if_rum.c revision 188417
1/* $FreeBSD: head/sys/dev/usb2/wlan/if_rum2.c 188417 2009-02-09 22:12:47Z 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/usb2/wlan/if_rum2.c 188417 2009-02-09 22:12:47Z thompsa $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <dev/usb2/include/usb2_devid.h> 30#include <dev/usb2/include/usb2_standard.h> 31#include <dev/usb2/include/usb2_mfunc.h> 32#include <dev/usb2/include/usb2_error.h> 33 34#define USB_DEBUG_VAR rum_debug 35 36#include <dev/usb2/core/usb2_core.h> 37#include <dev/usb2/core/usb2_lookup.h> 38#include <dev/usb2/core/usb2_process.h> 39#include <dev/usb2/core/usb2_debug.h> 40#include <dev/usb2/core/usb2_request.h> 41#include <dev/usb2/core/usb2_busdma.h> 42#include <dev/usb2/core/usb2_util.h> 43 44#include <dev/usb2/wlan/usb2_wlan.h> 45#include <dev/usb2/wlan/if_rumreg.h> 46#include <dev/usb2/wlan/if_rumvar.h> 47#include <dev/usb2/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 57#define rum_do_request(sc,req,data) \ 58 usb2_do_request_proc((sc)->sc_udev, &(sc)->sc_tq, req, data, 0, NULL, 5000) 59 60static const struct usb2_device_id rum_devs[] = { 61 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) }, 62 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) }, 63 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3) }, 64 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4) }, 65 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700) }, 66 { USB_VP(USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO) }, 67 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1) }, 68 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2) }, 69 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A) }, 70 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3) }, 71 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC) }, 72 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR) }, 73 { USB_VP(USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2) }, 74 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL) }, 75 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX) }, 76 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F) }, 77 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573) }, 78 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1) }, 79 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340) }, 80 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111) }, 81 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110) }, 82 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS) }, 83 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS) }, 84 { USB_VP(USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573) }, 85 { USB_VP(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573) }, 86 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB) }, 87 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) }, 88 { USB_VP(USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G) }, 89 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP) }, 90 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP) }, 91 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1) }, 92 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2) }, 93 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3) }, 94 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4) }, 95 { USB_VP(USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573) }, 96 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP) }, 97 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2) }, 98 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM) }, 99 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573) }, 100 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2) }, 101 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573) }, 102 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2) }, 103 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671) }, 104 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2) }, 105 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172) }, 106 { USB_VP(USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573) }, 107 { USB_VP(USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573) }, 108}; 109 110MODULE_DEPEND(rum, wlan, 1, 1, 1); 111MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 112MODULE_DEPEND(rum, usb2_wlan, 1, 1, 1); 113MODULE_DEPEND(rum, usb2_core, 1, 1, 1); 114 115static device_probe_t rum_match; 116static device_attach_t rum_attach; 117static device_detach_t rum_detach; 118 119static usb2_callback_t rum_bulk_read_callback; 120static usb2_callback_t rum_bulk_write_callback; 121 122static usb2_proc_callback_t rum_attach_post; 123static usb2_proc_callback_t rum_task; 124static usb2_proc_callback_t rum_scantask; 125static usb2_proc_callback_t rum_promisctask; 126static usb2_proc_callback_t rum_amrr_task; 127static usb2_proc_callback_t rum_init_task; 128static usb2_proc_callback_t rum_stop_task; 129 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 void rum_write(struct rum_softc *, uint16_t, uint32_t); 158static void 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 const char *rum_get_rf(int); 176static void rum_read_eeprom(struct rum_softc *); 177static int rum_bbp_init(struct rum_softc *); 178static void rum_init(void *); 179static int rum_load_microcode(struct rum_softc *, const u_char *, 180 size_t); 181static int rum_prepare_beacon(struct rum_softc *, 182 struct ieee80211vap *); 183static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 184 const struct ieee80211_bpf_params *); 185static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 186 const uint8_t mac[IEEE80211_ADDR_LEN]); 187static void rum_newassoc(struct ieee80211_node *, int); 188static void rum_scan_start(struct ieee80211com *); 189static void rum_scan_end(struct ieee80211com *); 190static void rum_set_channel(struct ieee80211com *); 191static int rum_get_rssi(struct rum_softc *, uint8_t); 192static void rum_amrr_start(struct rum_softc *, 193 struct ieee80211_node *); 194static void rum_amrr_timeout(void *); 195static void rum_queue_command(struct rum_softc *, 196 usb2_proc_callback_t *, struct usb2_proc_msg *, 197 struct usb2_proc_msg *); 198 199static const struct { 200 uint32_t reg; 201 uint32_t val; 202} rum_def_mac[] = { 203 { RT2573_TXRX_CSR0, 0x025fb032 }, 204 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 205 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 206 { RT2573_TXRX_CSR3, 0x00858687 }, 207 { RT2573_TXRX_CSR7, 0x2e31353b }, 208 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 209 { RT2573_TXRX_CSR15, 0x0000000f }, 210 { RT2573_MAC_CSR6, 0x00000fff }, 211 { RT2573_MAC_CSR8, 0x016c030a }, 212 { RT2573_MAC_CSR10, 0x00000718 }, 213 { RT2573_MAC_CSR12, 0x00000004 }, 214 { RT2573_MAC_CSR13, 0x00007f00 }, 215 { RT2573_SEC_CSR0, 0x00000000 }, 216 { RT2573_SEC_CSR1, 0x00000000 }, 217 { RT2573_SEC_CSR5, 0x00000000 }, 218 { RT2573_PHY_CSR1, 0x000023b0 }, 219 { RT2573_PHY_CSR5, 0x00040a06 }, 220 { RT2573_PHY_CSR6, 0x00080606 }, 221 { RT2573_PHY_CSR7, 0x00000408 }, 222 { RT2573_AIFSN_CSR, 0x00002273 }, 223 { RT2573_CWMIN_CSR, 0x00002344 }, 224 { RT2573_CWMAX_CSR, 0x000034aa } 225}; 226 227static const struct { 228 uint8_t reg; 229 uint8_t val; 230} rum_def_bbp[] = { 231 { 3, 0x80 }, 232 { 15, 0x30 }, 233 { 17, 0x20 }, 234 { 21, 0xc8 }, 235 { 22, 0x38 }, 236 { 23, 0x06 }, 237 { 24, 0xfe }, 238 { 25, 0x0a }, 239 { 26, 0x0d }, 240 { 32, 0x0b }, 241 { 34, 0x12 }, 242 { 37, 0x07 }, 243 { 39, 0xf8 }, 244 { 41, 0x60 }, 245 { 53, 0x10 }, 246 { 54, 0x18 }, 247 { 60, 0x10 }, 248 { 61, 0x04 }, 249 { 62, 0x04 }, 250 { 75, 0xfe }, 251 { 86, 0xfe }, 252 { 88, 0xfe }, 253 { 90, 0x0f }, 254 { 99, 0x00 }, 255 { 102, 0x16 }, 256 { 107, 0x04 } 257}; 258 259static const struct rfprog { 260 uint8_t chan; 261 uint32_t r1, r2, r3, r4; 262} rum_rf5226[] = { 263 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 264 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 265 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 266 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 267 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 268 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 269 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 270 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 271 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 272 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 273 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 274 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 275 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 276 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 277 278 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 279 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 280 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 281 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 282 283 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 284 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 285 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 286 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 287 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 288 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 289 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 290 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 291 292 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 293 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 294 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 295 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 296 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 297 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 298 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 299 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 300 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 301 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 302 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 303 304 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 305 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 306 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 307 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 308 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 309}, rum_rf5225[] = { 310 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 311 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 312 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 313 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 314 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 315 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 316 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 317 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 318 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 319 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 320 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 321 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 322 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 323 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 324 325 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 326 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 327 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 328 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 329 330 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 331 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 332 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 333 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 334 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 335 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 336 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 337 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 338 339 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 340 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 341 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 342 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 343 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 344 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 345 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 346 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 347 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 348 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 349 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 350 351 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 352 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 353 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 354 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 355 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 356}; 357 358static const struct usb2_config rum_config[RUM_N_TRANSFER] = { 359 [RUM_BULK_WR] = { 360 .type = UE_BULK, 361 .endpoint = UE_ADDR_ANY, 362 .direction = UE_DIR_OUT, 363 .mh.bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 364 .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 365 .mh.callback = rum_bulk_write_callback, 366 .mh.timeout = 5000, /* ms */ 367 }, 368 [RUM_BULK_RD] = { 369 .type = UE_BULK, 370 .endpoint = UE_ADDR_ANY, 371 .direction = UE_DIR_IN, 372 .mh.bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 373 .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 374 .mh.callback = rum_bulk_read_callback, 375 }, 376}; 377 378static int 379rum_match(device_t self) 380{ 381 struct usb2_attach_arg *uaa = device_get_ivars(self); 382 383 if (uaa->usb2_mode != USB_MODE_HOST) 384 return (ENXIO); 385 if (uaa->info.bConfigIndex != 0) 386 return (ENXIO); 387 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 388 return (ENXIO); 389 390 return (usb2_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 391} 392 393static int 394rum_attach(device_t self) 395{ 396 struct usb2_attach_arg *uaa = device_get_ivars(self); 397 struct rum_softc *sc = device_get_softc(self); 398 uint8_t iface_index; 399 int error; 400 401 device_set_usb2_desc(self); 402 sc->sc_udev = uaa->device; 403 sc->sc_dev = self; 404 405 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 406 MTX_NETWORK_LOCK, MTX_DEF); 407 408 iface_index = RT2573_IFACE_INDEX; 409 error = usb2_transfer_setup(uaa->device, &iface_index, 410 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 411 if (error) { 412 device_printf(self, "could not allocate USB transfers, " 413 "err=%s\n", usb2_errstr(error)); 414 goto detach; 415 } 416 error = usb2_proc_create(&sc->sc_tq, &sc->sc_mtx, 417 device_get_nameunit(self), USB_PRI_MED); 418 if (error) { 419 device_printf(self, "could not setup config thread!\n"); 420 goto detach; 421 } 422 423 /* fork rest of the attach code */ 424 RUM_LOCK(sc); 425 rum_queue_command(sc, rum_attach_post, 426 &sc->sc_synctask[0].hdr, 427 &sc->sc_synctask[1].hdr); 428 RUM_UNLOCK(sc); 429 return (0); 430 431detach: 432 rum_detach(self); 433 return (ENXIO); /* failure */ 434} 435 436static void 437rum_attach_post(struct usb2_proc_msg *pm) 438{ 439 struct rum_task *task = (struct rum_task *)pm; 440 struct rum_softc *sc = task->sc; 441 struct ifnet *ifp; 442 struct ieee80211com *ic; 443 unsigned int ntries; 444 int error; 445 uint32_t tmp; 446 uint8_t bands; 447 448 /* retrieve RT2573 rev. no */ 449 for (ntries = 0; ntries != 1000; ntries++) { 450 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 451 break; 452 usb2_pause_mtx(&sc->sc_mtx, hz / 1000); 453 } 454 if (ntries == 1000) { 455 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 456 return; 457 } 458 459 /* retrieve MAC address and various other things from EEPROM */ 460 rum_read_eeprom(sc); 461 462 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 463 tmp, rum_get_rf(sc->rf_rev)); 464 465 error = rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 466 if (error != 0) { 467 RUM_UNLOCK(sc); 468 device_printf(sc->sc_dev, "could not load 8051 microcode\n"); 469 return; 470 } 471 RUM_UNLOCK(sc); 472 473 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 474 if (ifp == NULL) { 475 device_printf(sc->sc_dev, "can not if_alloc()\n"); 476 RUM_LOCK(sc); 477 return; 478 } 479 ic = ifp->if_l2com; 480 481 ifp->if_softc = sc; 482 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 483 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 484 ifp->if_init = rum_init; 485 ifp->if_ioctl = rum_ioctl; 486 ifp->if_start = rum_start; 487 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 488 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 489 IFQ_SET_READY(&ifp->if_snd); 490 491 ic->ic_ifp = ifp; 492 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 493 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_bssid); 494 495 /* set device capabilities */ 496 ic->ic_caps = 497 IEEE80211_C_STA /* station mode supported */ 498 | IEEE80211_C_IBSS /* IBSS mode supported */ 499 | IEEE80211_C_MONITOR /* monitor mode supported */ 500 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 501 | IEEE80211_C_TXPMGT /* tx power management */ 502 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 503 | IEEE80211_C_SHSLOT /* short slot time supported */ 504 | IEEE80211_C_BGSCAN /* bg scanning supported */ 505 | IEEE80211_C_WPA /* 802.11i */ 506 ; 507 508 bands = 0; 509 setbit(&bands, IEEE80211_MODE_11B); 510 setbit(&bands, IEEE80211_MODE_11G); 511 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 512 setbit(&bands, IEEE80211_MODE_11A); 513 ieee80211_init_channels(ic, NULL, &bands); 514 515 ieee80211_ifattach(ic); 516 ic->ic_newassoc = rum_newassoc; 517 ic->ic_raw_xmit = rum_raw_xmit; 518 ic->ic_node_alloc = rum_node_alloc; 519 ic->ic_scan_start = rum_scan_start; 520 ic->ic_scan_end = rum_scan_end; 521 ic->ic_set_channel = rum_set_channel; 522 523 ic->ic_vap_create = rum_vap_create; 524 ic->ic_vap_delete = rum_vap_delete; 525 526 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 527 528 bpfattach(ifp, DLT_IEEE802_11_RADIO, 529 sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap)); 530 531 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 532 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 533 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 534 535 sc->sc_txtap_len = sizeof sc->sc_txtap; 536 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 537 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 538 539 if (bootverbose) 540 ieee80211_announce(ic); 541 542 RUM_LOCK(sc); 543} 544 545static int 546rum_detach(device_t self) 547{ 548 struct rum_softc *sc = device_get_softc(self); 549 struct ifnet *ifp = sc->sc_ifp; 550 struct ieee80211com *ic = ifp->if_l2com; 551 552 /* wait for any post attach or other command to complete */ 553 usb2_proc_drain(&sc->sc_tq); 554 555 /* stop all USB transfers */ 556 usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 557 usb2_proc_free(&sc->sc_tq); 558 559 /* free TX list, if any */ 560 RUM_LOCK(sc); 561 rum_unsetup_tx_list(sc); 562 RUM_UNLOCK(sc); 563 564 if (ifp) { 565 bpfdetach(ifp); 566 ieee80211_ifdetach(ic); 567 if_free(ifp); 568 } 569 570 mtx_destroy(&sc->sc_mtx); 571 572 return (0); 573} 574 575static struct ieee80211vap * 576rum_vap_create(struct ieee80211com *ic, 577 const char name[IFNAMSIZ], int unit, int opmode, int flags, 578 const uint8_t bssid[IEEE80211_ADDR_LEN], 579 const uint8_t mac[IEEE80211_ADDR_LEN]) 580{ 581 struct rum_softc *sc = ic->ic_ifp->if_softc; 582 struct rum_vap *rvp; 583 struct ieee80211vap *vap; 584 585 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 586 return NULL; 587 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 588 M_80211_VAP, M_NOWAIT | M_ZERO); 589 if (rvp == NULL) 590 return NULL; 591 vap = &rvp->vap; 592 /* enable s/w bmiss handling for sta mode */ 593 ieee80211_vap_setup(ic, vap, name, unit, opmode, 594 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 595 596 /* override state transition machine */ 597 rvp->newstate = vap->iv_newstate; 598 vap->iv_newstate = rum_newstate; 599 600 rvp->sc = sc; 601 usb2_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 602 ieee80211_amrr_init(&rvp->amrr, vap, 603 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 604 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 605 1000 /* 1 sec */); 606 607 /* complete setup */ 608 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 609 ic->ic_opmode = opmode; 610 return vap; 611} 612 613static void 614rum_vap_delete(struct ieee80211vap *vap) 615{ 616 struct rum_vap *rvp = RUM_VAP(vap); 617 618 usb2_callout_drain(&rvp->amrr_ch); 619 ieee80211_amrr_cleanup(&rvp->amrr); 620 ieee80211_vap_detach(vap); 621 free(rvp, M_80211_VAP); 622} 623 624static void 625rum_tx_free(struct rum_tx_data *data, int txerr) 626{ 627 struct rum_softc *sc = data->sc; 628 629 if (data->m != NULL) { 630 if (data->m->m_flags & M_TXCB) 631 ieee80211_process_callback(data->ni, data->m, 632 txerr ? ETIMEDOUT : 0); 633 m_freem(data->m); 634 data->m = NULL; 635 636 ieee80211_free_node(data->ni); 637 data->ni = NULL; 638 } 639 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 640 sc->tx_nfree++; 641} 642 643static void 644rum_setup_tx_list(struct rum_softc *sc) 645{ 646 struct rum_tx_data *data; 647 int i; 648 649 sc->tx_nfree = 0; 650 STAILQ_INIT(&sc->tx_q); 651 STAILQ_INIT(&sc->tx_free); 652 653 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 654 data = &sc->tx_data[i]; 655 656 data->sc = sc; 657 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 658 sc->tx_nfree++; 659 } 660} 661 662static void 663rum_unsetup_tx_list(struct rum_softc *sc) 664{ 665 struct rum_tx_data *data; 666 int i; 667 668 /* make sure any subsequent use of the queues will fail */ 669 sc->tx_nfree = 0; 670 STAILQ_INIT(&sc->tx_q); 671 STAILQ_INIT(&sc->tx_free); 672 673 /* free up all node references and mbufs */ 674 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 675 data = &sc->tx_data[i]; 676 677 if (data->m != NULL) { 678 m_freem(data->m); 679 data->m = NULL; 680 } 681 if (data->ni != NULL) { 682 ieee80211_free_node(data->ni); 683 data->ni = NULL; 684 } 685 } 686} 687 688static void 689rum_task(struct usb2_proc_msg *pm) 690{ 691 struct rum_task *task = (struct rum_task *)pm; 692 struct rum_softc *sc = task->sc; 693 struct ifnet *ifp = sc->sc_ifp; 694 struct ieee80211com *ic = ifp->if_l2com; 695 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 696 struct rum_vap *rvp = RUM_VAP(vap); 697 const struct ieee80211_txparam *tp; 698 enum ieee80211_state ostate; 699 struct ieee80211_node *ni; 700 uint32_t tmp; 701 702 ostate = vap->iv_state; 703 704 switch (sc->sc_state) { 705 case IEEE80211_S_INIT: 706 if (ostate == IEEE80211_S_RUN) { 707 /* abort TSF synchronization */ 708 tmp = rum_read(sc, RT2573_TXRX_CSR9); 709 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 710 } 711 break; 712 713 case IEEE80211_S_RUN: 714 ni = vap->iv_bss; 715 716 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 717 rum_update_slot(ic->ic_ifp); 718 rum_enable_mrr(sc); 719 rum_set_txpreamble(sc); 720 rum_set_basicrates(sc); 721 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 722 rum_set_bssid(sc, sc->sc_bssid); 723 } 724 725 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 726 vap->iv_opmode == IEEE80211_M_IBSS) 727 rum_prepare_beacon(sc, vap); 728 729 if (vap->iv_opmode != IEEE80211_M_MONITOR) 730 rum_enable_tsf_sync(sc); 731 732 /* enable automatic rate adaptation */ 733 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 734 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 735 rum_amrr_start(sc, ni); 736 break; 737 default: 738 break; 739 } 740 741 RUM_UNLOCK(sc); 742 IEEE80211_LOCK(ic); 743 rvp->newstate(vap, sc->sc_state, sc->sc_arg); 744 if (vap->iv_newstate_cb != NULL) 745 vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg); 746 IEEE80211_UNLOCK(ic); 747 RUM_LOCK(sc); 748} 749 750static int 751rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 752{ 753 struct rum_vap *rvp = RUM_VAP(vap); 754 struct ieee80211com *ic = vap->iv_ic; 755 struct rum_softc *sc = ic->ic_ifp->if_softc; 756 757 DPRINTF("%s -> %s\n", 758 ieee80211_state_name[vap->iv_state], 759 ieee80211_state_name[nstate]); 760 761 RUM_LOCK(sc); 762 usb2_callout_stop(&rvp->amrr_ch); 763 764 /* do it in a process context */ 765 sc->sc_state = nstate; 766 sc->sc_arg = arg; 767 RUM_UNLOCK(sc); 768 769 if (nstate == IEEE80211_S_INIT) { 770 rvp->newstate(vap, nstate, arg); 771 return 0; 772 } else { 773 RUM_LOCK(sc); 774 rum_queue_command(sc, rum_task, &sc->sc_task[0].hdr, 775 &sc->sc_task[1].hdr); 776 RUM_UNLOCK(sc); 777 return EINPROGRESS; 778 } 779} 780 781static void 782rum_bulk_write_callback(struct usb2_xfer *xfer) 783{ 784 struct rum_softc *sc = xfer->priv_sc; 785 struct ifnet *ifp = sc->sc_ifp; 786 struct ieee80211com *ic = ifp->if_l2com; 787 struct ieee80211_channel *c = ic->ic_curchan; 788 struct rum_tx_data *data; 789 struct mbuf *m; 790 unsigned int len; 791 792 switch (USB_GET_STATE(xfer)) { 793 case USB_ST_TRANSFERRED: 794 DPRINTFN(11, "transfer complete, %d bytes\n", xfer->actlen); 795 796 /* free resources */ 797 data = xfer->priv_fifo; 798 rum_tx_free(data, 0); 799 xfer->priv_fifo = NULL; 800 801 ifp->if_opackets++; 802 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 803 804 /* FALLTHROUGH */ 805 case USB_ST_SETUP: 806tr_setup: 807 data = STAILQ_FIRST(&sc->tx_q); 808 if (data) { 809 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 810 m = data->m; 811 812 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 813 DPRINTFN(0, "data overflow, %u bytes\n", 814 m->m_pkthdr.len); 815 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 816 } 817 usb2_copy_in(xfer->frbuffers, 0, &data->desc, 818 RT2573_TX_DESC_SIZE); 819 usb2_m_copy_in(xfer->frbuffers, RT2573_TX_DESC_SIZE, m, 820 0, m->m_pkthdr.len); 821 822 if (bpf_peers_present(ifp->if_bpf)) { 823 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 824 825 tap->wt_flags = 0; 826 tap->wt_rate = data->rate; 827 tap->wt_chan_freq = htole16(c->ic_freq); 828 tap->wt_chan_flags = htole16(c->ic_flags); 829 tap->wt_antenna = sc->tx_ant; 830 831 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m); 832 } 833 834 /* align end on a 4-bytes boundary */ 835 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 836 if ((len % 64) == 0) 837 len += 4; 838 839 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 840 m->m_pkthdr.len, len); 841 842 xfer->frlengths[0] = len; 843 xfer->priv_fifo = data; 844 845 usb2_start_hardware(xfer); 846 } 847 break; 848 849 default: /* Error */ 850 DPRINTFN(11, "transfer error, %s\n", 851 usb2_errstr(xfer->error)); 852 853 ifp->if_oerrors++; 854 data = xfer->priv_fifo; 855 if (data != NULL) { 856 rum_tx_free(data, xfer->error); 857 xfer->priv_fifo = NULL; 858 } 859 860 if (xfer->error == USB_ERR_STALLED) { 861 /* try to clear stall first */ 862 xfer->flags.stall_pipe = 1; 863 goto tr_setup; 864 } 865 if (xfer->error == USB_ERR_TIMEOUT) 866 device_printf(sc->sc_dev, "device timeout\n"); 867 break; 868 } 869} 870 871static void 872rum_bulk_read_callback(struct usb2_xfer *xfer) 873{ 874 struct rum_softc *sc = xfer->priv_sc; 875 struct ifnet *ifp = sc->sc_ifp; 876 struct ieee80211com *ic = ifp->if_l2com; 877 struct ieee80211_node *ni; 878 struct mbuf *m = NULL; 879 uint32_t flags; 880 uint8_t rssi = 0; 881 unsigned int len; 882 883 switch (USB_GET_STATE(xfer)) { 884 case USB_ST_TRANSFERRED: 885 886 DPRINTFN(15, "rx done, actlen=%d\n", xfer->actlen); 887 888 len = xfer->actlen; 889 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 890 DPRINTF("%s: xfer too short %d\n", 891 device_get_nameunit(sc->sc_dev), len); 892 ifp->if_ierrors++; 893 goto tr_setup; 894 } 895 896 len -= RT2573_RX_DESC_SIZE; 897 usb2_copy_out(xfer->frbuffers, 0, &sc->sc_rx_desc, 898 RT2573_RX_DESC_SIZE); 899 900 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 901 flags = le32toh(sc->sc_rx_desc.flags); 902 if (flags & RT2573_RX_CRC_ERROR) { 903 /* 904 * This should not happen since we did not 905 * request to receive those frames when we 906 * filled RUM_TXRX_CSR2: 907 */ 908 DPRINTFN(5, "PHY or CRC error\n"); 909 ifp->if_ierrors++; 910 goto tr_setup; 911 } 912 913 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 914 if (m == NULL) { 915 DPRINTF("could not allocate mbuf\n"); 916 ifp->if_ierrors++; 917 goto tr_setup; 918 } 919 usb2_copy_out(xfer->frbuffers, RT2573_RX_DESC_SIZE, 920 mtod(m, uint8_t *), len); 921 922 /* finalize mbuf */ 923 m->m_pkthdr.rcvif = ifp; 924 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 925 926 if (bpf_peers_present(ifp->if_bpf)) { 927 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 928 929 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 930 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 931 (flags & RT2573_RX_OFDM) ? 932 IEEE80211_T_OFDM : IEEE80211_T_CCK); 933 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 934 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 935 tap->wr_antenna = sc->rx_ant; 936 tap->wr_antsignal = rssi; 937 938 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 939 } 940 /* FALLTHROUGH */ 941 case USB_ST_SETUP: 942tr_setup: 943 xfer->frlengths[0] = xfer->max_data_length; 944 usb2_start_hardware(xfer); 945 946 /* 947 * At the end of a USB callback it is always safe to unlock 948 * the private mutex of a device! That is why we do the 949 * "ieee80211_input" here, and not some lines up! 950 */ 951 if (m) { 952 RUM_UNLOCK(sc); 953 ni = ieee80211_find_rxnode(ic, 954 mtod(m, struct ieee80211_frame_min *)); 955 if (ni != NULL) { 956 (void) ieee80211_input(ni, m, rssi, 957 RT2573_NOISE_FLOOR, 0); 958 ieee80211_free_node(ni); 959 } else 960 (void) ieee80211_input_all(ic, m, rssi, 961 RT2573_NOISE_FLOOR, 0); 962 RUM_LOCK(sc); 963 } 964 return; 965 966 default: /* Error */ 967 if (xfer->error != USB_ERR_CANCELLED) { 968 /* try to clear stall first */ 969 xfer->flags.stall_pipe = 1; 970 goto tr_setup; 971 } 972 return; 973 } 974} 975 976static uint8_t 977rum_plcp_signal(int rate) 978{ 979 switch (rate) { 980 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 981 case 12: return 0xb; 982 case 18: return 0xf; 983 case 24: return 0xa; 984 case 36: return 0xe; 985 case 48: return 0x9; 986 case 72: return 0xd; 987 case 96: return 0x8; 988 case 108: return 0xc; 989 990 /* CCK rates (NB: not IEEE std, device-specific) */ 991 case 2: return 0x0; 992 case 4: return 0x1; 993 case 11: return 0x2; 994 case 22: return 0x3; 995 } 996 return 0xff; /* XXX unsupported/unknown rate */ 997} 998 999static void 1000rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1001 uint32_t flags, uint16_t xflags, int len, int rate) 1002{ 1003 struct ifnet *ifp = sc->sc_ifp; 1004 struct ieee80211com *ic = ifp->if_l2com; 1005 uint16_t plcp_length; 1006 int remainder; 1007 1008 desc->flags = htole32(flags); 1009 desc->flags |= htole32(RT2573_TX_VALID); 1010 desc->flags |= htole32(len << 16); 1011 1012 desc->xflags = htole16(xflags); 1013 1014 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1015 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1016 1017 /* setup PLCP fields */ 1018 desc->plcp_signal = rum_plcp_signal(rate); 1019 desc->plcp_service = 4; 1020 1021 len += IEEE80211_CRC_LEN; 1022 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) { 1023 desc->flags |= htole32(RT2573_TX_OFDM); 1024 1025 plcp_length = len & 0xfff; 1026 desc->plcp_length_hi = plcp_length >> 6; 1027 desc->plcp_length_lo = plcp_length & 0x3f; 1028 } else { 1029 plcp_length = (16 * len + rate - 1) / rate; 1030 if (rate == 22) { 1031 remainder = (16 * len) % 22; 1032 if (remainder != 0 && remainder < 7) 1033 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1034 } 1035 desc->plcp_length_hi = plcp_length >> 8; 1036 desc->plcp_length_lo = plcp_length & 0xff; 1037 1038 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1039 desc->plcp_signal |= 0x08; 1040 } 1041} 1042 1043#define RUM_TX_TIMEOUT 5000 1044 1045static int 1046rum_sendprot(struct rum_softc *sc, 1047 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1048{ 1049 struct ieee80211com *ic = ni->ni_ic; 1050 const struct ieee80211_frame *wh; 1051 struct rum_tx_data *data; 1052 struct mbuf *mprot; 1053 int protrate, ackrate, pktlen, flags, isshort; 1054 uint16_t dur; 1055 1056 RUM_LOCK_ASSERT(sc, MA_OWNED); 1057 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1058 ("protection %d", prot)); 1059 1060 wh = mtod(m, const struct ieee80211_frame *); 1061 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1062 1063 protrate = ieee80211_ctl_rate(sc->sc_rates, rate); 1064 ackrate = ieee80211_ack_rate(sc->sc_rates, rate); 1065 1066 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1067 dur = ieee80211_compute_duration(sc->sc_rates, pktlen, rate, isshort); 1068 + ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1069 flags = RT2573_TX_MORE_FRAG; 1070 if (prot == IEEE80211_PROT_RTSCTS) { 1071 /* NB: CTS is the same size as an ACK */ 1072 dur += ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1073 flags |= RT2573_TX_NEED_ACK; 1074 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1075 } else { 1076 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1077 } 1078 if (mprot == NULL) { 1079 /* XXX stat + msg */ 1080 return ENOBUFS; 1081 } 1082 data = STAILQ_FIRST(&sc->tx_free); 1083 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1084 sc->tx_nfree--; 1085 1086 data->m = mprot; 1087 data->ni = ieee80211_ref_node(ni); 1088 data->rate = protrate; 1089 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1090 1091 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1092 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1093 1094 return 0; 1095} 1096 1097static int 1098rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1099{ 1100 struct ieee80211vap *vap = ni->ni_vap; 1101 struct ifnet *ifp = sc->sc_ifp; 1102 struct ieee80211com *ic = ifp->if_l2com; 1103 struct rum_tx_data *data; 1104 struct ieee80211_frame *wh; 1105 const struct ieee80211_txparam *tp; 1106 struct ieee80211_key *k; 1107 uint32_t flags = 0; 1108 uint16_t dur; 1109 1110 RUM_LOCK_ASSERT(sc, MA_OWNED); 1111 1112 data = STAILQ_FIRST(&sc->tx_free); 1113 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1114 sc->tx_nfree--; 1115 1116 wh = mtod(m0, struct ieee80211_frame *); 1117 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1118 k = ieee80211_crypto_encap(ni, m0); 1119 if (k == NULL) { 1120 m_freem(m0); 1121 return ENOBUFS; 1122 } 1123 wh = mtod(m0, struct ieee80211_frame *); 1124 } 1125 1126 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1127 1128 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1129 flags |= RT2573_TX_NEED_ACK; 1130 1131 dur = ieee80211_ack_duration(sc->sc_rates, tp->mgmtrate, 1132 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1133 *(uint16_t *)wh->i_dur = htole16(dur); 1134 1135 /* tell hardware to add timestamp for probe responses */ 1136 if ((wh->i_fc[0] & 1137 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1138 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1139 flags |= RT2573_TX_TIMESTAMP; 1140 } 1141 1142 data->m = m0; 1143 data->ni = ni; 1144 data->rate = tp->mgmtrate; 1145 1146 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1147 1148 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1149 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1150 1151 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1152 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1153 1154 return 0; 1155} 1156 1157static int 1158rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1159 const struct ieee80211_bpf_params *params) 1160{ 1161 struct rum_tx_data *data; 1162 uint32_t flags; 1163 int rate, error; 1164 1165 RUM_LOCK_ASSERT(sc, MA_OWNED); 1166 KASSERT(params != NULL, ("no raw xmit params")); 1167 1168 data = STAILQ_FIRST(&sc->tx_free); 1169 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1170 sc->tx_nfree--; 1171 1172 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1173 /* XXX validate */ 1174 if (rate == 0) { 1175 m_freem(m0); 1176 return EINVAL; 1177 } 1178 flags = 0; 1179 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1180 flags |= RT2573_TX_NEED_ACK; 1181 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1182 error = rum_sendprot(sc, m0, ni, 1183 params->ibp_flags & IEEE80211_BPF_RTS ? 1184 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1185 rate); 1186 if (error) { 1187 m_freem(m0); 1188 return error; 1189 } 1190 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1191 } 1192 1193 data->m = m0; 1194 data->ni = ni; 1195 data->rate = rate; 1196 1197 /* XXX need to setup descriptor ourself */ 1198 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1199 1200 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1201 m0->m_pkthdr.len, rate); 1202 1203 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1204 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1205 1206 return 0; 1207} 1208 1209static int 1210rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1211{ 1212 struct ieee80211vap *vap = ni->ni_vap; 1213 struct ifnet *ifp = sc->sc_ifp; 1214 struct ieee80211com *ic = ifp->if_l2com; 1215 struct rum_tx_data *data; 1216 struct ieee80211_frame *wh; 1217 const struct ieee80211_txparam *tp; 1218 struct ieee80211_key *k; 1219 uint32_t flags = 0; 1220 uint16_t dur; 1221 int error, rate; 1222 1223 RUM_LOCK_ASSERT(sc, MA_OWNED); 1224 1225 wh = mtod(m0, struct ieee80211_frame *); 1226 1227 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1228 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1229 rate = tp->mcastrate; 1230 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1231 rate = tp->ucastrate; 1232 else 1233 rate = ni->ni_txrate; 1234 1235 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1236 k = ieee80211_crypto_encap(ni, m0); 1237 if (k == NULL) { 1238 m_freem(m0); 1239 return ENOBUFS; 1240 } 1241 1242 /* packet header may have moved, reset our local pointer */ 1243 wh = mtod(m0, struct ieee80211_frame *); 1244 } 1245 1246 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1247 int prot = IEEE80211_PROT_NONE; 1248 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1249 prot = IEEE80211_PROT_RTSCTS; 1250 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1251 ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) 1252 prot = ic->ic_protmode; 1253 if (prot != IEEE80211_PROT_NONE) { 1254 error = rum_sendprot(sc, m0, ni, prot, rate); 1255 if (error) { 1256 m_freem(m0); 1257 return error; 1258 } 1259 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1260 } 1261 } 1262 1263 data = STAILQ_FIRST(&sc->tx_free); 1264 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1265 sc->tx_nfree--; 1266 1267 data->m = m0; 1268 data->ni = ni; 1269 data->rate = rate; 1270 1271 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1272 flags |= RT2573_TX_NEED_ACK; 1273 flags |= RT2573_TX_MORE_FRAG; 1274 1275 dur = ieee80211_ack_duration(sc->sc_rates, rate, 1276 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1277 *(uint16_t *)wh->i_dur = htole16(dur); 1278 } 1279 1280 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1281 1282 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1283 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1284 1285 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1286 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1287 1288 return 0; 1289} 1290 1291static void 1292rum_start(struct ifnet *ifp) 1293{ 1294 struct rum_softc *sc = ifp->if_softc; 1295 struct ieee80211_node *ni; 1296 struct mbuf *m; 1297 1298 RUM_LOCK(sc); 1299 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1300 RUM_UNLOCK(sc); 1301 return; 1302 } 1303 for (;;) { 1304 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1305 if (m == NULL) 1306 break; 1307 if (sc->tx_nfree == 0) { 1308 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1309 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1310 break; 1311 } 1312 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1313 m = ieee80211_encap(ni, m); 1314 if (m == NULL) { 1315 ieee80211_free_node(ni); 1316 continue; 1317 } 1318 if (rum_tx_data(sc, m, ni) != 0) { 1319 ieee80211_free_node(ni); 1320 ifp->if_oerrors++; 1321 break; 1322 } 1323 } 1324 RUM_UNLOCK(sc); 1325} 1326 1327static int 1328rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1329{ 1330 struct rum_softc *sc = ifp->if_softc; 1331 struct ieee80211com *ic = ifp->if_l2com; 1332 struct ifreq *ifr = (struct ifreq *) data; 1333 int error = 0, startall = 0; 1334 1335 switch (cmd) { 1336 case SIOCSIFFLAGS: 1337 RUM_LOCK(sc); 1338 if (ifp->if_flags & IFF_UP) { 1339 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1340 rum_queue_command(sc, rum_init_task, 1341 &sc->sc_synctask[0].hdr, 1342 &sc->sc_synctask[1].hdr); 1343 startall = 1; 1344 } else 1345 rum_queue_command(sc, rum_promisctask, 1346 &sc->sc_promisctask[0].hdr, 1347 &sc->sc_promisctask[1].hdr); 1348 } else { 1349 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1350 rum_queue_command(sc, rum_stop_task, 1351 &sc->sc_synctask[0].hdr, 1352 &sc->sc_synctask[1].hdr); 1353 } 1354 } 1355 RUM_UNLOCK(sc); 1356 if (startall) 1357 ieee80211_start_all(ic); 1358 break; 1359 case SIOCGIFMEDIA: 1360 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1361 break; 1362 case SIOCGIFADDR: 1363 error = ether_ioctl(ifp, cmd, data); 1364 break; 1365 default: 1366 error = EINVAL; 1367 break; 1368 } 1369 return error; 1370} 1371 1372static void 1373rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1374{ 1375 struct usb2_device_request req; 1376 usb2_error_t error; 1377 1378 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1379 req.bRequest = RT2573_READ_EEPROM; 1380 USETW(req.wValue, 0); 1381 USETW(req.wIndex, addr); 1382 USETW(req.wLength, len); 1383 1384 error = rum_do_request(sc, &req, buf); 1385 if (error != 0) { 1386 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1387 usb2_errstr(error)); 1388 } 1389} 1390 1391static uint32_t 1392rum_read(struct rum_softc *sc, uint16_t reg) 1393{ 1394 uint32_t val; 1395 1396 rum_read_multi(sc, reg, &val, sizeof val); 1397 1398 return le32toh(val); 1399} 1400 1401static void 1402rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1403{ 1404 struct usb2_device_request req; 1405 usb2_error_t error; 1406 1407 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1408 req.bRequest = RT2573_READ_MULTI_MAC; 1409 USETW(req.wValue, 0); 1410 USETW(req.wIndex, reg); 1411 USETW(req.wLength, len); 1412 1413 error = rum_do_request(sc, &req, buf); 1414 if (error != 0) { 1415 device_printf(sc->sc_dev, 1416 "could not multi read MAC register: %s\n", 1417 usb2_errstr(error)); 1418 } 1419} 1420 1421static void 1422rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1423{ 1424 uint32_t tmp = htole32(val); 1425 1426 rum_write_multi(sc, reg, &tmp, sizeof tmp); 1427} 1428 1429static void 1430rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1431{ 1432 struct usb2_device_request req; 1433 usb2_error_t error; 1434 1435 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1436 req.bRequest = RT2573_WRITE_MULTI_MAC; 1437 USETW(req.wValue, 0); 1438 USETW(req.wIndex, reg); 1439 USETW(req.wLength, len); 1440 1441 error = rum_do_request(sc, &req, buf); 1442 if (error != 0) { 1443 device_printf(sc->sc_dev, 1444 "could not multi write MAC register: %s\n", 1445 usb2_errstr(error)); 1446 } 1447} 1448 1449static void 1450rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1451{ 1452 uint32_t tmp; 1453 int ntries; 1454 1455 for (ntries = 0; ntries < 5; ntries++) { 1456 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1457 break; 1458 } 1459 if (ntries == 5) { 1460 device_printf(sc->sc_dev, "could not write to BBP\n"); 1461 return; 1462 } 1463 1464 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1465 rum_write(sc, RT2573_PHY_CSR3, tmp); 1466} 1467 1468static uint8_t 1469rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1470{ 1471 uint32_t val; 1472 int ntries; 1473 1474 for (ntries = 0; ntries < 5; ntries++) { 1475 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1476 break; 1477 } 1478 if (ntries == 5) { 1479 device_printf(sc->sc_dev, "could not read BBP\n"); 1480 return 0; 1481 } 1482 1483 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1484 rum_write(sc, RT2573_PHY_CSR3, val); 1485 1486 for (ntries = 0; ntries < 100; ntries++) { 1487 val = rum_read(sc, RT2573_PHY_CSR3); 1488 if (!(val & RT2573_BBP_BUSY)) 1489 return val & 0xff; 1490 DELAY(1); 1491 } 1492 1493 device_printf(sc->sc_dev, "could not read BBP\n"); 1494 return 0; 1495} 1496 1497static void 1498rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1499{ 1500 uint32_t tmp; 1501 int ntries; 1502 1503 for (ntries = 0; ntries < 5; ntries++) { 1504 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1505 break; 1506 } 1507 if (ntries == 5) { 1508 device_printf(sc->sc_dev, "could not write to RF\n"); 1509 return; 1510 } 1511 1512 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1513 (reg & 3); 1514 rum_write(sc, RT2573_PHY_CSR4, tmp); 1515 1516 /* remember last written value in sc */ 1517 sc->rf_regs[reg] = val; 1518 1519 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1520} 1521 1522static void 1523rum_select_antenna(struct rum_softc *sc) 1524{ 1525 uint8_t bbp4, bbp77; 1526 uint32_t tmp; 1527 1528 bbp4 = rum_bbp_read(sc, 4); 1529 bbp77 = rum_bbp_read(sc, 77); 1530 1531 /* TBD */ 1532 1533 /* make sure Rx is disabled before switching antenna */ 1534 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1535 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1536 1537 rum_bbp_write(sc, 4, bbp4); 1538 rum_bbp_write(sc, 77, bbp77); 1539 1540 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1541} 1542 1543/* 1544 * Enable multi-rate retries for frames sent at OFDM rates. 1545 * In 802.11b/g mode, allow fallback to CCK rates. 1546 */ 1547static void 1548rum_enable_mrr(struct rum_softc *sc) 1549{ 1550 struct ifnet *ifp = sc->sc_ifp; 1551 struct ieee80211com *ic = ifp->if_l2com; 1552 uint32_t tmp; 1553 1554 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1555 1556 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1557 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1558 tmp |= RT2573_MRR_CCK_FALLBACK; 1559 tmp |= RT2573_MRR_ENABLED; 1560 1561 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1562} 1563 1564static void 1565rum_set_txpreamble(struct rum_softc *sc) 1566{ 1567 struct ifnet *ifp = sc->sc_ifp; 1568 struct ieee80211com *ic = ifp->if_l2com; 1569 uint32_t tmp; 1570 1571 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1572 1573 tmp &= ~RT2573_SHORT_PREAMBLE; 1574 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1575 tmp |= RT2573_SHORT_PREAMBLE; 1576 1577 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1578} 1579 1580static void 1581rum_set_basicrates(struct rum_softc *sc) 1582{ 1583 struct ifnet *ifp = sc->sc_ifp; 1584 struct ieee80211com *ic = ifp->if_l2com; 1585 1586 /* update basic rate set */ 1587 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1588 /* 11b basic rates: 1, 2Mbps */ 1589 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1590 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1591 /* 11a basic rates: 6, 12, 24Mbps */ 1592 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1593 } else { 1594 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1595 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1596 } 1597} 1598 1599/* 1600 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1601 * driver. 1602 */ 1603static void 1604rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1605{ 1606 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1607 uint32_t tmp; 1608 1609 /* update all BBP registers that depend on the band */ 1610 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1611 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1612 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1613 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1614 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1615 } 1616 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1617 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1618 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1619 } 1620 1621 sc->bbp17 = bbp17; 1622 rum_bbp_write(sc, 17, bbp17); 1623 rum_bbp_write(sc, 96, bbp96); 1624 rum_bbp_write(sc, 104, bbp104); 1625 1626 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1627 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1628 rum_bbp_write(sc, 75, 0x80); 1629 rum_bbp_write(sc, 86, 0x80); 1630 rum_bbp_write(sc, 88, 0x80); 1631 } 1632 1633 rum_bbp_write(sc, 35, bbp35); 1634 rum_bbp_write(sc, 97, bbp97); 1635 rum_bbp_write(sc, 98, bbp98); 1636 1637 tmp = rum_read(sc, RT2573_PHY_CSR0); 1638 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1639 if (IEEE80211_IS_CHAN_2GHZ(c)) 1640 tmp |= RT2573_PA_PE_2GHZ; 1641 else 1642 tmp |= RT2573_PA_PE_5GHZ; 1643 rum_write(sc, RT2573_PHY_CSR0, tmp); 1644} 1645 1646static void 1647rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1648{ 1649 struct ifnet *ifp = sc->sc_ifp; 1650 struct ieee80211com *ic = ifp->if_l2com; 1651 const struct rfprog *rfprog; 1652 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1653 int8_t power; 1654 u_int i, chan; 1655 1656 chan = ieee80211_chan2ieee(ic, c); 1657 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1658 return; 1659 1660 /* select the appropriate RF settings based on what EEPROM says */ 1661 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1662 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1663 1664 /* find the settings for this channel (we know it exists) */ 1665 for (i = 0; rfprog[i].chan != chan; i++); 1666 1667 power = sc->txpow[i]; 1668 if (power < 0) { 1669 bbp94 += power; 1670 power = 0; 1671 } else if (power > 31) { 1672 bbp94 += power - 31; 1673 power = 31; 1674 } 1675 1676 /* 1677 * If we are switching from the 2GHz band to the 5GHz band or 1678 * vice-versa, BBP registers need to be reprogrammed. 1679 */ 1680 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1681 rum_select_band(sc, c); 1682 rum_select_antenna(sc); 1683 } 1684 ic->ic_curchan = c; 1685 1686 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1687 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1688 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1689 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1690 1691 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1692 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1693 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1694 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1695 1696 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1697 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1698 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1699 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1700 1701 DELAY(10); 1702 1703 /* enable smart mode for MIMO-capable RFs */ 1704 bbp3 = rum_bbp_read(sc, 3); 1705 1706 bbp3 &= ~RT2573_SMART_MODE; 1707 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1708 bbp3 |= RT2573_SMART_MODE; 1709 1710 rum_bbp_write(sc, 3, bbp3); 1711 1712 if (bbp94 != RT2573_BBPR94_DEFAULT) 1713 rum_bbp_write(sc, 94, bbp94); 1714} 1715 1716/* 1717 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1718 * and HostAP operating modes. 1719 */ 1720static void 1721rum_enable_tsf_sync(struct rum_softc *sc) 1722{ 1723 struct ifnet *ifp = sc->sc_ifp; 1724 struct ieee80211com *ic = ifp->if_l2com; 1725 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1726 uint32_t tmp; 1727 1728 if (vap->iv_opmode != IEEE80211_M_STA) { 1729 /* 1730 * Change default 16ms TBTT adjustment to 8ms. 1731 * Must be done before enabling beacon generation. 1732 */ 1733 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1734 } 1735 1736 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1737 1738 /* set beacon interval (in 1/16ms unit) */ 1739 tmp |= vap->iv_bss->ni_intval * 16; 1740 1741 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1742 if (vap->iv_opmode == IEEE80211_M_STA) 1743 tmp |= RT2573_TSF_MODE(1); 1744 else 1745 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1746 1747 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1748} 1749 1750static void 1751rum_update_slot(struct ifnet *ifp) 1752{ 1753 struct rum_softc *sc = ifp->if_softc; 1754 struct ieee80211com *ic = ifp->if_l2com; 1755 uint8_t slottime; 1756 uint32_t tmp; 1757 1758 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1759 1760 tmp = rum_read(sc, RT2573_MAC_CSR9); 1761 tmp = (tmp & ~0xff) | slottime; 1762 rum_write(sc, RT2573_MAC_CSR9, tmp); 1763 1764 DPRINTF("setting slot time to %uus\n", slottime); 1765} 1766 1767static void 1768rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1769{ 1770 uint32_t tmp; 1771 1772 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1773 rum_write(sc, RT2573_MAC_CSR4, tmp); 1774 1775 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1776 rum_write(sc, RT2573_MAC_CSR5, tmp); 1777} 1778 1779static void 1780rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1781{ 1782 uint32_t tmp; 1783 1784 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1785 rum_write(sc, RT2573_MAC_CSR2, tmp); 1786 1787 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1788 rum_write(sc, RT2573_MAC_CSR3, tmp); 1789} 1790 1791static void 1792rum_promisctask(struct usb2_proc_msg *pm) 1793{ 1794 struct rum_task *task = (struct rum_task *)pm; 1795 struct rum_softc *sc = task->sc; 1796 struct ifnet *ifp = sc->sc_ifp; 1797 uint32_t tmp; 1798 1799 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1800 1801 tmp &= ~RT2573_DROP_NOT_TO_ME; 1802 if (!(ifp->if_flags & IFF_PROMISC)) 1803 tmp |= RT2573_DROP_NOT_TO_ME; 1804 1805 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1806 1807 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1808 "entering" : "leaving"); 1809} 1810 1811static const char * 1812rum_get_rf(int rev) 1813{ 1814 switch (rev) { 1815 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1816 case RT2573_RF_2528: return "RT2528"; 1817 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1818 case RT2573_RF_5226: return "RT5226"; 1819 default: return "unknown"; 1820 } 1821} 1822 1823static void 1824rum_read_eeprom(struct rum_softc *sc) 1825{ 1826 uint16_t val; 1827#ifdef RUM_DEBUG 1828 int i; 1829#endif 1830 1831 /* read MAC address */ 1832 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1833 1834 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1835 val = le16toh(val); 1836 sc->rf_rev = (val >> 11) & 0x1f; 1837 sc->hw_radio = (val >> 10) & 0x1; 1838 sc->rx_ant = (val >> 4) & 0x3; 1839 sc->tx_ant = (val >> 2) & 0x3; 1840 sc->nb_ant = val & 0x3; 1841 1842 DPRINTF("RF revision=%d\n", sc->rf_rev); 1843 1844 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1845 val = le16toh(val); 1846 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1847 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1848 1849 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1850 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1851 1852 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1853 val = le16toh(val); 1854 if ((val & 0xff) != 0xff) 1855 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1856 1857 /* Only [-10, 10] is valid */ 1858 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1859 sc->rssi_2ghz_corr = 0; 1860 1861 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1862 val = le16toh(val); 1863 if ((val & 0xff) != 0xff) 1864 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1865 1866 /* Only [-10, 10] is valid */ 1867 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1868 sc->rssi_5ghz_corr = 0; 1869 1870 if (sc->ext_2ghz_lna) 1871 sc->rssi_2ghz_corr -= 14; 1872 if (sc->ext_5ghz_lna) 1873 sc->rssi_5ghz_corr -= 14; 1874 1875 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1876 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1877 1878 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1879 val = le16toh(val); 1880 if ((val & 0xff) != 0xff) 1881 sc->rffreq = val & 0xff; 1882 1883 DPRINTF("RF freq=%d\n", sc->rffreq); 1884 1885 /* read Tx power for all a/b/g channels */ 1886 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1887 /* XXX default Tx power for 802.11a channels */ 1888 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1889#ifdef RUM_DEBUG 1890 for (i = 0; i < 14; i++) 1891 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1892#endif 1893 1894 /* read default values for BBP registers */ 1895 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1896#ifdef RUM_DEBUG 1897 for (i = 0; i < 14; i++) { 1898 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1899 continue; 1900 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1901 sc->bbp_prom[i].val); 1902 } 1903#endif 1904} 1905 1906static int 1907rum_bbp_init(struct rum_softc *sc) 1908{ 1909#define N(a) (sizeof (a) / sizeof ((a)[0])) 1910 int i, ntries; 1911 1912 /* wait for BBP to be ready */ 1913 for (ntries = 0; ntries < 100; ntries++) { 1914 const uint8_t val = rum_bbp_read(sc, 0); 1915 if (val != 0 && val != 0xff) 1916 break; 1917 DELAY(1000); 1918 } 1919 if (ntries == 100) { 1920 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1921 return EIO; 1922 } 1923 1924 /* initialize BBP registers to default values */ 1925 for (i = 0; i < N(rum_def_bbp); i++) 1926 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1927 1928 /* write vendor-specific BBP values (from EEPROM) */ 1929 for (i = 0; i < 16; i++) { 1930 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1931 continue; 1932 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1933 } 1934 1935 return 0; 1936#undef N 1937} 1938 1939static void 1940rum_init_task(struct usb2_proc_msg *pm) 1941{ 1942#define N(a) (sizeof (a) / sizeof ((a)[0])) 1943 struct rum_task *task = (struct rum_task *)pm; 1944 struct rum_softc *sc = task->sc; 1945 struct ifnet *ifp = sc->sc_ifp; 1946 struct ieee80211com *ic = ifp->if_l2com; 1947 uint32_t tmp; 1948 usb2_error_t error; 1949 int i, ntries; 1950 1951 RUM_LOCK_ASSERT(sc, MA_OWNED); 1952 1953 rum_stop_task(pm); 1954 1955 /* initialize MAC registers to default values */ 1956 for (i = 0; i < N(rum_def_mac); i++) 1957 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1958 1959 /* set host ready */ 1960 rum_write(sc, RT2573_MAC_CSR1, 3); 1961 rum_write(sc, RT2573_MAC_CSR1, 0); 1962 1963 /* wait for BBP/RF to wakeup */ 1964 for (ntries = 0; ntries < 1000; ntries++) { 1965 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1966 break; 1967 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1968 DELAY(1000); 1969 } 1970 if (ntries == 1000) { 1971 device_printf(sc->sc_dev, 1972 "timeout waiting for BBP/RF to wakeup\n"); 1973 goto fail; 1974 } 1975 1976 if ((error = rum_bbp_init(sc)) != 0) 1977 goto fail; 1978 1979 /* select default channel */ 1980 rum_select_band(sc, ic->ic_curchan); 1981 rum_select_antenna(sc); 1982 rum_set_chan(sc, ic->ic_curchan); 1983 1984 /* clear STA registers */ 1985 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1986 1987 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 1988 rum_set_macaddr(sc, ic->ic_myaddr); 1989 1990 /* initialize ASIC */ 1991 rum_write(sc, RT2573_MAC_CSR1, 4); 1992 1993 /* 1994 * Allocate Tx and Rx xfer queues. 1995 */ 1996 rum_setup_tx_list(sc); 1997 1998 /* update Rx filter */ 1999 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2000 2001 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2002 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2003 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2004 RT2573_DROP_ACKCTS; 2005 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2006 tmp |= RT2573_DROP_TODS; 2007 if (!(ifp->if_flags & IFF_PROMISC)) 2008 tmp |= RT2573_DROP_NOT_TO_ME; 2009 } 2010 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2011 2012 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2013 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2014 usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2015 return; 2016 2017fail: rum_stop_task(pm); 2018#undef N 2019} 2020 2021static void 2022rum_init(void *priv) 2023{ 2024 struct rum_softc *sc = priv; 2025 struct ifnet *ifp = sc->sc_ifp; 2026 struct ieee80211com *ic = ifp->if_l2com; 2027 2028 RUM_LOCK(sc); 2029 rum_queue_command(sc, rum_init_task, 2030 &sc->sc_synctask[0].hdr, 2031 &sc->sc_synctask[1].hdr); 2032 RUM_UNLOCK(sc); 2033 2034 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2035 ieee80211_start_all(ic); /* start all vap's */ 2036} 2037 2038static void 2039rum_stop_task(struct usb2_proc_msg *pm) 2040{ 2041 struct rum_task *task = (struct rum_task *)pm; 2042 struct rum_softc *sc = task->sc; 2043 struct ifnet *ifp = sc->sc_ifp; 2044 uint32_t tmp; 2045 2046 RUM_LOCK_ASSERT(sc, MA_OWNED); 2047 2048 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2049 2050 RUM_UNLOCK(sc); 2051 2052 /* 2053 * Drain the USB transfers, if not already drained: 2054 */ 2055 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2056 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2057 2058 RUM_LOCK(sc); 2059 2060 rum_unsetup_tx_list(sc); 2061 2062 /* disable Rx */ 2063 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2064 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2065 2066 /* reset ASIC */ 2067 rum_write(sc, RT2573_MAC_CSR1, 3); 2068 rum_write(sc, RT2573_MAC_CSR1, 0); 2069} 2070 2071static int 2072rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size) 2073{ 2074 struct usb2_device_request req; 2075 uint16_t reg = RT2573_MCU_CODE_BASE; 2076 usb2_error_t error; 2077 2078 /* copy firmware image into NIC */ 2079 for (; size >= 4; reg += 4, ucode += 4, size -= 4) 2080 rum_write(sc, reg, UGETDW(ucode)); 2081 2082 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2083 req.bRequest = RT2573_MCU_CNTL; 2084 USETW(req.wValue, RT2573_MCU_RUN); 2085 USETW(req.wIndex, 0); 2086 USETW(req.wLength, 0); 2087 2088 error = rum_do_request(sc, &req, NULL); 2089 if (error != 0) { 2090 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2091 usb2_errstr(error)); 2092 } 2093 return error; 2094} 2095 2096static int 2097rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2098{ 2099 struct ieee80211com *ic = vap->iv_ic; 2100 const struct ieee80211_txparam *tp; 2101 struct rum_tx_desc desc; 2102 struct mbuf *m0; 2103 2104 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2105 if (m0 == NULL) { 2106 return ENOBUFS; 2107 } 2108 2109 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2110 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2111 m0->m_pkthdr.len, tp->mgmtrate); 2112 2113 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2114 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2115 2116 /* copy beacon header and payload into NIC memory */ 2117 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2118 m0->m_pkthdr.len); 2119 2120 m_freem(m0); 2121 2122 return 0; 2123} 2124 2125static int 2126rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2127 const struct ieee80211_bpf_params *params) 2128{ 2129 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2130 struct rum_softc *sc = ifp->if_softc; 2131 2132 RUM_LOCK(sc); 2133 /* prevent management frames from being sent if we're not ready */ 2134 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2135 RUM_UNLOCK(sc); 2136 m_freem(m); 2137 ieee80211_free_node(ni); 2138 return ENETDOWN; 2139 } 2140 if (sc->tx_nfree == 0) { 2141 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2142 RUM_UNLOCK(sc); 2143 m_freem(m); 2144 ieee80211_free_node(ni); 2145 return EIO; 2146 } 2147 2148 ifp->if_opackets++; 2149 2150 if (params == NULL) { 2151 /* 2152 * Legacy path; interpret frame contents to decide 2153 * precisely how to send the frame. 2154 */ 2155 if (rum_tx_mgt(sc, m, ni) != 0) 2156 goto bad; 2157 } else { 2158 /* 2159 * Caller supplied explicit parameters to use in 2160 * sending the frame. 2161 */ 2162 if (rum_tx_raw(sc, m, ni, params) != 0) 2163 goto bad; 2164 } 2165 RUM_UNLOCK(sc); 2166 2167 return 0; 2168bad: 2169 ifp->if_oerrors++; 2170 RUM_UNLOCK(sc); 2171 ieee80211_free_node(ni); 2172 return EIO; 2173} 2174 2175static void 2176rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2177{ 2178 struct ieee80211vap *vap = ni->ni_vap; 2179 struct rum_vap *rvp = RUM_VAP(vap); 2180 2181 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2182 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2183 2184 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2185 2186 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2187} 2188 2189static void 2190rum_amrr_timeout(void *arg) 2191{ 2192 struct rum_vap *rvp = arg; 2193 struct rum_softc *sc = rvp->sc; 2194 2195 rum_queue_command(sc, rum_amrr_task, 2196 &rvp->amrr_task[0].hdr, &rvp->amrr_task[1].hdr); 2197} 2198 2199static void 2200rum_amrr_task(struct usb2_proc_msg *pm) 2201{ 2202 struct rum_task *task = (struct rum_task *)pm; 2203 struct rum_softc *sc = task->sc; 2204 struct ifnet *ifp = sc->sc_ifp; 2205 struct ieee80211com *ic = ifp->if_l2com; 2206 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2207 struct rum_vap *rvp = RUM_VAP(vap); 2208 struct ieee80211_node *ni = vap->iv_bss; 2209 int ok, fail; 2210 2211 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2212 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2213 2214 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2215 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2216 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2217 2218 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2219 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2220 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2221 2222 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2223 2224 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2225} 2226 2227/* ARGUSED */ 2228static struct ieee80211_node * 2229rum_node_alloc(struct ieee80211vap *vap __unused, 2230 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2231{ 2232 struct rum_node *rn; 2233 2234 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2235 return rn != NULL ? &rn->ni : NULL; 2236} 2237 2238static void 2239rum_newassoc(struct ieee80211_node *ni, int isnew) 2240{ 2241 struct ieee80211vap *vap = ni->ni_vap; 2242 2243 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2244} 2245 2246static void 2247rum_scan_start(struct ieee80211com *ic) 2248{ 2249 struct rum_softc *sc = ic->ic_ifp->if_softc; 2250 2251 RUM_LOCK(sc); 2252 /* do it in a process context */ 2253 sc->sc_scan_action = RUM_SCAN_START; 2254 rum_queue_command(sc, rum_scantask, 2255 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2256 RUM_UNLOCK(sc); 2257 2258} 2259 2260static void 2261rum_scan_end(struct ieee80211com *ic) 2262{ 2263 struct rum_softc *sc = ic->ic_ifp->if_softc; 2264 2265 RUM_LOCK(sc); 2266 /* do it in a process context */ 2267 sc->sc_scan_action = RUM_SCAN_END; 2268 rum_queue_command(sc, rum_scantask, 2269 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2270 RUM_UNLOCK(sc); 2271 2272} 2273 2274static void 2275rum_set_channel(struct ieee80211com *ic) 2276{ 2277 struct rum_softc *sc = ic->ic_ifp->if_softc; 2278 2279 RUM_LOCK(sc); 2280 /* do it in a process context */ 2281 sc->sc_scan_action = RUM_SET_CHANNEL; 2282 rum_queue_command(sc, rum_scantask, 2283 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2284 2285 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 2286 RUM_UNLOCK(sc); 2287} 2288 2289static void 2290rum_scantask(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 uint32_t tmp; 2297 2298 RUM_LOCK_ASSERT(sc, MA_OWNED); 2299 2300 switch (sc->sc_scan_action) { 2301 case RUM_SCAN_START: 2302 /* abort TSF synchronization */ 2303 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2304 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2305 rum_set_bssid(sc, ifp->if_broadcastaddr); 2306 break; 2307 2308 case RUM_SET_CHANNEL: 2309 rum_set_chan(sc, ic->ic_curchan); 2310 break; 2311 2312 default: /* RUM_SCAN_END */ 2313 rum_enable_tsf_sync(sc); 2314 rum_set_bssid(sc, sc->sc_bssid); 2315 break; 2316 } 2317} 2318 2319static int 2320rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2321{ 2322 struct ifnet *ifp = sc->sc_ifp; 2323 struct ieee80211com *ic = ifp->if_l2com; 2324 int lna, agc, rssi; 2325 2326 lna = (raw >> 5) & 0x3; 2327 agc = raw & 0x1f; 2328 2329 if (lna == 0) { 2330 /* 2331 * No RSSI mapping 2332 * 2333 * NB: Since RSSI is relative to noise floor, -1 is 2334 * adequate for caller to know error happened. 2335 */ 2336 return -1; 2337 } 2338 2339 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2340 2341 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2342 rssi += sc->rssi_2ghz_corr; 2343 2344 if (lna == 1) 2345 rssi -= 64; 2346 else if (lna == 2) 2347 rssi -= 74; 2348 else if (lna == 3) 2349 rssi -= 90; 2350 } else { 2351 rssi += sc->rssi_5ghz_corr; 2352 2353 if (!sc->ext_5ghz_lna && lna != 1) 2354 rssi += 4; 2355 2356 if (lna == 1) 2357 rssi -= 64; 2358 else if (lna == 2) 2359 rssi -= 86; 2360 else if (lna == 3) 2361 rssi -= 100; 2362 } 2363 return rssi; 2364} 2365 2366static void 2367rum_queue_command(struct rum_softc *sc, usb2_proc_callback_t *fn, 2368 struct usb2_proc_msg *t0, struct usb2_proc_msg *t1) 2369{ 2370 struct rum_task *task; 2371 2372 RUM_LOCK_ASSERT(sc, MA_OWNED); 2373 2374 if (usb2_proc_is_gone(&sc->sc_tq)) { 2375 DPRINTF("proc is gone\n"); 2376 return; /* nothing to do */ 2377 } 2378 /* 2379 * NOTE: The task cannot get executed before we drop the 2380 * "sc_mtx" mutex. It is safe to update fields in the message 2381 * structure after that the message got queued. 2382 */ 2383 task = (struct rum_task *) 2384 usb2_proc_msignal(&sc->sc_tq, t0, t1); 2385 2386 /* Setup callback and softc pointers */ 2387 task->hdr.pm_callback = fn; 2388 task->sc = sc; 2389 2390 /* 2391 * Init and stop must be synchronous! 2392 */ 2393 if ((fn == rum_init_task) || (fn == rum_stop_task)) 2394 usb2_proc_mwait(&sc->sc_tq, t0, t1); 2395} 2396 2397static device_method_t rum_methods[] = { 2398 /* Device interface */ 2399 DEVMETHOD(device_probe, rum_match), 2400 DEVMETHOD(device_attach, rum_attach), 2401 DEVMETHOD(device_detach, rum_detach), 2402 2403 { 0, 0 } 2404}; 2405 2406static driver_t rum_driver = { 2407 .name = "rum", 2408 .methods = rum_methods, 2409 .size = sizeof(struct rum_softc), 2410}; 2411 2412static devclass_t rum_devclass; 2413 2414DRIVER_MODULE(rum, ushub, rum_driver, rum_devclass, NULL, 0); 2415