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sys/dev/usb/if_rum.c
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1 /* $FreeBSD: releng/7.3/sys/dev/usb/if_rum.c 181863 2008-08-19 01:51:37Z kevlo $ */ 2 3 /*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/cdefs.h> 21 __FBSDID("$FreeBSD: releng/7.3/sys/dev/usb/if_rum.c 181863 2008-08-19 01:51:37Z kevlo $"); 22 23 /*- 24 * Ralink Technology RT2501USB/RT2601USB chipset driver 25 * http://www.ralinktech.com.tw/ 26 */ 27 28 #include <sys/param.h> 29 #include <sys/sysctl.h> 30 #include <sys/sockio.h> 31 #include <sys/mbuf.h> 32 #include <sys/kernel.h> 33 #include <sys/socket.h> 34 #include <sys/systm.h> 35 #include <sys/malloc.h> 36 #include <sys/module.h> 37 #include <sys/bus.h> 38 #include <sys/endian.h> 39 40 #include <machine/bus.h> 41 #include <machine/resource.h> 42 #include <sys/rman.h> 43 44 #include <net/bpf.h> 45 #include <net/if.h> 46 #include <net/if_arp.h> 47 #include <net/ethernet.h> 48 #include <net/if_dl.h> 49 #include <net/if_media.h> 50 #include <net/if_types.h> 51 52 #include <net80211/ieee80211_var.h> 53 #include <net80211/ieee80211_amrr.h> 54 #include <net80211/ieee80211_radiotap.h> 55 #include <net80211/ieee80211_regdomain.h> 56 57 #include <dev/usb/usb.h> 58 #include <dev/usb/usbdi.h> 59 #include <dev/usb/usbdi_util.h> 60 #include "usbdevs.h" 61 62 #include <dev/usb/if_rumreg.h> 63 #include <dev/usb/if_rumvar.h> 64 #include <dev/usb/rt2573_ucode.h> 65 66 #ifdef USB_DEBUG 67 #define DPRINTF(x) do { if (rumdebug > 0) printf x; } while (0) 68 #define DPRINTFN(n, x) do { if (rumdebug >= (n)) printf x; } while (0) 69 int rumdebug = 0; 70 SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 71 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rumdebug, 0, 72 "rum debug level"); 73 #else 74 #define DPRINTF(x) 75 #define DPRINTFN(n, x) 76 #endif 77 78 /* various supported device vendors/products */ 79 static const struct usb_devno rum_devs[] = { 80 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM }, 81 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 }, 82 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3 }, 83 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4 }, 84 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700 }, 85 { USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO }, 86 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1 }, 87 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2 }, 88 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A }, 89 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 }, 90 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC }, 91 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR }, 92 { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2 }, 93 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F }, 94 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 }, 95 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 }, 96 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 }, 97 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111 }, 98 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110 }, 99 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS }, 100 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS }, 101 { USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 }, 102 { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 }, 103 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB }, 104 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP }, 105 { USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G }, 106 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP }, 107 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP }, 108 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1 }, 109 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 }, 110 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 }, 111 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4 }, 112 { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 }, 113 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP }, 114 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 }, 115 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM }, 116 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 }, 117 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 }, 118 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 }, 119 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2 }, 120 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 }, 121 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 }, 122 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 }, 123 { USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573 }, 124 { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 } 125 }; 126 127 MODULE_DEPEND(rum, wlan, 1, 1, 1); 128 MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 129 MODULE_DEPEND(rum, usb, 1, 1, 1); 130 131 static int rum_alloc_tx_list(struct rum_softc *); 132 static void rum_free_tx_list(struct rum_softc *); 133 static int rum_alloc_rx_list(struct rum_softc *); 134 static void rum_free_rx_list(struct rum_softc *); 135 static int rum_media_change(struct ifnet *); 136 static void rum_task(void *); 137 static void rum_scantask(void *); 138 static int rum_newstate(struct ieee80211com *, 139 enum ieee80211_state, int); 140 static void rum_txeof(usbd_xfer_handle, usbd_private_handle, 141 usbd_status); 142 static void rum_rxeof(usbd_xfer_handle, usbd_private_handle, 143 usbd_status); 144 static int rum_rxrate(struct rum_rx_desc *); 145 static int rum_ack_rate(struct ieee80211com *, int); 146 static uint16_t rum_txtime(int, int, uint32_t); 147 static uint8_t rum_plcp_signal(int); 148 static void rum_setup_tx_desc(struct rum_softc *, 149 struct rum_tx_desc *, uint32_t, uint16_t, int, 150 int); 151 static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 152 struct ieee80211_node *); 153 static int rum_tx_raw(struct rum_softc *, struct mbuf *, 154 struct ieee80211_node *, 155 const struct ieee80211_bpf_params *); 156 static int rum_tx_data(struct rum_softc *, struct mbuf *, 157 struct ieee80211_node *); 158 static void rum_start(struct ifnet *); 159 static void rum_watchdog(void *); 160 static int rum_ioctl(struct ifnet *, u_long, caddr_t); 161 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 162 int); 163 static uint32_t rum_read(struct rum_softc *, uint16_t); 164 static void rum_read_multi(struct rum_softc *, uint16_t, void *, 165 int); 166 static void rum_write(struct rum_softc *, uint16_t, uint32_t); 167 static void rum_write_multi(struct rum_softc *, uint16_t, void *, 168 size_t); 169 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 170 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 171 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 172 static void rum_select_antenna(struct rum_softc *); 173 static void rum_enable_mrr(struct rum_softc *); 174 static void rum_set_txpreamble(struct rum_softc *); 175 static void rum_set_basicrates(struct rum_softc *); 176 static void rum_select_band(struct rum_softc *, 177 struct ieee80211_channel *); 178 static void rum_set_chan(struct rum_softc *, 179 struct ieee80211_channel *); 180 static void rum_enable_tsf_sync(struct rum_softc *); 181 static void rum_update_slot(struct ifnet *); 182 static void rum_set_bssid(struct rum_softc *, const uint8_t *); 183 static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 184 static void rum_update_promisc(struct rum_softc *); 185 static const char *rum_get_rf(int); 186 static void rum_read_eeprom(struct rum_softc *); 187 static int rum_bbp_init(struct rum_softc *); 188 static void rum_init(void *); 189 static void rum_stop(void *); 190 static int rum_load_microcode(struct rum_softc *, const u_char *, 191 size_t); 192 static int rum_prepare_beacon(struct rum_softc *); 193 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 194 const struct ieee80211_bpf_params *); 195 static void rum_scan_start(struct ieee80211com *); 196 static void rum_scan_end(struct ieee80211com *); 197 static void rum_set_channel(struct ieee80211com *); 198 static int rum_get_rssi(struct rum_softc *, uint8_t); 199 static void rum_amrr_start(struct rum_softc *, 200 struct ieee80211_node *); 201 static void rum_amrr_timeout(void *); 202 static void rum_amrr_update(usbd_xfer_handle, usbd_private_handle, 203 usbd_status); 204 205 static const struct { 206 uint32_t reg; 207 uint32_t val; 208 } rum_def_mac[] = { 209 { RT2573_TXRX_CSR0, 0x025fb032 }, 210 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 211 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 212 { RT2573_TXRX_CSR3, 0x00858687 }, 213 { RT2573_TXRX_CSR7, 0x2e31353b }, 214 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 215 { RT2573_TXRX_CSR15, 0x0000000f }, 216 { RT2573_MAC_CSR6, 0x00000fff }, 217 { RT2573_MAC_CSR8, 0x016c030a }, 218 { RT2573_MAC_CSR10, 0x00000718 }, 219 { RT2573_MAC_CSR12, 0x00000004 }, 220 { RT2573_MAC_CSR13, 0x00007f00 }, 221 { RT2573_SEC_CSR0, 0x00000000 }, 222 { RT2573_SEC_CSR1, 0x00000000 }, 223 { RT2573_SEC_CSR5, 0x00000000 }, 224 { RT2573_PHY_CSR1, 0x000023b0 }, 225 { RT2573_PHY_CSR5, 0x00040a06 }, 226 { RT2573_PHY_CSR6, 0x00080606 }, 227 { RT2573_PHY_CSR7, 0x00000408 }, 228 { RT2573_AIFSN_CSR, 0x00002273 }, 229 { RT2573_CWMIN_CSR, 0x00002344 }, 230 { RT2573_CWMAX_CSR, 0x000034aa } 231 }; 232 233 static const struct { 234 uint8_t reg; 235 uint8_t val; 236 } rum_def_bbp[] = { 237 { 3, 0x80 }, 238 { 15, 0x30 }, 239 { 17, 0x20 }, 240 { 21, 0xc8 }, 241 { 22, 0x38 }, 242 { 23, 0x06 }, 243 { 24, 0xfe }, 244 { 25, 0x0a }, 245 { 26, 0x0d }, 246 { 32, 0x0b }, 247 { 34, 0x12 }, 248 { 37, 0x07 }, 249 { 39, 0xf8 }, 250 { 41, 0x60 }, 251 { 53, 0x10 }, 252 { 54, 0x18 }, 253 { 60, 0x10 }, 254 { 61, 0x04 }, 255 { 62, 0x04 }, 256 { 75, 0xfe }, 257 { 86, 0xfe }, 258 { 88, 0xfe }, 259 { 90, 0x0f }, 260 { 99, 0x00 }, 261 { 102, 0x16 }, 262 { 107, 0x04 } 263 }; 264 265 static const struct rfprog { 266 uint8_t chan; 267 uint32_t r1, r2, r3, r4; 268 } rum_rf5226[] = { 269 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 270 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 271 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 272 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 273 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 274 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 275 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 276 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 277 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 278 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 279 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 280 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 281 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 282 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 283 284 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 285 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 286 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 287 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 288 289 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 290 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 291 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 292 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 293 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 294 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 295 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 296 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 297 298 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 299 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 300 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 301 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 302 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 303 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 304 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 305 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 306 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 307 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 308 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 309 310 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 311 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 312 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 313 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 314 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 315 }, rum_rf5225[] = { 316 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 317 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 318 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 319 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 320 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 321 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 322 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 323 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 324 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 325 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 326 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 327 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 328 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 329 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 330 331 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 332 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 333 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 334 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 335 336 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 337 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 338 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 339 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 340 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 341 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 342 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 343 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 344 345 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 346 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 347 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 348 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 349 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 350 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 351 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 352 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 353 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 354 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 355 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 356 357 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 358 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 359 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 360 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 361 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 362 }; 363 364 static int 365 rum_match(device_t self) 366 { 367 struct usb_attach_arg *uaa = device_get_ivars(self); 368 369 if (uaa->iface != NULL) 370 return UMATCH_NONE; 371 372 return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ? 373 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 374 } 375 376 static int 377 rum_attach(device_t self) 378 { 379 struct rum_softc *sc = device_get_softc(self); 380 struct usb_attach_arg *uaa = device_get_ivars(self); 381 struct ieee80211com *ic = &sc->sc_ic; 382 struct ifnet *ifp; 383 const uint8_t *ucode = NULL; 384 usb_interface_descriptor_t *id; 385 usb_endpoint_descriptor_t *ed; 386 usbd_status error; 387 int i, ntries, size, bands; 388 uint32_t tmp; 389 390 sc->sc_udev = uaa->device; 391 sc->sc_dev = self; 392 393 if (usbd_set_config_no(sc->sc_udev, RT2573_CONFIG_NO, 0) != 0) { 394 printf("%s: could not set configuration no\n", 395 device_get_nameunit(sc->sc_dev)); 396 return ENXIO; 397 } 398 399 /* get the first interface handle */ 400 error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX, 401 &sc->sc_iface); 402 if (error != 0) { 403 printf("%s: could not get interface handle\n", 404 device_get_nameunit(sc->sc_dev)); 405 return ENXIO; 406 } 407 408 /* 409 * Find endpoints. 410 */ 411 id = usbd_get_interface_descriptor(sc->sc_iface); 412 413 sc->sc_rx_no = sc->sc_tx_no = -1; 414 for (i = 0; i < id->bNumEndpoints; i++) { 415 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 416 if (ed == NULL) { 417 printf("%s: no endpoint descriptor for iface %d\n", 418 device_get_nameunit(sc->sc_dev), i); 419 return ENXIO; 420 } 421 422 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 423 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 424 sc->sc_rx_no = ed->bEndpointAddress; 425 else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 426 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 427 sc->sc_tx_no = ed->bEndpointAddress; 428 } 429 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) { 430 printf("%s: missing endpoint\n", 431 device_get_nameunit(sc->sc_dev)); 432 return ENXIO; 433 } 434 435 mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK, 436 MTX_DEF | MTX_RECURSE); 437 438 usb_init_task(&sc->sc_task, rum_task, sc); 439 usb_init_task(&sc->sc_scantask, rum_scantask, sc); 440 callout_init(&sc->watchdog_ch, 0); 441 callout_init(&sc->amrr_ch, 0); 442 443 /* retrieve RT2573 rev. no */ 444 for (ntries = 0; ntries < 1000; ntries++) { 445 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 446 break; 447 DELAY(1000); 448 } 449 if (ntries == 1000) { 450 printf("%s: timeout waiting for chip to settle\n", 451 device_get_nameunit(sc->sc_dev)); 452 return ENXIO; 453 } 454 455 /* retrieve MAC address and various other things from EEPROM */ 456 rum_read_eeprom(sc); 457 458 printf("%s: MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 459 device_get_nameunit(sc->sc_dev), tmp, rum_get_rf(sc->rf_rev)); 460 461 ucode = rt2573_ucode; 462 size = sizeof rt2573_ucode; 463 error = rum_load_microcode(sc, ucode, size); 464 if (error != 0) { 465 device_printf(sc->sc_dev, "could not load 8051 microcode\n"); 466 mtx_destroy(&sc->sc_mtx); 467 return ENXIO; 468 } 469 470 ifp = sc->sc_ifp = if_alloc(IFT_ETHER); 471 if (ifp == NULL) { 472 printf("%s: can not if_alloc()\n", 473 device_get_nameunit(sc->sc_dev)); 474 mtx_destroy(&sc->sc_mtx); 475 return ENXIO; 476 } 477 478 ifp->if_softc = sc; 479 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 480 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST | 481 IFF_NEEDSGIANT; /* USB stack is still under Giant lock */ 482 ifp->if_init = rum_init; 483 ifp->if_ioctl = rum_ioctl; 484 ifp->if_start = rum_start; 485 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 486 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 487 IFQ_SET_READY(&ifp->if_snd); 488 489 ic->ic_ifp = ifp; 490 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 491 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 492 ic->ic_state = IEEE80211_S_INIT; 493 494 /* set device capabilities */ 495 ic->ic_caps = 496 IEEE80211_C_IBSS | /* IBSS mode supported */ 497 IEEE80211_C_MONITOR | /* monitor mode supported */ 498 IEEE80211_C_HOSTAP | /* HostAp mode supported */ 499 IEEE80211_C_TXPMGT | /* tx power management */ 500 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 501 IEEE80211_C_SHSLOT | /* short slot time supported */ 502 IEEE80211_C_BGSCAN | /* bg scanning supported */ 503 IEEE80211_C_WPA; /* 802.11i */ 504 505 bands = 0; 506 setbit(&bands, IEEE80211_MODE_11B); 507 setbit(&bands, IEEE80211_MODE_11G); 508 ieee80211_init_channels(ic, 0, CTRY_DEFAULT, bands, 0, 1); 509 510 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) { 511 struct ieee80211_channel *c; 512 513 /* set supported .11a channels */ 514 for (i = 34; i <= 46; i += 4) { 515 c = &ic->ic_channels[ic->ic_nchans++]; 516 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 517 c->ic_flags = IEEE80211_CHAN_A; 518 c->ic_ieee = i; 519 } 520 for (i = 36; i <= 64; i += 4) { 521 c = &ic->ic_channels[ic->ic_nchans++]; 522 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 523 c->ic_flags = IEEE80211_CHAN_A; 524 c->ic_ieee = i; 525 } 526 for (i = 100; i <= 140; i += 4) { 527 c = &ic->ic_channels[ic->ic_nchans++]; 528 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 529 c->ic_flags = IEEE80211_CHAN_A; 530 c->ic_ieee = i; 531 } 532 for (i = 149; i <= 165; i += 4) { 533 c = &ic->ic_channels[ic->ic_nchans++]; 534 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 535 c->ic_flags = IEEE80211_CHAN_A; 536 c->ic_ieee = i; 537 } 538 } 539 540 ieee80211_ifattach(ic); 541 ic->ic_scan_start = rum_scan_start; 542 ic->ic_scan_end = rum_scan_end; 543 ic->ic_set_channel = rum_set_channel; 544 545 /* enable s/w bmiss handling in sta mode */ 546 ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS; 547 548 /* override state transition machine */ 549 sc->sc_newstate = ic->ic_newstate; 550 ic->ic_newstate = rum_newstate; 551 ic->ic_raw_xmit = rum_raw_xmit; 552 ieee80211_media_init(ic, rum_media_change, ieee80211_media_status); 553 554 ieee80211_amrr_init(&sc->amrr, ic, 555 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 556 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD); 557 558 bpfattach2(ifp, DLT_IEEE802_11_RADIO, 559 sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 560 &sc->sc_drvbpf); 561 562 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 563 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 564 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 565 566 sc->sc_txtap_len = sizeof sc->sc_txtapu; 567 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 568 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 569 570 if (bootverbose) 571 ieee80211_announce(ic); 572 573 return 0; 574 } 575 576 static int 577 rum_detach(device_t self) 578 { 579 struct rum_softc *sc = device_get_softc(self); 580 struct ieee80211com *ic = &sc->sc_ic; 581 struct ifnet *ifp = ic->ic_ifp; 582 583 rum_stop(sc); 584 usb_rem_task(sc->sc_udev, &sc->sc_task); 585 usb_rem_task(sc->sc_udev, &sc->sc_scantask); 586 callout_stop(&sc->watchdog_ch); 587 callout_stop(&sc->amrr_ch); 588 589 if (sc->amrr_xfer != NULL) { 590 usbd_free_xfer(sc->amrr_xfer); 591 sc->amrr_xfer = NULL; 592 } 593 594 if (sc->sc_rx_pipeh != NULL) { 595 usbd_abort_pipe(sc->sc_rx_pipeh); 596 usbd_close_pipe(sc->sc_rx_pipeh); 597 } 598 if (sc->sc_tx_pipeh != NULL) { 599 usbd_abort_pipe(sc->sc_tx_pipeh); 600 usbd_close_pipe(sc->sc_tx_pipeh); 601 } 602 603 rum_free_rx_list(sc); 604 rum_free_tx_list(sc); 605 606 bpfdetach(ifp); 607 ieee80211_ifdetach(ic); 608 if_free(ifp); 609 610 mtx_destroy(&sc->sc_mtx); 611 612 return 0; 613 } 614 615 static int 616 rum_alloc_tx_list(struct rum_softc *sc) 617 { 618 struct rum_tx_data *data; 619 int i, error; 620 621 sc->tx_queued = 0; 622 623 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 624 data = &sc->tx_data[i]; 625 626 data->sc = sc; 627 628 data->xfer = usbd_alloc_xfer(sc->sc_udev); 629 if (data->xfer == NULL) { 630 printf("%s: could not allocate tx xfer\n", 631 device_get_nameunit(sc->sc_dev)); 632 error = ENOMEM; 633 goto fail; 634 } 635 data->buf = usbd_alloc_buffer(data->xfer, 636 RT2573_TX_DESC_SIZE + MCLBYTES); 637 if (data->buf == NULL) { 638 printf("%s: could not allocate tx buffer\n", 639 device_get_nameunit(sc->sc_dev)); 640 error = ENOMEM; 641 goto fail; 642 } 643 /* clean Tx descriptor */ 644 bzero(data->buf, RT2573_TX_DESC_SIZE); 645 } 646 647 return 0; 648 649 fail: rum_free_tx_list(sc); 650 return error; 651 } 652 653 static void 654 rum_free_tx_list(struct rum_softc *sc) 655 { 656 struct rum_tx_data *data; 657 int i; 658 659 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 660 data = &sc->tx_data[i]; 661 662 if (data->xfer != NULL) { 663 usbd_free_xfer(data->xfer); 664 data->xfer = NULL; 665 } 666 667 if (data->ni != NULL) { 668 ieee80211_free_node(data->ni); 669 data->ni = NULL; 670 } 671 } 672 } 673 674 static int 675 rum_alloc_rx_list(struct rum_softc *sc) 676 { 677 struct rum_rx_data *data; 678 int i, error; 679 680 for (i = 0; i < RUM_RX_LIST_COUNT; i++) { 681 data = &sc->rx_data[i]; 682 683 data->sc = sc; 684 685 data->xfer = usbd_alloc_xfer(sc->sc_udev); 686 if (data->xfer == NULL) { 687 printf("%s: could not allocate rx xfer\n", 688 device_get_nameunit(sc->sc_dev)); 689 error = ENOMEM; 690 goto fail; 691 } 692 if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) { 693 printf("%s: could not allocate rx buffer\n", 694 device_get_nameunit(sc->sc_dev)); 695 error = ENOMEM; 696 goto fail; 697 } 698 699 data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 700 if (data->m == NULL) { 701 printf("%s: could not allocate rx mbuf\n", 702 device_get_nameunit(sc->sc_dev)); 703 error = ENOMEM; 704 goto fail; 705 } 706 707 data->buf = mtod(data->m, uint8_t *); 708 } 709 710 return 0; 711 712 fail: rum_free_tx_list(sc); 713 return error; 714 } 715 716 static void 717 rum_free_rx_list(struct rum_softc *sc) 718 { 719 struct rum_rx_data *data; 720 int i; 721 722 for (i = 0; i < RUM_RX_LIST_COUNT; i++) { 723 data = &sc->rx_data[i]; 724 725 if (data->xfer != NULL) { 726 usbd_free_xfer(data->xfer); 727 data->xfer = NULL; 728 } 729 if (data->m != NULL) { 730 m_freem(data->m); 731 data->m = NULL; 732 } 733 } 734 } 735 736 static int 737 rum_media_change(struct ifnet *ifp) 738 { 739 struct rum_softc *sc = ifp->if_softc; 740 int error; 741 742 RUM_LOCK(sc); 743 744 error = ieee80211_media_change(ifp); 745 if (error != ENETRESET) { 746 RUM_UNLOCK(sc); 747 return error; 748 } 749 750 if ((ifp->if_flags & IFF_UP) && 751 (ifp->if_drv_flags & IFF_DRV_RUNNING)) 752 rum_init(sc); 753 754 RUM_UNLOCK(sc); 755 756 return 0; 757 } 758 759 static void 760 rum_task(void *arg) 761 { 762 struct rum_softc *sc = arg; 763 struct ieee80211com *ic = &sc->sc_ic; 764 enum ieee80211_state ostate; 765 struct ieee80211_node *ni; 766 uint32_t tmp; 767 768 ostate = ic->ic_state; 769 770 RUM_LOCK(sc); 771 772 switch (sc->sc_state) { 773 case IEEE80211_S_INIT: 774 if (ostate == IEEE80211_S_RUN) { 775 /* abort TSF synchronization */ 776 tmp = rum_read(sc, RT2573_TXRX_CSR9); 777 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 778 } 779 break; 780 781 case IEEE80211_S_RUN: 782 ni = ic->ic_bss; 783 784 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 785 rum_update_slot(ic->ic_ifp); 786 rum_enable_mrr(sc); 787 rum_set_txpreamble(sc); 788 rum_set_basicrates(sc); 789 rum_set_bssid(sc, ni->ni_bssid); 790 } 791 792 if (ic->ic_opmode == IEEE80211_M_HOSTAP || 793 ic->ic_opmode == IEEE80211_M_IBSS) 794 rum_prepare_beacon(sc); 795 796 if (ic->ic_opmode != IEEE80211_M_MONITOR) 797 rum_enable_tsf_sync(sc); 798 799 /* enable automatic rate adaptation in STA mode */ 800 if (ic->ic_opmode == IEEE80211_M_STA && 801 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 802 rum_amrr_start(sc, ni); 803 break; 804 default: 805 break; 806 } 807 808 RUM_UNLOCK(sc); 809 810 sc->sc_newstate(ic, sc->sc_state, sc->sc_arg); 811 } 812 813 static int 814 rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 815 { 816 struct rum_softc *sc = ic->ic_ifp->if_softc; 817 818 callout_stop(&sc->amrr_ch); 819 820 /* do it in a process context */ 821 sc->sc_state = nstate; 822 sc->sc_arg = arg; 823 824 usb_rem_task(sc->sc_udev, &sc->sc_task); 825 if (nstate == IEEE80211_S_INIT) 826 sc->sc_newstate(ic, nstate, arg); 827 else 828 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER); 829 return 0; 830 } 831 832 /* quickly determine if a given rate is CCK or OFDM */ 833 #define RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 834 835 #define RUM_ACK_SIZE 14 /* 10 + 4(FCS) */ 836 #define RUM_CTS_SIZE 14 /* 10 + 4(FCS) */ 837 838 static void 839 rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 840 { 841 struct rum_tx_data *data = priv; 842 struct rum_softc *sc = data->sc; 843 struct ifnet *ifp = sc->sc_ic.ic_ifp; 844 845 if (data->m->m_flags & M_TXCB) 846 ieee80211_process_callback(data->ni, data->m, 847 status == USBD_NORMAL_COMPLETION ? 0 : ETIMEDOUT); 848 849 if (status != USBD_NORMAL_COMPLETION) { 850 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 851 return; 852 853 printf("%s: could not transmit buffer: %s\n", 854 device_get_nameunit(sc->sc_dev), usbd_errstr(status)); 855 856 if (status == USBD_STALLED) 857 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh); 858 859 ifp->if_oerrors++; 860 return; 861 } 862 863 m_freem(data->m); 864 data->m = NULL; 865 ieee80211_free_node(data->ni); 866 data->ni = NULL; 867 868 sc->tx_queued--; 869 ifp->if_opackets++; 870 871 DPRINTFN(10, ("tx done\n")); 872 873 sc->sc_tx_timer = 0; 874 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 875 rum_start(ifp); 876 } 877 878 static void 879 rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 880 { 881 struct rum_rx_data *data = priv; 882 struct rum_softc *sc = data->sc; 883 struct ieee80211com *ic = &sc->sc_ic; 884 struct ifnet *ifp = ic->ic_ifp; 885 struct rum_rx_desc *desc; 886 struct ieee80211_frame *wh; 887 struct ieee80211_node *ni; 888 struct mbuf *mnew, *m; 889 int len, rssi; 890 891 if (status != USBD_NORMAL_COMPLETION) { 892 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 893 return; 894 895 if (status == USBD_STALLED) 896 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh); 897 goto skip; 898 } 899 900 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 901 902 if (len < RT2573_RX_DESC_SIZE + sizeof (struct ieee80211_frame_min)) { 903 DPRINTF(("%s: xfer too short %d\n", 904 device_get_nameunit(sc->sc_dev), len)); 905 ifp->if_ierrors++; 906 goto skip; 907 } 908 909 desc = (struct rum_rx_desc *)data->buf; 910 911 if (le32toh(desc->flags) & RT2573_RX_CRC_ERROR) { 912 /* 913 * This should not happen since we did not request to receive 914 * those frames when we filled RT2573_TXRX_CSR0. 915 */ 916 DPRINTFN(5, ("CRC error\n")); 917 ifp->if_ierrors++; 918 goto skip; 919 } 920 921 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 922 if (mnew == NULL) { 923 ifp->if_ierrors++; 924 goto skip; 925 } 926 927 m = data->m; 928 data->m = mnew; 929 data->buf = mtod(data->m, uint8_t *); 930 931 /* finalize mbuf */ 932 m->m_pkthdr.rcvif = ifp; 933 m->m_data = (caddr_t)(desc + 1); 934 m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff; 935 936 rssi = rum_get_rssi(sc, desc->rssi); 937 938 wh = mtod(m, struct ieee80211_frame *); 939 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 940 941 /* Error happened during RSSI conversion. */ 942 if (rssi < 0) 943 rssi = ni->ni_rssi; 944 945 if (bpf_peers_present(sc->sc_drvbpf)) { 946 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 947 948 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 949 tap->wr_rate = rum_rxrate(desc); 950 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 951 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 952 tap->wr_antenna = sc->rx_ant; 953 tap->wr_antsignal = rssi; 954 955 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 956 } 957 958 /* send the frame to the 802.11 layer */ 959 ieee80211_input(ic, m, ni, rssi, RT2573_NOISE_FLOOR, 0); 960 961 /* node is no longer needed */ 962 ieee80211_free_node(ni); 963 964 DPRINTFN(15, ("rx done\n")); 965 966 skip: /* setup a new transfer */ 967 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES, 968 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof); 969 usbd_transfer(xfer); 970 } 971 972 /* 973 * This function is only used by the Rx radiotap code. 974 */ 975 static int 976 rum_rxrate(struct rum_rx_desc *desc) 977 { 978 if (le32toh(desc->flags) & RT2573_RX_OFDM) { 979 /* reverse function of rum_plcp_signal */ 980 switch (desc->rate) { 981 case 0xb: return 12; 982 case 0xf: return 18; 983 case 0xa: return 24; 984 case 0xe: return 36; 985 case 0x9: return 48; 986 case 0xd: return 72; 987 case 0x8: return 96; 988 case 0xc: return 108; 989 } 990 } else { 991 if (desc->rate == 10) 992 return 2; 993 if (desc->rate == 20) 994 return 4; 995 if (desc->rate == 55) 996 return 11; 997 if (desc->rate == 110) 998 return 22; 999 } 1000 return 2; /* should not get there */ 1001 } 1002 1003 /* 1004 * Return the expected ack rate for a frame transmitted at rate `rate'. 1005 */ 1006 static int 1007 rum_ack_rate(struct ieee80211com *ic, int rate) 1008 { 1009 switch (rate) { 1010 /* CCK rates */ 1011 case 2: 1012 return 2; 1013 case 4: 1014 case 11: 1015 case 22: 1016 return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate; 1017 1018 /* OFDM rates */ 1019 case 12: 1020 case 18: 1021 return 12; 1022 case 24: 1023 case 36: 1024 return 24; 1025 case 48: 1026 case 72: 1027 case 96: 1028 case 108: 1029 return 48; 1030 } 1031 1032 /* default to 1Mbps */ 1033 return 2; 1034 } 1035 1036 /* 1037 * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'. 1038 * The function automatically determines the operating mode depending on the 1039 * given rate. `flags' indicates whether short preamble is in use or not. 1040 */ 1041 static uint16_t 1042 rum_txtime(int len, int rate, uint32_t flags) 1043 { 1044 uint16_t txtime; 1045 1046 if (RUM_RATE_IS_OFDM(rate)) { 1047 /* IEEE Std 802.11a-1999, pp. 37 */ 1048 txtime = (8 + 4 * len + 3 + rate - 1) / rate; 1049 txtime = 16 + 4 + 4 * txtime + 6; 1050 } else { 1051 /* IEEE Std 802.11b-1999, pp. 28 */ 1052 txtime = (16 * len + rate - 1) / rate; 1053 if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE)) 1054 txtime += 72 + 24; 1055 else 1056 txtime += 144 + 48; 1057 } 1058 return txtime; 1059 } 1060 1061 static uint8_t 1062 rum_plcp_signal(int rate) 1063 { 1064 switch (rate) { 1065 /* CCK rates (returned values are device-dependent) */ 1066 case 2: return 0x0; 1067 case 4: return 0x1; 1068 case 11: return 0x2; 1069 case 22: return 0x3; 1070 1071 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1072 case 12: return 0xb; 1073 case 18: return 0xf; 1074 case 24: return 0xa; 1075 case 36: return 0xe; 1076 case 48: return 0x9; 1077 case 72: return 0xd; 1078 case 96: return 0x8; 1079 case 108: return 0xc; 1080 1081 /* unsupported rates (should not get there) */ 1082 default: return 0xff; 1083 } 1084 } 1085 1086 static void 1087 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1088 uint32_t flags, uint16_t xflags, int len, int rate) 1089 { 1090 struct ieee80211com *ic = &sc->sc_ic; 1091 uint16_t plcp_length; 1092 int remainder; 1093 1094 desc->flags = htole32(flags); 1095 desc->flags |= htole32(RT2573_TX_VALID); 1096 desc->flags |= htole32(len << 16); 1097 1098 desc->xflags = htole16(xflags); 1099 1100 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1101 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1102 1103 /* setup PLCP fields */ 1104 desc->plcp_signal = rum_plcp_signal(rate); 1105 desc->plcp_service = 4; 1106 1107 len += IEEE80211_CRC_LEN; 1108 if (RUM_RATE_IS_OFDM(rate)) { 1109 desc->flags |= htole32(RT2573_TX_OFDM); 1110 1111 plcp_length = len & 0xfff; 1112 desc->plcp_length_hi = plcp_length >> 6; 1113 desc->plcp_length_lo = plcp_length & 0x3f; 1114 } else { 1115 plcp_length = (16 * len + rate - 1) / rate; 1116 if (rate == 22) { 1117 remainder = (16 * len) % 22; 1118 if (remainder != 0 && remainder < 7) 1119 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1120 } 1121 desc->plcp_length_hi = plcp_length >> 8; 1122 desc->plcp_length_lo = plcp_length & 0xff; 1123 1124 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1125 desc->plcp_signal |= 0x08; 1126 } 1127 } 1128 1129 #define RUM_TX_TIMEOUT 5000 1130 1131 static int 1132 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1133 { 1134 struct ieee80211com *ic = &sc->sc_ic; 1135 struct rum_tx_desc *desc; 1136 struct rum_tx_data *data; 1137 struct ieee80211_frame *wh; 1138 uint32_t flags = 0; 1139 uint16_t dur; 1140 usbd_status error; 1141 int xferlen, rate; 1142 1143 data = &sc->tx_data[0]; 1144 desc = (struct rum_tx_desc *)data->buf; 1145 1146 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; 1147 1148 data->m = m0; 1149 data->ni = ni; 1150 1151 wh = mtod(m0, struct ieee80211_frame *); 1152 1153 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1154 flags |= RT2573_TX_NEED_ACK; 1155 1156 dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate), 1157 ic->ic_flags) + sc->sifs; 1158 *(uint16_t *)wh->i_dur = htole16(dur); 1159 1160 /* tell hardware to add timestamp for probe responses */ 1161 if ((wh->i_fc[0] & 1162 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1163 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1164 flags |= RT2573_TX_TIMESTAMP; 1165 } 1166 1167 if (bpf_peers_present(sc->sc_drvbpf)) { 1168 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1169 1170 tap->wt_flags = 0; 1171 tap->wt_rate = rate; 1172 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1173 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1174 tap->wt_antenna = sc->tx_ant; 1175 1176 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1177 } 1178 1179 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE); 1180 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1181 1182 /* align end on a 4-bytes boundary */ 1183 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1184 1185 /* 1186 * No space left in the last URB to store the extra 4 bytes, force 1187 * sending of another URB. 1188 */ 1189 if ((xferlen % 64) == 0) 1190 xferlen += 4; 1191 1192 DPRINTFN(10, ("sending mgt frame len=%d rate=%d xfer len=%d\n", 1193 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate, xferlen)); 1194 1195 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen, 1196 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof); 1197 1198 error = usbd_transfer(data->xfer); 1199 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1200 m_freem(m0); 1201 data->m = NULL; 1202 data->ni = NULL; 1203 return error; 1204 } 1205 1206 sc->tx_queued++; 1207 1208 return 0; 1209 } 1210 1211 static int 1212 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1213 const struct ieee80211_bpf_params *params) 1214 { 1215 struct ieee80211com *ic = &sc->sc_ic; 1216 struct rum_tx_desc *desc; 1217 struct rum_tx_data *data; 1218 uint32_t flags; 1219 usbd_status error; 1220 int xferlen, rate; 1221 1222 data = &sc->tx_data[0]; 1223 desc = (struct rum_tx_desc *)data->buf; 1224 1225 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1226 /* XXX validate */ 1227 if (rate == 0) { 1228 m_freem(m0); 1229 return EINVAL; 1230 } 1231 1232 if (bpf_peers_present(sc->sc_drvbpf)) { 1233 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1234 1235 tap->wt_flags = 0; 1236 tap->wt_rate = rate; 1237 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1238 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1239 tap->wt_antenna = sc->tx_ant; 1240 1241 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1242 } 1243 1244 data->m = m0; 1245 data->ni = ni; 1246 1247 flags = 0; 1248 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1249 flags |= RT2573_TX_NEED_ACK; 1250 1251 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE); 1252 /* XXX need to setup descriptor ourself */ 1253 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1254 1255 /* align end on a 4-bytes boundary */ 1256 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1257 1258 /* 1259 * No space left in the last URB to store the extra 4 bytes, force 1260 * sending of another URB. 1261 */ 1262 if ((xferlen % 64) == 0) 1263 xferlen += 4; 1264 1265 DPRINTFN(10, ("sending raw frame len=%u rate=%u xfer len=%u\n", 1266 m0->m_pkthdr.len, rate, xferlen)); 1267 1268 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, 1269 xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, 1270 rum_txeof); 1271 1272 error = usbd_transfer(data->xfer); 1273 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) 1274 return error; 1275 1276 sc->tx_queued++; 1277 1278 return 0; 1279 } 1280 1281 static int 1282 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1283 { 1284 struct ieee80211com *ic = &sc->sc_ic; 1285 struct rum_tx_desc *desc; 1286 struct rum_tx_data *data; 1287 struct ieee80211_frame *wh; 1288 struct ieee80211_key *k; 1289 uint32_t flags = 0; 1290 uint16_t dur; 1291 usbd_status error; 1292 int rate, xferlen; 1293 1294 wh = mtod(m0, struct ieee80211_frame *); 1295 1296 if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) 1297 rate = ic->ic_fixed_rate; 1298 else 1299 rate = ni->ni_rates.rs_rates[ni->ni_txrate]; 1300 1301 rate &= IEEE80211_RATE_VAL; 1302 1303 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1304 k = ieee80211_crypto_encap(ic, ni, m0); 1305 if (k == NULL) { 1306 m_freem(m0); 1307 return ENOBUFS; 1308 } 1309 1310 /* packet header may have moved, reset our local pointer */ 1311 wh = mtod(m0, struct ieee80211_frame *); 1312 } 1313 1314 data = &sc->tx_data[0]; 1315 desc = (struct rum_tx_desc *)data->buf; 1316 1317 data->m = m0; 1318 data->ni = ni; 1319 1320 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1321 flags |= RT2573_TX_NEED_ACK; 1322 flags |= RT2573_TX_MORE_FRAG; 1323 1324 dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate), 1325 ic->ic_flags) + sc->sifs; 1326 *(uint16_t *)wh->i_dur = htole16(dur); 1327 } 1328 1329 if (bpf_peers_present(sc->sc_drvbpf)) { 1330 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1331 1332 tap->wt_flags = 0; 1333 tap->wt_rate = rate; 1334 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1335 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1336 tap->wt_antenna = sc->tx_ant; 1337 1338 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1339 } 1340 1341 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE); 1342 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1343 1344 /* align end on a 4-bytes boundary */ 1345 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1346 1347 /* 1348 * No space left in the last URB to store the extra 4 bytes, force 1349 * sending of another URB. 1350 */ 1351 if ((xferlen % 64) == 0) 1352 xferlen += 4; 1353 1354 DPRINTFN(10, ("sending frame len=%d rate=%d xfer len=%d\n", 1355 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate, xferlen)); 1356 1357 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen, 1358 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof); 1359 1360 error = usbd_transfer(data->xfer); 1361 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1362 m_freem(m0); 1363 data->m = NULL; 1364 data->ni = NULL; 1365 return error; 1366 } 1367 1368 sc->tx_queued++; 1369 1370 return 0; 1371 } 1372 1373 static void 1374 rum_start(struct ifnet *ifp) 1375 { 1376 struct rum_softc *sc = ifp->if_softc; 1377 struct ieee80211com *ic = &sc->sc_ic; 1378 struct ieee80211_node *ni; 1379 struct mbuf *m0; 1380 struct ether_header *eh; 1381 1382 for (;;) { 1383 IF_POLL(&ic->ic_mgtq, m0); 1384 if (m0 != NULL) { 1385 if (sc->tx_queued >= RUM_TX_LIST_COUNT) { 1386 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1387 break; 1388 } 1389 IF_DEQUEUE(&ic->ic_mgtq, m0); 1390 1391 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1392 m0->m_pkthdr.rcvif = NULL; 1393 1394 if (bpf_peers_present(ic->ic_rawbpf)) 1395 bpf_mtap(ic->ic_rawbpf, m0); 1396 1397 if (rum_tx_mgt(sc, m0, ni) != 0) { 1398 ieee80211_free_node(ni); 1399 break; 1400 } 1401 } else { 1402 if (ic->ic_state != IEEE80211_S_RUN) 1403 break; 1404 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 1405 if (m0 == NULL) 1406 break; 1407 if (sc->tx_queued >= RUM_TX_LIST_COUNT) { 1408 IFQ_DRV_PREPEND(&ifp->if_snd, m0); 1409 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1410 break; 1411 } 1412 /* 1413 * Cancel any background scan. 1414 */ 1415 if (ic->ic_flags & IEEE80211_F_SCAN) 1416 ieee80211_cancel_scan(ic); 1417 1418 if (m0->m_len < sizeof (struct ether_header) && 1419 !(m0 = m_pullup(m0, sizeof (struct ether_header)))) 1420 continue; 1421 1422 eh = mtod(m0, struct ether_header *); 1423 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1424 if (ni == NULL) { 1425 m_freem(m0); 1426 continue; 1427 } 1428 BPF_MTAP(ifp, m0); 1429 1430 m0 = ieee80211_encap(ic, m0, ni); 1431 if (m0 == NULL) { 1432 ieee80211_free_node(ni); 1433 continue; 1434 } 1435 1436 if (bpf_peers_present(ic->ic_rawbpf)) 1437 bpf_mtap(ic->ic_rawbpf, m0); 1438 1439 if (rum_tx_data(sc, m0, ni) != 0) { 1440 ieee80211_free_node(ni); 1441 ifp->if_oerrors++; 1442 break; 1443 } 1444 } 1445 1446 sc->sc_tx_timer = 5; 1447 ic->ic_lastdata = ticks; 1448 callout_reset(&sc->watchdog_ch, hz, rum_watchdog, sc); 1449 } 1450 } 1451 1452 static void 1453 rum_watchdog(void *arg) 1454 { 1455 struct rum_softc *sc = arg; 1456 1457 RUM_LOCK(sc); 1458 1459 if (sc->sc_tx_timer > 0) { 1460 if (--sc->sc_tx_timer == 0) { 1461 device_printf(sc->sc_dev, "device timeout\n"); 1462 /*rum_init(ifp); XXX needs a process context! */ 1463 sc->sc_ifp->if_oerrors++; 1464 RUM_UNLOCK(sc); 1465 return; 1466 } 1467 callout_reset(&sc->watchdog_ch, hz, rum_watchdog, sc); 1468 } 1469 1470 RUM_UNLOCK(sc); 1471 } 1472 1473 static int 1474 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1475 { 1476 struct rum_softc *sc = ifp->if_softc; 1477 struct ieee80211com *ic = &sc->sc_ic; 1478 int error = 0; 1479 1480 RUM_LOCK(sc); 1481 1482 switch (cmd) { 1483 case SIOCSIFFLAGS: 1484 if (ifp->if_flags & IFF_UP) { 1485 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1486 rum_update_promisc(sc); 1487 else 1488 rum_init(sc); 1489 } else { 1490 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1491 rum_stop(sc); 1492 } 1493 break; 1494 default: 1495 error = ieee80211_ioctl(ic, cmd, data); 1496 } 1497 1498 if (error == ENETRESET) { 1499 if ((ifp->if_flags & IFF_UP) && 1500 (ifp->if_drv_flags & IFF_DRV_RUNNING) && 1501 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1502 rum_init(sc); 1503 error = 0; 1504 } 1505 1506 RUM_UNLOCK(sc); 1507 1508 return error; 1509 } 1510 1511 static void 1512 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1513 { 1514 usb_device_request_t req; 1515 usbd_status error; 1516 1517 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1518 req.bRequest = RT2573_READ_EEPROM; 1519 USETW(req.wValue, 0); 1520 USETW(req.wIndex, addr); 1521 USETW(req.wLength, len); 1522 1523 error = usbd_do_request(sc->sc_udev, &req, buf); 1524 if (error != 0) { 1525 printf("%s: could not read EEPROM: %s\n", 1526 device_get_nameunit(sc->sc_dev), usbd_errstr(error)); 1527 } 1528 } 1529 1530 static uint32_t 1531 rum_read(struct rum_softc *sc, uint16_t reg) 1532 { 1533 uint32_t val; 1534 1535 rum_read_multi(sc, reg, &val, sizeof val); 1536 1537 return le32toh(val); 1538 } 1539 1540 static void 1541 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1542 { 1543 usb_device_request_t req; 1544 usbd_status error; 1545 1546 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1547 req.bRequest = RT2573_READ_MULTI_MAC; 1548 USETW(req.wValue, 0); 1549 USETW(req.wIndex, reg); 1550 USETW(req.wLength, len); 1551 1552 error = usbd_do_request(sc->sc_udev, &req, buf); 1553 if (error != 0) { 1554 printf("%s: could not multi read MAC register: %s\n", 1555 device_get_nameunit(sc->sc_dev), usbd_errstr(error)); 1556 } 1557 } 1558 1559 static void 1560 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1561 { 1562 uint32_t tmp = htole32(val); 1563 1564 rum_write_multi(sc, reg, &tmp, sizeof tmp); 1565 } 1566 1567 static void 1568 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1569 { 1570 usb_device_request_t req; 1571 usbd_status error; 1572 1573 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1574 req.bRequest = RT2573_WRITE_MULTI_MAC; 1575 USETW(req.wValue, 0); 1576 USETW(req.wIndex, reg); 1577 USETW(req.wLength, len); 1578 1579 error = usbd_do_request(sc->sc_udev, &req, buf); 1580 if (error != 0) { 1581 printf("%s: could not multi write MAC register: %s\n", 1582 device_get_nameunit(sc->sc_dev), usbd_errstr(error)); 1583 } 1584 } 1585 1586 static void 1587 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1588 { 1589 uint32_t tmp; 1590 int ntries; 1591 1592 for (ntries = 0; ntries < 5; ntries++) { 1593 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1594 break; 1595 } 1596 if (ntries == 5) { 1597 printf("%s: could not write to BBP\n", 1598 device_get_nameunit(sc->sc_dev)); 1599 return; 1600 } 1601 1602 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1603 rum_write(sc, RT2573_PHY_CSR3, tmp); 1604 } 1605 1606 static uint8_t 1607 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1608 { 1609 uint32_t val; 1610 int ntries; 1611 1612 for (ntries = 0; ntries < 5; ntries++) { 1613 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1614 break; 1615 } 1616 if (ntries == 5) { 1617 printf("%s: could not read BBP\n", 1618 device_get_nameunit(sc->sc_dev)); 1619 return 0; 1620 } 1621 1622 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1623 rum_write(sc, RT2573_PHY_CSR3, val); 1624 1625 for (ntries = 0; ntries < 100; ntries++) { 1626 val = rum_read(sc, RT2573_PHY_CSR3); 1627 if (!(val & RT2573_BBP_BUSY)) 1628 return val & 0xff; 1629 DELAY(1); 1630 } 1631 1632 printf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev)); 1633 return 0; 1634 } 1635 1636 static void 1637 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1638 { 1639 uint32_t tmp; 1640 int ntries; 1641 1642 for (ntries = 0; ntries < 5; ntries++) { 1643 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1644 break; 1645 } 1646 if (ntries == 5) { 1647 printf("%s: could not write to RF\n", 1648 device_get_nameunit(sc->sc_dev)); 1649 return; 1650 } 1651 1652 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1653 (reg & 3); 1654 rum_write(sc, RT2573_PHY_CSR4, tmp); 1655 1656 /* remember last written value in sc */ 1657 sc->rf_regs[reg] = val; 1658 1659 DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff)); 1660 } 1661 1662 static void 1663 rum_select_antenna(struct rum_softc *sc) 1664 { 1665 uint8_t bbp4, bbp77; 1666 uint32_t tmp; 1667 1668 bbp4 = rum_bbp_read(sc, 4); 1669 bbp77 = rum_bbp_read(sc, 77); 1670 1671 /* TBD */ 1672 1673 /* make sure Rx is disabled before switching antenna */ 1674 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1675 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1676 1677 rum_bbp_write(sc, 4, bbp4); 1678 rum_bbp_write(sc, 77, bbp77); 1679 1680 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1681 } 1682 1683 /* 1684 * Enable multi-rate retries for frames sent at OFDM rates. 1685 * In 802.11b/g mode, allow fallback to CCK rates. 1686 */ 1687 static void 1688 rum_enable_mrr(struct rum_softc *sc) 1689 { 1690 struct ieee80211com *ic = &sc->sc_ic; 1691 uint32_t tmp; 1692 1693 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1694 1695 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1696 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) 1697 tmp |= RT2573_MRR_CCK_FALLBACK; 1698 tmp |= RT2573_MRR_ENABLED; 1699 1700 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1701 } 1702 1703 static void 1704 rum_set_txpreamble(struct rum_softc *sc) 1705 { 1706 uint32_t tmp; 1707 1708 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1709 1710 tmp &= ~RT2573_SHORT_PREAMBLE; 1711 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE) 1712 tmp |= RT2573_SHORT_PREAMBLE; 1713 1714 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1715 } 1716 1717 static void 1718 rum_set_basicrates(struct rum_softc *sc) 1719 { 1720 struct ieee80211com *ic = &sc->sc_ic; 1721 1722 /* update basic rate set */ 1723 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1724 /* 11b basic rates: 1, 2Mbps */ 1725 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1726 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) { 1727 /* 11a basic rates: 6, 12, 24Mbps */ 1728 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1729 } else { 1730 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1731 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1732 } 1733 } 1734 1735 /* 1736 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1737 * driver. 1738 */ 1739 static void 1740 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1741 { 1742 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1743 uint32_t tmp; 1744 1745 /* update all BBP registers that depend on the band */ 1746 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1747 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1748 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1749 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1750 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1751 } 1752 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1753 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1754 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1755 } 1756 1757 sc->bbp17 = bbp17; 1758 rum_bbp_write(sc, 17, bbp17); 1759 rum_bbp_write(sc, 96, bbp96); 1760 rum_bbp_write(sc, 104, bbp104); 1761 1762 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1763 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1764 rum_bbp_write(sc, 75, 0x80); 1765 rum_bbp_write(sc, 86, 0x80); 1766 rum_bbp_write(sc, 88, 0x80); 1767 } 1768 1769 rum_bbp_write(sc, 35, bbp35); 1770 rum_bbp_write(sc, 97, bbp97); 1771 rum_bbp_write(sc, 98, bbp98); 1772 1773 tmp = rum_read(sc, RT2573_PHY_CSR0); 1774 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1775 if (IEEE80211_IS_CHAN_2GHZ(c)) 1776 tmp |= RT2573_PA_PE_2GHZ; 1777 else 1778 tmp |= RT2573_PA_PE_5GHZ; 1779 rum_write(sc, RT2573_PHY_CSR0, tmp); 1780 1781 /* 802.11a uses a 16 microseconds short interframe space */ 1782 sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10; 1783 } 1784 1785 static void 1786 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1787 { 1788 struct ieee80211com *ic = &sc->sc_ic; 1789 const struct rfprog *rfprog; 1790 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1791 int8_t power; 1792 u_int i, chan; 1793 1794 chan = ieee80211_chan2ieee(ic, c); 1795 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1796 return; 1797 1798 /* select the appropriate RF settings based on what EEPROM says */ 1799 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1800 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1801 1802 /* find the settings for this channel (we know it exists) */ 1803 for (i = 0; rfprog[i].chan != chan; i++); 1804 1805 power = sc->txpow[i]; 1806 if (power < 0) { 1807 bbp94 += power; 1808 power = 0; 1809 } else if (power > 31) { 1810 bbp94 += power - 31; 1811 power = 31; 1812 } 1813 1814 /* 1815 * If we are switching from the 2GHz band to the 5GHz band or 1816 * vice-versa, BBP registers need to be reprogrammed. 1817 */ 1818 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1819 rum_select_band(sc, c); 1820 rum_select_antenna(sc); 1821 } 1822 ic->ic_curchan = c; 1823 1824 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1825 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1826 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1827 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1828 1829 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1830 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1831 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1832 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1833 1834 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1835 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1836 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1837 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1838 1839 DELAY(10); 1840 1841 /* enable smart mode for MIMO-capable RFs */ 1842 bbp3 = rum_bbp_read(sc, 3); 1843 1844 bbp3 &= ~RT2573_SMART_MODE; 1845 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1846 bbp3 |= RT2573_SMART_MODE; 1847 1848 rum_bbp_write(sc, 3, bbp3); 1849 1850 if (bbp94 != RT2573_BBPR94_DEFAULT) 1851 rum_bbp_write(sc, 94, bbp94); 1852 } 1853 1854 /* 1855 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1856 * and HostAP operating modes. 1857 */ 1858 static void 1859 rum_enable_tsf_sync(struct rum_softc *sc) 1860 { 1861 struct ieee80211com *ic = &sc->sc_ic; 1862 uint32_t tmp; 1863 1864 if (ic->ic_opmode != IEEE80211_M_STA) { 1865 /* 1866 * Change default 16ms TBTT adjustment to 8ms. 1867 * Must be done before enabling beacon generation. 1868 */ 1869 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1870 } 1871 1872 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1873 1874 /* set beacon interval (in 1/16ms unit) */ 1875 tmp |= ic->ic_bss->ni_intval * 16; 1876 1877 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1878 if (ic->ic_opmode == IEEE80211_M_STA) 1879 tmp |= RT2573_TSF_MODE(1); 1880 else 1881 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1882 1883 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1884 } 1885 1886 static void 1887 rum_update_slot(struct ifnet *ifp) 1888 { 1889 struct rum_softc *sc = ifp->if_softc; 1890 struct ieee80211com *ic = &sc->sc_ic; 1891 uint8_t slottime; 1892 uint32_t tmp; 1893 1894 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1895 1896 tmp = rum_read(sc, RT2573_MAC_CSR9); 1897 tmp = (tmp & ~0xff) | slottime; 1898 rum_write(sc, RT2573_MAC_CSR9, tmp); 1899 1900 DPRINTF(("setting slot time to %uus\n", slottime)); 1901 } 1902 1903 static void 1904 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1905 { 1906 uint32_t tmp; 1907 1908 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1909 rum_write(sc, RT2573_MAC_CSR4, tmp); 1910 1911 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1912 rum_write(sc, RT2573_MAC_CSR5, tmp); 1913 } 1914 1915 static void 1916 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1917 { 1918 uint32_t tmp; 1919 1920 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1921 rum_write(sc, RT2573_MAC_CSR2, tmp); 1922 1923 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1924 rum_write(sc, RT2573_MAC_CSR3, tmp); 1925 } 1926 1927 static void 1928 rum_update_promisc(struct rum_softc *sc) 1929 { 1930 struct ifnet *ifp = sc->sc_ic.ic_ifp; 1931 uint32_t tmp; 1932 1933 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1934 1935 tmp &= ~RT2573_DROP_NOT_TO_ME; 1936 if (!(ifp->if_flags & IFF_PROMISC)) 1937 tmp |= RT2573_DROP_NOT_TO_ME; 1938 1939 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1940 1941 DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1942 "entering" : "leaving")); 1943 } 1944 1945 static const char * 1946 rum_get_rf(int rev) 1947 { 1948 switch (rev) { 1949 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1950 case RT2573_RF_2528: return "RT2528"; 1951 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1952 case RT2573_RF_5226: return "RT5226"; 1953 default: return "unknown"; 1954 } 1955 } 1956 1957 static void 1958 rum_read_eeprom(struct rum_softc *sc) 1959 { 1960 struct ieee80211com *ic = &sc->sc_ic; 1961 uint16_t val; 1962 #ifdef RUM_DEBUG 1963 int i; 1964 #endif 1965 1966 /* read MAC address */ 1967 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6); 1968 1969 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1970 val = le16toh(val); 1971 sc->rf_rev = (val >> 11) & 0x1f; 1972 sc->hw_radio = (val >> 10) & 0x1; 1973 sc->rx_ant = (val >> 4) & 0x3; 1974 sc->tx_ant = (val >> 2) & 0x3; 1975 sc->nb_ant = val & 0x3; 1976 1977 DPRINTF(("RF revision=%d\n", sc->rf_rev)); 1978 1979 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1980 val = le16toh(val); 1981 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1982 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1983 1984 DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1985 sc->ext_2ghz_lna, sc->ext_5ghz_lna)); 1986 1987 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1988 val = le16toh(val); 1989 if ((val & 0xff) != 0xff) 1990 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1991 1992 /* Only [-10, 10] is valid */ 1993 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1994 sc->rssi_2ghz_corr = 0; 1995 1996 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1997 val = le16toh(val); 1998 if ((val & 0xff) != 0xff) 1999 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2000 2001 /* Only [-10, 10] is valid */ 2002 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2003 sc->rssi_5ghz_corr = 0; 2004 2005 if (sc->ext_2ghz_lna) 2006 sc->rssi_2ghz_corr -= 14; 2007 if (sc->ext_5ghz_lna) 2008 sc->rssi_5ghz_corr -= 14; 2009 2010 DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2011 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr)); 2012 2013 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2014 val = le16toh(val); 2015 if ((val & 0xff) != 0xff) 2016 sc->rffreq = val & 0xff; 2017 2018 DPRINTF(("RF freq=%d\n", sc->rffreq)); 2019 2020 /* read Tx power for all a/b/g channels */ 2021 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2022 /* XXX default Tx power for 802.11a channels */ 2023 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2024 #ifdef RUM_DEBUG 2025 for (i = 0; i < 14; i++) 2026 DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i])); 2027 #endif 2028 2029 /* read default values for BBP registers */ 2030 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2031 #ifdef RUM_DEBUG 2032 for (i = 0; i < 14; i++) { 2033 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2034 continue; 2035 DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2036 sc->bbp_prom[i].val)); 2037 } 2038 #endif 2039 } 2040 2041 static int 2042 rum_bbp_init(struct rum_softc *sc) 2043 { 2044 #define N(a) (sizeof (a) / sizeof ((a)[0])) 2045 int i, ntries; 2046 2047 /* wait for BBP to be ready */ 2048 for (ntries = 0; ntries < 100; ntries++) { 2049 const uint8_t val = rum_bbp_read(sc, 0); 2050 if (val != 0 && val != 0xff) 2051 break; 2052 DELAY(1000); 2053 } 2054 if (ntries == 100) { 2055 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2056 return EIO; 2057 } 2058 2059 /* initialize BBP registers to default values */ 2060 for (i = 0; i < N(rum_def_bbp); i++) 2061 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2062 2063 /* write vendor-specific BBP values (from EEPROM) */ 2064 for (i = 0; i < 16; i++) { 2065 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2066 continue; 2067 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2068 } 2069 2070 return 0; 2071 #undef N 2072 } 2073 2074 static void 2075 rum_init(void *priv) 2076 { 2077 #define N(a) (sizeof (a) / sizeof ((a)[0])) 2078 struct rum_softc *sc = priv; 2079 struct ieee80211com *ic = &sc->sc_ic; 2080 struct ifnet *ifp = ic->ic_ifp; 2081 struct rum_rx_data *data; 2082 uint32_t tmp; 2083 usbd_status error; 2084 int i, ntries; 2085 2086 rum_stop(sc); 2087 2088 /* initialize MAC registers to default values */ 2089 for (i = 0; i < N(rum_def_mac); i++) 2090 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2091 2092 /* set host ready */ 2093 rum_write(sc, RT2573_MAC_CSR1, 3); 2094 rum_write(sc, RT2573_MAC_CSR1, 0); 2095 2096 /* wait for BBP/RF to wakeup */ 2097 for (ntries = 0; ntries < 1000; ntries++) { 2098 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2099 break; 2100 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2101 DELAY(1000); 2102 } 2103 if (ntries == 1000) { 2104 printf("%s: timeout waiting for BBP/RF to wakeup\n", 2105 device_get_nameunit(sc->sc_dev)); 2106 goto fail; 2107 } 2108 2109 if ((error = rum_bbp_init(sc)) != 0) 2110 goto fail; 2111 2112 /* select default channel */ 2113 rum_select_band(sc, ic->ic_curchan); 2114 rum_select_antenna(sc); 2115 rum_set_chan(sc, ic->ic_curchan); 2116 2117 /* clear STA registers */ 2118 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2119 2120 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 2121 rum_set_macaddr(sc, ic->ic_myaddr); 2122 2123 /* initialize ASIC */ 2124 rum_write(sc, RT2573_MAC_CSR1, 4); 2125 2126 /* 2127 * Allocate xfer for AMRR statistics requests. 2128 */ 2129 sc->amrr_xfer = usbd_alloc_xfer(sc->sc_udev); 2130 if (sc->amrr_xfer == NULL) { 2131 printf("%s: could not allocate AMRR xfer\n", 2132 device_get_nameunit(sc->sc_dev)); 2133 goto fail; 2134 } 2135 2136 /* 2137 * Open Tx and Rx USB bulk pipes. 2138 */ 2139 error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE, 2140 &sc->sc_tx_pipeh); 2141 if (error != 0) { 2142 printf("%s: could not open Tx pipe: %s\n", 2143 device_get_nameunit(sc->sc_dev), usbd_errstr(error)); 2144 goto fail; 2145 } 2146 error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE, 2147 &sc->sc_rx_pipeh); 2148 if (error != 0) { 2149 printf("%s: could not open Rx pipe: %s\n", 2150 device_get_nameunit(sc->sc_dev), usbd_errstr(error)); 2151 goto fail; 2152 } 2153 2154 /* 2155 * Allocate Tx and Rx xfer queues. 2156 */ 2157 error = rum_alloc_tx_list(sc); 2158 if (error != 0) { 2159 printf("%s: could not allocate Tx list\n", 2160 device_get_nameunit(sc->sc_dev)); 2161 goto fail; 2162 } 2163 error = rum_alloc_rx_list(sc); 2164 if (error != 0) { 2165 printf("%s: could not allocate Rx list\n", 2166 device_get_nameunit(sc->sc_dev)); 2167 goto fail; 2168 } 2169 2170 /* 2171 * Start up the receive pipe. 2172 */ 2173 for (i = 0; i < RUM_RX_LIST_COUNT; i++) { 2174 data = &sc->rx_data[i]; 2175 2176 usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf, 2177 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof); 2178 usbd_transfer(data->xfer); 2179 } 2180 2181 /* update Rx filter */ 2182 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2183 2184 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2185 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2186 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2187 RT2573_DROP_ACKCTS; 2188 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2189 tmp |= RT2573_DROP_TODS; 2190 if (!(ifp->if_flags & IFF_PROMISC)) 2191 tmp |= RT2573_DROP_NOT_TO_ME; 2192 } 2193 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2194 2195 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2196 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2197 2198 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2199 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2200 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2201 } else 2202 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2203 2204 return; 2205 2206 fail: rum_stop(sc); 2207 #undef N 2208 } 2209 2210 static void 2211 rum_stop(void *priv) 2212 { 2213 struct rum_softc *sc = priv; 2214 struct ieee80211com *ic = &sc->sc_ic; 2215 struct ifnet *ifp = ic->ic_ifp; 2216 uint32_t tmp; 2217 2218 sc->sc_tx_timer = 0; 2219 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2220 2221 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2222 2223 /* disable Rx */ 2224 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2225 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2226 2227 /* reset ASIC */ 2228 rum_write(sc, RT2573_MAC_CSR1, 3); 2229 rum_write(sc, RT2573_MAC_CSR1, 0); 2230 2231 if (sc->amrr_xfer != NULL) { 2232 usbd_free_xfer(sc->amrr_xfer); 2233 sc->amrr_xfer = NULL; 2234 } 2235 2236 if (sc->sc_rx_pipeh != NULL) { 2237 usbd_abort_pipe(sc->sc_rx_pipeh); 2238 usbd_close_pipe(sc->sc_rx_pipeh); 2239 sc->sc_rx_pipeh = NULL; 2240 } 2241 if (sc->sc_tx_pipeh != NULL) { 2242 usbd_abort_pipe(sc->sc_tx_pipeh); 2243 usbd_close_pipe(sc->sc_tx_pipeh); 2244 sc->sc_tx_pipeh = NULL; 2245 } 2246 2247 rum_free_rx_list(sc); 2248 rum_free_tx_list(sc); 2249 } 2250 2251 static int 2252 rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size) 2253 { 2254 usb_device_request_t req; 2255 uint16_t reg = RT2573_MCU_CODE_BASE; 2256 usbd_status error; 2257 2258 /* copy firmware image into NIC */ 2259 for (; size >= 4; reg += 4, ucode += 4, size -= 4) 2260 rum_write(sc, reg, UGETDW(ucode)); 2261 2262 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2263 req.bRequest = RT2573_MCU_CNTL; 2264 USETW(req.wValue, RT2573_MCU_RUN); 2265 USETW(req.wIndex, 0); 2266 USETW(req.wLength, 0); 2267 2268 error = usbd_do_request(sc->sc_udev, &req, NULL); 2269 if (error != 0) { 2270 printf("%s: could not run firmware: %s\n", 2271 device_get_nameunit(sc->sc_dev), usbd_errstr(error)); 2272 } 2273 return error; 2274 } 2275 2276 static int 2277 rum_prepare_beacon(struct rum_softc *sc) 2278 { 2279 struct ieee80211com *ic = &sc->sc_ic; 2280 struct rum_tx_desc desc; 2281 struct mbuf *m0; 2282 int rate; 2283 2284 m0 = ieee80211_beacon_alloc(ic->ic_bss, &sc->sc_bo); 2285 if (m0 == NULL) { 2286 return ENOBUFS; 2287 } 2288 2289 /* send beacons at the lowest available rate */ 2290 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; 2291 2292 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2293 m0->m_pkthdr.len, rate); 2294 2295 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2296 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2297 2298 /* copy beacon header and payload into NIC memory */ 2299 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2300 m0->m_pkthdr.len); 2301 2302 m_freem(m0); 2303 2304 return 0; 2305 } 2306 2307 static int 2308 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2309 const struct ieee80211_bpf_params *params) 2310 { 2311 struct ieee80211com *ic = ni->ni_ic; 2312 struct ifnet *ifp = ic->ic_ifp; 2313 struct rum_softc *sc = ifp->if_softc; 2314 2315 /* prevent management frames from being sent if we're not ready */ 2316 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2317 m_freem(m); 2318 ieee80211_free_node(ni); 2319 return ENETDOWN; 2320 } 2321 if (sc->tx_queued >= RUM_TX_LIST_COUNT) { 2322 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2323 m_freem(m); 2324 ieee80211_free_node(ni); 2325 return EIO; 2326 } 2327 2328 if (bpf_peers_present(ic->ic_rawbpf)) 2329 bpf_mtap(ic->ic_rawbpf, m); 2330 2331 ifp->if_opackets++; 2332 2333 if (params == NULL) { 2334 /* 2335 * Legacy path; interpret frame contents to decide 2336 * precisely how to send the frame. 2337 */ 2338 if (rum_tx_mgt(sc, m, ni) != 0) 2339 goto bad; 2340 } else { 2341 /* 2342 * Caller supplied explicit parameters to use in 2343 * sending the frame. 2344 */ 2345 if (rum_tx_raw(sc, m, ni, params) != 0) 2346 goto bad; 2347 } 2348 sc->sc_tx_timer = 5; 2349 callout_reset(&sc->watchdog_ch, hz, rum_watchdog, sc); 2350 2351 return 0; 2352 bad: 2353 ifp->if_oerrors++; 2354 ieee80211_free_node(ni); 2355 return EIO; 2356 } 2357 2358 static void 2359 rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2360 { 2361 int i; 2362 2363 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2364 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2365 2366 ieee80211_amrr_node_init(&sc->amrr, &sc->amn); 2367 2368 /* set rate to some reasonable initial value */ 2369 for (i = ni->ni_rates.rs_nrates - 1; 2370 i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; 2371 i--); 2372 ni->ni_txrate = i; 2373 2374 callout_reset(&sc->amrr_ch, hz, rum_amrr_timeout, sc); 2375 } 2376 2377 static void 2378 rum_amrr_timeout(void *arg) 2379 { 2380 struct rum_softc *sc = (struct rum_softc *)arg; 2381 usb_device_request_t req; 2382 2383 /* 2384 * Asynchronously read statistic registers (cleared by read). 2385 */ 2386 req.bmRequestType = UT_READ_VENDOR_DEVICE; 2387 req.bRequest = RT2573_READ_MULTI_MAC; 2388 USETW(req.wValue, 0); 2389 USETW(req.wIndex, RT2573_STA_CSR0); 2390 USETW(req.wLength, sizeof sc->sta); 2391 2392 usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc, 2393 USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0, 2394 rum_amrr_update); 2395 (void)usbd_transfer(sc->amrr_xfer); 2396 } 2397 2398 static void 2399 rum_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv, 2400 usbd_status status) 2401 { 2402 struct rum_softc *sc = (struct rum_softc *)priv; 2403 struct ifnet *ifp = sc->sc_ic.ic_ifp; 2404 2405 if (status != USBD_NORMAL_COMPLETION) { 2406 device_printf(sc->sc_dev, "could not retrieve Tx statistics - " 2407 "cancelling automatic rate control\n"); 2408 return; 2409 } 2410 2411 /* count TX retry-fail as Tx errors */ 2412 ifp->if_oerrors += le32toh(sc->sta[5]) >> 16; 2413 2414 sc->amn.amn_retrycnt = 2415 (le32toh(sc->sta[4]) >> 16) + /* TX one-retry ok count */ 2416 (le32toh(sc->sta[5]) & 0xffff) + /* TX more-retry ok count */ 2417 (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2418 2419 sc->amn.amn_txcnt = 2420 sc->amn.amn_retrycnt + 2421 (le32toh(sc->sta[4]) & 0xffff); /* TX no-retry ok count */ 2422 2423 ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn); 2424 2425 callout_reset(&sc->amrr_ch, hz, rum_amrr_timeout, sc); 2426 } 2427 2428 static void 2429 rum_scan_start(struct ieee80211com *ic) 2430 { 2431 struct rum_softc *sc = ic->ic_ifp->if_softc; 2432 2433 usb_rem_task(sc->sc_udev, &sc->sc_scantask); 2434 2435 /* do it in a process context */ 2436 sc->sc_scan_action = RUM_SCAN_START; 2437 usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER); 2438 } 2439 2440 static void 2441 rum_scan_end(struct ieee80211com *ic) 2442 { 2443 struct rum_softc *sc = ic->ic_ifp->if_softc; 2444 2445 usb_rem_task(sc->sc_udev, &sc->sc_scantask); 2446 2447 /* do it in a process context */ 2448 sc->sc_scan_action = RUM_SCAN_END; 2449 usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER); 2450 } 2451 2452 static void 2453 rum_set_channel(struct ieee80211com *ic) 2454 { 2455 struct rum_softc *sc = ic->ic_ifp->if_softc; 2456 2457 usb_rem_task(sc->sc_udev, &sc->sc_scantask); 2458 2459 /* do it in a process context */ 2460 sc->sc_scan_action = RUM_SET_CHANNEL; 2461 usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER); 2462 } 2463 2464 static void 2465 rum_scantask(void *arg) 2466 { 2467 struct rum_softc *sc = arg; 2468 struct ieee80211com *ic = &sc->sc_ic; 2469 struct ifnet *ifp = ic->ic_ifp; 2470 uint32_t tmp; 2471 2472 RUM_LOCK(sc); 2473 2474 switch (sc->sc_scan_action) { 2475 case RUM_SCAN_START: 2476 /* abort TSF synchronization */ 2477 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2478 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2479 rum_set_bssid(sc, ifp->if_broadcastaddr); 2480 break; 2481 2482 case RUM_SCAN_END: 2483 rum_enable_tsf_sync(sc); 2484 /* XXX keep local copy */ 2485 rum_set_bssid(sc, ic->ic_bss->ni_bssid); 2486 break; 2487 2488 case RUM_SET_CHANNEL: 2489 mtx_lock(&Giant); 2490 rum_set_chan(sc, ic->ic_curchan); 2491 mtx_unlock(&Giant); 2492 break; 2493 2494 default: 2495 panic("unknown scan action %d\n", sc->sc_scan_action); 2496 /* NEVER REACHED */ 2497 break; 2498 } 2499 2500 RUM_UNLOCK(sc); 2501 } 2502 2503 static int 2504 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2505 { 2506 int lna, agc, rssi; 2507 2508 lna = (raw >> 5) & 0x3; 2509 agc = raw & 0x1f; 2510 2511 if (lna == 0) { 2512 /* 2513 * No RSSI mapping 2514 * 2515 * NB: Since RSSI is relative to noise floor, -1 is 2516 * adequate for caller to know error happened. 2517 */ 2518 return -1; 2519 } 2520 2521 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2522 2523 if (IEEE80211_IS_CHAN_2GHZ(sc->sc_ic.ic_curchan)) { 2524 rssi += sc->rssi_2ghz_corr; 2525 2526 if (lna == 1) 2527 rssi -= 64; 2528 else if (lna == 2) 2529 rssi -= 74; 2530 else if (lna == 3) 2531 rssi -= 90; 2532 } else { 2533 rssi += sc->rssi_5ghz_corr; 2534 2535 if (!sc->ext_5ghz_lna && lna != 1) 2536 rssi += 4; 2537 2538 if (lna == 1) 2539 rssi -= 64; 2540 else if (lna == 2) 2541 rssi -= 86; 2542 else if (lna == 3) 2543 rssi -= 100; 2544 } 2545 return rssi; 2546 } 2547 2548 static device_method_t rum_methods[] = { 2549 /* Device interface */ 2550 DEVMETHOD(device_probe, rum_match), 2551 DEVMETHOD(device_attach, rum_attach), 2552 DEVMETHOD(device_detach, rum_detach), 2553 2554 { 0, 0 } 2555 }; 2556 2557 static driver_t rum_driver = { 2558 "rum", 2559 rum_methods, 2560 sizeof(struct rum_softc) 2561 }; 2562 2563 static devclass_t rum_devclass; 2564 2565 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, usbd_driver_load, 0);
Cache object: a634e591107334840e7525acfc594082
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