5565 	if (sc->sc_calib_results.tx_iq_perd_res != NULL) {
   5566 		kmem_free(sc->sc_calib_results.tx_iq_perd_res,
   5567 		    sc->sc_calib_results.tx_iq_perd_res_len);
   5568 		sc->sc_calib_results.tx_iq_perd_res = NULL;
   5569 	}
   5570 
   5571 	if (sc->sc_calib_results.dc_res != NULL) {
   5572 		kmem_free(sc->sc_calib_results.dc_res,
   5573 		    sc->sc_calib_results.dc_res_len);
   5574 		sc->sc_calib_results.dc_res = NULL;
   5575 	}
   5576 
   5577 	if (sc->sc_calib_results.base_band_res != NULL) {
   5578 		kmem_free(sc->sc_calib_results.base_band_res,
   5579 		    sc->sc_calib_results.base_band_res_len);
   5580 		sc->sc_calib_results.base_band_res = NULL;
   5581 	}
   5582 }
   5583 
   5584 /*
   5585  * common section of intialization
   5586  */
   5587 static int
   5588 iwh_init_common(iwh_sc_t *sc)
   5589 {
   5590 	int32_t	qid;
   5591 	uint32_t tmp;
   5592 
   5593 	if (iwh_reset_hw(sc) != IWH_SUCCESS) {
   5594 		cmn_err(CE_WARN, "iwh_init_common(): "
   5595 		    "failed to reset hardware\n");
   5596 		return (IWH_FAIL);
   5597 	}
   5598 
   5599 	(void) iwh_preinit(sc);
   5600 
   5601 	tmp = IWH_READ(sc, CSR_GP_CNTRL);
   5602 	if (!(tmp & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) {
   5603 		cmn_err(CE_NOTE, "iwh_init_common(): "
   5604 		    "radio transmitter is off\n");
   5605 		return (IWH_FAIL);
   5606 	}
   5607 
   5608 	/*
   5609 	 * init Rx ring
   5610 	 */
   5611 	iwh_mac_access_enter(sc);
   5612 	IWH_WRITE(sc, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
   5613 
   5614 	IWH_WRITE(sc, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
   5615 	IWH_WRITE(sc, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
   5616 	    sc->sc_rxq.dma_desc.cookie.dmac_address >> 8);
   5617 
   5618 	IWH_WRITE(sc, FH_RSCSR_CHNL0_STTS_WPTR_REG,
   5619 	    ((uint32_t)(sc->sc_dma_sh.cookie.dmac_address +
   5620 	    offsetof(struct iwh_shared, val0)) >> 4));
   5621 
   5622 	IWH_WRITE(sc, FH_MEM_RCSR_CHNL0_CONFIG_REG,
   5623 	    FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
   5624 	    FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
   5625 	    IWH_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K |
   5626 	    (RX_QUEUE_SIZE_LOG <<
   5627 	    FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT));
   5628 	iwh_mac_access_exit(sc);
   5629 	IWH_WRITE(sc, FH_RSCSR_CHNL0_RBDCB_WPTR_REG,
   5630 	    (RX_QUEUE_SIZE - 1) & ~0x7);
   5631 
   5632 	/*
   5633 	 * init Tx rings
   5634 	 */
   5635 	iwh_mac_access_enter(sc);
   5636 	iwh_reg_write(sc, IWH_SCD_TXFACT, 0);
   5637 
   5638 	/*
   5639 	 * keep warm page
   5640 	 */
   5641 	IWH_WRITE(sc, IWH_FH_KW_MEM_ADDR_REG,
   5642 	    sc->sc_dma_kw.cookie.dmac_address >> 4);
   5643 
   5644 	for (qid = 0; qid < IWH_NUM_QUEUES; qid++) {
   5645 		IWH_WRITE(sc, FH_MEM_CBBC_QUEUE(qid),
   5646 		    sc->sc_txq[qid].dma_desc.cookie.dmac_address >> 8);
   5647 		IWH_WRITE(sc, IWH_FH_TCSR_CHNL_TX_CONFIG_REG(qid),
   5648 		    IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
   5649 		    IWH_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL);
   5650 	}
   5651 
   5652 	iwh_mac_access_exit(sc);
   5653 
   5654 	/*
   5655 	 * clear "radio off" and "disable command" bits
   5656 	 */
   5657 	IWH_WRITE(sc, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
   5658 	IWH_WRITE(sc, CSR_UCODE_DRV_GP1_CLR,
   5659 	    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
   5660 
   5661 	/*
   5662 	 * clear any pending interrupts
   5663 	 */
   5664 	IWH_WRITE(sc, CSR_INT, 0xffffffff);
   5665 
   5666 	/*
   5667 	 * enable interrupts
   5668 	 */
   5669 	IWH_WRITE(sc, CSR_INT_MASK, CSR_INI_SET_MASK);
   5670 
   5671 	IWH_WRITE(sc, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
   5672 	IWH_WRITE(sc, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
   5673 
   5674 	return (IWH_SUCCESS);
   5675 }
   5676 
   5677 static int
   5678 iwh_fast_recover(iwh_sc_t *sc)
   5679 {
   5680 	ieee80211com_t *ic = &sc->sc_ic;
   5681 	int err = IWH_FAIL;
   5682 
   5683 	mutex_enter(&sc->sc_glock);
   5684 
   5685 	/*
   5686 	 * restore runtime configuration
   5687 	 */
   5688 	bcopy(&sc->sc_config_save, &sc->sc_config,
   5689 	    sizeof (sc->sc_config));
   5690 
   5691 	sc->sc_config.assoc_id = 0;
   5692 	sc->sc_config.filter_flags &= ~LE_32(RXON_FILTER_ASSOC_MSK);
   5693 
   5694 	if ((err = iwh_hw_set_before_auth(sc)) != IWH_SUCCESS) {
   5695 		cmn_err(CE_WARN, "iwh_fast_recover(): "
   5696 		    "could not setup authentication\n");
   5697 		mutex_exit(&sc->sc_glock);
   5698 		return (err);
   5699 	}
   5700 
   5701 	bcopy(&sc->sc_config_save, &sc->sc_config,
   5702 	    sizeof (sc->sc_config));
   5703 
   5704 	/*
   5705 	 * update adapter's configuration
   5706 	 */
   5707 	err = iwh_run_state_config(sc);
   5708 	if (err != IWH_SUCCESS) {
   5709 		cmn_err(CE_WARN, "iwh_fast_recover(): "
   5710 		    "failed to setup association\n");
   5711 		mutex_exit(&sc->sc_glock);
   5712 		return (err);
   5713 	}
   5714 
   5715 	/*
   5716 	 * set LED on
   5717 	 */
   5718 	iwh_set_led(sc, 2, 0, 1);
   5719 
   5720 	mutex_exit(&sc->sc_glock);
   5721 
   5722 	atomic_and_32(&sc->sc_flags, ~IWH_F_HW_ERR_RECOVER);
   5723 
   5724 	/*
   5725 	 * start queue
   5726 	 */
   5727 	IWH_DBG((IWH_DEBUG_FW, "iwh_fast_recover(): "
   5728 	    "resume xmit\n"));
   5729 	mac_tx_update(ic->ic_mach);
   5730 
   5731 	return (IWH_SUCCESS);
   5732 }
   5733 
   5734 static int
   5735 iwh_run_state_config(iwh_sc_t *sc)
   5736 {
   5737 	struct ieee80211com *ic = &sc->sc_ic;
   5738 	ieee80211_node_t *in = ic->ic_bss;
   5739 	uint32_t ht_protec = (uint32_t)(-1);
   5740 	int err = IWH_FAIL;
   5741 
   5742 	/*
   5743 	 * update adapter's configuration
   5744 	 */
   5745 	sc->sc_config.assoc_id = in->in_associd & 0x3fff;
   5746 
   5747 	/*
   5748 	 * short preamble/slot time are
   5749 	 * negotiated when associating
   5750 	 */
   5751 	sc->sc_config.flags &=
   5752 	    ~LE_32(RXON_FLG_SHORT_PREAMBLE_MSK |
   5753 	    RXON_FLG_SHORT_SLOT_MSK);
   5754 
   5755 	if (ic->ic_flags & IEEE80211_F_SHSLOT) {
   5756 		sc->sc_config.flags |=
   5757 		    LE_32(RXON_FLG_SHORT_SLOT_MSK);
   5758 	}
   5759 
   5760 	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) {
   5761 		sc->sc_config.flags |=
   5762 		    LE_32(RXON_FLG_SHORT_PREAMBLE_MSK);
   5763 	}
   5764 
   5765 	if (in->in_flags & IEEE80211_NODE_HT) {
   5766 		ht_protec = in->in_htopmode;
   5767 		if (ht_protec > 3) {
   5768 			cmn_err(CE_WARN, "iwh_run_state_config(): "
   5769 			    "HT protection mode is not correct.\n");
   5770 			return (IWH_FAIL);
   5771 		} else if (NO_HT_PROT == ht_protec) {
   5772 			ht_protec = sc->sc_ht_conf.ht_protection;
   5773 		}
   5774 
   5775 		sc->sc_config.flags |=
   5776 		    LE_32(ht_protec << RXON_FLG_HT_OPERATING_MODE_POS);
   5777 	}
   5778 
   5779 	/*
   5780 	 * set RX chains/antennas.
   5781 	 */
   5782 	iwh_config_rxon_chain(sc);
   5783 
   5784 	sc->sc_config.filter_flags |=
   5785 	    LE_32(RXON_FILTER_ASSOC_MSK);
   5786 
   5787 	if (ic->ic_opmode != IEEE80211_M_STA) {
   5788 		sc->sc_config.filter_flags |=
   5789 		    LE_32(RXON_FILTER_BCON_AWARE_MSK);
   5790 	}
   5791 
   5792 	IWH_DBG((IWH_DEBUG_80211, "iwh_run_state_config(): "
   5793 	    "config chan %d flags %x"
   5794 	    " filter_flags %x\n",
   5795 	    sc->sc_config.chan, sc->sc_config.flags,
   5796 	    sc->sc_config.filter_flags));
   5797 
   5798 	err = iwh_cmd(sc, REPLY_RXON, &sc->sc_config,
   5799 	    sizeof (iwh_rxon_cmd_t), 1);
   5800 	if (err != IWH_SUCCESS) {
   5801 		cmn_err(CE_WARN, "iwh_run_state_config(): "
   5802 		    "could not update configuration\n");
   5803 		return (err);
   5804 	}
   5805 
   5806 	if ((sc->sc_dev_id != 0x423c) &&
   5807 	    (sc->sc_dev_id != 0x423d)) {
   5808 		/*
   5809 		 * send tx power table command
   5810 		 */
   5811 		err = iwh_tx_power_table(sc, 1);
   5812 		if (err != IWH_SUCCESS) {
   5813 			return (err);
   5814 		}
   5815 	}
   5816 
   5817 	/*
   5818 	 * Not need to update retry rate table for AP node
   5819 	 */
   5820 	err = iwh_qosparam_to_hw(sc, 1);
   5821 	if (err != IWH_SUCCESS) {
   5822 		return (err);
   5823 	}
   5824 
   5825 	return (err);
   5826 }
   5827 
   5828 /*
   5829  * This function is only for compatibility with Net80211 module.
   5830  * iwh_qosparam_to_hw() is the actual function updating EDCA
   5831  * parameters to hardware.
   5832  */
   5833 /* ARGSUSED */
   5834 static int
   5835 iwh_wme_update(ieee80211com_t *ic)
   5836 {
   5837 	return (0);
   5838 }
   5839 
   5840 static int
   5841 iwh_wme_to_qos_ac(int wme_ac)
   5842 {
   5843 	int qos_ac = QOS_AC_INVALID;
   5844 
   5845 	if (wme_ac < WME_AC_BE || wme_ac > WME_AC_VO) {
   5846 		cmn_err(CE_WARN, "iwh_wme_to_qos_ac(): "
   5847 		    "WME AC index is not in suitable range.\n");
   5848 		return (qos_ac);
   5849 	}
   5850 
   5851 	switch (wme_ac) {
   5852 	case WME_AC_BE:
   5853 		qos_ac = QOS_AC_BK;
   5854 		break;
   5855 	case WME_AC_BK:
   5856 		qos_ac = QOS_AC_BE;
   5857 		break;
   5858 	case WME_AC_VI:
   5859 		qos_ac = QOS_AC_VI;
   5860 		break;
   5861 	case WME_AC_VO:
   5862 		qos_ac = QOS_AC_VO;
   5863 		break;
   5864 	}
   5865 
   5866 	return (qos_ac);
   5867 }
   5868 
   5869 static uint16_t
   5870 iwh_cw_e_to_cw(uint8_t cw_e)
   5871 {
   5872 	uint16_t cw = 1;
   5873 
   5874 	while (cw_e > 0) {
   5875 		cw <<= 1;
   5876 		cw_e--;
   5877 	}
   5878 
   5879 	cw -= 1;
   5880 	return (cw);
   5881 }
   5882 
   5883 static int
   5884 iwh_wmeparam_check(struct wmeParams *wmeparam)
   5885 {
   5886 	int i;
   5887 
   5888 	for (i = 0; i < WME_NUM_AC; i++) {
   5889 
   5890 		if ((wmeparam[i].wmep_logcwmax > QOS_CW_RANGE_MAX) ||
   5891 		    (wmeparam[i].wmep_logcwmin >= wmeparam[i].wmep_logcwmax)) {
   5892 			cmn_err(CE_WARN, "iwh_wmeparam_check(): "
   5893 			    "Contention window is not in suitable range.\n");
   5894 			return (IWH_FAIL);
   5895 		}
   5896 
   5897 		if ((wmeparam[i].wmep_aifsn < QOS_AIFSN_MIN) ||
   5898 		    (wmeparam[i].wmep_aifsn > QOS_AIFSN_MAX)) {
   5899 			cmn_err(CE_WARN, "iwh_wmeparam_check(): "
   5900 			    "Arbitration interframe space number"
   5901 			    "is not in suitable range.\n");
   5902 			return (IWH_FAIL);
   5903 		}
   5904 	}
   5905 
   5906 	return (IWH_SUCCESS);
   5907 }
   5908 
   5909 /*
   5910  * This function updates EDCA parameters into hardware.
   5911  * FIFO0-background, FIFO1-best effort, FIFO2-viedo, FIFO3-voice.
   5912  */
   5913 static int
   5914 iwh_qosparam_to_hw(iwh_sc_t *sc, int async)
   5915 {
   5916 	ieee80211com_t *ic = &sc->sc_ic;
   5917 	ieee80211_node_t *in = ic->ic_bss;
   5918 	struct wmeParams *wmeparam;
   5919 	iwh_qos_param_cmd_t qosparam_cmd;
   5920 	int i, j;
   5921 	int err = IWH_FAIL;
   5922 
   5923 	if ((in->in_flags & IEEE80211_NODE_QOS) &&
   5924 	    (IEEE80211_M_STA == ic->ic_opmode)) {
   5925 		wmeparam = ic->ic_wme.wme_chanParams.cap_wmeParams;
   5926 	} else {
   5927 		return (IWH_SUCCESS);
   5928 	}
   5929 
   5930 	(void) memset(&qosparam_cmd, 0, sizeof (qosparam_cmd));
   5931 
   5932 	err = iwh_wmeparam_check(wmeparam);
   5933 	if (err != IWH_SUCCESS) {
   5934 		return (err);
   5935 	}
   5936 
   5937 	if (in->in_flags & IEEE80211_NODE_QOS) {
   5938 		qosparam_cmd.flags |= QOS_PARAM_FLG_UPDATE_EDCA;
   5939 	}
   5940 
   5941 	if (in->in_flags & (IEEE80211_NODE_QOS | IEEE80211_NODE_HT)) {
   5942 		qosparam_cmd.flags |= QOS_PARAM_FLG_TGN;
   5943 	}
   5944 
   5945 	for (i = 0; i < WME_NUM_AC; i++) {
   5946 
   5947 		j = iwh_wme_to_qos_ac(i);
   5948 		if (j < QOS_AC_BK || j > QOS_AC_VO) {
   5949 			return (IWH_FAIL);
   5950 		}
   5951 
   5952 		qosparam_cmd.ac[j].cw_min =
   5953 		    iwh_cw_e_to_cw(wmeparam[i].wmep_logcwmin);
   5954 		qosparam_cmd.ac[j].cw_max =
   5955 		    iwh_cw_e_to_cw(wmeparam[i].wmep_logcwmax);
   5956 		qosparam_cmd.ac[j].aifsn =
   5957 		    wmeparam[i].wmep_aifsn;
   5958 		qosparam_cmd.ac[j].txop =
   5959 		    (uint16_t)(wmeparam[i].wmep_txopLimit * 32);
   5960 	}
   5961 
   5962 	err = iwh_cmd(sc, REPLY_QOS_PARAM, &qosparam_cmd,
   5963 	    sizeof (qosparam_cmd), async);
   5964 	if (err != IWH_SUCCESS) {
   5965 		cmn_err(CE_WARN, "iwh_qosparam_to_hw(): "
   5966 		    "failed to update QoS parameters into hardware.\n");
   5967 		return (err);
   5968 	}
   5969 
   5970 #ifdef	DEBUG
   5971 	IWH_DBG((IWH_DEBUG_QOS, "iwh_qosparam_to_hw(): "
   5972 	    "EDCA parameters are as follows:\n"));
   5973 
   5974 	IWH_DBG((IWH_DEBUG_QOS, "BK parameters are: "
   5975 	    "cw_min = %d, cw_max = %d, aifsn = %d, txop = %d\n",
   5976 	    qosparam_cmd.ac[0].cw_min, qosparam_cmd.ac[0].cw_max,
   5977 	    qosparam_cmd.ac[0].aifsn, qosparam_cmd.ac[0].txop));
   5978 
   5979 	IWH_DBG((IWH_DEBUG_QOS, "BE parameters are: "
   5980 	    "cw_min = %d, cw_max = %d, aifsn = %d, txop = %d\n",
   5981 	    qosparam_cmd.ac[1].cw_min, qosparam_cmd.ac[1].cw_max,
   5982 	    qosparam_cmd.ac[1].aifsn, qosparam_cmd.ac[1].txop));
   5983 
   5984 	IWH_DBG((IWH_DEBUG_QOS, "VI parameters are: "
   5985 	    "cw_min = %d, cw_max = %d, aifsn = %d, txop = %d\n",
   5986 	    qosparam_cmd.ac[2].cw_min, qosparam_cmd.ac[2].cw_max,
   5987 	    qosparam_cmd.ac[2].aifsn, qosparam_cmd.ac[2].txop));
   5988 
   5989 	IWH_DBG((IWH_DEBUG_QOS, "VO parameters are: "
   5990 	    "cw_min = %d, cw_max = %d, aifsn = %d, txop = %d\n",
   5991 	    qosparam_cmd.ac[3].cw_min, qosparam_cmd.ac[3].cw_max,
   5992 	    qosparam_cmd.ac[3].aifsn, qosparam_cmd.ac[3].txop));
   5993 #endif
   5994 	return (err);
   5995 }
   5996 
   5997 static inline int
   5998 iwh_wme_tid_qos_ac(int tid)
   5999 {
   6000 	switch (tid) {
   6001 	case 1:
   6002 	case 2:
   6003 		return (QOS_AC_BK);
   6004 	case 0:
   6005 	case 3:
   6006 		return (QOS_AC_BE);
   6007 	case 4:
   6008 	case 5:
   6009 		return (QOS_AC_VI);
   6010 	case 6:
   6011 	case 7:
   6012 		return (QOS_AC_VO);
   6013 	}
   6014 
   6015 	return (QOS_AC_BE);
   6016 }
   6017 
   6018 static inline int
   6019 iwh_qos_ac_to_txq(int qos_ac)
   6020 {
   6021 	switch (qos_ac) {
   6022 	case QOS_AC_BK:
   6023 		return (QOS_AC_BK_TO_TXQ);
   6024 	case QOS_AC_BE:
   6025 		return (QOS_AC_BE_TO_TXQ);
   6026 	case QOS_AC_VI:
   6027 		return (QOS_AC_VI_TO_TXQ);
   6028 	case QOS_AC_VO:
   6029 		return (QOS_AC_VO_TO_TXQ);
   6030 	}
   6031 
   6032 	return (QOS_AC_BE_TO_TXQ);
   6033 }
   6034 
   6035 static int
   6036 iwh_wme_tid_to_txq(int tid)
   6037 {
   6038 	int queue_n = TXQ_FOR_AC_INVALID;
   6039 	int qos_ac;
   6040 
   6041 	if (tid < WME_TID_MIN ||
   6042 	    tid > WME_TID_MAX) {
   6043 		cmn_err(CE_WARN, "wme_tid_to_txq(): "
   6044 		    "TID is not in suitable range.\n");
   6045 		return (queue_n);
   6046 	}
   6047 
   6048 	qos_ac = iwh_wme_tid_qos_ac(tid);
   6049 	queue_n = iwh_qos_ac_to_txq(qos_ac);
   6050 
   6051 	return (queue_n);
   6052 }
   6053 
   6054 /*
   6055  * This function is used for intializing HT relevant configurations.
   6056  */
   6057 static void
   6058 iwh_init_ht_conf(iwh_sc_t *sc)
   6059 {
   6060 	(void) memset(&sc->sc_ht_conf, 0, sizeof (iwh_ht_conf_t));
   6061 
   6062 	if ((0x4235 == sc->sc_dev_id) ||
   6063 	    (0x4236 == sc->sc_dev_id) ||
   6064 	    (0x423a == sc->sc_dev_id)) {
   6065 		sc->sc_ht_conf.ht_support = 1;
   6066 
   6067 		sc->sc_ht_conf.valid_chains = 3;
   6068 		sc->sc_ht_conf.tx_stream_count = 2;
   6069 		sc->sc_ht_conf.rx_stream_count = 2;
   6070 
   6071 		sc->sc_ht_conf.tx_support_mcs[0] = 0xff;
   6072 		sc->sc_ht_conf.tx_support_mcs[1] = 0xff;
   6073 		sc->sc_ht_conf.rx_support_mcs[0] = 0xff;
   6074 		sc->sc_ht_conf.rx_support_mcs[1] = 0xff;
   6075 	} else {
   6076 		sc->sc_ht_conf.ht_support = 1;
   6077 
   6078 		sc->sc_ht_conf.valid_chains = 2;
   6079 		sc->sc_ht_conf.tx_stream_count = 1;
   6080 		sc->sc_ht_conf.rx_stream_count = 2;
   6081 
   6082 		sc->sc_ht_conf.tx_support_mcs[0] = 0xff;
   6083 		sc->sc_ht_conf.rx_support_mcs[0] = 0xff;
   6084 		sc->sc_ht_conf.rx_support_mcs[1] = 0xff;
   6085 	}
   6086 
   6087 	if (sc->sc_ht_conf.ht_support) {
   6088 		sc->sc_ht_conf.cap |= HT_CAP_GRN_FLD;
   6089 		sc->sc_ht_conf.cap |= HT_CAP_SGI_20;
   6090 		sc->sc_ht_conf.cap |= HT_CAP_MAX_AMSDU;
   6091 		/* should disable MIMO */
   6092 		sc->sc_ht_conf.cap |= HT_CAP_MIMO_PS;
   6093 
   6094 		sc->sc_ht_conf.ampdu_p.factor = HT_RX_AMPDU_FACTOR;
   6095 		sc->sc_ht_conf.ampdu_p.density = HT_MPDU_DENSITY;
   6096 
   6097 		sc->sc_ht_conf.ht_protection = HT_PROT_CHAN_NON_HT;
   6098 	}
   6099 }
   6100 
   6101 /*
   6102  * This function overwrites default ieee80211_rateset_11n struc.
   6103  */
   6104 static void
   6105 iwh_overwrite_11n_rateset(iwh_sc_t *sc)
   6106 {
   6107 	uint8_t *ht_rs = sc->sc_ht_conf.rx_support_mcs;
   6108 	int mcs_idx, mcs_count = 0;
   6109 	int i, j;
   6110 
   6111 	for (i = 0; i < HT_RATESET_NUM; i++) {
   6112 		for (j = 0; j < 8; j++) {
   6113 			if (ht_rs[i] & (1 << j)) {
   6114 				mcs_idx = i * 8 + j;
   6115 				if (mcs_idx >= IEEE80211_HTRATE_MAXSIZE) {
   6116 					break;
   6117 				}
   6118 
   6119 				ieee80211_rateset_11n.rs_rates[mcs_idx] =
   6120 				    (uint8_t)mcs_idx;
   6121 				mcs_count++;
   6122 			}
   6123 		}
   6124 	}
   6125 
   6126 	ieee80211_rateset_11n.rs_nrates = (uint8_t)mcs_count;
   6127 
   6128 #ifdef	DEBUG
   6129 	IWH_DBG((IWH_DEBUG_HTRATE, "iwh_overwrite_11n_rateset(): "
   6130 	    "HT rates supported by this station is as follows:\n"));
   6131 
   6132 	for (i = 0; i < ieee80211_rateset_11n.rs_nrates; i++) {
   6133 		IWH_DBG((IWH_DEBUG_HTRATE, "Rate %d is %d\n",
   6134 		    i, ieee80211_rateset_11n.rs_rates[i]));
   6135 	}
   6136 #endif
   6137 }
   6138 
   6139 /*
   6140  * This function overwrites default configurations of
   6141  * ieee80211com structure in Net80211 module.
   6142  */
   6143 static void
   6144 iwh_overwrite_ic_default(iwh_sc_t *sc)
   6145 {
   6146 	ieee80211com_t *ic = &sc->sc_ic;
   6147 
   6148 	sc->sc_newstate = ic->ic_newstate;
   6149 	ic->ic_newstate = iwh_newstate;
   6150 	ic->ic_node_alloc = iwh_node_alloc;
   6151 	ic->ic_node_free = iwh_node_free;
   6152 
   6153 	if (sc->sc_ht_conf.ht_support) {
   6154 		sc->sc_recv_action = ic->ic_recv_action;
   6155 		ic->ic_recv_action = iwh_recv_action;
   6156 		sc->sc_send_action = ic->ic_send_action;
   6157 		ic->ic_send_action = iwh_send_action;
   6158 
   6159 		ic->ic_ampdu_rxmax = sc->sc_ht_conf.ampdu_p.factor;
   6160 		ic->ic_ampdu_density = sc->sc_ht_conf.ampdu_p.density;
   6161 		ic->ic_ampdu_limit = ic->ic_ampdu_rxmax;
   6162 	}
   6163 }
   6164 
   6165 /*
   6166  * This function sets "RX chain selection" feild
   6167  * in RXON command during plumb driver.
   6168  */
   6169 static void
   6170 iwh_config_rxon_chain(iwh_sc_t *sc)
   6171 {
   6172 	ieee80211com_t *ic = &sc->sc_ic;
   6173 	ieee80211_node_t *in = ic->ic_bss;
   6174 
   6175 	if (3 == sc->sc_ht_conf.valid_chains) {
   6176 		sc->sc_config.rx_chain = LE_16((RXON_RX_CHAIN_A_MSK |
   6177 		    RXON_RX_CHAIN_B_MSK | RXON_RX_CHAIN_C_MSK) <<
   6178 		    RXON_RX_CHAIN_VALID_POS);
   6179 
   6180 		sc->sc_config.rx_chain |= LE_16((RXON_RX_CHAIN_A_MSK |
   6181 		    RXON_RX_CHAIN_B_MSK | RXON_RX_CHAIN_C_MSK) <<
   6182 		    RXON_RX_CHAIN_FORCE_SEL_POS);
   6183 
   6184 		sc->sc_config.rx_chain |= LE_16((RXON_RX_CHAIN_A_MSK |
   6185 		    RXON_RX_CHAIN_B_MSK | RXON_RX_CHAIN_C_MSK) <<
   6186 		    RXON_RX_CHAIN_FORCE_MIMO_SEL_POS);
   6187 	} else {
   6188 		sc->sc_config.rx_chain = LE_16((RXON_RX_CHAIN_A_MSK |
   6189 		    RXON_RX_CHAIN_B_MSK) << RXON_RX_CHAIN_VALID_POS);
   6190 
   6191 		sc->sc_config.rx_chain |= LE_16((RXON_RX_CHAIN_A_MSK |
   6192 		    RXON_RX_CHAIN_B_MSK) << RXON_RX_CHAIN_FORCE_SEL_POS);
   6193 
   6194 		sc->sc_config.rx_chain |= LE_16((RXON_RX_CHAIN_A_MSK |
   6195 		    RXON_RX_CHAIN_B_MSK) <<
   6196 		    RXON_RX_CHAIN_FORCE_MIMO_SEL_POS);
   6197 	}
   6198 
   6199 	sc->sc_config.rx_chain |= LE_16(RXON_RX_CHAIN_DRIVER_FORCE_MSK);
   6200 
   6201 	if ((in != NULL) &&
   6202 	    (in->in_flags & IEEE80211_NODE_HT) &&
   6203 	    sc->sc_ht_conf.ht_support) {
   6204 		if (3 == sc->sc_ht_conf.valid_chains) {
   6205 			sc->sc_config.rx_chain |= LE_16(3 <<
   6206 			    RXON_RX_CHAIN_CNT_POS);
   6207 			sc->sc_config.rx_chain |= LE_16(3 <<
   6208 			    RXON_RX_CHAIN_MIMO_CNT_POS);
   6209 		} else {
   6210 			sc->sc_config.rx_chain |= LE_16(2 <<
   6211 			    RXON_RX_CHAIN_CNT_POS);
   6212 			sc->sc_config.rx_chain |= LE_16(2 <<
   6213 			    RXON_RX_CHAIN_MIMO_CNT_POS);
   6214 		}
   6215 
   6216 		sc->sc_config.rx_chain |= LE_16(1 <<
   6217 		    RXON_RX_CHAIN_MIMO_FORCE_POS);
   6218 	}
   6219 
   6220 	IWH_DBG((IWH_DEBUG_RXON, "iwh_config_rxon_chain(): "
   6221 	    "rxon->rx_chain = %x\n", sc->sc_config.rx_chain));
   6222 }
   6223 
   6224 /*
   6225  * This function adds AP station into hardware.
   6226  */
   6227 static int
   6228 iwh_add_ap_sta(iwh_sc_t *sc)
   6229 {
   6230 	ieee80211com_t *ic = &sc->sc_ic;
   6231 	ieee80211_node_t *in = ic->ic_bss;
   6232 	iwh_add_sta_t node;
   6233 	uint32_t ampdu_factor, ampdu_density;
   6234 	int err = IWH_FAIL;
   6235 
   6236 	/*
   6237 	 * Add AP node into hardware.
   6238 	 */
   6239 	(void) memset(&node, 0, sizeof (node));
   6240 	IEEE80211_ADDR_COPY(node.sta.addr, in->in_bssid);
   6241 	node.mode = STA_MODE_ADD_MSK;
   6242 	node.sta.sta_id = IWH_AP_ID;
   6243 
   6244 	if (sc->sc_ht_conf.ht_support &&
   6245 	    (in->in_htcap_ie != NULL) &&
   6246 	    (in->in_htcap != 0) &&
   6247 	    (in->in_htparam != 0)) {
   6248 
   6249 		if (((in->in_htcap & HT_CAP_MIMO_PS) >> 2)
   6250 		    == HT_CAP_MIMO_PS_DYNAMIC) {
   6251 			node.station_flags |= LE_32(STA_FLG_RTS_MIMO_PROT);
   6252 		}
   6253 
   6254 		ampdu_factor = in->in_htparam & HT_RX_AMPDU_FACTOR_MSK;
   6255 		node.station_flags |=
   6256 		    LE_32(ampdu_factor << STA_FLG_MAX_AMPDU_POS);
   6257 
   6258 		ampdu_density = (in->in_htparam & HT_MPDU_DENSITY_MSK) >>
   6259 		    HT_MPDU_DENSITY_POS;
   6260 		node.station_flags |=
   6261 		    LE_32(ampdu_density << STA_FLG_AMPDU_DENSITY_POS);
   6262 
   6263 		if (in->in_htcap & LE_16(HT_CAP_SUP_WIDTH)) {
   6264 			node.station_flags |=
   6265 			    LE_32(STA_FLG_FAT_EN);
   6266 		}
   6267 	}
   6268 
   6269 	err = iwh_cmd(sc, REPLY_ADD_STA, &node, sizeof (node), 1);
   6270 	if (err != IWH_SUCCESS) {
   6271 		cmn_err(CE_WARN, "iwh_add_ap_lq(): "
   6272 		    "failed to add AP node\n");
   6273 		return (err);
   6274 	}
   6275 
   6276 	return (err);
   6277 }
   6278 
   6279 /*
   6280  * Each station in the Shirley Peak's internal station table has
   6281  * its own table of 16 TX rates and modulation modes for retrying
   6282  * TX when an ACK is not received. This function replaces the entire
   6283  * table for one station.Station must already be in Shirley Peak's
   6284  * station talbe.
   6285  */
   6286 static int
   6287 iwh_ap_lq(iwh_sc_t *sc)
   6288 {
   6289 	ieee80211com_t *ic = &sc->sc_ic;
   6290 	ieee80211_node_t *in = ic->ic_bss;
   6291 	iwh_link_quality_cmd_t link_quality;
   6292 	const struct ieee80211_rateset *rs_sup = NULL;
   6293 	uint32_t masks = 0, rate;
   6294 	int i, err = IWH_FAIL;
   6295 
   6296 	/*
   6297 	 * TX_LINK_QUALITY cmd
   6298 	 */
   6299 	(void) memset(&link_quality, 0, sizeof (link_quality));
   6300 	if (in->in_chan == IEEE80211_CHAN_ANYC)	/* skip null node */
   6301 		return (err);
   6302 	rs_sup = ieee80211_get_suprates(ic, in->in_chan);
   6303 
   6304 	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
   6305 		if (i < rs_sup->ir_nrates) {
   6306 			rate = rs_sup->ir_rates[rs_sup->ir_nrates - i] &
   6307 			    IEEE80211_RATE_VAL;
   6308 		} else {
   6309 			rate = 2;
   6310 		}
   6311 
   6312 		if (2 == rate || 4 == rate ||
   6313 		    11 == rate || 22 == rate) {
   6314 			masks |= LE_32(RATE_MCS_CCK_MSK);
   6315 		}
   6316 
   6317 		masks |= LE_32(RATE_MCS_ANT_B_MSK);
   6318 
   6319 		link_quality.rate_n_flags[i] =
   6320 		    LE_32(iwh_rate_to_plcp(rate) | masks);
   6321 	}
   6322 
   6323 	link_quality.general_params.single_stream_ant_msk = LINK_QUAL_ANT_B_MSK;
   6324 	link_quality.general_params.dual_stream_ant_msk = LINK_QUAL_ANT_MSK;
   6325 	link_quality.agg_params.agg_dis_start_th = 3;
   6326 	link_quality.agg_params.agg_time_limit = LE_16(4000);
   6327 	link_quality.sta_id = IWH_AP_ID;
   6328 	err = iwh_cmd(sc, REPLY_TX_LINK_QUALITY_CMD, &link_quality,
   6329 	    sizeof (link_quality), 1);
   6330 	if (err != IWH_SUCCESS) {
   6331 		cmn_err(CE_WARN, "iwh_ap_lq(): "
   6332 		    "failed to config link quality table\n");
   6333 		return (err);
   6334 	}
   6335 
   6336 #ifdef	DEBUG
   6337 	IWH_DBG((IWH_DEBUG_HWRATE, "iwh_ap_lq(): "
   6338 	    "Rates in HW are as follows:\n"));
   6339 
   6340 	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
   6341 		IWH_DBG((IWH_DEBUG_HWRATE,
   6342 		    "Rate %d in HW is %x\n", i, link_quality.rate_n_flags[i]));
   6343 	}
   6344 #endif
   6345 
   6346 	return (err);
   6347 }
   6348 
   6349 /*
   6350  * When block ACK agreement has been set up between station and AP,
   6351  * Net80211 module will call this function to inform hardware about
   6352  * informations of this BA agreement.
   6353  * When AP wants to delete BA agreement that was originated by it,
   6354  * Net80211 modele will call this function to clean up relevant
   6355  * information in hardware.
   6356  */
   6357 static void
   6358 iwh_recv_action(struct ieee80211_node *in,
   6359     const uint8_t *frm, const uint8_t *efrm)
   6360 {
   6361 	struct ieee80211com *ic;
   6362 	iwh_sc_t *sc;
   6363 	const struct ieee80211_action *ia;
   6364 	uint16_t baparamset, baseqctl;
   6365 	uint32_t tid, ssn;
   6366 	iwh_add_sta_t node;
   6367 	int err = IWH_FAIL;
   6368 
   6369 	if ((NULL == in) || (NULL == frm)) {
   6370 		return;
   6371 	}
   6372 
   6373 	ic = in->in_ic;
   6374 	if (NULL == ic) {
   6375 		return;
   6376 	}
   6377 
   6378 	sc = (iwh_sc_t *)ic;
   6379 
   6380 	sc->sc_recv_action(in, frm, efrm);
   6381 
   6382 	ia = (const struct ieee80211_action *)frm;
   6383 	if (ia->ia_category != IEEE80211_ACTION_CAT_BA) {
   6384 		return;
   6385 	}
   6386 
   6387 	switch (ia->ia_action) {
   6388 	case IEEE80211_ACTION_BA_ADDBA_REQUEST:
   6389 		baparamset = *(uint16_t *)(frm + 3);
   6390 		baseqctl = *(uint16_t *)(frm + 7);
   6391 
   6392 		tid = MS(baparamset, IEEE80211_BAPS_TID);
   6393 		ssn = MS(baseqctl, IEEE80211_BASEQ_START);
   6394 
   6395 		(void) memset(&node, 0, sizeof (node));
   6396 		IEEE80211_ADDR_COPY(node.sta.addr, in->in_bssid);
   6397 		node.mode = STA_MODE_MODIFY_MSK;
   6398 		node.sta.sta_id = IWH_AP_ID;
   6399 
   6400 		node.station_flags_msk = 0;
   6401 		node.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
   6402 		node.add_immediate_ba_tid = (uint8_t)tid;
   6403 		node.add_immediate_ba_ssn = LE_16(ssn);
   6404 
   6405 		mutex_enter(&sc->sc_glock);
   6406 		err = iwh_cmd(sc, REPLY_ADD_STA, &node, sizeof (node), 1);
   6407 		if (err != IWH_SUCCESS) {
   6408 			cmn_err(CE_WARN, "iwh_recv_action(): "
   6409 			    "failed to setup RX block ACK\n");
   6410 			mutex_exit(&sc->sc_glock);
   6411 			return;
   6412 		}
   6413 		mutex_exit(&sc->sc_glock);
   6414 
   6415 		IWH_DBG((IWH_DEBUG_BA, "iwh_recv_action(): "
   6416 		    "RX block ACK "
   6417 		    "was setup on TID %d and SSN is %d.\n", tid, ssn));
   6418 
   6419 		return;
   6420 
   6421 	case IEEE80211_ACTION_BA_DELBA:
   6422 		baparamset = *(uint16_t *)(frm + 2);
   6423 
   6424 		if ((baparamset & IEEE80211_DELBAPS_INIT) == 0) {
   6425 			return;
   6426 		}
   6427 
   6428 		tid = MS(baparamset, IEEE80211_DELBAPS_TID);
   6429 
   6430 		(void) memset(&node, 0, sizeof (node));
   6431 		IEEE80211_ADDR_COPY(node.sta.addr, in->in_bssid);
   6432 		node.mode = STA_MODE_MODIFY_MSK;
   6433 		node.sta.sta_id = IWH_AP_ID;
   6434 
   6435 		node.station_flags_msk = 0;
   6436 		node.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
   6437 		node.add_immediate_ba_tid = (uint8_t)tid;
   6438 
   6439 		mutex_enter(&sc->sc_glock);
   6440 		err = iwh_cmd(sc, REPLY_ADD_STA, &node, sizeof (node), 1);
   6441 		if (err != IWH_SUCCESS) {
   6442 			cmn_err(CE_WARN, "iwh_recv_action(): "
   6443 			    "failed to delete RX block ACK\n");
   6444 			mutex_exit(&sc->sc_glock);
   6445 			return;
   6446 		}
   6447 		mutex_exit(&sc->sc_glock);
   6448 
   6449 		IWH_DBG((IWH_DEBUG_BA, "iwh_recv_action(): "
   6450 		    "RX block ACK "
   6451 		    "was deleted on TID %d.\n", tid));
   6452 
   6453 		return;
   6454 	}
   6455 }
   6456 
   6457 /*
   6458  * When local station wants to delete BA agreement that was originated by AP,
   6459  * Net80211 module will call this function to clean up relevant information
   6460  * in hardware.
   6461  */
   6462 static int
   6463 iwh_send_action(struct ieee80211_node *in,
   6464     int category, int action, uint16_t args[4])
   6465 {
   6466 	struct ieee80211com *ic;
   6467 	iwh_sc_t *sc;
   6468 	uint32_t tid;
   6469 	iwh_add_sta_t node;
   6470 	int ret = EIO;
   6471 	int err = IWH_FAIL;
   6472 
   6473 
   6474 	if (NULL == in) {
   6475 		return (ret);
   6476 	}
   6477 
   6478 	ic = in->in_ic;
   6479 	if (NULL == ic) {
   6480 		return (ret);
   6481 	}
   6482 
   6483 	sc = (iwh_sc_t *)ic;
   6484 
   6485 	ret = sc->sc_send_action(in, category, action, args);
   6486 
   6487 	if (category != IEEE80211_ACTION_CAT_BA) {
   6488 		return (ret);
   6489 	}
   6490 
   6491 	switch (action) {
   6492 	case IEEE80211_ACTION_BA_DELBA:
   6493 		if (IEEE80211_DELBAPS_INIT == args[1]) {
   6494 			return (ret);
   6495 		}
   6496 
   6497 		tid = args[0];
   6498 
   6499 		(void) memset(&node, 0, sizeof (node));
   6500 		IEEE80211_ADDR_COPY(node.sta.addr, in->in_bssid);
   6501 		node.mode = STA_MODE_MODIFY_MSK;
   6502 		node.sta.sta_id = IWH_AP_ID;
   6503 
   6504 		node.station_flags_msk = 0;
   6505 		node.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
   6506 		node.add_immediate_ba_tid = (uint8_t)tid;
   6507 
   6508 		mutex_enter(&sc->sc_glock);
   6509 		err = iwh_cmd(sc, REPLY_ADD_STA, &node, sizeof (node), 1);
   6510 		if (err != IWH_SUCCESS) {
   6511 			cmn_err(CE_WARN, "iwh_send_action(): "
   6512 			    "failed to delete RX balock ACK\n");
   6513 			mutex_exit(&sc->sc_glock);
   6514 			return (EIO);
   6515 		}
   6516 		mutex_exit(&sc->sc_glock);
   6517 
   6518 		IWH_DBG((IWH_DEBUG_BA, "iwh_send_action(): "
   6519 		    "RX block ACK "
   6520 		    "was deleted on TID %d.\n", tid));
   6521 
   6522 		break;
   6523 	}
   6524 
   6525 	return (ret);
   6526 }
   6527 
   6528 static int
   6529 iwh_reset_hw(iwh_sc_t *sc)
   6530 {
   6531 	uint32_t tmp;
   6532 	int n;
   6533 
   6534 	tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   6535 	IWH_WRITE(sc, CSR_HW_IF_CONFIG_REG,
   6536 	    tmp | CSR_HW_IF_CONFIG_REG_BITS_NIC_READY);
   6537 
   6538 	/*
   6539 	 * wait for HW ready
   6540 	 */
   6541 	for (n = 0; n < 5; n++) {
   6542 		if (IWH_READ(sc, CSR_HW_IF_CONFIG_REG) &
   6543 		    CSR_HW_IF_CONFIG_REG_BITS_NIC_READY) {
   6544 			break;
   6545 		}
   6546 		DELAY(10);
   6547 	}
   6548 
   6549 	if (n != 5) {
   6550 		return (IWH_SUCCESS);
   6551 	}
   6552 
   6553 	tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   6554 	IWH_WRITE(sc, CSR_HW_IF_CONFIG_REG,
   6555 	    tmp | CSR_HW_IF_CONFIG_REG_BITS_PREPARE);
   6556 
   6557 	for (n = 0; n < 15000; n++) {
   6558 		if (0 == (IWH_READ(sc, CSR_HW_IF_CONFIG_REG) &
   6559 		    CSR_HW_IF_CONFIG_REG_BITS_NIC_PREPARE_DONE)) {
   6560 			break;
   6561 		}
   6562 		DELAY(10);
   6563 	}
   6564 
   6565 	if (15000 == n) {
   6566 		return (ETIMEDOUT);
   6567 	}
   6568 
   6569 	tmp = IWH_READ(sc, CSR_HW_IF_CONFIG_REG);
   6570 	IWH_WRITE(sc, CSR_HW_IF_CONFIG_REG,
   6571 	    tmp | CSR_HW_IF_CONFIG_REG_BITS_NIC_READY);
   6572 
   6573 	/*
   6574 	 * wait for HW ready
   6575 	 */
   6576 	for (n = 0; n < 5; n++) {
   6577 		if (IWH_READ(sc, CSR_HW_IF_CONFIG_REG) &
   6578 		    CSR_HW_IF_CONFIG_REG_BITS_NIC_READY) {
   6579 			break;
   6580 		}
   6581 		DELAY(10);
   6582 	}
   6583 
   6584 	if (n != 5) {
   6585 		return (IWH_SUCCESS);
   6586 	} else {
   6587 		return (ETIMEDOUT);
   6588 	}
   6589 }
   6590