if_rum.c revision 189124
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 189124 2009-02-27 21:50:15Z thompsa $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 189124 2009-02-27 21:50:15Z thompsa $"); 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 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_bssid); 498 499 /* set device capabilities */ 500 ic->ic_caps = 501 IEEE80211_C_STA /* station mode supported */ 502 | IEEE80211_C_IBSS /* IBSS mode supported */ 503 | IEEE80211_C_MONITOR /* monitor mode supported */ 504 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 505 | IEEE80211_C_TXPMGT /* tx power management */ 506 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 507 | IEEE80211_C_SHSLOT /* short slot time supported */ 508 | IEEE80211_C_BGSCAN /* bg scanning supported */ 509 | IEEE80211_C_WPA /* 802.11i */ 510 ; 511 512 bands = 0; 513 setbit(&bands, IEEE80211_MODE_11B); 514 setbit(&bands, IEEE80211_MODE_11G); 515 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 516 setbit(&bands, IEEE80211_MODE_11A); 517 ieee80211_init_channels(ic, NULL, &bands); 518 519 ieee80211_ifattach(ic); 520 ic->ic_update_promisc = rum_update_promisc; 521 ic->ic_newassoc = rum_newassoc; 522 ic->ic_raw_xmit = rum_raw_xmit; 523 ic->ic_node_alloc = rum_node_alloc; 524 ic->ic_scan_start = rum_scan_start; 525 ic->ic_scan_end = rum_scan_end; 526 ic->ic_set_channel = rum_set_channel; 527 528 ic->ic_vap_create = rum_vap_create; 529 ic->ic_vap_delete = rum_vap_delete; 530 531 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 532 533 bpfattach(ifp, DLT_IEEE802_11_RADIO, 534 sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap)); 535 536 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 537 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 538 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 539 540 sc->sc_txtap_len = sizeof sc->sc_txtap; 541 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 542 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 543 544 if (bootverbose) 545 ieee80211_announce(ic); 546 547 RUM_LOCK(sc); 548} 549 550static int 551rum_detach(device_t self) 552{ 553 struct rum_softc *sc = device_get_softc(self); 554 struct ifnet *ifp = sc->sc_ifp; 555 struct ieee80211com *ic; 556 557 /* wait for any post attach or other command to complete */ 558 usb2_proc_drain(&sc->sc_tq); 559 560 /* stop all USB transfers */ 561 usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 562 usb2_proc_free(&sc->sc_tq); 563 564 /* free TX list, if any */ 565 RUM_LOCK(sc); 566 rum_unsetup_tx_list(sc); 567 RUM_UNLOCK(sc); 568 569 if (ifp) { 570 ic = ifp->if_l2com; 571 bpfdetach(ifp); 572 ieee80211_ifdetach(ic); 573 if_free(ifp); 574 } 575 cv_destroy(&sc->sc_cmd_cv); 576 mtx_destroy(&sc->sc_mtx); 577 578 return (0); 579} 580 581static usb2_error_t 582rum_do_request(struct rum_softc *sc, 583 struct usb2_device_request *req, void *data) 584{ 585 usb2_error_t err; 586 int ntries = 10; 587 588 while (ntries--) { 589 err = usb2_do_request_proc(sc->sc_udev, &sc->sc_tq, 590 req, data, 0, NULL, 250 /* ms */); 591 if (err == 0) 592 break; 593 594 DPRINTFN(1, "Control request failed, %s (retrying)\n", 595 usb2_errstr(err)); 596 if (rum_pause(sc, hz / 100)) 597 break; 598 } 599 return (err); 600} 601 602static struct ieee80211vap * 603rum_vap_create(struct ieee80211com *ic, 604 const char name[IFNAMSIZ], int unit, int opmode, int flags, 605 const uint8_t bssid[IEEE80211_ADDR_LEN], 606 const uint8_t mac[IEEE80211_ADDR_LEN]) 607{ 608 struct rum_softc *sc = ic->ic_ifp->if_softc; 609 struct rum_vap *rvp; 610 struct ieee80211vap *vap; 611 612 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 613 return NULL; 614 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 615 M_80211_VAP, M_NOWAIT | M_ZERO); 616 if (rvp == NULL) 617 return NULL; 618 vap = &rvp->vap; 619 /* enable s/w bmiss handling for sta mode */ 620 ieee80211_vap_setup(ic, vap, name, unit, opmode, 621 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 622 623 /* override state transition machine */ 624 rvp->newstate = vap->iv_newstate; 625 vap->iv_newstate = rum_newstate; 626 627 rvp->sc = sc; 628 usb2_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 629 ieee80211_amrr_init(&rvp->amrr, vap, 630 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 631 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 632 1000 /* 1 sec */); 633 634 /* complete setup */ 635 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 636 ic->ic_opmode = opmode; 637 return vap; 638} 639 640static void 641rum_flush_task(struct usb2_proc_msg *pm) 642{ 643 /* Nothing to do */ 644} 645 646static void 647rum_vap_delete(struct ieee80211vap *vap) 648{ 649 struct rum_vap *rvp = RUM_VAP(vap); 650 struct rum_softc *sc = rvp->sc; 651 652 RUM_LOCK(sc); 653 /* wait for any pending tasks to complete */ 654 rum_queue_command(sc, rum_flush_task, 655 &sc->sc_synctask[0].hdr, 656 &sc->sc_synctask[1].hdr); 657 RUM_UNLOCK(sc); 658 659 usb2_callout_drain(&rvp->amrr_ch); 660 ieee80211_amrr_cleanup(&rvp->amrr); 661 ieee80211_vap_detach(vap); 662 free(rvp, M_80211_VAP); 663} 664 665static void 666rum_tx_free(struct rum_tx_data *data, int txerr) 667{ 668 struct rum_softc *sc = data->sc; 669 670 if (data->m != NULL) { 671 if (data->m->m_flags & M_TXCB) 672 ieee80211_process_callback(data->ni, data->m, 673 txerr ? ETIMEDOUT : 0); 674 m_freem(data->m); 675 data->m = NULL; 676 677 ieee80211_free_node(data->ni); 678 data->ni = NULL; 679 } 680 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 681 sc->tx_nfree++; 682} 683 684static void 685rum_setup_tx_list(struct rum_softc *sc) 686{ 687 struct rum_tx_data *data; 688 int i; 689 690 sc->tx_nfree = 0; 691 STAILQ_INIT(&sc->tx_q); 692 STAILQ_INIT(&sc->tx_free); 693 694 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 695 data = &sc->tx_data[i]; 696 697 data->sc = sc; 698 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 699 sc->tx_nfree++; 700 } 701} 702 703static void 704rum_unsetup_tx_list(struct rum_softc *sc) 705{ 706 struct rum_tx_data *data; 707 int i; 708 709 /* make sure any subsequent use of the queues will fail */ 710 sc->tx_nfree = 0; 711 STAILQ_INIT(&sc->tx_q); 712 STAILQ_INIT(&sc->tx_free); 713 714 /* free up all node references and mbufs */ 715 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 716 data = &sc->tx_data[i]; 717 718 if (data->m != NULL) { 719 m_freem(data->m); 720 data->m = NULL; 721 } 722 if (data->ni != NULL) { 723 ieee80211_free_node(data->ni); 724 data->ni = NULL; 725 } 726 } 727} 728 729static void 730rum_task(struct usb2_proc_msg *pm) 731{ 732 struct rum_task *task = (struct rum_task *)pm; 733 struct rum_softc *sc = task->sc; 734 struct ifnet *ifp = sc->sc_ifp; 735 struct ieee80211com *ic = ifp->if_l2com; 736 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 737 struct rum_vap *rvp = RUM_VAP(vap); 738 const struct ieee80211_txparam *tp; 739 enum ieee80211_state ostate; 740 struct ieee80211_node *ni; 741 uint32_t tmp; 742 743 ostate = vap->iv_state; 744 745 switch (sc->sc_state) { 746 case IEEE80211_S_INIT: 747 if (ostate == IEEE80211_S_RUN) { 748 /* abort TSF synchronization */ 749 tmp = rum_read(sc, RT2573_TXRX_CSR9); 750 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 751 } 752 break; 753 754 case IEEE80211_S_RUN: 755 ni = vap->iv_bss; 756 757 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 758 rum_update_slot(ic->ic_ifp); 759 rum_enable_mrr(sc); 760 rum_set_txpreamble(sc); 761 rum_set_basicrates(sc); 762 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 763 rum_set_bssid(sc, sc->sc_bssid); 764 } 765 766 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 767 vap->iv_opmode == IEEE80211_M_IBSS) 768 rum_prepare_beacon(sc, vap); 769 770 if (vap->iv_opmode != IEEE80211_M_MONITOR) 771 rum_enable_tsf_sync(sc); 772 773 /* enable automatic rate adaptation */ 774 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 775 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 776 rum_amrr_start(sc, ni); 777 break; 778 default: 779 break; 780 } 781 782 RUM_UNLOCK(sc); 783 IEEE80211_LOCK(ic); 784 rvp->newstate(vap, sc->sc_state, sc->sc_arg); 785 if (vap->iv_newstate_cb != NULL) 786 vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg); 787 IEEE80211_UNLOCK(ic); 788 RUM_LOCK(sc); 789} 790 791static int 792rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 793{ 794 struct rum_vap *rvp = RUM_VAP(vap); 795 struct ieee80211com *ic = vap->iv_ic; 796 struct rum_softc *sc = ic->ic_ifp->if_softc; 797 798 DPRINTF("%s -> %s\n", 799 ieee80211_state_name[vap->iv_state], 800 ieee80211_state_name[nstate]); 801 802 RUM_LOCK(sc); 803 usb2_callout_stop(&rvp->amrr_ch); 804 805 /* do it in a process context */ 806 sc->sc_state = nstate; 807 sc->sc_arg = arg; 808 RUM_UNLOCK(sc); 809 810 if (nstate == IEEE80211_S_INIT) { 811 rvp->newstate(vap, nstate, arg); 812 return 0; 813 } else { 814 RUM_LOCK(sc); 815 rum_queue_command(sc, rum_task, &sc->sc_task[0].hdr, 816 &sc->sc_task[1].hdr); 817 RUM_UNLOCK(sc); 818 return EINPROGRESS; 819 } 820} 821 822static void 823rum_bulk_write_callback(struct usb2_xfer *xfer) 824{ 825 struct rum_softc *sc = xfer->priv_sc; 826 struct ifnet *ifp = sc->sc_ifp; 827 struct ieee80211com *ic = ifp->if_l2com; 828 struct ieee80211_channel *c = ic->ic_curchan; 829 struct rum_tx_data *data; 830 struct mbuf *m; 831 unsigned int len; 832 833 /* wakeup waiting command, if any */ 834 if (sc->sc_last_task != NULL) 835 cv_signal(&sc->sc_cmd_cv); 836 837 switch (USB_GET_STATE(xfer)) { 838 case USB_ST_TRANSFERRED: 839 DPRINTFN(11, "transfer complete, %d bytes\n", xfer->actlen); 840 841 /* free resources */ 842 data = xfer->priv_fifo; 843 rum_tx_free(data, 0); 844 xfer->priv_fifo = NULL; 845 846 ifp->if_opackets++; 847 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 848 849 /* FALLTHROUGH */ 850 case USB_ST_SETUP: 851tr_setup: 852 /* wait for command to complete, if any */ 853 if (sc->sc_last_task != NULL) 854 break; 855 856 data = STAILQ_FIRST(&sc->tx_q); 857 if (data) { 858 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 859 m = data->m; 860 861 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 862 DPRINTFN(0, "data overflow, %u bytes\n", 863 m->m_pkthdr.len); 864 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 865 } 866 usb2_copy_in(xfer->frbuffers, 0, &data->desc, 867 RT2573_TX_DESC_SIZE); 868 usb2_m_copy_in(xfer->frbuffers, RT2573_TX_DESC_SIZE, m, 869 0, m->m_pkthdr.len); 870 871 if (bpf_peers_present(ifp->if_bpf)) { 872 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 873 874 tap->wt_flags = 0; 875 tap->wt_rate = data->rate; 876 tap->wt_chan_freq = htole16(c->ic_freq); 877 tap->wt_chan_flags = htole16(c->ic_flags); 878 tap->wt_antenna = sc->tx_ant; 879 880 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m); 881 } 882 883 /* align end on a 4-bytes boundary */ 884 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 885 if ((len % 64) == 0) 886 len += 4; 887 888 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 889 m->m_pkthdr.len, len); 890 891 xfer->frlengths[0] = len; 892 xfer->priv_fifo = data; 893 894 usb2_start_hardware(xfer); 895 } 896 break; 897 898 default: /* Error */ 899 DPRINTFN(11, "transfer error, %s\n", 900 usb2_errstr(xfer->error)); 901 902 ifp->if_oerrors++; 903 data = xfer->priv_fifo; 904 if (data != NULL) { 905 rum_tx_free(data, xfer->error); 906 xfer->priv_fifo = NULL; 907 } 908 909 if (xfer->error == USB_ERR_STALLED) { 910 /* try to clear stall first */ 911 xfer->flags.stall_pipe = 1; 912 goto tr_setup; 913 } 914 if (xfer->error == USB_ERR_TIMEOUT) 915 device_printf(sc->sc_dev, "device timeout\n"); 916 break; 917 } 918} 919 920static void 921rum_bulk_read_callback(struct usb2_xfer *xfer) 922{ 923 struct rum_softc *sc = xfer->priv_sc; 924 struct ifnet *ifp = sc->sc_ifp; 925 struct ieee80211com *ic = ifp->if_l2com; 926 struct ieee80211_node *ni; 927 struct mbuf *m = NULL; 928 uint32_t flags; 929 uint8_t rssi = 0; 930 unsigned int len; 931 932 switch (USB_GET_STATE(xfer)) { 933 case USB_ST_TRANSFERRED: 934 935 DPRINTFN(15, "rx done, actlen=%d\n", xfer->actlen); 936 937 len = xfer->actlen; 938 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 939 DPRINTF("%s: xfer too short %d\n", 940 device_get_nameunit(sc->sc_dev), len); 941 ifp->if_ierrors++; 942 goto tr_setup; 943 } 944 945 len -= RT2573_RX_DESC_SIZE; 946 usb2_copy_out(xfer->frbuffers, 0, &sc->sc_rx_desc, 947 RT2573_RX_DESC_SIZE); 948 949 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 950 flags = le32toh(sc->sc_rx_desc.flags); 951 if (flags & RT2573_RX_CRC_ERROR) { 952 /* 953 * This should not happen since we did not 954 * request to receive those frames when we 955 * filled RUM_TXRX_CSR2: 956 */ 957 DPRINTFN(5, "PHY or CRC error\n"); 958 ifp->if_ierrors++; 959 goto tr_setup; 960 } 961 962 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 963 if (m == NULL) { 964 DPRINTF("could not allocate mbuf\n"); 965 ifp->if_ierrors++; 966 goto tr_setup; 967 } 968 usb2_copy_out(xfer->frbuffers, RT2573_RX_DESC_SIZE, 969 mtod(m, uint8_t *), len); 970 971 /* finalize mbuf */ 972 m->m_pkthdr.rcvif = ifp; 973 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 974 975 if (bpf_peers_present(ifp->if_bpf)) { 976 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 977 978 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 979 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 980 (flags & RT2573_RX_OFDM) ? 981 IEEE80211_T_OFDM : IEEE80211_T_CCK); 982 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 983 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 984 tap->wr_antenna = sc->rx_ant; 985 tap->wr_antsignal = rssi; 986 987 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 988 } 989 /* FALLTHROUGH */ 990 case USB_ST_SETUP: 991tr_setup: 992 xfer->frlengths[0] = xfer->max_data_length; 993 usb2_start_hardware(xfer); 994 995 /* 996 * At the end of a USB callback it is always safe to unlock 997 * the private mutex of a device! That is why we do the 998 * "ieee80211_input" here, and not some lines up! 999 */ 1000 if (m) { 1001 RUM_UNLOCK(sc); 1002 ni = ieee80211_find_rxnode(ic, 1003 mtod(m, struct ieee80211_frame_min *)); 1004 if (ni != NULL) { 1005 (void) ieee80211_input(ni, m, rssi, 1006 RT2573_NOISE_FLOOR, 0); 1007 ieee80211_free_node(ni); 1008 } else 1009 (void) ieee80211_input_all(ic, m, rssi, 1010 RT2573_NOISE_FLOOR, 0); 1011 RUM_LOCK(sc); 1012 } 1013 return; 1014 1015 default: /* Error */ 1016 if (xfer->error != USB_ERR_CANCELLED) { 1017 /* try to clear stall first */ 1018 xfer->flags.stall_pipe = 1; 1019 goto tr_setup; 1020 } 1021 return; 1022 } 1023} 1024 1025static uint8_t 1026rum_plcp_signal(int rate) 1027{ 1028 switch (rate) { 1029 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1030 case 12: return 0xb; 1031 case 18: return 0xf; 1032 case 24: return 0xa; 1033 case 36: return 0xe; 1034 case 48: return 0x9; 1035 case 72: return 0xd; 1036 case 96: return 0x8; 1037 case 108: return 0xc; 1038 1039 /* CCK rates (NB: not IEEE std, device-specific) */ 1040 case 2: return 0x0; 1041 case 4: return 0x1; 1042 case 11: return 0x2; 1043 case 22: return 0x3; 1044 } 1045 return 0xff; /* XXX unsupported/unknown rate */ 1046} 1047 1048static void 1049rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1050 uint32_t flags, uint16_t xflags, int len, int rate) 1051{ 1052 struct ifnet *ifp = sc->sc_ifp; 1053 struct ieee80211com *ic = ifp->if_l2com; 1054 uint16_t plcp_length; 1055 int remainder; 1056 1057 desc->flags = htole32(flags); 1058 desc->flags |= htole32(RT2573_TX_VALID); 1059 desc->flags |= htole32(len << 16); 1060 1061 desc->xflags = htole16(xflags); 1062 1063 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1064 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1065 1066 /* setup PLCP fields */ 1067 desc->plcp_signal = rum_plcp_signal(rate); 1068 desc->plcp_service = 4; 1069 1070 len += IEEE80211_CRC_LEN; 1071 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) { 1072 desc->flags |= htole32(RT2573_TX_OFDM); 1073 1074 plcp_length = len & 0xfff; 1075 desc->plcp_length_hi = plcp_length >> 6; 1076 desc->plcp_length_lo = plcp_length & 0x3f; 1077 } else { 1078 plcp_length = (16 * len + rate - 1) / rate; 1079 if (rate == 22) { 1080 remainder = (16 * len) % 22; 1081 if (remainder != 0 && remainder < 7) 1082 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1083 } 1084 desc->plcp_length_hi = plcp_length >> 8; 1085 desc->plcp_length_lo = plcp_length & 0xff; 1086 1087 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1088 desc->plcp_signal |= 0x08; 1089 } 1090} 1091 1092static int 1093rum_sendprot(struct rum_softc *sc, 1094 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1095{ 1096 struct ieee80211com *ic = ni->ni_ic; 1097 const struct ieee80211_frame *wh; 1098 struct rum_tx_data *data; 1099 struct mbuf *mprot; 1100 int protrate, ackrate, pktlen, flags, isshort; 1101 uint16_t dur; 1102 1103 RUM_LOCK_ASSERT(sc, MA_OWNED); 1104 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1105 ("protection %d", prot)); 1106 1107 wh = mtod(m, const struct ieee80211_frame *); 1108 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1109 1110 protrate = ieee80211_ctl_rate(sc->sc_rates, rate); 1111 ackrate = ieee80211_ack_rate(sc->sc_rates, rate); 1112 1113 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1114 dur = ieee80211_compute_duration(sc->sc_rates, pktlen, rate, isshort); 1115 + ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1116 flags = RT2573_TX_MORE_FRAG; 1117 if (prot == IEEE80211_PROT_RTSCTS) { 1118 /* NB: CTS is the same size as an ACK */ 1119 dur += ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1120 flags |= RT2573_TX_NEED_ACK; 1121 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1122 } else { 1123 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1124 } 1125 if (mprot == NULL) { 1126 /* XXX stat + msg */ 1127 return (ENOBUFS); 1128 } 1129 data = STAILQ_FIRST(&sc->tx_free); 1130 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1131 sc->tx_nfree--; 1132 1133 data->m = mprot; 1134 data->ni = ieee80211_ref_node(ni); 1135 data->rate = protrate; 1136 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1137 1138 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1139 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1140 1141 return 0; 1142} 1143 1144static int 1145rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1146{ 1147 struct ieee80211vap *vap = ni->ni_vap; 1148 struct ifnet *ifp = sc->sc_ifp; 1149 struct ieee80211com *ic = ifp->if_l2com; 1150 struct rum_tx_data *data; 1151 struct ieee80211_frame *wh; 1152 const struct ieee80211_txparam *tp; 1153 struct ieee80211_key *k; 1154 uint32_t flags = 0; 1155 uint16_t dur; 1156 1157 RUM_LOCK_ASSERT(sc, MA_OWNED); 1158 1159 data = STAILQ_FIRST(&sc->tx_free); 1160 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1161 sc->tx_nfree--; 1162 1163 wh = mtod(m0, struct ieee80211_frame *); 1164 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1165 k = ieee80211_crypto_encap(ni, m0); 1166 if (k == NULL) { 1167 m_freem(m0); 1168 return ENOBUFS; 1169 } 1170 wh = mtod(m0, struct ieee80211_frame *); 1171 } 1172 1173 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1174 1175 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1176 flags |= RT2573_TX_NEED_ACK; 1177 1178 dur = ieee80211_ack_duration(sc->sc_rates, tp->mgmtrate, 1179 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1180 *(uint16_t *)wh->i_dur = htole16(dur); 1181 1182 /* tell hardware to add timestamp for probe responses */ 1183 if ((wh->i_fc[0] & 1184 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1185 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1186 flags |= RT2573_TX_TIMESTAMP; 1187 } 1188 1189 data->m = m0; 1190 data->ni = ni; 1191 data->rate = tp->mgmtrate; 1192 1193 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1194 1195 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1196 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1197 1198 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1199 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1200 1201 return (0); 1202} 1203 1204static int 1205rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1206 const struct ieee80211_bpf_params *params) 1207{ 1208 struct rum_tx_data *data; 1209 uint32_t flags; 1210 int rate, error; 1211 1212 RUM_LOCK_ASSERT(sc, MA_OWNED); 1213 KASSERT(params != NULL, ("no raw xmit params")); 1214 1215 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1216 /* XXX validate */ 1217 if (rate == 0) { 1218 m_freem(m0); 1219 return EINVAL; 1220 } 1221 flags = 0; 1222 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1223 flags |= RT2573_TX_NEED_ACK; 1224 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1225 error = rum_sendprot(sc, m0, ni, 1226 params->ibp_flags & IEEE80211_BPF_RTS ? 1227 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1228 rate); 1229 if (error || sc->tx_nfree == 0) { 1230 m_freem(m0); 1231 return ENOBUFS; 1232 } 1233 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1234 } 1235 1236 data = STAILQ_FIRST(&sc->tx_free); 1237 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1238 sc->tx_nfree--; 1239 1240 data->m = m0; 1241 data->ni = ni; 1242 data->rate = rate; 1243 1244 /* XXX need to setup descriptor ourself */ 1245 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1246 1247 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1248 m0->m_pkthdr.len, rate); 1249 1250 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1251 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1252 1253 return 0; 1254} 1255 1256static int 1257rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1258{ 1259 struct ieee80211vap *vap = ni->ni_vap; 1260 struct ifnet *ifp = sc->sc_ifp; 1261 struct ieee80211com *ic = ifp->if_l2com; 1262 struct rum_tx_data *data; 1263 struct ieee80211_frame *wh; 1264 const struct ieee80211_txparam *tp; 1265 struct ieee80211_key *k; 1266 uint32_t flags = 0; 1267 uint16_t dur; 1268 int error, rate; 1269 1270 RUM_LOCK_ASSERT(sc, MA_OWNED); 1271 1272 wh = mtod(m0, struct ieee80211_frame *); 1273 1274 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1275 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1276 rate = tp->mcastrate; 1277 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1278 rate = tp->ucastrate; 1279 else 1280 rate = ni->ni_txrate; 1281 1282 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1283 k = ieee80211_crypto_encap(ni, m0); 1284 if (k == NULL) { 1285 m_freem(m0); 1286 return ENOBUFS; 1287 } 1288 1289 /* packet header may have moved, reset our local pointer */ 1290 wh = mtod(m0, struct ieee80211_frame *); 1291 } 1292 1293 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1294 int prot = IEEE80211_PROT_NONE; 1295 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1296 prot = IEEE80211_PROT_RTSCTS; 1297 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1298 ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) 1299 prot = ic->ic_protmode; 1300 if (prot != IEEE80211_PROT_NONE) { 1301 error = rum_sendprot(sc, m0, ni, prot, rate); 1302 if (error || sc->tx_nfree == 0) { 1303 m_freem(m0); 1304 return ENOBUFS; 1305 } 1306 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1307 } 1308 } 1309 1310 data = STAILQ_FIRST(&sc->tx_free); 1311 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1312 sc->tx_nfree--; 1313 1314 data->m = m0; 1315 data->ni = ni; 1316 data->rate = rate; 1317 1318 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1319 flags |= RT2573_TX_NEED_ACK; 1320 flags |= RT2573_TX_MORE_FRAG; 1321 1322 dur = ieee80211_ack_duration(sc->sc_rates, rate, 1323 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1324 *(uint16_t *)wh->i_dur = htole16(dur); 1325 } 1326 1327 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1328 1329 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1330 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1331 1332 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1333 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1334 1335 return 0; 1336} 1337 1338static void 1339rum_start(struct ifnet *ifp) 1340{ 1341 struct rum_softc *sc = ifp->if_softc; 1342 struct ieee80211_node *ni; 1343 struct mbuf *m; 1344 1345 RUM_LOCK(sc); 1346 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1347 RUM_UNLOCK(sc); 1348 return; 1349 } 1350 for (;;) { 1351 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1352 if (m == NULL) 1353 break; 1354 if (sc->tx_nfree < RUM_TX_MINFREE) { 1355 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1356 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1357 break; 1358 } 1359 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1360 m = ieee80211_encap(ni, m); 1361 if (m == NULL) { 1362 ieee80211_free_node(ni); 1363 ifp->if_oerrors++; 1364 continue; 1365 } 1366 if (rum_tx_data(sc, m, ni) != 0) { 1367 ieee80211_free_node(ni); 1368 ifp->if_oerrors++; 1369 break; 1370 } 1371 } 1372 RUM_UNLOCK(sc); 1373} 1374 1375static int 1376rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1377{ 1378 struct rum_softc *sc = ifp->if_softc; 1379 struct ieee80211com *ic = ifp->if_l2com; 1380 struct ifreq *ifr = (struct ifreq *) data; 1381 int error = 0, startall = 0; 1382 1383 switch (cmd) { 1384 case SIOCSIFFLAGS: 1385 RUM_LOCK(sc); 1386 if (ifp->if_flags & IFF_UP) { 1387 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1388 rum_queue_command(sc, rum_init_task, 1389 &sc->sc_synctask[0].hdr, 1390 &sc->sc_synctask[1].hdr); 1391 startall = 1; 1392 } else 1393 rum_queue_command(sc, rum_promisctask, 1394 &sc->sc_promisctask[0].hdr, 1395 &sc->sc_promisctask[1].hdr); 1396 } else { 1397 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1398 rum_queue_command(sc, rum_stop_task, 1399 &sc->sc_synctask[0].hdr, 1400 &sc->sc_synctask[1].hdr); 1401 } 1402 } 1403 RUM_UNLOCK(sc); 1404 if (startall) 1405 ieee80211_start_all(ic); 1406 break; 1407 case SIOCGIFMEDIA: 1408 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1409 break; 1410 case SIOCGIFADDR: 1411 error = ether_ioctl(ifp, cmd, data); 1412 break; 1413 default: 1414 error = EINVAL; 1415 break; 1416 } 1417 return error; 1418} 1419 1420static void 1421rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1422{ 1423 struct usb2_device_request req; 1424 usb2_error_t error; 1425 1426 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1427 req.bRequest = RT2573_READ_EEPROM; 1428 USETW(req.wValue, 0); 1429 USETW(req.wIndex, addr); 1430 USETW(req.wLength, len); 1431 1432 error = rum_do_request(sc, &req, buf); 1433 if (error != 0) { 1434 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1435 usb2_errstr(error)); 1436 } 1437} 1438 1439static uint32_t 1440rum_read(struct rum_softc *sc, uint16_t reg) 1441{ 1442 uint32_t val; 1443 1444 rum_read_multi(sc, reg, &val, sizeof val); 1445 1446 return le32toh(val); 1447} 1448 1449static void 1450rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1451{ 1452 struct usb2_device_request req; 1453 usb2_error_t error; 1454 1455 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1456 req.bRequest = RT2573_READ_MULTI_MAC; 1457 USETW(req.wValue, 0); 1458 USETW(req.wIndex, reg); 1459 USETW(req.wLength, len); 1460 1461 error = rum_do_request(sc, &req, buf); 1462 if (error != 0) { 1463 device_printf(sc->sc_dev, 1464 "could not multi read MAC register: %s\n", 1465 usb2_errstr(error)); 1466 } 1467} 1468 1469static usb2_error_t 1470rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1471{ 1472 uint32_t tmp = htole32(val); 1473 1474 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1475} 1476 1477static usb2_error_t 1478rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1479{ 1480 struct usb2_device_request req; 1481 usb2_error_t error; 1482 1483 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1484 req.bRequest = RT2573_WRITE_MULTI_MAC; 1485 USETW(req.wValue, 0); 1486 USETW(req.wIndex, reg); 1487 USETW(req.wLength, len); 1488 1489 error = rum_do_request(sc, &req, buf); 1490 if (error != 0) { 1491 device_printf(sc->sc_dev, 1492 "could not multi write MAC register: %s\n", 1493 usb2_errstr(error)); 1494 } 1495 return (error); 1496} 1497 1498static void 1499rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1500{ 1501 uint32_t tmp; 1502 int ntries; 1503 1504 DPRINTFN(2, "reg=0x%08x\n", reg); 1505 1506 for (ntries = 0; ntries < 100; ntries++) { 1507 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1508 break; 1509 if (rum_pause(sc, hz / 100)) 1510 break; 1511 } 1512 if (ntries == 100) { 1513 device_printf(sc->sc_dev, "could not write to BBP\n"); 1514 return; 1515 } 1516 1517 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1518 rum_write(sc, RT2573_PHY_CSR3, tmp); 1519} 1520 1521static uint8_t 1522rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1523{ 1524 uint32_t val; 1525 int ntries; 1526 1527 DPRINTFN(2, "reg=0x%08x\n", reg); 1528 1529 for (ntries = 0; ntries < 100; ntries++) { 1530 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1531 break; 1532 if (rum_pause(sc, hz / 100)) 1533 break; 1534 } 1535 if (ntries == 100) { 1536 device_printf(sc->sc_dev, "could not read BBP\n"); 1537 return 0; 1538 } 1539 1540 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1541 rum_write(sc, RT2573_PHY_CSR3, val); 1542 1543 for (ntries = 0; ntries < 100; ntries++) { 1544 val = rum_read(sc, RT2573_PHY_CSR3); 1545 if (!(val & RT2573_BBP_BUSY)) 1546 return val & 0xff; 1547 if (rum_pause(sc, hz / 100)) 1548 break; 1549 } 1550 1551 device_printf(sc->sc_dev, "could not read BBP\n"); 1552 return 0; 1553} 1554 1555static void 1556rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1557{ 1558 uint32_t tmp; 1559 int ntries; 1560 1561 for (ntries = 0; ntries < 100; ntries++) { 1562 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1563 break; 1564 if (rum_pause(sc, hz / 100)) 1565 break; 1566 } 1567 if (ntries == 100) { 1568 device_printf(sc->sc_dev, "could not write to RF\n"); 1569 return; 1570 } 1571 1572 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1573 (reg & 3); 1574 rum_write(sc, RT2573_PHY_CSR4, tmp); 1575 1576 /* remember last written value in sc */ 1577 sc->rf_regs[reg] = val; 1578 1579 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1580} 1581 1582static void 1583rum_select_antenna(struct rum_softc *sc) 1584{ 1585 uint8_t bbp4, bbp77; 1586 uint32_t tmp; 1587 1588 bbp4 = rum_bbp_read(sc, 4); 1589 bbp77 = rum_bbp_read(sc, 77); 1590 1591 /* TBD */ 1592 1593 /* make sure Rx is disabled before switching antenna */ 1594 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1595 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1596 1597 rum_bbp_write(sc, 4, bbp4); 1598 rum_bbp_write(sc, 77, bbp77); 1599 1600 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1601} 1602 1603/* 1604 * Enable multi-rate retries for frames sent at OFDM rates. 1605 * In 802.11b/g mode, allow fallback to CCK rates. 1606 */ 1607static void 1608rum_enable_mrr(struct rum_softc *sc) 1609{ 1610 struct ifnet *ifp = sc->sc_ifp; 1611 struct ieee80211com *ic = ifp->if_l2com; 1612 uint32_t tmp; 1613 1614 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1615 1616 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1617 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1618 tmp |= RT2573_MRR_CCK_FALLBACK; 1619 tmp |= RT2573_MRR_ENABLED; 1620 1621 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1622} 1623 1624static void 1625rum_set_txpreamble(struct rum_softc *sc) 1626{ 1627 struct ifnet *ifp = sc->sc_ifp; 1628 struct ieee80211com *ic = ifp->if_l2com; 1629 uint32_t tmp; 1630 1631 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1632 1633 tmp &= ~RT2573_SHORT_PREAMBLE; 1634 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1635 tmp |= RT2573_SHORT_PREAMBLE; 1636 1637 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1638} 1639 1640static void 1641rum_set_basicrates(struct rum_softc *sc) 1642{ 1643 struct ifnet *ifp = sc->sc_ifp; 1644 struct ieee80211com *ic = ifp->if_l2com; 1645 1646 /* update basic rate set */ 1647 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1648 /* 11b basic rates: 1, 2Mbps */ 1649 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1650 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1651 /* 11a basic rates: 6, 12, 24Mbps */ 1652 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1653 } else { 1654 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1655 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1656 } 1657} 1658 1659/* 1660 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1661 * driver. 1662 */ 1663static void 1664rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1665{ 1666 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1667 uint32_t tmp; 1668 1669 /* update all BBP registers that depend on the band */ 1670 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1671 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1672 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1673 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1674 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1675 } 1676 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1677 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1678 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1679 } 1680 1681 sc->bbp17 = bbp17; 1682 rum_bbp_write(sc, 17, bbp17); 1683 rum_bbp_write(sc, 96, bbp96); 1684 rum_bbp_write(sc, 104, bbp104); 1685 1686 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1687 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1688 rum_bbp_write(sc, 75, 0x80); 1689 rum_bbp_write(sc, 86, 0x80); 1690 rum_bbp_write(sc, 88, 0x80); 1691 } 1692 1693 rum_bbp_write(sc, 35, bbp35); 1694 rum_bbp_write(sc, 97, bbp97); 1695 rum_bbp_write(sc, 98, bbp98); 1696 1697 tmp = rum_read(sc, RT2573_PHY_CSR0); 1698 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1699 if (IEEE80211_IS_CHAN_2GHZ(c)) 1700 tmp |= RT2573_PA_PE_2GHZ; 1701 else 1702 tmp |= RT2573_PA_PE_5GHZ; 1703 rum_write(sc, RT2573_PHY_CSR0, tmp); 1704} 1705 1706static void 1707rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1708{ 1709 struct ifnet *ifp = sc->sc_ifp; 1710 struct ieee80211com *ic = ifp->if_l2com; 1711 const struct rfprog *rfprog; 1712 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1713 int8_t power; 1714 int i, chan; 1715 1716 chan = ieee80211_chan2ieee(ic, c); 1717 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1718 return; 1719 1720 /* select the appropriate RF settings based on what EEPROM says */ 1721 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1722 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1723 1724 /* find the settings for this channel (we know it exists) */ 1725 for (i = 0; rfprog[i].chan != chan; i++); 1726 1727 power = sc->txpow[i]; 1728 if (power < 0) { 1729 bbp94 += power; 1730 power = 0; 1731 } else if (power > 31) { 1732 bbp94 += power - 31; 1733 power = 31; 1734 } 1735 1736 /* 1737 * If we are switching from the 2GHz band to the 5GHz band or 1738 * vice-versa, BBP registers need to be reprogrammed. 1739 */ 1740 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1741 rum_select_band(sc, c); 1742 rum_select_antenna(sc); 1743 } 1744 ic->ic_curchan = c; 1745 1746 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1747 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1748 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1749 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1750 1751 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1752 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1753 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1754 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1755 1756 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1757 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1758 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1759 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1760 1761 rum_pause(sc, hz / 100); 1762 1763 /* enable smart mode for MIMO-capable RFs */ 1764 bbp3 = rum_bbp_read(sc, 3); 1765 1766 bbp3 &= ~RT2573_SMART_MODE; 1767 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1768 bbp3 |= RT2573_SMART_MODE; 1769 1770 rum_bbp_write(sc, 3, bbp3); 1771 1772 if (bbp94 != RT2573_BBPR94_DEFAULT) 1773 rum_bbp_write(sc, 94, bbp94); 1774 1775 /* give the chip some extra time to do the switchover */ 1776 rum_pause(sc, hz / 100); 1777} 1778 1779/* 1780 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1781 * and HostAP operating modes. 1782 */ 1783static void 1784rum_enable_tsf_sync(struct rum_softc *sc) 1785{ 1786 struct ifnet *ifp = sc->sc_ifp; 1787 struct ieee80211com *ic = ifp->if_l2com; 1788 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1789 uint32_t tmp; 1790 1791 if (vap->iv_opmode != IEEE80211_M_STA) { 1792 /* 1793 * Change default 16ms TBTT adjustment to 8ms. 1794 * Must be done before enabling beacon generation. 1795 */ 1796 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1797 } 1798 1799 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1800 1801 /* set beacon interval (in 1/16ms unit) */ 1802 tmp |= vap->iv_bss->ni_intval * 16; 1803 1804 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1805 if (vap->iv_opmode == IEEE80211_M_STA) 1806 tmp |= RT2573_TSF_MODE(1); 1807 else 1808 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1809 1810 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1811} 1812 1813static void 1814rum_update_slot(struct ifnet *ifp) 1815{ 1816 struct rum_softc *sc = ifp->if_softc; 1817 struct ieee80211com *ic = ifp->if_l2com; 1818 uint8_t slottime; 1819 uint32_t tmp; 1820 1821 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1822 1823 tmp = rum_read(sc, RT2573_MAC_CSR9); 1824 tmp = (tmp & ~0xff) | slottime; 1825 rum_write(sc, RT2573_MAC_CSR9, tmp); 1826 1827 DPRINTF("setting slot time to %uus\n", slottime); 1828} 1829 1830static void 1831rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1832{ 1833 uint32_t tmp; 1834 1835 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1836 rum_write(sc, RT2573_MAC_CSR4, tmp); 1837 1838 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1839 rum_write(sc, RT2573_MAC_CSR5, tmp); 1840} 1841 1842static void 1843rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1844{ 1845 uint32_t tmp; 1846 1847 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1848 rum_write(sc, RT2573_MAC_CSR2, tmp); 1849 1850 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1851 rum_write(sc, RT2573_MAC_CSR3, tmp); 1852} 1853 1854static void 1855rum_promisctask(struct usb2_proc_msg *pm) 1856{ 1857 struct rum_task *task = (struct rum_task *)pm; 1858 struct rum_softc *sc = task->sc; 1859 struct ifnet *ifp = sc->sc_ifp; 1860 uint32_t tmp; 1861 1862 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1863 1864 tmp &= ~RT2573_DROP_NOT_TO_ME; 1865 if (!(ifp->if_flags & IFF_PROMISC)) 1866 tmp |= RT2573_DROP_NOT_TO_ME; 1867 1868 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1869 1870 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1871 "entering" : "leaving"); 1872} 1873 1874static void 1875rum_update_promisc(struct ifnet *ifp) 1876{ 1877 struct rum_softc *sc = ifp->if_softc; 1878 1879 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1880 return; 1881 1882 RUM_LOCK(sc); 1883 rum_queue_command(sc, rum_promisctask, 1884 &sc->sc_promisctask[0].hdr, 1885 &sc->sc_promisctask[1].hdr); 1886 RUM_UNLOCK(sc); 1887} 1888 1889static const char * 1890rum_get_rf(int rev) 1891{ 1892 switch (rev) { 1893 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1894 case RT2573_RF_2528: return "RT2528"; 1895 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1896 case RT2573_RF_5226: return "RT5226"; 1897 default: return "unknown"; 1898 } 1899} 1900 1901static void 1902rum_read_eeprom(struct rum_softc *sc) 1903{ 1904 uint16_t val; 1905#ifdef RUM_DEBUG 1906 int i; 1907#endif 1908 1909 /* read MAC address */ 1910 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1911 1912 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1913 val = le16toh(val); 1914 sc->rf_rev = (val >> 11) & 0x1f; 1915 sc->hw_radio = (val >> 10) & 0x1; 1916 sc->rx_ant = (val >> 4) & 0x3; 1917 sc->tx_ant = (val >> 2) & 0x3; 1918 sc->nb_ant = val & 0x3; 1919 1920 DPRINTF("RF revision=%d\n", sc->rf_rev); 1921 1922 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1923 val = le16toh(val); 1924 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1925 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1926 1927 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1928 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1929 1930 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1931 val = le16toh(val); 1932 if ((val & 0xff) != 0xff) 1933 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1934 1935 /* Only [-10, 10] is valid */ 1936 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1937 sc->rssi_2ghz_corr = 0; 1938 1939 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1940 val = le16toh(val); 1941 if ((val & 0xff) != 0xff) 1942 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1943 1944 /* Only [-10, 10] is valid */ 1945 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1946 sc->rssi_5ghz_corr = 0; 1947 1948 if (sc->ext_2ghz_lna) 1949 sc->rssi_2ghz_corr -= 14; 1950 if (sc->ext_5ghz_lna) 1951 sc->rssi_5ghz_corr -= 14; 1952 1953 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1954 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1955 1956 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1957 val = le16toh(val); 1958 if ((val & 0xff) != 0xff) 1959 sc->rffreq = val & 0xff; 1960 1961 DPRINTF("RF freq=%d\n", sc->rffreq); 1962 1963 /* read Tx power for all a/b/g channels */ 1964 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1965 /* XXX default Tx power for 802.11a channels */ 1966 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1967#ifdef RUM_DEBUG 1968 for (i = 0; i < 14; i++) 1969 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1970#endif 1971 1972 /* read default values for BBP registers */ 1973 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1974#ifdef RUM_DEBUG 1975 for (i = 0; i < 14; i++) { 1976 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1977 continue; 1978 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1979 sc->bbp_prom[i].val); 1980 } 1981#endif 1982} 1983 1984static int 1985rum_bbp_init(struct rum_softc *sc) 1986{ 1987#define N(a) (sizeof (a) / sizeof ((a)[0])) 1988 int i, ntries; 1989 1990 /* wait for BBP to be ready */ 1991 for (ntries = 0; ntries < 100; ntries++) { 1992 const uint8_t val = rum_bbp_read(sc, 0); 1993 if (val != 0 && val != 0xff) 1994 break; 1995 if (rum_pause(sc, hz / 100)) 1996 break; 1997 } 1998 if (ntries == 100) { 1999 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2000 return EIO; 2001 } 2002 2003 /* initialize BBP registers to default values */ 2004 for (i = 0; i < N(rum_def_bbp); i++) 2005 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2006 2007 /* write vendor-specific BBP values (from EEPROM) */ 2008 for (i = 0; i < 16; i++) { 2009 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2010 continue; 2011 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2012 } 2013 2014 return 0; 2015#undef N 2016} 2017 2018static void 2019rum_init_task(struct usb2_proc_msg *pm) 2020{ 2021#define N(a) (sizeof (a) / sizeof ((a)[0])) 2022 struct rum_task *task = (struct rum_task *)pm; 2023 struct rum_softc *sc = task->sc; 2024 struct ifnet *ifp = sc->sc_ifp; 2025 struct ieee80211com *ic = ifp->if_l2com; 2026 uint32_t tmp; 2027 usb2_error_t error; 2028 int i, ntries; 2029 2030 RUM_LOCK_ASSERT(sc, MA_OWNED); 2031 2032 rum_stop_task(pm); 2033 2034 /* initialize MAC registers to default values */ 2035 for (i = 0; i < N(rum_def_mac); i++) 2036 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2037 2038 /* set host ready */ 2039 rum_write(sc, RT2573_MAC_CSR1, 3); 2040 rum_write(sc, RT2573_MAC_CSR1, 0); 2041 2042 /* wait for BBP/RF to wakeup */ 2043 for (ntries = 0; ntries < 100; ntries++) { 2044 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2045 break; 2046 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2047 if (rum_pause(sc, hz / 100)) 2048 break; 2049 } 2050 if (ntries == 100) { 2051 device_printf(sc->sc_dev, 2052 "timeout waiting for BBP/RF to wakeup\n"); 2053 goto fail; 2054 } 2055 2056 if ((error = rum_bbp_init(sc)) != 0) 2057 goto fail; 2058 2059 /* select default channel */ 2060 rum_select_band(sc, ic->ic_curchan); 2061 rum_select_antenna(sc); 2062 rum_set_chan(sc, ic->ic_curchan); 2063 2064 /* clear STA registers */ 2065 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2066 2067 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 2068 rum_set_macaddr(sc, ic->ic_myaddr); 2069 2070 /* initialize ASIC */ 2071 rum_write(sc, RT2573_MAC_CSR1, 4); 2072 2073 /* 2074 * Allocate Tx and Rx xfer queues. 2075 */ 2076 rum_setup_tx_list(sc); 2077 2078 /* update Rx filter */ 2079 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2080 2081 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2082 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2083 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2084 RT2573_DROP_ACKCTS; 2085 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2086 tmp |= RT2573_DROP_TODS; 2087 if (!(ifp->if_flags & IFF_PROMISC)) 2088 tmp |= RT2573_DROP_NOT_TO_ME; 2089 } 2090 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2091 2092 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2093 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2094 usb2_transfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2095 usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2096 return; 2097 2098fail: rum_stop_task(pm); 2099#undef N 2100} 2101 2102static void 2103rum_init(void *priv) 2104{ 2105 struct rum_softc *sc = priv; 2106 struct ifnet *ifp = sc->sc_ifp; 2107 struct ieee80211com *ic = ifp->if_l2com; 2108 2109 RUM_LOCK(sc); 2110 rum_queue_command(sc, rum_init_task, 2111 &sc->sc_synctask[0].hdr, 2112 &sc->sc_synctask[1].hdr); 2113 RUM_UNLOCK(sc); 2114 2115 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2116 ieee80211_start_all(ic); /* start all vap's */ 2117} 2118 2119static void 2120rum_stop_task(struct usb2_proc_msg *pm) 2121{ 2122 struct rum_task *task = (struct rum_task *)pm; 2123 struct rum_softc *sc = task->sc; 2124 struct ifnet *ifp = sc->sc_ifp; 2125 uint32_t tmp; 2126 2127 RUM_LOCK_ASSERT(sc, MA_OWNED); 2128 2129 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2130 2131 RUM_UNLOCK(sc); 2132 2133 /* 2134 * Drain the USB transfers, if not already drained: 2135 */ 2136 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2137 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2138 2139 RUM_LOCK(sc); 2140 2141 rum_unsetup_tx_list(sc); 2142 2143 /* disable Rx */ 2144 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2145 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2146 2147 /* reset ASIC */ 2148 rum_write(sc, RT2573_MAC_CSR1, 3); 2149 rum_write(sc, RT2573_MAC_CSR1, 0); 2150} 2151 2152static void 2153rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2154{ 2155 struct usb2_device_request req; 2156 uint16_t reg = RT2573_MCU_CODE_BASE; 2157 usb2_error_t err; 2158 2159 /* copy firmware image into NIC */ 2160 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2161 err = rum_write(sc, reg, UGETDW(ucode)); 2162 if (err) { 2163 /* firmware already loaded ? */ 2164 device_printf(sc->sc_dev, "Firmware load " 2165 "failure! (ignored)\n"); 2166 break; 2167 } 2168 } 2169 2170 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2171 req.bRequest = RT2573_MCU_CNTL; 2172 USETW(req.wValue, RT2573_MCU_RUN); 2173 USETW(req.wIndex, 0); 2174 USETW(req.wLength, 0); 2175 2176 err = rum_do_request(sc, &req, NULL); 2177 if (err != 0) { 2178 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2179 usb2_errstr(err)); 2180 } 2181 2182 /* give the chip some time to boot */ 2183 rum_pause(sc, hz / 8); 2184} 2185 2186static int 2187rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2188{ 2189 struct ieee80211com *ic = vap->iv_ic; 2190 const struct ieee80211_txparam *tp; 2191 struct rum_tx_desc desc; 2192 struct mbuf *m0; 2193 2194 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2195 if (m0 == NULL) { 2196 return ENOBUFS; 2197 } 2198 2199 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2200 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2201 m0->m_pkthdr.len, tp->mgmtrate); 2202 2203 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2204 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2205 2206 /* copy beacon header and payload into NIC memory */ 2207 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2208 m0->m_pkthdr.len); 2209 2210 m_freem(m0); 2211 2212 return 0; 2213} 2214 2215static int 2216rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2217 const struct ieee80211_bpf_params *params) 2218{ 2219 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2220 struct rum_softc *sc = ifp->if_softc; 2221 2222 RUM_LOCK(sc); 2223 /* prevent management frames from being sent if we're not ready */ 2224 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2225 RUM_UNLOCK(sc); 2226 m_freem(m); 2227 ieee80211_free_node(ni); 2228 return ENETDOWN; 2229 } 2230 if (sc->tx_nfree < RUM_TX_MINFREE) { 2231 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2232 RUM_UNLOCK(sc); 2233 m_freem(m); 2234 ieee80211_free_node(ni); 2235 return EIO; 2236 } 2237 2238 ifp->if_opackets++; 2239 2240 if (params == NULL) { 2241 /* 2242 * Legacy path; interpret frame contents to decide 2243 * precisely how to send the frame. 2244 */ 2245 if (rum_tx_mgt(sc, m, ni) != 0) 2246 goto bad; 2247 } else { 2248 /* 2249 * Caller supplied explicit parameters to use in 2250 * sending the frame. 2251 */ 2252 if (rum_tx_raw(sc, m, ni, params) != 0) 2253 goto bad; 2254 } 2255 RUM_UNLOCK(sc); 2256 2257 return 0; 2258bad: 2259 ifp->if_oerrors++; 2260 RUM_UNLOCK(sc); 2261 ieee80211_free_node(ni); 2262 return EIO; 2263} 2264 2265static void 2266rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2267{ 2268 struct ieee80211vap *vap = ni->ni_vap; 2269 struct rum_vap *rvp = RUM_VAP(vap); 2270 2271 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2272 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2273 2274 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2275 2276 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2277} 2278 2279static void 2280rum_amrr_timeout(void *arg) 2281{ 2282 struct rum_vap *rvp = arg; 2283 struct rum_softc *sc = rvp->sc; 2284 2285 rum_queue_command(sc, rum_amrr_task, 2286 &rvp->amrr_task[0].hdr, &rvp->amrr_task[1].hdr); 2287} 2288 2289static void 2290rum_amrr_task(struct usb2_proc_msg *pm) 2291{ 2292 struct rum_task *task = (struct rum_task *)pm; 2293 struct rum_softc *sc = task->sc; 2294 struct ifnet *ifp = sc->sc_ifp; 2295 struct ieee80211com *ic = ifp->if_l2com; 2296 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2297 struct rum_vap *rvp = RUM_VAP(vap); 2298 struct ieee80211_node *ni = vap->iv_bss; 2299 int ok, fail; 2300 2301 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2302 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2303 2304 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2305 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2306 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2307 2308 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2309 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2310 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2311 2312 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2313 2314 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2315} 2316 2317/* ARGUSED */ 2318static struct ieee80211_node * 2319rum_node_alloc(struct ieee80211vap *vap __unused, 2320 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2321{ 2322 struct rum_node *rn; 2323 2324 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2325 return rn != NULL ? &rn->ni : NULL; 2326} 2327 2328static void 2329rum_newassoc(struct ieee80211_node *ni, int isnew) 2330{ 2331 struct ieee80211vap *vap = ni->ni_vap; 2332 2333 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2334} 2335 2336static void 2337rum_scan_start(struct ieee80211com *ic) 2338{ 2339 struct rum_softc *sc = ic->ic_ifp->if_softc; 2340 2341 RUM_LOCK(sc); 2342 /* do it in a process context */ 2343 sc->sc_scan_action = RUM_SCAN_START; 2344 rum_queue_command(sc, rum_scantask, 2345 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2346 RUM_UNLOCK(sc); 2347 2348} 2349 2350static void 2351rum_scan_end(struct ieee80211com *ic) 2352{ 2353 struct rum_softc *sc = ic->ic_ifp->if_softc; 2354 2355 RUM_LOCK(sc); 2356 /* do it in a process context */ 2357 sc->sc_scan_action = RUM_SCAN_END; 2358 rum_queue_command(sc, rum_scantask, 2359 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2360 RUM_UNLOCK(sc); 2361 2362} 2363 2364static void 2365rum_set_channel(struct ieee80211com *ic) 2366{ 2367 struct rum_softc *sc = ic->ic_ifp->if_softc; 2368 2369 RUM_LOCK(sc); 2370 /* do it in a process context */ 2371 sc->sc_scan_action = RUM_SET_CHANNEL; 2372 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 2373 rum_queue_command(sc, rum_scantask, 2374 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2375 RUM_UNLOCK(sc); 2376} 2377 2378static void 2379rum_scantask(struct usb2_proc_msg *pm) 2380{ 2381 struct rum_task *task = (struct rum_task *)pm; 2382 struct rum_softc *sc = task->sc; 2383 struct ifnet *ifp = sc->sc_ifp; 2384 struct ieee80211com *ic = ifp->if_l2com; 2385 uint32_t tmp; 2386 2387 RUM_LOCK_ASSERT(sc, MA_OWNED); 2388 2389 switch (sc->sc_scan_action) { 2390 case RUM_SCAN_START: 2391 /* abort TSF synchronization */ 2392 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2393 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2394 rum_set_bssid(sc, ifp->if_broadcastaddr); 2395 break; 2396 2397 case RUM_SET_CHANNEL: 2398 rum_set_chan(sc, ic->ic_curchan); 2399 break; 2400 2401 default: /* RUM_SCAN_END */ 2402 rum_enable_tsf_sync(sc); 2403 rum_set_bssid(sc, sc->sc_bssid); 2404 break; 2405 } 2406} 2407 2408static int 2409rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2410{ 2411 struct ifnet *ifp = sc->sc_ifp; 2412 struct ieee80211com *ic = ifp->if_l2com; 2413 int lna, agc, rssi; 2414 2415 lna = (raw >> 5) & 0x3; 2416 agc = raw & 0x1f; 2417 2418 if (lna == 0) { 2419 /* 2420 * No RSSI mapping 2421 * 2422 * NB: Since RSSI is relative to noise floor, -1 is 2423 * adequate for caller to know error happened. 2424 */ 2425 return -1; 2426 } 2427 2428 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2429 2430 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2431 rssi += sc->rssi_2ghz_corr; 2432 2433 if (lna == 1) 2434 rssi -= 64; 2435 else if (lna == 2) 2436 rssi -= 74; 2437 else if (lna == 3) 2438 rssi -= 90; 2439 } else { 2440 rssi += sc->rssi_5ghz_corr; 2441 2442 if (!sc->ext_5ghz_lna && lna != 1) 2443 rssi += 4; 2444 2445 if (lna == 1) 2446 rssi -= 64; 2447 else if (lna == 2) 2448 rssi -= 86; 2449 else if (lna == 3) 2450 rssi -= 100; 2451 } 2452 return rssi; 2453} 2454 2455static int 2456rum_pause(struct rum_softc *sc, int timeout) 2457{ 2458 if (usb2_proc_is_gone(&sc->sc_tq)) 2459 return (1); 2460 2461 usb2_pause_mtx(&sc->sc_mtx, timeout); 2462 return (0); 2463} 2464 2465static void 2466rum_command_wrapper(struct usb2_proc_msg *pm) 2467{ 2468 struct rum_task *task = (struct rum_task *)pm; 2469 struct rum_softc *sc = task->sc; 2470 struct ifnet *ifp; 2471 2472 /* wait for pending transfer, if any */ 2473 while (usb2_transfer_pending(sc->sc_xfer[RUM_BULK_WR])) 2474 cv_wait(&sc->sc_cmd_cv, &sc->sc_mtx); 2475 2476 /* make sure any hardware buffers are emptied */ 2477 rum_pause(sc, hz / 1000); 2478 2479 /* execute task */ 2480 task->func(pm); 2481 2482 /* check if this is the last task executed */ 2483 if (sc->sc_last_task == task) { 2484 sc->sc_last_task = NULL; 2485 ifp = sc->sc_ifp; 2486 /* re-start TX, if any */ 2487 if ((ifp != NULL) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 2488 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 2489 } 2490} 2491 2492static void 2493rum_queue_command(struct rum_softc *sc, usb2_proc_callback_t *fn, 2494 struct usb2_proc_msg *t0, struct usb2_proc_msg *t1) 2495{ 2496 struct rum_task *task; 2497 2498 RUM_LOCK_ASSERT(sc, MA_OWNED); 2499 2500 /* 2501 * NOTE: The task cannot get executed before we drop the 2502 * "sc_mtx" mutex. It is safe to update fields in the message 2503 * structure after that the message got queued. 2504 */ 2505 task = (struct rum_task *) 2506 usb2_proc_msignal(&sc->sc_tq, t0, t1); 2507 2508 /* Setup callback and softc pointers */ 2509 task->hdr.pm_callback = rum_command_wrapper; 2510 task->func = fn; 2511 task->sc = sc; 2512 2513 /* Make sure that any TX operation will stop */ 2514 sc->sc_last_task = task; 2515 2516 /* 2517 * Init, stop and flush must be synchronous! 2518 */ 2519 if ((fn == rum_init_task) || (fn == rum_stop_task) || 2520 (fn == rum_flush_task)) 2521 usb2_proc_mwait(&sc->sc_tq, t0, t1); 2522} 2523 2524static device_method_t rum_methods[] = { 2525 /* Device interface */ 2526 DEVMETHOD(device_probe, rum_match), 2527 DEVMETHOD(device_attach, rum_attach), 2528 DEVMETHOD(device_detach, rum_detach), 2529 2530 { 0, 0 } 2531}; 2532 2533static driver_t rum_driver = { 2534 .name = "rum", 2535 .methods = rum_methods, 2536 .size = sizeof(struct rum_softc), 2537}; 2538 2539static devclass_t rum_devclass; 2540 2541DRIVER_MODULE(rum, ushub, rum_driver, rum_devclass, NULL, 0); 2542