if_rum.c revision 190526
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 190526 2009-03-29 17:59:14Z sam $ */ 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 190526 2009-03-29 17:59:14Z sam $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include "usbdevs.h" 30#include <dev/usb/usb.h> 31#include <dev/usb/usb_mfunc.h> 32#include <dev/usb/usb_error.h> 33 34#define USB_DEBUG_VAR rum_debug 35 36#include <dev/usb/usb_core.h> 37#include <dev/usb/usb_lookup.h> 38#include <dev/usb/usb_process.h> 39#include <dev/usb/usb_debug.h> 40#include <dev/usb/usb_request.h> 41#include <dev/usb/usb_busdma.h> 42#include <dev/usb/usb_util.h> 43 44#include <dev/usb/wlan/usb_wlan.h> 45#include <dev/usb/wlan/if_rumreg.h> 46#include <dev/usb/wlan/if_rumvar.h> 47#include <dev/usb/wlan/if_rumfw.h> 48 49#if USB_DEBUG 50static int rum_debug = 0; 51 52SYSCTL_NODE(_hw_usb2, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 53SYSCTL_INT(_hw_usb2_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 54 "Debug level"); 55#endif 56 57static const struct usb2_device_id rum_devs[] = { 58 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) }, 59 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) }, 60 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3) }, 61 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4) }, 62 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700) }, 63 { USB_VP(USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO) }, 64 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1) }, 65 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2) }, 66 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A) }, 67 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3) }, 68 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC) }, 69 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR) }, 70 { USB_VP(USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2) }, 71 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL) }, 72 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX) }, 73 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F) }, 74 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573) }, 75 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1) }, 76 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340) }, 77 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111) }, 78 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110) }, 79 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS) }, 80 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS) }, 81 { USB_VP(USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573) }, 82 { USB_VP(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573) }, 83 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB) }, 84 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) }, 85 { USB_VP(USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G) }, 86 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP) }, 87 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP) }, 88 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1) }, 89 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2) }, 90 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3) }, 91 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4) }, 92 { USB_VP(USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573) }, 93 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP) }, 94 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2) }, 95 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM) }, 96 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573) }, 97 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2) }, 98 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573) }, 99 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2) }, 100 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671) }, 101 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2) }, 102 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172) }, 103 { USB_VP(USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573) }, 104 { USB_VP(USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573) }, 105}; 106 107MODULE_DEPEND(rum, wlan, 1, 1, 1); 108MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 109MODULE_DEPEND(rum, usb, 1, 1, 1); 110 111static device_probe_t rum_match; 112static device_attach_t rum_attach; 113static device_detach_t rum_detach; 114 115static usb2_callback_t rum_bulk_read_callback; 116static usb2_callback_t rum_bulk_write_callback; 117 118static usb2_proc_callback_t rum_command_wrapper; 119static usb2_proc_callback_t rum_attach_post; 120static usb2_proc_callback_t rum_task; 121static usb2_proc_callback_t rum_scantask; 122static usb2_proc_callback_t rum_promisctask; 123static usb2_proc_callback_t rum_amrr_task; 124static usb2_proc_callback_t rum_init_task; 125static usb2_proc_callback_t rum_stop_task; 126static usb2_proc_callback_t rum_flush_task; 127 128static usb2_error_t rum_do_request(struct rum_softc *sc, 129 struct usb2_device_request *req, void *data); 130static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 131 const char name[IFNAMSIZ], int unit, int opmode, 132 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 133 const uint8_t mac[IEEE80211_ADDR_LEN]); 134static void rum_vap_delete(struct ieee80211vap *); 135static void rum_tx_free(struct rum_tx_data *, int); 136static void rum_setup_tx_list(struct rum_softc *); 137static void rum_unsetup_tx_list(struct rum_softc *); 138static int rum_newstate(struct ieee80211vap *, 139 enum ieee80211_state, int); 140static void rum_setup_tx_desc(struct rum_softc *, 141 struct rum_tx_desc *, uint32_t, uint16_t, int, 142 int); 143static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 144 struct ieee80211_node *); 145static int rum_tx_raw(struct rum_softc *, struct mbuf *, 146 struct ieee80211_node *, 147 const struct ieee80211_bpf_params *); 148static int rum_tx_data(struct rum_softc *, struct mbuf *, 149 struct ieee80211_node *); 150static void rum_start(struct ifnet *); 151static int rum_ioctl(struct ifnet *, u_long, caddr_t); 152static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 153 int); 154static uint32_t rum_read(struct rum_softc *, uint16_t); 155static void rum_read_multi(struct rum_softc *, uint16_t, void *, 156 int); 157static usb2_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 158static usb2_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 159 size_t); 160static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 161static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 162static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 163static void rum_select_antenna(struct rum_softc *); 164static void rum_enable_mrr(struct rum_softc *); 165static void rum_set_txpreamble(struct rum_softc *); 166static void rum_set_basicrates(struct rum_softc *); 167static void rum_select_band(struct rum_softc *, 168 struct ieee80211_channel *); 169static void rum_set_chan(struct rum_softc *, 170 struct ieee80211_channel *); 171static void rum_enable_tsf_sync(struct rum_softc *); 172static void rum_update_slot(struct ifnet *); 173static void rum_set_bssid(struct rum_softc *, const uint8_t *); 174static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 175static void rum_update_promisc(struct ifnet *); 176static const char *rum_get_rf(int); 177static void rum_read_eeprom(struct rum_softc *); 178static int rum_bbp_init(struct rum_softc *); 179static void rum_init(void *); 180static void rum_load_microcode(struct rum_softc *, const uint8_t *, 181 size_t); 182static int rum_prepare_beacon(struct rum_softc *, 183 struct ieee80211vap *); 184static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 185 const struct ieee80211_bpf_params *); 186static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 187 const uint8_t mac[IEEE80211_ADDR_LEN]); 188static void rum_newassoc(struct ieee80211_node *, int); 189static void rum_scan_start(struct ieee80211com *); 190static void rum_scan_end(struct ieee80211com *); 191static void rum_set_channel(struct ieee80211com *); 192static int rum_get_rssi(struct rum_softc *, uint8_t); 193static void rum_amrr_start(struct rum_softc *, 194 struct ieee80211_node *); 195static void rum_amrr_timeout(void *); 196static int rum_pause(struct rum_softc *, int); 197static void rum_queue_command(struct rum_softc *, 198 usb2_proc_callback_t *, struct usb2_proc_msg *, 199 struct usb2_proc_msg *); 200 201static const struct { 202 uint32_t reg; 203 uint32_t val; 204} rum_def_mac[] = { 205 { RT2573_TXRX_CSR0, 0x025fb032 }, 206 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 207 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 208 { RT2573_TXRX_CSR3, 0x00858687 }, 209 { RT2573_TXRX_CSR7, 0x2e31353b }, 210 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 211 { RT2573_TXRX_CSR15, 0x0000000f }, 212 { RT2573_MAC_CSR6, 0x00000fff }, 213 { RT2573_MAC_CSR8, 0x016c030a }, 214 { RT2573_MAC_CSR10, 0x00000718 }, 215 { RT2573_MAC_CSR12, 0x00000004 }, 216 { RT2573_MAC_CSR13, 0x00007f00 }, 217 { RT2573_SEC_CSR0, 0x00000000 }, 218 { RT2573_SEC_CSR1, 0x00000000 }, 219 { RT2573_SEC_CSR5, 0x00000000 }, 220 { RT2573_PHY_CSR1, 0x000023b0 }, 221 { RT2573_PHY_CSR5, 0x00040a06 }, 222 { RT2573_PHY_CSR6, 0x00080606 }, 223 { RT2573_PHY_CSR7, 0x00000408 }, 224 { RT2573_AIFSN_CSR, 0x00002273 }, 225 { RT2573_CWMIN_CSR, 0x00002344 }, 226 { RT2573_CWMAX_CSR, 0x000034aa } 227}; 228 229static const struct { 230 uint8_t reg; 231 uint8_t val; 232} rum_def_bbp[] = { 233 { 3, 0x80 }, 234 { 15, 0x30 }, 235 { 17, 0x20 }, 236 { 21, 0xc8 }, 237 { 22, 0x38 }, 238 { 23, 0x06 }, 239 { 24, 0xfe }, 240 { 25, 0x0a }, 241 { 26, 0x0d }, 242 { 32, 0x0b }, 243 { 34, 0x12 }, 244 { 37, 0x07 }, 245 { 39, 0xf8 }, 246 { 41, 0x60 }, 247 { 53, 0x10 }, 248 { 54, 0x18 }, 249 { 60, 0x10 }, 250 { 61, 0x04 }, 251 { 62, 0x04 }, 252 { 75, 0xfe }, 253 { 86, 0xfe }, 254 { 88, 0xfe }, 255 { 90, 0x0f }, 256 { 99, 0x00 }, 257 { 102, 0x16 }, 258 { 107, 0x04 } 259}; 260 261static const struct rfprog { 262 uint8_t chan; 263 uint32_t r1, r2, r3, r4; 264} rum_rf5226[] = { 265 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 266 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 267 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 268 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 269 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 270 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 271 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 272 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 273 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 274 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 275 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 276 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 277 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 278 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 279 280 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 281 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 282 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 283 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 284 285 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 286 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 287 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 288 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 289 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 290 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 291 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 292 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 293 294 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 295 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 296 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 297 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 298 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 299 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 300 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 301 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 302 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 303 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 304 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 305 306 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 307 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 308 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 309 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 310 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 311}, rum_rf5225[] = { 312 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 313 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 314 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 315 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 316 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 317 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 318 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 319 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 320 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 321 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 322 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 323 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 324 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 325 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 326 327 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 328 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 329 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 330 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 331 332 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 333 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 334 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 335 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 336 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 337 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 338 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 339 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 340 341 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 342 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 343 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 344 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 345 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 346 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 347 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 348 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 349 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 350 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 351 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 352 353 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 354 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 355 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 356 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 357 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 358}; 359 360static const struct usb2_config rum_config[RUM_N_TRANSFER] = { 361 [RUM_BULK_WR] = { 362 .type = UE_BULK, 363 .endpoint = UE_ADDR_ANY, 364 .direction = UE_DIR_OUT, 365 .mh.bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 366 .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 367 .mh.callback = rum_bulk_write_callback, 368 .mh.timeout = 5000, /* ms */ 369 }, 370 [RUM_BULK_RD] = { 371 .type = UE_BULK, 372 .endpoint = UE_ADDR_ANY, 373 .direction = UE_DIR_IN, 374 .mh.bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 375 .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 376 .mh.callback = rum_bulk_read_callback, 377 }, 378}; 379 380static int 381rum_match(device_t self) 382{ 383 struct usb2_attach_arg *uaa = device_get_ivars(self); 384 385 if (uaa->usb2_mode != USB_MODE_HOST) 386 return (ENXIO); 387 if (uaa->info.bConfigIndex != 0) 388 return (ENXIO); 389 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 390 return (ENXIO); 391 392 return (usb2_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 393} 394 395static int 396rum_attach(device_t self) 397{ 398 struct usb2_attach_arg *uaa = device_get_ivars(self); 399 struct rum_softc *sc = device_get_softc(self); 400 uint8_t iface_index; 401 int error; 402 403 device_set_usb2_desc(self); 404 sc->sc_udev = uaa->device; 405 sc->sc_dev = self; 406 407 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 408 MTX_NETWORK_LOCK, MTX_DEF); 409 410 cv_init(&sc->sc_cmd_cv, "wtxdone"); 411 412 iface_index = RT2573_IFACE_INDEX; 413 error = usb2_transfer_setup(uaa->device, &iface_index, 414 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 415 if (error) { 416 device_printf(self, "could not allocate USB transfers, " 417 "err=%s\n", usb2_errstr(error)); 418 goto detach; 419 } 420 error = usb2_proc_create(&sc->sc_tq, &sc->sc_mtx, 421 device_get_nameunit(self), USB_PRI_MED); 422 if (error) { 423 device_printf(self, "could not setup config thread!\n"); 424 goto detach; 425 } 426 427 /* fork rest of the attach code */ 428 RUM_LOCK(sc); 429 rum_queue_command(sc, rum_attach_post, 430 &sc->sc_synctask[0].hdr, 431 &sc->sc_synctask[1].hdr); 432 RUM_UNLOCK(sc); 433 return (0); 434 435detach: 436 rum_detach(self); 437 return (ENXIO); /* failure */ 438} 439 440static void 441rum_attach_post(struct usb2_proc_msg *pm) 442{ 443 struct rum_task *task = (struct rum_task *)pm; 444 struct rum_softc *sc = task->sc; 445 struct ifnet *ifp; 446 struct ieee80211com *ic; 447 unsigned int ntries; 448 uint32_t tmp; 449 uint8_t bands; 450 451 /* retrieve RT2573 rev. no */ 452 for (ntries = 0; ntries < 100; ntries++) { 453 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 454 break; 455 if (rum_pause(sc, hz / 100)) 456 break; 457 } 458 if (ntries == 100) { 459 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 460 return; 461 } 462 463 /* retrieve MAC address and various other things from EEPROM */ 464 rum_read_eeprom(sc); 465 466 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 467 tmp, rum_get_rf(sc->rf_rev)); 468 469 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 470 471 /* XXX Async attach race */ 472 if (usb2_proc_is_gone(&sc->sc_tq)) 473 return; 474 475 RUM_UNLOCK(sc); 476 477 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 478 if (ifp == NULL) { 479 device_printf(sc->sc_dev, "can not if_alloc()\n"); 480 RUM_LOCK(sc); 481 return; 482 } 483 ic = ifp->if_l2com; 484 485 ifp->if_softc = sc; 486 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 487 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 488 ifp->if_init = rum_init; 489 ifp->if_ioctl = rum_ioctl; 490 ifp->if_start = rum_start; 491 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 492 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 493 IFQ_SET_READY(&ifp->if_snd); 494 495 ic->ic_ifp = ifp; 496 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 497 498 /* set device capabilities */ 499 ic->ic_caps = 500 IEEE80211_C_STA /* station mode supported */ 501 | IEEE80211_C_IBSS /* IBSS mode supported */ 502 | IEEE80211_C_MONITOR /* monitor mode supported */ 503 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 504 | IEEE80211_C_TXPMGT /* tx power management */ 505 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 506 | IEEE80211_C_SHSLOT /* short slot time supported */ 507 | IEEE80211_C_BGSCAN /* bg scanning supported */ 508 | IEEE80211_C_WPA /* 802.11i */ 509 ; 510 511 bands = 0; 512 setbit(&bands, IEEE80211_MODE_11B); 513 setbit(&bands, IEEE80211_MODE_11G); 514 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 515 setbit(&bands, IEEE80211_MODE_11A); 516 ieee80211_init_channels(ic, NULL, &bands); 517 518 ieee80211_ifattach(ic, sc->sc_bssid); 519 ic->ic_update_promisc = rum_update_promisc; 520 ic->ic_newassoc = rum_newassoc; 521 ic->ic_raw_xmit = rum_raw_xmit; 522 ic->ic_node_alloc = rum_node_alloc; 523 ic->ic_scan_start = rum_scan_start; 524 ic->ic_scan_end = rum_scan_end; 525 ic->ic_set_channel = rum_set_channel; 526 527 ic->ic_vap_create = rum_vap_create; 528 ic->ic_vap_delete = rum_vap_delete; 529 530 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 531 532 bpfattach(ifp, DLT_IEEE802_11_RADIO, 533 sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap)); 534 535 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 536 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 537 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 538 539 sc->sc_txtap_len = sizeof sc->sc_txtap; 540 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 541 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 542 543 if (bootverbose) 544 ieee80211_announce(ic); 545 546 RUM_LOCK(sc); 547} 548 549static int 550rum_detach(device_t self) 551{ 552 struct rum_softc *sc = device_get_softc(self); 553 struct ifnet *ifp = sc->sc_ifp; 554 struct ieee80211com *ic; 555 556 /* wait for any post attach or other command to complete */ 557 usb2_proc_drain(&sc->sc_tq); 558 559 /* stop all USB transfers */ 560 usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 561 usb2_proc_free(&sc->sc_tq); 562 563 /* free TX list, if any */ 564 RUM_LOCK(sc); 565 rum_unsetup_tx_list(sc); 566 RUM_UNLOCK(sc); 567 568 if (ifp) { 569 ic = ifp->if_l2com; 570 bpfdetach(ifp); 571 ieee80211_ifdetach(ic); 572 if_free(ifp); 573 } 574 cv_destroy(&sc->sc_cmd_cv); 575 mtx_destroy(&sc->sc_mtx); 576 577 return (0); 578} 579 580static usb2_error_t 581rum_do_request(struct rum_softc *sc, 582 struct usb2_device_request *req, void *data) 583{ 584 usb2_error_t err; 585 int ntries = 10; 586 587 while (ntries--) { 588 err = usb2_do_request_proc(sc->sc_udev, &sc->sc_tq, 589 req, data, 0, NULL, 250 /* ms */); 590 if (err == 0) 591 break; 592 593 DPRINTFN(1, "Control request failed, %s (retrying)\n", 594 usb2_errstr(err)); 595 if (rum_pause(sc, hz / 100)) 596 break; 597 } 598 return (err); 599} 600 601static struct ieee80211vap * 602rum_vap_create(struct ieee80211com *ic, 603 const char name[IFNAMSIZ], int unit, int opmode, int flags, 604 const uint8_t bssid[IEEE80211_ADDR_LEN], 605 const uint8_t mac[IEEE80211_ADDR_LEN]) 606{ 607 struct rum_softc *sc = ic->ic_ifp->if_softc; 608 struct rum_vap *rvp; 609 struct ieee80211vap *vap; 610 611 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 612 return NULL; 613 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 614 M_80211_VAP, M_NOWAIT | M_ZERO); 615 if (rvp == NULL) 616 return NULL; 617 vap = &rvp->vap; 618 /* enable s/w bmiss handling for sta mode */ 619 ieee80211_vap_setup(ic, vap, name, unit, opmode, 620 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 621 622 /* override state transition machine */ 623 rvp->newstate = vap->iv_newstate; 624 vap->iv_newstate = rum_newstate; 625 626 rvp->sc = sc; 627 usb2_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 628 ieee80211_amrr_init(&rvp->amrr, vap, 629 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 630 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 631 1000 /* 1 sec */); 632 633 /* complete setup */ 634 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 635 ic->ic_opmode = opmode; 636 return vap; 637} 638 639static void 640rum_flush_task(struct usb2_proc_msg *pm) 641{ 642 /* Nothing to do */ 643} 644 645static void 646rum_vap_delete(struct ieee80211vap *vap) 647{ 648 struct rum_vap *rvp = RUM_VAP(vap); 649 struct rum_softc *sc = rvp->sc; 650 651 RUM_LOCK(sc); 652 /* wait for any pending tasks to complete */ 653 rum_queue_command(sc, rum_flush_task, 654 &sc->sc_synctask[0].hdr, 655 &sc->sc_synctask[1].hdr); 656 RUM_UNLOCK(sc); 657 658 usb2_callout_drain(&rvp->amrr_ch); 659 ieee80211_amrr_cleanup(&rvp->amrr); 660 ieee80211_vap_detach(vap); 661 free(rvp, M_80211_VAP); 662} 663 664static void 665rum_tx_free(struct rum_tx_data *data, int txerr) 666{ 667 struct rum_softc *sc = data->sc; 668 669 if (data->m != NULL) { 670 if (data->m->m_flags & M_TXCB) 671 ieee80211_process_callback(data->ni, data->m, 672 txerr ? ETIMEDOUT : 0); 673 m_freem(data->m); 674 data->m = NULL; 675 676 ieee80211_free_node(data->ni); 677 data->ni = NULL; 678 } 679 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 680 sc->tx_nfree++; 681} 682 683static void 684rum_setup_tx_list(struct rum_softc *sc) 685{ 686 struct rum_tx_data *data; 687 int i; 688 689 sc->tx_nfree = 0; 690 STAILQ_INIT(&sc->tx_q); 691 STAILQ_INIT(&sc->tx_free); 692 693 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 694 data = &sc->tx_data[i]; 695 696 data->sc = sc; 697 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 698 sc->tx_nfree++; 699 } 700} 701 702static void 703rum_unsetup_tx_list(struct rum_softc *sc) 704{ 705 struct rum_tx_data *data; 706 int i; 707 708 /* make sure any subsequent use of the queues will fail */ 709 sc->tx_nfree = 0; 710 STAILQ_INIT(&sc->tx_q); 711 STAILQ_INIT(&sc->tx_free); 712 713 /* free up all node references and mbufs */ 714 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 715 data = &sc->tx_data[i]; 716 717 if (data->m != NULL) { 718 m_freem(data->m); 719 data->m = NULL; 720 } 721 if (data->ni != NULL) { 722 ieee80211_free_node(data->ni); 723 data->ni = NULL; 724 } 725 } 726} 727 728static void 729rum_task(struct usb2_proc_msg *pm) 730{ 731 struct rum_task *task = (struct rum_task *)pm; 732 struct rum_softc *sc = task->sc; 733 struct ifnet *ifp = sc->sc_ifp; 734 struct ieee80211com *ic = ifp->if_l2com; 735 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 736 struct rum_vap *rvp = RUM_VAP(vap); 737 const struct ieee80211_txparam *tp; 738 enum ieee80211_state ostate; 739 struct ieee80211_node *ni; 740 uint32_t tmp; 741 742 ostate = vap->iv_state; 743 744 switch (sc->sc_state) { 745 case IEEE80211_S_INIT: 746 if (ostate == IEEE80211_S_RUN) { 747 /* abort TSF synchronization */ 748 tmp = rum_read(sc, RT2573_TXRX_CSR9); 749 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 750 } 751 break; 752 753 case IEEE80211_S_RUN: 754 ni = vap->iv_bss; 755 756 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 757 rum_update_slot(ic->ic_ifp); 758 rum_enable_mrr(sc); 759 rum_set_txpreamble(sc); 760 rum_set_basicrates(sc); 761 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 762 rum_set_bssid(sc, sc->sc_bssid); 763 } 764 765 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 766 vap->iv_opmode == IEEE80211_M_IBSS) 767 rum_prepare_beacon(sc, vap); 768 769 if (vap->iv_opmode != IEEE80211_M_MONITOR) 770 rum_enable_tsf_sync(sc); 771 772 /* enable automatic rate adaptation */ 773 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 774 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 775 rum_amrr_start(sc, ni); 776 break; 777 default: 778 break; 779 } 780 781 RUM_UNLOCK(sc); 782 IEEE80211_LOCK(ic); 783 rvp->newstate(vap, sc->sc_state, sc->sc_arg); 784 if (vap->iv_newstate_cb != NULL) 785 vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg); 786 IEEE80211_UNLOCK(ic); 787 RUM_LOCK(sc); 788} 789 790static int 791rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 792{ 793 struct rum_vap *rvp = RUM_VAP(vap); 794 struct ieee80211com *ic = vap->iv_ic; 795 struct rum_softc *sc = ic->ic_ifp->if_softc; 796 797 DPRINTF("%s -> %s\n", 798 ieee80211_state_name[vap->iv_state], 799 ieee80211_state_name[nstate]); 800 801 RUM_LOCK(sc); 802 usb2_callout_stop(&rvp->amrr_ch); 803 804 /* do it in a process context */ 805 sc->sc_state = nstate; 806 sc->sc_arg = arg; 807 RUM_UNLOCK(sc); 808 809 if (nstate == IEEE80211_S_INIT) { 810 rvp->newstate(vap, nstate, arg); 811 return 0; 812 } else { 813 RUM_LOCK(sc); 814 rum_queue_command(sc, rum_task, &sc->sc_task[0].hdr, 815 &sc->sc_task[1].hdr); 816 RUM_UNLOCK(sc); 817 return EINPROGRESS; 818 } 819} 820 821static void 822rum_bulk_write_callback(struct usb2_xfer *xfer) 823{ 824 struct rum_softc *sc = xfer->priv_sc; 825 struct ifnet *ifp = sc->sc_ifp; 826 struct ieee80211com *ic = ifp->if_l2com; 827 struct ieee80211_channel *c = ic->ic_curchan; 828 struct rum_tx_data *data; 829 struct mbuf *m; 830 unsigned int len; 831 832 /* wakeup waiting command, if any */ 833 if (sc->sc_last_task != NULL) 834 cv_signal(&sc->sc_cmd_cv); 835 836 switch (USB_GET_STATE(xfer)) { 837 case USB_ST_TRANSFERRED: 838 DPRINTFN(11, "transfer complete, %d bytes\n", xfer->actlen); 839 840 /* free resources */ 841 data = xfer->priv_fifo; 842 rum_tx_free(data, 0); 843 xfer->priv_fifo = NULL; 844 845 ifp->if_opackets++; 846 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 847 848 /* FALLTHROUGH */ 849 case USB_ST_SETUP: 850tr_setup: 851 /* wait for command to complete, if any */ 852 if (sc->sc_last_task != NULL) 853 break; 854 855 data = STAILQ_FIRST(&sc->tx_q); 856 if (data) { 857 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 858 m = data->m; 859 860 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 861 DPRINTFN(0, "data overflow, %u bytes\n", 862 m->m_pkthdr.len); 863 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 864 } 865 usb2_copy_in(xfer->frbuffers, 0, &data->desc, 866 RT2573_TX_DESC_SIZE); 867 usb2_m_copy_in(xfer->frbuffers, RT2573_TX_DESC_SIZE, m, 868 0, m->m_pkthdr.len); 869 870 if (bpf_peers_present(ifp->if_bpf)) { 871 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 872 873 tap->wt_flags = 0; 874 tap->wt_rate = data->rate; 875 tap->wt_chan_freq = htole16(c->ic_freq); 876 tap->wt_chan_flags = htole16(c->ic_flags); 877 tap->wt_antenna = sc->tx_ant; 878 879 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m); 880 } 881 882 /* align end on a 4-bytes boundary */ 883 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 884 if ((len % 64) == 0) 885 len += 4; 886 887 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 888 m->m_pkthdr.len, len); 889 890 xfer->frlengths[0] = len; 891 xfer->priv_fifo = data; 892 893 usb2_start_hardware(xfer); 894 } 895 break; 896 897 default: /* Error */ 898 DPRINTFN(11, "transfer error, %s\n", 899 usb2_errstr(xfer->error)); 900 901 ifp->if_oerrors++; 902 data = xfer->priv_fifo; 903 if (data != NULL) { 904 rum_tx_free(data, xfer->error); 905 xfer->priv_fifo = NULL; 906 } 907 908 if (xfer->error == USB_ERR_STALLED) { 909 /* try to clear stall first */ 910 xfer->flags.stall_pipe = 1; 911 goto tr_setup; 912 } 913 if (xfer->error == USB_ERR_TIMEOUT) 914 device_printf(sc->sc_dev, "device timeout\n"); 915 break; 916 } 917} 918 919static void 920rum_bulk_read_callback(struct usb2_xfer *xfer) 921{ 922 struct rum_softc *sc = xfer->priv_sc; 923 struct ifnet *ifp = sc->sc_ifp; 924 struct ieee80211com *ic = ifp->if_l2com; 925 struct ieee80211_node *ni; 926 struct mbuf *m = NULL; 927 uint32_t flags; 928 uint8_t rssi = 0; 929 unsigned int len; 930 931 switch (USB_GET_STATE(xfer)) { 932 case USB_ST_TRANSFERRED: 933 934 DPRINTFN(15, "rx done, actlen=%d\n", xfer->actlen); 935 936 len = xfer->actlen; 937 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 938 DPRINTF("%s: xfer too short %d\n", 939 device_get_nameunit(sc->sc_dev), len); 940 ifp->if_ierrors++; 941 goto tr_setup; 942 } 943 944 len -= RT2573_RX_DESC_SIZE; 945 usb2_copy_out(xfer->frbuffers, 0, &sc->sc_rx_desc, 946 RT2573_RX_DESC_SIZE); 947 948 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 949 flags = le32toh(sc->sc_rx_desc.flags); 950 if (flags & RT2573_RX_CRC_ERROR) { 951 /* 952 * This should not happen since we did not 953 * request to receive those frames when we 954 * filled RUM_TXRX_CSR2: 955 */ 956 DPRINTFN(5, "PHY or CRC error\n"); 957 ifp->if_ierrors++; 958 goto tr_setup; 959 } 960 961 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 962 if (m == NULL) { 963 DPRINTF("could not allocate mbuf\n"); 964 ifp->if_ierrors++; 965 goto tr_setup; 966 } 967 usb2_copy_out(xfer->frbuffers, RT2573_RX_DESC_SIZE, 968 mtod(m, uint8_t *), len); 969 970 /* finalize mbuf */ 971 m->m_pkthdr.rcvif = ifp; 972 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 973 974 if (bpf_peers_present(ifp->if_bpf)) { 975 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 976 977 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 978 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 979 (flags & RT2573_RX_OFDM) ? 980 IEEE80211_T_OFDM : IEEE80211_T_CCK); 981 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 982 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 983 tap->wr_antenna = sc->rx_ant; 984 tap->wr_antsignal = rssi; 985 986 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 987 } 988 /* FALLTHROUGH */ 989 case USB_ST_SETUP: 990tr_setup: 991 xfer->frlengths[0] = xfer->max_data_length; 992 usb2_start_hardware(xfer); 993 994 /* 995 * At the end of a USB callback it is always safe to unlock 996 * the private mutex of a device! That is why we do the 997 * "ieee80211_input" here, and not some lines up! 998 */ 999 if (m) { 1000 RUM_UNLOCK(sc); 1001 ni = ieee80211_find_rxnode(ic, 1002 mtod(m, struct ieee80211_frame_min *)); 1003 if (ni != NULL) { 1004 (void) ieee80211_input(ni, m, rssi, 1005 RT2573_NOISE_FLOOR, 0); 1006 ieee80211_free_node(ni); 1007 } else 1008 (void) ieee80211_input_all(ic, m, rssi, 1009 RT2573_NOISE_FLOOR, 0); 1010 RUM_LOCK(sc); 1011 } 1012 return; 1013 1014 default: /* Error */ 1015 if (xfer->error != USB_ERR_CANCELLED) { 1016 /* try to clear stall first */ 1017 xfer->flags.stall_pipe = 1; 1018 goto tr_setup; 1019 } 1020 return; 1021 } 1022} 1023 1024static uint8_t 1025rum_plcp_signal(int rate) 1026{ 1027 switch (rate) { 1028 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1029 case 12: return 0xb; 1030 case 18: return 0xf; 1031 case 24: return 0xa; 1032 case 36: return 0xe; 1033 case 48: return 0x9; 1034 case 72: return 0xd; 1035 case 96: return 0x8; 1036 case 108: return 0xc; 1037 1038 /* CCK rates (NB: not IEEE std, device-specific) */ 1039 case 2: return 0x0; 1040 case 4: return 0x1; 1041 case 11: return 0x2; 1042 case 22: return 0x3; 1043 } 1044 return 0xff; /* XXX unsupported/unknown rate */ 1045} 1046 1047static void 1048rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1049 uint32_t flags, uint16_t xflags, int len, int rate) 1050{ 1051 struct ifnet *ifp = sc->sc_ifp; 1052 struct ieee80211com *ic = ifp->if_l2com; 1053 uint16_t plcp_length; 1054 int remainder; 1055 1056 desc->flags = htole32(flags); 1057 desc->flags |= htole32(RT2573_TX_VALID); 1058 desc->flags |= htole32(len << 16); 1059 1060 desc->xflags = htole16(xflags); 1061 1062 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1063 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1064 1065 /* setup PLCP fields */ 1066 desc->plcp_signal = rum_plcp_signal(rate); 1067 desc->plcp_service = 4; 1068 1069 len += IEEE80211_CRC_LEN; 1070 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) { 1071 desc->flags |= htole32(RT2573_TX_OFDM); 1072 1073 plcp_length = len & 0xfff; 1074 desc->plcp_length_hi = plcp_length >> 6; 1075 desc->plcp_length_lo = plcp_length & 0x3f; 1076 } else { 1077 plcp_length = (16 * len + rate - 1) / rate; 1078 if (rate == 22) { 1079 remainder = (16 * len) % 22; 1080 if (remainder != 0 && remainder < 7) 1081 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1082 } 1083 desc->plcp_length_hi = plcp_length >> 8; 1084 desc->plcp_length_lo = plcp_length & 0xff; 1085 1086 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1087 desc->plcp_signal |= 0x08; 1088 } 1089} 1090 1091static int 1092rum_sendprot(struct rum_softc *sc, 1093 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1094{ 1095 struct ieee80211com *ic = ni->ni_ic; 1096 const struct ieee80211_frame *wh; 1097 struct rum_tx_data *data; 1098 struct mbuf *mprot; 1099 int protrate, ackrate, pktlen, flags, isshort; 1100 uint16_t dur; 1101 1102 RUM_LOCK_ASSERT(sc, MA_OWNED); 1103 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1104 ("protection %d", prot)); 1105 1106 wh = mtod(m, const struct ieee80211_frame *); 1107 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1108 1109 protrate = ieee80211_ctl_rate(sc->sc_rates, rate); 1110 ackrate = ieee80211_ack_rate(sc->sc_rates, rate); 1111 1112 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1113 dur = ieee80211_compute_duration(sc->sc_rates, pktlen, rate, isshort); 1114 + ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1115 flags = RT2573_TX_MORE_FRAG; 1116 if (prot == IEEE80211_PROT_RTSCTS) { 1117 /* NB: CTS is the same size as an ACK */ 1118 dur += ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1119 flags |= RT2573_TX_NEED_ACK; 1120 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1121 } else { 1122 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1123 } 1124 if (mprot == NULL) { 1125 /* XXX stat + msg */ 1126 return (ENOBUFS); 1127 } 1128 data = STAILQ_FIRST(&sc->tx_free); 1129 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1130 sc->tx_nfree--; 1131 1132 data->m = mprot; 1133 data->ni = ieee80211_ref_node(ni); 1134 data->rate = protrate; 1135 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1136 1137 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1138 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1139 1140 return 0; 1141} 1142 1143static int 1144rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1145{ 1146 struct ieee80211vap *vap = ni->ni_vap; 1147 struct ifnet *ifp = sc->sc_ifp; 1148 struct ieee80211com *ic = ifp->if_l2com; 1149 struct rum_tx_data *data; 1150 struct ieee80211_frame *wh; 1151 const struct ieee80211_txparam *tp; 1152 struct ieee80211_key *k; 1153 uint32_t flags = 0; 1154 uint16_t dur; 1155 1156 RUM_LOCK_ASSERT(sc, MA_OWNED); 1157 1158 data = STAILQ_FIRST(&sc->tx_free); 1159 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1160 sc->tx_nfree--; 1161 1162 wh = mtod(m0, struct ieee80211_frame *); 1163 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1164 k = ieee80211_crypto_encap(ni, m0); 1165 if (k == NULL) { 1166 m_freem(m0); 1167 return ENOBUFS; 1168 } 1169 wh = mtod(m0, struct ieee80211_frame *); 1170 } 1171 1172 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1173 1174 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1175 flags |= RT2573_TX_NEED_ACK; 1176 1177 dur = ieee80211_ack_duration(sc->sc_rates, tp->mgmtrate, 1178 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1179 *(uint16_t *)wh->i_dur = htole16(dur); 1180 1181 /* tell hardware to add timestamp for probe responses */ 1182 if ((wh->i_fc[0] & 1183 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1184 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1185 flags |= RT2573_TX_TIMESTAMP; 1186 } 1187 1188 data->m = m0; 1189 data->ni = ni; 1190 data->rate = tp->mgmtrate; 1191 1192 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1193 1194 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1195 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1196 1197 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1198 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1199 1200 return (0); 1201} 1202 1203static int 1204rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1205 const struct ieee80211_bpf_params *params) 1206{ 1207 struct rum_tx_data *data; 1208 uint32_t flags; 1209 int rate, error; 1210 1211 RUM_LOCK_ASSERT(sc, MA_OWNED); 1212 KASSERT(params != NULL, ("no raw xmit params")); 1213 1214 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1215 /* XXX validate */ 1216 if (rate == 0) { 1217 m_freem(m0); 1218 return EINVAL; 1219 } 1220 flags = 0; 1221 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1222 flags |= RT2573_TX_NEED_ACK; 1223 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1224 error = rum_sendprot(sc, m0, ni, 1225 params->ibp_flags & IEEE80211_BPF_RTS ? 1226 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1227 rate); 1228 if (error || sc->tx_nfree == 0) { 1229 m_freem(m0); 1230 return ENOBUFS; 1231 } 1232 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1233 } 1234 1235 data = STAILQ_FIRST(&sc->tx_free); 1236 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1237 sc->tx_nfree--; 1238 1239 data->m = m0; 1240 data->ni = ni; 1241 data->rate = rate; 1242 1243 /* XXX need to setup descriptor ourself */ 1244 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1245 1246 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1247 m0->m_pkthdr.len, rate); 1248 1249 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1250 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1251 1252 return 0; 1253} 1254 1255static int 1256rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1257{ 1258 struct ieee80211vap *vap = ni->ni_vap; 1259 struct ifnet *ifp = sc->sc_ifp; 1260 struct ieee80211com *ic = ifp->if_l2com; 1261 struct rum_tx_data *data; 1262 struct ieee80211_frame *wh; 1263 const struct ieee80211_txparam *tp; 1264 struct ieee80211_key *k; 1265 uint32_t flags = 0; 1266 uint16_t dur; 1267 int error, rate; 1268 1269 RUM_LOCK_ASSERT(sc, MA_OWNED); 1270 1271 wh = mtod(m0, struct ieee80211_frame *); 1272 1273 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1274 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1275 rate = tp->mcastrate; 1276 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1277 rate = tp->ucastrate; 1278 else 1279 rate = ni->ni_txrate; 1280 1281 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1282 k = ieee80211_crypto_encap(ni, m0); 1283 if (k == NULL) { 1284 m_freem(m0); 1285 return ENOBUFS; 1286 } 1287 1288 /* packet header may have moved, reset our local pointer */ 1289 wh = mtod(m0, struct ieee80211_frame *); 1290 } 1291 1292 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1293 int prot = IEEE80211_PROT_NONE; 1294 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1295 prot = IEEE80211_PROT_RTSCTS; 1296 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1297 ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) 1298 prot = ic->ic_protmode; 1299 if (prot != IEEE80211_PROT_NONE) { 1300 error = rum_sendprot(sc, m0, ni, prot, rate); 1301 if (error || sc->tx_nfree == 0) { 1302 m_freem(m0); 1303 return ENOBUFS; 1304 } 1305 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1306 } 1307 } 1308 1309 data = STAILQ_FIRST(&sc->tx_free); 1310 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1311 sc->tx_nfree--; 1312 1313 data->m = m0; 1314 data->ni = ni; 1315 data->rate = rate; 1316 1317 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1318 flags |= RT2573_TX_NEED_ACK; 1319 flags |= RT2573_TX_MORE_FRAG; 1320 1321 dur = ieee80211_ack_duration(sc->sc_rates, rate, 1322 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1323 *(uint16_t *)wh->i_dur = htole16(dur); 1324 } 1325 1326 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1327 1328 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1329 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1330 1331 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1332 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1333 1334 return 0; 1335} 1336 1337static void 1338rum_start(struct ifnet *ifp) 1339{ 1340 struct rum_softc *sc = ifp->if_softc; 1341 struct ieee80211_node *ni; 1342 struct mbuf *m; 1343 1344 RUM_LOCK(sc); 1345 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1346 RUM_UNLOCK(sc); 1347 return; 1348 } 1349 for (;;) { 1350 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1351 if (m == NULL) 1352 break; 1353 if (sc->tx_nfree < RUM_TX_MINFREE) { 1354 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1355 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1356 break; 1357 } 1358 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1359 m = ieee80211_encap(ni, m); 1360 if (m == NULL) { 1361 ieee80211_free_node(ni); 1362 ifp->if_oerrors++; 1363 continue; 1364 } 1365 if (rum_tx_data(sc, m, ni) != 0) { 1366 ieee80211_free_node(ni); 1367 ifp->if_oerrors++; 1368 break; 1369 } 1370 } 1371 RUM_UNLOCK(sc); 1372} 1373 1374static int 1375rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1376{ 1377 struct rum_softc *sc = ifp->if_softc; 1378 struct ieee80211com *ic = ifp->if_l2com; 1379 struct ifreq *ifr = (struct ifreq *) data; 1380 int error = 0, startall = 0; 1381 1382 switch (cmd) { 1383 case SIOCSIFFLAGS: 1384 RUM_LOCK(sc); 1385 if (ifp->if_flags & IFF_UP) { 1386 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1387 rum_queue_command(sc, rum_init_task, 1388 &sc->sc_synctask[0].hdr, 1389 &sc->sc_synctask[1].hdr); 1390 startall = 1; 1391 } else 1392 rum_queue_command(sc, rum_promisctask, 1393 &sc->sc_promisctask[0].hdr, 1394 &sc->sc_promisctask[1].hdr); 1395 } else { 1396 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1397 rum_queue_command(sc, rum_stop_task, 1398 &sc->sc_synctask[0].hdr, 1399 &sc->sc_synctask[1].hdr); 1400 } 1401 } 1402 RUM_UNLOCK(sc); 1403 if (startall) 1404 ieee80211_start_all(ic); 1405 break; 1406 case SIOCGIFMEDIA: 1407 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1408 break; 1409 case SIOCGIFADDR: 1410 error = ether_ioctl(ifp, cmd, data); 1411 break; 1412 default: 1413 error = EINVAL; 1414 break; 1415 } 1416 return error; 1417} 1418 1419static void 1420rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1421{ 1422 struct usb2_device_request req; 1423 usb2_error_t error; 1424 1425 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1426 req.bRequest = RT2573_READ_EEPROM; 1427 USETW(req.wValue, 0); 1428 USETW(req.wIndex, addr); 1429 USETW(req.wLength, len); 1430 1431 error = rum_do_request(sc, &req, buf); 1432 if (error != 0) { 1433 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1434 usb2_errstr(error)); 1435 } 1436} 1437 1438static uint32_t 1439rum_read(struct rum_softc *sc, uint16_t reg) 1440{ 1441 uint32_t val; 1442 1443 rum_read_multi(sc, reg, &val, sizeof val); 1444 1445 return le32toh(val); 1446} 1447 1448static void 1449rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1450{ 1451 struct usb2_device_request req; 1452 usb2_error_t error; 1453 1454 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1455 req.bRequest = RT2573_READ_MULTI_MAC; 1456 USETW(req.wValue, 0); 1457 USETW(req.wIndex, reg); 1458 USETW(req.wLength, len); 1459 1460 error = rum_do_request(sc, &req, buf); 1461 if (error != 0) { 1462 device_printf(sc->sc_dev, 1463 "could not multi read MAC register: %s\n", 1464 usb2_errstr(error)); 1465 } 1466} 1467 1468static usb2_error_t 1469rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1470{ 1471 uint32_t tmp = htole32(val); 1472 1473 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1474} 1475 1476static usb2_error_t 1477rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1478{ 1479 struct usb2_device_request req; 1480 usb2_error_t error; 1481 1482 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1483 req.bRequest = RT2573_WRITE_MULTI_MAC; 1484 USETW(req.wValue, 0); 1485 USETW(req.wIndex, reg); 1486 USETW(req.wLength, len); 1487 1488 error = rum_do_request(sc, &req, buf); 1489 if (error != 0) { 1490 device_printf(sc->sc_dev, 1491 "could not multi write MAC register: %s\n", 1492 usb2_errstr(error)); 1493 } 1494 return (error); 1495} 1496 1497static void 1498rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1499{ 1500 uint32_t tmp; 1501 int ntries; 1502 1503 DPRINTFN(2, "reg=0x%08x\n", reg); 1504 1505 for (ntries = 0; ntries < 100; ntries++) { 1506 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1507 break; 1508 if (rum_pause(sc, hz / 100)) 1509 break; 1510 } 1511 if (ntries == 100) { 1512 device_printf(sc->sc_dev, "could not write to BBP\n"); 1513 return; 1514 } 1515 1516 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1517 rum_write(sc, RT2573_PHY_CSR3, tmp); 1518} 1519 1520static uint8_t 1521rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1522{ 1523 uint32_t val; 1524 int ntries; 1525 1526 DPRINTFN(2, "reg=0x%08x\n", reg); 1527 1528 for (ntries = 0; ntries < 100; ntries++) { 1529 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1530 break; 1531 if (rum_pause(sc, hz / 100)) 1532 break; 1533 } 1534 if (ntries == 100) { 1535 device_printf(sc->sc_dev, "could not read BBP\n"); 1536 return 0; 1537 } 1538 1539 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1540 rum_write(sc, RT2573_PHY_CSR3, val); 1541 1542 for (ntries = 0; ntries < 100; ntries++) { 1543 val = rum_read(sc, RT2573_PHY_CSR3); 1544 if (!(val & RT2573_BBP_BUSY)) 1545 return val & 0xff; 1546 if (rum_pause(sc, hz / 100)) 1547 break; 1548 } 1549 1550 device_printf(sc->sc_dev, "could not read BBP\n"); 1551 return 0; 1552} 1553 1554static void 1555rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1556{ 1557 uint32_t tmp; 1558 int ntries; 1559 1560 for (ntries = 0; ntries < 100; ntries++) { 1561 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1562 break; 1563 if (rum_pause(sc, hz / 100)) 1564 break; 1565 } 1566 if (ntries == 100) { 1567 device_printf(sc->sc_dev, "could not write to RF\n"); 1568 return; 1569 } 1570 1571 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1572 (reg & 3); 1573 rum_write(sc, RT2573_PHY_CSR4, tmp); 1574 1575 /* remember last written value in sc */ 1576 sc->rf_regs[reg] = val; 1577 1578 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1579} 1580 1581static void 1582rum_select_antenna(struct rum_softc *sc) 1583{ 1584 uint8_t bbp4, bbp77; 1585 uint32_t tmp; 1586 1587 bbp4 = rum_bbp_read(sc, 4); 1588 bbp77 = rum_bbp_read(sc, 77); 1589 1590 /* TBD */ 1591 1592 /* make sure Rx is disabled before switching antenna */ 1593 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1594 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1595 1596 rum_bbp_write(sc, 4, bbp4); 1597 rum_bbp_write(sc, 77, bbp77); 1598 1599 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1600} 1601 1602/* 1603 * Enable multi-rate retries for frames sent at OFDM rates. 1604 * In 802.11b/g mode, allow fallback to CCK rates. 1605 */ 1606static void 1607rum_enable_mrr(struct rum_softc *sc) 1608{ 1609 struct ifnet *ifp = sc->sc_ifp; 1610 struct ieee80211com *ic = ifp->if_l2com; 1611 uint32_t tmp; 1612 1613 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1614 1615 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1616 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1617 tmp |= RT2573_MRR_CCK_FALLBACK; 1618 tmp |= RT2573_MRR_ENABLED; 1619 1620 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1621} 1622 1623static void 1624rum_set_txpreamble(struct rum_softc *sc) 1625{ 1626 struct ifnet *ifp = sc->sc_ifp; 1627 struct ieee80211com *ic = ifp->if_l2com; 1628 uint32_t tmp; 1629 1630 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1631 1632 tmp &= ~RT2573_SHORT_PREAMBLE; 1633 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1634 tmp |= RT2573_SHORT_PREAMBLE; 1635 1636 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1637} 1638 1639static void 1640rum_set_basicrates(struct rum_softc *sc) 1641{ 1642 struct ifnet *ifp = sc->sc_ifp; 1643 struct ieee80211com *ic = ifp->if_l2com; 1644 1645 /* update basic rate set */ 1646 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1647 /* 11b basic rates: 1, 2Mbps */ 1648 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1649 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1650 /* 11a basic rates: 6, 12, 24Mbps */ 1651 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1652 } else { 1653 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1654 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1655 } 1656} 1657 1658/* 1659 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1660 * driver. 1661 */ 1662static void 1663rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1664{ 1665 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1666 uint32_t tmp; 1667 1668 /* update all BBP registers that depend on the band */ 1669 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1670 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1671 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1672 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1673 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1674 } 1675 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1676 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1677 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1678 } 1679 1680 sc->bbp17 = bbp17; 1681 rum_bbp_write(sc, 17, bbp17); 1682 rum_bbp_write(sc, 96, bbp96); 1683 rum_bbp_write(sc, 104, bbp104); 1684 1685 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1686 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1687 rum_bbp_write(sc, 75, 0x80); 1688 rum_bbp_write(sc, 86, 0x80); 1689 rum_bbp_write(sc, 88, 0x80); 1690 } 1691 1692 rum_bbp_write(sc, 35, bbp35); 1693 rum_bbp_write(sc, 97, bbp97); 1694 rum_bbp_write(sc, 98, bbp98); 1695 1696 tmp = rum_read(sc, RT2573_PHY_CSR0); 1697 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1698 if (IEEE80211_IS_CHAN_2GHZ(c)) 1699 tmp |= RT2573_PA_PE_2GHZ; 1700 else 1701 tmp |= RT2573_PA_PE_5GHZ; 1702 rum_write(sc, RT2573_PHY_CSR0, tmp); 1703} 1704 1705static void 1706rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1707{ 1708 struct ifnet *ifp = sc->sc_ifp; 1709 struct ieee80211com *ic = ifp->if_l2com; 1710 const struct rfprog *rfprog; 1711 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1712 int8_t power; 1713 int i, chan; 1714 1715 chan = ieee80211_chan2ieee(ic, c); 1716 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1717 return; 1718 1719 /* select the appropriate RF settings based on what EEPROM says */ 1720 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1721 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1722 1723 /* find the settings for this channel (we know it exists) */ 1724 for (i = 0; rfprog[i].chan != chan; i++); 1725 1726 power = sc->txpow[i]; 1727 if (power < 0) { 1728 bbp94 += power; 1729 power = 0; 1730 } else if (power > 31) { 1731 bbp94 += power - 31; 1732 power = 31; 1733 } 1734 1735 /* 1736 * If we are switching from the 2GHz band to the 5GHz band or 1737 * vice-versa, BBP registers need to be reprogrammed. 1738 */ 1739 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1740 rum_select_band(sc, c); 1741 rum_select_antenna(sc); 1742 } 1743 ic->ic_curchan = c; 1744 1745 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1746 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1747 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1748 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1749 1750 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1751 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1752 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1753 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1754 1755 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1756 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1757 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1758 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1759 1760 rum_pause(sc, hz / 100); 1761 1762 /* enable smart mode for MIMO-capable RFs */ 1763 bbp3 = rum_bbp_read(sc, 3); 1764 1765 bbp3 &= ~RT2573_SMART_MODE; 1766 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1767 bbp3 |= RT2573_SMART_MODE; 1768 1769 rum_bbp_write(sc, 3, bbp3); 1770 1771 if (bbp94 != RT2573_BBPR94_DEFAULT) 1772 rum_bbp_write(sc, 94, bbp94); 1773 1774 /* give the chip some extra time to do the switchover */ 1775 rum_pause(sc, hz / 100); 1776} 1777 1778/* 1779 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1780 * and HostAP operating modes. 1781 */ 1782static void 1783rum_enable_tsf_sync(struct rum_softc *sc) 1784{ 1785 struct ifnet *ifp = sc->sc_ifp; 1786 struct ieee80211com *ic = ifp->if_l2com; 1787 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1788 uint32_t tmp; 1789 1790 if (vap->iv_opmode != IEEE80211_M_STA) { 1791 /* 1792 * Change default 16ms TBTT adjustment to 8ms. 1793 * Must be done before enabling beacon generation. 1794 */ 1795 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1796 } 1797 1798 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1799 1800 /* set beacon interval (in 1/16ms unit) */ 1801 tmp |= vap->iv_bss->ni_intval * 16; 1802 1803 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1804 if (vap->iv_opmode == IEEE80211_M_STA) 1805 tmp |= RT2573_TSF_MODE(1); 1806 else 1807 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1808 1809 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1810} 1811 1812static void 1813rum_update_slot(struct ifnet *ifp) 1814{ 1815 struct rum_softc *sc = ifp->if_softc; 1816 struct ieee80211com *ic = ifp->if_l2com; 1817 uint8_t slottime; 1818 uint32_t tmp; 1819 1820 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1821 1822 tmp = rum_read(sc, RT2573_MAC_CSR9); 1823 tmp = (tmp & ~0xff) | slottime; 1824 rum_write(sc, RT2573_MAC_CSR9, tmp); 1825 1826 DPRINTF("setting slot time to %uus\n", slottime); 1827} 1828 1829static void 1830rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1831{ 1832 uint32_t tmp; 1833 1834 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1835 rum_write(sc, RT2573_MAC_CSR4, tmp); 1836 1837 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1838 rum_write(sc, RT2573_MAC_CSR5, tmp); 1839} 1840 1841static void 1842rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1843{ 1844 uint32_t tmp; 1845 1846 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1847 rum_write(sc, RT2573_MAC_CSR2, tmp); 1848 1849 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1850 rum_write(sc, RT2573_MAC_CSR3, tmp); 1851} 1852 1853static void 1854rum_promisctask(struct usb2_proc_msg *pm) 1855{ 1856 struct rum_task *task = (struct rum_task *)pm; 1857 struct rum_softc *sc = task->sc; 1858 struct ifnet *ifp = sc->sc_ifp; 1859 uint32_t tmp; 1860 1861 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1862 1863 tmp &= ~RT2573_DROP_NOT_TO_ME; 1864 if (!(ifp->if_flags & IFF_PROMISC)) 1865 tmp |= RT2573_DROP_NOT_TO_ME; 1866 1867 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1868 1869 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1870 "entering" : "leaving"); 1871} 1872 1873static void 1874rum_update_promisc(struct ifnet *ifp) 1875{ 1876 struct rum_softc *sc = ifp->if_softc; 1877 1878 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1879 return; 1880 1881 RUM_LOCK(sc); 1882 rum_queue_command(sc, rum_promisctask, 1883 &sc->sc_promisctask[0].hdr, 1884 &sc->sc_promisctask[1].hdr); 1885 RUM_UNLOCK(sc); 1886} 1887 1888static const char * 1889rum_get_rf(int rev) 1890{ 1891 switch (rev) { 1892 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1893 case RT2573_RF_2528: return "RT2528"; 1894 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1895 case RT2573_RF_5226: return "RT5226"; 1896 default: return "unknown"; 1897 } 1898} 1899 1900static void 1901rum_read_eeprom(struct rum_softc *sc) 1902{ 1903 uint16_t val; 1904#ifdef RUM_DEBUG 1905 int i; 1906#endif 1907 1908 /* read MAC address */ 1909 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1910 1911 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1912 val = le16toh(val); 1913 sc->rf_rev = (val >> 11) & 0x1f; 1914 sc->hw_radio = (val >> 10) & 0x1; 1915 sc->rx_ant = (val >> 4) & 0x3; 1916 sc->tx_ant = (val >> 2) & 0x3; 1917 sc->nb_ant = val & 0x3; 1918 1919 DPRINTF("RF revision=%d\n", sc->rf_rev); 1920 1921 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1922 val = le16toh(val); 1923 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1924 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1925 1926 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1927 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1928 1929 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1930 val = le16toh(val); 1931 if ((val & 0xff) != 0xff) 1932 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1933 1934 /* Only [-10, 10] is valid */ 1935 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1936 sc->rssi_2ghz_corr = 0; 1937 1938 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1939 val = le16toh(val); 1940 if ((val & 0xff) != 0xff) 1941 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1942 1943 /* Only [-10, 10] is valid */ 1944 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1945 sc->rssi_5ghz_corr = 0; 1946 1947 if (sc->ext_2ghz_lna) 1948 sc->rssi_2ghz_corr -= 14; 1949 if (sc->ext_5ghz_lna) 1950 sc->rssi_5ghz_corr -= 14; 1951 1952 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1953 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1954 1955 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1956 val = le16toh(val); 1957 if ((val & 0xff) != 0xff) 1958 sc->rffreq = val & 0xff; 1959 1960 DPRINTF("RF freq=%d\n", sc->rffreq); 1961 1962 /* read Tx power for all a/b/g channels */ 1963 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1964 /* XXX default Tx power for 802.11a channels */ 1965 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1966#ifdef RUM_DEBUG 1967 for (i = 0; i < 14; i++) 1968 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1969#endif 1970 1971 /* read default values for BBP registers */ 1972 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1973#ifdef RUM_DEBUG 1974 for (i = 0; i < 14; i++) { 1975 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1976 continue; 1977 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1978 sc->bbp_prom[i].val); 1979 } 1980#endif 1981} 1982 1983static int 1984rum_bbp_init(struct rum_softc *sc) 1985{ 1986#define N(a) (sizeof (a) / sizeof ((a)[0])) 1987 int i, ntries; 1988 1989 /* wait for BBP to be ready */ 1990 for (ntries = 0; ntries < 100; ntries++) { 1991 const uint8_t val = rum_bbp_read(sc, 0); 1992 if (val != 0 && val != 0xff) 1993 break; 1994 if (rum_pause(sc, hz / 100)) 1995 break; 1996 } 1997 if (ntries == 100) { 1998 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1999 return EIO; 2000 } 2001 2002 /* initialize BBP registers to default values */ 2003 for (i = 0; i < N(rum_def_bbp); i++) 2004 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2005 2006 /* write vendor-specific BBP values (from EEPROM) */ 2007 for (i = 0; i < 16; i++) { 2008 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2009 continue; 2010 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2011 } 2012 2013 return 0; 2014#undef N 2015} 2016 2017static void 2018rum_init_task(struct usb2_proc_msg *pm) 2019{ 2020#define N(a) (sizeof (a) / sizeof ((a)[0])) 2021 struct rum_task *task = (struct rum_task *)pm; 2022 struct rum_softc *sc = task->sc; 2023 struct ifnet *ifp = sc->sc_ifp; 2024 struct ieee80211com *ic = ifp->if_l2com; 2025 uint32_t tmp; 2026 usb2_error_t error; 2027 int i, ntries; 2028 2029 RUM_LOCK_ASSERT(sc, MA_OWNED); 2030 2031 rum_stop_task(pm); 2032 2033 /* initialize MAC registers to default values */ 2034 for (i = 0; i < N(rum_def_mac); i++) 2035 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2036 2037 /* set host ready */ 2038 rum_write(sc, RT2573_MAC_CSR1, 3); 2039 rum_write(sc, RT2573_MAC_CSR1, 0); 2040 2041 /* wait for BBP/RF to wakeup */ 2042 for (ntries = 0; ntries < 100; ntries++) { 2043 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2044 break; 2045 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2046 if (rum_pause(sc, hz / 100)) 2047 break; 2048 } 2049 if (ntries == 100) { 2050 device_printf(sc->sc_dev, 2051 "timeout waiting for BBP/RF to wakeup\n"); 2052 goto fail; 2053 } 2054 2055 if ((error = rum_bbp_init(sc)) != 0) 2056 goto fail; 2057 2058 /* select default channel */ 2059 rum_select_band(sc, ic->ic_curchan); 2060 rum_select_antenna(sc); 2061 rum_set_chan(sc, ic->ic_curchan); 2062 2063 /* clear STA registers */ 2064 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2065 2066 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2067 2068 /* initialize ASIC */ 2069 rum_write(sc, RT2573_MAC_CSR1, 4); 2070 2071 /* 2072 * Allocate Tx and Rx xfer queues. 2073 */ 2074 rum_setup_tx_list(sc); 2075 2076 /* update Rx filter */ 2077 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2078 2079 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2080 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2081 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2082 RT2573_DROP_ACKCTS; 2083 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2084 tmp |= RT2573_DROP_TODS; 2085 if (!(ifp->if_flags & IFF_PROMISC)) 2086 tmp |= RT2573_DROP_NOT_TO_ME; 2087 } 2088 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2089 2090 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2091 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2092 usb2_transfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2093 usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2094 return; 2095 2096fail: rum_stop_task(pm); 2097#undef N 2098} 2099 2100static void 2101rum_init(void *priv) 2102{ 2103 struct rum_softc *sc = priv; 2104 struct ifnet *ifp = sc->sc_ifp; 2105 struct ieee80211com *ic = ifp->if_l2com; 2106 2107 RUM_LOCK(sc); 2108 rum_queue_command(sc, rum_init_task, 2109 &sc->sc_synctask[0].hdr, 2110 &sc->sc_synctask[1].hdr); 2111 RUM_UNLOCK(sc); 2112 2113 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2114 ieee80211_start_all(ic); /* start all vap's */ 2115} 2116 2117static void 2118rum_stop_task(struct usb2_proc_msg *pm) 2119{ 2120 struct rum_task *task = (struct rum_task *)pm; 2121 struct rum_softc *sc = task->sc; 2122 struct ifnet *ifp = sc->sc_ifp; 2123 uint32_t tmp; 2124 2125 RUM_LOCK_ASSERT(sc, MA_OWNED); 2126 2127 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2128 2129 RUM_UNLOCK(sc); 2130 2131 /* 2132 * Drain the USB transfers, if not already drained: 2133 */ 2134 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2135 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2136 2137 RUM_LOCK(sc); 2138 2139 rum_unsetup_tx_list(sc); 2140 2141 /* disable Rx */ 2142 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2143 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2144 2145 /* reset ASIC */ 2146 rum_write(sc, RT2573_MAC_CSR1, 3); 2147 rum_write(sc, RT2573_MAC_CSR1, 0); 2148} 2149 2150static void 2151rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2152{ 2153 struct usb2_device_request req; 2154 uint16_t reg = RT2573_MCU_CODE_BASE; 2155 usb2_error_t err; 2156 2157 /* copy firmware image into NIC */ 2158 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2159 err = rum_write(sc, reg, UGETDW(ucode)); 2160 if (err) { 2161 /* firmware already loaded ? */ 2162 device_printf(sc->sc_dev, "Firmware load " 2163 "failure! (ignored)\n"); 2164 break; 2165 } 2166 } 2167 2168 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2169 req.bRequest = RT2573_MCU_CNTL; 2170 USETW(req.wValue, RT2573_MCU_RUN); 2171 USETW(req.wIndex, 0); 2172 USETW(req.wLength, 0); 2173 2174 err = rum_do_request(sc, &req, NULL); 2175 if (err != 0) { 2176 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2177 usb2_errstr(err)); 2178 } 2179 2180 /* give the chip some time to boot */ 2181 rum_pause(sc, hz / 8); 2182} 2183 2184static int 2185rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2186{ 2187 struct ieee80211com *ic = vap->iv_ic; 2188 const struct ieee80211_txparam *tp; 2189 struct rum_tx_desc desc; 2190 struct mbuf *m0; 2191 2192 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2193 if (m0 == NULL) { 2194 return ENOBUFS; 2195 } 2196 2197 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2198 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2199 m0->m_pkthdr.len, tp->mgmtrate); 2200 2201 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2202 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2203 2204 /* copy beacon header and payload into NIC memory */ 2205 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2206 m0->m_pkthdr.len); 2207 2208 m_freem(m0); 2209 2210 return 0; 2211} 2212 2213static int 2214rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2215 const struct ieee80211_bpf_params *params) 2216{ 2217 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2218 struct rum_softc *sc = ifp->if_softc; 2219 2220 RUM_LOCK(sc); 2221 /* prevent management frames from being sent if we're not ready */ 2222 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2223 RUM_UNLOCK(sc); 2224 m_freem(m); 2225 ieee80211_free_node(ni); 2226 return ENETDOWN; 2227 } 2228 if (sc->tx_nfree < RUM_TX_MINFREE) { 2229 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2230 RUM_UNLOCK(sc); 2231 m_freem(m); 2232 ieee80211_free_node(ni); 2233 return EIO; 2234 } 2235 2236 ifp->if_opackets++; 2237 2238 if (params == NULL) { 2239 /* 2240 * Legacy path; interpret frame contents to decide 2241 * precisely how to send the frame. 2242 */ 2243 if (rum_tx_mgt(sc, m, ni) != 0) 2244 goto bad; 2245 } else { 2246 /* 2247 * Caller supplied explicit parameters to use in 2248 * sending the frame. 2249 */ 2250 if (rum_tx_raw(sc, m, ni, params) != 0) 2251 goto bad; 2252 } 2253 RUM_UNLOCK(sc); 2254 2255 return 0; 2256bad: 2257 ifp->if_oerrors++; 2258 RUM_UNLOCK(sc); 2259 ieee80211_free_node(ni); 2260 return EIO; 2261} 2262 2263static void 2264rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2265{ 2266 struct ieee80211vap *vap = ni->ni_vap; 2267 struct rum_vap *rvp = RUM_VAP(vap); 2268 2269 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2270 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2271 2272 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2273 2274 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2275} 2276 2277static void 2278rum_amrr_timeout(void *arg) 2279{ 2280 struct rum_vap *rvp = arg; 2281 struct rum_softc *sc = rvp->sc; 2282 2283 rum_queue_command(sc, rum_amrr_task, 2284 &rvp->amrr_task[0].hdr, &rvp->amrr_task[1].hdr); 2285} 2286 2287static void 2288rum_amrr_task(struct usb2_proc_msg *pm) 2289{ 2290 struct rum_task *task = (struct rum_task *)pm; 2291 struct rum_softc *sc = task->sc; 2292 struct ifnet *ifp = sc->sc_ifp; 2293 struct ieee80211com *ic = ifp->if_l2com; 2294 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2295 struct rum_vap *rvp = RUM_VAP(vap); 2296 struct ieee80211_node *ni = vap->iv_bss; 2297 int ok, fail; 2298 2299 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2300 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2301 2302 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2303 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2304 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2305 2306 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2307 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2308 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2309 2310 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2311 2312 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2313} 2314 2315/* ARGUSED */ 2316static struct ieee80211_node * 2317rum_node_alloc(struct ieee80211vap *vap __unused, 2318 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2319{ 2320 struct rum_node *rn; 2321 2322 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2323 return rn != NULL ? &rn->ni : NULL; 2324} 2325 2326static void 2327rum_newassoc(struct ieee80211_node *ni, int isnew) 2328{ 2329 struct ieee80211vap *vap = ni->ni_vap; 2330 2331 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2332} 2333 2334static void 2335rum_scan_start(struct ieee80211com *ic) 2336{ 2337 struct rum_softc *sc = ic->ic_ifp->if_softc; 2338 2339 RUM_LOCK(sc); 2340 /* do it in a process context */ 2341 sc->sc_scan_action = RUM_SCAN_START; 2342 rum_queue_command(sc, rum_scantask, 2343 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2344 RUM_UNLOCK(sc); 2345 2346} 2347 2348static void 2349rum_scan_end(struct ieee80211com *ic) 2350{ 2351 struct rum_softc *sc = ic->ic_ifp->if_softc; 2352 2353 RUM_LOCK(sc); 2354 /* do it in a process context */ 2355 sc->sc_scan_action = RUM_SCAN_END; 2356 rum_queue_command(sc, rum_scantask, 2357 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2358 RUM_UNLOCK(sc); 2359 2360} 2361 2362static void 2363rum_set_channel(struct ieee80211com *ic) 2364{ 2365 struct rum_softc *sc = ic->ic_ifp->if_softc; 2366 2367 RUM_LOCK(sc); 2368 /* do it in a process context */ 2369 sc->sc_scan_action = RUM_SET_CHANNEL; 2370 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 2371 rum_queue_command(sc, rum_scantask, 2372 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2373 RUM_UNLOCK(sc); 2374} 2375 2376static void 2377rum_scantask(struct usb2_proc_msg *pm) 2378{ 2379 struct rum_task *task = (struct rum_task *)pm; 2380 struct rum_softc *sc = task->sc; 2381 struct ifnet *ifp = sc->sc_ifp; 2382 struct ieee80211com *ic = ifp->if_l2com; 2383 uint32_t tmp; 2384 2385 RUM_LOCK_ASSERT(sc, MA_OWNED); 2386 2387 switch (sc->sc_scan_action) { 2388 case RUM_SCAN_START: 2389 /* abort TSF synchronization */ 2390 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2391 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2392 rum_set_bssid(sc, ifp->if_broadcastaddr); 2393 break; 2394 2395 case RUM_SET_CHANNEL: 2396 rum_set_chan(sc, ic->ic_curchan); 2397 break; 2398 2399 default: /* RUM_SCAN_END */ 2400 rum_enable_tsf_sync(sc); 2401 rum_set_bssid(sc, sc->sc_bssid); 2402 break; 2403 } 2404} 2405 2406static int 2407rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2408{ 2409 struct ifnet *ifp = sc->sc_ifp; 2410 struct ieee80211com *ic = ifp->if_l2com; 2411 int lna, agc, rssi; 2412 2413 lna = (raw >> 5) & 0x3; 2414 agc = raw & 0x1f; 2415 2416 if (lna == 0) { 2417 /* 2418 * No RSSI mapping 2419 * 2420 * NB: Since RSSI is relative to noise floor, -1 is 2421 * adequate for caller to know error happened. 2422 */ 2423 return -1; 2424 } 2425 2426 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2427 2428 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2429 rssi += sc->rssi_2ghz_corr; 2430 2431 if (lna == 1) 2432 rssi -= 64; 2433 else if (lna == 2) 2434 rssi -= 74; 2435 else if (lna == 3) 2436 rssi -= 90; 2437 } else { 2438 rssi += sc->rssi_5ghz_corr; 2439 2440 if (!sc->ext_5ghz_lna && lna != 1) 2441 rssi += 4; 2442 2443 if (lna == 1) 2444 rssi -= 64; 2445 else if (lna == 2) 2446 rssi -= 86; 2447 else if (lna == 3) 2448 rssi -= 100; 2449 } 2450 return rssi; 2451} 2452 2453static int 2454rum_pause(struct rum_softc *sc, int timeout) 2455{ 2456 if (usb2_proc_is_gone(&sc->sc_tq)) 2457 return (1); 2458 2459 usb2_pause_mtx(&sc->sc_mtx, timeout); 2460 return (0); 2461} 2462 2463static void 2464rum_command_wrapper(struct usb2_proc_msg *pm) 2465{ 2466 struct rum_task *task = (struct rum_task *)pm; 2467 struct rum_softc *sc = task->sc; 2468 struct ifnet *ifp; 2469 2470 /* wait for pending transfer, if any */ 2471 while (usb2_transfer_pending(sc->sc_xfer[RUM_BULK_WR])) 2472 cv_wait(&sc->sc_cmd_cv, &sc->sc_mtx); 2473 2474 /* make sure any hardware buffers are emptied */ 2475 rum_pause(sc, hz / 1000); 2476 2477 /* execute task */ 2478 task->func(pm); 2479 2480 /* check if this is the last task executed */ 2481 if (sc->sc_last_task == task) { 2482 sc->sc_last_task = NULL; 2483 ifp = sc->sc_ifp; 2484 /* re-start TX, if any */ 2485 if ((ifp != NULL) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 2486 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 2487 } 2488} 2489 2490static void 2491rum_queue_command(struct rum_softc *sc, usb2_proc_callback_t *fn, 2492 struct usb2_proc_msg *t0, struct usb2_proc_msg *t1) 2493{ 2494 struct rum_task *task; 2495 2496 RUM_LOCK_ASSERT(sc, MA_OWNED); 2497 2498 /* 2499 * NOTE: The task cannot get executed before we drop the 2500 * "sc_mtx" mutex. It is safe to update fields in the message 2501 * structure after that the message got queued. 2502 */ 2503 task = (struct rum_task *) 2504 usb2_proc_msignal(&sc->sc_tq, t0, t1); 2505 2506 /* Setup callback and softc pointers */ 2507 task->hdr.pm_callback = rum_command_wrapper; 2508 task->func = fn; 2509 task->sc = sc; 2510 2511 /* Make sure that any TX operation will stop */ 2512 sc->sc_last_task = task; 2513 2514 /* 2515 * Init, stop and flush must be synchronous! 2516 */ 2517 if ((fn == rum_init_task) || (fn == rum_stop_task) || 2518 (fn == rum_flush_task)) 2519 usb2_proc_mwait(&sc->sc_tq, t0, t1); 2520} 2521 2522static device_method_t rum_methods[] = { 2523 /* Device interface */ 2524 DEVMETHOD(device_probe, rum_match), 2525 DEVMETHOD(device_attach, rum_attach), 2526 DEVMETHOD(device_detach, rum_detach), 2527 2528 { 0, 0 } 2529}; 2530 2531static driver_t rum_driver = { 2532 .name = "rum", 2533 .methods = rum_methods, 2534 .size = sizeof(struct rum_softc), 2535}; 2536 2537static devclass_t rum_devclass; 2538 2539DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2540