if_rum.c revision 196219
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 196219 2009-08-14 20:03:53Z jhb $ */ 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 196219 2009-08-14 20:03:53Z jhb $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_arp.h> 51#include <net/ethernet.h> 52#include <net/if_dl.h> 53#include <net/if_media.h> 54#include <net/if_types.h> 55 56#ifdef INET 57#include <netinet/in.h> 58#include <netinet/in_systm.h> 59#include <netinet/in_var.h> 60#include <netinet/if_ether.h> 61#include <netinet/ip.h> 62#endif 63 64#include <net80211/ieee80211_var.h> 65#include <net80211/ieee80211_regdomain.h> 66#include <net80211/ieee80211_radiotap.h> 67#include <net80211/ieee80211_amrr.h> 68 69#include <dev/usb/usb.h> 70#include <dev/usb/usbdi.h> 71#include "usbdevs.h" 72 73#define USB_DEBUG_VAR rum_debug 74#include <dev/usb/usb_debug.h> 75 76#include <dev/usb/wlan/if_rumreg.h> 77#include <dev/usb/wlan/if_rumvar.h> 78#include <dev/usb/wlan/if_rumfw.h> 79 80#if USB_DEBUG 81static int rum_debug = 0; 82 83SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 84SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 85 "Debug level"); 86#endif 87 88static const struct usb_device_id rum_devs[] = { 89 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) }, 90 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) }, 91 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3) }, 92 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4) }, 93 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700) }, 94 { USB_VP(USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO) }, 95 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1) }, 96 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2) }, 97 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A) }, 98 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3) }, 99 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC) }, 100 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR) }, 101 { USB_VP(USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2) }, 102 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL) }, 103 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX) }, 104 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F) }, 105 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573) }, 106 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1) }, 107 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340) }, 108 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111) }, 109 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110) }, 110 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS) }, 111 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS) }, 112 { USB_VP(USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573) }, 113 { USB_VP(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573) }, 114 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB) }, 115 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) }, 116 { USB_VP(USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G) }, 117 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP) }, 118 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP) }, 119 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1) }, 120 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2) }, 121 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3) }, 122 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4) }, 123 { USB_VP(USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573) }, 124 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP) }, 125 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2) }, 126 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM) }, 127 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573) }, 128 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2) }, 129 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_3) }, 130 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573) }, 131 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2) }, 132 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671) }, 133 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2) }, 134 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172) }, 135 { USB_VP(USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573) }, 136 { USB_VP(USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573) }, 137}; 138 139MODULE_DEPEND(rum, wlan, 1, 1, 1); 140MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 141MODULE_DEPEND(rum, usb, 1, 1, 1); 142 143static device_probe_t rum_match; 144static device_attach_t rum_attach; 145static device_detach_t rum_detach; 146 147static usb_callback_t rum_bulk_read_callback; 148static usb_callback_t rum_bulk_write_callback; 149 150static usb_error_t rum_do_request(struct rum_softc *sc, 151 struct usb_device_request *req, void *data); 152static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 153 const char name[IFNAMSIZ], int unit, int opmode, 154 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 155 const uint8_t mac[IEEE80211_ADDR_LEN]); 156static void rum_vap_delete(struct ieee80211vap *); 157static void rum_tx_free(struct rum_tx_data *, int); 158static void rum_setup_tx_list(struct rum_softc *); 159static void rum_unsetup_tx_list(struct rum_softc *); 160static int rum_newstate(struct ieee80211vap *, 161 enum ieee80211_state, int); 162static void rum_setup_tx_desc(struct rum_softc *, 163 struct rum_tx_desc *, uint32_t, uint16_t, int, 164 int); 165static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 166 struct ieee80211_node *); 167static int rum_tx_raw(struct rum_softc *, struct mbuf *, 168 struct ieee80211_node *, 169 const struct ieee80211_bpf_params *); 170static int rum_tx_data(struct rum_softc *, struct mbuf *, 171 struct ieee80211_node *); 172static void rum_start(struct ifnet *); 173static int rum_ioctl(struct ifnet *, u_long, caddr_t); 174static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 175 int); 176static uint32_t rum_read(struct rum_softc *, uint16_t); 177static void rum_read_multi(struct rum_softc *, uint16_t, void *, 178 int); 179static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 180static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 181 size_t); 182static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 183static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 184static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 185static void rum_select_antenna(struct rum_softc *); 186static void rum_enable_mrr(struct rum_softc *); 187static void rum_set_txpreamble(struct rum_softc *); 188static void rum_set_basicrates(struct rum_softc *); 189static void rum_select_band(struct rum_softc *, 190 struct ieee80211_channel *); 191static void rum_set_chan(struct rum_softc *, 192 struct ieee80211_channel *); 193static void rum_enable_tsf_sync(struct rum_softc *); 194static void rum_enable_tsf(struct rum_softc *); 195static void rum_update_slot(struct ifnet *); 196static void rum_set_bssid(struct rum_softc *, const uint8_t *); 197static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 198static void rum_update_promisc(struct ifnet *); 199static void rum_setpromisc(struct rum_softc *); 200static const char *rum_get_rf(int); 201static void rum_read_eeprom(struct rum_softc *); 202static int rum_bbp_init(struct rum_softc *); 203static void rum_init_locked(struct rum_softc *); 204static void rum_init(void *); 205static void rum_stop(struct rum_softc *); 206static void rum_load_microcode(struct rum_softc *, const uint8_t *, 207 size_t); 208static int rum_prepare_beacon(struct rum_softc *, 209 struct ieee80211vap *); 210static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 211 const struct ieee80211_bpf_params *); 212static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 213 const uint8_t mac[IEEE80211_ADDR_LEN]); 214static void rum_newassoc(struct ieee80211_node *, int); 215static void rum_scan_start(struct ieee80211com *); 216static void rum_scan_end(struct ieee80211com *); 217static void rum_set_channel(struct ieee80211com *); 218static int rum_get_rssi(struct rum_softc *, uint8_t); 219static void rum_amrr_start(struct rum_softc *, 220 struct ieee80211_node *); 221static void rum_amrr_timeout(void *); 222static void rum_amrr_task(void *, int); 223static int rum_pause(struct rum_softc *, int); 224 225static const struct { 226 uint32_t reg; 227 uint32_t val; 228} rum_def_mac[] = { 229 { RT2573_TXRX_CSR0, 0x025fb032 }, 230 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 231 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 232 { RT2573_TXRX_CSR3, 0x00858687 }, 233 { RT2573_TXRX_CSR7, 0x2e31353b }, 234 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 235 { RT2573_TXRX_CSR15, 0x0000000f }, 236 { RT2573_MAC_CSR6, 0x00000fff }, 237 { RT2573_MAC_CSR8, 0x016c030a }, 238 { RT2573_MAC_CSR10, 0x00000718 }, 239 { RT2573_MAC_CSR12, 0x00000004 }, 240 { RT2573_MAC_CSR13, 0x00007f00 }, 241 { RT2573_SEC_CSR0, 0x00000000 }, 242 { RT2573_SEC_CSR1, 0x00000000 }, 243 { RT2573_SEC_CSR5, 0x00000000 }, 244 { RT2573_PHY_CSR1, 0x000023b0 }, 245 { RT2573_PHY_CSR5, 0x00040a06 }, 246 { RT2573_PHY_CSR6, 0x00080606 }, 247 { RT2573_PHY_CSR7, 0x00000408 }, 248 { RT2573_AIFSN_CSR, 0x00002273 }, 249 { RT2573_CWMIN_CSR, 0x00002344 }, 250 { RT2573_CWMAX_CSR, 0x000034aa } 251}; 252 253static const struct { 254 uint8_t reg; 255 uint8_t val; 256} rum_def_bbp[] = { 257 { 3, 0x80 }, 258 { 15, 0x30 }, 259 { 17, 0x20 }, 260 { 21, 0xc8 }, 261 { 22, 0x38 }, 262 { 23, 0x06 }, 263 { 24, 0xfe }, 264 { 25, 0x0a }, 265 { 26, 0x0d }, 266 { 32, 0x0b }, 267 { 34, 0x12 }, 268 { 37, 0x07 }, 269 { 39, 0xf8 }, 270 { 41, 0x60 }, 271 { 53, 0x10 }, 272 { 54, 0x18 }, 273 { 60, 0x10 }, 274 { 61, 0x04 }, 275 { 62, 0x04 }, 276 { 75, 0xfe }, 277 { 86, 0xfe }, 278 { 88, 0xfe }, 279 { 90, 0x0f }, 280 { 99, 0x00 }, 281 { 102, 0x16 }, 282 { 107, 0x04 } 283}; 284 285static const struct rfprog { 286 uint8_t chan; 287 uint32_t r1, r2, r3, r4; 288} rum_rf5226[] = { 289 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 290 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 291 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 292 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 293 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 294 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 295 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 296 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 297 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 298 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 299 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 300 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 301 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 302 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 303 304 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 305 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 306 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 307 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 308 309 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 310 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 311 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 312 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 313 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 314 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 315 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 316 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 317 318 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 319 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 320 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 321 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 322 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 323 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 324 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 325 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 326 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 327 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 328 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 329 330 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 331 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 332 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 333 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 334 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 335}, rum_rf5225[] = { 336 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 337 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 338 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 339 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 340 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 341 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 342 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 343 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 344 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 345 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 346 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 347 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 348 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 349 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 350 351 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 352 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 353 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 354 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 355 356 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 357 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 358 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 359 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 360 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 361 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 362 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 363 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 364 365 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 366 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 367 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 368 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 369 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 370 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 371 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 372 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 373 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 374 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 375 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 376 377 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 378 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 379 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 380 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 381 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 382}; 383 384static const struct usb_config rum_config[RUM_N_TRANSFER] = { 385 [RUM_BULK_WR] = { 386 .type = UE_BULK, 387 .endpoint = UE_ADDR_ANY, 388 .direction = UE_DIR_OUT, 389 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 390 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 391 .callback = rum_bulk_write_callback, 392 .timeout = 5000, /* ms */ 393 }, 394 [RUM_BULK_RD] = { 395 .type = UE_BULK, 396 .endpoint = UE_ADDR_ANY, 397 .direction = UE_DIR_IN, 398 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 399 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 400 .callback = rum_bulk_read_callback, 401 }, 402}; 403 404static int 405rum_match(device_t self) 406{ 407 struct usb_attach_arg *uaa = device_get_ivars(self); 408 409 if (uaa->usb_mode != USB_MODE_HOST) 410 return (ENXIO); 411 if (uaa->info.bConfigIndex != 0) 412 return (ENXIO); 413 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 414 return (ENXIO); 415 416 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 417} 418 419static int 420rum_attach(device_t self) 421{ 422 struct usb_attach_arg *uaa = device_get_ivars(self); 423 struct rum_softc *sc = device_get_softc(self); 424 struct ieee80211com *ic; 425 struct ifnet *ifp; 426 uint8_t iface_index, bands; 427 uint32_t tmp; 428 int error, ntries; 429 430 device_set_usb_desc(self); 431 sc->sc_udev = uaa->device; 432 sc->sc_dev = self; 433 434 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 435 MTX_NETWORK_LOCK, MTX_DEF); 436 437 iface_index = RT2573_IFACE_INDEX; 438 error = usbd_transfer_setup(uaa->device, &iface_index, 439 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 440 if (error) { 441 device_printf(self, "could not allocate USB transfers, " 442 "err=%s\n", usbd_errstr(error)); 443 goto detach; 444 } 445 446 RUM_LOCK(sc); 447 /* retrieve RT2573 rev. no */ 448 for (ntries = 0; ntries < 100; ntries++) { 449 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 450 break; 451 if (rum_pause(sc, hz / 100)) 452 break; 453 } 454 if (ntries == 100) { 455 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 456 RUM_UNLOCK(sc); 457 goto detach; 458 } 459 460 /* retrieve MAC address and various other things from EEPROM */ 461 rum_read_eeprom(sc); 462 463 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 464 tmp, rum_get_rf(sc->rf_rev)); 465 466 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 467 RUM_UNLOCK(sc); 468 469 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 470 if (ifp == NULL) { 471 device_printf(sc->sc_dev, "can not if_alloc()\n"); 472 goto detach; 473 } 474 ic = ifp->if_l2com; 475 476 ifp->if_softc = sc; 477 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 478 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 479 ifp->if_init = rum_init; 480 ifp->if_ioctl = rum_ioctl; 481 ifp->if_start = rum_start; 482 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 483 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 484 IFQ_SET_READY(&ifp->if_snd); 485 486 ic->ic_ifp = ifp; 487 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 488 489 /* set device capabilities */ 490 ic->ic_caps = 491 IEEE80211_C_STA /* station mode supported */ 492 | IEEE80211_C_IBSS /* IBSS mode supported */ 493 | IEEE80211_C_MONITOR /* monitor mode supported */ 494 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 495 | IEEE80211_C_TXPMGT /* tx power management */ 496 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 497 | IEEE80211_C_SHSLOT /* short slot time supported */ 498 | IEEE80211_C_BGSCAN /* bg scanning supported */ 499 | IEEE80211_C_WPA /* 802.11i */ 500 ; 501 502 bands = 0; 503 setbit(&bands, IEEE80211_MODE_11B); 504 setbit(&bands, IEEE80211_MODE_11G); 505 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 506 setbit(&bands, IEEE80211_MODE_11A); 507 ieee80211_init_channels(ic, NULL, &bands); 508 509 ieee80211_ifattach(ic, sc->sc_bssid); 510 ic->ic_update_promisc = rum_update_promisc; 511 ic->ic_newassoc = rum_newassoc; 512 ic->ic_raw_xmit = rum_raw_xmit; 513 ic->ic_node_alloc = rum_node_alloc; 514 ic->ic_scan_start = rum_scan_start; 515 ic->ic_scan_end = rum_scan_end; 516 ic->ic_set_channel = rum_set_channel; 517 518 ic->ic_vap_create = rum_vap_create; 519 ic->ic_vap_delete = rum_vap_delete; 520 521 ieee80211_radiotap_attach(ic, 522 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 523 RT2573_TX_RADIOTAP_PRESENT, 524 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 525 RT2573_RX_RADIOTAP_PRESENT); 526 527 if (bootverbose) 528 ieee80211_announce(ic); 529 530 return (0); 531 532detach: 533 rum_detach(self); 534 return (ENXIO); /* failure */ 535} 536 537static int 538rum_detach(device_t self) 539{ 540 struct rum_softc *sc = device_get_softc(self); 541 struct ifnet *ifp = sc->sc_ifp; 542 struct ieee80211com *ic; 543 544 /* stop all USB transfers */ 545 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 546 547 /* free TX list, if any */ 548 RUM_LOCK(sc); 549 rum_unsetup_tx_list(sc); 550 RUM_UNLOCK(sc); 551 552 if (ifp) { 553 ic = ifp->if_l2com; 554 ieee80211_ifdetach(ic); 555 if_free(ifp); 556 } 557 mtx_destroy(&sc->sc_mtx); 558 559 return (0); 560} 561 562static usb_error_t 563rum_do_request(struct rum_softc *sc, 564 struct usb_device_request *req, void *data) 565{ 566 usb_error_t err; 567 int ntries = 10; 568 569 while (ntries--) { 570 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 571 req, data, 0, NULL, 250 /* ms */); 572 if (err == 0) 573 break; 574 575 DPRINTFN(1, "Control request failed, %s (retrying)\n", 576 usbd_errstr(err)); 577 if (rum_pause(sc, hz / 100)) 578 break; 579 } 580 return (err); 581} 582 583static struct ieee80211vap * 584rum_vap_create(struct ieee80211com *ic, 585 const char name[IFNAMSIZ], int unit, int opmode, int flags, 586 const uint8_t bssid[IEEE80211_ADDR_LEN], 587 const uint8_t mac[IEEE80211_ADDR_LEN]) 588{ 589 struct rum_softc *sc = ic->ic_ifp->if_softc; 590 struct rum_vap *rvp; 591 struct ieee80211vap *vap; 592 593 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 594 return NULL; 595 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 596 M_80211_VAP, M_NOWAIT | M_ZERO); 597 if (rvp == NULL) 598 return NULL; 599 vap = &rvp->vap; 600 /* enable s/w bmiss handling for sta mode */ 601 ieee80211_vap_setup(ic, vap, name, unit, opmode, 602 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 603 604 /* override state transition machine */ 605 rvp->newstate = vap->iv_newstate; 606 vap->iv_newstate = rum_newstate; 607 608 usb_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 609 TASK_INIT(&rvp->amrr_task, 0, rum_amrr_task, rvp); 610 ieee80211_amrr_init(&rvp->amrr, vap, 611 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 612 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 613 1000 /* 1 sec */); 614 615 /* complete setup */ 616 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 617 ic->ic_opmode = opmode; 618 return vap; 619} 620 621static void 622rum_vap_delete(struct ieee80211vap *vap) 623{ 624 struct rum_vap *rvp = RUM_VAP(vap); 625 struct ieee80211com *ic = vap->iv_ic; 626 627 usb_callout_drain(&rvp->amrr_ch); 628 ieee80211_draintask(ic, &rvp->amrr_task); 629 ieee80211_amrr_cleanup(&rvp->amrr); 630 ieee80211_vap_detach(vap); 631 free(rvp, M_80211_VAP); 632} 633 634static void 635rum_tx_free(struct rum_tx_data *data, int txerr) 636{ 637 struct rum_softc *sc = data->sc; 638 639 if (data->m != NULL) { 640 if (data->m->m_flags & M_TXCB) 641 ieee80211_process_callback(data->ni, data->m, 642 txerr ? ETIMEDOUT : 0); 643 m_freem(data->m); 644 data->m = NULL; 645 646 ieee80211_free_node(data->ni); 647 data->ni = NULL; 648 } 649 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 650 sc->tx_nfree++; 651} 652 653static void 654rum_setup_tx_list(struct rum_softc *sc) 655{ 656 struct rum_tx_data *data; 657 int i; 658 659 sc->tx_nfree = 0; 660 STAILQ_INIT(&sc->tx_q); 661 STAILQ_INIT(&sc->tx_free); 662 663 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 664 data = &sc->tx_data[i]; 665 666 data->sc = sc; 667 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 668 sc->tx_nfree++; 669 } 670} 671 672static void 673rum_unsetup_tx_list(struct rum_softc *sc) 674{ 675 struct rum_tx_data *data; 676 int i; 677 678 /* make sure any subsequent use of the queues will fail */ 679 sc->tx_nfree = 0; 680 STAILQ_INIT(&sc->tx_q); 681 STAILQ_INIT(&sc->tx_free); 682 683 /* free up all node references and mbufs */ 684 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 685 data = &sc->tx_data[i]; 686 687 if (data->m != NULL) { 688 m_freem(data->m); 689 data->m = NULL; 690 } 691 if (data->ni != NULL) { 692 ieee80211_free_node(data->ni); 693 data->ni = NULL; 694 } 695 } 696} 697 698static int 699rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 700{ 701 struct rum_vap *rvp = RUM_VAP(vap); 702 struct ieee80211com *ic = vap->iv_ic; 703 struct rum_softc *sc = ic->ic_ifp->if_softc; 704 const struct ieee80211_txparam *tp; 705 enum ieee80211_state ostate; 706 struct ieee80211_node *ni; 707 uint32_t tmp; 708 709 ostate = vap->iv_state; 710 DPRINTF("%s -> %s\n", 711 ieee80211_state_name[ostate], 712 ieee80211_state_name[nstate]); 713 714 IEEE80211_UNLOCK(ic); 715 RUM_LOCK(sc); 716 usb_callout_stop(&rvp->amrr_ch); 717 718 switch (nstate) { 719 case IEEE80211_S_INIT: 720 if (ostate == IEEE80211_S_RUN) { 721 /* abort TSF synchronization */ 722 tmp = rum_read(sc, RT2573_TXRX_CSR9); 723 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 724 } 725 break; 726 727 case IEEE80211_S_RUN: 728 ni = vap->iv_bss; 729 730 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 731 rum_update_slot(ic->ic_ifp); 732 rum_enable_mrr(sc); 733 rum_set_txpreamble(sc); 734 rum_set_basicrates(sc); 735 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 736 rum_set_bssid(sc, sc->sc_bssid); 737 } 738 739 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 740 vap->iv_opmode == IEEE80211_M_IBSS) 741 rum_prepare_beacon(sc, vap); 742 743 if (vap->iv_opmode != IEEE80211_M_MONITOR) 744 rum_enable_tsf_sync(sc); 745 else 746 rum_enable_tsf(sc); 747 748 /* enable automatic rate adaptation */ 749 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 750 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 751 rum_amrr_start(sc, ni); 752 break; 753 default: 754 break; 755 } 756 RUM_UNLOCK(sc); 757 IEEE80211_LOCK(ic); 758 return (rvp->newstate(vap, nstate, arg)); 759} 760 761static void 762rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 763{ 764 struct rum_softc *sc = usbd_xfer_softc(xfer); 765 struct ifnet *ifp = sc->sc_ifp; 766 struct ieee80211vap *vap; 767 struct rum_tx_data *data; 768 struct mbuf *m; 769 struct usb_page_cache *pc; 770 unsigned int len; 771 int actlen, sumlen; 772 773 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 774 775 switch (USB_GET_STATE(xfer)) { 776 case USB_ST_TRANSFERRED: 777 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 778 779 /* free resources */ 780 data = usbd_xfer_get_priv(xfer); 781 rum_tx_free(data, 0); 782 usbd_xfer_set_priv(xfer, NULL); 783 784 ifp->if_opackets++; 785 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 786 787 /* FALLTHROUGH */ 788 case USB_ST_SETUP: 789tr_setup: 790 data = STAILQ_FIRST(&sc->tx_q); 791 if (data) { 792 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 793 m = data->m; 794 795 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 796 DPRINTFN(0, "data overflow, %u bytes\n", 797 m->m_pkthdr.len); 798 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 799 } 800 pc = usbd_xfer_get_frame(xfer, 0); 801 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 802 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 803 m->m_pkthdr.len); 804 805 vap = data->ni->ni_vap; 806 if (ieee80211_radiotap_active_vap(vap)) { 807 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 808 809 tap->wt_flags = 0; 810 tap->wt_rate = data->rate; 811 tap->wt_antenna = sc->tx_ant; 812 813 ieee80211_radiotap_tx(vap, m); 814 } 815 816 /* align end on a 4-bytes boundary */ 817 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 818 if ((len % 64) == 0) 819 len += 4; 820 821 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 822 m->m_pkthdr.len, len); 823 824 usbd_xfer_set_frame_len(xfer, 0, len); 825 usbd_xfer_set_priv(xfer, data); 826 827 usbd_transfer_submit(xfer); 828 } 829 break; 830 831 default: /* Error */ 832 DPRINTFN(11, "transfer error, %s\n", 833 usbd_errstr(error)); 834 835 ifp->if_oerrors++; 836 data = usbd_xfer_get_priv(xfer); 837 if (data != NULL) { 838 rum_tx_free(data, error); 839 usbd_xfer_set_priv(xfer, NULL); 840 } 841 842 if (error == USB_ERR_STALLED) { 843 /* try to clear stall first */ 844 usbd_xfer_set_stall(xfer); 845 goto tr_setup; 846 } 847 if (error == USB_ERR_TIMEOUT) 848 device_printf(sc->sc_dev, "device timeout\n"); 849 break; 850 } 851} 852 853static void 854rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 855{ 856 struct rum_softc *sc = usbd_xfer_softc(xfer); 857 struct ifnet *ifp = sc->sc_ifp; 858 struct ieee80211com *ic = ifp->if_l2com; 859 struct ieee80211_node *ni; 860 struct mbuf *m = NULL; 861 struct usb_page_cache *pc; 862 uint32_t flags; 863 uint8_t rssi = 0; 864 int len; 865 866 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 867 868 switch (USB_GET_STATE(xfer)) { 869 case USB_ST_TRANSFERRED: 870 871 DPRINTFN(15, "rx done, actlen=%d\n", len); 872 873 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 874 DPRINTF("%s: xfer too short %d\n", 875 device_get_nameunit(sc->sc_dev), len); 876 ifp->if_ierrors++; 877 goto tr_setup; 878 } 879 880 len -= RT2573_RX_DESC_SIZE; 881 pc = usbd_xfer_get_frame(xfer, 0); 882 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 883 884 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 885 flags = le32toh(sc->sc_rx_desc.flags); 886 if (flags & RT2573_RX_CRC_ERROR) { 887 /* 888 * This should not happen since we did not 889 * request to receive those frames when we 890 * filled RUM_TXRX_CSR2: 891 */ 892 DPRINTFN(5, "PHY or CRC error\n"); 893 ifp->if_ierrors++; 894 goto tr_setup; 895 } 896 897 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 898 if (m == NULL) { 899 DPRINTF("could not allocate mbuf\n"); 900 ifp->if_ierrors++; 901 goto tr_setup; 902 } 903 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 904 mtod(m, uint8_t *), len); 905 906 /* finalize mbuf */ 907 m->m_pkthdr.rcvif = ifp; 908 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 909 910 if (ieee80211_radiotap_active(ic)) { 911 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 912 913 /* XXX read tsf */ 914 tap->wr_flags = 0; 915 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 916 (flags & RT2573_RX_OFDM) ? 917 IEEE80211_T_OFDM : IEEE80211_T_CCK); 918 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 919 tap->wr_antnoise = RT2573_NOISE_FLOOR; 920 tap->wr_antenna = sc->rx_ant; 921 } 922 /* FALLTHROUGH */ 923 case USB_ST_SETUP: 924tr_setup: 925 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 926 usbd_transfer_submit(xfer); 927 928 /* 929 * At the end of a USB callback it is always safe to unlock 930 * the private mutex of a device! That is why we do the 931 * "ieee80211_input" here, and not some lines up! 932 */ 933 if (m) { 934 RUM_UNLOCK(sc); 935 ni = ieee80211_find_rxnode(ic, 936 mtod(m, struct ieee80211_frame_min *)); 937 if (ni != NULL) { 938 (void) ieee80211_input(ni, m, rssi, 939 RT2573_NOISE_FLOOR); 940 ieee80211_free_node(ni); 941 } else 942 (void) ieee80211_input_all(ic, m, rssi, 943 RT2573_NOISE_FLOOR); 944 RUM_LOCK(sc); 945 } 946 return; 947 948 default: /* Error */ 949 if (error != USB_ERR_CANCELLED) { 950 /* try to clear stall first */ 951 usbd_xfer_set_stall(xfer); 952 goto tr_setup; 953 } 954 return; 955 } 956} 957 958static uint8_t 959rum_plcp_signal(int rate) 960{ 961 switch (rate) { 962 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 963 case 12: return 0xb; 964 case 18: return 0xf; 965 case 24: return 0xa; 966 case 36: return 0xe; 967 case 48: return 0x9; 968 case 72: return 0xd; 969 case 96: return 0x8; 970 case 108: return 0xc; 971 972 /* CCK rates (NB: not IEEE std, device-specific) */ 973 case 2: return 0x0; 974 case 4: return 0x1; 975 case 11: return 0x2; 976 case 22: return 0x3; 977 } 978 return 0xff; /* XXX unsupported/unknown rate */ 979} 980 981static void 982rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 983 uint32_t flags, uint16_t xflags, int len, int rate) 984{ 985 struct ifnet *ifp = sc->sc_ifp; 986 struct ieee80211com *ic = ifp->if_l2com; 987 uint16_t plcp_length; 988 int remainder; 989 990 desc->flags = htole32(flags); 991 desc->flags |= htole32(RT2573_TX_VALID); 992 desc->flags |= htole32(len << 16); 993 994 desc->xflags = htole16(xflags); 995 996 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 997 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 998 999 /* setup PLCP fields */ 1000 desc->plcp_signal = rum_plcp_signal(rate); 1001 desc->plcp_service = 4; 1002 1003 len += IEEE80211_CRC_LEN; 1004 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1005 desc->flags |= htole32(RT2573_TX_OFDM); 1006 1007 plcp_length = len & 0xfff; 1008 desc->plcp_length_hi = plcp_length >> 6; 1009 desc->plcp_length_lo = plcp_length & 0x3f; 1010 } else { 1011 plcp_length = (16 * len + rate - 1) / rate; 1012 if (rate == 22) { 1013 remainder = (16 * len) % 22; 1014 if (remainder != 0 && remainder < 7) 1015 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1016 } 1017 desc->plcp_length_hi = plcp_length >> 8; 1018 desc->plcp_length_lo = plcp_length & 0xff; 1019 1020 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1021 desc->plcp_signal |= 0x08; 1022 } 1023} 1024 1025static int 1026rum_sendprot(struct rum_softc *sc, 1027 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1028{ 1029 struct ieee80211com *ic = ni->ni_ic; 1030 const struct ieee80211_frame *wh; 1031 struct rum_tx_data *data; 1032 struct mbuf *mprot; 1033 int protrate, ackrate, pktlen, flags, isshort; 1034 uint16_t dur; 1035 1036 RUM_LOCK_ASSERT(sc, MA_OWNED); 1037 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1038 ("protection %d", prot)); 1039 1040 wh = mtod(m, const struct ieee80211_frame *); 1041 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1042 1043 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1044 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1045 1046 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1047 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort); 1048 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1049 flags = RT2573_TX_MORE_FRAG; 1050 if (prot == IEEE80211_PROT_RTSCTS) { 1051 /* NB: CTS is the same size as an ACK */ 1052 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1053 flags |= RT2573_TX_NEED_ACK; 1054 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1055 } else { 1056 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1057 } 1058 if (mprot == NULL) { 1059 /* XXX stat + msg */ 1060 return (ENOBUFS); 1061 } 1062 data = STAILQ_FIRST(&sc->tx_free); 1063 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1064 sc->tx_nfree--; 1065 1066 data->m = mprot; 1067 data->ni = ieee80211_ref_node(ni); 1068 data->rate = protrate; 1069 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1070 1071 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1072 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1073 1074 return 0; 1075} 1076 1077static int 1078rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1079{ 1080 struct ieee80211vap *vap = ni->ni_vap; 1081 struct ifnet *ifp = sc->sc_ifp; 1082 struct ieee80211com *ic = ifp->if_l2com; 1083 struct rum_tx_data *data; 1084 struct ieee80211_frame *wh; 1085 const struct ieee80211_txparam *tp; 1086 struct ieee80211_key *k; 1087 uint32_t flags = 0; 1088 uint16_t dur; 1089 1090 RUM_LOCK_ASSERT(sc, MA_OWNED); 1091 1092 data = STAILQ_FIRST(&sc->tx_free); 1093 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1094 sc->tx_nfree--; 1095 1096 wh = mtod(m0, struct ieee80211_frame *); 1097 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1098 k = ieee80211_crypto_encap(ni, m0); 1099 if (k == NULL) { 1100 m_freem(m0); 1101 return ENOBUFS; 1102 } 1103 wh = mtod(m0, struct ieee80211_frame *); 1104 } 1105 1106 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1107 1108 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1109 flags |= RT2573_TX_NEED_ACK; 1110 1111 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1112 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1113 *(uint16_t *)wh->i_dur = htole16(dur); 1114 1115 /* tell hardware to add timestamp for probe responses */ 1116 if ((wh->i_fc[0] & 1117 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1118 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1119 flags |= RT2573_TX_TIMESTAMP; 1120 } 1121 1122 data->m = m0; 1123 data->ni = ni; 1124 data->rate = tp->mgmtrate; 1125 1126 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1127 1128 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1129 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1130 1131 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1132 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1133 1134 return (0); 1135} 1136 1137static int 1138rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1139 const struct ieee80211_bpf_params *params) 1140{ 1141 struct ieee80211com *ic = ni->ni_ic; 1142 struct rum_tx_data *data; 1143 uint32_t flags; 1144 int rate, error; 1145 1146 RUM_LOCK_ASSERT(sc, MA_OWNED); 1147 KASSERT(params != NULL, ("no raw xmit params")); 1148 1149 rate = params->ibp_rate0; 1150 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1151 m_freem(m0); 1152 return EINVAL; 1153 } 1154 flags = 0; 1155 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1156 flags |= RT2573_TX_NEED_ACK; 1157 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1158 error = rum_sendprot(sc, m0, ni, 1159 params->ibp_flags & IEEE80211_BPF_RTS ? 1160 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1161 rate); 1162 if (error || sc->tx_nfree == 0) { 1163 m_freem(m0); 1164 return ENOBUFS; 1165 } 1166 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1167 } 1168 1169 data = STAILQ_FIRST(&sc->tx_free); 1170 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1171 sc->tx_nfree--; 1172 1173 data->m = m0; 1174 data->ni = ni; 1175 data->rate = rate; 1176 1177 /* XXX need to setup descriptor ourself */ 1178 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1179 1180 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1181 m0->m_pkthdr.len, rate); 1182 1183 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1184 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1185 1186 return 0; 1187} 1188 1189static int 1190rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1191{ 1192 struct ieee80211vap *vap = ni->ni_vap; 1193 struct ifnet *ifp = sc->sc_ifp; 1194 struct ieee80211com *ic = ifp->if_l2com; 1195 struct rum_tx_data *data; 1196 struct ieee80211_frame *wh; 1197 const struct ieee80211_txparam *tp; 1198 struct ieee80211_key *k; 1199 uint32_t flags = 0; 1200 uint16_t dur; 1201 int error, rate; 1202 1203 RUM_LOCK_ASSERT(sc, MA_OWNED); 1204 1205 wh = mtod(m0, struct ieee80211_frame *); 1206 1207 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1208 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1209 rate = tp->mcastrate; 1210 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1211 rate = tp->ucastrate; 1212 else 1213 rate = ni->ni_txrate; 1214 1215 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1216 k = ieee80211_crypto_encap(ni, m0); 1217 if (k == NULL) { 1218 m_freem(m0); 1219 return ENOBUFS; 1220 } 1221 1222 /* packet header may have moved, reset our local pointer */ 1223 wh = mtod(m0, struct ieee80211_frame *); 1224 } 1225 1226 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1227 int prot = IEEE80211_PROT_NONE; 1228 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1229 prot = IEEE80211_PROT_RTSCTS; 1230 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1231 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1232 prot = ic->ic_protmode; 1233 if (prot != IEEE80211_PROT_NONE) { 1234 error = rum_sendprot(sc, m0, ni, prot, rate); 1235 if (error || sc->tx_nfree == 0) { 1236 m_freem(m0); 1237 return ENOBUFS; 1238 } 1239 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1240 } 1241 } 1242 1243 data = STAILQ_FIRST(&sc->tx_free); 1244 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1245 sc->tx_nfree--; 1246 1247 data->m = m0; 1248 data->ni = ni; 1249 data->rate = rate; 1250 1251 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1252 flags |= RT2573_TX_NEED_ACK; 1253 flags |= RT2573_TX_MORE_FRAG; 1254 1255 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1256 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1257 *(uint16_t *)wh->i_dur = htole16(dur); 1258 } 1259 1260 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1261 1262 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1263 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1264 1265 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1266 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1267 1268 return 0; 1269} 1270 1271static void 1272rum_start(struct ifnet *ifp) 1273{ 1274 struct rum_softc *sc = ifp->if_softc; 1275 struct ieee80211_node *ni; 1276 struct mbuf *m; 1277 1278 RUM_LOCK(sc); 1279 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1280 RUM_UNLOCK(sc); 1281 return; 1282 } 1283 for (;;) { 1284 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1285 if (m == NULL) 1286 break; 1287 if (sc->tx_nfree < RUM_TX_MINFREE) { 1288 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1289 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1290 break; 1291 } 1292 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1293 if (rum_tx_data(sc, m, ni) != 0) { 1294 ieee80211_free_node(ni); 1295 ifp->if_oerrors++; 1296 break; 1297 } 1298 } 1299 RUM_UNLOCK(sc); 1300} 1301 1302static int 1303rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1304{ 1305 struct rum_softc *sc = ifp->if_softc; 1306 struct ieee80211com *ic = ifp->if_l2com; 1307 struct ifreq *ifr = (struct ifreq *) data; 1308 int error = 0, startall = 0; 1309 1310 switch (cmd) { 1311 case SIOCSIFFLAGS: 1312 RUM_LOCK(sc); 1313 if (ifp->if_flags & IFF_UP) { 1314 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1315 rum_init_locked(sc); 1316 startall = 1; 1317 } else 1318 rum_setpromisc(sc); 1319 } else { 1320 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1321 rum_stop(sc); 1322 } 1323 RUM_UNLOCK(sc); 1324 if (startall) 1325 ieee80211_start_all(ic); 1326 break; 1327 case SIOCGIFMEDIA: 1328 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1329 break; 1330 case SIOCGIFADDR: 1331 error = ether_ioctl(ifp, cmd, data); 1332 break; 1333 default: 1334 error = EINVAL; 1335 break; 1336 } 1337 return error; 1338} 1339 1340static void 1341rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1342{ 1343 struct usb_device_request req; 1344 usb_error_t error; 1345 1346 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1347 req.bRequest = RT2573_READ_EEPROM; 1348 USETW(req.wValue, 0); 1349 USETW(req.wIndex, addr); 1350 USETW(req.wLength, len); 1351 1352 error = rum_do_request(sc, &req, buf); 1353 if (error != 0) { 1354 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1355 usbd_errstr(error)); 1356 } 1357} 1358 1359static uint32_t 1360rum_read(struct rum_softc *sc, uint16_t reg) 1361{ 1362 uint32_t val; 1363 1364 rum_read_multi(sc, reg, &val, sizeof val); 1365 1366 return le32toh(val); 1367} 1368 1369static void 1370rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1371{ 1372 struct usb_device_request req; 1373 usb_error_t error; 1374 1375 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1376 req.bRequest = RT2573_READ_MULTI_MAC; 1377 USETW(req.wValue, 0); 1378 USETW(req.wIndex, reg); 1379 USETW(req.wLength, len); 1380 1381 error = rum_do_request(sc, &req, buf); 1382 if (error != 0) { 1383 device_printf(sc->sc_dev, 1384 "could not multi read MAC register: %s\n", 1385 usbd_errstr(error)); 1386 } 1387} 1388 1389static usb_error_t 1390rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1391{ 1392 uint32_t tmp = htole32(val); 1393 1394 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1395} 1396 1397static usb_error_t 1398rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1399{ 1400 struct usb_device_request req; 1401 usb_error_t error; 1402 1403 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1404 req.bRequest = RT2573_WRITE_MULTI_MAC; 1405 USETW(req.wValue, 0); 1406 USETW(req.wIndex, reg); 1407 USETW(req.wLength, len); 1408 1409 error = rum_do_request(sc, &req, buf); 1410 if (error != 0) { 1411 device_printf(sc->sc_dev, 1412 "could not multi write MAC register: %s\n", 1413 usbd_errstr(error)); 1414 } 1415 return (error); 1416} 1417 1418static void 1419rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1420{ 1421 uint32_t tmp; 1422 int ntries; 1423 1424 DPRINTFN(2, "reg=0x%08x\n", reg); 1425 1426 for (ntries = 0; ntries < 100; ntries++) { 1427 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1428 break; 1429 if (rum_pause(sc, hz / 100)) 1430 break; 1431 } 1432 if (ntries == 100) { 1433 device_printf(sc->sc_dev, "could not write to BBP\n"); 1434 return; 1435 } 1436 1437 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1438 rum_write(sc, RT2573_PHY_CSR3, tmp); 1439} 1440 1441static uint8_t 1442rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1443{ 1444 uint32_t val; 1445 int ntries; 1446 1447 DPRINTFN(2, "reg=0x%08x\n", reg); 1448 1449 for (ntries = 0; ntries < 100; ntries++) { 1450 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1451 break; 1452 if (rum_pause(sc, hz / 100)) 1453 break; 1454 } 1455 if (ntries == 100) { 1456 device_printf(sc->sc_dev, "could not read BBP\n"); 1457 return 0; 1458 } 1459 1460 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1461 rum_write(sc, RT2573_PHY_CSR3, val); 1462 1463 for (ntries = 0; ntries < 100; ntries++) { 1464 val = rum_read(sc, RT2573_PHY_CSR3); 1465 if (!(val & RT2573_BBP_BUSY)) 1466 return val & 0xff; 1467 if (rum_pause(sc, hz / 100)) 1468 break; 1469 } 1470 1471 device_printf(sc->sc_dev, "could not read BBP\n"); 1472 return 0; 1473} 1474 1475static void 1476rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1477{ 1478 uint32_t tmp; 1479 int ntries; 1480 1481 for (ntries = 0; ntries < 100; ntries++) { 1482 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1483 break; 1484 if (rum_pause(sc, hz / 100)) 1485 break; 1486 } 1487 if (ntries == 100) { 1488 device_printf(sc->sc_dev, "could not write to RF\n"); 1489 return; 1490 } 1491 1492 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1493 (reg & 3); 1494 rum_write(sc, RT2573_PHY_CSR4, tmp); 1495 1496 /* remember last written value in sc */ 1497 sc->rf_regs[reg] = val; 1498 1499 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1500} 1501 1502static void 1503rum_select_antenna(struct rum_softc *sc) 1504{ 1505 uint8_t bbp4, bbp77; 1506 uint32_t tmp; 1507 1508 bbp4 = rum_bbp_read(sc, 4); 1509 bbp77 = rum_bbp_read(sc, 77); 1510 1511 /* TBD */ 1512 1513 /* make sure Rx is disabled before switching antenna */ 1514 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1515 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1516 1517 rum_bbp_write(sc, 4, bbp4); 1518 rum_bbp_write(sc, 77, bbp77); 1519 1520 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1521} 1522 1523/* 1524 * Enable multi-rate retries for frames sent at OFDM rates. 1525 * In 802.11b/g mode, allow fallback to CCK rates. 1526 */ 1527static void 1528rum_enable_mrr(struct rum_softc *sc) 1529{ 1530 struct ifnet *ifp = sc->sc_ifp; 1531 struct ieee80211com *ic = ifp->if_l2com; 1532 uint32_t tmp; 1533 1534 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1535 1536 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1537 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1538 tmp |= RT2573_MRR_CCK_FALLBACK; 1539 tmp |= RT2573_MRR_ENABLED; 1540 1541 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1542} 1543 1544static void 1545rum_set_txpreamble(struct rum_softc *sc) 1546{ 1547 struct ifnet *ifp = sc->sc_ifp; 1548 struct ieee80211com *ic = ifp->if_l2com; 1549 uint32_t tmp; 1550 1551 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1552 1553 tmp &= ~RT2573_SHORT_PREAMBLE; 1554 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1555 tmp |= RT2573_SHORT_PREAMBLE; 1556 1557 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1558} 1559 1560static void 1561rum_set_basicrates(struct rum_softc *sc) 1562{ 1563 struct ifnet *ifp = sc->sc_ifp; 1564 struct ieee80211com *ic = ifp->if_l2com; 1565 1566 /* update basic rate set */ 1567 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1568 /* 11b basic rates: 1, 2Mbps */ 1569 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1570 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1571 /* 11a basic rates: 6, 12, 24Mbps */ 1572 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1573 } else { 1574 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1575 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1576 } 1577} 1578 1579/* 1580 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1581 * driver. 1582 */ 1583static void 1584rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1585{ 1586 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1587 uint32_t tmp; 1588 1589 /* update all BBP registers that depend on the band */ 1590 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1591 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1592 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1593 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1594 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1595 } 1596 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1597 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1598 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1599 } 1600 1601 sc->bbp17 = bbp17; 1602 rum_bbp_write(sc, 17, bbp17); 1603 rum_bbp_write(sc, 96, bbp96); 1604 rum_bbp_write(sc, 104, bbp104); 1605 1606 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1607 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1608 rum_bbp_write(sc, 75, 0x80); 1609 rum_bbp_write(sc, 86, 0x80); 1610 rum_bbp_write(sc, 88, 0x80); 1611 } 1612 1613 rum_bbp_write(sc, 35, bbp35); 1614 rum_bbp_write(sc, 97, bbp97); 1615 rum_bbp_write(sc, 98, bbp98); 1616 1617 tmp = rum_read(sc, RT2573_PHY_CSR0); 1618 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1619 if (IEEE80211_IS_CHAN_2GHZ(c)) 1620 tmp |= RT2573_PA_PE_2GHZ; 1621 else 1622 tmp |= RT2573_PA_PE_5GHZ; 1623 rum_write(sc, RT2573_PHY_CSR0, tmp); 1624} 1625 1626static void 1627rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1628{ 1629 struct ifnet *ifp = sc->sc_ifp; 1630 struct ieee80211com *ic = ifp->if_l2com; 1631 const struct rfprog *rfprog; 1632 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1633 int8_t power; 1634 int i, chan; 1635 1636 chan = ieee80211_chan2ieee(ic, c); 1637 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1638 return; 1639 1640 /* select the appropriate RF settings based on what EEPROM says */ 1641 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1642 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1643 1644 /* find the settings for this channel (we know it exists) */ 1645 for (i = 0; rfprog[i].chan != chan; i++); 1646 1647 power = sc->txpow[i]; 1648 if (power < 0) { 1649 bbp94 += power; 1650 power = 0; 1651 } else if (power > 31) { 1652 bbp94 += power - 31; 1653 power = 31; 1654 } 1655 1656 /* 1657 * If we are switching from the 2GHz band to the 5GHz band or 1658 * vice-versa, BBP registers need to be reprogrammed. 1659 */ 1660 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1661 rum_select_band(sc, c); 1662 rum_select_antenna(sc); 1663 } 1664 ic->ic_curchan = c; 1665 1666 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1667 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1668 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1669 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1670 1671 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1672 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1673 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1674 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1675 1676 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1677 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1678 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1679 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1680 1681 rum_pause(sc, hz / 100); 1682 1683 /* enable smart mode for MIMO-capable RFs */ 1684 bbp3 = rum_bbp_read(sc, 3); 1685 1686 bbp3 &= ~RT2573_SMART_MODE; 1687 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1688 bbp3 |= RT2573_SMART_MODE; 1689 1690 rum_bbp_write(sc, 3, bbp3); 1691 1692 if (bbp94 != RT2573_BBPR94_DEFAULT) 1693 rum_bbp_write(sc, 94, bbp94); 1694 1695 /* give the chip some extra time to do the switchover */ 1696 rum_pause(sc, hz / 100); 1697} 1698 1699/* 1700 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1701 * and HostAP operating modes. 1702 */ 1703static void 1704rum_enable_tsf_sync(struct rum_softc *sc) 1705{ 1706 struct ifnet *ifp = sc->sc_ifp; 1707 struct ieee80211com *ic = ifp->if_l2com; 1708 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1709 uint32_t tmp; 1710 1711 if (vap->iv_opmode != IEEE80211_M_STA) { 1712 /* 1713 * Change default 16ms TBTT adjustment to 8ms. 1714 * Must be done before enabling beacon generation. 1715 */ 1716 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1717 } 1718 1719 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1720 1721 /* set beacon interval (in 1/16ms unit) */ 1722 tmp |= vap->iv_bss->ni_intval * 16; 1723 1724 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1725 if (vap->iv_opmode == IEEE80211_M_STA) 1726 tmp |= RT2573_TSF_MODE(1); 1727 else 1728 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1729 1730 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1731} 1732 1733static void 1734rum_enable_tsf(struct rum_softc *sc) 1735{ 1736 rum_write(sc, RT2573_TXRX_CSR9, 1737 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1738 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1739} 1740 1741static void 1742rum_update_slot(struct ifnet *ifp) 1743{ 1744 struct rum_softc *sc = ifp->if_softc; 1745 struct ieee80211com *ic = ifp->if_l2com; 1746 uint8_t slottime; 1747 uint32_t tmp; 1748 1749 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1750 1751 tmp = rum_read(sc, RT2573_MAC_CSR9); 1752 tmp = (tmp & ~0xff) | slottime; 1753 rum_write(sc, RT2573_MAC_CSR9, tmp); 1754 1755 DPRINTF("setting slot time to %uus\n", slottime); 1756} 1757 1758static void 1759rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1760{ 1761 uint32_t tmp; 1762 1763 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1764 rum_write(sc, RT2573_MAC_CSR4, tmp); 1765 1766 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1767 rum_write(sc, RT2573_MAC_CSR5, tmp); 1768} 1769 1770static void 1771rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1772{ 1773 uint32_t tmp; 1774 1775 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1776 rum_write(sc, RT2573_MAC_CSR2, tmp); 1777 1778 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1779 rum_write(sc, RT2573_MAC_CSR3, tmp); 1780} 1781 1782static void 1783rum_setpromisc(struct rum_softc *sc) 1784{ 1785 struct ifnet *ifp = sc->sc_ifp; 1786 uint32_t tmp; 1787 1788 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1789 1790 tmp &= ~RT2573_DROP_NOT_TO_ME; 1791 if (!(ifp->if_flags & IFF_PROMISC)) 1792 tmp |= RT2573_DROP_NOT_TO_ME; 1793 1794 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1795 1796 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1797 "entering" : "leaving"); 1798} 1799 1800static void 1801rum_update_promisc(struct ifnet *ifp) 1802{ 1803 struct rum_softc *sc = ifp->if_softc; 1804 1805 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1806 return; 1807 1808 RUM_LOCK(sc); 1809 rum_setpromisc(sc); 1810 RUM_UNLOCK(sc); 1811} 1812 1813static const char * 1814rum_get_rf(int rev) 1815{ 1816 switch (rev) { 1817 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1818 case RT2573_RF_2528: return "RT2528"; 1819 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1820 case RT2573_RF_5226: return "RT5226"; 1821 default: return "unknown"; 1822 } 1823} 1824 1825static void 1826rum_read_eeprom(struct rum_softc *sc) 1827{ 1828 uint16_t val; 1829#ifdef RUM_DEBUG 1830 int i; 1831#endif 1832 1833 /* read MAC address */ 1834 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1835 1836 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1837 val = le16toh(val); 1838 sc->rf_rev = (val >> 11) & 0x1f; 1839 sc->hw_radio = (val >> 10) & 0x1; 1840 sc->rx_ant = (val >> 4) & 0x3; 1841 sc->tx_ant = (val >> 2) & 0x3; 1842 sc->nb_ant = val & 0x3; 1843 1844 DPRINTF("RF revision=%d\n", sc->rf_rev); 1845 1846 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1847 val = le16toh(val); 1848 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1849 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1850 1851 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1852 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1853 1854 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1855 val = le16toh(val); 1856 if ((val & 0xff) != 0xff) 1857 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1858 1859 /* Only [-10, 10] is valid */ 1860 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1861 sc->rssi_2ghz_corr = 0; 1862 1863 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1864 val = le16toh(val); 1865 if ((val & 0xff) != 0xff) 1866 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1867 1868 /* Only [-10, 10] is valid */ 1869 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1870 sc->rssi_5ghz_corr = 0; 1871 1872 if (sc->ext_2ghz_lna) 1873 sc->rssi_2ghz_corr -= 14; 1874 if (sc->ext_5ghz_lna) 1875 sc->rssi_5ghz_corr -= 14; 1876 1877 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1878 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1879 1880 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1881 val = le16toh(val); 1882 if ((val & 0xff) != 0xff) 1883 sc->rffreq = val & 0xff; 1884 1885 DPRINTF("RF freq=%d\n", sc->rffreq); 1886 1887 /* read Tx power for all a/b/g channels */ 1888 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1889 /* XXX default Tx power for 802.11a channels */ 1890 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1891#ifdef RUM_DEBUG 1892 for (i = 0; i < 14; i++) 1893 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1894#endif 1895 1896 /* read default values for BBP registers */ 1897 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1898#ifdef RUM_DEBUG 1899 for (i = 0; i < 14; i++) { 1900 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1901 continue; 1902 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1903 sc->bbp_prom[i].val); 1904 } 1905#endif 1906} 1907 1908static int 1909rum_bbp_init(struct rum_softc *sc) 1910{ 1911#define N(a) (sizeof (a) / sizeof ((a)[0])) 1912 int i, ntries; 1913 1914 /* wait for BBP to be ready */ 1915 for (ntries = 0; ntries < 100; ntries++) { 1916 const uint8_t val = rum_bbp_read(sc, 0); 1917 if (val != 0 && val != 0xff) 1918 break; 1919 if (rum_pause(sc, hz / 100)) 1920 break; 1921 } 1922 if (ntries == 100) { 1923 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1924 return EIO; 1925 } 1926 1927 /* initialize BBP registers to default values */ 1928 for (i = 0; i < N(rum_def_bbp); i++) 1929 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1930 1931 /* write vendor-specific BBP values (from EEPROM) */ 1932 for (i = 0; i < 16; i++) { 1933 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1934 continue; 1935 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1936 } 1937 1938 return 0; 1939#undef N 1940} 1941 1942static void 1943rum_init_locked(struct rum_softc *sc) 1944{ 1945#define N(a) (sizeof (a) / sizeof ((a)[0])) 1946 struct ifnet *ifp = sc->sc_ifp; 1947 struct ieee80211com *ic = ifp->if_l2com; 1948 uint32_t tmp; 1949 usb_error_t error; 1950 int i, ntries; 1951 1952 RUM_LOCK_ASSERT(sc, MA_OWNED); 1953 1954 rum_stop(sc); 1955 1956 /* initialize MAC registers to default values */ 1957 for (i = 0; i < N(rum_def_mac); i++) 1958 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1959 1960 /* set host ready */ 1961 rum_write(sc, RT2573_MAC_CSR1, 3); 1962 rum_write(sc, RT2573_MAC_CSR1, 0); 1963 1964 /* wait for BBP/RF to wakeup */ 1965 for (ntries = 0; ntries < 100; ntries++) { 1966 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1967 break; 1968 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1969 if (rum_pause(sc, hz / 100)) 1970 break; 1971 } 1972 if (ntries == 100) { 1973 device_printf(sc->sc_dev, 1974 "timeout waiting for BBP/RF to wakeup\n"); 1975 goto fail; 1976 } 1977 1978 if ((error = rum_bbp_init(sc)) != 0) 1979 goto fail; 1980 1981 /* select default channel */ 1982 rum_select_band(sc, ic->ic_curchan); 1983 rum_select_antenna(sc); 1984 rum_set_chan(sc, ic->ic_curchan); 1985 1986 /* clear STA registers */ 1987 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1988 1989 rum_set_macaddr(sc, IF_LLADDR(ifp)); 1990 1991 /* initialize ASIC */ 1992 rum_write(sc, RT2573_MAC_CSR1, 4); 1993 1994 /* 1995 * Allocate Tx and Rx xfer queues. 1996 */ 1997 rum_setup_tx_list(sc); 1998 1999 /* update Rx filter */ 2000 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2001 2002 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2003 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2004 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2005 RT2573_DROP_ACKCTS; 2006 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2007 tmp |= RT2573_DROP_TODS; 2008 if (!(ifp->if_flags & IFF_PROMISC)) 2009 tmp |= RT2573_DROP_NOT_TO_ME; 2010 } 2011 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2012 2013 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2014 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2015 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2016 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2017 return; 2018 2019fail: rum_stop(sc); 2020#undef N 2021} 2022 2023static void 2024rum_init(void *priv) 2025{ 2026 struct rum_softc *sc = priv; 2027 struct ifnet *ifp = sc->sc_ifp; 2028 struct ieee80211com *ic = ifp->if_l2com; 2029 2030 RUM_LOCK(sc); 2031 rum_init_locked(sc); 2032 RUM_UNLOCK(sc); 2033 2034 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2035 ieee80211_start_all(ic); /* start all vap's */ 2036} 2037 2038static void 2039rum_stop(struct rum_softc *sc) 2040{ 2041 struct ifnet *ifp = sc->sc_ifp; 2042 uint32_t tmp; 2043 2044 RUM_LOCK_ASSERT(sc, MA_OWNED); 2045 2046 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2047 2048 RUM_UNLOCK(sc); 2049 2050 /* 2051 * Drain the USB transfers, if not already drained: 2052 */ 2053 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2054 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2055 2056 RUM_LOCK(sc); 2057 2058 rum_unsetup_tx_list(sc); 2059 2060 /* disable Rx */ 2061 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2062 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2063 2064 /* reset ASIC */ 2065 rum_write(sc, RT2573_MAC_CSR1, 3); 2066 rum_write(sc, RT2573_MAC_CSR1, 0); 2067} 2068 2069static void 2070rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2071{ 2072 struct usb_device_request req; 2073 uint16_t reg = RT2573_MCU_CODE_BASE; 2074 usb_error_t err; 2075 2076 /* copy firmware image into NIC */ 2077 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2078 err = rum_write(sc, reg, UGETDW(ucode)); 2079 if (err) { 2080 /* firmware already loaded ? */ 2081 device_printf(sc->sc_dev, "Firmware load " 2082 "failure! (ignored)\n"); 2083 break; 2084 } 2085 } 2086 2087 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2088 req.bRequest = RT2573_MCU_CNTL; 2089 USETW(req.wValue, RT2573_MCU_RUN); 2090 USETW(req.wIndex, 0); 2091 USETW(req.wLength, 0); 2092 2093 err = rum_do_request(sc, &req, NULL); 2094 if (err != 0) { 2095 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2096 usbd_errstr(err)); 2097 } 2098 2099 /* give the chip some time to boot */ 2100 rum_pause(sc, hz / 8); 2101} 2102 2103static int 2104rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2105{ 2106 struct ieee80211com *ic = vap->iv_ic; 2107 const struct ieee80211_txparam *tp; 2108 struct rum_tx_desc desc; 2109 struct mbuf *m0; 2110 2111 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2112 if (m0 == NULL) { 2113 return ENOBUFS; 2114 } 2115 2116 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2117 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2118 m0->m_pkthdr.len, tp->mgmtrate); 2119 2120 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2121 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2122 2123 /* copy beacon header and payload into NIC memory */ 2124 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2125 m0->m_pkthdr.len); 2126 2127 m_freem(m0); 2128 2129 return 0; 2130} 2131 2132static int 2133rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2134 const struct ieee80211_bpf_params *params) 2135{ 2136 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2137 struct rum_softc *sc = ifp->if_softc; 2138 2139 RUM_LOCK(sc); 2140 /* prevent management frames from being sent if we're not ready */ 2141 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2142 RUM_UNLOCK(sc); 2143 m_freem(m); 2144 ieee80211_free_node(ni); 2145 return ENETDOWN; 2146 } 2147 if (sc->tx_nfree < RUM_TX_MINFREE) { 2148 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2149 RUM_UNLOCK(sc); 2150 m_freem(m); 2151 ieee80211_free_node(ni); 2152 return EIO; 2153 } 2154 2155 ifp->if_opackets++; 2156 2157 if (params == NULL) { 2158 /* 2159 * Legacy path; interpret frame contents to decide 2160 * precisely how to send the frame. 2161 */ 2162 if (rum_tx_mgt(sc, m, ni) != 0) 2163 goto bad; 2164 } else { 2165 /* 2166 * Caller supplied explicit parameters to use in 2167 * sending the frame. 2168 */ 2169 if (rum_tx_raw(sc, m, ni, params) != 0) 2170 goto bad; 2171 } 2172 RUM_UNLOCK(sc); 2173 2174 return 0; 2175bad: 2176 ifp->if_oerrors++; 2177 RUM_UNLOCK(sc); 2178 ieee80211_free_node(ni); 2179 return EIO; 2180} 2181 2182static void 2183rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2184{ 2185 struct ieee80211vap *vap = ni->ni_vap; 2186 struct rum_vap *rvp = RUM_VAP(vap); 2187 2188 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2189 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2190 2191 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2192 2193 usb_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2194} 2195 2196static void 2197rum_amrr_timeout(void *arg) 2198{ 2199 struct rum_vap *rvp = arg; 2200 struct ieee80211vap *vap = &rvp->vap; 2201 struct ieee80211com *ic = vap->iv_ic; 2202 2203 ieee80211_runtask(ic, &rvp->amrr_task); 2204} 2205 2206static void 2207rum_amrr_task(void *arg, int pending) 2208{ 2209 struct rum_vap *rvp = arg; 2210 struct ieee80211vap *vap = &rvp->vap; 2211 struct ieee80211com *ic = vap->iv_ic; 2212 struct ifnet *ifp = ic->ic_ifp; 2213 struct rum_softc *sc = ifp->if_softc; 2214 struct ieee80211_node *ni = vap->iv_bss; 2215 int ok, fail; 2216 2217 RUM_LOCK(sc); 2218 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2219 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2220 2221 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2222 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2223 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2224 2225 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2226 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2227 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2228 2229 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2230 2231 usb_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2232 RUM_UNLOCK(sc); 2233} 2234 2235/* ARGUSED */ 2236static struct ieee80211_node * 2237rum_node_alloc(struct ieee80211vap *vap __unused, 2238 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2239{ 2240 struct rum_node *rn; 2241 2242 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2243 return rn != NULL ? &rn->ni : NULL; 2244} 2245 2246static void 2247rum_newassoc(struct ieee80211_node *ni, int isnew) 2248{ 2249 struct ieee80211vap *vap = ni->ni_vap; 2250 2251 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2252} 2253 2254static void 2255rum_scan_start(struct ieee80211com *ic) 2256{ 2257 struct ifnet *ifp = ic->ic_ifp; 2258 struct rum_softc *sc = ifp->if_softc; 2259 uint32_t tmp; 2260 2261 RUM_LOCK(sc); 2262 /* abort TSF synchronization */ 2263 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2264 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2265 rum_set_bssid(sc, ifp->if_broadcastaddr); 2266 RUM_UNLOCK(sc); 2267 2268} 2269 2270static void 2271rum_scan_end(struct ieee80211com *ic) 2272{ 2273 struct rum_softc *sc = ic->ic_ifp->if_softc; 2274 2275 RUM_LOCK(sc); 2276 rum_enable_tsf_sync(sc); 2277 rum_set_bssid(sc, sc->sc_bssid); 2278 RUM_UNLOCK(sc); 2279 2280} 2281 2282static void 2283rum_set_channel(struct ieee80211com *ic) 2284{ 2285 struct rum_softc *sc = ic->ic_ifp->if_softc; 2286 2287 RUM_LOCK(sc); 2288 rum_set_chan(sc, ic->ic_curchan); 2289 RUM_UNLOCK(sc); 2290} 2291 2292static int 2293rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2294{ 2295 struct ifnet *ifp = sc->sc_ifp; 2296 struct ieee80211com *ic = ifp->if_l2com; 2297 int lna, agc, rssi; 2298 2299 lna = (raw >> 5) & 0x3; 2300 agc = raw & 0x1f; 2301 2302 if (lna == 0) { 2303 /* 2304 * No RSSI mapping 2305 * 2306 * NB: Since RSSI is relative to noise floor, -1 is 2307 * adequate for caller to know error happened. 2308 */ 2309 return -1; 2310 } 2311 2312 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2313 2314 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2315 rssi += sc->rssi_2ghz_corr; 2316 2317 if (lna == 1) 2318 rssi -= 64; 2319 else if (lna == 2) 2320 rssi -= 74; 2321 else if (lna == 3) 2322 rssi -= 90; 2323 } else { 2324 rssi += sc->rssi_5ghz_corr; 2325 2326 if (!sc->ext_5ghz_lna && lna != 1) 2327 rssi += 4; 2328 2329 if (lna == 1) 2330 rssi -= 64; 2331 else if (lna == 2) 2332 rssi -= 86; 2333 else if (lna == 3) 2334 rssi -= 100; 2335 } 2336 return rssi; 2337} 2338 2339static int 2340rum_pause(struct rum_softc *sc, int timeout) 2341{ 2342 2343 usb_pause_mtx(&sc->sc_mtx, timeout); 2344 return (0); 2345} 2346 2347static device_method_t rum_methods[] = { 2348 /* Device interface */ 2349 DEVMETHOD(device_probe, rum_match), 2350 DEVMETHOD(device_attach, rum_attach), 2351 DEVMETHOD(device_detach, rum_detach), 2352 2353 { 0, 0 } 2354}; 2355 2356static driver_t rum_driver = { 2357 .name = "rum", 2358 .methods = rum_methods, 2359 .size = sizeof(struct rum_softc), 2360}; 2361 2362static devclass_t rum_devclass; 2363 2364DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2365