sys/dev/usb/wlan/if_rum.c

   1 /*      $FreeBSD$       */
   2
   3 /*-
   4  * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
   5  * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
   6  * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20
  21 #include <sys/cdefs.h>
  22 __FBSDID("$FreeBSD$");
  23
  24 /*-
  25  * Ralink Technology RT2501USB/RT2601USB chipset driver
  26  * http://www.ralinktech.com.tw/
  27  */
  28
  29 #include <sys/param.h>
  30 #include <sys/sockio.h>
  31 #include <sys/sysctl.h>
  32 #include <sys/lock.h>
  33 #include <sys/mutex.h>
  34 #include <sys/mbuf.h>
  35 #include <sys/kernel.h>
  36 #include <sys/socket.h>
  37 #include <sys/systm.h>
  38 #include <sys/malloc.h>
  39 #include <sys/module.h>
  40 #include <sys/bus.h>
  41 #include <sys/endian.h>
  42 #include <sys/kdb.h>
  43
  44 #include <machine/bus.h>
  45 #include <machine/resource.h>
  46 #include <sys/rman.h>
  47
  48 #include <net/bpf.h>
  49 #include <net/if.h>
  50 #include <net/if_arp.h>
  51 #include <net/ethernet.h>
  52 #include <net/if_dl.h>
  53 #include <net/if_media.h>
  54 #include <net/if_types.h>
  55
  56 #ifdef INET
  57 #include <netinet/in.h>
  58 #include <netinet/in_systm.h>
  59 #include <netinet/in_var.h>
  60 #include <netinet/if_ether.h>
  61 #include <netinet/ip.h>
  62 #endif
  63
  64 #include <net80211/ieee80211_var.h>
  65 #include <net80211/ieee80211_regdomain.h>
  66 #include <net80211/ieee80211_radiotap.h>
  67 #include <net80211/ieee80211_amrr.h>
  68
  69 #include <dev/usb/usb.h>
  70 #include <dev/usb/usbdi.h>
  71 #include "usbdevs.h"
  72
  73 #define USB_DEBUG_VAR rum_debug
  74 #include <dev/usb/usb_debug.h>
  75
  76 #include <dev/usb/wlan/if_rumreg.h>
  77 #include <dev/usb/wlan/if_rumvar.h>
  78 #include <dev/usb/wlan/if_rumfw.h>
  79
  80 #if USB_DEBUG
  81 static int rum_debug = 0;
  82
  83 SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
  84 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0,
  85     "Debug level");
  86 #endif
  87
  88 static const struct usb_device_id rum_devs[] = {
  89     { USB_VP(USB_VENDOR_ABOCOM,         USB_PRODUCT_ABOCOM_HWU54DM) },
  90     { USB_VP(USB_VENDOR_ABOCOM,         USB_PRODUCT_ABOCOM_RT2573_2) },
  91     { USB_VP(USB_VENDOR_ABOCOM,         USB_PRODUCT_ABOCOM_RT2573_3) },
  92     { USB_VP(USB_VENDOR_ABOCOM,         USB_PRODUCT_ABOCOM_RT2573_4) },
  93     { USB_VP(USB_VENDOR_ABOCOM,         USB_PRODUCT_ABOCOM_WUG2700) },
  94     { USB_VP(USB_VENDOR_AMIT,           USB_PRODUCT_AMIT_CGWLUSB2GO) },
  95     { USB_VP(USB_VENDOR_ASUS,           USB_PRODUCT_ASUS_RT2573_1) },
  96     { USB_VP(USB_VENDOR_ASUS,           USB_PRODUCT_ASUS_RT2573_2) },
  97     { USB_VP(USB_VENDOR_BELKIN,         USB_PRODUCT_BELKIN_F5D7050A) },
  98     { USB_VP(USB_VENDOR_BELKIN,         USB_PRODUCT_BELKIN_F5D9050V3) },
  99     { USB_VP(USB_VENDOR_CISCOLINKSYS,   USB_PRODUCT_CISCOLINKSYS_WUSB54GC) },
 100     { USB_VP(USB_VENDOR_CISCOLINKSYS,   USB_PRODUCT_CISCOLINKSYS_WUSB54GR) },
 101     { USB_VP(USB_VENDOR_CONCEPTRONIC2,  USB_PRODUCT_CONCEPTRONIC2_C54RU2) },
 102     { USB_VP(USB_VENDOR_COREGA,         USB_PRODUCT_COREGA_CGWLUSB2GL) },
 103     { USB_VP(USB_VENDOR_COREGA,         USB_PRODUCT_COREGA_CGWLUSB2GPX) },
 104     { USB_VP(USB_VENDOR_DICKSMITH,      USB_PRODUCT_DICKSMITH_CWD854F) },
 105     { USB_VP(USB_VENDOR_DICKSMITH,      USB_PRODUCT_DICKSMITH_RT2573) },
 106     { USB_VP(USB_VENDOR_DLINK2,         USB_PRODUCT_DLINK2_DWLG122C1) },
 107     { USB_VP(USB_VENDOR_DLINK2,         USB_PRODUCT_DLINK2_WUA1340) },
 108     { USB_VP(USB_VENDOR_DLINK2,         USB_PRODUCT_DLINK2_DWA111) },
 109     { USB_VP(USB_VENDOR_DLINK2,         USB_PRODUCT_DLINK2_DWA110) },
 110     { USB_VP(USB_VENDOR_GIGABYTE,       USB_PRODUCT_GIGABYTE_GNWB01GS) },
 111     { USB_VP(USB_VENDOR_GIGABYTE,       USB_PRODUCT_GIGABYTE_GNWI05GS) },
 112     { USB_VP(USB_VENDOR_GIGASET,        USB_PRODUCT_GIGASET_RT2573) },
 113     { USB_VP(USB_VENDOR_GOODWAY,        USB_PRODUCT_GOODWAY_RT2573) },
 114     { USB_VP(USB_VENDOR_GUILLEMOT,      USB_PRODUCT_GUILLEMOT_HWGUSB254LB) },
 115     { USB_VP(USB_VENDOR_GUILLEMOT,      USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) },
 116     { USB_VP(USB_VENDOR_HUAWEI3COM,     USB_PRODUCT_HUAWEI3COM_WUB320G) },
 117     { USB_VP(USB_VENDOR_MELCO,          USB_PRODUCT_MELCO_G54HP) },
 118     { USB_VP(USB_VENDOR_MELCO,          USB_PRODUCT_MELCO_SG54HP) },
 119     { USB_VP(USB_VENDOR_MSI,            USB_PRODUCT_MSI_RT2573_1) },
 120     { USB_VP(USB_VENDOR_MSI,            USB_PRODUCT_MSI_RT2573_2) },
 121     { USB_VP(USB_VENDOR_MSI,            USB_PRODUCT_MSI_RT2573_3) },
 122     { USB_VP(USB_VENDOR_MSI,            USB_PRODUCT_MSI_RT2573_4) },
 123     { USB_VP(USB_VENDOR_NOVATECH,       USB_PRODUCT_NOVATECH_RT2573) },
 124     { USB_VP(USB_VENDOR_PLANEX2,        USB_PRODUCT_PLANEX2_GWUS54HP) },
 125     { USB_VP(USB_VENDOR_PLANEX2,        USB_PRODUCT_PLANEX2_GWUS54MINI2) },
 126     { USB_VP(USB_VENDOR_PLANEX2,        USB_PRODUCT_PLANEX2_GWUSMM) },
 127     { USB_VP(USB_VENDOR_QCOM,           USB_PRODUCT_QCOM_RT2573) },
 128     { USB_VP(USB_VENDOR_QCOM,           USB_PRODUCT_QCOM_RT2573_2) },
 129     { USB_VP(USB_VENDOR_QCOM,           USB_PRODUCT_QCOM_RT2573_3) },
 130     { USB_VP(USB_VENDOR_RALINK,         USB_PRODUCT_RALINK_RT2573) },
 131     { USB_VP(USB_VENDOR_RALINK,         USB_PRODUCT_RALINK_RT2573_2) },
 132     { USB_VP(USB_VENDOR_RALINK,         USB_PRODUCT_RALINK_RT2671) },
 133     { USB_VP(USB_VENDOR_SITECOMEU,      USB_PRODUCT_SITECOMEU_WL113R2) },
 134     { USB_VP(USB_VENDOR_SITECOMEU,      USB_PRODUCT_SITECOMEU_WL172) },
 135     { USB_VP(USB_VENDOR_SPARKLAN,       USB_PRODUCT_SPARKLAN_RT2573) },
 136     { USB_VP(USB_VENDOR_SURECOM,        USB_PRODUCT_SURECOM_RT2573) },
 137 };
 138
 139 MODULE_DEPEND(rum, wlan, 1, 1, 1);
 140 MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1);
 141 MODULE_DEPEND(rum, usb, 1, 1, 1);
 142
 143 static device_probe_t rum_match;
 144 static device_attach_t rum_attach;
 145 static device_detach_t rum_detach;
 146
 147 static usb_callback_t rum_bulk_read_callback;
 148 static usb_callback_t rum_bulk_write_callback;
 149
 150 static usb_error_t      rum_do_request(struct rum_softc *sc,
 151                             struct usb_device_request *req, void *data);
 152 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
 153                             const char name[IFNAMSIZ], int unit, int opmode,
 154                             int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
 155                             const uint8_t mac[IEEE80211_ADDR_LEN]);
 156 static void             rum_vap_delete(struct ieee80211vap *);
 157 static void             rum_tx_free(struct rum_tx_data *, int);
 158 static void             rum_setup_tx_list(struct rum_softc *);
 159 static void             rum_unsetup_tx_list(struct rum_softc *);
 160 static int              rum_newstate(struct ieee80211vap *,
 161                             enum ieee80211_state, int);
 162 static void             rum_setup_tx_desc(struct rum_softc *,
 163                             struct rum_tx_desc *, uint32_t, uint16_t, int,
 164                             int);
 165 static int              rum_tx_mgt(struct rum_softc *, struct mbuf *,
 166                             struct ieee80211_node *);
 167 static int              rum_tx_raw(struct rum_softc *, struct mbuf *,
 168                             struct ieee80211_node *,
 169                             const struct ieee80211_bpf_params *);
 170 static int              rum_tx_data(struct rum_softc *, struct mbuf *,
 171                             struct ieee80211_node *);
 172 static void             rum_start(struct ifnet *);
 173 static int              rum_ioctl(struct ifnet *, u_long, caddr_t);
 174 static void             rum_eeprom_read(struct rum_softc *, uint16_t, void *,
 175                             int);
 176 static uint32_t         rum_read(struct rum_softc *, uint16_t);
 177 static void             rum_read_multi(struct rum_softc *, uint16_t, void *,
 178                             int);
 179 static usb_error_t      rum_write(struct rum_softc *, uint16_t, uint32_t);
 180 static usb_error_t      rum_write_multi(struct rum_softc *, uint16_t, void *,
 181                             size_t);
 182 static void             rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
 183 static uint8_t          rum_bbp_read(struct rum_softc *, uint8_t);
 184 static void             rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
 185 static void             rum_select_antenna(struct rum_softc *);
 186 static void             rum_enable_mrr(struct rum_softc *);
 187 static void             rum_set_txpreamble(struct rum_softc *);
 188 static void             rum_set_basicrates(struct rum_softc *);
 189 static void             rum_select_band(struct rum_softc *,
 190                             struct ieee80211_channel *);
 191 static void             rum_set_chan(struct rum_softc *,
 192                             struct ieee80211_channel *);
 193 static void             rum_enable_tsf_sync(struct rum_softc *);
 194 static void             rum_enable_tsf(struct rum_softc *);
 195 static void             rum_update_slot(struct ifnet *);
 196 static void             rum_set_bssid(struct rum_softc *, const uint8_t *);
 197 static void             rum_set_macaddr(struct rum_softc *, const uint8_t *);
 198 static void             rum_update_promisc(struct ifnet *);
 199 static void             rum_setpromisc(struct rum_softc *);
 200 static const char       *rum_get_rf(int);
 201 static void             rum_read_eeprom(struct rum_softc *);
 202 static int              rum_bbp_init(struct rum_softc *);
 203 static void             rum_init_locked(struct rum_softc *);
 204 static void             rum_init(void *);
 205 static void             rum_stop(struct rum_softc *);
 206 static void             rum_load_microcode(struct rum_softc *, const uint8_t *,
 207                             size_t);
 208 static int              rum_prepare_beacon(struct rum_softc *,
 209                             struct ieee80211vap *);
 210 static int              rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
 211                             const struct ieee80211_bpf_params *);
 212 static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *,
 213                             const uint8_t mac[IEEE80211_ADDR_LEN]);
 214 static void             rum_newassoc(struct ieee80211_node *, int);
 215 static void             rum_scan_start(struct ieee80211com *);
 216 static void             rum_scan_end(struct ieee80211com *);
 217 static void             rum_set_channel(struct ieee80211com *);
 218 static int              rum_get_rssi(struct rum_softc *, uint8_t);
 219 static void             rum_amrr_start(struct rum_softc *,
 220                             struct ieee80211_node *);
 221 static void             rum_amrr_timeout(void *);
 222 static void             rum_amrr_task(void *, int);
 223 static int              rum_pause(struct rum_softc *, int);
 224
 225 static const struct {
 226         uint32_t        reg;
 227         uint32_t        val;
 228 } rum_def_mac[] = {
 229         { RT2573_TXRX_CSR0,  0x025fb032 },
 230         { RT2573_TXRX_CSR1,  0x9eaa9eaf },
 231         { RT2573_TXRX_CSR2,  0x8a8b8c8d },
 232         { RT2573_TXRX_CSR3,  0x00858687 },
 233         { RT2573_TXRX_CSR7,  0x2e31353b },
 234         { RT2573_TXRX_CSR8,  0x2a2a2a2c },
 235         { RT2573_TXRX_CSR15, 0x0000000f },
 236         { RT2573_MAC_CSR6,   0x00000fff },
 237         { RT2573_MAC_CSR8,   0x016c030a },
 238         { RT2573_MAC_CSR10,  0x00000718 },
 239         { RT2573_MAC_CSR12,  0x00000004 },
 240         { RT2573_MAC_CSR13,  0x00007f00 },
 241         { RT2573_SEC_CSR0,   0x00000000 },
 242         { RT2573_SEC_CSR1,   0x00000000 },
 243         { RT2573_SEC_CSR5,   0x00000000 },
 244         { RT2573_PHY_CSR1,   0x000023b0 },
 245         { RT2573_PHY_CSR5,   0x00040a06 },
 246         { RT2573_PHY_CSR6,   0x00080606 },
 247         { RT2573_PHY_CSR7,   0x00000408 },
 248         { RT2573_AIFSN_CSR,  0x00002273 },
 249         { RT2573_CWMIN_CSR,  0x00002344 },
 250         { RT2573_CWMAX_CSR,  0x000034aa }
 251 };
 252
 253 static const struct {
 254         uint8_t reg;
 255         uint8_t val;
 256 } rum_def_bbp[] = {
 257         {   3, 0x80 },
 258         {  15, 0x30 },
 259         {  17, 0x20 },
 260         {  21, 0xc8 },
 261         {  22, 0x38 },
 262         {  23, 0x06 },
 263         {  24, 0xfe },
 264         {  25, 0x0a },
 265         {  26, 0x0d },
 266         {  32, 0x0b },
 267         {  34, 0x12 },
 268         {  37, 0x07 },
 269         {  39, 0xf8 },
 270         {  41, 0x60 },
 271         {  53, 0x10 },
 272         {  54, 0x18 },
 273         {  60, 0x10 },
 274         {  61, 0x04 },
 275         {  62, 0x04 },
 276         {  75, 0xfe },
 277         {  86, 0xfe },
 278         {  88, 0xfe },
 279         {  90, 0x0f },
 280         {  99, 0x00 },
 281         { 102, 0x16 },
 282         { 107, 0x04 }
 283 };
 284
 285 static const struct rfprog {
 286         uint8_t         chan;
 287         uint32_t        r1, r2, r3, r4;
 288 }  rum_rf5226[] = {
 289         {   1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
 290         {   2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
 291         {   3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
 292         {   4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
 293         {   5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
 294         {   6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
 295         {   7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
 296         {   8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
 297         {   9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
 298         {  10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
 299         {  11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
 300         {  12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
 301         {  13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
 302         {  14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
 303
 304         {  34, 0x00b03, 0x20266, 0x36014, 0x30282 },
 305         {  38, 0x00b03, 0x20267, 0x36014, 0x30284 },
 306         {  42, 0x00b03, 0x20268, 0x36014, 0x30286 },
 307         {  46, 0x00b03, 0x20269, 0x36014, 0x30288 },
 308
 309         {  36, 0x00b03, 0x00266, 0x26014, 0x30288 },
 310         {  40, 0x00b03, 0x00268, 0x26014, 0x30280 },
 311         {  44, 0x00b03, 0x00269, 0x26014, 0x30282 },
 312         {  48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
 313         {  52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
 314         {  56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
 315         {  60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
 316         {  64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
 317
 318         { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
 319         { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
 320         { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
 321         { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
 322         { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
 323         { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
 324         { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
 325         { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
 326         { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
 327         { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
 328         { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
 329
 330         { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
 331         { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
 332         { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
 333         { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
 334         { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
 335 }, rum_rf5225[] = {
 336         {   1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
 337         {   2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
 338         {   3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
 339         {   4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
 340         {   5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
 341         {   6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
 342         {   7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
 343         {   8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
 344         {   9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
 345         {  10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
 346         {  11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
 347         {  12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
 348         {  13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
 349         {  14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
 350
 351         {  34, 0x00b33, 0x01266, 0x26014, 0x30282 },
 352         {  38, 0x00b33, 0x01267, 0x26014, 0x30284 },
 353         {  42, 0x00b33, 0x01268, 0x26014, 0x30286 },
 354         {  46, 0x00b33, 0x01269, 0x26014, 0x30288 },
 355
 356         {  36, 0x00b33, 0x01266, 0x26014, 0x30288 },
 357         {  40, 0x00b33, 0x01268, 0x26014, 0x30280 },
 358         {  44, 0x00b33, 0x01269, 0x26014, 0x30282 },
 359         {  48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
 360         {  52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
 361         {  56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
 362         {  60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
 363         {  64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
 364
 365         { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
 366         { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
 367         { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
 368         { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
 369         { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
 370         { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
 371         { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
 372         { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
 373         { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
 374         { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
 375         { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
 376
 377         { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
 378         { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
 379         { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
 380         { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
 381         { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
 382 };
 383
 384 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
 385         [RUM_BULK_WR] = {
 386                 .type = UE_BULK,
 387                 .endpoint = UE_ADDR_ANY,
 388                 .direction = UE_DIR_OUT,
 389                 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
 390                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 391                 .callback = rum_bulk_write_callback,
 392                 .timeout = 5000,        /* ms */
 393         },
 394         [RUM_BULK_RD] = {
 395                 .type = UE_BULK,
 396                 .endpoint = UE_ADDR_ANY,
 397                 .direction = UE_DIR_IN,
 398                 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
 399                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 400                 .callback = rum_bulk_read_callback,
 401         },
 402 };
 403
 404 static int
 405 rum_match(device_t self)
 406 {
 407         struct usb_attach_arg *uaa = device_get_ivars(self);
 408
 409         if (uaa->usb_mode != USB_MODE_HOST)
 410                 return (ENXIO);
 411         if (uaa->info.bConfigIndex != 0)
 412                 return (ENXIO);
 413         if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
 414                 return (ENXIO);
 415
 416         return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
 417 }
 418
 419 static int
 420 rum_attach(device_t self)
 421 {
 422         struct usb_attach_arg *uaa = device_get_ivars(self);
 423         struct rum_softc *sc = device_get_softc(self);
 424         struct ieee80211com *ic;
 425         struct ifnet *ifp;
 426         uint8_t iface_index, bands;
 427         uint32_t tmp;
 428         int error, ntries;
 429
 430         device_set_usb_desc(self);
 431         sc->sc_udev = uaa->device;
 432         sc->sc_dev = self;
 433
 434         mtx_init(&sc->sc_mtx, device_get_nameunit(self),
 435             MTX_NETWORK_LOCK, MTX_DEF);
 436
 437         iface_index = RT2573_IFACE_INDEX;
 438         error = usbd_transfer_setup(uaa->device, &iface_index,
 439             sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
 440         if (error) {
 441                 device_printf(self, "could not allocate USB transfers, "
 442                     "err=%s\n", usbd_errstr(error));
 443                 goto detach;
 444         }
 445
 446         RUM_LOCK(sc);
 447         /* retrieve RT2573 rev. no */
 448         for (ntries = 0; ntries < 100; ntries++) {
 449                 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
 450                         break;
 451                 if (rum_pause(sc, hz / 100))
 452                         break;
 453         }
 454         if (ntries == 100) {
 455                 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
 456                 RUM_UNLOCK(sc);
 457                 goto detach;
 458         }
 459
 460         /* retrieve MAC address and various other things from EEPROM */
 461         rum_read_eeprom(sc);
 462
 463         device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
 464             tmp, rum_get_rf(sc->rf_rev));
 465
 466         rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
 467         RUM_UNLOCK(sc);
 468
 469         ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
 470         if (ifp == NULL) {
 471                 device_printf(sc->sc_dev, "can not if_alloc()\n");
 472                 goto detach;
 473         }
 474         ic = ifp->if_l2com;
 475
 476         ifp->if_softc = sc;
 477         if_initname(ifp, "rum", device_get_unit(sc->sc_dev));
 478         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 479         ifp->if_init = rum_init;
 480         ifp->if_ioctl = rum_ioctl;
 481         ifp->if_start = rum_start;
 482         IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
 483         ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
 484         IFQ_SET_READY(&ifp->if_snd);
 485
 486         ic->ic_ifp = ifp;
 487         ic->ic_phytype = IEEE80211_T_OFDM;      /* not only, but not used */
 488
 489         /* set device capabilities */
 490         ic->ic_caps =
 491               IEEE80211_C_STA           /* station mode supported */
 492             | IEEE80211_C_IBSS          /* IBSS mode supported */
 493             | IEEE80211_C_MONITOR       /* monitor mode supported */
 494             | IEEE80211_C_HOSTAP        /* HostAp mode supported */
 495             | IEEE80211_C_TXPMGT        /* tx power management */
 496             | IEEE80211_C_SHPREAMBLE    /* short preamble supported */
 497             | IEEE80211_C_SHSLOT        /* short slot time supported */
 498             | IEEE80211_C_BGSCAN        /* bg scanning supported */
 499             | IEEE80211_C_WPA           /* 802.11i */
 500             ;
 501
 502         bands = 0;
 503         setbit(&bands, IEEE80211_MODE_11B);
 504         setbit(&bands, IEEE80211_MODE_11G);
 505         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226)
 506                 setbit(&bands, IEEE80211_MODE_11A);
 507         ieee80211_init_channels(ic, NULL, &bands);
 508
 509         ieee80211_ifattach(ic, sc->sc_bssid);
 510         ic->ic_update_promisc = rum_update_promisc;
 511         ic->ic_newassoc = rum_newassoc;
 512         ic->ic_raw_xmit = rum_raw_xmit;
 513         ic->ic_node_alloc = rum_node_alloc;
 514         ic->ic_scan_start = rum_scan_start;
 515         ic->ic_scan_end = rum_scan_end;
 516         ic->ic_set_channel = rum_set_channel;
 517
 518         ic->ic_vap_create = rum_vap_create;
 519         ic->ic_vap_delete = rum_vap_delete;
 520
 521         ieee80211_radiotap_attach(ic,
 522             &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
 523                 RT2573_TX_RADIOTAP_PRESENT,
 524             &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
 525                 RT2573_RX_RADIOTAP_PRESENT);
 526
 527         if (bootverbose)
 528                 ieee80211_announce(ic);
 529
 530         return (0);
 531
 532 detach:
 533         rum_detach(self);
 534         return (ENXIO);                 /* failure */
 535 }
 536
 537 static int
 538 rum_detach(device_t self)
 539 {
 540         struct rum_softc *sc = device_get_softc(self);
 541         struct ifnet *ifp = sc->sc_ifp;
 542         struct ieee80211com *ic;
 543
 544         /* stop all USB transfers */
 545         usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
 546
 547         /* free TX list, if any */
 548         RUM_LOCK(sc);
 549         rum_unsetup_tx_list(sc);
 550         RUM_UNLOCK(sc);
 551
 552         if (ifp) {
 553                 ic = ifp->if_l2com;
 554                 ieee80211_ifdetach(ic);
 555                 if_free(ifp);
 556         }
 557         mtx_destroy(&sc->sc_mtx);
 558
 559         return (0);
 560 }
 561
 562 static usb_error_t
 563 rum_do_request(struct rum_softc *sc,
 564     struct usb_device_request *req, void *data)
 565 {
 566         usb_error_t err;
 567         int ntries = 10;
 568
 569         while (ntries--) {
 570                 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
 571                     req, data, 0, NULL, 250 /* ms */);
 572                 if (err == 0)
 573                         break;
 574
 575                 DPRINTFN(1, "Control request failed, %s (retrying)\n",
 576                     usbd_errstr(err));
 577                 if (rum_pause(sc, hz / 100))
 578                         break;
 579         }
 580         return (err);
 581 }
 582
 583 static struct ieee80211vap *
 584 rum_vap_create(struct ieee80211com *ic,
 585         const char name[IFNAMSIZ], int unit, int opmode, int flags,
 586         const uint8_t bssid[IEEE80211_ADDR_LEN],
 587         const uint8_t mac[IEEE80211_ADDR_LEN])
 588 {
 589         struct rum_softc *sc = ic->ic_ifp->if_softc;
 590         struct rum_vap *rvp;
 591         struct ieee80211vap *vap;
 592
 593         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
 594                 return NULL;
 595         rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap),
 596             M_80211_VAP, M_NOWAIT | M_ZERO);
 597         if (rvp == NULL)
 598                 return NULL;
 599         vap = &rvp->vap;
 600         /* enable s/w bmiss handling for sta mode */
 601         ieee80211_vap_setup(ic, vap, name, unit, opmode,
 602             flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
 603
 604         /* override state transition machine */
 605         rvp->newstate = vap->iv_newstate;
 606         vap->iv_newstate = rum_newstate;
 607
 608         usb_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0);
 609         TASK_INIT(&rvp->amrr_task, 0, rum_amrr_task, rvp);
 610         ieee80211_amrr_init(&rvp->amrr, vap,
 611             IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
 612             IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD,
 613             1000 /* 1 sec */);
 614
 615         /* complete setup */
 616         ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
 617         ic->ic_opmode = opmode;
 618         return vap;
 619 }
 620
 621 static void
 622 rum_vap_delete(struct ieee80211vap *vap)
 623 {
 624         struct rum_vap *rvp = RUM_VAP(vap);
 625         struct ieee80211com *ic = vap->iv_ic;
 626
 627         usb_callout_drain(&rvp->amrr_ch);
 628         ieee80211_draintask(ic, &rvp->amrr_task);
 629         ieee80211_amrr_cleanup(&rvp->amrr);
 630         ieee80211_vap_detach(vap);
 631         free(rvp, M_80211_VAP);
 632 }
 633
 634 static void
 635 rum_tx_free(struct rum_tx_data *data, int txerr)
 636 {
 637         struct rum_softc *sc = data->sc;
 638
 639         if (data->m != NULL) {
 640                 if (data->m->m_flags & M_TXCB)
 641                         ieee80211_process_callback(data->ni, data->m,
 642                             txerr ? ETIMEDOUT : 0);
 643                 m_freem(data->m);
 644                 data->m = NULL;
 645
 646                 ieee80211_free_node(data->ni);
 647                 data->ni = NULL;
 648         }
 649         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 650         sc->tx_nfree++;
 651 }
 652
 653 static void
 654 rum_setup_tx_list(struct rum_softc *sc)
 655 {
 656         struct rum_tx_data *data;
 657         int i;
 658
 659         sc->tx_nfree = 0;
 660         STAILQ_INIT(&sc->tx_q);
 661         STAILQ_INIT(&sc->tx_free);
 662
 663         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 664                 data = &sc->tx_data[i];
 665
 666                 data->sc = sc;
 667                 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 668                 sc->tx_nfree++;
 669         }
 670 }
 671
 672 static void
 673 rum_unsetup_tx_list(struct rum_softc *sc)
 674 {
 675         struct rum_tx_data *data;
 676         int i;
 677
 678         /* make sure any subsequent use of the queues will fail */
 679         sc->tx_nfree = 0;
 680         STAILQ_INIT(&sc->tx_q);
 681         STAILQ_INIT(&sc->tx_free);
 682
 683         /* free up all node references and mbufs */
 684         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 685                 data = &sc->tx_data[i];
 686
 687                 if (data->m != NULL) {
 688                         m_freem(data->m);
 689                         data->m = NULL;
 690                 }
 691                 if (data->ni != NULL) {
 692                         ieee80211_free_node(data->ni);
 693                         data->ni = NULL;
 694                 }
 695         }
 696 }
 697
 698 static int
 699 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 700 {
 701         struct rum_vap *rvp = RUM_VAP(vap);
 702         struct ieee80211com *ic = vap->iv_ic;
 703         struct rum_softc *sc = ic->ic_ifp->if_softc;
 704         const struct ieee80211_txparam *tp;
 705         enum ieee80211_state ostate;
 706         struct ieee80211_node *ni;
 707         uint32_t tmp;
 708
 709         ostate = vap->iv_state;
 710         DPRINTF("%s -> %s\n",
 711                 ieee80211_state_name[ostate],
 712                 ieee80211_state_name[nstate]);
 713
 714         IEEE80211_UNLOCK(ic);
 715         RUM_LOCK(sc);
 716         usb_callout_stop(&rvp->amrr_ch);
 717
 718         switch (nstate) {
 719         case IEEE80211_S_INIT:
 720                 if (ostate == IEEE80211_S_RUN) {
 721                         /* abort TSF synchronization */
 722                         tmp = rum_read(sc, RT2573_TXRX_CSR9);
 723                         rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
 724                 }
 725                 break;
 726
 727         case IEEE80211_S_RUN:
 728                 ni = vap->iv_bss;
 729
 730                 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
 731                         rum_update_slot(ic->ic_ifp);
 732                         rum_enable_mrr(sc);
 733                         rum_set_txpreamble(sc);
 734                         rum_set_basicrates(sc);
 735                         IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
 736                         rum_set_bssid(sc, sc->sc_bssid);
 737                 }
 738
 739                 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
 740                     vap->iv_opmode == IEEE80211_M_IBSS)
 741                         rum_prepare_beacon(sc, vap);
 742
 743                 if (vap->iv_opmode != IEEE80211_M_MONITOR)
 744                         rum_enable_tsf_sync(sc);
 745                 else
 746                         rum_enable_tsf(sc);
 747
 748                 /* enable automatic rate adaptation */
 749                 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
 750                 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
 751                         rum_amrr_start(sc, ni);
 752                 break;
 753         default:
 754                 break;
 755         }
 756         RUM_UNLOCK(sc);
 757         IEEE80211_LOCK(ic);
 758         return (rvp->newstate(vap, nstate, arg));
 759 }
 760
 761 static void
 762 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
 763 {
 764         struct rum_softc *sc = usbd_xfer_softc(xfer);
 765         struct ifnet *ifp = sc->sc_ifp;
 766         struct ieee80211vap *vap;
 767         struct rum_tx_data *data;
 768         struct mbuf *m;
 769         struct usb_page_cache *pc;
 770         unsigned int len;
 771         int actlen, sumlen;
 772
 773         usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
 774
 775         switch (USB_GET_STATE(xfer)) {
 776         case USB_ST_TRANSFERRED:
 777                 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
 778
 779                 /* free resources */
 780                 data = usbd_xfer_get_priv(xfer);
 781                 rum_tx_free(data, 0);
 782                 usbd_xfer_set_priv(xfer, NULL);
 783
 784                 ifp->if_opackets++;
 785                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 786
 787                 /* FALLTHROUGH */
 788         case USB_ST_SETUP:
 789 tr_setup:
 790                 data = STAILQ_FIRST(&sc->tx_q);
 791                 if (data) {
 792                         STAILQ_REMOVE_HEAD(&sc->tx_q, next);
 793                         m = data->m;
 794
 795                         if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) {
 796                                 DPRINTFN(0, "data overflow, %u bytes\n",
 797                                     m->m_pkthdr.len);
 798                                 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
 799                         }
 800                         pc = usbd_xfer_get_frame(xfer, 0);
 801                         usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
 802                         usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
 803                             m->m_pkthdr.len);
 804
 805                         vap = data->ni->ni_vap;
 806                         if (ieee80211_radiotap_active_vap(vap)) {
 807                                 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
 808
 809                                 tap->wt_flags = 0;
 810                                 tap->wt_rate = data->rate;
 811                                 tap->wt_antenna = sc->tx_ant;
 812
 813                                 ieee80211_radiotap_tx(vap, m);
 814                         }
 815
 816                         /* align end on a 4-bytes boundary */
 817                         len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
 818                         if ((len % 64) == 0)
 819                                 len += 4;
 820
 821                         DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
 822                             m->m_pkthdr.len, len);
 823
 824                         usbd_xfer_set_frame_len(xfer, 0, len);
 825                         usbd_xfer_set_priv(xfer, data);
 826
 827                         usbd_transfer_submit(xfer);
 828                 }
 829                 RUM_UNLOCK(sc);
 830                 rum_start(ifp);
 831                 RUM_LOCK(sc);
 832                 break;
 833
 834         default:                        /* Error */
 835                 DPRINTFN(11, "transfer error, %s\n",
 836                     usbd_errstr(error));
 837
 838                 ifp->if_oerrors++;
 839                 data = usbd_xfer_get_priv(xfer);
 840                 if (data != NULL) {
 841                         rum_tx_free(data, error);
 842                         usbd_xfer_set_priv(xfer, NULL);
 843                 }
 844
 845                 if (error == USB_ERR_STALLED) {
 846                         /* try to clear stall first */
 847                         usbd_xfer_set_stall(xfer);
 848                         goto tr_setup;
 849                 }
 850                 if (error == USB_ERR_TIMEOUT)
 851                         device_printf(sc->sc_dev, "device timeout\n");
 852                 break;
 853         }
 854 }
 855
 856 static void
 857 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
 858 {
 859         struct rum_softc *sc = usbd_xfer_softc(xfer);
 860         struct ifnet *ifp = sc->sc_ifp;
 861         struct ieee80211com *ic = ifp->if_l2com;
 862         struct ieee80211_node *ni;
 863         struct mbuf *m = NULL;
 864         struct usb_page_cache *pc;
 865         uint32_t flags;
 866         uint8_t rssi = 0;
 867         int len;
 868
 869         usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
 870
 871         switch (USB_GET_STATE(xfer)) {
 872         case USB_ST_TRANSFERRED:
 873
 874                 DPRINTFN(15, "rx done, actlen=%d\n", len);
 875
 876                 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
 877                         DPRINTF("%s: xfer too short %d\n",
 878                             device_get_nameunit(sc->sc_dev), len);
 879                         ifp->if_ierrors++;
 880                         goto tr_setup;
 881                 }
 882
 883                 len -= RT2573_RX_DESC_SIZE;
 884                 pc = usbd_xfer_get_frame(xfer, 0);
 885                 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
 886
 887                 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
 888                 flags = le32toh(sc->sc_rx_desc.flags);
 889                 if (flags & RT2573_RX_CRC_ERROR) {
 890                         /*
 891                          * This should not happen since we did not
 892                          * request to receive those frames when we
 893                          * filled RUM_TXRX_CSR2:
 894                          */
 895                         DPRINTFN(5, "PHY or CRC error\n");
 896                         ifp->if_ierrors++;
 897                         goto tr_setup;
 898                 }
 899
 900                 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
 901                 if (m == NULL) {
 902                         DPRINTF("could not allocate mbuf\n");
 903                         ifp->if_ierrors++;
 904                         goto tr_setup;
 905                 }
 906                 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
 907                     mtod(m, uint8_t *), len);
 908
 909                 /* finalize mbuf */
 910                 m->m_pkthdr.rcvif = ifp;
 911                 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
 912
 913                 if (ieee80211_radiotap_active(ic)) {
 914                         struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
 915
 916                         /* XXX read tsf */
 917                         tap->wr_flags = 0;
 918                         tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
 919                             (flags & RT2573_RX_OFDM) ?
 920                             IEEE80211_T_OFDM : IEEE80211_T_CCK);
 921                         tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
 922                         tap->wr_antnoise = RT2573_NOISE_FLOOR;
 923                         tap->wr_antenna = sc->rx_ant;
 924                 }
 925                 /* FALLTHROUGH */
 926         case USB_ST_SETUP:
 927 tr_setup:
 928                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
 929                 usbd_transfer_submit(xfer);
 930
 931                 /*
 932                  * At the end of a USB callback it is always safe to unlock
 933                  * the private mutex of a device! That is why we do the
 934                  * "ieee80211_input" here, and not some lines up!
 935                  */
 936                 RUM_UNLOCK(sc);
 937                 if (m) {
 938                         ni = ieee80211_find_rxnode(ic,
 939                             mtod(m, struct ieee80211_frame_min *));
 940                         if (ni != NULL) {
 941                                 (void) ieee80211_input(ni, m, rssi,
 942                                     RT2573_NOISE_FLOOR);
 943                                 ieee80211_free_node(ni);
 944                         } else
 945                                 (void) ieee80211_input_all(ic, m, rssi,
 946                                     RT2573_NOISE_FLOOR);
 947                 }
 948                 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
 949                     !IFQ_IS_EMPTY(&ifp->if_snd))
 950                         rum_start(ifp);
 951                 RUM_LOCK(sc);
 952                 return;
 953
 954         default:                        /* Error */
 955                 if (error != USB_ERR_CANCELLED) {
 956                         /* try to clear stall first */
 957                         usbd_xfer_set_stall(xfer);
 958                         goto tr_setup;
 959                 }
 960                 return;
 961         }
 962 }
 963
 964 static uint8_t
 965 rum_plcp_signal(int rate)
 966 {
 967         switch (rate) {
 968         /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
 969         case 12:        return 0xb;
 970         case 18:        return 0xf;
 971         case 24:        return 0xa;
 972         case 36:        return 0xe;
 973         case 48:        return 0x9;
 974         case 72:        return 0xd;
 975         case 96:        return 0x8;
 976         case 108:       return 0xc;
 977
 978         /* CCK rates (NB: not IEEE std, device-specific) */
 979         case 2:         return 0x0;
 980         case 4:         return 0x1;
 981         case 11:        return 0x2;
 982         case 22:        return 0x3;
 983         }
 984         return 0xff;            /* XXX unsupported/unknown rate */
 985 }
 986
 987 static void
 988 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
 989     uint32_t flags, uint16_t xflags, int len, int rate)
 990 {
 991         struct ifnet *ifp = sc->sc_ifp;
 992         struct ieee80211com *ic = ifp->if_l2com;
 993         uint16_t plcp_length;
 994         int remainder;
 995
 996         desc->flags = htole32(flags);
 997         desc->flags |= htole32(RT2573_TX_VALID);
 998         desc->flags |= htole32(len << 16);
 999
1000         desc->xflags = htole16(xflags);
1001
1002         desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) |
1003             RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10));
1004
1005         /* setup PLCP fields */
1006         desc->plcp_signal  = rum_plcp_signal(rate);
1007         desc->plcp_service = 4;
1008
1009         len += IEEE80211_CRC_LEN;
1010         if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1011                 desc->flags |= htole32(RT2573_TX_OFDM);
1012
1013                 plcp_length = len & 0xfff;
1014                 desc->plcp_length_hi = plcp_length >> 6;
1015                 desc->plcp_length_lo = plcp_length & 0x3f;
1016         } else {
1017                 plcp_length = (16 * len + rate - 1) / rate;
1018                 if (rate == 22) {
1019                         remainder = (16 * len) % 22;
1020                         if (remainder != 0 && remainder < 7)
1021                                 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1022                 }
1023                 desc->plcp_length_hi = plcp_length >> 8;
1024                 desc->plcp_length_lo = plcp_length & 0xff;
1025
1026                 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1027                         desc->plcp_signal |= 0x08;
1028         }
1029 }
1030
1031 static int
1032 rum_sendprot(struct rum_softc *sc,
1033     const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1034 {
1035         struct ieee80211com *ic = ni->ni_ic;
1036         const struct ieee80211_frame *wh;
1037         struct rum_tx_data *data;
1038         struct mbuf *mprot;
1039         int protrate, ackrate, pktlen, flags, isshort;
1040         uint16_t dur;
1041
1042         RUM_LOCK_ASSERT(sc, MA_OWNED);
1043         KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1044             ("protection %d", prot));
1045
1046         wh = mtod(m, const struct ieee80211_frame *);
1047         pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1048
1049         protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1050         ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1051
1052         isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1053         dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort);
1054             + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1055         flags = RT2573_TX_MORE_FRAG;
1056         if (prot == IEEE80211_PROT_RTSCTS) {
1057                 /* NB: CTS is the same size as an ACK */
1058                 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1059                 flags |= RT2573_TX_NEED_ACK;
1060                 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1061         } else {
1062                 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1063         }
1064         if (mprot == NULL) {
1065                 /* XXX stat + msg */
1066                 return (ENOBUFS);
1067         }
1068         data = STAILQ_FIRST(&sc->tx_free);
1069         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1070         sc->tx_nfree--;
1071
1072         data->m = mprot;
1073         data->ni = ieee80211_ref_node(ni);
1074         data->rate = protrate;
1075         rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate);
1076
1077         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1078         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1079
1080         return 0;
1081 }
1082
1083 static int
1084 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1085 {
1086         struct ieee80211vap *vap = ni->ni_vap;
1087         struct ifnet *ifp = sc->sc_ifp;
1088         struct ieee80211com *ic = ifp->if_l2com;
1089         struct rum_tx_data *data;
1090         struct ieee80211_frame *wh;
1091         const struct ieee80211_txparam *tp;
1092         struct ieee80211_key *k;
1093         uint32_t flags = 0;
1094         uint16_t dur;
1095
1096         RUM_LOCK_ASSERT(sc, MA_OWNED);
1097
1098         data = STAILQ_FIRST(&sc->tx_free);
1099         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1100         sc->tx_nfree--;
1101
1102         wh = mtod(m0, struct ieee80211_frame *);
1103         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1104                 k = ieee80211_crypto_encap(ni, m0);
1105                 if (k == NULL) {
1106                         m_freem(m0);
1107                         return ENOBUFS;
1108                 }
1109                 wh = mtod(m0, struct ieee80211_frame *);
1110         }
1111
1112         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1113
1114         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1115                 flags |= RT2573_TX_NEED_ACK;
1116
1117                 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1118                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1119                 *(uint16_t *)wh->i_dur = htole16(dur);
1120
1121                 /* tell hardware to add timestamp for probe responses */
1122                 if ((wh->i_fc[0] &
1123                     (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1124                     (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1125                         flags |= RT2573_TX_TIMESTAMP;
1126         }
1127
1128         data->m = m0;
1129         data->ni = ni;
1130         data->rate = tp->mgmtrate;
1131
1132         rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate);
1133
1134         DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1135             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1136
1137         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1138         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1139
1140         return (0);
1141 }
1142
1143 static int
1144 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1145     const struct ieee80211_bpf_params *params)
1146 {
1147         struct ieee80211com *ic = ni->ni_ic;
1148         struct rum_tx_data *data;
1149         uint32_t flags;
1150         int rate, error;
1151
1152         RUM_LOCK_ASSERT(sc, MA_OWNED);
1153         KASSERT(params != NULL, ("no raw xmit params"));
1154
1155         rate = params->ibp_rate0;
1156         if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1157                 m_freem(m0);
1158                 return EINVAL;
1159         }
1160         flags = 0;
1161         if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1162                 flags |= RT2573_TX_NEED_ACK;
1163         if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1164                 error = rum_sendprot(sc, m0, ni,
1165                     params->ibp_flags & IEEE80211_BPF_RTS ?
1166                          IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1167                     rate);
1168                 if (error || sc->tx_nfree == 0) {
1169                         m_freem(m0);
1170                         return ENOBUFS;
1171                 }
1172                 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1173         }
1174
1175         data = STAILQ_FIRST(&sc->tx_free);
1176         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1177         sc->tx_nfree--;
1178
1179         data->m = m0;
1180         data->ni = ni;
1181         data->rate = rate;
1182
1183         /* XXX need to setup descriptor ourself */
1184         rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1185
1186         DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1187             m0->m_pkthdr.len, rate);
1188
1189         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1190         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1191
1192         return 0;
1193 }
1194
1195 static int
1196 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1197 {
1198         struct ieee80211vap *vap = ni->ni_vap;
1199         struct ifnet *ifp = sc->sc_ifp;
1200         struct ieee80211com *ic = ifp->if_l2com;
1201         struct rum_tx_data *data;
1202         struct ieee80211_frame *wh;
1203         const struct ieee80211_txparam *tp;
1204         struct ieee80211_key *k;
1205         uint32_t flags = 0;
1206         uint16_t dur;
1207         int error, rate;
1208
1209         RUM_LOCK_ASSERT(sc, MA_OWNED);
1210
1211         wh = mtod(m0, struct ieee80211_frame *);
1212
1213         tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1214         if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1215                 rate = tp->mcastrate;
1216         else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1217                 rate = tp->ucastrate;
1218         else
1219                 rate = ni->ni_txrate;
1220
1221         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1222                 k = ieee80211_crypto_encap(ni, m0);
1223                 if (k == NULL) {
1224                         m_freem(m0);
1225                         return ENOBUFS;
1226                 }
1227
1228                 /* packet header may have moved, reset our local pointer */
1229                 wh = mtod(m0, struct ieee80211_frame *);
1230         }
1231
1232         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1233                 int prot = IEEE80211_PROT_NONE;
1234                 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1235                         prot = IEEE80211_PROT_RTSCTS;
1236                 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1237                     ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1238                         prot = ic->ic_protmode;
1239                 if (prot != IEEE80211_PROT_NONE) {
1240                         error = rum_sendprot(sc, m0, ni, prot, rate);
1241                         if (error || sc->tx_nfree == 0) {
1242                                 m_freem(m0);
1243                                 return ENOBUFS;
1244                         }
1245                         flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1246                 }
1247         }
1248
1249         data = STAILQ_FIRST(&sc->tx_free);
1250         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1251         sc->tx_nfree--;
1252
1253         data->m = m0;
1254         data->ni = ni;
1255         data->rate = rate;
1256
1257         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1258                 flags |= RT2573_TX_NEED_ACK;
1259                 flags |= RT2573_TX_MORE_FRAG;
1260
1261                 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1262                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1263                 *(uint16_t *)wh->i_dur = htole16(dur);
1264         }
1265
1266         rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1267
1268         DPRINTFN(10, "sending frame len=%d rate=%d\n",
1269             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1270
1271         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1272         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1273
1274         return 0;
1275 }
1276
1277 static void
1278 rum_start(struct ifnet *ifp)
1279 {
1280         struct rum_softc *sc = ifp->if_softc;
1281         struct ieee80211_node *ni;
1282         struct mbuf *m;
1283
1284         RUM_LOCK(sc);
1285         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1286                 RUM_UNLOCK(sc);
1287                 return;
1288         }
1289         for (;;) {
1290                 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1291                 if (m == NULL)
1292                         break;
1293                 if (sc->tx_nfree < RUM_TX_MINFREE) {
1294                         IFQ_DRV_PREPEND(&ifp->if_snd, m);
1295                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1296                         break;
1297                 }
1298                 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1299                 if (rum_tx_data(sc, m, ni) != 0) {
1300                         ieee80211_free_node(ni);
1301                         ifp->if_oerrors++;
1302                         break;
1303                 }
1304         }
1305         RUM_UNLOCK(sc);
1306 }
1307
1308 static int
1309 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1310 {
1311         struct rum_softc *sc = ifp->if_softc;
1312         struct ieee80211com *ic = ifp->if_l2com;
1313         struct ifreq *ifr = (struct ifreq *) data;
1314         int error = 0, startall = 0;
1315
1316         switch (cmd) {
1317         case SIOCSIFFLAGS:
1318                 RUM_LOCK(sc);
1319                 if (ifp->if_flags & IFF_UP) {
1320                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1321                                 rum_init_locked(sc);
1322                                 startall = 1;
1323                         } else
1324                                 rum_setpromisc(sc);
1325                 } else {
1326                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1327                                 rum_stop(sc);
1328                 }
1329                 RUM_UNLOCK(sc);
1330                 if (startall)
1331                         ieee80211_start_all(ic);
1332                 break;
1333         case SIOCGIFMEDIA:
1334                 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1335                 break;
1336         case SIOCGIFADDR:
1337                 error = ether_ioctl(ifp, cmd, data);
1338                 break;
1339         default:
1340                 error = EINVAL;
1341                 break;
1342         }
1343         return error;
1344 }
1345
1346 static void
1347 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1348 {
1349         struct usb_device_request req;
1350         usb_error_t error;
1351
1352         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1353         req.bRequest = RT2573_READ_EEPROM;
1354         USETW(req.wValue, 0);
1355         USETW(req.wIndex, addr);
1356         USETW(req.wLength, len);
1357
1358         error = rum_do_request(sc, &req, buf);
1359         if (error != 0) {
1360                 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1361                     usbd_errstr(error));
1362         }
1363 }
1364
1365 static uint32_t
1366 rum_read(struct rum_softc *sc, uint16_t reg)
1367 {
1368         uint32_t val;
1369
1370         rum_read_multi(sc, reg, &val, sizeof val);
1371
1372         return le32toh(val);
1373 }
1374
1375 static void
1376 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1377 {
1378         struct usb_device_request req;
1379         usb_error_t error;
1380
1381         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1382         req.bRequest = RT2573_READ_MULTI_MAC;
1383         USETW(req.wValue, 0);
1384         USETW(req.wIndex, reg);
1385         USETW(req.wLength, len);
1386
1387         error = rum_do_request(sc, &req, buf);
1388         if (error != 0) {
1389                 device_printf(sc->sc_dev,
1390                     "could not multi read MAC register: %s\n",
1391                     usbd_errstr(error));
1392         }
1393 }
1394
1395 static usb_error_t
1396 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1397 {
1398         uint32_t tmp = htole32(val);
1399
1400         return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1401 }
1402
1403 static usb_error_t
1404 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1405 {
1406         struct usb_device_request req;
1407         usb_error_t error;
1408
1409         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1410         req.bRequest = RT2573_WRITE_MULTI_MAC;
1411         USETW(req.wValue, 0);
1412         USETW(req.wIndex, reg);
1413         USETW(req.wLength, len);
1414
1415         error = rum_do_request(sc, &req, buf);
1416         if (error != 0) {
1417                 device_printf(sc->sc_dev,
1418                     "could not multi write MAC register: %s\n",
1419                     usbd_errstr(error));
1420         }
1421         return (error);
1422 }
1423
1424 static void
1425 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1426 {
1427         uint32_t tmp;
1428         int ntries;
1429
1430         DPRINTFN(2, "reg=0x%08x\n", reg);
1431
1432         for (ntries = 0; ntries < 100; ntries++) {
1433                 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1434                         break;
1435                 if (rum_pause(sc, hz / 100))
1436                         break;
1437         }
1438         if (ntries == 100) {
1439                 device_printf(sc->sc_dev, "could not write to BBP\n");
1440                 return;
1441         }
1442
1443         tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1444         rum_write(sc, RT2573_PHY_CSR3, tmp);
1445 }
1446
1447 static uint8_t
1448 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1449 {
1450         uint32_t val;
1451         int ntries;
1452
1453         DPRINTFN(2, "reg=0x%08x\n", reg);
1454
1455         for (ntries = 0; ntries < 100; ntries++) {
1456                 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1457                         break;
1458                 if (rum_pause(sc, hz / 100))
1459                         break;
1460         }
1461         if (ntries == 100) {
1462                 device_printf(sc->sc_dev, "could not read BBP\n");
1463                 return 0;
1464         }
1465
1466         val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1467         rum_write(sc, RT2573_PHY_CSR3, val);
1468
1469         for (ntries = 0; ntries < 100; ntries++) {
1470                 val = rum_read(sc, RT2573_PHY_CSR3);
1471                 if (!(val & RT2573_BBP_BUSY))
1472                         return val & 0xff;
1473                 if (rum_pause(sc, hz / 100))
1474                         break;
1475         }
1476
1477         device_printf(sc->sc_dev, "could not read BBP\n");
1478         return 0;
1479 }
1480
1481 static void
1482 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1483 {
1484         uint32_t tmp;
1485         int ntries;
1486
1487         for (ntries = 0; ntries < 100; ntries++) {
1488                 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1489                         break;
1490                 if (rum_pause(sc, hz / 100))
1491                         break;
1492         }
1493         if (ntries == 100) {
1494                 device_printf(sc->sc_dev, "could not write to RF\n");
1495                 return;
1496         }
1497
1498         tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1499             (reg & 3);
1500         rum_write(sc, RT2573_PHY_CSR4, tmp);
1501
1502         /* remember last written value in sc */
1503         sc->rf_regs[reg] = val;
1504
1505         DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1506 }
1507
1508 static void
1509 rum_select_antenna(struct rum_softc *sc)
1510 {
1511         uint8_t bbp4, bbp77;
1512         uint32_t tmp;
1513
1514         bbp4  = rum_bbp_read(sc, 4);
1515         bbp77 = rum_bbp_read(sc, 77);
1516
1517         /* TBD */
1518
1519         /* make sure Rx is disabled before switching antenna */
1520         tmp = rum_read(sc, RT2573_TXRX_CSR0);
1521         rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1522
1523         rum_bbp_write(sc,  4, bbp4);
1524         rum_bbp_write(sc, 77, bbp77);
1525
1526         rum_write(sc, RT2573_TXRX_CSR0, tmp);
1527 }
1528
1529 /*
1530  * Enable multi-rate retries for frames sent at OFDM rates.
1531  * In 802.11b/g mode, allow fallback to CCK rates.
1532  */
1533 static void
1534 rum_enable_mrr(struct rum_softc *sc)
1535 {
1536         struct ifnet *ifp = sc->sc_ifp;
1537         struct ieee80211com *ic = ifp->if_l2com;
1538         uint32_t tmp;
1539
1540         tmp = rum_read(sc, RT2573_TXRX_CSR4);
1541
1542         tmp &= ~RT2573_MRR_CCK_FALLBACK;
1543         if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
1544                 tmp |= RT2573_MRR_CCK_FALLBACK;
1545         tmp |= RT2573_MRR_ENABLED;
1546
1547         rum_write(sc, RT2573_TXRX_CSR4, tmp);
1548 }
1549
1550 static void
1551 rum_set_txpreamble(struct rum_softc *sc)
1552 {
1553         struct ifnet *ifp = sc->sc_ifp;
1554         struct ieee80211com *ic = ifp->if_l2com;
1555         uint32_t tmp;
1556
1557         tmp = rum_read(sc, RT2573_TXRX_CSR4);
1558
1559         tmp &= ~RT2573_SHORT_PREAMBLE;
1560         if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1561                 tmp |= RT2573_SHORT_PREAMBLE;
1562
1563         rum_write(sc, RT2573_TXRX_CSR4, tmp);
1564 }
1565
1566 static void
1567 rum_set_basicrates(struct rum_softc *sc)
1568 {
1569         struct ifnet *ifp = sc->sc_ifp;
1570         struct ieee80211com *ic = ifp->if_l2com;
1571
1572         /* update basic rate set */
1573         if (ic->ic_curmode == IEEE80211_MODE_11B) {
1574                 /* 11b basic rates: 1, 2Mbps */
1575                 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1576         } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
1577                 /* 11a basic rates: 6, 12, 24Mbps */
1578                 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1579         } else {
1580                 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
1581                 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
1582         }
1583 }
1584
1585 /*
1586  * Reprogram MAC/BBP to switch to a new band.  Values taken from the reference
1587  * driver.
1588  */
1589 static void
1590 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1591 {
1592         uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1593         uint32_t tmp;
1594
1595         /* update all BBP registers that depend on the band */
1596         bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1597         bbp35 = 0x50; bbp97 = 0x48; bbp98  = 0x48;
1598         if (IEEE80211_IS_CHAN_5GHZ(c)) {
1599                 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1600                 bbp35 += 0x10; bbp97 += 0x10; bbp98  += 0x10;
1601         }
1602         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1603             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1604                 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1605         }
1606
1607         sc->bbp17 = bbp17;
1608         rum_bbp_write(sc,  17, bbp17);
1609         rum_bbp_write(sc,  96, bbp96);
1610         rum_bbp_write(sc, 104, bbp104);
1611
1612         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1613             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1614                 rum_bbp_write(sc, 75, 0x80);
1615                 rum_bbp_write(sc, 86, 0x80);
1616                 rum_bbp_write(sc, 88, 0x80);
1617         }
1618
1619         rum_bbp_write(sc, 35, bbp35);
1620         rum_bbp_write(sc, 97, bbp97);
1621         rum_bbp_write(sc, 98, bbp98);
1622
1623         tmp = rum_read(sc, RT2573_PHY_CSR0);
1624         tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1625         if (IEEE80211_IS_CHAN_2GHZ(c))
1626                 tmp |= RT2573_PA_PE_2GHZ;
1627         else
1628                 tmp |= RT2573_PA_PE_5GHZ;
1629         rum_write(sc, RT2573_PHY_CSR0, tmp);
1630 }
1631
1632 static void
1633 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1634 {
1635         struct ifnet *ifp = sc->sc_ifp;
1636         struct ieee80211com *ic = ifp->if_l2com;
1637         const struct rfprog *rfprog;
1638         uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1639         int8_t power;
1640         int i, chan;
1641
1642         chan = ieee80211_chan2ieee(ic, c);
1643         if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1644                 return;
1645
1646         /* select the appropriate RF settings based on what EEPROM says */
1647         rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1648                   sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1649
1650         /* find the settings for this channel (we know it exists) */
1651         for (i = 0; rfprog[i].chan != chan; i++);
1652
1653         power = sc->txpow[i];
1654         if (power < 0) {
1655                 bbp94 += power;
1656                 power = 0;
1657         } else if (power > 31) {
1658                 bbp94 += power - 31;
1659                 power = 31;
1660         }
1661
1662         /*
1663          * If we are switching from the 2GHz band to the 5GHz band or
1664          * vice-versa, BBP registers need to be reprogrammed.
1665          */
1666         if (c->ic_flags != ic->ic_curchan->ic_flags) {
1667                 rum_select_band(sc, c);
1668                 rum_select_antenna(sc);
1669         }
1670         ic->ic_curchan = c;
1671
1672         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1673         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1674         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1675         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1676
1677         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1678         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1679         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1680         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1681
1682         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1683         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1684         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1685         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1686
1687         rum_pause(sc, hz / 100);
1688
1689         /* enable smart mode for MIMO-capable RFs */
1690         bbp3 = rum_bbp_read(sc, 3);
1691
1692         bbp3 &= ~RT2573_SMART_MODE;
1693         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1694                 bbp3 |= RT2573_SMART_MODE;
1695
1696         rum_bbp_write(sc, 3, bbp3);
1697
1698         if (bbp94 != RT2573_BBPR94_DEFAULT)
1699                 rum_bbp_write(sc, 94, bbp94);
1700
1701         /* give the chip some extra time to do the switchover */
1702         rum_pause(sc, hz / 100);
1703 }
1704
1705 /*
1706  * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1707  * and HostAP operating modes.
1708  */
1709 static void
1710 rum_enable_tsf_sync(struct rum_softc *sc)
1711 {
1712         struct ifnet *ifp = sc->sc_ifp;
1713         struct ieee80211com *ic = ifp->if_l2com;
1714         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1715         uint32_t tmp;
1716
1717         if (vap->iv_opmode != IEEE80211_M_STA) {
1718                 /*
1719                  * Change default 16ms TBTT adjustment to 8ms.
1720                  * Must be done before enabling beacon generation.
1721                  */
1722                 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1723         }
1724
1725         tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1726
1727         /* set beacon interval (in 1/16ms unit) */
1728         tmp |= vap->iv_bss->ni_intval * 16;
1729
1730         tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1731         if (vap->iv_opmode == IEEE80211_M_STA)
1732                 tmp |= RT2573_TSF_MODE(1);
1733         else
1734                 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1735
1736         rum_write(sc, RT2573_TXRX_CSR9, tmp);
1737 }
1738
1739 static void
1740 rum_enable_tsf(struct rum_softc *sc)
1741 {
1742         rum_write(sc, RT2573_TXRX_CSR9,
1743             (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) |
1744             RT2573_TSF_TICKING | RT2573_TSF_MODE(2));
1745 }
1746
1747 static void
1748 rum_update_slot(struct ifnet *ifp)
1749 {
1750         struct rum_softc *sc = ifp->if_softc;
1751         struct ieee80211com *ic = ifp->if_l2com;
1752         uint8_t slottime;
1753         uint32_t tmp;
1754
1755         slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1756
1757         tmp = rum_read(sc, RT2573_MAC_CSR9);
1758         tmp = (tmp & ~0xff) | slottime;
1759         rum_write(sc, RT2573_MAC_CSR9, tmp);
1760
1761         DPRINTF("setting slot time to %uus\n", slottime);
1762 }
1763
1764 static void
1765 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1766 {
1767         uint32_t tmp;
1768
1769         tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1770         rum_write(sc, RT2573_MAC_CSR4, tmp);
1771
1772         tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1773         rum_write(sc, RT2573_MAC_CSR5, tmp);
1774 }
1775
1776 static void
1777 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1778 {
1779         uint32_t tmp;
1780
1781         tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1782         rum_write(sc, RT2573_MAC_CSR2, tmp);
1783
1784         tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1785         rum_write(sc, RT2573_MAC_CSR3, tmp);
1786 }
1787
1788 static void
1789 rum_setpromisc(struct rum_softc *sc)
1790 {
1791         struct ifnet *ifp = sc->sc_ifp;
1792         uint32_t tmp;
1793
1794         tmp = rum_read(sc, RT2573_TXRX_CSR0);
1795
1796         tmp &= ~RT2573_DROP_NOT_TO_ME;
1797         if (!(ifp->if_flags & IFF_PROMISC))
1798                 tmp |= RT2573_DROP_NOT_TO_ME;
1799
1800         rum_write(sc, RT2573_TXRX_CSR0, tmp);
1801
1802         DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1803             "entering" : "leaving");
1804 }
1805
1806 static void
1807 rum_update_promisc(struct ifnet *ifp)
1808 {
1809         struct rum_softc *sc = ifp->if_softc;
1810
1811         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1812                 return;
1813
1814         RUM_LOCK(sc);
1815         rum_setpromisc(sc);
1816         RUM_UNLOCK(sc);
1817 }
1818
1819 static const char *
1820 rum_get_rf(int rev)
1821 {
1822         switch (rev) {
1823         case RT2573_RF_2527:    return "RT2527 (MIMO XR)";
1824         case RT2573_RF_2528:    return "RT2528";
1825         case RT2573_RF_5225:    return "RT5225 (MIMO XR)";
1826         case RT2573_RF_5226:    return "RT5226";
1827         default:                return "unknown";
1828         }
1829 }
1830
1831 static void
1832 rum_read_eeprom(struct rum_softc *sc)
1833 {
1834         uint16_t val;
1835 #ifdef RUM_DEBUG
1836         int i;
1837 #endif
1838
1839         /* read MAC address */
1840         rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6);
1841
1842         rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1843         val = le16toh(val);
1844         sc->rf_rev =   (val >> 11) & 0x1f;
1845         sc->hw_radio = (val >> 10) & 0x1;
1846         sc->rx_ant =   (val >> 4)  & 0x3;
1847         sc->tx_ant =   (val >> 2)  & 0x3;
1848         sc->nb_ant =   val & 0x3;
1849
1850         DPRINTF("RF revision=%d\n", sc->rf_rev);
1851
1852         rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1853         val = le16toh(val);
1854         sc->ext_5ghz_lna = (val >> 6) & 0x1;
1855         sc->ext_2ghz_lna = (val >> 4) & 0x1;
1856
1857         DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1858             sc->ext_2ghz_lna, sc->ext_5ghz_lna);
1859
1860         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1861         val = le16toh(val);
1862         if ((val & 0xff) != 0xff)
1863                 sc->rssi_2ghz_corr = (int8_t)(val & 0xff);      /* signed */
1864
1865         /* Only [-10, 10] is valid */
1866         if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1867                 sc->rssi_2ghz_corr = 0;
1868
1869         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1870         val = le16toh(val);
1871         if ((val & 0xff) != 0xff)
1872                 sc->rssi_5ghz_corr = (int8_t)(val & 0xff);      /* signed */
1873
1874         /* Only [-10, 10] is valid */
1875         if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1876                 sc->rssi_5ghz_corr = 0;
1877
1878         if (sc->ext_2ghz_lna)
1879                 sc->rssi_2ghz_corr -= 14;
1880         if (sc->ext_5ghz_lna)
1881                 sc->rssi_5ghz_corr -= 14;
1882
1883         DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1884             sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
1885
1886         rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1887         val = le16toh(val);
1888         if ((val & 0xff) != 0xff)
1889                 sc->rffreq = val & 0xff;
1890
1891         DPRINTF("RF freq=%d\n", sc->rffreq);
1892
1893         /* read Tx power for all a/b/g channels */
1894         rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1895         /* XXX default Tx power for 802.11a channels */
1896         memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1897 #ifdef RUM_DEBUG
1898         for (i = 0; i < 14; i++)
1899                 DPRINTF("Channel=%d Tx power=%d\n", i + 1,  sc->txpow[i]);
1900 #endif
1901
1902         /* read default values for BBP registers */
1903         rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1904 #ifdef RUM_DEBUG
1905         for (i = 0; i < 14; i++) {
1906                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1907                         continue;
1908                 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1909                     sc->bbp_prom[i].val);
1910         }
1911 #endif
1912 }
1913
1914 static int
1915 rum_bbp_init(struct rum_softc *sc)
1916 {
1917 #define N(a)    (sizeof (a) / sizeof ((a)[0]))
1918         int i, ntries;
1919
1920         /* wait for BBP to be ready */
1921         for (ntries = 0; ntries < 100; ntries++) {
1922                 const uint8_t val = rum_bbp_read(sc, 0);
1923                 if (val != 0 && val != 0xff)
1924                         break;
1925                 if (rum_pause(sc, hz / 100))
1926                         break;
1927         }
1928         if (ntries == 100) {
1929                 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
1930                 return EIO;
1931         }
1932
1933         /* initialize BBP registers to default values */
1934         for (i = 0; i < N(rum_def_bbp); i++)
1935                 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1936
1937         /* write vendor-specific BBP values (from EEPROM) */
1938         for (i = 0; i < 16; i++) {
1939                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1940                         continue;
1941                 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1942         }
1943
1944         return 0;
1945 #undef N
1946 }
1947
1948 static void
1949 rum_init_locked(struct rum_softc *sc)
1950 {
1951 #define N(a)    (sizeof (a) / sizeof ((a)[0]))
1952         struct ifnet *ifp = sc->sc_ifp;
1953         struct ieee80211com *ic = ifp->if_l2com;
1954         uint32_t tmp;
1955         usb_error_t error;
1956         int i, ntries;
1957
1958         RUM_LOCK_ASSERT(sc, MA_OWNED);
1959
1960         rum_stop(sc);
1961
1962         /* initialize MAC registers to default values */
1963         for (i = 0; i < N(rum_def_mac); i++)
1964                 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
1965
1966         /* set host ready */
1967         rum_write(sc, RT2573_MAC_CSR1, 3);
1968         rum_write(sc, RT2573_MAC_CSR1, 0);
1969
1970         /* wait for BBP/RF to wakeup */
1971         for (ntries = 0; ntries < 100; ntries++) {
1972                 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
1973                         break;
1974                 rum_write(sc, RT2573_MAC_CSR12, 4);     /* force wakeup */
1975                 if (rum_pause(sc, hz / 100))
1976                         break;
1977         }
1978         if (ntries == 100) {
1979                 device_printf(sc->sc_dev,
1980                     "timeout waiting for BBP/RF to wakeup\n");
1981                 goto fail;
1982         }
1983
1984         if ((error = rum_bbp_init(sc)) != 0)
1985                 goto fail;
1986
1987         /* select default channel */
1988         rum_select_band(sc, ic->ic_curchan);
1989         rum_select_antenna(sc);
1990         rum_set_chan(sc, ic->ic_curchan);
1991
1992         /* clear STA registers */
1993         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
1994
1995         rum_set_macaddr(sc, IF_LLADDR(ifp));
1996
1997         /* initialize ASIC */
1998         rum_write(sc, RT2573_MAC_CSR1, 4);
1999
2000         /*
2001          * Allocate Tx and Rx xfer queues.
2002          */
2003         rum_setup_tx_list(sc);
2004
2005         /* update Rx filter */
2006         tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2007
2008         tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2009         if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2010                 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2011                        RT2573_DROP_ACKCTS;
2012                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2013                         tmp |= RT2573_DROP_TODS;
2014                 if (!(ifp->if_flags & IFF_PROMISC))
2015                         tmp |= RT2573_DROP_NOT_TO_ME;
2016         }
2017         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2018
2019         ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2020         ifp->if_drv_flags |= IFF_DRV_RUNNING;
2021         usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2022         usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2023         return;
2024
2025 fail:   rum_stop(sc);
2026 #undef N
2027 }
2028
2029 static void
2030 rum_init(void *priv)
2031 {
2032         struct rum_softc *sc = priv;
2033         struct ifnet *ifp = sc->sc_ifp;
2034         struct ieee80211com *ic = ifp->if_l2com;
2035
2036         RUM_LOCK(sc);
2037         rum_init_locked(sc);
2038         RUM_UNLOCK(sc);
2039
2040         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2041                 ieee80211_start_all(ic);                /* start all vap's */
2042 }
2043
2044 static void
2045 rum_stop(struct rum_softc *sc)
2046 {
2047         struct ifnet *ifp = sc->sc_ifp;
2048         uint32_t tmp;
2049
2050         RUM_LOCK_ASSERT(sc, MA_OWNED);
2051
2052         ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2053
2054         RUM_UNLOCK(sc);
2055
2056         /*
2057          * Drain the USB transfers, if not already drained:
2058          */
2059         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2060         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2061
2062         RUM_LOCK(sc);
2063
2064         rum_unsetup_tx_list(sc);
2065
2066         /* disable Rx */
2067         tmp = rum_read(sc, RT2573_TXRX_CSR0);
2068         rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2069
2070         /* reset ASIC */
2071         rum_write(sc, RT2573_MAC_CSR1, 3);
2072         rum_write(sc, RT2573_MAC_CSR1, 0);
2073 }
2074
2075 static void
2076 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2077 {
2078         struct usb_device_request req;
2079         uint16_t reg = RT2573_MCU_CODE_BASE;
2080         usb_error_t err;
2081
2082         /* copy firmware image into NIC */
2083         for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2084                 err = rum_write(sc, reg, UGETDW(ucode));
2085                 if (err) {
2086                         /* firmware already loaded ? */
2087                         device_printf(sc->sc_dev, "Firmware load "
2088                             "failure! (ignored)\n");
2089                         break;
2090                 }
2091         }
2092
2093         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2094         req.bRequest = RT2573_MCU_CNTL;
2095         USETW(req.wValue, RT2573_MCU_RUN);
2096         USETW(req.wIndex, 0);
2097         USETW(req.wLength, 0);
2098
2099         err = rum_do_request(sc, &req, NULL);
2100         if (err != 0) {
2101                 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2102                     usbd_errstr(err));
2103         }
2104
2105         /* give the chip some time to boot */
2106         rum_pause(sc, hz / 8);
2107 }
2108
2109 static int
2110 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2111 {
2112         struct ieee80211com *ic = vap->iv_ic;
2113         const struct ieee80211_txparam *tp;
2114         struct rum_tx_desc desc;
2115         struct mbuf *m0;
2116
2117         m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo);
2118         if (m0 == NULL) {
2119                 return ENOBUFS;
2120         }
2121
2122         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2123         rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2124             m0->m_pkthdr.len, tp->mgmtrate);
2125
2126         /* copy the first 24 bytes of Tx descriptor into NIC memory */
2127         rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2128
2129         /* copy beacon header and payload into NIC memory */
2130         rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2131             m0->m_pkthdr.len);
2132
2133         m_freem(m0);
2134
2135         return 0;
2136 }
2137
2138 static int
2139 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2140     const struct ieee80211_bpf_params *params)
2141 {
2142         struct ifnet *ifp = ni->ni_ic->ic_ifp;
2143         struct rum_softc *sc = ifp->if_softc;
2144
2145         RUM_LOCK(sc);
2146         /* prevent management frames from being sent if we're not ready */
2147         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2148                 RUM_UNLOCK(sc);
2149                 m_freem(m);
2150                 ieee80211_free_node(ni);
2151                 return ENETDOWN;
2152         }
2153         if (sc->tx_nfree < RUM_TX_MINFREE) {
2154                 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2155                 RUM_UNLOCK(sc);
2156                 m_freem(m);
2157                 ieee80211_free_node(ni);
2158                 return EIO;
2159         }
2160
2161         ifp->if_opackets++;
2162
2163         if (params == NULL) {
2164                 /*
2165                  * Legacy path; interpret frame contents to decide
2166                  * precisely how to send the frame.
2167                  */
2168                 if (rum_tx_mgt(sc, m, ni) != 0)
2169                         goto bad;
2170         } else {
2171                 /*
2172                  * Caller supplied explicit parameters to use in
2173                  * sending the frame.
2174                  */
2175                 if (rum_tx_raw(sc, m, ni, params) != 0)
2176                         goto bad;
2177         }
2178         RUM_UNLOCK(sc);
2179
2180         return 0;
2181 bad:
2182         ifp->if_oerrors++;
2183         RUM_UNLOCK(sc);
2184         ieee80211_free_node(ni);
2185         return EIO;
2186 }
2187
2188 static void
2189 rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni)
2190 {
2191         struct ieee80211vap *vap = ni->ni_vap;
2192         struct rum_vap *rvp = RUM_VAP(vap);
2193
2194         /* clear statistic registers (STA_CSR0 to STA_CSR5) */
2195         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2196
2197         ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni);
2198
2199         usb_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp);
2200 }
2201
2202 static void
2203 rum_amrr_timeout(void *arg)
2204 {
2205         struct rum_vap *rvp = arg;
2206         struct ieee80211vap *vap = &rvp->vap;
2207         struct ieee80211com *ic = vap->iv_ic;
2208
2209         ieee80211_runtask(ic, &rvp->amrr_task);
2210 }
2211
2212 static void
2213 rum_amrr_task(void *arg, int pending)
2214 {
2215         struct rum_vap *rvp = arg;
2216         struct ieee80211vap *vap = &rvp->vap;
2217         struct ieee80211com *ic = vap->iv_ic;
2218         struct ifnet *ifp = ic->ic_ifp;
2219         struct rum_softc *sc = ifp->if_softc;
2220         struct ieee80211_node *ni = vap->iv_bss;
2221         int ok, fail;
2222
2223         RUM_LOCK(sc);
2224         /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
2225         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
2226
2227         ok = (le32toh(sc->sta[4]) >> 16) +      /* TX ok w/o retry */
2228             (le32toh(sc->sta[5]) & 0xffff);     /* TX ok w/ retry */
2229         fail = (le32toh(sc->sta[5]) >> 16);     /* TX retry-fail count */
2230
2231         ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn,
2232             ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail);
2233         (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn);
2234
2235         ifp->if_oerrors += fail;        /* count TX retry-fail as Tx errors */
2236
2237         usb_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp);
2238         RUM_UNLOCK(sc);
2239 }
2240
2241 /* ARGUSED */
2242 static struct ieee80211_node *
2243 rum_node_alloc(struct ieee80211vap *vap __unused,
2244         const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
2245 {
2246         struct rum_node *rn;
2247
2248         rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO);
2249         return rn != NULL ? &rn->ni : NULL;
2250 }
2251
2252 static void
2253 rum_newassoc(struct ieee80211_node *ni, int isnew)
2254 {
2255         struct ieee80211vap *vap = ni->ni_vap;
2256
2257         ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni);
2258 }
2259
2260 static void
2261 rum_scan_start(struct ieee80211com *ic)
2262 {
2263         struct ifnet *ifp = ic->ic_ifp;
2264         struct rum_softc *sc = ifp->if_softc;
2265         uint32_t tmp;
2266
2267         RUM_LOCK(sc);
2268         /* abort TSF synchronization */
2269         tmp = rum_read(sc, RT2573_TXRX_CSR9);
2270         rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
2271         rum_set_bssid(sc, ifp->if_broadcastaddr);
2272         RUM_UNLOCK(sc);
2273
2274 }
2275
2276 static void
2277 rum_scan_end(struct ieee80211com *ic)
2278 {
2279         struct rum_softc *sc = ic->ic_ifp->if_softc;
2280
2281         RUM_LOCK(sc);
2282         rum_enable_tsf_sync(sc);
2283         rum_set_bssid(sc, sc->sc_bssid);
2284         RUM_UNLOCK(sc);
2285
2286 }
2287
2288 static void
2289 rum_set_channel(struct ieee80211com *ic)
2290 {
2291         struct rum_softc *sc = ic->ic_ifp->if_softc;
2292
2293         RUM_LOCK(sc);
2294         rum_set_chan(sc, ic->ic_curchan);
2295         RUM_UNLOCK(sc);
2296 }
2297
2298 static int
2299 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2300 {
2301         struct ifnet *ifp = sc->sc_ifp;
2302         struct ieee80211com *ic = ifp->if_l2com;
2303         int lna, agc, rssi;
2304
2305         lna = (raw >> 5) & 0x3;
2306         agc = raw & 0x1f;
2307
2308         if (lna == 0) {
2309                 /*
2310                  * No RSSI mapping
2311                  *
2312                  * NB: Since RSSI is relative to noise floor, -1 is
2313                  *     adequate for caller to know error happened.
2314                  */
2315                 return -1;
2316         }
2317
2318         rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2319
2320         if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2321                 rssi += sc->rssi_2ghz_corr;
2322
2323                 if (lna == 1)
2324                         rssi -= 64;
2325                 else if (lna == 2)
2326                         rssi -= 74;
2327                 else if (lna == 3)
2328                         rssi -= 90;
2329         } else {
2330                 rssi += sc->rssi_5ghz_corr;
2331
2332                 if (!sc->ext_5ghz_lna && lna != 1)
2333                         rssi += 4;
2334
2335                 if (lna == 1)
2336                         rssi -= 64;
2337                 else if (lna == 2)
2338                         rssi -= 86;
2339                 else if (lna == 3)
2340                         rssi -= 100;
2341         }
2342         return rssi;
2343 }
2344
2345 static int
2346 rum_pause(struct rum_softc *sc, int timeout)
2347 {
2348
2349         usb_pause_mtx(&sc->sc_mtx, timeout);
2350         return (0);
2351 }
2352
2353 static device_method_t rum_methods[] = {
2354         /* Device interface */
2355         DEVMETHOD(device_probe,         rum_match),
2356         DEVMETHOD(device_attach,        rum_attach),
2357         DEVMETHOD(device_detach,        rum_detach),
2358
2359         { 0, 0 }
2360 };
2361
2362 static driver_t rum_driver = {
2363         .name = "rum",
2364         .methods = rum_methods,
2365         .size = sizeof(struct rum_softc),
2366 };
2367
2368 static devclass_t rum_devclass;
2369
2370 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);