if_rum.c revision 196969
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 196969 2009-09-08 13:16:55Z phk $ */ 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 196969 2009-09-08 13:16:55Z phk $"); 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 46#include <net/bpf.h> 47#include <net/if.h> 48#include <net/ethernet.h> 49#include <net/if_dl.h> 50#include <net/if_media.h> 51#include <net/if_types.h> 52 53#ifdef INET 54#include <netinet/in.h> 55#include <netinet/in_systm.h> 56#include <netinet/in_var.h> 57#include <netinet/if_ether.h> 58#include <netinet/ip.h> 59#endif 60 61#include <net80211/ieee80211_var.h> 62#include <net80211/ieee80211_regdomain.h> 63#include <net80211/ieee80211_radiotap.h> 64#include <net80211/ieee80211_amrr.h> 65 66#include <dev/usb/usb.h> 67#include <dev/usb/usbdi.h> 68#include "usbdevs.h" 69 70#define USB_DEBUG_VAR rum_debug 71#include <dev/usb/usb_debug.h> 72 73#include <dev/usb/wlan/if_rumreg.h> 74#include <dev/usb/wlan/if_rumvar.h> 75#include <dev/usb/wlan/if_rumfw.h> 76 77#if USB_DEBUG 78static int rum_debug = 0; 79 80SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 81SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 82 "Debug level"); 83#endif 84 85static const struct usb_device_id rum_devs[] = { 86 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) }, 87 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) }, 88 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3) }, 89 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4) }, 90 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700) }, 91 { USB_VP(USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO) }, 92 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1) }, 93 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2) }, 94 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A) }, 95 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3) }, 96 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC) }, 97 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR) }, 98 { USB_VP(USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2) }, 99 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL) }, 100 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX) }, 101 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F) }, 102 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573) }, 103 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1) }, 104 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340) }, 105 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111) }, 106 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110) }, 107 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS) }, 108 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS) }, 109 { USB_VP(USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573) }, 110 { USB_VP(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573) }, 111 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB) }, 112 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) }, 113 { USB_VP(USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G) }, 114 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP) }, 115 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP) }, 116 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1) }, 117 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2) }, 118 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3) }, 119 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4) }, 120 { USB_VP(USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573) }, 121 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP) }, 122 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2) }, 123 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM) }, 124 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573) }, 125 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2) }, 126 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_3) }, 127 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573) }, 128 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2) }, 129 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671) }, 130 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2) }, 131 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172) }, 132 { USB_VP(USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573) }, 133 { USB_VP(USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573) }, 134}; 135 136MODULE_DEPEND(rum, wlan, 1, 1, 1); 137MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 138MODULE_DEPEND(rum, usb, 1, 1, 1); 139 140static device_probe_t rum_match; 141static device_attach_t rum_attach; 142static device_detach_t rum_detach; 143 144static usb_callback_t rum_bulk_read_callback; 145static usb_callback_t rum_bulk_write_callback; 146 147static usb_error_t rum_do_request(struct rum_softc *sc, 148 struct usb_device_request *req, void *data); 149static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 150 const char name[IFNAMSIZ], int unit, int opmode, 151 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 152 const uint8_t mac[IEEE80211_ADDR_LEN]); 153static void rum_vap_delete(struct ieee80211vap *); 154static void rum_tx_free(struct rum_tx_data *, int); 155static void rum_setup_tx_list(struct rum_softc *); 156static void rum_unsetup_tx_list(struct rum_softc *); 157static int rum_newstate(struct ieee80211vap *, 158 enum ieee80211_state, int); 159static void rum_setup_tx_desc(struct rum_softc *, 160 struct rum_tx_desc *, uint32_t, uint16_t, int, 161 int); 162static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 163 struct ieee80211_node *); 164static int rum_tx_raw(struct rum_softc *, struct mbuf *, 165 struct ieee80211_node *, 166 const struct ieee80211_bpf_params *); 167static int rum_tx_data(struct rum_softc *, struct mbuf *, 168 struct ieee80211_node *); 169static void rum_start(struct ifnet *); 170static int rum_ioctl(struct ifnet *, u_long, caddr_t); 171static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 172 int); 173static uint32_t rum_read(struct rum_softc *, uint16_t); 174static void rum_read_multi(struct rum_softc *, uint16_t, void *, 175 int); 176static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 177static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 178 size_t); 179static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 180static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 181static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 182static void rum_select_antenna(struct rum_softc *); 183static void rum_enable_mrr(struct rum_softc *); 184static void rum_set_txpreamble(struct rum_softc *); 185static void rum_set_basicrates(struct rum_softc *); 186static void rum_select_band(struct rum_softc *, 187 struct ieee80211_channel *); 188static void rum_set_chan(struct rum_softc *, 189 struct ieee80211_channel *); 190static void rum_enable_tsf_sync(struct rum_softc *); 191static void rum_enable_tsf(struct rum_softc *); 192static void rum_update_slot(struct ifnet *); 193static void rum_set_bssid(struct rum_softc *, const uint8_t *); 194static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 195static void rum_update_promisc(struct ifnet *); 196static void rum_setpromisc(struct rum_softc *); 197static const char *rum_get_rf(int); 198static void rum_read_eeprom(struct rum_softc *); 199static int rum_bbp_init(struct rum_softc *); 200static void rum_init_locked(struct rum_softc *); 201static void rum_init(void *); 202static void rum_stop(struct rum_softc *); 203static void rum_load_microcode(struct rum_softc *, const uint8_t *, 204 size_t); 205static int rum_prepare_beacon(struct rum_softc *, 206 struct ieee80211vap *); 207static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 208 const struct ieee80211_bpf_params *); 209static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 210 const uint8_t mac[IEEE80211_ADDR_LEN]); 211static void rum_newassoc(struct ieee80211_node *, int); 212static void rum_scan_start(struct ieee80211com *); 213static void rum_scan_end(struct ieee80211com *); 214static void rum_set_channel(struct ieee80211com *); 215static int rum_get_rssi(struct rum_softc *, uint8_t); 216static void rum_amrr_start(struct rum_softc *, 217 struct ieee80211_node *); 218static void rum_amrr_timeout(void *); 219static void rum_amrr_task(void *, int); 220static int rum_pause(struct rum_softc *, int); 221 222static const struct { 223 uint32_t reg; 224 uint32_t val; 225} rum_def_mac[] = { 226 { RT2573_TXRX_CSR0, 0x025fb032 }, 227 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 228 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 229 { RT2573_TXRX_CSR3, 0x00858687 }, 230 { RT2573_TXRX_CSR7, 0x2e31353b }, 231 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 232 { RT2573_TXRX_CSR15, 0x0000000f }, 233 { RT2573_MAC_CSR6, 0x00000fff }, 234 { RT2573_MAC_CSR8, 0x016c030a }, 235 { RT2573_MAC_CSR10, 0x00000718 }, 236 { RT2573_MAC_CSR12, 0x00000004 }, 237 { RT2573_MAC_CSR13, 0x00007f00 }, 238 { RT2573_SEC_CSR0, 0x00000000 }, 239 { RT2573_SEC_CSR1, 0x00000000 }, 240 { RT2573_SEC_CSR5, 0x00000000 }, 241 { RT2573_PHY_CSR1, 0x000023b0 }, 242 { RT2573_PHY_CSR5, 0x00040a06 }, 243 { RT2573_PHY_CSR6, 0x00080606 }, 244 { RT2573_PHY_CSR7, 0x00000408 }, 245 { RT2573_AIFSN_CSR, 0x00002273 }, 246 { RT2573_CWMIN_CSR, 0x00002344 }, 247 { RT2573_CWMAX_CSR, 0x000034aa } 248}; 249 250static const struct { 251 uint8_t reg; 252 uint8_t val; 253} rum_def_bbp[] = { 254 { 3, 0x80 }, 255 { 15, 0x30 }, 256 { 17, 0x20 }, 257 { 21, 0xc8 }, 258 { 22, 0x38 }, 259 { 23, 0x06 }, 260 { 24, 0xfe }, 261 { 25, 0x0a }, 262 { 26, 0x0d }, 263 { 32, 0x0b }, 264 { 34, 0x12 }, 265 { 37, 0x07 }, 266 { 39, 0xf8 }, 267 { 41, 0x60 }, 268 { 53, 0x10 }, 269 { 54, 0x18 }, 270 { 60, 0x10 }, 271 { 61, 0x04 }, 272 { 62, 0x04 }, 273 { 75, 0xfe }, 274 { 86, 0xfe }, 275 { 88, 0xfe }, 276 { 90, 0x0f }, 277 { 99, 0x00 }, 278 { 102, 0x16 }, 279 { 107, 0x04 } 280}; 281 282static const struct rfprog { 283 uint8_t chan; 284 uint32_t r1, r2, r3, r4; 285} rum_rf5226[] = { 286 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 287 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 288 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 289 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 290 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 291 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 292 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 293 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 294 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 295 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 296 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 297 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 298 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 299 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 300 301 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 302 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 303 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 304 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 305 306 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 307 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 308 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 309 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 310 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 311 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 312 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 313 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 314 315 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 316 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 317 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 318 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 319 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 320 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 321 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 322 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 323 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 324 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 325 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 326 327 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 328 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 329 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 330 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 331 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 332}, rum_rf5225[] = { 333 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 334 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 335 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 336 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 337 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 338 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 339 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 340 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 341 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 342 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 343 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 344 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 345 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 346 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 347 348 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 349 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 350 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 351 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 352 353 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 354 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 355 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 356 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 357 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 358 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 359 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 360 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 361 362 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 363 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 364 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 365 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 366 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 367 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 368 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 369 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 370 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 371 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 372 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 373 374 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 375 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 376 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 377 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 378 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 379}; 380 381static const struct usb_config rum_config[RUM_N_TRANSFER] = { 382 [RUM_BULK_WR] = { 383 .type = UE_BULK, 384 .endpoint = UE_ADDR_ANY, 385 .direction = UE_DIR_OUT, 386 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 387 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 388 .callback = rum_bulk_write_callback, 389 .timeout = 5000, /* ms */ 390 }, 391 [RUM_BULK_RD] = { 392 .type = UE_BULK, 393 .endpoint = UE_ADDR_ANY, 394 .direction = UE_DIR_IN, 395 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 396 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 397 .callback = rum_bulk_read_callback, 398 }, 399}; 400 401static int 402rum_match(device_t self) 403{ 404 struct usb_attach_arg *uaa = device_get_ivars(self); 405 406 if (uaa->usb_mode != USB_MODE_HOST) 407 return (ENXIO); 408 if (uaa->info.bConfigIndex != 0) 409 return (ENXIO); 410 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 411 return (ENXIO); 412 413 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 414} 415 416static int 417rum_attach(device_t self) 418{ 419 struct usb_attach_arg *uaa = device_get_ivars(self); 420 struct rum_softc *sc = device_get_softc(self); 421 struct ieee80211com *ic; 422 struct ifnet *ifp; 423 uint8_t iface_index, bands; 424 uint32_t tmp; 425 int error, ntries; 426 427 device_set_usb_desc(self); 428 sc->sc_udev = uaa->device; 429 sc->sc_dev = self; 430 431 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 432 MTX_NETWORK_LOCK, MTX_DEF); 433 434 iface_index = RT2573_IFACE_INDEX; 435 error = usbd_transfer_setup(uaa->device, &iface_index, 436 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 437 if (error) { 438 device_printf(self, "could not allocate USB transfers, " 439 "err=%s\n", usbd_errstr(error)); 440 goto detach; 441 } 442 443 RUM_LOCK(sc); 444 /* retrieve RT2573 rev. no */ 445 for (ntries = 0; ntries < 100; ntries++) { 446 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 447 break; 448 if (rum_pause(sc, hz / 100)) 449 break; 450 } 451 if (ntries == 100) { 452 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 453 RUM_UNLOCK(sc); 454 goto detach; 455 } 456 457 /* retrieve MAC address and various other things from EEPROM */ 458 rum_read_eeprom(sc); 459 460 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 461 tmp, rum_get_rf(sc->rf_rev)); 462 463 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 464 RUM_UNLOCK(sc); 465 466 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 467 if (ifp == NULL) { 468 device_printf(sc->sc_dev, "can not if_alloc()\n"); 469 goto detach; 470 } 471 ic = ifp->if_l2com; 472 473 ifp->if_softc = sc; 474 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 475 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 476 ifp->if_init = rum_init; 477 ifp->if_ioctl = rum_ioctl; 478 ifp->if_start = rum_start; 479 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 480 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 481 IFQ_SET_READY(&ifp->if_snd); 482 483 ic->ic_ifp = ifp; 484 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 485 486 /* set device capabilities */ 487 ic->ic_caps = 488 IEEE80211_C_STA /* station mode supported */ 489 | IEEE80211_C_IBSS /* IBSS mode supported */ 490 | IEEE80211_C_MONITOR /* monitor mode supported */ 491 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 492 | IEEE80211_C_TXPMGT /* tx power management */ 493 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 494 | IEEE80211_C_SHSLOT /* short slot time supported */ 495 | IEEE80211_C_BGSCAN /* bg scanning supported */ 496 | IEEE80211_C_WPA /* 802.11i */ 497 ; 498 499 bands = 0; 500 setbit(&bands, IEEE80211_MODE_11B); 501 setbit(&bands, IEEE80211_MODE_11G); 502 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 503 setbit(&bands, IEEE80211_MODE_11A); 504 ieee80211_init_channels(ic, NULL, &bands); 505 506 ieee80211_ifattach(ic, sc->sc_bssid); 507 ic->ic_update_promisc = rum_update_promisc; 508 ic->ic_newassoc = rum_newassoc; 509 ic->ic_raw_xmit = rum_raw_xmit; 510 ic->ic_node_alloc = rum_node_alloc; 511 ic->ic_scan_start = rum_scan_start; 512 ic->ic_scan_end = rum_scan_end; 513 ic->ic_set_channel = rum_set_channel; 514 515 ic->ic_vap_create = rum_vap_create; 516 ic->ic_vap_delete = rum_vap_delete; 517 518 ieee80211_radiotap_attach(ic, 519 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 520 RT2573_TX_RADIOTAP_PRESENT, 521 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 522 RT2573_RX_RADIOTAP_PRESENT); 523 524 if (bootverbose) 525 ieee80211_announce(ic); 526 527 return (0); 528 529detach: 530 rum_detach(self); 531 return (ENXIO); /* failure */ 532} 533 534static int 535rum_detach(device_t self) 536{ 537 struct rum_softc *sc = device_get_softc(self); 538 struct ifnet *ifp = sc->sc_ifp; 539 struct ieee80211com *ic; 540 541 /* stop all USB transfers */ 542 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 543 544 /* free TX list, if any */ 545 RUM_LOCK(sc); 546 rum_unsetup_tx_list(sc); 547 RUM_UNLOCK(sc); 548 549 if (ifp) { 550 ic = ifp->if_l2com; 551 ieee80211_ifdetach(ic); 552 if_free(ifp); 553 } 554 mtx_destroy(&sc->sc_mtx); 555 556 return (0); 557} 558 559static usb_error_t 560rum_do_request(struct rum_softc *sc, 561 struct usb_device_request *req, void *data) 562{ 563 usb_error_t err; 564 int ntries = 10; 565 566 while (ntries--) { 567 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 568 req, data, 0, NULL, 250 /* ms */); 569 if (err == 0) 570 break; 571 572 DPRINTFN(1, "Control request failed, %s (retrying)\n", 573 usbd_errstr(err)); 574 if (rum_pause(sc, hz / 100)) 575 break; 576 } 577 return (err); 578} 579 580static struct ieee80211vap * 581rum_vap_create(struct ieee80211com *ic, 582 const char name[IFNAMSIZ], int unit, int opmode, int flags, 583 const uint8_t bssid[IEEE80211_ADDR_LEN], 584 const uint8_t mac[IEEE80211_ADDR_LEN]) 585{ 586 struct rum_softc *sc = ic->ic_ifp->if_softc; 587 struct rum_vap *rvp; 588 struct ieee80211vap *vap; 589 590 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 591 return NULL; 592 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 593 M_80211_VAP, M_NOWAIT | M_ZERO); 594 if (rvp == NULL) 595 return NULL; 596 vap = &rvp->vap; 597 /* enable s/w bmiss handling for sta mode */ 598 ieee80211_vap_setup(ic, vap, name, unit, opmode, 599 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 600 601 /* override state transition machine */ 602 rvp->newstate = vap->iv_newstate; 603 vap->iv_newstate = rum_newstate; 604 605 usb_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 606 TASK_INIT(&rvp->amrr_task, 0, rum_amrr_task, rvp); 607 ieee80211_amrr_init(&rvp->amrr, vap, 608 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 609 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 610 1000 /* 1 sec */); 611 612 /* complete setup */ 613 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 614 ic->ic_opmode = opmode; 615 return vap; 616} 617 618static void 619rum_vap_delete(struct ieee80211vap *vap) 620{ 621 struct rum_vap *rvp = RUM_VAP(vap); 622 struct ieee80211com *ic = vap->iv_ic; 623 624 usb_callout_drain(&rvp->amrr_ch); 625 ieee80211_draintask(ic, &rvp->amrr_task); 626 ieee80211_amrr_cleanup(&rvp->amrr); 627 ieee80211_vap_detach(vap); 628 free(rvp, M_80211_VAP); 629} 630 631static void 632rum_tx_free(struct rum_tx_data *data, int txerr) 633{ 634 struct rum_softc *sc = data->sc; 635 636 if (data->m != NULL) { 637 if (data->m->m_flags & M_TXCB) 638 ieee80211_process_callback(data->ni, data->m, 639 txerr ? ETIMEDOUT : 0); 640 m_freem(data->m); 641 data->m = NULL; 642 643 ieee80211_free_node(data->ni); 644 data->ni = NULL; 645 } 646 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 647 sc->tx_nfree++; 648} 649 650static void 651rum_setup_tx_list(struct rum_softc *sc) 652{ 653 struct rum_tx_data *data; 654 int i; 655 656 sc->tx_nfree = 0; 657 STAILQ_INIT(&sc->tx_q); 658 STAILQ_INIT(&sc->tx_free); 659 660 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 661 data = &sc->tx_data[i]; 662 663 data->sc = sc; 664 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 665 sc->tx_nfree++; 666 } 667} 668 669static void 670rum_unsetup_tx_list(struct rum_softc *sc) 671{ 672 struct rum_tx_data *data; 673 int i; 674 675 /* make sure any subsequent use of the queues will fail */ 676 sc->tx_nfree = 0; 677 STAILQ_INIT(&sc->tx_q); 678 STAILQ_INIT(&sc->tx_free); 679 680 /* free up all node references and mbufs */ 681 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 682 data = &sc->tx_data[i]; 683 684 if (data->m != NULL) { 685 m_freem(data->m); 686 data->m = NULL; 687 } 688 if (data->ni != NULL) { 689 ieee80211_free_node(data->ni); 690 data->ni = NULL; 691 } 692 } 693} 694 695static int 696rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 697{ 698 struct rum_vap *rvp = RUM_VAP(vap); 699 struct ieee80211com *ic = vap->iv_ic; 700 struct rum_softc *sc = ic->ic_ifp->if_softc; 701 const struct ieee80211_txparam *tp; 702 enum ieee80211_state ostate; 703 struct ieee80211_node *ni; 704 uint32_t tmp; 705 706 ostate = vap->iv_state; 707 DPRINTF("%s -> %s\n", 708 ieee80211_state_name[ostate], 709 ieee80211_state_name[nstate]); 710 711 IEEE80211_UNLOCK(ic); 712 RUM_LOCK(sc); 713 usb_callout_stop(&rvp->amrr_ch); 714 715 switch (nstate) { 716 case IEEE80211_S_INIT: 717 if (ostate == IEEE80211_S_RUN) { 718 /* abort TSF synchronization */ 719 tmp = rum_read(sc, RT2573_TXRX_CSR9); 720 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 721 } 722 break; 723 724 case IEEE80211_S_RUN: 725 ni = vap->iv_bss; 726 727 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 728 rum_update_slot(ic->ic_ifp); 729 rum_enable_mrr(sc); 730 rum_set_txpreamble(sc); 731 rum_set_basicrates(sc); 732 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 733 rum_set_bssid(sc, sc->sc_bssid); 734 } 735 736 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 737 vap->iv_opmode == IEEE80211_M_IBSS) 738 rum_prepare_beacon(sc, vap); 739 740 if (vap->iv_opmode != IEEE80211_M_MONITOR) 741 rum_enable_tsf_sync(sc); 742 else 743 rum_enable_tsf(sc); 744 745 /* enable automatic rate adaptation */ 746 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 747 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 748 rum_amrr_start(sc, ni); 749 break; 750 default: 751 break; 752 } 753 RUM_UNLOCK(sc); 754 IEEE80211_LOCK(ic); 755 return (rvp->newstate(vap, nstate, arg)); 756} 757 758static void 759rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 760{ 761 struct rum_softc *sc = usbd_xfer_softc(xfer); 762 struct ifnet *ifp = sc->sc_ifp; 763 struct ieee80211vap *vap; 764 struct rum_tx_data *data; 765 struct mbuf *m; 766 struct usb_page_cache *pc; 767 unsigned int len; 768 int actlen, sumlen; 769 770 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 771 772 switch (USB_GET_STATE(xfer)) { 773 case USB_ST_TRANSFERRED: 774 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 775 776 /* free resources */ 777 data = usbd_xfer_get_priv(xfer); 778 rum_tx_free(data, 0); 779 usbd_xfer_set_priv(xfer, NULL); 780 781 ifp->if_opackets++; 782 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 783 784 /* FALLTHROUGH */ 785 case USB_ST_SETUP: 786tr_setup: 787 data = STAILQ_FIRST(&sc->tx_q); 788 if (data) { 789 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 790 m = data->m; 791 792 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 793 DPRINTFN(0, "data overflow, %u bytes\n", 794 m->m_pkthdr.len); 795 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 796 } 797 pc = usbd_xfer_get_frame(xfer, 0); 798 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 799 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 800 m->m_pkthdr.len); 801 802 vap = data->ni->ni_vap; 803 if (ieee80211_radiotap_active_vap(vap)) { 804 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 805 806 tap->wt_flags = 0; 807 tap->wt_rate = data->rate; 808 tap->wt_antenna = sc->tx_ant; 809 810 ieee80211_radiotap_tx(vap, m); 811 } 812 813 /* align end on a 4-bytes boundary */ 814 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 815 if ((len % 64) == 0) 816 len += 4; 817 818 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 819 m->m_pkthdr.len, len); 820 821 usbd_xfer_set_frame_len(xfer, 0, len); 822 usbd_xfer_set_priv(xfer, data); 823 824 usbd_transfer_submit(xfer); 825 } 826 break; 827 828 default: /* Error */ 829 DPRINTFN(11, "transfer error, %s\n", 830 usbd_errstr(error)); 831 832 ifp->if_oerrors++; 833 data = usbd_xfer_get_priv(xfer); 834 if (data != NULL) { 835 rum_tx_free(data, error); 836 usbd_xfer_set_priv(xfer, NULL); 837 } 838 839 if (error == USB_ERR_STALLED) { 840 /* try to clear stall first */ 841 usbd_xfer_set_stall(xfer); 842 goto tr_setup; 843 } 844 if (error == USB_ERR_TIMEOUT) 845 device_printf(sc->sc_dev, "device timeout\n"); 846 break; 847 } 848} 849 850static void 851rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 852{ 853 struct rum_softc *sc = usbd_xfer_softc(xfer); 854 struct ifnet *ifp = sc->sc_ifp; 855 struct ieee80211com *ic = ifp->if_l2com; 856 struct ieee80211_node *ni; 857 struct mbuf *m = NULL; 858 struct usb_page_cache *pc; 859 uint32_t flags; 860 uint8_t rssi = 0; 861 int len; 862 863 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 864 865 switch (USB_GET_STATE(xfer)) { 866 case USB_ST_TRANSFERRED: 867 868 DPRINTFN(15, "rx done, actlen=%d\n", len); 869 870 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 871 DPRINTF("%s: xfer too short %d\n", 872 device_get_nameunit(sc->sc_dev), len); 873 ifp->if_ierrors++; 874 goto tr_setup; 875 } 876 877 len -= RT2573_RX_DESC_SIZE; 878 pc = usbd_xfer_get_frame(xfer, 0); 879 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 880 881 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 882 flags = le32toh(sc->sc_rx_desc.flags); 883 if (flags & RT2573_RX_CRC_ERROR) { 884 /* 885 * This should not happen since we did not 886 * request to receive those frames when we 887 * filled RUM_TXRX_CSR2: 888 */ 889 DPRINTFN(5, "PHY or CRC error\n"); 890 ifp->if_ierrors++; 891 goto tr_setup; 892 } 893 894 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 895 if (m == NULL) { 896 DPRINTF("could not allocate mbuf\n"); 897 ifp->if_ierrors++; 898 goto tr_setup; 899 } 900 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 901 mtod(m, uint8_t *), len); 902 903 /* finalize mbuf */ 904 m->m_pkthdr.rcvif = ifp; 905 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 906 907 if (ieee80211_radiotap_active(ic)) { 908 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 909 910 /* XXX read tsf */ 911 tap->wr_flags = 0; 912 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 913 (flags & RT2573_RX_OFDM) ? 914 IEEE80211_T_OFDM : IEEE80211_T_CCK); 915 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 916 tap->wr_antnoise = RT2573_NOISE_FLOOR; 917 tap->wr_antenna = sc->rx_ant; 918 } 919 /* FALLTHROUGH */ 920 case USB_ST_SETUP: 921tr_setup: 922 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 923 usbd_transfer_submit(xfer); 924 925 /* 926 * At the end of a USB callback it is always safe to unlock 927 * the private mutex of a device! That is why we do the 928 * "ieee80211_input" here, and not some lines up! 929 */ 930 if (m) { 931 RUM_UNLOCK(sc); 932 ni = ieee80211_find_rxnode(ic, 933 mtod(m, struct ieee80211_frame_min *)); 934 if (ni != NULL) { 935 (void) ieee80211_input(ni, m, rssi, 936 RT2573_NOISE_FLOOR); 937 ieee80211_free_node(ni); 938 } else 939 (void) ieee80211_input_all(ic, m, rssi, 940 RT2573_NOISE_FLOOR); 941 RUM_LOCK(sc); 942 } 943 return; 944 945 default: /* Error */ 946 if (error != USB_ERR_CANCELLED) { 947 /* try to clear stall first */ 948 usbd_xfer_set_stall(xfer); 949 goto tr_setup; 950 } 951 return; 952 } 953} 954 955static uint8_t 956rum_plcp_signal(int rate) 957{ 958 switch (rate) { 959 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 960 case 12: return 0xb; 961 case 18: return 0xf; 962 case 24: return 0xa; 963 case 36: return 0xe; 964 case 48: return 0x9; 965 case 72: return 0xd; 966 case 96: return 0x8; 967 case 108: return 0xc; 968 969 /* CCK rates (NB: not IEEE std, device-specific) */ 970 case 2: return 0x0; 971 case 4: return 0x1; 972 case 11: return 0x2; 973 case 22: return 0x3; 974 } 975 return 0xff; /* XXX unsupported/unknown rate */ 976} 977 978static void 979rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 980 uint32_t flags, uint16_t xflags, int len, int rate) 981{ 982 struct ifnet *ifp = sc->sc_ifp; 983 struct ieee80211com *ic = ifp->if_l2com; 984 uint16_t plcp_length; 985 int remainder; 986 987 desc->flags = htole32(flags); 988 desc->flags |= htole32(RT2573_TX_VALID); 989 desc->flags |= htole32(len << 16); 990 991 desc->xflags = htole16(xflags); 992 993 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 994 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 995 996 /* setup PLCP fields */ 997 desc->plcp_signal = rum_plcp_signal(rate); 998 desc->plcp_service = 4; 999 1000 len += IEEE80211_CRC_LEN; 1001 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1002 desc->flags |= htole32(RT2573_TX_OFDM); 1003 1004 plcp_length = len & 0xfff; 1005 desc->plcp_length_hi = plcp_length >> 6; 1006 desc->plcp_length_lo = plcp_length & 0x3f; 1007 } else { 1008 plcp_length = (16 * len + rate - 1) / rate; 1009 if (rate == 22) { 1010 remainder = (16 * len) % 22; 1011 if (remainder != 0 && remainder < 7) 1012 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1013 } 1014 desc->plcp_length_hi = plcp_length >> 8; 1015 desc->plcp_length_lo = plcp_length & 0xff; 1016 1017 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1018 desc->plcp_signal |= 0x08; 1019 } 1020} 1021 1022static int 1023rum_sendprot(struct rum_softc *sc, 1024 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1025{ 1026 struct ieee80211com *ic = ni->ni_ic; 1027 const struct ieee80211_frame *wh; 1028 struct rum_tx_data *data; 1029 struct mbuf *mprot; 1030 int protrate, ackrate, pktlen, flags, isshort; 1031 uint16_t dur; 1032 1033 RUM_LOCK_ASSERT(sc, MA_OWNED); 1034 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1035 ("protection %d", prot)); 1036 1037 wh = mtod(m, const struct ieee80211_frame *); 1038 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1039 1040 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1041 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1042 1043 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1044 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort); 1045 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1046 flags = RT2573_TX_MORE_FRAG; 1047 if (prot == IEEE80211_PROT_RTSCTS) { 1048 /* NB: CTS is the same size as an ACK */ 1049 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1050 flags |= RT2573_TX_NEED_ACK; 1051 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1052 } else { 1053 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1054 } 1055 if (mprot == NULL) { 1056 /* XXX stat + msg */ 1057 return (ENOBUFS); 1058 } 1059 data = STAILQ_FIRST(&sc->tx_free); 1060 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1061 sc->tx_nfree--; 1062 1063 data->m = mprot; 1064 data->ni = ieee80211_ref_node(ni); 1065 data->rate = protrate; 1066 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1067 1068 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1069 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1070 1071 return 0; 1072} 1073 1074static int 1075rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1076{ 1077 struct ieee80211vap *vap = ni->ni_vap; 1078 struct ifnet *ifp = sc->sc_ifp; 1079 struct ieee80211com *ic = ifp->if_l2com; 1080 struct rum_tx_data *data; 1081 struct ieee80211_frame *wh; 1082 const struct ieee80211_txparam *tp; 1083 struct ieee80211_key *k; 1084 uint32_t flags = 0; 1085 uint16_t dur; 1086 1087 RUM_LOCK_ASSERT(sc, MA_OWNED); 1088 1089 data = STAILQ_FIRST(&sc->tx_free); 1090 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1091 sc->tx_nfree--; 1092 1093 wh = mtod(m0, struct ieee80211_frame *); 1094 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1095 k = ieee80211_crypto_encap(ni, m0); 1096 if (k == NULL) { 1097 m_freem(m0); 1098 return ENOBUFS; 1099 } 1100 wh = mtod(m0, struct ieee80211_frame *); 1101 } 1102 1103 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1104 1105 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1106 flags |= RT2573_TX_NEED_ACK; 1107 1108 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1109 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1110 *(uint16_t *)wh->i_dur = htole16(dur); 1111 1112 /* tell hardware to add timestamp for probe responses */ 1113 if ((wh->i_fc[0] & 1114 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1115 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1116 flags |= RT2573_TX_TIMESTAMP; 1117 } 1118 1119 data->m = m0; 1120 data->ni = ni; 1121 data->rate = tp->mgmtrate; 1122 1123 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1124 1125 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1126 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1127 1128 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1129 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1130 1131 return (0); 1132} 1133 1134static int 1135rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1136 const struct ieee80211_bpf_params *params) 1137{ 1138 struct ieee80211com *ic = ni->ni_ic; 1139 struct rum_tx_data *data; 1140 uint32_t flags; 1141 int rate, error; 1142 1143 RUM_LOCK_ASSERT(sc, MA_OWNED); 1144 KASSERT(params != NULL, ("no raw xmit params")); 1145 1146 rate = params->ibp_rate0; 1147 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1148 m_freem(m0); 1149 return EINVAL; 1150 } 1151 flags = 0; 1152 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1153 flags |= RT2573_TX_NEED_ACK; 1154 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1155 error = rum_sendprot(sc, m0, ni, 1156 params->ibp_flags & IEEE80211_BPF_RTS ? 1157 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1158 rate); 1159 if (error || sc->tx_nfree == 0) { 1160 m_freem(m0); 1161 return ENOBUFS; 1162 } 1163 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1164 } 1165 1166 data = STAILQ_FIRST(&sc->tx_free); 1167 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1168 sc->tx_nfree--; 1169 1170 data->m = m0; 1171 data->ni = ni; 1172 data->rate = rate; 1173 1174 /* XXX need to setup descriptor ourself */ 1175 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1176 1177 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1178 m0->m_pkthdr.len, rate); 1179 1180 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1181 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1182 1183 return 0; 1184} 1185 1186static int 1187rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1188{ 1189 struct ieee80211vap *vap = ni->ni_vap; 1190 struct ifnet *ifp = sc->sc_ifp; 1191 struct ieee80211com *ic = ifp->if_l2com; 1192 struct rum_tx_data *data; 1193 struct ieee80211_frame *wh; 1194 const struct ieee80211_txparam *tp; 1195 struct ieee80211_key *k; 1196 uint32_t flags = 0; 1197 uint16_t dur; 1198 int error, rate; 1199 1200 RUM_LOCK_ASSERT(sc, MA_OWNED); 1201 1202 wh = mtod(m0, struct ieee80211_frame *); 1203 1204 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1205 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1206 rate = tp->mcastrate; 1207 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1208 rate = tp->ucastrate; 1209 else 1210 rate = ni->ni_txrate; 1211 1212 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1213 k = ieee80211_crypto_encap(ni, m0); 1214 if (k == NULL) { 1215 m_freem(m0); 1216 return ENOBUFS; 1217 } 1218 1219 /* packet header may have moved, reset our local pointer */ 1220 wh = mtod(m0, struct ieee80211_frame *); 1221 } 1222 1223 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1224 int prot = IEEE80211_PROT_NONE; 1225 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1226 prot = IEEE80211_PROT_RTSCTS; 1227 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1228 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1229 prot = ic->ic_protmode; 1230 if (prot != IEEE80211_PROT_NONE) { 1231 error = rum_sendprot(sc, m0, ni, prot, rate); 1232 if (error || sc->tx_nfree == 0) { 1233 m_freem(m0); 1234 return ENOBUFS; 1235 } 1236 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1237 } 1238 } 1239 1240 data = STAILQ_FIRST(&sc->tx_free); 1241 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1242 sc->tx_nfree--; 1243 1244 data->m = m0; 1245 data->ni = ni; 1246 data->rate = rate; 1247 1248 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1249 flags |= RT2573_TX_NEED_ACK; 1250 flags |= RT2573_TX_MORE_FRAG; 1251 1252 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1253 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1254 *(uint16_t *)wh->i_dur = htole16(dur); 1255 } 1256 1257 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1258 1259 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1260 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1261 1262 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1263 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1264 1265 return 0; 1266} 1267 1268static void 1269rum_start(struct ifnet *ifp) 1270{ 1271 struct rum_softc *sc = ifp->if_softc; 1272 struct ieee80211_node *ni; 1273 struct mbuf *m; 1274 1275 RUM_LOCK(sc); 1276 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1277 RUM_UNLOCK(sc); 1278 return; 1279 } 1280 for (;;) { 1281 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1282 if (m == NULL) 1283 break; 1284 if (sc->tx_nfree < RUM_TX_MINFREE) { 1285 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1286 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1287 break; 1288 } 1289 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1290 if (rum_tx_data(sc, m, ni) != 0) { 1291 ieee80211_free_node(ni); 1292 ifp->if_oerrors++; 1293 break; 1294 } 1295 } 1296 RUM_UNLOCK(sc); 1297} 1298 1299static int 1300rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1301{ 1302 struct rum_softc *sc = ifp->if_softc; 1303 struct ieee80211com *ic = ifp->if_l2com; 1304 struct ifreq *ifr = (struct ifreq *) data; 1305 int error = 0, startall = 0; 1306 1307 switch (cmd) { 1308 case SIOCSIFFLAGS: 1309 RUM_LOCK(sc); 1310 if (ifp->if_flags & IFF_UP) { 1311 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1312 rum_init_locked(sc); 1313 startall = 1; 1314 } else 1315 rum_setpromisc(sc); 1316 } else { 1317 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1318 rum_stop(sc); 1319 } 1320 RUM_UNLOCK(sc); 1321 if (startall) 1322 ieee80211_start_all(ic); 1323 break; 1324 case SIOCGIFMEDIA: 1325 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1326 break; 1327 case SIOCGIFADDR: 1328 error = ether_ioctl(ifp, cmd, data); 1329 break; 1330 default: 1331 error = EINVAL; 1332 break; 1333 } 1334 return error; 1335} 1336 1337static void 1338rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1339{ 1340 struct usb_device_request req; 1341 usb_error_t error; 1342 1343 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1344 req.bRequest = RT2573_READ_EEPROM; 1345 USETW(req.wValue, 0); 1346 USETW(req.wIndex, addr); 1347 USETW(req.wLength, len); 1348 1349 error = rum_do_request(sc, &req, buf); 1350 if (error != 0) { 1351 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1352 usbd_errstr(error)); 1353 } 1354} 1355 1356static uint32_t 1357rum_read(struct rum_softc *sc, uint16_t reg) 1358{ 1359 uint32_t val; 1360 1361 rum_read_multi(sc, reg, &val, sizeof val); 1362 1363 return le32toh(val); 1364} 1365 1366static void 1367rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1368{ 1369 struct usb_device_request req; 1370 usb_error_t error; 1371 1372 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1373 req.bRequest = RT2573_READ_MULTI_MAC; 1374 USETW(req.wValue, 0); 1375 USETW(req.wIndex, reg); 1376 USETW(req.wLength, len); 1377 1378 error = rum_do_request(sc, &req, buf); 1379 if (error != 0) { 1380 device_printf(sc->sc_dev, 1381 "could not multi read MAC register: %s\n", 1382 usbd_errstr(error)); 1383 } 1384} 1385 1386static usb_error_t 1387rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1388{ 1389 uint32_t tmp = htole32(val); 1390 1391 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1392} 1393 1394static usb_error_t 1395rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1396{ 1397 struct usb_device_request req; 1398 usb_error_t error; 1399 1400 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1401 req.bRequest = RT2573_WRITE_MULTI_MAC; 1402 USETW(req.wValue, 0); 1403 USETW(req.wIndex, reg); 1404 USETW(req.wLength, len); 1405 1406 error = rum_do_request(sc, &req, buf); 1407 if (error != 0) { 1408 device_printf(sc->sc_dev, 1409 "could not multi write MAC register: %s\n", 1410 usbd_errstr(error)); 1411 } 1412 return (error); 1413} 1414 1415static void 1416rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1417{ 1418 uint32_t tmp; 1419 int ntries; 1420 1421 DPRINTFN(2, "reg=0x%08x\n", reg); 1422 1423 for (ntries = 0; ntries < 100; ntries++) { 1424 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1425 break; 1426 if (rum_pause(sc, hz / 100)) 1427 break; 1428 } 1429 if (ntries == 100) { 1430 device_printf(sc->sc_dev, "could not write to BBP\n"); 1431 return; 1432 } 1433 1434 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1435 rum_write(sc, RT2573_PHY_CSR3, tmp); 1436} 1437 1438static uint8_t 1439rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1440{ 1441 uint32_t val; 1442 int ntries; 1443 1444 DPRINTFN(2, "reg=0x%08x\n", reg); 1445 1446 for (ntries = 0; ntries < 100; ntries++) { 1447 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1448 break; 1449 if (rum_pause(sc, hz / 100)) 1450 break; 1451 } 1452 if (ntries == 100) { 1453 device_printf(sc->sc_dev, "could not read BBP\n"); 1454 return 0; 1455 } 1456 1457 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1458 rum_write(sc, RT2573_PHY_CSR3, val); 1459 1460 for (ntries = 0; ntries < 100; ntries++) { 1461 val = rum_read(sc, RT2573_PHY_CSR3); 1462 if (!(val & RT2573_BBP_BUSY)) 1463 return val & 0xff; 1464 if (rum_pause(sc, hz / 100)) 1465 break; 1466 } 1467 1468 device_printf(sc->sc_dev, "could not read BBP\n"); 1469 return 0; 1470} 1471 1472static void 1473rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1474{ 1475 uint32_t tmp; 1476 int ntries; 1477 1478 for (ntries = 0; ntries < 100; ntries++) { 1479 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1480 break; 1481 if (rum_pause(sc, hz / 100)) 1482 break; 1483 } 1484 if (ntries == 100) { 1485 device_printf(sc->sc_dev, "could not write to RF\n"); 1486 return; 1487 } 1488 1489 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | ((val & 0xfffff) << 2) | 1490 (reg & 3); 1491 rum_write(sc, RT2573_PHY_CSR4, tmp); 1492 1493 /* remember last written value in sc */ 1494 sc->rf_regs[reg] = val; 1495 1496 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1497} 1498 1499static void 1500rum_select_antenna(struct rum_softc *sc) 1501{ 1502 uint8_t bbp4, bbp77; 1503 uint32_t tmp; 1504 1505 bbp4 = rum_bbp_read(sc, 4); 1506 bbp77 = rum_bbp_read(sc, 77); 1507 1508 /* TBD */ 1509 1510 /* make sure Rx is disabled before switching antenna */ 1511 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1512 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1513 1514 rum_bbp_write(sc, 4, bbp4); 1515 rum_bbp_write(sc, 77, bbp77); 1516 1517 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1518} 1519 1520/* 1521 * Enable multi-rate retries for frames sent at OFDM rates. 1522 * In 802.11b/g mode, allow fallback to CCK rates. 1523 */ 1524static void 1525rum_enable_mrr(struct rum_softc *sc) 1526{ 1527 struct ifnet *ifp = sc->sc_ifp; 1528 struct ieee80211com *ic = ifp->if_l2com; 1529 uint32_t tmp; 1530 1531 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1532 1533 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1534 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1535 tmp |= RT2573_MRR_CCK_FALLBACK; 1536 tmp |= RT2573_MRR_ENABLED; 1537 1538 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1539} 1540 1541static void 1542rum_set_txpreamble(struct rum_softc *sc) 1543{ 1544 struct ifnet *ifp = sc->sc_ifp; 1545 struct ieee80211com *ic = ifp->if_l2com; 1546 uint32_t tmp; 1547 1548 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1549 1550 tmp &= ~RT2573_SHORT_PREAMBLE; 1551 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1552 tmp |= RT2573_SHORT_PREAMBLE; 1553 1554 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1555} 1556 1557static void 1558rum_set_basicrates(struct rum_softc *sc) 1559{ 1560 struct ifnet *ifp = sc->sc_ifp; 1561 struct ieee80211com *ic = ifp->if_l2com; 1562 1563 /* update basic rate set */ 1564 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1565 /* 11b basic rates: 1, 2Mbps */ 1566 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1567 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1568 /* 11a basic rates: 6, 12, 24Mbps */ 1569 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1570 } else { 1571 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1572 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1573 } 1574} 1575 1576/* 1577 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1578 * driver. 1579 */ 1580static void 1581rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1582{ 1583 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1584 uint32_t tmp; 1585 1586 /* update all BBP registers that depend on the band */ 1587 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1588 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1589 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1590 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1591 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1592 } 1593 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1594 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1595 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1596 } 1597 1598 sc->bbp17 = bbp17; 1599 rum_bbp_write(sc, 17, bbp17); 1600 rum_bbp_write(sc, 96, bbp96); 1601 rum_bbp_write(sc, 104, bbp104); 1602 1603 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1604 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1605 rum_bbp_write(sc, 75, 0x80); 1606 rum_bbp_write(sc, 86, 0x80); 1607 rum_bbp_write(sc, 88, 0x80); 1608 } 1609 1610 rum_bbp_write(sc, 35, bbp35); 1611 rum_bbp_write(sc, 97, bbp97); 1612 rum_bbp_write(sc, 98, bbp98); 1613 1614 tmp = rum_read(sc, RT2573_PHY_CSR0); 1615 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1616 if (IEEE80211_IS_CHAN_2GHZ(c)) 1617 tmp |= RT2573_PA_PE_2GHZ; 1618 else 1619 tmp |= RT2573_PA_PE_5GHZ; 1620 rum_write(sc, RT2573_PHY_CSR0, tmp); 1621} 1622 1623static void 1624rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1625{ 1626 struct ifnet *ifp = sc->sc_ifp; 1627 struct ieee80211com *ic = ifp->if_l2com; 1628 const struct rfprog *rfprog; 1629 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1630 int8_t power; 1631 int i, chan; 1632 1633 chan = ieee80211_chan2ieee(ic, c); 1634 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1635 return; 1636 1637 /* select the appropriate RF settings based on what EEPROM says */ 1638 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1639 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1640 1641 /* find the settings for this channel (we know it exists) */ 1642 for (i = 0; rfprog[i].chan != chan; i++); 1643 1644 power = sc->txpow[i]; 1645 if (power < 0) { 1646 bbp94 += power; 1647 power = 0; 1648 } else if (power > 31) { 1649 bbp94 += power - 31; 1650 power = 31; 1651 } 1652 1653 /* 1654 * If we are switching from the 2GHz band to the 5GHz band or 1655 * vice-versa, BBP registers need to be reprogrammed. 1656 */ 1657 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1658 rum_select_band(sc, c); 1659 rum_select_antenna(sc); 1660 } 1661 ic->ic_curchan = c; 1662 1663 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1664 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1665 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1666 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1667 1668 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1669 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1670 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1671 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1672 1673 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1674 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1675 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1676 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1677 1678 rum_pause(sc, hz / 100); 1679 1680 /* enable smart mode for MIMO-capable RFs */ 1681 bbp3 = rum_bbp_read(sc, 3); 1682 1683 bbp3 &= ~RT2573_SMART_MODE; 1684 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1685 bbp3 |= RT2573_SMART_MODE; 1686 1687 rum_bbp_write(sc, 3, bbp3); 1688 1689 if (bbp94 != RT2573_BBPR94_DEFAULT) 1690 rum_bbp_write(sc, 94, bbp94); 1691 1692 /* give the chip some extra time to do the switchover */ 1693 rum_pause(sc, hz / 100); 1694} 1695 1696/* 1697 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1698 * and HostAP operating modes. 1699 */ 1700static void 1701rum_enable_tsf_sync(struct rum_softc *sc) 1702{ 1703 struct ifnet *ifp = sc->sc_ifp; 1704 struct ieee80211com *ic = ifp->if_l2com; 1705 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1706 uint32_t tmp; 1707 1708 if (vap->iv_opmode != IEEE80211_M_STA) { 1709 /* 1710 * Change default 16ms TBTT adjustment to 8ms. 1711 * Must be done before enabling beacon generation. 1712 */ 1713 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1714 } 1715 1716 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1717 1718 /* set beacon interval (in 1/16ms unit) */ 1719 tmp |= vap->iv_bss->ni_intval * 16; 1720 1721 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1722 if (vap->iv_opmode == IEEE80211_M_STA) 1723 tmp |= RT2573_TSF_MODE(1); 1724 else 1725 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1726 1727 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1728} 1729 1730static void 1731rum_enable_tsf(struct rum_softc *sc) 1732{ 1733 rum_write(sc, RT2573_TXRX_CSR9, 1734 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1735 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1736} 1737 1738static void 1739rum_update_slot(struct ifnet *ifp) 1740{ 1741 struct rum_softc *sc = ifp->if_softc; 1742 struct ieee80211com *ic = ifp->if_l2com; 1743 uint8_t slottime; 1744 uint32_t tmp; 1745 1746 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1747 1748 tmp = rum_read(sc, RT2573_MAC_CSR9); 1749 tmp = (tmp & ~0xff) | slottime; 1750 rum_write(sc, RT2573_MAC_CSR9, tmp); 1751 1752 DPRINTF("setting slot time to %uus\n", slottime); 1753} 1754 1755static void 1756rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1757{ 1758 uint32_t tmp; 1759 1760 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1761 rum_write(sc, RT2573_MAC_CSR4, tmp); 1762 1763 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1764 rum_write(sc, RT2573_MAC_CSR5, tmp); 1765} 1766 1767static void 1768rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1769{ 1770 uint32_t tmp; 1771 1772 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1773 rum_write(sc, RT2573_MAC_CSR2, tmp); 1774 1775 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1776 rum_write(sc, RT2573_MAC_CSR3, tmp); 1777} 1778 1779static void 1780rum_setpromisc(struct rum_softc *sc) 1781{ 1782 struct ifnet *ifp = sc->sc_ifp; 1783 uint32_t tmp; 1784 1785 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1786 1787 tmp &= ~RT2573_DROP_NOT_TO_ME; 1788 if (!(ifp->if_flags & IFF_PROMISC)) 1789 tmp |= RT2573_DROP_NOT_TO_ME; 1790 1791 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1792 1793 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1794 "entering" : "leaving"); 1795} 1796 1797static void 1798rum_update_promisc(struct ifnet *ifp) 1799{ 1800 struct rum_softc *sc = ifp->if_softc; 1801 1802 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1803 return; 1804 1805 RUM_LOCK(sc); 1806 rum_setpromisc(sc); 1807 RUM_UNLOCK(sc); 1808} 1809 1810static const char * 1811rum_get_rf(int rev) 1812{ 1813 switch (rev) { 1814 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1815 case RT2573_RF_2528: return "RT2528"; 1816 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1817 case RT2573_RF_5226: return "RT5226"; 1818 default: return "unknown"; 1819 } 1820} 1821 1822static void 1823rum_read_eeprom(struct rum_softc *sc) 1824{ 1825 uint16_t val; 1826#ifdef RUM_DEBUG 1827 int i; 1828#endif 1829 1830 /* read MAC address */ 1831 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1832 1833 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1834 val = le16toh(val); 1835 sc->rf_rev = (val >> 11) & 0x1f; 1836 sc->hw_radio = (val >> 10) & 0x1; 1837 sc->rx_ant = (val >> 4) & 0x3; 1838 sc->tx_ant = (val >> 2) & 0x3; 1839 sc->nb_ant = val & 0x3; 1840 1841 DPRINTF("RF revision=%d\n", sc->rf_rev); 1842 1843 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1844 val = le16toh(val); 1845 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1846 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1847 1848 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1849 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1850 1851 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1852 val = le16toh(val); 1853 if ((val & 0xff) != 0xff) 1854 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1855 1856 /* Only [-10, 10] is valid */ 1857 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1858 sc->rssi_2ghz_corr = 0; 1859 1860 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1861 val = le16toh(val); 1862 if ((val & 0xff) != 0xff) 1863 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1864 1865 /* Only [-10, 10] is valid */ 1866 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1867 sc->rssi_5ghz_corr = 0; 1868 1869 if (sc->ext_2ghz_lna) 1870 sc->rssi_2ghz_corr -= 14; 1871 if (sc->ext_5ghz_lna) 1872 sc->rssi_5ghz_corr -= 14; 1873 1874 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1875 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1876 1877 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1878 val = le16toh(val); 1879 if ((val & 0xff) != 0xff) 1880 sc->rffreq = val & 0xff; 1881 1882 DPRINTF("RF freq=%d\n", sc->rffreq); 1883 1884 /* read Tx power for all a/b/g channels */ 1885 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1886 /* XXX default Tx power for 802.11a channels */ 1887 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1888#ifdef RUM_DEBUG 1889 for (i = 0; i < 14; i++) 1890 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1891#endif 1892 1893 /* read default values for BBP registers */ 1894 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1895#ifdef RUM_DEBUG 1896 for (i = 0; i < 14; i++) { 1897 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1898 continue; 1899 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1900 sc->bbp_prom[i].val); 1901 } 1902#endif 1903} 1904 1905static int 1906rum_bbp_init(struct rum_softc *sc) 1907{ 1908#define N(a) (sizeof (a) / sizeof ((a)[0])) 1909 int i, ntries; 1910 1911 /* wait for BBP to be ready */ 1912 for (ntries = 0; ntries < 100; ntries++) { 1913 const uint8_t val = rum_bbp_read(sc, 0); 1914 if (val != 0 && val != 0xff) 1915 break; 1916 if (rum_pause(sc, hz / 100)) 1917 break; 1918 } 1919 if (ntries == 100) { 1920 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1921 return EIO; 1922 } 1923 1924 /* initialize BBP registers to default values */ 1925 for (i = 0; i < N(rum_def_bbp); i++) 1926 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1927 1928 /* write vendor-specific BBP values (from EEPROM) */ 1929 for (i = 0; i < 16; i++) { 1930 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1931 continue; 1932 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1933 } 1934 1935 return 0; 1936#undef N 1937} 1938 1939static void 1940rum_init_locked(struct rum_softc *sc) 1941{ 1942#define N(a) (sizeof (a) / sizeof ((a)[0])) 1943 struct ifnet *ifp = sc->sc_ifp; 1944 struct ieee80211com *ic = ifp->if_l2com; 1945 uint32_t tmp; 1946 usb_error_t error; 1947 int i, ntries; 1948 1949 RUM_LOCK_ASSERT(sc, MA_OWNED); 1950 1951 rum_stop(sc); 1952 1953 /* initialize MAC registers to default values */ 1954 for (i = 0; i < N(rum_def_mac); i++) 1955 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1956 1957 /* set host ready */ 1958 rum_write(sc, RT2573_MAC_CSR1, 3); 1959 rum_write(sc, RT2573_MAC_CSR1, 0); 1960 1961 /* wait for BBP/RF to wakeup */ 1962 for (ntries = 0; ntries < 100; ntries++) { 1963 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1964 break; 1965 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1966 if (rum_pause(sc, hz / 100)) 1967 break; 1968 } 1969 if (ntries == 100) { 1970 device_printf(sc->sc_dev, 1971 "timeout waiting for BBP/RF to wakeup\n"); 1972 goto fail; 1973 } 1974 1975 if ((error = rum_bbp_init(sc)) != 0) 1976 goto fail; 1977 1978 /* select default channel */ 1979 rum_select_band(sc, ic->ic_curchan); 1980 rum_select_antenna(sc); 1981 rum_set_chan(sc, ic->ic_curchan); 1982 1983 /* clear STA registers */ 1984 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1985 1986 rum_set_macaddr(sc, IF_LLADDR(ifp)); 1987 1988 /* initialize ASIC */ 1989 rum_write(sc, RT2573_MAC_CSR1, 4); 1990 1991 /* 1992 * Allocate Tx and Rx xfer queues. 1993 */ 1994 rum_setup_tx_list(sc); 1995 1996 /* update Rx filter */ 1997 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 1998 1999 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2000 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2001 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2002 RT2573_DROP_ACKCTS; 2003 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2004 tmp |= RT2573_DROP_TODS; 2005 if (!(ifp->if_flags & IFF_PROMISC)) 2006 tmp |= RT2573_DROP_NOT_TO_ME; 2007 } 2008 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2009 2010 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2011 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2012 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2013 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2014 return; 2015 2016fail: rum_stop(sc); 2017#undef N 2018} 2019 2020static void 2021rum_init(void *priv) 2022{ 2023 struct rum_softc *sc = priv; 2024 struct ifnet *ifp = sc->sc_ifp; 2025 struct ieee80211com *ic = ifp->if_l2com; 2026 2027 RUM_LOCK(sc); 2028 rum_init_locked(sc); 2029 RUM_UNLOCK(sc); 2030 2031 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2032 ieee80211_start_all(ic); /* start all vap's */ 2033} 2034 2035static void 2036rum_stop(struct rum_softc *sc) 2037{ 2038 struct ifnet *ifp = sc->sc_ifp; 2039 uint32_t tmp; 2040 2041 RUM_LOCK_ASSERT(sc, MA_OWNED); 2042 2043 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2044 2045 RUM_UNLOCK(sc); 2046 2047 /* 2048 * Drain the USB transfers, if not already drained: 2049 */ 2050 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2051 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2052 2053 RUM_LOCK(sc); 2054 2055 rum_unsetup_tx_list(sc); 2056 2057 /* disable Rx */ 2058 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2059 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2060 2061 /* reset ASIC */ 2062 rum_write(sc, RT2573_MAC_CSR1, 3); 2063 rum_write(sc, RT2573_MAC_CSR1, 0); 2064} 2065 2066static void 2067rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2068{ 2069 struct usb_device_request req; 2070 uint16_t reg = RT2573_MCU_CODE_BASE; 2071 usb_error_t err; 2072 2073 /* copy firmware image into NIC */ 2074 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2075 err = rum_write(sc, reg, UGETDW(ucode)); 2076 if (err) { 2077 /* firmware already loaded ? */ 2078 device_printf(sc->sc_dev, "Firmware load " 2079 "failure! (ignored)\n"); 2080 break; 2081 } 2082 } 2083 2084 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2085 req.bRequest = RT2573_MCU_CNTL; 2086 USETW(req.wValue, RT2573_MCU_RUN); 2087 USETW(req.wIndex, 0); 2088 USETW(req.wLength, 0); 2089 2090 err = rum_do_request(sc, &req, NULL); 2091 if (err != 0) { 2092 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2093 usbd_errstr(err)); 2094 } 2095 2096 /* give the chip some time to boot */ 2097 rum_pause(sc, hz / 8); 2098} 2099 2100static int 2101rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2102{ 2103 struct ieee80211com *ic = vap->iv_ic; 2104 const struct ieee80211_txparam *tp; 2105 struct rum_tx_desc desc; 2106 struct mbuf *m0; 2107 2108 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2109 if (m0 == NULL) { 2110 return ENOBUFS; 2111 } 2112 2113 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2114 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2115 m0->m_pkthdr.len, tp->mgmtrate); 2116 2117 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2118 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2119 2120 /* copy beacon header and payload into NIC memory */ 2121 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2122 m0->m_pkthdr.len); 2123 2124 m_freem(m0); 2125 2126 return 0; 2127} 2128 2129static int 2130rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2131 const struct ieee80211_bpf_params *params) 2132{ 2133 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2134 struct rum_softc *sc = ifp->if_softc; 2135 2136 RUM_LOCK(sc); 2137 /* prevent management frames from being sent if we're not ready */ 2138 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2139 RUM_UNLOCK(sc); 2140 m_freem(m); 2141 ieee80211_free_node(ni); 2142 return ENETDOWN; 2143 } 2144 if (sc->tx_nfree < RUM_TX_MINFREE) { 2145 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2146 RUM_UNLOCK(sc); 2147 m_freem(m); 2148 ieee80211_free_node(ni); 2149 return EIO; 2150 } 2151 2152 ifp->if_opackets++; 2153 2154 if (params == NULL) { 2155 /* 2156 * Legacy path; interpret frame contents to decide 2157 * precisely how to send the frame. 2158 */ 2159 if (rum_tx_mgt(sc, m, ni) != 0) 2160 goto bad; 2161 } else { 2162 /* 2163 * Caller supplied explicit parameters to use in 2164 * sending the frame. 2165 */ 2166 if (rum_tx_raw(sc, m, ni, params) != 0) 2167 goto bad; 2168 } 2169 RUM_UNLOCK(sc); 2170 2171 return 0; 2172bad: 2173 ifp->if_oerrors++; 2174 RUM_UNLOCK(sc); 2175 ieee80211_free_node(ni); 2176 return EIO; 2177} 2178 2179static void 2180rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2181{ 2182 struct ieee80211vap *vap = ni->ni_vap; 2183 struct rum_vap *rvp = RUM_VAP(vap); 2184 2185 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2186 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2187 2188 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2189 2190 usb_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2191} 2192 2193static void 2194rum_amrr_timeout(void *arg) 2195{ 2196 struct rum_vap *rvp = arg; 2197 struct ieee80211vap *vap = &rvp->vap; 2198 struct ieee80211com *ic = vap->iv_ic; 2199 2200 ieee80211_runtask(ic, &rvp->amrr_task); 2201} 2202 2203static void 2204rum_amrr_task(void *arg, int pending) 2205{ 2206 struct rum_vap *rvp = arg; 2207 struct ieee80211vap *vap = &rvp->vap; 2208 struct ieee80211com *ic = vap->iv_ic; 2209 struct ifnet *ifp = ic->ic_ifp; 2210 struct rum_softc *sc = ifp->if_softc; 2211 struct ieee80211_node *ni = vap->iv_bss; 2212 int ok, fail; 2213 2214 RUM_LOCK(sc); 2215 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2216 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2217 2218 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2219 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2220 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2221 2222 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2223 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2224 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2225 2226 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2227 2228 usb_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2229 RUM_UNLOCK(sc); 2230} 2231 2232/* ARGUSED */ 2233static struct ieee80211_node * 2234rum_node_alloc(struct ieee80211vap *vap __unused, 2235 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2236{ 2237 struct rum_node *rn; 2238 2239 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2240 return rn != NULL ? &rn->ni : NULL; 2241} 2242 2243static void 2244rum_newassoc(struct ieee80211_node *ni, int isnew) 2245{ 2246 struct ieee80211vap *vap = ni->ni_vap; 2247 2248 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2249} 2250 2251static void 2252rum_scan_start(struct ieee80211com *ic) 2253{ 2254 struct ifnet *ifp = ic->ic_ifp; 2255 struct rum_softc *sc = ifp->if_softc; 2256 uint32_t tmp; 2257 2258 RUM_LOCK(sc); 2259 /* abort TSF synchronization */ 2260 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2261 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2262 rum_set_bssid(sc, ifp->if_broadcastaddr); 2263 RUM_UNLOCK(sc); 2264 2265} 2266 2267static void 2268rum_scan_end(struct ieee80211com *ic) 2269{ 2270 struct rum_softc *sc = ic->ic_ifp->if_softc; 2271 2272 RUM_LOCK(sc); 2273 rum_enable_tsf_sync(sc); 2274 rum_set_bssid(sc, sc->sc_bssid); 2275 RUM_UNLOCK(sc); 2276 2277} 2278 2279static void 2280rum_set_channel(struct ieee80211com *ic) 2281{ 2282 struct rum_softc *sc = ic->ic_ifp->if_softc; 2283 2284 RUM_LOCK(sc); 2285 rum_set_chan(sc, ic->ic_curchan); 2286 RUM_UNLOCK(sc); 2287} 2288 2289static int 2290rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2291{ 2292 struct ifnet *ifp = sc->sc_ifp; 2293 struct ieee80211com *ic = ifp->if_l2com; 2294 int lna, agc, rssi; 2295 2296 lna = (raw >> 5) & 0x3; 2297 agc = raw & 0x1f; 2298 2299 if (lna == 0) { 2300 /* 2301 * No RSSI mapping 2302 * 2303 * NB: Since RSSI is relative to noise floor, -1 is 2304 * adequate for caller to know error happened. 2305 */ 2306 return -1; 2307 } 2308 2309 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2310 2311 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2312 rssi += sc->rssi_2ghz_corr; 2313 2314 if (lna == 1) 2315 rssi -= 64; 2316 else if (lna == 2) 2317 rssi -= 74; 2318 else if (lna == 3) 2319 rssi -= 90; 2320 } else { 2321 rssi += sc->rssi_5ghz_corr; 2322 2323 if (!sc->ext_5ghz_lna && lna != 1) 2324 rssi += 4; 2325 2326 if (lna == 1) 2327 rssi -= 64; 2328 else if (lna == 2) 2329 rssi -= 86; 2330 else if (lna == 3) 2331 rssi -= 100; 2332 } 2333 return rssi; 2334} 2335 2336static int 2337rum_pause(struct rum_softc *sc, int timeout) 2338{ 2339 2340 usb_pause_mtx(&sc->sc_mtx, timeout); 2341 return (0); 2342} 2343 2344static device_method_t rum_methods[] = { 2345 /* Device interface */ 2346 DEVMETHOD(device_probe, rum_match), 2347 DEVMETHOD(device_attach, rum_attach), 2348 DEVMETHOD(device_detach, rum_detach), 2349 2350 { 0, 0 } 2351}; 2352 2353static driver_t rum_driver = { 2354 .name = "rum", 2355 .methods = rum_methods, 2356 .size = sizeof(struct rum_softc), 2357}; 2358 2359static devclass_t rum_devclass; 2360 2361DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2362