if_rum.c revision 191746
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 191746 2009-05-02 15:14:18Z thompsa $ */ 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: head/sys/dev/usb/wlan/if_rum.c 191746 2009-05-02 15:14:18Z thompsa $"); 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#define USB_DEBUG_VAR rum_debug 70 71#include <dev/usb/usb.h> 72#include <dev/usb/usb_error.h> 73#include <dev/usb/usb_core.h> 74#include <dev/usb/usb_lookup.h> 75#include <dev/usb/usb_debug.h> 76#include <dev/usb/usb_request.h> 77#include <dev/usb/usb_busdma.h> 78#include <dev/usb/usb_util.h> 79#include "usbdevs.h" 80 81#include <dev/usb/wlan/if_rumreg.h> 82#include <dev/usb/wlan/if_rumvar.h> 83#include <dev/usb/wlan/if_rumfw.h> 84 85#if USB_DEBUG 86static int rum_debug = 0; 87 88SYSCTL_NODE(_hw_usb2, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 89SYSCTL_INT(_hw_usb2_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 90 "Debug level"); 91#endif 92 93static const struct usb2_device_id rum_devs[] = { 94 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) }, 95 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) }, 96 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3) }, 97 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4) }, 98 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700) }, 99 { USB_VP(USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO) }, 100 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1) }, 101 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2) }, 102 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A) }, 103 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3) }, 104 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC) }, 105 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR) }, 106 { USB_VP(USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2) }, 107 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL) }, 108 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX) }, 109 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F) }, 110 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573) }, 111 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1) }, 112 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340) }, 113 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111) }, 114 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110) }, 115 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS) }, 116 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS) }, 117 { USB_VP(USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573) }, 118 { USB_VP(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573) }, 119 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB) }, 120 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) }, 121 { USB_VP(USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G) }, 122 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP) }, 123 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP) }, 124 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1) }, 125 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2) }, 126 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3) }, 127 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4) }, 128 { USB_VP(USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573) }, 129 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP) }, 130 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2) }, 131 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM) }, 132 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573) }, 133 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2) }, 134 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_3) }, 135 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573) }, 136 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2) }, 137 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671) }, 138 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2) }, 139 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172) }, 140 { USB_VP(USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573) }, 141 { USB_VP(USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573) }, 142}; 143 144MODULE_DEPEND(rum, wlan, 1, 1, 1); 145MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 146MODULE_DEPEND(rum, usb, 1, 1, 1); 147 148static device_probe_t rum_match; 149static device_attach_t rum_attach; 150static device_detach_t rum_detach; 151 152static usb2_callback_t rum_bulk_read_callback; 153static usb2_callback_t rum_bulk_write_callback; 154 155static usb2_error_t rum_do_request(struct rum_softc *sc, 156 struct usb2_device_request *req, void *data); 157static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 158 const char name[IFNAMSIZ], int unit, int opmode, 159 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 160 const uint8_t mac[IEEE80211_ADDR_LEN]); 161static void rum_vap_delete(struct ieee80211vap *); 162static void rum_tx_free(struct rum_tx_data *, int); 163static void rum_setup_tx_list(struct rum_softc *); 164static void rum_unsetup_tx_list(struct rum_softc *); 165static int rum_newstate(struct ieee80211vap *, 166 enum ieee80211_state, int); 167static void rum_setup_tx_desc(struct rum_softc *, 168 struct rum_tx_desc *, uint32_t, uint16_t, int, 169 int); 170static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 171 struct ieee80211_node *); 172static int rum_tx_raw(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *, 174 const struct ieee80211_bpf_params *); 175static int rum_tx_data(struct rum_softc *, struct mbuf *, 176 struct ieee80211_node *); 177static void rum_start(struct ifnet *); 178static int rum_ioctl(struct ifnet *, u_long, caddr_t); 179static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 180 int); 181static uint32_t rum_read(struct rum_softc *, uint16_t); 182static void rum_read_multi(struct rum_softc *, uint16_t, void *, 183 int); 184static usb2_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 185static usb2_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 186 size_t); 187static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 188static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 189static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 190static void rum_select_antenna(struct rum_softc *); 191static void rum_enable_mrr(struct rum_softc *); 192static void rum_set_txpreamble(struct rum_softc *); 193static void rum_set_basicrates(struct rum_softc *); 194static void rum_select_band(struct rum_softc *, 195 struct ieee80211_channel *); 196static void rum_set_chan(struct rum_softc *, 197 struct ieee80211_channel *); 198static void rum_enable_tsf_sync(struct rum_softc *); 199static void rum_update_slot(struct ifnet *); 200static void rum_set_bssid(struct rum_softc *, const uint8_t *); 201static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 202static void rum_update_promisc(struct ifnet *); 203static void rum_setpromisc(struct rum_softc *); 204static const char *rum_get_rf(int); 205static void rum_read_eeprom(struct rum_softc *); 206static int rum_bbp_init(struct rum_softc *); 207static void rum_init_locked(struct rum_softc *); 208static void rum_init(void *); 209static void rum_stop(struct rum_softc *); 210static void rum_load_microcode(struct rum_softc *, const uint8_t *, 211 size_t); 212static int rum_prepare_beacon(struct rum_softc *, 213 struct ieee80211vap *); 214static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 215 const struct ieee80211_bpf_params *); 216static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 217 const uint8_t mac[IEEE80211_ADDR_LEN]); 218static void rum_newassoc(struct ieee80211_node *, int); 219static void rum_scan_start(struct ieee80211com *); 220static void rum_scan_end(struct ieee80211com *); 221static void rum_set_channel(struct ieee80211com *); 222static int rum_get_rssi(struct rum_softc *, uint8_t); 223static void rum_amrr_start(struct rum_softc *, 224 struct ieee80211_node *); 225static void rum_amrr_timeout(void *); 226static void rum_amrr_task(void *, int); 227static int rum_pause(struct rum_softc *, int); 228 229static const struct { 230 uint32_t reg; 231 uint32_t val; 232} rum_def_mac[] = { 233 { RT2573_TXRX_CSR0, 0x025fb032 }, 234 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 235 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 236 { RT2573_TXRX_CSR3, 0x00858687 }, 237 { RT2573_TXRX_CSR7, 0x2e31353b }, 238 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 239 { RT2573_TXRX_CSR15, 0x0000000f }, 240 { RT2573_MAC_CSR6, 0x00000fff }, 241 { RT2573_MAC_CSR8, 0x016c030a }, 242 { RT2573_MAC_CSR10, 0x00000718 }, 243 { RT2573_MAC_CSR12, 0x00000004 }, 244 { RT2573_MAC_CSR13, 0x00007f00 }, 245 { RT2573_SEC_CSR0, 0x00000000 }, 246 { RT2573_SEC_CSR1, 0x00000000 }, 247 { RT2573_SEC_CSR5, 0x00000000 }, 248 { RT2573_PHY_CSR1, 0x000023b0 }, 249 { RT2573_PHY_CSR5, 0x00040a06 }, 250 { RT2573_PHY_CSR6, 0x00080606 }, 251 { RT2573_PHY_CSR7, 0x00000408 }, 252 { RT2573_AIFSN_CSR, 0x00002273 }, 253 { RT2573_CWMIN_CSR, 0x00002344 }, 254 { RT2573_CWMAX_CSR, 0x000034aa } 255}; 256 257static const struct { 258 uint8_t reg; 259 uint8_t val; 260} rum_def_bbp[] = { 261 { 3, 0x80 }, 262 { 15, 0x30 }, 263 { 17, 0x20 }, 264 { 21, 0xc8 }, 265 { 22, 0x38 }, 266 { 23, 0x06 }, 267 { 24, 0xfe }, 268 { 25, 0x0a }, 269 { 26, 0x0d }, 270 { 32, 0x0b }, 271 { 34, 0x12 }, 272 { 37, 0x07 }, 273 { 39, 0xf8 }, 274 { 41, 0x60 }, 275 { 53, 0x10 }, 276 { 54, 0x18 }, 277 { 60, 0x10 }, 278 { 61, 0x04 }, 279 { 62, 0x04 }, 280 { 75, 0xfe }, 281 { 86, 0xfe }, 282 { 88, 0xfe }, 283 { 90, 0x0f }, 284 { 99, 0x00 }, 285 { 102, 0x16 }, 286 { 107, 0x04 } 287}; 288 289static const struct rfprog { 290 uint8_t chan; 291 uint32_t r1, r2, r3, r4; 292} rum_rf5226[] = { 293 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 294 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 295 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 296 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 297 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 298 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 299 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 300 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 301 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 302 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 303 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 304 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 305 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 306 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 307 308 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 309 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 310 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 311 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 312 313 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 314 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 315 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 316 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 317 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 318 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 319 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 320 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 321 322 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 323 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 324 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 325 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 326 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 327 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 328 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 329 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 330 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 331 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 332 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 333 334 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 335 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 336 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 337 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 338 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 339}, rum_rf5225[] = { 340 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 341 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 342 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 343 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 344 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 345 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 346 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 347 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 348 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 349 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 350 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 351 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 352 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 353 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 354 355 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 356 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 357 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 358 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 359 360 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 361 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 362 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 363 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 364 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 365 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 366 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 367 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 368 369 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 370 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 371 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 372 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 373 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 374 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 375 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 376 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 377 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 378 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 379 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 380 381 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 382 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 383 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 384 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 385 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 386}; 387 388static const struct usb2_config rum_config[RUM_N_TRANSFER] = { 389 [RUM_BULK_WR] = { 390 .type = UE_BULK, 391 .endpoint = UE_ADDR_ANY, 392 .direction = UE_DIR_OUT, 393 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 394 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 395 .callback = rum_bulk_write_callback, 396 .timeout = 5000, /* ms */ 397 }, 398 [RUM_BULK_RD] = { 399 .type = UE_BULK, 400 .endpoint = UE_ADDR_ANY, 401 .direction = UE_DIR_IN, 402 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 403 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 404 .callback = rum_bulk_read_callback, 405 }, 406}; 407 408static int 409rum_match(device_t self) 410{ 411 struct usb2_attach_arg *uaa = device_get_ivars(self); 412 413 if (uaa->usb2_mode != USB_MODE_HOST) 414 return (ENXIO); 415 if (uaa->info.bConfigIndex != 0) 416 return (ENXIO); 417 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 418 return (ENXIO); 419 420 return (usb2_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 421} 422 423static int 424rum_attach(device_t self) 425{ 426 struct usb2_attach_arg *uaa = device_get_ivars(self); 427 struct rum_softc *sc = device_get_softc(self); 428 struct ieee80211com *ic; 429 struct ifnet *ifp; 430 uint8_t iface_index, bands; 431 uint32_t tmp; 432 int error, ntries; 433 434 device_set_usb2_desc(self); 435 sc->sc_udev = uaa->device; 436 sc->sc_dev = self; 437 438 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 439 MTX_NETWORK_LOCK, MTX_DEF); 440 441 iface_index = RT2573_IFACE_INDEX; 442 error = usb2_transfer_setup(uaa->device, &iface_index, 443 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 444 if (error) { 445 device_printf(self, "could not allocate USB transfers, " 446 "err=%s\n", usb2_errstr(error)); 447 goto detach; 448 } 449 450 RUM_LOCK(sc); 451 /* retrieve RT2573 rev. no */ 452 for (ntries = 0; ntries < 100; ntries++) { 453 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 454 break; 455 if (rum_pause(sc, hz / 100)) 456 break; 457 } 458 if (ntries == 100) { 459 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 460 RUM_UNLOCK(sc); 461 goto detach; 462 } 463 464 /* retrieve MAC address and various other things from EEPROM */ 465 rum_read_eeprom(sc); 466 467 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 468 tmp, rum_get_rf(sc->rf_rev)); 469 470 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 471 RUM_UNLOCK(sc); 472 473 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 474 if (ifp == NULL) { 475 device_printf(sc->sc_dev, "can not if_alloc()\n"); 476 goto detach; 477 } 478 ic = ifp->if_l2com; 479 480 ifp->if_softc = sc; 481 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 482 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 483 ifp->if_init = rum_init; 484 ifp->if_ioctl = rum_ioctl; 485 ifp->if_start = rum_start; 486 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 487 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 488 IFQ_SET_READY(&ifp->if_snd); 489 490 ic->ic_ifp = ifp; 491 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 492 493 /* set device capabilities */ 494 ic->ic_caps = 495 IEEE80211_C_STA /* station mode supported */ 496 | IEEE80211_C_IBSS /* IBSS mode supported */ 497 | IEEE80211_C_MONITOR /* monitor mode supported */ 498 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 499 | IEEE80211_C_TXPMGT /* tx power management */ 500 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 501 | IEEE80211_C_SHSLOT /* short slot time supported */ 502 | IEEE80211_C_BGSCAN /* bg scanning supported */ 503 | IEEE80211_C_WPA /* 802.11i */ 504 ; 505 506 bands = 0; 507 setbit(&bands, IEEE80211_MODE_11B); 508 setbit(&bands, IEEE80211_MODE_11G); 509 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 510 setbit(&bands, IEEE80211_MODE_11A); 511 ieee80211_init_channels(ic, NULL, &bands); 512 513 ieee80211_ifattach(ic, sc->sc_bssid); 514 ic->ic_update_promisc = rum_update_promisc; 515 ic->ic_newassoc = rum_newassoc; 516 ic->ic_raw_xmit = rum_raw_xmit; 517 ic->ic_node_alloc = rum_node_alloc; 518 ic->ic_scan_start = rum_scan_start; 519 ic->ic_scan_end = rum_scan_end; 520 ic->ic_set_channel = rum_set_channel; 521 522 ic->ic_vap_create = rum_vap_create; 523 ic->ic_vap_delete = rum_vap_delete; 524 525 bpfattach(ifp, DLT_IEEE802_11_RADIO, 526 sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap)); 527 528 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 529 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 530 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 531 532 sc->sc_txtap_len = sizeof sc->sc_txtap; 533 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 534 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 535 536 if (bootverbose) 537 ieee80211_announce(ic); 538 539 return (0); 540 541detach: 542 rum_detach(self); 543 return (ENXIO); /* failure */ 544} 545 546static int 547rum_detach(device_t self) 548{ 549 struct rum_softc *sc = device_get_softc(self); 550 struct ifnet *ifp = sc->sc_ifp; 551 struct ieee80211com *ic; 552 553 /* stop all USB transfers */ 554 usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 555 556 /* free TX list, if any */ 557 RUM_LOCK(sc); 558 rum_unsetup_tx_list(sc); 559 RUM_UNLOCK(sc); 560 561 if (ifp) { 562 ic = ifp->if_l2com; 563 bpfdetach(ifp); 564 ieee80211_ifdetach(ic); 565 if_free(ifp); 566 } 567 mtx_destroy(&sc->sc_mtx); 568 569 return (0); 570} 571 572static usb2_error_t 573rum_do_request(struct rum_softc *sc, 574 struct usb2_device_request *req, void *data) 575{ 576 usb2_error_t err; 577 int ntries = 10; 578 579 while (ntries--) { 580 err = usb2_do_request_flags(sc->sc_udev, &sc->sc_mtx, 581 req, data, 0, NULL, 250 /* ms */); 582 if (err == 0) 583 break; 584 585 DPRINTFN(1, "Control request failed, %s (retrying)\n", 586 usb2_errstr(err)); 587 if (rum_pause(sc, hz / 100)) 588 break; 589 } 590 return (err); 591} 592 593static struct ieee80211vap * 594rum_vap_create(struct ieee80211com *ic, 595 const char name[IFNAMSIZ], int unit, int opmode, int flags, 596 const uint8_t bssid[IEEE80211_ADDR_LEN], 597 const uint8_t mac[IEEE80211_ADDR_LEN]) 598{ 599 struct rum_softc *sc = ic->ic_ifp->if_softc; 600 struct rum_vap *rvp; 601 struct ieee80211vap *vap; 602 603 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 604 return NULL; 605 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 606 M_80211_VAP, M_NOWAIT | M_ZERO); 607 if (rvp == NULL) 608 return NULL; 609 vap = &rvp->vap; 610 /* enable s/w bmiss handling for sta mode */ 611 ieee80211_vap_setup(ic, vap, name, unit, opmode, 612 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 613 614 /* override state transition machine */ 615 rvp->newstate = vap->iv_newstate; 616 vap->iv_newstate = rum_newstate; 617 618 usb2_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 619 TASK_INIT(&rvp->amrr_task, 0, rum_amrr_task, rvp); 620 ieee80211_amrr_init(&rvp->amrr, vap, 621 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 622 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 623 1000 /* 1 sec */); 624 625 /* complete setup */ 626 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 627 ic->ic_opmode = opmode; 628 return vap; 629} 630 631static void 632rum_vap_delete(struct ieee80211vap *vap) 633{ 634 struct rum_vap *rvp = RUM_VAP(vap); 635 struct ieee80211com *ic = vap->iv_ic; 636 637 usb2_callout_drain(&rvp->amrr_ch); 638 ieee80211_draintask(ic, &rvp->amrr_task); 639 ieee80211_amrr_cleanup(&rvp->amrr); 640 ieee80211_vap_detach(vap); 641 free(rvp, M_80211_VAP); 642} 643 644static void 645rum_tx_free(struct rum_tx_data *data, int txerr) 646{ 647 struct rum_softc *sc = data->sc; 648 649 if (data->m != NULL) { 650 if (data->m->m_flags & M_TXCB) 651 ieee80211_process_callback(data->ni, data->m, 652 txerr ? ETIMEDOUT : 0); 653 m_freem(data->m); 654 data->m = NULL; 655 656 ieee80211_free_node(data->ni); 657 data->ni = NULL; 658 } 659 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 660 sc->tx_nfree++; 661} 662 663static void 664rum_setup_tx_list(struct rum_softc *sc) 665{ 666 struct rum_tx_data *data; 667 int i; 668 669 sc->tx_nfree = 0; 670 STAILQ_INIT(&sc->tx_q); 671 STAILQ_INIT(&sc->tx_free); 672 673 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 674 data = &sc->tx_data[i]; 675 676 data->sc = sc; 677 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 678 sc->tx_nfree++; 679 } 680} 681 682static void 683rum_unsetup_tx_list(struct rum_softc *sc) 684{ 685 struct rum_tx_data *data; 686 int i; 687 688 /* make sure any subsequent use of the queues will fail */ 689 sc->tx_nfree = 0; 690 STAILQ_INIT(&sc->tx_q); 691 STAILQ_INIT(&sc->tx_free); 692 693 /* free up all node references and mbufs */ 694 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 695 data = &sc->tx_data[i]; 696 697 if (data->m != NULL) { 698 m_freem(data->m); 699 data->m = NULL; 700 } 701 if (data->ni != NULL) { 702 ieee80211_free_node(data->ni); 703 data->ni = NULL; 704 } 705 } 706} 707 708static int 709rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 710{ 711 struct rum_vap *rvp = RUM_VAP(vap); 712 struct ieee80211com *ic = vap->iv_ic; 713 struct rum_softc *sc = ic->ic_ifp->if_softc; 714 const struct ieee80211_txparam *tp; 715 enum ieee80211_state ostate; 716 struct ieee80211_node *ni; 717 uint32_t tmp; 718 719 ostate = vap->iv_state; 720 DPRINTF("%s -> %s\n", 721 ieee80211_state_name[ostate], 722 ieee80211_state_name[nstate]); 723 724 IEEE80211_UNLOCK(ic); 725 RUM_LOCK(sc); 726 usb2_callout_stop(&rvp->amrr_ch); 727 728 switch (nstate) { 729 case IEEE80211_S_INIT: 730 if (ostate == IEEE80211_S_RUN) { 731 /* abort TSF synchronization */ 732 tmp = rum_read(sc, RT2573_TXRX_CSR9); 733 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 734 } 735 break; 736 737 case IEEE80211_S_RUN: 738 ni = vap->iv_bss; 739 740 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 741 rum_update_slot(ic->ic_ifp); 742 rum_enable_mrr(sc); 743 rum_set_txpreamble(sc); 744 rum_set_basicrates(sc); 745 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 746 rum_set_bssid(sc, sc->sc_bssid); 747 } 748 749 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 750 vap->iv_opmode == IEEE80211_M_IBSS) 751 rum_prepare_beacon(sc, vap); 752 753 if (vap->iv_opmode != IEEE80211_M_MONITOR) 754 rum_enable_tsf_sync(sc); 755 756 /* enable automatic rate adaptation */ 757 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 758 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 759 rum_amrr_start(sc, ni); 760 break; 761 default: 762 break; 763 } 764 RUM_UNLOCK(sc); 765 IEEE80211_LOCK(ic); 766 return (rvp->newstate(vap, nstate, arg)); 767} 768 769static void 770rum_bulk_write_callback(struct usb2_xfer *xfer) 771{ 772 struct rum_softc *sc = xfer->priv_sc; 773 struct ifnet *ifp = sc->sc_ifp; 774 struct ieee80211com *ic = ifp->if_l2com; 775 struct ieee80211_channel *c = ic->ic_curchan; 776 struct rum_tx_data *data; 777 struct mbuf *m; 778 unsigned int len; 779 780 switch (USB_GET_STATE(xfer)) { 781 case USB_ST_TRANSFERRED: 782 DPRINTFN(11, "transfer complete, %d bytes\n", xfer->actlen); 783 784 /* free resources */ 785 data = xfer->priv_fifo; 786 rum_tx_free(data, 0); 787 xfer->priv_fifo = NULL; 788 789 ifp->if_opackets++; 790 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 791 792 /* FALLTHROUGH */ 793 case USB_ST_SETUP: 794tr_setup: 795 data = STAILQ_FIRST(&sc->tx_q); 796 if (data) { 797 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 798 m = data->m; 799 800 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 801 DPRINTFN(0, "data overflow, %u bytes\n", 802 m->m_pkthdr.len); 803 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 804 } 805 usb2_copy_in(xfer->frbuffers, 0, &data->desc, 806 RT2573_TX_DESC_SIZE); 807 usb2_m_copy_in(xfer->frbuffers, RT2573_TX_DESC_SIZE, m, 808 0, m->m_pkthdr.len); 809 810 if (bpf_peers_present(ifp->if_bpf)) { 811 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 812 813 tap->wt_flags = 0; 814 tap->wt_rate = data->rate; 815 tap->wt_chan_freq = htole16(c->ic_freq); 816 tap->wt_chan_flags = htole16(c->ic_flags); 817 tap->wt_antenna = sc->tx_ant; 818 819 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m); 820 } 821 822 /* align end on a 4-bytes boundary */ 823 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 824 if ((len % 64) == 0) 825 len += 4; 826 827 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 828 m->m_pkthdr.len, len); 829 830 xfer->frlengths[0] = len; 831 xfer->priv_fifo = data; 832 833 usb2_start_hardware(xfer); 834 } 835 break; 836 837 default: /* Error */ 838 DPRINTFN(11, "transfer error, %s\n", 839 usb2_errstr(xfer->error)); 840 841 ifp->if_oerrors++; 842 data = xfer->priv_fifo; 843 if (data != NULL) { 844 rum_tx_free(data, xfer->error); 845 xfer->priv_fifo = NULL; 846 } 847 848 if (xfer->error == USB_ERR_STALLED) { 849 /* try to clear stall first */ 850 xfer->flags.stall_pipe = 1; 851 goto tr_setup; 852 } 853 if (xfer->error == USB_ERR_TIMEOUT) 854 device_printf(sc->sc_dev, "device timeout\n"); 855 break; 856 } 857} 858 859static void 860rum_bulk_read_callback(struct usb2_xfer *xfer) 861{ 862 struct rum_softc *sc = xfer->priv_sc; 863 struct ifnet *ifp = sc->sc_ifp; 864 struct ieee80211com *ic = ifp->if_l2com; 865 struct ieee80211_node *ni; 866 struct mbuf *m = NULL; 867 uint32_t flags; 868 uint8_t rssi = 0; 869 unsigned int len; 870 871 switch (USB_GET_STATE(xfer)) { 872 case USB_ST_TRANSFERRED: 873 874 DPRINTFN(15, "rx done, actlen=%d\n", xfer->actlen); 875 876 len = xfer->actlen; 877 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 878 DPRINTF("%s: xfer too short %d\n", 879 device_get_nameunit(sc->sc_dev), len); 880 ifp->if_ierrors++; 881 goto tr_setup; 882 } 883 884 len -= RT2573_RX_DESC_SIZE; 885 usb2_copy_out(xfer->frbuffers, 0, &sc->sc_rx_desc, 886 RT2573_RX_DESC_SIZE); 887 888 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 889 flags = le32toh(sc->sc_rx_desc.flags); 890 if (flags & RT2573_RX_CRC_ERROR) { 891 /* 892 * This should not happen since we did not 893 * request to receive those frames when we 894 * filled RUM_TXRX_CSR2: 895 */ 896 DPRINTFN(5, "PHY or CRC error\n"); 897 ifp->if_ierrors++; 898 goto tr_setup; 899 } 900 901 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 902 if (m == NULL) { 903 DPRINTF("could not allocate mbuf\n"); 904 ifp->if_ierrors++; 905 goto tr_setup; 906 } 907 usb2_copy_out(xfer->frbuffers, RT2573_RX_DESC_SIZE, 908 mtod(m, uint8_t *), len); 909 910 /* finalize mbuf */ 911 m->m_pkthdr.rcvif = ifp; 912 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 913 914 if (bpf_peers_present(ifp->if_bpf)) { 915 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 916 917 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 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_chan_freq = htole16(ic->ic_curchan->ic_freq); 922 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 923 tap->wr_antenna = sc->rx_ant; 924 tap->wr_antsignal = rssi; 925 926 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 927 } 928 /* FALLTHROUGH */ 929 case USB_ST_SETUP: 930tr_setup: 931 xfer->frlengths[0] = xfer->max_data_length; 932 usb2_start_hardware(xfer); 933 934 /* 935 * At the end of a USB callback it is always safe to unlock 936 * the private mutex of a device! That is why we do the 937 * "ieee80211_input" here, and not some lines up! 938 */ 939 if (m) { 940 RUM_UNLOCK(sc); 941 ni = ieee80211_find_rxnode(ic, 942 mtod(m, struct ieee80211_frame_min *)); 943 if (ni != NULL) { 944 (void) ieee80211_input(ni, m, rssi, 945 RT2573_NOISE_FLOOR, 0); 946 ieee80211_free_node(ni); 947 } else 948 (void) ieee80211_input_all(ic, m, rssi, 949 RT2573_NOISE_FLOOR, 0); 950 RUM_LOCK(sc); 951 } 952 return; 953 954 default: /* Error */ 955 if (xfer->error != USB_ERR_CANCELLED) { 956 /* try to clear stall first */ 957 xfer->flags.stall_pipe = 1; 958 goto tr_setup; 959 } 960 return; 961 } 962} 963 964static uint8_t 965rum_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 987static void 988rum_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 1031static int 1032rum_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 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1079 1080 return 0; 1081} 1082 1083static int 1084rum_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 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1139 1140 return (0); 1141} 1142 1143static int 1144rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1145 const struct ieee80211_bpf_params *params) 1146{ 1147 struct rum_tx_data *data; 1148 uint32_t flags; 1149 int rate, error; 1150 1151 RUM_LOCK_ASSERT(sc, MA_OWNED); 1152 KASSERT(params != NULL, ("no raw xmit params")); 1153 1154 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1155 /* XXX validate */ 1156 if (rate == 0) { 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 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1191 1192 return 0; 1193} 1194 1195static int 1196rum_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 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1273 1274 return 0; 1275} 1276 1277static void 1278rum_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 1308static int 1309rum_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 1346static void 1347rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1348{ 1349 struct usb2_device_request req; 1350 usb2_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 usb2_errstr(error)); 1362 } 1363} 1364 1365static uint32_t 1366rum_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 1375static void 1376rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1377{ 1378 struct usb2_device_request req; 1379 usb2_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 usb2_errstr(error)); 1392 } 1393} 1394 1395static usb2_error_t 1396rum_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 1403static usb2_error_t 1404rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1405{ 1406 struct usb2_device_request req; 1407 usb2_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 usb2_errstr(error)); 1420 } 1421 return (error); 1422} 1423 1424static void 1425rum_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 1447static uint8_t 1448rum_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 1481static void 1482rum_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 1508static void 1509rum_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 */ 1533static void 1534rum_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 1550static void 1551rum_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 1566static void 1567rum_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 */ 1589static void 1590rum_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 1632static void 1633rum_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 */ 1709static void 1710rum_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 1739static void 1740rum_update_slot(struct ifnet *ifp) 1741{ 1742 struct rum_softc *sc = ifp->if_softc; 1743 struct ieee80211com *ic = ifp->if_l2com; 1744 uint8_t slottime; 1745 uint32_t tmp; 1746 1747 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1748 1749 tmp = rum_read(sc, RT2573_MAC_CSR9); 1750 tmp = (tmp & ~0xff) | slottime; 1751 rum_write(sc, RT2573_MAC_CSR9, tmp); 1752 1753 DPRINTF("setting slot time to %uus\n", slottime); 1754} 1755 1756static void 1757rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1758{ 1759 uint32_t tmp; 1760 1761 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1762 rum_write(sc, RT2573_MAC_CSR4, tmp); 1763 1764 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1765 rum_write(sc, RT2573_MAC_CSR5, tmp); 1766} 1767 1768static void 1769rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1770{ 1771 uint32_t tmp; 1772 1773 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1774 rum_write(sc, RT2573_MAC_CSR2, tmp); 1775 1776 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1777 rum_write(sc, RT2573_MAC_CSR3, tmp); 1778} 1779 1780static void 1781rum_setpromisc(struct rum_softc *sc) 1782{ 1783 struct ifnet *ifp = sc->sc_ifp; 1784 uint32_t tmp; 1785 1786 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1787 1788 tmp &= ~RT2573_DROP_NOT_TO_ME; 1789 if (!(ifp->if_flags & IFF_PROMISC)) 1790 tmp |= RT2573_DROP_NOT_TO_ME; 1791 1792 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1793 1794 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1795 "entering" : "leaving"); 1796} 1797 1798static void 1799rum_update_promisc(struct ifnet *ifp) 1800{ 1801 struct rum_softc *sc = ifp->if_softc; 1802 1803 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1804 return; 1805 1806 RUM_LOCK(sc); 1807 rum_setpromisc(sc); 1808 RUM_UNLOCK(sc); 1809} 1810 1811static const char * 1812rum_get_rf(int rev) 1813{ 1814 switch (rev) { 1815 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1816 case RT2573_RF_2528: return "RT2528"; 1817 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1818 case RT2573_RF_5226: return "RT5226"; 1819 default: return "unknown"; 1820 } 1821} 1822 1823static void 1824rum_read_eeprom(struct rum_softc *sc) 1825{ 1826 uint16_t val; 1827#ifdef RUM_DEBUG 1828 int i; 1829#endif 1830 1831 /* read MAC address */ 1832 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1833 1834 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1835 val = le16toh(val); 1836 sc->rf_rev = (val >> 11) & 0x1f; 1837 sc->hw_radio = (val >> 10) & 0x1; 1838 sc->rx_ant = (val >> 4) & 0x3; 1839 sc->tx_ant = (val >> 2) & 0x3; 1840 sc->nb_ant = val & 0x3; 1841 1842 DPRINTF("RF revision=%d\n", sc->rf_rev); 1843 1844 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1845 val = le16toh(val); 1846 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1847 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1848 1849 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1850 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1851 1852 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1853 val = le16toh(val); 1854 if ((val & 0xff) != 0xff) 1855 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1856 1857 /* Only [-10, 10] is valid */ 1858 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1859 sc->rssi_2ghz_corr = 0; 1860 1861 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1862 val = le16toh(val); 1863 if ((val & 0xff) != 0xff) 1864 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1865 1866 /* Only [-10, 10] is valid */ 1867 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1868 sc->rssi_5ghz_corr = 0; 1869 1870 if (sc->ext_2ghz_lna) 1871 sc->rssi_2ghz_corr -= 14; 1872 if (sc->ext_5ghz_lna) 1873 sc->rssi_5ghz_corr -= 14; 1874 1875 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1876 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1877 1878 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1879 val = le16toh(val); 1880 if ((val & 0xff) != 0xff) 1881 sc->rffreq = val & 0xff; 1882 1883 DPRINTF("RF freq=%d\n", sc->rffreq); 1884 1885 /* read Tx power for all a/b/g channels */ 1886 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1887 /* XXX default Tx power for 802.11a channels */ 1888 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1889#ifdef RUM_DEBUG 1890 for (i = 0; i < 14; i++) 1891 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1892#endif 1893 1894 /* read default values for BBP registers */ 1895 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1896#ifdef RUM_DEBUG 1897 for (i = 0; i < 14; i++) { 1898 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1899 continue; 1900 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1901 sc->bbp_prom[i].val); 1902 } 1903#endif 1904} 1905 1906static int 1907rum_bbp_init(struct rum_softc *sc) 1908{ 1909#define N(a) (sizeof (a) / sizeof ((a)[0])) 1910 int i, ntries; 1911 1912 /* wait for BBP to be ready */ 1913 for (ntries = 0; ntries < 100; ntries++) { 1914 const uint8_t val = rum_bbp_read(sc, 0); 1915 if (val != 0 && val != 0xff) 1916 break; 1917 if (rum_pause(sc, hz / 100)) 1918 break; 1919 } 1920 if (ntries == 100) { 1921 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1922 return EIO; 1923 } 1924 1925 /* initialize BBP registers to default values */ 1926 for (i = 0; i < N(rum_def_bbp); i++) 1927 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1928 1929 /* write vendor-specific BBP values (from EEPROM) */ 1930 for (i = 0; i < 16; i++) { 1931 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1932 continue; 1933 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1934 } 1935 1936 return 0; 1937#undef N 1938} 1939 1940static void 1941rum_init_locked(struct rum_softc *sc) 1942{ 1943#define N(a) (sizeof (a) / sizeof ((a)[0])) 1944 struct ifnet *ifp = sc->sc_ifp; 1945 struct ieee80211com *ic = ifp->if_l2com; 1946 uint32_t tmp; 1947 usb2_error_t error; 1948 int i, ntries; 1949 1950 RUM_LOCK_ASSERT(sc, MA_OWNED); 1951 1952 rum_stop(sc); 1953 1954 /* initialize MAC registers to default values */ 1955 for (i = 0; i < N(rum_def_mac); i++) 1956 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1957 1958 /* set host ready */ 1959 rum_write(sc, RT2573_MAC_CSR1, 3); 1960 rum_write(sc, RT2573_MAC_CSR1, 0); 1961 1962 /* wait for BBP/RF to wakeup */ 1963 for (ntries = 0; ntries < 100; ntries++) { 1964 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1965 break; 1966 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1967 if (rum_pause(sc, hz / 100)) 1968 break; 1969 } 1970 if (ntries == 100) { 1971 device_printf(sc->sc_dev, 1972 "timeout waiting for BBP/RF to wakeup\n"); 1973 goto fail; 1974 } 1975 1976 if ((error = rum_bbp_init(sc)) != 0) 1977 goto fail; 1978 1979 /* select default channel */ 1980 rum_select_band(sc, ic->ic_curchan); 1981 rum_select_antenna(sc); 1982 rum_set_chan(sc, ic->ic_curchan); 1983 1984 /* clear STA registers */ 1985 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1986 1987 rum_set_macaddr(sc, IF_LLADDR(ifp)); 1988 1989 /* initialize ASIC */ 1990 rum_write(sc, RT2573_MAC_CSR1, 4); 1991 1992 /* 1993 * Allocate Tx and Rx xfer queues. 1994 */ 1995 rum_setup_tx_list(sc); 1996 1997 /* update Rx filter */ 1998 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 1999 2000 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2001 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2002 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2003 RT2573_DROP_ACKCTS; 2004 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2005 tmp |= RT2573_DROP_TODS; 2006 if (!(ifp->if_flags & IFF_PROMISC)) 2007 tmp |= RT2573_DROP_NOT_TO_ME; 2008 } 2009 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2010 2011 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2012 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2013 usb2_transfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2014 usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2015 return; 2016 2017fail: rum_stop(sc); 2018#undef N 2019} 2020 2021static void 2022rum_init(void *priv) 2023{ 2024 struct rum_softc *sc = priv; 2025 struct ifnet *ifp = sc->sc_ifp; 2026 struct ieee80211com *ic = ifp->if_l2com; 2027 2028 RUM_LOCK(sc); 2029 rum_init_locked(sc); 2030 RUM_UNLOCK(sc); 2031 2032 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2033 ieee80211_start_all(ic); /* start all vap's */ 2034} 2035 2036static void 2037rum_stop(struct rum_softc *sc) 2038{ 2039 struct ifnet *ifp = sc->sc_ifp; 2040 uint32_t tmp; 2041 2042 RUM_LOCK_ASSERT(sc, MA_OWNED); 2043 2044 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2045 2046 RUM_UNLOCK(sc); 2047 2048 /* 2049 * Drain the USB transfers, if not already drained: 2050 */ 2051 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2052 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2053 2054 RUM_LOCK(sc); 2055 2056 rum_unsetup_tx_list(sc); 2057 2058 /* disable Rx */ 2059 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2060 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2061 2062 /* reset ASIC */ 2063 rum_write(sc, RT2573_MAC_CSR1, 3); 2064 rum_write(sc, RT2573_MAC_CSR1, 0); 2065} 2066 2067static void 2068rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2069{ 2070 struct usb2_device_request req; 2071 uint16_t reg = RT2573_MCU_CODE_BASE; 2072 usb2_error_t err; 2073 2074 /* copy firmware image into NIC */ 2075 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2076 err = rum_write(sc, reg, UGETDW(ucode)); 2077 if (err) { 2078 /* firmware already loaded ? */ 2079 device_printf(sc->sc_dev, "Firmware load " 2080 "failure! (ignored)\n"); 2081 break; 2082 } 2083 } 2084 2085 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2086 req.bRequest = RT2573_MCU_CNTL; 2087 USETW(req.wValue, RT2573_MCU_RUN); 2088 USETW(req.wIndex, 0); 2089 USETW(req.wLength, 0); 2090 2091 err = rum_do_request(sc, &req, NULL); 2092 if (err != 0) { 2093 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2094 usb2_errstr(err)); 2095 } 2096 2097 /* give the chip some time to boot */ 2098 rum_pause(sc, hz / 8); 2099} 2100 2101static int 2102rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2103{ 2104 struct ieee80211com *ic = vap->iv_ic; 2105 const struct ieee80211_txparam *tp; 2106 struct rum_tx_desc desc; 2107 struct mbuf *m0; 2108 2109 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2110 if (m0 == NULL) { 2111 return ENOBUFS; 2112 } 2113 2114 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2115 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2116 m0->m_pkthdr.len, tp->mgmtrate); 2117 2118 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2119 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2120 2121 /* copy beacon header and payload into NIC memory */ 2122 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2123 m0->m_pkthdr.len); 2124 2125 m_freem(m0); 2126 2127 return 0; 2128} 2129 2130static int 2131rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2132 const struct ieee80211_bpf_params *params) 2133{ 2134 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2135 struct rum_softc *sc = ifp->if_softc; 2136 2137 RUM_LOCK(sc); 2138 /* prevent management frames from being sent if we're not ready */ 2139 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2140 RUM_UNLOCK(sc); 2141 m_freem(m); 2142 ieee80211_free_node(ni); 2143 return ENETDOWN; 2144 } 2145 if (sc->tx_nfree < RUM_TX_MINFREE) { 2146 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2147 RUM_UNLOCK(sc); 2148 m_freem(m); 2149 ieee80211_free_node(ni); 2150 return EIO; 2151 } 2152 2153 ifp->if_opackets++; 2154 2155 if (params == NULL) { 2156 /* 2157 * Legacy path; interpret frame contents to decide 2158 * precisely how to send the frame. 2159 */ 2160 if (rum_tx_mgt(sc, m, ni) != 0) 2161 goto bad; 2162 } else { 2163 /* 2164 * Caller supplied explicit parameters to use in 2165 * sending the frame. 2166 */ 2167 if (rum_tx_raw(sc, m, ni, params) != 0) 2168 goto bad; 2169 } 2170 RUM_UNLOCK(sc); 2171 2172 return 0; 2173bad: 2174 ifp->if_oerrors++; 2175 RUM_UNLOCK(sc); 2176 ieee80211_free_node(ni); 2177 return EIO; 2178} 2179 2180static void 2181rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2182{ 2183 struct ieee80211vap *vap = ni->ni_vap; 2184 struct rum_vap *rvp = RUM_VAP(vap); 2185 2186 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2187 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2188 2189 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2190 2191 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2192} 2193 2194static void 2195rum_amrr_timeout(void *arg) 2196{ 2197 struct rum_vap *rvp = arg; 2198 struct ieee80211vap *vap = &rvp->vap; 2199 struct ieee80211com *ic = vap->iv_ic; 2200 2201 ieee80211_runtask(ic, &rvp->amrr_task); 2202} 2203 2204static void 2205rum_amrr_task(void *arg, int pending) 2206{ 2207 struct rum_vap *rvp = arg; 2208 struct ieee80211vap *vap = &rvp->vap; 2209 struct ieee80211com *ic = vap->iv_ic; 2210 struct ifnet *ifp = ic->ic_ifp; 2211 struct rum_softc *sc = ifp->if_softc; 2212 struct ieee80211_node *ni = vap->iv_bss; 2213 int ok, fail; 2214 2215 RUM_LOCK(sc); 2216 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2217 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2218 2219 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2220 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2221 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2222 2223 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2224 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2225 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2226 2227 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2228 2229 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2230 RUM_UNLOCK(sc); 2231} 2232 2233/* ARGUSED */ 2234static struct ieee80211_node * 2235rum_node_alloc(struct ieee80211vap *vap __unused, 2236 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2237{ 2238 struct rum_node *rn; 2239 2240 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2241 return rn != NULL ? &rn->ni : NULL; 2242} 2243 2244static void 2245rum_newassoc(struct ieee80211_node *ni, int isnew) 2246{ 2247 struct ieee80211vap *vap = ni->ni_vap; 2248 2249 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2250} 2251 2252static void 2253rum_scan_start(struct ieee80211com *ic) 2254{ 2255 struct ifnet *ifp = ic->ic_ifp; 2256 struct rum_softc *sc = ifp->if_softc; 2257 uint32_t tmp; 2258 2259 RUM_LOCK(sc); 2260 /* abort TSF synchronization */ 2261 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2262 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2263 rum_set_bssid(sc, ifp->if_broadcastaddr); 2264 RUM_UNLOCK(sc); 2265 2266} 2267 2268static void 2269rum_scan_end(struct ieee80211com *ic) 2270{ 2271 struct rum_softc *sc = ic->ic_ifp->if_softc; 2272 2273 RUM_LOCK(sc); 2274 rum_enable_tsf_sync(sc); 2275 rum_set_bssid(sc, sc->sc_bssid); 2276 RUM_UNLOCK(sc); 2277 2278} 2279 2280static void 2281rum_set_channel(struct ieee80211com *ic) 2282{ 2283 struct rum_softc *sc = ic->ic_ifp->if_softc; 2284 2285 RUM_LOCK(sc); 2286 rum_set_chan(sc, ic->ic_curchan); 2287 RUM_UNLOCK(sc); 2288} 2289 2290static int 2291rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2292{ 2293 struct ifnet *ifp = sc->sc_ifp; 2294 struct ieee80211com *ic = ifp->if_l2com; 2295 int lna, agc, rssi; 2296 2297 lna = (raw >> 5) & 0x3; 2298 agc = raw & 0x1f; 2299 2300 if (lna == 0) { 2301 /* 2302 * No RSSI mapping 2303 * 2304 * NB: Since RSSI is relative to noise floor, -1 is 2305 * adequate for caller to know error happened. 2306 */ 2307 return -1; 2308 } 2309 2310 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2311 2312 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2313 rssi += sc->rssi_2ghz_corr; 2314 2315 if (lna == 1) 2316 rssi -= 64; 2317 else if (lna == 2) 2318 rssi -= 74; 2319 else if (lna == 3) 2320 rssi -= 90; 2321 } else { 2322 rssi += sc->rssi_5ghz_corr; 2323 2324 if (!sc->ext_5ghz_lna && lna != 1) 2325 rssi += 4; 2326 2327 if (lna == 1) 2328 rssi -= 64; 2329 else if (lna == 2) 2330 rssi -= 86; 2331 else if (lna == 3) 2332 rssi -= 100; 2333 } 2334 return rssi; 2335} 2336 2337static int 2338rum_pause(struct rum_softc *sc, int timeout) 2339{ 2340 2341 usb2_pause_mtx(&sc->sc_mtx, timeout); 2342 return (0); 2343} 2344 2345static device_method_t rum_methods[] = { 2346 /* Device interface */ 2347 DEVMETHOD(device_probe, rum_match), 2348 DEVMETHOD(device_attach, rum_attach), 2349 DEVMETHOD(device_detach, rum_detach), 2350 2351 { 0, 0 } 2352}; 2353 2354static driver_t rum_driver = { 2355 .name = "rum", 2356 .methods = rum_methods, 2357 .size = sizeof(struct rum_softc), 2358}; 2359 2360static devclass_t rum_devclass; 2361 2362DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2363