if_rum.c revision 188969
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 188969 2009-02-23 23:46:56Z 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 188969 2009-02-23 23:46:56Z 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 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, usb, 1, 1, 1); 113 114static device_probe_t rum_match; 115static device_attach_t rum_attach; 116static device_detach_t rum_detach; 117 118static usb2_callback_t rum_bulk_read_callback; 119static usb2_callback_t rum_bulk_write_callback; 120 121static usb2_proc_callback_t rum_attach_post; 122static usb2_proc_callback_t rum_task; 123static usb2_proc_callback_t rum_scantask; 124static usb2_proc_callback_t rum_promisctask; 125static usb2_proc_callback_t rum_amrr_task; 126static usb2_proc_callback_t rum_init_task; 127static usb2_proc_callback_t rum_stop_task; 128 129static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 130 const char name[IFNAMSIZ], int unit, int opmode, 131 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 132 const uint8_t mac[IEEE80211_ADDR_LEN]); 133static void rum_vap_delete(struct ieee80211vap *); 134static void rum_tx_free(struct rum_tx_data *, int); 135static void rum_setup_tx_list(struct rum_softc *); 136static void rum_unsetup_tx_list(struct rum_softc *); 137static int rum_newstate(struct ieee80211vap *, 138 enum ieee80211_state, int); 139static void rum_setup_tx_desc(struct rum_softc *, 140 struct rum_tx_desc *, uint32_t, uint16_t, int, 141 int); 142static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 143 struct ieee80211_node *); 144static int rum_tx_raw(struct rum_softc *, struct mbuf *, 145 struct ieee80211_node *, 146 const struct ieee80211_bpf_params *); 147static int rum_tx_data(struct rum_softc *, struct mbuf *, 148 struct ieee80211_node *); 149static void rum_start(struct ifnet *); 150static int rum_ioctl(struct ifnet *, u_long, caddr_t); 151static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 152 int); 153static uint32_t rum_read(struct rum_softc *, uint16_t); 154static void rum_read_multi(struct rum_softc *, uint16_t, void *, 155 int); 156static void rum_write(struct rum_softc *, uint16_t, uint32_t); 157static void rum_write_multi(struct rum_softc *, uint16_t, void *, 158 size_t); 159static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 160static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 161static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 162static void rum_select_antenna(struct rum_softc *); 163static void rum_enable_mrr(struct rum_softc *); 164static void rum_set_txpreamble(struct rum_softc *); 165static void rum_set_basicrates(struct rum_softc *); 166static void rum_select_band(struct rum_softc *, 167 struct ieee80211_channel *); 168static void rum_set_chan(struct rum_softc *, 169 struct ieee80211_channel *); 170static void rum_enable_tsf_sync(struct rum_softc *); 171static void rum_update_slot(struct ifnet *); 172static void rum_set_bssid(struct rum_softc *, const uint8_t *); 173static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 174static const char *rum_get_rf(int); 175static void rum_read_eeprom(struct rum_softc *); 176static int rum_bbp_init(struct rum_softc *); 177static void rum_init(void *); 178static int rum_load_microcode(struct rum_softc *, const u_char *, 179 size_t); 180static int rum_prepare_beacon(struct rum_softc *, 181 struct ieee80211vap *); 182static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 183 const struct ieee80211_bpf_params *); 184static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 185 const uint8_t mac[IEEE80211_ADDR_LEN]); 186static void rum_newassoc(struct ieee80211_node *, int); 187static void rum_scan_start(struct ieee80211com *); 188static void rum_scan_end(struct ieee80211com *); 189static void rum_set_channel(struct ieee80211com *); 190static int rum_get_rssi(struct rum_softc *, uint8_t); 191static void rum_amrr_start(struct rum_softc *, 192 struct ieee80211_node *); 193static void rum_amrr_timeout(void *); 194static int rum_pause(struct rum_softc *, int); 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 < 100; ntries++) { 450 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 451 break; 452 if (rum_pause(sc, hz / 100)) 453 break; 454 } 455 if (ntries == 100) { 456 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 457 return; 458 } 459 460 /* retrieve MAC address and various other things from EEPROM */ 461 rum_read_eeprom(sc); 462 463 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 464 tmp, rum_get_rf(sc->rf_rev)); 465 466 error = rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 467 if (error != 0) { 468 RUM_UNLOCK(sc); 469 device_printf(sc->sc_dev, "could not load 8051 microcode\n"); 470 return; 471 } 472 RUM_UNLOCK(sc); 473 474 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 475 if (ifp == NULL) { 476 device_printf(sc->sc_dev, "can not if_alloc()\n"); 477 RUM_LOCK(sc); 478 return; 479 } 480 ic = ifp->if_l2com; 481 482 ifp->if_softc = sc; 483 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 484 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 485 ifp->if_init = rum_init; 486 ifp->if_ioctl = rum_ioctl; 487 ifp->if_start = rum_start; 488 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 489 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 490 IFQ_SET_READY(&ifp->if_snd); 491 492 ic->ic_ifp = ifp; 493 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 494 IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_bssid); 495 496 /* set device capabilities */ 497 ic->ic_caps = 498 IEEE80211_C_STA /* station mode supported */ 499 | IEEE80211_C_IBSS /* IBSS mode supported */ 500 | IEEE80211_C_MONITOR /* monitor mode supported */ 501 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 502 | IEEE80211_C_TXPMGT /* tx power management */ 503 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 504 | IEEE80211_C_SHSLOT /* short slot time supported */ 505 | IEEE80211_C_BGSCAN /* bg scanning supported */ 506 | IEEE80211_C_WPA /* 802.11i */ 507 ; 508 509 bands = 0; 510 setbit(&bands, IEEE80211_MODE_11B); 511 setbit(&bands, IEEE80211_MODE_11G); 512 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 513 setbit(&bands, IEEE80211_MODE_11A); 514 ieee80211_init_channels(ic, NULL, &bands); 515 516 ieee80211_ifattach(ic); 517 ic->ic_newassoc = rum_newassoc; 518 ic->ic_raw_xmit = rum_raw_xmit; 519 ic->ic_node_alloc = rum_node_alloc; 520 ic->ic_scan_start = rum_scan_start; 521 ic->ic_scan_end = rum_scan_end; 522 ic->ic_set_channel = rum_set_channel; 523 524 ic->ic_vap_create = rum_vap_create; 525 ic->ic_vap_delete = rum_vap_delete; 526 527 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 528 529 bpfattach(ifp, DLT_IEEE802_11_RADIO, 530 sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap)); 531 532 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 533 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 534 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 535 536 sc->sc_txtap_len = sizeof sc->sc_txtap; 537 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 538 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 539 540 if (bootverbose) 541 ieee80211_announce(ic); 542 543 RUM_LOCK(sc); 544} 545 546static int 547rum_detach(device_t self) 548{ 549 struct rum_softc *sc = device_get_softc(self); 550 struct ifnet *ifp = sc->sc_ifp; 551 struct ieee80211com *ic; 552 553 /* wait for any post attach or other command to complete */ 554 usb2_proc_drain(&sc->sc_tq); 555 556 /* stop all USB transfers */ 557 usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 558 usb2_proc_free(&sc->sc_tq); 559 560 /* free TX list, if any */ 561 RUM_LOCK(sc); 562 rum_unsetup_tx_list(sc); 563 RUM_UNLOCK(sc); 564 565 if (ifp) { 566 ic = ifp->if_l2com; 567 bpfdetach(ifp); 568 ieee80211_ifdetach(ic); 569 if_free(ifp); 570 } 571 572 mtx_destroy(&sc->sc_mtx); 573 574 return (0); 575} 576 577static struct ieee80211vap * 578rum_vap_create(struct ieee80211com *ic, 579 const char name[IFNAMSIZ], int unit, int opmode, int flags, 580 const uint8_t bssid[IEEE80211_ADDR_LEN], 581 const uint8_t mac[IEEE80211_ADDR_LEN]) 582{ 583 struct rum_softc *sc = ic->ic_ifp->if_softc; 584 struct rum_vap *rvp; 585 struct ieee80211vap *vap; 586 587 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 588 return NULL; 589 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 590 M_80211_VAP, M_NOWAIT | M_ZERO); 591 if (rvp == NULL) 592 return NULL; 593 vap = &rvp->vap; 594 /* enable s/w bmiss handling for sta mode */ 595 ieee80211_vap_setup(ic, vap, name, unit, opmode, 596 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 597 598 /* override state transition machine */ 599 rvp->newstate = vap->iv_newstate; 600 vap->iv_newstate = rum_newstate; 601 602 rvp->sc = sc; 603 usb2_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 604 ieee80211_amrr_init(&rvp->amrr, vap, 605 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 606 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 607 1000 /* 1 sec */); 608 609 /* complete setup */ 610 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 611 ic->ic_opmode = opmode; 612 return vap; 613} 614 615static void 616rum_vap_delete(struct ieee80211vap *vap) 617{ 618 struct rum_vap *rvp = RUM_VAP(vap); 619 620 usb2_callout_drain(&rvp->amrr_ch); 621 ieee80211_amrr_cleanup(&rvp->amrr); 622 ieee80211_vap_detach(vap); 623 free(rvp, M_80211_VAP); 624} 625 626static void 627rum_tx_free(struct rum_tx_data *data, int txerr) 628{ 629 struct rum_softc *sc = data->sc; 630 631 if (data->m != NULL) { 632 if (data->m->m_flags & M_TXCB) 633 ieee80211_process_callback(data->ni, data->m, 634 txerr ? ETIMEDOUT : 0); 635 m_freem(data->m); 636 data->m = NULL; 637 638 ieee80211_free_node(data->ni); 639 data->ni = NULL; 640 } 641 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 642 sc->tx_nfree++; 643} 644 645static void 646rum_setup_tx_list(struct rum_softc *sc) 647{ 648 struct rum_tx_data *data; 649 int i; 650 651 sc->tx_nfree = 0; 652 STAILQ_INIT(&sc->tx_q); 653 STAILQ_INIT(&sc->tx_free); 654 655 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 656 data = &sc->tx_data[i]; 657 658 data->sc = sc; 659 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 660 sc->tx_nfree++; 661 } 662} 663 664static void 665rum_unsetup_tx_list(struct rum_softc *sc) 666{ 667 struct rum_tx_data *data; 668 int i; 669 670 /* make sure any subsequent use of the queues will fail */ 671 sc->tx_nfree = 0; 672 STAILQ_INIT(&sc->tx_q); 673 STAILQ_INIT(&sc->tx_free); 674 675 /* free up all node references and mbufs */ 676 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 677 data = &sc->tx_data[i]; 678 679 if (data->m != NULL) { 680 m_freem(data->m); 681 data->m = NULL; 682 } 683 if (data->ni != NULL) { 684 ieee80211_free_node(data->ni); 685 data->ni = NULL; 686 } 687 } 688} 689 690static void 691rum_task(struct usb2_proc_msg *pm) 692{ 693 struct rum_task *task = (struct rum_task *)pm; 694 struct rum_softc *sc = task->sc; 695 struct ifnet *ifp = sc->sc_ifp; 696 struct ieee80211com *ic = ifp->if_l2com; 697 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 698 struct rum_vap *rvp = RUM_VAP(vap); 699 const struct ieee80211_txparam *tp; 700 enum ieee80211_state ostate; 701 struct ieee80211_node *ni; 702 uint32_t tmp; 703 704 ostate = vap->iv_state; 705 706 switch (sc->sc_state) { 707 case IEEE80211_S_INIT: 708 if (ostate == IEEE80211_S_RUN) { 709 /* abort TSF synchronization */ 710 tmp = rum_read(sc, RT2573_TXRX_CSR9); 711 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 712 } 713 break; 714 715 case IEEE80211_S_RUN: 716 ni = vap->iv_bss; 717 718 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 719 rum_update_slot(ic->ic_ifp); 720 rum_enable_mrr(sc); 721 rum_set_txpreamble(sc); 722 rum_set_basicrates(sc); 723 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 724 rum_set_bssid(sc, sc->sc_bssid); 725 } 726 727 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 728 vap->iv_opmode == IEEE80211_M_IBSS) 729 rum_prepare_beacon(sc, vap); 730 731 if (vap->iv_opmode != IEEE80211_M_MONITOR) 732 rum_enable_tsf_sync(sc); 733 734 /* enable automatic rate adaptation */ 735 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 736 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 737 rum_amrr_start(sc, ni); 738 break; 739 default: 740 break; 741 } 742 743 RUM_UNLOCK(sc); 744 IEEE80211_LOCK(ic); 745 rvp->newstate(vap, sc->sc_state, sc->sc_arg); 746 if (vap->iv_newstate_cb != NULL) 747 vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg); 748 IEEE80211_UNLOCK(ic); 749 RUM_LOCK(sc); 750} 751 752static int 753rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 754{ 755 struct rum_vap *rvp = RUM_VAP(vap); 756 struct ieee80211com *ic = vap->iv_ic; 757 struct rum_softc *sc = ic->ic_ifp->if_softc; 758 759 DPRINTF("%s -> %s\n", 760 ieee80211_state_name[vap->iv_state], 761 ieee80211_state_name[nstate]); 762 763 RUM_LOCK(sc); 764 usb2_callout_stop(&rvp->amrr_ch); 765 766 /* do it in a process context */ 767 sc->sc_state = nstate; 768 sc->sc_arg = arg; 769 RUM_UNLOCK(sc); 770 771 if (nstate == IEEE80211_S_INIT) { 772 rvp->newstate(vap, nstate, arg); 773 return 0; 774 } else { 775 RUM_LOCK(sc); 776 rum_queue_command(sc, rum_task, &sc->sc_task[0].hdr, 777 &sc->sc_task[1].hdr); 778 RUM_UNLOCK(sc); 779 return EINPROGRESS; 780 } 781} 782 783static void 784rum_bulk_write_callback(struct usb2_xfer *xfer) 785{ 786 struct rum_softc *sc = xfer->priv_sc; 787 struct ifnet *ifp = sc->sc_ifp; 788 struct ieee80211com *ic = ifp->if_l2com; 789 struct ieee80211_channel *c = ic->ic_curchan; 790 struct rum_tx_data *data; 791 struct mbuf *m; 792 unsigned int len; 793 794 switch (USB_GET_STATE(xfer)) { 795 case USB_ST_TRANSFERRED: 796 DPRINTFN(11, "transfer complete, %d bytes\n", xfer->actlen); 797 798 /* free resources */ 799 data = xfer->priv_fifo; 800 rum_tx_free(data, 0); 801 xfer->priv_fifo = NULL; 802 803 ifp->if_opackets++; 804 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 805 806 /* FALLTHROUGH */ 807 case USB_ST_SETUP: 808tr_setup: 809 data = STAILQ_FIRST(&sc->tx_q); 810 if (data) { 811 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 812 m = data->m; 813 814 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 815 DPRINTFN(0, "data overflow, %u bytes\n", 816 m->m_pkthdr.len); 817 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 818 } 819 usb2_copy_in(xfer->frbuffers, 0, &data->desc, 820 RT2573_TX_DESC_SIZE); 821 usb2_m_copy_in(xfer->frbuffers, RT2573_TX_DESC_SIZE, m, 822 0, m->m_pkthdr.len); 823 824 if (bpf_peers_present(ifp->if_bpf)) { 825 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 826 827 tap->wt_flags = 0; 828 tap->wt_rate = data->rate; 829 tap->wt_chan_freq = htole16(c->ic_freq); 830 tap->wt_chan_flags = htole16(c->ic_flags); 831 tap->wt_antenna = sc->tx_ant; 832 833 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m); 834 } 835 836 /* align end on a 4-bytes boundary */ 837 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 838 if ((len % 64) == 0) 839 len += 4; 840 841 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 842 m->m_pkthdr.len, len); 843 844 xfer->frlengths[0] = len; 845 xfer->priv_fifo = data; 846 847 usb2_start_hardware(xfer); 848 } 849 break; 850 851 default: /* Error */ 852 DPRINTFN(11, "transfer error, %s\n", 853 usb2_errstr(xfer->error)); 854 855 ifp->if_oerrors++; 856 data = xfer->priv_fifo; 857 if (data != NULL) { 858 rum_tx_free(data, xfer->error); 859 xfer->priv_fifo = NULL; 860 } 861 862 if (xfer->error == USB_ERR_STALLED) { 863 /* try to clear stall first */ 864 xfer->flags.stall_pipe = 1; 865 goto tr_setup; 866 } 867 if (xfer->error == USB_ERR_TIMEOUT) 868 device_printf(sc->sc_dev, "device timeout\n"); 869 break; 870 } 871} 872 873static void 874rum_bulk_read_callback(struct usb2_xfer *xfer) 875{ 876 struct rum_softc *sc = xfer->priv_sc; 877 struct ifnet *ifp = sc->sc_ifp; 878 struct ieee80211com *ic = ifp->if_l2com; 879 struct ieee80211_node *ni; 880 struct mbuf *m = NULL; 881 uint32_t flags; 882 uint8_t rssi = 0; 883 unsigned int len; 884 885 switch (USB_GET_STATE(xfer)) { 886 case USB_ST_TRANSFERRED: 887 888 DPRINTFN(15, "rx done, actlen=%d\n", xfer->actlen); 889 890 len = xfer->actlen; 891 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 892 DPRINTF("%s: xfer too short %d\n", 893 device_get_nameunit(sc->sc_dev), len); 894 ifp->if_ierrors++; 895 goto tr_setup; 896 } 897 898 len -= RT2573_RX_DESC_SIZE; 899 usb2_copy_out(xfer->frbuffers, 0, &sc->sc_rx_desc, 900 RT2573_RX_DESC_SIZE); 901 902 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 903 flags = le32toh(sc->sc_rx_desc.flags); 904 if (flags & RT2573_RX_CRC_ERROR) { 905 /* 906 * This should not happen since we did not 907 * request to receive those frames when we 908 * filled RUM_TXRX_CSR2: 909 */ 910 DPRINTFN(5, "PHY or CRC error\n"); 911 ifp->if_ierrors++; 912 goto tr_setup; 913 } 914 915 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 916 if (m == NULL) { 917 DPRINTF("could not allocate mbuf\n"); 918 ifp->if_ierrors++; 919 goto tr_setup; 920 } 921 usb2_copy_out(xfer->frbuffers, RT2573_RX_DESC_SIZE, 922 mtod(m, uint8_t *), len); 923 924 /* finalize mbuf */ 925 m->m_pkthdr.rcvif = ifp; 926 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 927 928 if (bpf_peers_present(ifp->if_bpf)) { 929 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 930 931 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 932 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 933 (flags & RT2573_RX_OFDM) ? 934 IEEE80211_T_OFDM : IEEE80211_T_CCK); 935 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 936 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 937 tap->wr_antenna = sc->rx_ant; 938 tap->wr_antsignal = rssi; 939 940 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 941 } 942 /* FALLTHROUGH */ 943 case USB_ST_SETUP: 944tr_setup: 945 xfer->frlengths[0] = xfer->max_data_length; 946 usb2_start_hardware(xfer); 947 948 /* 949 * At the end of a USB callback it is always safe to unlock 950 * the private mutex of a device! That is why we do the 951 * "ieee80211_input" here, and not some lines up! 952 */ 953 if (m) { 954 RUM_UNLOCK(sc); 955 ni = ieee80211_find_rxnode(ic, 956 mtod(m, struct ieee80211_frame_min *)); 957 if (ni != NULL) { 958 (void) ieee80211_input(ni, m, rssi, 959 RT2573_NOISE_FLOOR, 0); 960 ieee80211_free_node(ni); 961 } else 962 (void) ieee80211_input_all(ic, m, rssi, 963 RT2573_NOISE_FLOOR, 0); 964 RUM_LOCK(sc); 965 } 966 return; 967 968 default: /* Error */ 969 if (xfer->error != USB_ERR_CANCELLED) { 970 /* try to clear stall first */ 971 xfer->flags.stall_pipe = 1; 972 goto tr_setup; 973 } 974 return; 975 } 976} 977 978static uint8_t 979rum_plcp_signal(int rate) 980{ 981 switch (rate) { 982 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 983 case 12: return 0xb; 984 case 18: return 0xf; 985 case 24: return 0xa; 986 case 36: return 0xe; 987 case 48: return 0x9; 988 case 72: return 0xd; 989 case 96: return 0x8; 990 case 108: return 0xc; 991 992 /* CCK rates (NB: not IEEE std, device-specific) */ 993 case 2: return 0x0; 994 case 4: return 0x1; 995 case 11: return 0x2; 996 case 22: return 0x3; 997 } 998 return 0xff; /* XXX unsupported/unknown rate */ 999} 1000 1001static void 1002rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1003 uint32_t flags, uint16_t xflags, int len, int rate) 1004{ 1005 struct ifnet *ifp = sc->sc_ifp; 1006 struct ieee80211com *ic = ifp->if_l2com; 1007 uint16_t plcp_length; 1008 int remainder; 1009 1010 desc->flags = htole32(flags); 1011 desc->flags |= htole32(RT2573_TX_VALID); 1012 desc->flags |= htole32(len << 16); 1013 1014 desc->xflags = htole16(xflags); 1015 1016 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1017 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1018 1019 /* setup PLCP fields */ 1020 desc->plcp_signal = rum_plcp_signal(rate); 1021 desc->plcp_service = 4; 1022 1023 len += IEEE80211_CRC_LEN; 1024 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) { 1025 desc->flags |= htole32(RT2573_TX_OFDM); 1026 1027 plcp_length = len & 0xfff; 1028 desc->plcp_length_hi = plcp_length >> 6; 1029 desc->plcp_length_lo = plcp_length & 0x3f; 1030 } else { 1031 plcp_length = (16 * len + rate - 1) / rate; 1032 if (rate == 22) { 1033 remainder = (16 * len) % 22; 1034 if (remainder != 0 && remainder < 7) 1035 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1036 } 1037 desc->plcp_length_hi = plcp_length >> 8; 1038 desc->plcp_length_lo = plcp_length & 0xff; 1039 1040 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1041 desc->plcp_signal |= 0x08; 1042 } 1043} 1044 1045#define RUM_TX_TIMEOUT 5000 1046 1047static int 1048rum_sendprot(struct rum_softc *sc, 1049 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1050{ 1051 struct ieee80211com *ic = ni->ni_ic; 1052 const struct ieee80211_frame *wh; 1053 struct rum_tx_data *data; 1054 struct mbuf *mprot; 1055 int protrate, ackrate, pktlen, flags, isshort; 1056 uint16_t dur; 1057 1058 RUM_LOCK_ASSERT(sc, MA_OWNED); 1059 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1060 ("protection %d", prot)); 1061 1062 wh = mtod(m, const struct ieee80211_frame *); 1063 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1064 1065 protrate = ieee80211_ctl_rate(sc->sc_rates, rate); 1066 ackrate = ieee80211_ack_rate(sc->sc_rates, rate); 1067 1068 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1069 dur = ieee80211_compute_duration(sc->sc_rates, pktlen, rate, isshort); 1070 + ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1071 flags = RT2573_TX_MORE_FRAG; 1072 if (prot == IEEE80211_PROT_RTSCTS) { 1073 /* NB: CTS is the same size as an ACK */ 1074 dur += ieee80211_ack_duration(sc->sc_rates, rate, isshort); 1075 flags |= RT2573_TX_NEED_ACK; 1076 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1077 } else { 1078 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1079 } 1080 if (mprot == NULL) { 1081 /* XXX stat + msg */ 1082 return ENOBUFS; 1083 } 1084 data = STAILQ_FIRST(&sc->tx_free); 1085 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1086 sc->tx_nfree--; 1087 1088 data->m = mprot; 1089 data->ni = ieee80211_ref_node(ni); 1090 data->rate = protrate; 1091 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1092 1093 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1094 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1095 1096 return 0; 1097} 1098 1099static int 1100rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1101{ 1102 struct ieee80211vap *vap = ni->ni_vap; 1103 struct ifnet *ifp = sc->sc_ifp; 1104 struct ieee80211com *ic = ifp->if_l2com; 1105 struct rum_tx_data *data; 1106 struct ieee80211_frame *wh; 1107 const struct ieee80211_txparam *tp; 1108 struct ieee80211_key *k; 1109 uint32_t flags = 0; 1110 uint16_t dur; 1111 1112 RUM_LOCK_ASSERT(sc, MA_OWNED); 1113 1114 data = STAILQ_FIRST(&sc->tx_free); 1115 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1116 sc->tx_nfree--; 1117 1118 wh = mtod(m0, struct ieee80211_frame *); 1119 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1120 k = ieee80211_crypto_encap(ni, m0); 1121 if (k == NULL) { 1122 m_freem(m0); 1123 return ENOBUFS; 1124 } 1125 wh = mtod(m0, struct ieee80211_frame *); 1126 } 1127 1128 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1129 1130 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1131 flags |= RT2573_TX_NEED_ACK; 1132 1133 dur = ieee80211_ack_duration(sc->sc_rates, tp->mgmtrate, 1134 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1135 *(uint16_t *)wh->i_dur = htole16(dur); 1136 1137 /* tell hardware to add timestamp for probe responses */ 1138 if ((wh->i_fc[0] & 1139 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1140 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1141 flags |= RT2573_TX_TIMESTAMP; 1142 } 1143 1144 data->m = m0; 1145 data->ni = ni; 1146 data->rate = tp->mgmtrate; 1147 1148 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1149 1150 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1151 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1152 1153 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1154 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1155 1156 return 0; 1157} 1158 1159static int 1160rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1161 const struct ieee80211_bpf_params *params) 1162{ 1163 struct rum_tx_data *data; 1164 uint32_t flags; 1165 int rate, error; 1166 1167 RUM_LOCK_ASSERT(sc, MA_OWNED); 1168 KASSERT(params != NULL, ("no raw xmit params")); 1169 1170 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1171 /* XXX validate */ 1172 if (rate == 0) { 1173 m_freem(m0); 1174 return EINVAL; 1175 } 1176 flags = 0; 1177 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1178 flags |= RT2573_TX_NEED_ACK; 1179 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1180 error = rum_sendprot(sc, m0, ni, 1181 params->ibp_flags & IEEE80211_BPF_RTS ? 1182 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1183 rate); 1184 if (error || sc->tx_nfree == 0) { 1185 m_freem(m0); 1186 return ENOBUFS; 1187 } 1188 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1189 } 1190 1191 data = STAILQ_FIRST(&sc->tx_free); 1192 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1193 sc->tx_nfree--; 1194 1195 data->m = m0; 1196 data->ni = ni; 1197 data->rate = rate; 1198 1199 /* XXX need to setup descriptor ourself */ 1200 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1201 1202 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1203 m0->m_pkthdr.len, rate); 1204 1205 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1206 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1207 1208 return 0; 1209} 1210 1211static int 1212rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1213{ 1214 struct ieee80211vap *vap = ni->ni_vap; 1215 struct ifnet *ifp = sc->sc_ifp; 1216 struct ieee80211com *ic = ifp->if_l2com; 1217 struct rum_tx_data *data; 1218 struct ieee80211_frame *wh; 1219 const struct ieee80211_txparam *tp; 1220 struct ieee80211_key *k; 1221 uint32_t flags = 0; 1222 uint16_t dur; 1223 int error, rate; 1224 1225 RUM_LOCK_ASSERT(sc, MA_OWNED); 1226 1227 wh = mtod(m0, struct ieee80211_frame *); 1228 1229 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1230 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1231 rate = tp->mcastrate; 1232 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1233 rate = tp->ucastrate; 1234 else 1235 rate = ni->ni_txrate; 1236 1237 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1238 k = ieee80211_crypto_encap(ni, m0); 1239 if (k == NULL) { 1240 m_freem(m0); 1241 return ENOBUFS; 1242 } 1243 1244 /* packet header may have moved, reset our local pointer */ 1245 wh = mtod(m0, struct ieee80211_frame *); 1246 } 1247 1248 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1249 int prot = IEEE80211_PROT_NONE; 1250 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1251 prot = IEEE80211_PROT_RTSCTS; 1252 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1253 ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) 1254 prot = ic->ic_protmode; 1255 if (prot != IEEE80211_PROT_NONE) { 1256 error = rum_sendprot(sc, m0, ni, prot, rate); 1257 if (error || sc->tx_nfree == 0) { 1258 m_freem(m0); 1259 return ENOBUFS; 1260 } 1261 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1262 } 1263 } 1264 1265 data = STAILQ_FIRST(&sc->tx_free); 1266 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1267 sc->tx_nfree--; 1268 1269 data->m = m0; 1270 data->ni = ni; 1271 data->rate = rate; 1272 1273 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1274 flags |= RT2573_TX_NEED_ACK; 1275 flags |= RT2573_TX_MORE_FRAG; 1276 1277 dur = ieee80211_ack_duration(sc->sc_rates, rate, 1278 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1279 *(uint16_t *)wh->i_dur = htole16(dur); 1280 } 1281 1282 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1283 1284 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1285 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1286 1287 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1288 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1289 1290 return 0; 1291} 1292 1293static void 1294rum_start(struct ifnet *ifp) 1295{ 1296 struct rum_softc *sc = ifp->if_softc; 1297 struct ieee80211_node *ni; 1298 struct mbuf *m; 1299 1300 RUM_LOCK(sc); 1301 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1302 RUM_UNLOCK(sc); 1303 return; 1304 } 1305 for (;;) { 1306 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1307 if (m == NULL) 1308 break; 1309 if (sc->tx_nfree < RUM_TX_MINFREE) { 1310 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1311 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1312 break; 1313 } 1314 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1315 m = ieee80211_encap(ni, m); 1316 if (m == NULL) { 1317 ieee80211_free_node(ni); 1318 continue; 1319 } 1320 if (rum_tx_data(sc, m, ni) != 0) { 1321 ieee80211_free_node(ni); 1322 ifp->if_oerrors++; 1323 break; 1324 } 1325 } 1326 RUM_UNLOCK(sc); 1327} 1328 1329static int 1330rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1331{ 1332 struct rum_softc *sc = ifp->if_softc; 1333 struct ieee80211com *ic = ifp->if_l2com; 1334 struct ifreq *ifr = (struct ifreq *) data; 1335 int error = 0, startall = 0; 1336 1337 switch (cmd) { 1338 case SIOCSIFFLAGS: 1339 RUM_LOCK(sc); 1340 if (ifp->if_flags & IFF_UP) { 1341 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1342 rum_queue_command(sc, rum_init_task, 1343 &sc->sc_synctask[0].hdr, 1344 &sc->sc_synctask[1].hdr); 1345 startall = 1; 1346 } else 1347 rum_queue_command(sc, rum_promisctask, 1348 &sc->sc_promisctask[0].hdr, 1349 &sc->sc_promisctask[1].hdr); 1350 } else { 1351 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1352 rum_queue_command(sc, rum_stop_task, 1353 &sc->sc_synctask[0].hdr, 1354 &sc->sc_synctask[1].hdr); 1355 } 1356 } 1357 RUM_UNLOCK(sc); 1358 if (startall) 1359 ieee80211_start_all(ic); 1360 break; 1361 case SIOCGIFMEDIA: 1362 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1363 break; 1364 case SIOCGIFADDR: 1365 error = ether_ioctl(ifp, cmd, data); 1366 break; 1367 default: 1368 error = EINVAL; 1369 break; 1370 } 1371 return error; 1372} 1373 1374static void 1375rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1376{ 1377 struct usb2_device_request req; 1378 usb2_error_t error; 1379 1380 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1381 req.bRequest = RT2573_READ_EEPROM; 1382 USETW(req.wValue, 0); 1383 USETW(req.wIndex, addr); 1384 USETW(req.wLength, len); 1385 1386 error = rum_do_request(sc, &req, buf); 1387 if (error != 0) { 1388 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1389 usb2_errstr(error)); 1390 } 1391} 1392 1393static uint32_t 1394rum_read(struct rum_softc *sc, uint16_t reg) 1395{ 1396 uint32_t val; 1397 1398 rum_read_multi(sc, reg, &val, sizeof val); 1399 1400 return le32toh(val); 1401} 1402 1403static void 1404rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1405{ 1406 struct usb2_device_request req; 1407 usb2_error_t error; 1408 1409 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1410 req.bRequest = RT2573_READ_MULTI_MAC; 1411 USETW(req.wValue, 0); 1412 USETW(req.wIndex, reg); 1413 USETW(req.wLength, len); 1414 1415 error = rum_do_request(sc, &req, buf); 1416 if (error != 0) { 1417 device_printf(sc->sc_dev, 1418 "could not multi read MAC register: %s\n", 1419 usb2_errstr(error)); 1420 } 1421} 1422 1423static void 1424rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1425{ 1426 uint32_t tmp = htole32(val); 1427 1428 rum_write_multi(sc, reg, &tmp, sizeof tmp); 1429} 1430 1431static void 1432rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1433{ 1434 struct usb2_device_request req; 1435 usb2_error_t error; 1436 1437 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1438 req.bRequest = RT2573_WRITE_MULTI_MAC; 1439 USETW(req.wValue, 0); 1440 USETW(req.wIndex, reg); 1441 USETW(req.wLength, len); 1442 1443 error = rum_do_request(sc, &req, buf); 1444 if (error != 0) { 1445 device_printf(sc->sc_dev, 1446 "could not multi write MAC register: %s\n", 1447 usb2_errstr(error)); 1448 } 1449} 1450 1451static void 1452rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1453{ 1454 uint32_t tmp; 1455 int ntries; 1456 1457 for (ntries = 0; ntries < 100; ntries++) { 1458 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1459 break; 1460 if (rum_pause(sc, hz / 100)) 1461 break; 1462 } 1463 if (ntries == 100) { 1464 device_printf(sc->sc_dev, "could not write to BBP\n"); 1465 return; 1466 } 1467 1468 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1469 rum_write(sc, RT2573_PHY_CSR3, tmp); 1470} 1471 1472static uint8_t 1473rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1474{ 1475 uint32_t val; 1476 int ntries; 1477 1478 for (ntries = 0; ntries < 100; ntries++) { 1479 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1480 break; 1481 if (rum_pause(sc, hz / 100)) 1482 break; 1483 } 1484 if (ntries == 100) { 1485 device_printf(sc->sc_dev, "could not read BBP\n"); 1486 return 0; 1487 } 1488 1489 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1490 rum_write(sc, RT2573_PHY_CSR3, val); 1491 1492 for (ntries = 0; ntries < 100; ntries++) { 1493 val = rum_read(sc, RT2573_PHY_CSR3); 1494 if (!(val & RT2573_BBP_BUSY)) 1495 return val & 0xff; 1496 if (rum_pause(sc, hz / 100)) 1497 break; 1498 } 1499 1500 device_printf(sc->sc_dev, "could not read BBP\n"); 1501 return 0; 1502} 1503 1504static void 1505rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1506{ 1507 uint32_t tmp; 1508 int ntries; 1509 1510 for (ntries = 0; ntries < 100; ntries++) { 1511 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1512 break; 1513 if (rum_pause(sc, hz / 100)) 1514 break; 1515 } 1516 if (ntries == 100) { 1517 device_printf(sc->sc_dev, "could not write to RF\n"); 1518 return; 1519 } 1520 1521 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1522 (reg & 3); 1523 rum_write(sc, RT2573_PHY_CSR4, tmp); 1524 1525 /* remember last written value in sc */ 1526 sc->rf_regs[reg] = val; 1527 1528 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1529} 1530 1531static void 1532rum_select_antenna(struct rum_softc *sc) 1533{ 1534 uint8_t bbp4, bbp77; 1535 uint32_t tmp; 1536 1537 bbp4 = rum_bbp_read(sc, 4); 1538 bbp77 = rum_bbp_read(sc, 77); 1539 1540 /* TBD */ 1541 1542 /* make sure Rx is disabled before switching antenna */ 1543 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1544 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1545 1546 rum_bbp_write(sc, 4, bbp4); 1547 rum_bbp_write(sc, 77, bbp77); 1548 1549 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1550} 1551 1552/* 1553 * Enable multi-rate retries for frames sent at OFDM rates. 1554 * In 802.11b/g mode, allow fallback to CCK rates. 1555 */ 1556static void 1557rum_enable_mrr(struct rum_softc *sc) 1558{ 1559 struct ifnet *ifp = sc->sc_ifp; 1560 struct ieee80211com *ic = ifp->if_l2com; 1561 uint32_t tmp; 1562 1563 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1564 1565 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1566 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1567 tmp |= RT2573_MRR_CCK_FALLBACK; 1568 tmp |= RT2573_MRR_ENABLED; 1569 1570 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1571} 1572 1573static void 1574rum_set_txpreamble(struct rum_softc *sc) 1575{ 1576 struct ifnet *ifp = sc->sc_ifp; 1577 struct ieee80211com *ic = ifp->if_l2com; 1578 uint32_t tmp; 1579 1580 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1581 1582 tmp &= ~RT2573_SHORT_PREAMBLE; 1583 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1584 tmp |= RT2573_SHORT_PREAMBLE; 1585 1586 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1587} 1588 1589static void 1590rum_set_basicrates(struct rum_softc *sc) 1591{ 1592 struct ifnet *ifp = sc->sc_ifp; 1593 struct ieee80211com *ic = ifp->if_l2com; 1594 1595 /* update basic rate set */ 1596 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1597 /* 11b basic rates: 1, 2Mbps */ 1598 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1599 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1600 /* 11a basic rates: 6, 12, 24Mbps */ 1601 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1602 } else { 1603 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1604 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1605 } 1606} 1607 1608/* 1609 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1610 * driver. 1611 */ 1612static void 1613rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1614{ 1615 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1616 uint32_t tmp; 1617 1618 /* update all BBP registers that depend on the band */ 1619 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1620 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1621 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1622 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1623 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1624 } 1625 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1626 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1627 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1628 } 1629 1630 sc->bbp17 = bbp17; 1631 rum_bbp_write(sc, 17, bbp17); 1632 rum_bbp_write(sc, 96, bbp96); 1633 rum_bbp_write(sc, 104, bbp104); 1634 1635 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1636 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1637 rum_bbp_write(sc, 75, 0x80); 1638 rum_bbp_write(sc, 86, 0x80); 1639 rum_bbp_write(sc, 88, 0x80); 1640 } 1641 1642 rum_bbp_write(sc, 35, bbp35); 1643 rum_bbp_write(sc, 97, bbp97); 1644 rum_bbp_write(sc, 98, bbp98); 1645 1646 tmp = rum_read(sc, RT2573_PHY_CSR0); 1647 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1648 if (IEEE80211_IS_CHAN_2GHZ(c)) 1649 tmp |= RT2573_PA_PE_2GHZ; 1650 else 1651 tmp |= RT2573_PA_PE_5GHZ; 1652 rum_write(sc, RT2573_PHY_CSR0, tmp); 1653} 1654 1655static void 1656rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1657{ 1658 struct ifnet *ifp = sc->sc_ifp; 1659 struct ieee80211com *ic = ifp->if_l2com; 1660 const struct rfprog *rfprog; 1661 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1662 int8_t power; 1663 int i, chan; 1664 1665 chan = ieee80211_chan2ieee(ic, c); 1666 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1667 return; 1668 1669 /* select the appropriate RF settings based on what EEPROM says */ 1670 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1671 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1672 1673 /* find the settings for this channel (we know it exists) */ 1674 for (i = 0; rfprog[i].chan != chan; i++); 1675 1676 power = sc->txpow[i]; 1677 if (power < 0) { 1678 bbp94 += power; 1679 power = 0; 1680 } else if (power > 31) { 1681 bbp94 += power - 31; 1682 power = 31; 1683 } 1684 1685 /* 1686 * If we are switching from the 2GHz band to the 5GHz band or 1687 * vice-versa, BBP registers need to be reprogrammed. 1688 */ 1689 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1690 rum_select_band(sc, c); 1691 rum_select_antenna(sc); 1692 } 1693 ic->ic_curchan = c; 1694 1695 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1696 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1697 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1698 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1699 1700 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1701 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1702 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1703 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1704 1705 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1706 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1707 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1708 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1709 1710 rum_pause(sc, hz / 100); 1711 1712 /* enable smart mode for MIMO-capable RFs */ 1713 bbp3 = rum_bbp_read(sc, 3); 1714 1715 bbp3 &= ~RT2573_SMART_MODE; 1716 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1717 bbp3 |= RT2573_SMART_MODE; 1718 1719 rum_bbp_write(sc, 3, bbp3); 1720 1721 if (bbp94 != RT2573_BBPR94_DEFAULT) 1722 rum_bbp_write(sc, 94, bbp94); 1723} 1724 1725/* 1726 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1727 * and HostAP operating modes. 1728 */ 1729static void 1730rum_enable_tsf_sync(struct rum_softc *sc) 1731{ 1732 struct ifnet *ifp = sc->sc_ifp; 1733 struct ieee80211com *ic = ifp->if_l2com; 1734 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1735 uint32_t tmp; 1736 1737 if (vap->iv_opmode != IEEE80211_M_STA) { 1738 /* 1739 * Change default 16ms TBTT adjustment to 8ms. 1740 * Must be done before enabling beacon generation. 1741 */ 1742 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1743 } 1744 1745 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1746 1747 /* set beacon interval (in 1/16ms unit) */ 1748 tmp |= vap->iv_bss->ni_intval * 16; 1749 1750 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1751 if (vap->iv_opmode == IEEE80211_M_STA) 1752 tmp |= RT2573_TSF_MODE(1); 1753 else 1754 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1755 1756 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1757} 1758 1759static void 1760rum_update_slot(struct ifnet *ifp) 1761{ 1762 struct rum_softc *sc = ifp->if_softc; 1763 struct ieee80211com *ic = ifp->if_l2com; 1764 uint8_t slottime; 1765 uint32_t tmp; 1766 1767 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1768 1769 tmp = rum_read(sc, RT2573_MAC_CSR9); 1770 tmp = (tmp & ~0xff) | slottime; 1771 rum_write(sc, RT2573_MAC_CSR9, tmp); 1772 1773 DPRINTF("setting slot time to %uus\n", slottime); 1774} 1775 1776static void 1777rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1778{ 1779 uint32_t tmp; 1780 1781 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1782 rum_write(sc, RT2573_MAC_CSR4, tmp); 1783 1784 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1785 rum_write(sc, RT2573_MAC_CSR5, tmp); 1786} 1787 1788static void 1789rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1790{ 1791 uint32_t tmp; 1792 1793 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1794 rum_write(sc, RT2573_MAC_CSR2, tmp); 1795 1796 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1797 rum_write(sc, RT2573_MAC_CSR3, tmp); 1798} 1799 1800static void 1801rum_promisctask(struct usb2_proc_msg *pm) 1802{ 1803 struct rum_task *task = (struct rum_task *)pm; 1804 struct rum_softc *sc = task->sc; 1805 struct ifnet *ifp = sc->sc_ifp; 1806 uint32_t tmp; 1807 1808 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1809 1810 tmp &= ~RT2573_DROP_NOT_TO_ME; 1811 if (!(ifp->if_flags & IFF_PROMISC)) 1812 tmp |= RT2573_DROP_NOT_TO_ME; 1813 1814 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1815 1816 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1817 "entering" : "leaving"); 1818} 1819 1820static const char * 1821rum_get_rf(int rev) 1822{ 1823 switch (rev) { 1824 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1825 case RT2573_RF_2528: return "RT2528"; 1826 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1827 case RT2573_RF_5226: return "RT5226"; 1828 default: return "unknown"; 1829 } 1830} 1831 1832static void 1833rum_read_eeprom(struct rum_softc *sc) 1834{ 1835 uint16_t val; 1836#ifdef RUM_DEBUG 1837 int i; 1838#endif 1839 1840 /* read MAC address */ 1841 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1842 1843 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1844 val = le16toh(val); 1845 sc->rf_rev = (val >> 11) & 0x1f; 1846 sc->hw_radio = (val >> 10) & 0x1; 1847 sc->rx_ant = (val >> 4) & 0x3; 1848 sc->tx_ant = (val >> 2) & 0x3; 1849 sc->nb_ant = val & 0x3; 1850 1851 DPRINTF("RF revision=%d\n", sc->rf_rev); 1852 1853 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1854 val = le16toh(val); 1855 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1856 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1857 1858 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1859 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1860 1861 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1862 val = le16toh(val); 1863 if ((val & 0xff) != 0xff) 1864 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1865 1866 /* Only [-10, 10] is valid */ 1867 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1868 sc->rssi_2ghz_corr = 0; 1869 1870 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1871 val = le16toh(val); 1872 if ((val & 0xff) != 0xff) 1873 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1874 1875 /* Only [-10, 10] is valid */ 1876 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1877 sc->rssi_5ghz_corr = 0; 1878 1879 if (sc->ext_2ghz_lna) 1880 sc->rssi_2ghz_corr -= 14; 1881 if (sc->ext_5ghz_lna) 1882 sc->rssi_5ghz_corr -= 14; 1883 1884 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1885 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1886 1887 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1888 val = le16toh(val); 1889 if ((val & 0xff) != 0xff) 1890 sc->rffreq = val & 0xff; 1891 1892 DPRINTF("RF freq=%d\n", sc->rffreq); 1893 1894 /* read Tx power for all a/b/g channels */ 1895 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1896 /* XXX default Tx power for 802.11a channels */ 1897 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1898#ifdef RUM_DEBUG 1899 for (i = 0; i < 14; i++) 1900 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1901#endif 1902 1903 /* read default values for BBP registers */ 1904 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1905#ifdef RUM_DEBUG 1906 for (i = 0; i < 14; i++) { 1907 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1908 continue; 1909 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1910 sc->bbp_prom[i].val); 1911 } 1912#endif 1913} 1914 1915static int 1916rum_bbp_init(struct rum_softc *sc) 1917{ 1918#define N(a) (sizeof (a) / sizeof ((a)[0])) 1919 int i, ntries; 1920 1921 /* wait for BBP to be ready */ 1922 for (ntries = 0; ntries < 100; ntries++) { 1923 const uint8_t val = rum_bbp_read(sc, 0); 1924 if (val != 0 && val != 0xff) 1925 break; 1926 if (rum_pause(sc, hz / 100)) 1927 break; 1928 } 1929 if (ntries == 100) { 1930 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1931 return EIO; 1932 } 1933 1934 /* initialize BBP registers to default values */ 1935 for (i = 0; i < N(rum_def_bbp); i++) 1936 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1937 1938 /* write vendor-specific BBP values (from EEPROM) */ 1939 for (i = 0; i < 16; i++) { 1940 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1941 continue; 1942 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1943 } 1944 1945 return 0; 1946#undef N 1947} 1948 1949static void 1950rum_init_task(struct usb2_proc_msg *pm) 1951{ 1952#define N(a) (sizeof (a) / sizeof ((a)[0])) 1953 struct rum_task *task = (struct rum_task *)pm; 1954 struct rum_softc *sc = task->sc; 1955 struct ifnet *ifp = sc->sc_ifp; 1956 struct ieee80211com *ic = ifp->if_l2com; 1957 uint32_t tmp; 1958 usb2_error_t error; 1959 int i, ntries; 1960 1961 RUM_LOCK_ASSERT(sc, MA_OWNED); 1962 1963 rum_stop_task(pm); 1964 1965 /* initialize MAC registers to default values */ 1966 for (i = 0; i < N(rum_def_mac); i++) 1967 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1968 1969 /* set host ready */ 1970 rum_write(sc, RT2573_MAC_CSR1, 3); 1971 rum_write(sc, RT2573_MAC_CSR1, 0); 1972 1973 /* wait for BBP/RF to wakeup */ 1974 for (ntries = 0; ntries < 100; ntries++) { 1975 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1976 break; 1977 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1978 if (rum_pause(sc, hz / 100)) 1979 break; 1980 } 1981 if (ntries == 100) { 1982 device_printf(sc->sc_dev, 1983 "timeout waiting for BBP/RF to wakeup\n"); 1984 goto fail; 1985 } 1986 1987 if ((error = rum_bbp_init(sc)) != 0) 1988 goto fail; 1989 1990 /* select default channel */ 1991 rum_select_band(sc, ic->ic_curchan); 1992 rum_select_antenna(sc); 1993 rum_set_chan(sc, ic->ic_curchan); 1994 1995 /* clear STA registers */ 1996 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1997 1998 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 1999 rum_set_macaddr(sc, ic->ic_myaddr); 2000 2001 /* initialize ASIC */ 2002 rum_write(sc, RT2573_MAC_CSR1, 4); 2003 2004 /* 2005 * Allocate Tx and Rx xfer queues. 2006 */ 2007 rum_setup_tx_list(sc); 2008 2009 /* update Rx filter */ 2010 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2011 2012 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2013 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2014 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2015 RT2573_DROP_ACKCTS; 2016 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2017 tmp |= RT2573_DROP_TODS; 2018 if (!(ifp->if_flags & IFF_PROMISC)) 2019 tmp |= RT2573_DROP_NOT_TO_ME; 2020 } 2021 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2022 2023 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2024 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2025 usb2_transfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2026 usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2027 return; 2028 2029fail: rum_stop_task(pm); 2030#undef N 2031} 2032 2033static void 2034rum_init(void *priv) 2035{ 2036 struct rum_softc *sc = priv; 2037 struct ifnet *ifp = sc->sc_ifp; 2038 struct ieee80211com *ic = ifp->if_l2com; 2039 2040 RUM_LOCK(sc); 2041 rum_queue_command(sc, rum_init_task, 2042 &sc->sc_synctask[0].hdr, 2043 &sc->sc_synctask[1].hdr); 2044 RUM_UNLOCK(sc); 2045 2046 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2047 ieee80211_start_all(ic); /* start all vap's */ 2048} 2049 2050static void 2051rum_stop_task(struct usb2_proc_msg *pm) 2052{ 2053 struct rum_task *task = (struct rum_task *)pm; 2054 struct rum_softc *sc = task->sc; 2055 struct ifnet *ifp = sc->sc_ifp; 2056 uint32_t tmp; 2057 2058 RUM_LOCK_ASSERT(sc, MA_OWNED); 2059 2060 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2061 2062 RUM_UNLOCK(sc); 2063 2064 /* 2065 * Drain the USB transfers, if not already drained: 2066 */ 2067 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2068 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2069 2070 RUM_LOCK(sc); 2071 2072 rum_unsetup_tx_list(sc); 2073 2074 /* disable Rx */ 2075 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2076 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2077 2078 /* reset ASIC */ 2079 rum_write(sc, RT2573_MAC_CSR1, 3); 2080 rum_write(sc, RT2573_MAC_CSR1, 0); 2081} 2082 2083static int 2084rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size) 2085{ 2086 struct usb2_device_request req; 2087 uint16_t reg = RT2573_MCU_CODE_BASE; 2088 usb2_error_t error; 2089 2090 /* copy firmware image into NIC */ 2091 for (; size >= 4; reg += 4, ucode += 4, size -= 4) 2092 rum_write(sc, reg, UGETDW(ucode)); 2093 2094 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2095 req.bRequest = RT2573_MCU_CNTL; 2096 USETW(req.wValue, RT2573_MCU_RUN); 2097 USETW(req.wIndex, 0); 2098 USETW(req.wLength, 0); 2099 2100 error = rum_do_request(sc, &req, NULL); 2101 if (error != 0) { 2102 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2103 usb2_errstr(error)); 2104 } 2105 return error; 2106} 2107 2108static int 2109rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2110{ 2111 struct ieee80211com *ic = vap->iv_ic; 2112 const struct ieee80211_txparam *tp; 2113 struct rum_tx_desc desc; 2114 struct mbuf *m0; 2115 2116 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2117 if (m0 == NULL) { 2118 return ENOBUFS; 2119 } 2120 2121 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2122 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2123 m0->m_pkthdr.len, tp->mgmtrate); 2124 2125 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2126 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2127 2128 /* copy beacon header and payload into NIC memory */ 2129 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2130 m0->m_pkthdr.len); 2131 2132 m_freem(m0); 2133 2134 return 0; 2135} 2136 2137static int 2138rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2139 const struct ieee80211_bpf_params *params) 2140{ 2141 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2142 struct rum_softc *sc = ifp->if_softc; 2143 2144 RUM_LOCK(sc); 2145 /* prevent management frames from being sent if we're not ready */ 2146 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2147 RUM_UNLOCK(sc); 2148 m_freem(m); 2149 ieee80211_free_node(ni); 2150 return ENETDOWN; 2151 } 2152 if (sc->tx_nfree < RUM_TX_MINFREE) { 2153 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2154 RUM_UNLOCK(sc); 2155 m_freem(m); 2156 ieee80211_free_node(ni); 2157 return EIO; 2158 } 2159 2160 ifp->if_opackets++; 2161 2162 if (params == NULL) { 2163 /* 2164 * Legacy path; interpret frame contents to decide 2165 * precisely how to send the frame. 2166 */ 2167 if (rum_tx_mgt(sc, m, ni) != 0) 2168 goto bad; 2169 } else { 2170 /* 2171 * Caller supplied explicit parameters to use in 2172 * sending the frame. 2173 */ 2174 if (rum_tx_raw(sc, m, ni, params) != 0) 2175 goto bad; 2176 } 2177 RUM_UNLOCK(sc); 2178 2179 return 0; 2180bad: 2181 ifp->if_oerrors++; 2182 RUM_UNLOCK(sc); 2183 ieee80211_free_node(ni); 2184 return EIO; 2185} 2186 2187static void 2188rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2189{ 2190 struct ieee80211vap *vap = ni->ni_vap; 2191 struct rum_vap *rvp = RUM_VAP(vap); 2192 2193 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2194 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2195 2196 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2197 2198 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2199} 2200 2201static void 2202rum_amrr_timeout(void *arg) 2203{ 2204 struct rum_vap *rvp = arg; 2205 struct rum_softc *sc = rvp->sc; 2206 2207 rum_queue_command(sc, rum_amrr_task, 2208 &rvp->amrr_task[0].hdr, &rvp->amrr_task[1].hdr); 2209} 2210 2211static void 2212rum_amrr_task(struct usb2_proc_msg *pm) 2213{ 2214 struct rum_task *task = (struct rum_task *)pm; 2215 struct rum_softc *sc = task->sc; 2216 struct ifnet *ifp = sc->sc_ifp; 2217 struct ieee80211com *ic = ifp->if_l2com; 2218 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2219 struct rum_vap *rvp = RUM_VAP(vap); 2220 struct ieee80211_node *ni = vap->iv_bss; 2221 int ok, fail; 2222 2223 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2224 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2225 2226 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2227 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2228 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2229 2230 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2231 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2232 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2233 2234 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2235 2236 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2237} 2238 2239/* ARGUSED */ 2240static struct ieee80211_node * 2241rum_node_alloc(struct ieee80211vap *vap __unused, 2242 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2243{ 2244 struct rum_node *rn; 2245 2246 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2247 return rn != NULL ? &rn->ni : NULL; 2248} 2249 2250static void 2251rum_newassoc(struct ieee80211_node *ni, int isnew) 2252{ 2253 struct ieee80211vap *vap = ni->ni_vap; 2254 2255 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2256} 2257 2258static void 2259rum_scan_start(struct ieee80211com *ic) 2260{ 2261 struct rum_softc *sc = ic->ic_ifp->if_softc; 2262 2263 RUM_LOCK(sc); 2264 /* do it in a process context */ 2265 sc->sc_scan_action = RUM_SCAN_START; 2266 rum_queue_command(sc, rum_scantask, 2267 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2268 RUM_UNLOCK(sc); 2269 2270} 2271 2272static void 2273rum_scan_end(struct ieee80211com *ic) 2274{ 2275 struct rum_softc *sc = ic->ic_ifp->if_softc; 2276 2277 RUM_LOCK(sc); 2278 /* do it in a process context */ 2279 sc->sc_scan_action = RUM_SCAN_END; 2280 rum_queue_command(sc, rum_scantask, 2281 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2282 RUM_UNLOCK(sc); 2283 2284} 2285 2286static void 2287rum_set_channel(struct ieee80211com *ic) 2288{ 2289 struct rum_softc *sc = ic->ic_ifp->if_softc; 2290 2291 RUM_LOCK(sc); 2292 /* do it in a process context */ 2293 sc->sc_scan_action = RUM_SET_CHANNEL; 2294 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 2295 rum_queue_command(sc, rum_scantask, 2296 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2297 RUM_UNLOCK(sc); 2298} 2299 2300static void 2301rum_scantask(struct usb2_proc_msg *pm) 2302{ 2303 struct rum_task *task = (struct rum_task *)pm; 2304 struct rum_softc *sc = task->sc; 2305 struct ifnet *ifp = sc->sc_ifp; 2306 struct ieee80211com *ic = ifp->if_l2com; 2307 uint32_t tmp; 2308 2309 RUM_LOCK_ASSERT(sc, MA_OWNED); 2310 2311 switch (sc->sc_scan_action) { 2312 case RUM_SCAN_START: 2313 /* abort TSF synchronization */ 2314 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2315 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2316 rum_set_bssid(sc, ifp->if_broadcastaddr); 2317 break; 2318 2319 case RUM_SET_CHANNEL: 2320 rum_set_chan(sc, ic->ic_curchan); 2321 break; 2322 2323 default: /* RUM_SCAN_END */ 2324 rum_enable_tsf_sync(sc); 2325 rum_set_bssid(sc, sc->sc_bssid); 2326 break; 2327 } 2328} 2329 2330static int 2331rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2332{ 2333 struct ifnet *ifp = sc->sc_ifp; 2334 struct ieee80211com *ic = ifp->if_l2com; 2335 int lna, agc, rssi; 2336 2337 lna = (raw >> 5) & 0x3; 2338 agc = raw & 0x1f; 2339 2340 if (lna == 0) { 2341 /* 2342 * No RSSI mapping 2343 * 2344 * NB: Since RSSI is relative to noise floor, -1 is 2345 * adequate for caller to know error happened. 2346 */ 2347 return -1; 2348 } 2349 2350 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2351 2352 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2353 rssi += sc->rssi_2ghz_corr; 2354 2355 if (lna == 1) 2356 rssi -= 64; 2357 else if (lna == 2) 2358 rssi -= 74; 2359 else if (lna == 3) 2360 rssi -= 90; 2361 } else { 2362 rssi += sc->rssi_5ghz_corr; 2363 2364 if (!sc->ext_5ghz_lna && lna != 1) 2365 rssi += 4; 2366 2367 if (lna == 1) 2368 rssi -= 64; 2369 else if (lna == 2) 2370 rssi -= 86; 2371 else if (lna == 3) 2372 rssi -= 100; 2373 } 2374 return rssi; 2375} 2376 2377static int 2378rum_pause(struct rum_softc *sc, int timeout) 2379{ 2380 if (usb2_proc_is_gone(&sc->sc_tq)) 2381 return (1); 2382 2383 usb2_pause_mtx(&sc->sc_mtx, timeout); 2384 return (0); 2385} 2386 2387static void 2388rum_queue_command(struct rum_softc *sc, usb2_proc_callback_t *fn, 2389 struct usb2_proc_msg *t0, struct usb2_proc_msg *t1) 2390{ 2391 struct rum_task *task; 2392 2393 RUM_LOCK_ASSERT(sc, MA_OWNED); 2394 2395 if (usb2_proc_is_gone(&sc->sc_tq)) { 2396 DPRINTF("proc is gone\n"); 2397 return; /* nothing to do */ 2398 } 2399 /* 2400 * NOTE: The task cannot get executed before we drop the 2401 * "sc_mtx" mutex. It is safe to update fields in the message 2402 * structure after that the message got queued. 2403 */ 2404 task = (struct rum_task *) 2405 usb2_proc_msignal(&sc->sc_tq, t0, t1); 2406 2407 /* Setup callback and softc pointers */ 2408 task->hdr.pm_callback = fn; 2409 task->sc = sc; 2410 2411 /* 2412 * Init and stop must be synchronous! 2413 */ 2414 if ((fn == rum_init_task) || (fn == rum_stop_task)) 2415 usb2_proc_mwait(&sc->sc_tq, t0, t1); 2416} 2417 2418static device_method_t rum_methods[] = { 2419 /* Device interface */ 2420 DEVMETHOD(device_probe, rum_match), 2421 DEVMETHOD(device_attach, rum_attach), 2422 DEVMETHOD(device_detach, rum_detach), 2423 2424 { 0, 0 } 2425}; 2426 2427static driver_t rum_driver = { 2428 .name = "rum", 2429 .methods = rum_methods, 2430 .size = sizeof(struct rum_softc), 2431}; 2432 2433static devclass_t rum_devclass; 2434 2435DRIVER_MODULE(rum, ushub, rum_driver, rum_devclass, NULL, 0); 2436