if_rum.c revision 190734
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 190734 2009-04-05 18:20:38Z 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 190734 2009-04-05 18:20:38Z thompsa $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include "usbdevs.h" 30#include <dev/usb/usb.h> 31#include <dev/usb/usb_mfunc.h> 32#include <dev/usb/usb_error.h> 33 34#define USB_DEBUG_VAR rum_debug 35 36#include <dev/usb/usb_core.h> 37#include <dev/usb/usb_lookup.h> 38#include <dev/usb/usb_process.h> 39#include <dev/usb/usb_debug.h> 40#include <dev/usb/usb_request.h> 41#include <dev/usb/usb_busdma.h> 42#include <dev/usb/usb_util.h> 43 44#include <dev/usb/wlan/usb_wlan.h> 45#include <dev/usb/wlan/if_rumreg.h> 46#include <dev/usb/wlan/if_rumvar.h> 47#include <dev/usb/wlan/if_rumfw.h> 48 49#if USB_DEBUG 50static int rum_debug = 0; 51 52SYSCTL_NODE(_hw_usb2, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 53SYSCTL_INT(_hw_usb2_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 54 "Debug level"); 55#endif 56 57static const struct usb2_device_id rum_devs[] = { 58 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) }, 59 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) }, 60 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3) }, 61 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4) }, 62 { USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700) }, 63 { USB_VP(USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO) }, 64 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1) }, 65 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2) }, 66 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A) }, 67 { USB_VP(USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3) }, 68 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC) }, 69 { USB_VP(USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR) }, 70 { USB_VP(USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2) }, 71 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GL) }, 72 { USB_VP(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GPX) }, 73 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F) }, 74 { USB_VP(USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573) }, 75 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1) }, 76 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340) }, 77 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA111) }, 78 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA110) }, 79 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS) }, 80 { USB_VP(USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS) }, 81 { USB_VP(USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573) }, 82 { USB_VP(USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573) }, 83 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB) }, 84 { USB_VP(USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP) }, 85 { USB_VP(USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G) }, 86 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP) }, 87 { USB_VP(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP) }, 88 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1) }, 89 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2) }, 90 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3) }, 91 { USB_VP(USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4) }, 92 { USB_VP(USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573) }, 93 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP) }, 94 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2) }, 95 { USB_VP(USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM) }, 96 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573) }, 97 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2) }, 98 { USB_VP(USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_3) }, 99 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573) }, 100 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2) }, 101 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671) }, 102 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2) }, 103 { USB_VP(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172) }, 104 { USB_VP(USB_VENDOR_SPARKLAN, USB_PRODUCT_SPARKLAN_RT2573) }, 105 { USB_VP(USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573) }, 106}; 107 108MODULE_DEPEND(rum, wlan, 1, 1, 1); 109MODULE_DEPEND(rum, wlan_amrr, 1, 1, 1); 110MODULE_DEPEND(rum, usb, 1, 1, 1); 111 112static device_probe_t rum_match; 113static device_attach_t rum_attach; 114static device_detach_t rum_detach; 115 116static usb2_callback_t rum_bulk_read_callback; 117static usb2_callback_t rum_bulk_write_callback; 118 119static usb2_proc_callback_t rum_command_wrapper; 120static usb2_proc_callback_t rum_attach_post; 121static usb2_proc_callback_t rum_task; 122static usb2_proc_callback_t rum_scantask; 123static usb2_proc_callback_t rum_promisctask; 124static usb2_proc_callback_t rum_amrr_task; 125static usb2_proc_callback_t rum_init_task; 126static usb2_proc_callback_t rum_stop_task; 127static usb2_proc_callback_t rum_flush_task; 128 129static usb2_error_t rum_do_request(struct rum_softc *sc, 130 struct usb2_device_request *req, void *data); 131static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 132 const char name[IFNAMSIZ], int unit, int opmode, 133 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 134 const uint8_t mac[IEEE80211_ADDR_LEN]); 135static void rum_vap_delete(struct ieee80211vap *); 136static void rum_tx_free(struct rum_tx_data *, int); 137static void rum_setup_tx_list(struct rum_softc *); 138static void rum_unsetup_tx_list(struct rum_softc *); 139static int rum_newstate(struct ieee80211vap *, 140 enum ieee80211_state, int); 141static void rum_setup_tx_desc(struct rum_softc *, 142 struct rum_tx_desc *, uint32_t, uint16_t, int, 143 int); 144static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 145 struct ieee80211_node *); 146static int rum_tx_raw(struct rum_softc *, struct mbuf *, 147 struct ieee80211_node *, 148 const struct ieee80211_bpf_params *); 149static int rum_tx_data(struct rum_softc *, struct mbuf *, 150 struct ieee80211_node *); 151static void rum_start(struct ifnet *); 152static int rum_ioctl(struct ifnet *, u_long, caddr_t); 153static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 154 int); 155static uint32_t rum_read(struct rum_softc *, uint16_t); 156static void rum_read_multi(struct rum_softc *, uint16_t, void *, 157 int); 158static usb2_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 159static usb2_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 160 size_t); 161static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 162static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 163static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 164static void rum_select_antenna(struct rum_softc *); 165static void rum_enable_mrr(struct rum_softc *); 166static void rum_set_txpreamble(struct rum_softc *); 167static void rum_set_basicrates(struct rum_softc *); 168static void rum_select_band(struct rum_softc *, 169 struct ieee80211_channel *); 170static void rum_set_chan(struct rum_softc *, 171 struct ieee80211_channel *); 172static void rum_enable_tsf_sync(struct rum_softc *); 173static void rum_update_slot(struct ifnet *); 174static void rum_set_bssid(struct rum_softc *, const uint8_t *); 175static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 176static void rum_update_promisc(struct ifnet *); 177static const char *rum_get_rf(int); 178static void rum_read_eeprom(struct rum_softc *); 179static int rum_bbp_init(struct rum_softc *); 180static void rum_init(void *); 181static void rum_load_microcode(struct rum_softc *, const uint8_t *, 182 size_t); 183static int rum_prepare_beacon(struct rum_softc *, 184 struct ieee80211vap *); 185static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 186 const struct ieee80211_bpf_params *); 187static struct ieee80211_node *rum_node_alloc(struct ieee80211vap *, 188 const uint8_t mac[IEEE80211_ADDR_LEN]); 189static void rum_newassoc(struct ieee80211_node *, int); 190static void rum_scan_start(struct ieee80211com *); 191static void rum_scan_end(struct ieee80211com *); 192static void rum_set_channel(struct ieee80211com *); 193static int rum_get_rssi(struct rum_softc *, uint8_t); 194static void rum_amrr_start(struct rum_softc *, 195 struct ieee80211_node *); 196static void rum_amrr_timeout(void *); 197static int rum_pause(struct rum_softc *, int); 198static void rum_queue_command(struct rum_softc *, 199 usb2_proc_callback_t *, struct usb2_proc_msg *, 200 struct usb2_proc_msg *); 201 202static const struct { 203 uint32_t reg; 204 uint32_t val; 205} rum_def_mac[] = { 206 { RT2573_TXRX_CSR0, 0x025fb032 }, 207 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 208 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 209 { RT2573_TXRX_CSR3, 0x00858687 }, 210 { RT2573_TXRX_CSR7, 0x2e31353b }, 211 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 212 { RT2573_TXRX_CSR15, 0x0000000f }, 213 { RT2573_MAC_CSR6, 0x00000fff }, 214 { RT2573_MAC_CSR8, 0x016c030a }, 215 { RT2573_MAC_CSR10, 0x00000718 }, 216 { RT2573_MAC_CSR12, 0x00000004 }, 217 { RT2573_MAC_CSR13, 0x00007f00 }, 218 { RT2573_SEC_CSR0, 0x00000000 }, 219 { RT2573_SEC_CSR1, 0x00000000 }, 220 { RT2573_SEC_CSR5, 0x00000000 }, 221 { RT2573_PHY_CSR1, 0x000023b0 }, 222 { RT2573_PHY_CSR5, 0x00040a06 }, 223 { RT2573_PHY_CSR6, 0x00080606 }, 224 { RT2573_PHY_CSR7, 0x00000408 }, 225 { RT2573_AIFSN_CSR, 0x00002273 }, 226 { RT2573_CWMIN_CSR, 0x00002344 }, 227 { RT2573_CWMAX_CSR, 0x000034aa } 228}; 229 230static const struct { 231 uint8_t reg; 232 uint8_t val; 233} rum_def_bbp[] = { 234 { 3, 0x80 }, 235 { 15, 0x30 }, 236 { 17, 0x20 }, 237 { 21, 0xc8 }, 238 { 22, 0x38 }, 239 { 23, 0x06 }, 240 { 24, 0xfe }, 241 { 25, 0x0a }, 242 { 26, 0x0d }, 243 { 32, 0x0b }, 244 { 34, 0x12 }, 245 { 37, 0x07 }, 246 { 39, 0xf8 }, 247 { 41, 0x60 }, 248 { 53, 0x10 }, 249 { 54, 0x18 }, 250 { 60, 0x10 }, 251 { 61, 0x04 }, 252 { 62, 0x04 }, 253 { 75, 0xfe }, 254 { 86, 0xfe }, 255 { 88, 0xfe }, 256 { 90, 0x0f }, 257 { 99, 0x00 }, 258 { 102, 0x16 }, 259 { 107, 0x04 } 260}; 261 262static const struct rfprog { 263 uint8_t chan; 264 uint32_t r1, r2, r3, r4; 265} rum_rf5226[] = { 266 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 267 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 268 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 269 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 270 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 271 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 272 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 273 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 274 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 275 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 276 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 277 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 278 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 279 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 280 281 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 282 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 283 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 284 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 285 286 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 287 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 288 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 289 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 290 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 291 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 292 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 293 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 294 295 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 296 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 297 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 298 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 299 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 300 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 301 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 302 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 303 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 304 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 305 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 306 307 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 308 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 309 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 310 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 311 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 312}, rum_rf5225[] = { 313 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 314 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 315 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 316 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 317 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 318 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 319 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 320 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 321 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 322 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 323 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 324 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 325 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 326 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 327 328 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 329 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 330 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 331 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 332 333 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 334 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 335 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 336 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 337 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 338 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 339 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 340 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 341 342 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 343 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 344 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 345 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 346 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 347 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 348 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 349 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 350 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 351 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 352 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 353 354 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 355 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 356 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 357 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 358 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 359}; 360 361static const struct usb2_config rum_config[RUM_N_TRANSFER] = { 362 [RUM_BULK_WR] = { 363 .type = UE_BULK, 364 .endpoint = UE_ADDR_ANY, 365 .direction = UE_DIR_OUT, 366 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 367 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 368 .callback = rum_bulk_write_callback, 369 .timeout = 5000, /* ms */ 370 }, 371 [RUM_BULK_RD] = { 372 .type = UE_BULK, 373 .endpoint = UE_ADDR_ANY, 374 .direction = UE_DIR_IN, 375 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 376 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 377 .callback = rum_bulk_read_callback, 378 }, 379}; 380 381static int 382rum_match(device_t self) 383{ 384 struct usb2_attach_arg *uaa = device_get_ivars(self); 385 386 if (uaa->usb2_mode != USB_MODE_HOST) 387 return (ENXIO); 388 if (uaa->info.bConfigIndex != 0) 389 return (ENXIO); 390 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 391 return (ENXIO); 392 393 return (usb2_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 394} 395 396static int 397rum_attach(device_t self) 398{ 399 struct usb2_attach_arg *uaa = device_get_ivars(self); 400 struct rum_softc *sc = device_get_softc(self); 401 uint8_t iface_index; 402 int error; 403 404 device_set_usb2_desc(self); 405 sc->sc_udev = uaa->device; 406 sc->sc_dev = self; 407 408 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 409 MTX_NETWORK_LOCK, MTX_DEF); 410 411 cv_init(&sc->sc_cmd_cv, "wtxdone"); 412 413 iface_index = RT2573_IFACE_INDEX; 414 error = usb2_transfer_setup(uaa->device, &iface_index, 415 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 416 if (error) { 417 device_printf(self, "could not allocate USB transfers, " 418 "err=%s\n", usb2_errstr(error)); 419 goto detach; 420 } 421 error = usb2_proc_create(&sc->sc_tq, &sc->sc_mtx, 422 device_get_nameunit(self), USB_PRI_MED); 423 if (error) { 424 device_printf(self, "could not setup config thread!\n"); 425 goto detach; 426 } 427 428 /* fork rest of the attach code */ 429 RUM_LOCK(sc); 430 rum_queue_command(sc, rum_attach_post, 431 &sc->sc_synctask[0].hdr, 432 &sc->sc_synctask[1].hdr); 433 RUM_UNLOCK(sc); 434 return (0); 435 436detach: 437 rum_detach(self); 438 return (ENXIO); /* failure */ 439} 440 441static void 442rum_attach_post(struct usb2_proc_msg *pm) 443{ 444 struct rum_task *task = (struct rum_task *)pm; 445 struct rum_softc *sc = task->sc; 446 struct ifnet *ifp; 447 struct ieee80211com *ic; 448 unsigned int ntries; 449 uint32_t tmp; 450 uint8_t bands; 451 452 /* retrieve RT2573 rev. no */ 453 for (ntries = 0; ntries < 100; ntries++) { 454 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 455 break; 456 if (rum_pause(sc, hz / 100)) 457 break; 458 } 459 if (ntries == 100) { 460 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 461 return; 462 } 463 464 /* retrieve MAC address and various other things from EEPROM */ 465 rum_read_eeprom(sc); 466 467 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 468 tmp, rum_get_rf(sc->rf_rev)); 469 470 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 471 472 /* XXX Async attach race */ 473 if (usb2_proc_is_gone(&sc->sc_tq)) 474 return; 475 476 RUM_UNLOCK(sc); 477 478 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 479 if (ifp == NULL) { 480 device_printf(sc->sc_dev, "can not if_alloc()\n"); 481 RUM_LOCK(sc); 482 return; 483 } 484 ic = ifp->if_l2com; 485 486 ifp->if_softc = sc; 487 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 488 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 489 ifp->if_init = rum_init; 490 ifp->if_ioctl = rum_ioctl; 491 ifp->if_start = rum_start; 492 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 493 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 494 IFQ_SET_READY(&ifp->if_snd); 495 496 ic->ic_ifp = ifp; 497 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 498 499 /* set device capabilities */ 500 ic->ic_caps = 501 IEEE80211_C_STA /* station mode supported */ 502 | IEEE80211_C_IBSS /* IBSS mode supported */ 503 | IEEE80211_C_MONITOR /* monitor mode supported */ 504 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 505 | IEEE80211_C_TXPMGT /* tx power management */ 506 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 507 | IEEE80211_C_SHSLOT /* short slot time supported */ 508 | IEEE80211_C_BGSCAN /* bg scanning supported */ 509 | IEEE80211_C_WPA /* 802.11i */ 510 ; 511 512 bands = 0; 513 setbit(&bands, IEEE80211_MODE_11B); 514 setbit(&bands, IEEE80211_MODE_11G); 515 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 516 setbit(&bands, IEEE80211_MODE_11A); 517 ieee80211_init_channels(ic, NULL, &bands); 518 519 ieee80211_ifattach(ic, sc->sc_bssid); 520 ic->ic_update_promisc = rum_update_promisc; 521 ic->ic_newassoc = rum_newassoc; 522 ic->ic_raw_xmit = rum_raw_xmit; 523 ic->ic_node_alloc = rum_node_alloc; 524 ic->ic_scan_start = rum_scan_start; 525 ic->ic_scan_end = rum_scan_end; 526 ic->ic_set_channel = rum_set_channel; 527 528 ic->ic_vap_create = rum_vap_create; 529 ic->ic_vap_delete = rum_vap_delete; 530 531 bpfattach(ifp, DLT_IEEE802_11_RADIO, 532 sizeof (struct ieee80211_frame) + sizeof(sc->sc_txtap)); 533 534 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 535 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 536 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 537 538 sc->sc_txtap_len = sizeof sc->sc_txtap; 539 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 540 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 541 542 if (bootverbose) 543 ieee80211_announce(ic); 544 545 RUM_LOCK(sc); 546} 547 548static int 549rum_detach(device_t self) 550{ 551 struct rum_softc *sc = device_get_softc(self); 552 struct ifnet *ifp = sc->sc_ifp; 553 struct ieee80211com *ic; 554 555 /* wait for any post attach or other command to complete */ 556 usb2_proc_drain(&sc->sc_tq); 557 558 /* stop all USB transfers */ 559 usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 560 usb2_proc_free(&sc->sc_tq); 561 562 /* free TX list, if any */ 563 RUM_LOCK(sc); 564 rum_unsetup_tx_list(sc); 565 RUM_UNLOCK(sc); 566 567 if (ifp) { 568 ic = ifp->if_l2com; 569 bpfdetach(ifp); 570 ieee80211_ifdetach(ic); 571 if_free(ifp); 572 } 573 cv_destroy(&sc->sc_cmd_cv); 574 mtx_destroy(&sc->sc_mtx); 575 576 return (0); 577} 578 579static usb2_error_t 580rum_do_request(struct rum_softc *sc, 581 struct usb2_device_request *req, void *data) 582{ 583 usb2_error_t err; 584 int ntries = 10; 585 586 while (ntries--) { 587 err = usb2_do_request_proc(sc->sc_udev, &sc->sc_tq, 588 req, data, 0, NULL, 250 /* ms */); 589 if (err == 0) 590 break; 591 592 DPRINTFN(1, "Control request failed, %s (retrying)\n", 593 usb2_errstr(err)); 594 if (rum_pause(sc, hz / 100)) 595 break; 596 } 597 return (err); 598} 599 600static struct ieee80211vap * 601rum_vap_create(struct ieee80211com *ic, 602 const char name[IFNAMSIZ], int unit, int opmode, int flags, 603 const uint8_t bssid[IEEE80211_ADDR_LEN], 604 const uint8_t mac[IEEE80211_ADDR_LEN]) 605{ 606 struct rum_softc *sc = ic->ic_ifp->if_softc; 607 struct rum_vap *rvp; 608 struct ieee80211vap *vap; 609 610 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 611 return NULL; 612 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 613 M_80211_VAP, M_NOWAIT | M_ZERO); 614 if (rvp == NULL) 615 return NULL; 616 vap = &rvp->vap; 617 /* enable s/w bmiss handling for sta mode */ 618 ieee80211_vap_setup(ic, vap, name, unit, opmode, 619 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 620 621 /* override state transition machine */ 622 rvp->newstate = vap->iv_newstate; 623 vap->iv_newstate = rum_newstate; 624 625 rvp->sc = sc; 626 usb2_callout_init_mtx(&rvp->amrr_ch, &sc->sc_mtx, 0); 627 ieee80211_amrr_init(&rvp->amrr, vap, 628 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 629 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 630 1000 /* 1 sec */); 631 632 /* complete setup */ 633 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 634 ic->ic_opmode = opmode; 635 return vap; 636} 637 638static void 639rum_flush_task(struct usb2_proc_msg *pm) 640{ 641 /* Nothing to do */ 642} 643 644static void 645rum_vap_delete(struct ieee80211vap *vap) 646{ 647 struct rum_vap *rvp = RUM_VAP(vap); 648 struct rum_softc *sc = rvp->sc; 649 650 RUM_LOCK(sc); 651 /* wait for any pending tasks to complete */ 652 rum_queue_command(sc, rum_flush_task, 653 &sc->sc_synctask[0].hdr, 654 &sc->sc_synctask[1].hdr); 655 RUM_UNLOCK(sc); 656 657 usb2_callout_drain(&rvp->amrr_ch); 658 ieee80211_amrr_cleanup(&rvp->amrr); 659 ieee80211_vap_detach(vap); 660 free(rvp, M_80211_VAP); 661} 662 663static void 664rum_tx_free(struct rum_tx_data *data, int txerr) 665{ 666 struct rum_softc *sc = data->sc; 667 668 if (data->m != NULL) { 669 if (data->m->m_flags & M_TXCB) 670 ieee80211_process_callback(data->ni, data->m, 671 txerr ? ETIMEDOUT : 0); 672 m_freem(data->m); 673 data->m = NULL; 674 675 ieee80211_free_node(data->ni); 676 data->ni = NULL; 677 } 678 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 679 sc->tx_nfree++; 680} 681 682static void 683rum_setup_tx_list(struct rum_softc *sc) 684{ 685 struct rum_tx_data *data; 686 int i; 687 688 sc->tx_nfree = 0; 689 STAILQ_INIT(&sc->tx_q); 690 STAILQ_INIT(&sc->tx_free); 691 692 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 693 data = &sc->tx_data[i]; 694 695 data->sc = sc; 696 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 697 sc->tx_nfree++; 698 } 699} 700 701static void 702rum_unsetup_tx_list(struct rum_softc *sc) 703{ 704 struct rum_tx_data *data; 705 int i; 706 707 /* make sure any subsequent use of the queues will fail */ 708 sc->tx_nfree = 0; 709 STAILQ_INIT(&sc->tx_q); 710 STAILQ_INIT(&sc->tx_free); 711 712 /* free up all node references and mbufs */ 713 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 714 data = &sc->tx_data[i]; 715 716 if (data->m != NULL) { 717 m_freem(data->m); 718 data->m = NULL; 719 } 720 if (data->ni != NULL) { 721 ieee80211_free_node(data->ni); 722 data->ni = NULL; 723 } 724 } 725} 726 727static void 728rum_task(struct usb2_proc_msg *pm) 729{ 730 struct rum_task *task = (struct rum_task *)pm; 731 struct rum_softc *sc = task->sc; 732 struct ifnet *ifp = sc->sc_ifp; 733 struct ieee80211com *ic = ifp->if_l2com; 734 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 735 struct rum_vap *rvp = RUM_VAP(vap); 736 const struct ieee80211_txparam *tp; 737 enum ieee80211_state ostate; 738 struct ieee80211_node *ni; 739 uint32_t tmp; 740 741 ostate = vap->iv_state; 742 743 switch (sc->sc_state) { 744 case IEEE80211_S_INIT: 745 if (ostate == IEEE80211_S_RUN) { 746 /* abort TSF synchronization */ 747 tmp = rum_read(sc, RT2573_TXRX_CSR9); 748 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 749 } 750 break; 751 752 case IEEE80211_S_RUN: 753 ni = vap->iv_bss; 754 755 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 756 rum_update_slot(ic->ic_ifp); 757 rum_enable_mrr(sc); 758 rum_set_txpreamble(sc); 759 rum_set_basicrates(sc); 760 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 761 rum_set_bssid(sc, sc->sc_bssid); 762 } 763 764 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 765 vap->iv_opmode == IEEE80211_M_IBSS) 766 rum_prepare_beacon(sc, vap); 767 768 if (vap->iv_opmode != IEEE80211_M_MONITOR) 769 rum_enable_tsf_sync(sc); 770 771 /* enable automatic rate adaptation */ 772 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 773 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 774 rum_amrr_start(sc, ni); 775 break; 776 default: 777 break; 778 } 779 780 RUM_UNLOCK(sc); 781 IEEE80211_LOCK(ic); 782 rvp->newstate(vap, sc->sc_state, sc->sc_arg); 783 if (vap->iv_newstate_cb != NULL) 784 vap->iv_newstate_cb(vap, sc->sc_state, sc->sc_arg); 785 IEEE80211_UNLOCK(ic); 786 RUM_LOCK(sc); 787} 788 789static int 790rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 791{ 792 struct rum_vap *rvp = RUM_VAP(vap); 793 struct ieee80211com *ic = vap->iv_ic; 794 struct rum_softc *sc = ic->ic_ifp->if_softc; 795 796 DPRINTF("%s -> %s\n", 797 ieee80211_state_name[vap->iv_state], 798 ieee80211_state_name[nstate]); 799 800 RUM_LOCK(sc); 801 usb2_callout_stop(&rvp->amrr_ch); 802 803 /* do it in a process context */ 804 sc->sc_state = nstate; 805 sc->sc_arg = arg; 806 RUM_UNLOCK(sc); 807 808 if (nstate == IEEE80211_S_INIT) { 809 rvp->newstate(vap, nstate, arg); 810 return 0; 811 } else { 812 RUM_LOCK(sc); 813 rum_queue_command(sc, rum_task, &sc->sc_task[0].hdr, 814 &sc->sc_task[1].hdr); 815 RUM_UNLOCK(sc); 816 return EINPROGRESS; 817 } 818} 819 820static void 821rum_bulk_write_callback(struct usb2_xfer *xfer) 822{ 823 struct rum_softc *sc = xfer->priv_sc; 824 struct ifnet *ifp = sc->sc_ifp; 825 struct ieee80211com *ic = ifp->if_l2com; 826 struct ieee80211_channel *c = ic->ic_curchan; 827 struct rum_tx_data *data; 828 struct mbuf *m; 829 unsigned int len; 830 831 /* wakeup waiting command, if any */ 832 if (sc->sc_last_task != NULL) 833 cv_signal(&sc->sc_cmd_cv); 834 835 switch (USB_GET_STATE(xfer)) { 836 case USB_ST_TRANSFERRED: 837 DPRINTFN(11, "transfer complete, %d bytes\n", xfer->actlen); 838 839 /* free resources */ 840 data = xfer->priv_fifo; 841 rum_tx_free(data, 0); 842 xfer->priv_fifo = NULL; 843 844 ifp->if_opackets++; 845 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 846 847 /* FALLTHROUGH */ 848 case USB_ST_SETUP: 849tr_setup: 850 /* wait for command to complete, if any */ 851 if (sc->sc_last_task != NULL) 852 break; 853 854 data = STAILQ_FIRST(&sc->tx_q); 855 if (data) { 856 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 857 m = data->m; 858 859 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 860 DPRINTFN(0, "data overflow, %u bytes\n", 861 m->m_pkthdr.len); 862 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 863 } 864 usb2_copy_in(xfer->frbuffers, 0, &data->desc, 865 RT2573_TX_DESC_SIZE); 866 usb2_m_copy_in(xfer->frbuffers, RT2573_TX_DESC_SIZE, m, 867 0, m->m_pkthdr.len); 868 869 if (bpf_peers_present(ifp->if_bpf)) { 870 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 871 872 tap->wt_flags = 0; 873 tap->wt_rate = data->rate; 874 tap->wt_chan_freq = htole16(c->ic_freq); 875 tap->wt_chan_flags = htole16(c->ic_flags); 876 tap->wt_antenna = sc->tx_ant; 877 878 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m); 879 } 880 881 /* align end on a 4-bytes boundary */ 882 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 883 if ((len % 64) == 0) 884 len += 4; 885 886 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 887 m->m_pkthdr.len, len); 888 889 xfer->frlengths[0] = len; 890 xfer->priv_fifo = data; 891 892 usb2_start_hardware(xfer); 893 } 894 break; 895 896 default: /* Error */ 897 DPRINTFN(11, "transfer error, %s\n", 898 usb2_errstr(xfer->error)); 899 900 ifp->if_oerrors++; 901 data = xfer->priv_fifo; 902 if (data != NULL) { 903 rum_tx_free(data, xfer->error); 904 xfer->priv_fifo = NULL; 905 } 906 907 if (xfer->error == USB_ERR_STALLED) { 908 /* try to clear stall first */ 909 xfer->flags.stall_pipe = 1; 910 goto tr_setup; 911 } 912 if (xfer->error == USB_ERR_TIMEOUT) 913 device_printf(sc->sc_dev, "device timeout\n"); 914 break; 915 } 916} 917 918static void 919rum_bulk_read_callback(struct usb2_xfer *xfer) 920{ 921 struct rum_softc *sc = xfer->priv_sc; 922 struct ifnet *ifp = sc->sc_ifp; 923 struct ieee80211com *ic = ifp->if_l2com; 924 struct ieee80211_node *ni; 925 struct mbuf *m = NULL; 926 uint32_t flags; 927 uint8_t rssi = 0; 928 unsigned int len; 929 930 switch (USB_GET_STATE(xfer)) { 931 case USB_ST_TRANSFERRED: 932 933 DPRINTFN(15, "rx done, actlen=%d\n", xfer->actlen); 934 935 len = xfer->actlen; 936 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 937 DPRINTF("%s: xfer too short %d\n", 938 device_get_nameunit(sc->sc_dev), len); 939 ifp->if_ierrors++; 940 goto tr_setup; 941 } 942 943 len -= RT2573_RX_DESC_SIZE; 944 usb2_copy_out(xfer->frbuffers, 0, &sc->sc_rx_desc, 945 RT2573_RX_DESC_SIZE); 946 947 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 948 flags = le32toh(sc->sc_rx_desc.flags); 949 if (flags & RT2573_RX_CRC_ERROR) { 950 /* 951 * This should not happen since we did not 952 * request to receive those frames when we 953 * filled RUM_TXRX_CSR2: 954 */ 955 DPRINTFN(5, "PHY or CRC error\n"); 956 ifp->if_ierrors++; 957 goto tr_setup; 958 } 959 960 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 961 if (m == NULL) { 962 DPRINTF("could not allocate mbuf\n"); 963 ifp->if_ierrors++; 964 goto tr_setup; 965 } 966 usb2_copy_out(xfer->frbuffers, RT2573_RX_DESC_SIZE, 967 mtod(m, uint8_t *), len); 968 969 /* finalize mbuf */ 970 m->m_pkthdr.rcvif = ifp; 971 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 972 973 if (bpf_peers_present(ifp->if_bpf)) { 974 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 975 976 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 977 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 978 (flags & RT2573_RX_OFDM) ? 979 IEEE80211_T_OFDM : IEEE80211_T_CCK); 980 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 981 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 982 tap->wr_antenna = sc->rx_ant; 983 tap->wr_antsignal = rssi; 984 985 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 986 } 987 /* FALLTHROUGH */ 988 case USB_ST_SETUP: 989tr_setup: 990 xfer->frlengths[0] = xfer->max_data_length; 991 usb2_start_hardware(xfer); 992 993 /* 994 * At the end of a USB callback it is always safe to unlock 995 * the private mutex of a device! That is why we do the 996 * "ieee80211_input" here, and not some lines up! 997 */ 998 if (m) { 999 RUM_UNLOCK(sc); 1000 ni = ieee80211_find_rxnode(ic, 1001 mtod(m, struct ieee80211_frame_min *)); 1002 if (ni != NULL) { 1003 (void) ieee80211_input(ni, m, rssi, 1004 RT2573_NOISE_FLOOR, 0); 1005 ieee80211_free_node(ni); 1006 } else 1007 (void) ieee80211_input_all(ic, m, rssi, 1008 RT2573_NOISE_FLOOR, 0); 1009 RUM_LOCK(sc); 1010 } 1011 return; 1012 1013 default: /* Error */ 1014 if (xfer->error != USB_ERR_CANCELLED) { 1015 /* try to clear stall first */ 1016 xfer->flags.stall_pipe = 1; 1017 goto tr_setup; 1018 } 1019 return; 1020 } 1021} 1022 1023static uint8_t 1024rum_plcp_signal(int rate) 1025{ 1026 switch (rate) { 1027 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1028 case 12: return 0xb; 1029 case 18: return 0xf; 1030 case 24: return 0xa; 1031 case 36: return 0xe; 1032 case 48: return 0x9; 1033 case 72: return 0xd; 1034 case 96: return 0x8; 1035 case 108: return 0xc; 1036 1037 /* CCK rates (NB: not IEEE std, device-specific) */ 1038 case 2: return 0x0; 1039 case 4: return 0x1; 1040 case 11: return 0x2; 1041 case 22: return 0x3; 1042 } 1043 return 0xff; /* XXX unsupported/unknown rate */ 1044} 1045 1046static void 1047rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1048 uint32_t flags, uint16_t xflags, int len, int rate) 1049{ 1050 struct ifnet *ifp = sc->sc_ifp; 1051 struct ieee80211com *ic = ifp->if_l2com; 1052 uint16_t plcp_length; 1053 int remainder; 1054 1055 desc->flags = htole32(flags); 1056 desc->flags |= htole32(RT2573_TX_VALID); 1057 desc->flags |= htole32(len << 16); 1058 1059 desc->xflags = htole16(xflags); 1060 1061 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1062 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1063 1064 /* setup PLCP fields */ 1065 desc->plcp_signal = rum_plcp_signal(rate); 1066 desc->plcp_service = 4; 1067 1068 len += IEEE80211_CRC_LEN; 1069 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1070 desc->flags |= htole32(RT2573_TX_OFDM); 1071 1072 plcp_length = len & 0xfff; 1073 desc->plcp_length_hi = plcp_length >> 6; 1074 desc->plcp_length_lo = plcp_length & 0x3f; 1075 } else { 1076 plcp_length = (16 * len + rate - 1) / rate; 1077 if (rate == 22) { 1078 remainder = (16 * len) % 22; 1079 if (remainder != 0 && remainder < 7) 1080 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1081 } 1082 desc->plcp_length_hi = plcp_length >> 8; 1083 desc->plcp_length_lo = plcp_length & 0xff; 1084 1085 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1086 desc->plcp_signal |= 0x08; 1087 } 1088} 1089 1090static int 1091rum_sendprot(struct rum_softc *sc, 1092 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1093{ 1094 struct ieee80211com *ic = ni->ni_ic; 1095 const struct ieee80211_frame *wh; 1096 struct rum_tx_data *data; 1097 struct mbuf *mprot; 1098 int protrate, ackrate, pktlen, flags, isshort; 1099 uint16_t dur; 1100 1101 RUM_LOCK_ASSERT(sc, MA_OWNED); 1102 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1103 ("protection %d", prot)); 1104 1105 wh = mtod(m, const struct ieee80211_frame *); 1106 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1107 1108 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1109 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1110 1111 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1112 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort); 1113 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1114 flags = RT2573_TX_MORE_FRAG; 1115 if (prot == IEEE80211_PROT_RTSCTS) { 1116 /* NB: CTS is the same size as an ACK */ 1117 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1118 flags |= RT2573_TX_NEED_ACK; 1119 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1120 } else { 1121 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1122 } 1123 if (mprot == NULL) { 1124 /* XXX stat + msg */ 1125 return (ENOBUFS); 1126 } 1127 data = STAILQ_FIRST(&sc->tx_free); 1128 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1129 sc->tx_nfree--; 1130 1131 data->m = mprot; 1132 data->ni = ieee80211_ref_node(ni); 1133 data->rate = protrate; 1134 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1135 1136 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1137 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1138 1139 return 0; 1140} 1141 1142static int 1143rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1144{ 1145 struct ieee80211vap *vap = ni->ni_vap; 1146 struct ifnet *ifp = sc->sc_ifp; 1147 struct ieee80211com *ic = ifp->if_l2com; 1148 struct rum_tx_data *data; 1149 struct ieee80211_frame *wh; 1150 const struct ieee80211_txparam *tp; 1151 struct ieee80211_key *k; 1152 uint32_t flags = 0; 1153 uint16_t dur; 1154 1155 RUM_LOCK_ASSERT(sc, MA_OWNED); 1156 1157 data = STAILQ_FIRST(&sc->tx_free); 1158 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1159 sc->tx_nfree--; 1160 1161 wh = mtod(m0, struct ieee80211_frame *); 1162 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1163 k = ieee80211_crypto_encap(ni, m0); 1164 if (k == NULL) { 1165 m_freem(m0); 1166 return ENOBUFS; 1167 } 1168 wh = mtod(m0, struct ieee80211_frame *); 1169 } 1170 1171 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1172 1173 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1174 flags |= RT2573_TX_NEED_ACK; 1175 1176 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1177 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1178 *(uint16_t *)wh->i_dur = htole16(dur); 1179 1180 /* tell hardware to add timestamp for probe responses */ 1181 if ((wh->i_fc[0] & 1182 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1183 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1184 flags |= RT2573_TX_TIMESTAMP; 1185 } 1186 1187 data->m = m0; 1188 data->ni = ni; 1189 data->rate = tp->mgmtrate; 1190 1191 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1192 1193 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1194 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1195 1196 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1197 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1198 1199 return (0); 1200} 1201 1202static int 1203rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1204 const struct ieee80211_bpf_params *params) 1205{ 1206 struct rum_tx_data *data; 1207 uint32_t flags; 1208 int rate, error; 1209 1210 RUM_LOCK_ASSERT(sc, MA_OWNED); 1211 KASSERT(params != NULL, ("no raw xmit params")); 1212 1213 rate = params->ibp_rate0 & IEEE80211_RATE_VAL; 1214 /* XXX validate */ 1215 if (rate == 0) { 1216 m_freem(m0); 1217 return EINVAL; 1218 } 1219 flags = 0; 1220 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1221 flags |= RT2573_TX_NEED_ACK; 1222 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1223 error = rum_sendprot(sc, m0, ni, 1224 params->ibp_flags & IEEE80211_BPF_RTS ? 1225 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1226 rate); 1227 if (error || sc->tx_nfree == 0) { 1228 m_freem(m0); 1229 return ENOBUFS; 1230 } 1231 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1232 } 1233 1234 data = STAILQ_FIRST(&sc->tx_free); 1235 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1236 sc->tx_nfree--; 1237 1238 data->m = m0; 1239 data->ni = ni; 1240 data->rate = rate; 1241 1242 /* XXX need to setup descriptor ourself */ 1243 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1244 1245 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1246 m0->m_pkthdr.len, rate); 1247 1248 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1249 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1250 1251 return 0; 1252} 1253 1254static int 1255rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1256{ 1257 struct ieee80211vap *vap = ni->ni_vap; 1258 struct ifnet *ifp = sc->sc_ifp; 1259 struct ieee80211com *ic = ifp->if_l2com; 1260 struct rum_tx_data *data; 1261 struct ieee80211_frame *wh; 1262 const struct ieee80211_txparam *tp; 1263 struct ieee80211_key *k; 1264 uint32_t flags = 0; 1265 uint16_t dur; 1266 int error, rate; 1267 1268 RUM_LOCK_ASSERT(sc, MA_OWNED); 1269 1270 wh = mtod(m0, struct ieee80211_frame *); 1271 1272 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1273 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1274 rate = tp->mcastrate; 1275 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1276 rate = tp->ucastrate; 1277 else 1278 rate = ni->ni_txrate; 1279 1280 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1281 k = ieee80211_crypto_encap(ni, m0); 1282 if (k == NULL) { 1283 m_freem(m0); 1284 return ENOBUFS; 1285 } 1286 1287 /* packet header may have moved, reset our local pointer */ 1288 wh = mtod(m0, struct ieee80211_frame *); 1289 } 1290 1291 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1292 int prot = IEEE80211_PROT_NONE; 1293 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1294 prot = IEEE80211_PROT_RTSCTS; 1295 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1296 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1297 prot = ic->ic_protmode; 1298 if (prot != IEEE80211_PROT_NONE) { 1299 error = rum_sendprot(sc, m0, ni, prot, rate); 1300 if (error || sc->tx_nfree == 0) { 1301 m_freem(m0); 1302 return ENOBUFS; 1303 } 1304 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1305 } 1306 } 1307 1308 data = STAILQ_FIRST(&sc->tx_free); 1309 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1310 sc->tx_nfree--; 1311 1312 data->m = m0; 1313 data->ni = ni; 1314 data->rate = rate; 1315 1316 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1317 flags |= RT2573_TX_NEED_ACK; 1318 flags |= RT2573_TX_MORE_FRAG; 1319 1320 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1321 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1322 *(uint16_t *)wh->i_dur = htole16(dur); 1323 } 1324 1325 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1326 1327 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1328 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1329 1330 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1331 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1332 1333 return 0; 1334} 1335 1336static void 1337rum_start(struct ifnet *ifp) 1338{ 1339 struct rum_softc *sc = ifp->if_softc; 1340 struct ieee80211_node *ni; 1341 struct mbuf *m; 1342 1343 RUM_LOCK(sc); 1344 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1345 RUM_UNLOCK(sc); 1346 return; 1347 } 1348 for (;;) { 1349 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1350 if (m == NULL) 1351 break; 1352 if (sc->tx_nfree < RUM_TX_MINFREE) { 1353 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1354 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1355 break; 1356 } 1357 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1358 if (rum_tx_data(sc, m, ni) != 0) { 1359 ieee80211_free_node(ni); 1360 ifp->if_oerrors++; 1361 break; 1362 } 1363 } 1364 RUM_UNLOCK(sc); 1365} 1366 1367static int 1368rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1369{ 1370 struct rum_softc *sc = ifp->if_softc; 1371 struct ieee80211com *ic = ifp->if_l2com; 1372 struct ifreq *ifr = (struct ifreq *) data; 1373 int error = 0, startall = 0; 1374 1375 switch (cmd) { 1376 case SIOCSIFFLAGS: 1377 RUM_LOCK(sc); 1378 if (ifp->if_flags & IFF_UP) { 1379 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1380 rum_queue_command(sc, rum_init_task, 1381 &sc->sc_synctask[0].hdr, 1382 &sc->sc_synctask[1].hdr); 1383 startall = 1; 1384 } else 1385 rum_queue_command(sc, rum_promisctask, 1386 &sc->sc_promisctask[0].hdr, 1387 &sc->sc_promisctask[1].hdr); 1388 } else { 1389 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1390 rum_queue_command(sc, rum_stop_task, 1391 &sc->sc_synctask[0].hdr, 1392 &sc->sc_synctask[1].hdr); 1393 } 1394 } 1395 RUM_UNLOCK(sc); 1396 if (startall) 1397 ieee80211_start_all(ic); 1398 break; 1399 case SIOCGIFMEDIA: 1400 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1401 break; 1402 case SIOCGIFADDR: 1403 error = ether_ioctl(ifp, cmd, data); 1404 break; 1405 default: 1406 error = EINVAL; 1407 break; 1408 } 1409 return error; 1410} 1411 1412static void 1413rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1414{ 1415 struct usb2_device_request req; 1416 usb2_error_t error; 1417 1418 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1419 req.bRequest = RT2573_READ_EEPROM; 1420 USETW(req.wValue, 0); 1421 USETW(req.wIndex, addr); 1422 USETW(req.wLength, len); 1423 1424 error = rum_do_request(sc, &req, buf); 1425 if (error != 0) { 1426 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1427 usb2_errstr(error)); 1428 } 1429} 1430 1431static uint32_t 1432rum_read(struct rum_softc *sc, uint16_t reg) 1433{ 1434 uint32_t val; 1435 1436 rum_read_multi(sc, reg, &val, sizeof val); 1437 1438 return le32toh(val); 1439} 1440 1441static void 1442rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1443{ 1444 struct usb2_device_request req; 1445 usb2_error_t error; 1446 1447 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1448 req.bRequest = RT2573_READ_MULTI_MAC; 1449 USETW(req.wValue, 0); 1450 USETW(req.wIndex, reg); 1451 USETW(req.wLength, len); 1452 1453 error = rum_do_request(sc, &req, buf); 1454 if (error != 0) { 1455 device_printf(sc->sc_dev, 1456 "could not multi read MAC register: %s\n", 1457 usb2_errstr(error)); 1458 } 1459} 1460 1461static usb2_error_t 1462rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1463{ 1464 uint32_t tmp = htole32(val); 1465 1466 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1467} 1468 1469static usb2_error_t 1470rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1471{ 1472 struct usb2_device_request req; 1473 usb2_error_t error; 1474 1475 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1476 req.bRequest = RT2573_WRITE_MULTI_MAC; 1477 USETW(req.wValue, 0); 1478 USETW(req.wIndex, reg); 1479 USETW(req.wLength, len); 1480 1481 error = rum_do_request(sc, &req, buf); 1482 if (error != 0) { 1483 device_printf(sc->sc_dev, 1484 "could not multi write MAC register: %s\n", 1485 usb2_errstr(error)); 1486 } 1487 return (error); 1488} 1489 1490static void 1491rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1492{ 1493 uint32_t tmp; 1494 int ntries; 1495 1496 DPRINTFN(2, "reg=0x%08x\n", reg); 1497 1498 for (ntries = 0; ntries < 100; ntries++) { 1499 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1500 break; 1501 if (rum_pause(sc, hz / 100)) 1502 break; 1503 } 1504 if (ntries == 100) { 1505 device_printf(sc->sc_dev, "could not write to BBP\n"); 1506 return; 1507 } 1508 1509 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1510 rum_write(sc, RT2573_PHY_CSR3, tmp); 1511} 1512 1513static uint8_t 1514rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1515{ 1516 uint32_t val; 1517 int ntries; 1518 1519 DPRINTFN(2, "reg=0x%08x\n", reg); 1520 1521 for (ntries = 0; ntries < 100; ntries++) { 1522 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1523 break; 1524 if (rum_pause(sc, hz / 100)) 1525 break; 1526 } 1527 if (ntries == 100) { 1528 device_printf(sc->sc_dev, "could not read BBP\n"); 1529 return 0; 1530 } 1531 1532 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1533 rum_write(sc, RT2573_PHY_CSR3, val); 1534 1535 for (ntries = 0; ntries < 100; ntries++) { 1536 val = rum_read(sc, RT2573_PHY_CSR3); 1537 if (!(val & RT2573_BBP_BUSY)) 1538 return val & 0xff; 1539 if (rum_pause(sc, hz / 100)) 1540 break; 1541 } 1542 1543 device_printf(sc->sc_dev, "could not read BBP\n"); 1544 return 0; 1545} 1546 1547static void 1548rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1549{ 1550 uint32_t tmp; 1551 int ntries; 1552 1553 for (ntries = 0; ntries < 100; ntries++) { 1554 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1555 break; 1556 if (rum_pause(sc, hz / 100)) 1557 break; 1558 } 1559 if (ntries == 100) { 1560 device_printf(sc->sc_dev, "could not write to RF\n"); 1561 return; 1562 } 1563 1564 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1565 (reg & 3); 1566 rum_write(sc, RT2573_PHY_CSR4, tmp); 1567 1568 /* remember last written value in sc */ 1569 sc->rf_regs[reg] = val; 1570 1571 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1572} 1573 1574static void 1575rum_select_antenna(struct rum_softc *sc) 1576{ 1577 uint8_t bbp4, bbp77; 1578 uint32_t tmp; 1579 1580 bbp4 = rum_bbp_read(sc, 4); 1581 bbp77 = rum_bbp_read(sc, 77); 1582 1583 /* TBD */ 1584 1585 /* make sure Rx is disabled before switching antenna */ 1586 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1587 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1588 1589 rum_bbp_write(sc, 4, bbp4); 1590 rum_bbp_write(sc, 77, bbp77); 1591 1592 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1593} 1594 1595/* 1596 * Enable multi-rate retries for frames sent at OFDM rates. 1597 * In 802.11b/g mode, allow fallback to CCK rates. 1598 */ 1599static void 1600rum_enable_mrr(struct rum_softc *sc) 1601{ 1602 struct ifnet *ifp = sc->sc_ifp; 1603 struct ieee80211com *ic = ifp->if_l2com; 1604 uint32_t tmp; 1605 1606 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1607 1608 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1609 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1610 tmp |= RT2573_MRR_CCK_FALLBACK; 1611 tmp |= RT2573_MRR_ENABLED; 1612 1613 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1614} 1615 1616static void 1617rum_set_txpreamble(struct rum_softc *sc) 1618{ 1619 struct ifnet *ifp = sc->sc_ifp; 1620 struct ieee80211com *ic = ifp->if_l2com; 1621 uint32_t tmp; 1622 1623 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1624 1625 tmp &= ~RT2573_SHORT_PREAMBLE; 1626 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1627 tmp |= RT2573_SHORT_PREAMBLE; 1628 1629 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1630} 1631 1632static void 1633rum_set_basicrates(struct rum_softc *sc) 1634{ 1635 struct ifnet *ifp = sc->sc_ifp; 1636 struct ieee80211com *ic = ifp->if_l2com; 1637 1638 /* update basic rate set */ 1639 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1640 /* 11b basic rates: 1, 2Mbps */ 1641 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1642 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1643 /* 11a basic rates: 6, 12, 24Mbps */ 1644 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1645 } else { 1646 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1647 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1648 } 1649} 1650 1651/* 1652 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1653 * driver. 1654 */ 1655static void 1656rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1657{ 1658 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1659 uint32_t tmp; 1660 1661 /* update all BBP registers that depend on the band */ 1662 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1663 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1664 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1665 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1666 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1667 } 1668 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1669 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1670 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1671 } 1672 1673 sc->bbp17 = bbp17; 1674 rum_bbp_write(sc, 17, bbp17); 1675 rum_bbp_write(sc, 96, bbp96); 1676 rum_bbp_write(sc, 104, bbp104); 1677 1678 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1679 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1680 rum_bbp_write(sc, 75, 0x80); 1681 rum_bbp_write(sc, 86, 0x80); 1682 rum_bbp_write(sc, 88, 0x80); 1683 } 1684 1685 rum_bbp_write(sc, 35, bbp35); 1686 rum_bbp_write(sc, 97, bbp97); 1687 rum_bbp_write(sc, 98, bbp98); 1688 1689 tmp = rum_read(sc, RT2573_PHY_CSR0); 1690 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1691 if (IEEE80211_IS_CHAN_2GHZ(c)) 1692 tmp |= RT2573_PA_PE_2GHZ; 1693 else 1694 tmp |= RT2573_PA_PE_5GHZ; 1695 rum_write(sc, RT2573_PHY_CSR0, tmp); 1696} 1697 1698static void 1699rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1700{ 1701 struct ifnet *ifp = sc->sc_ifp; 1702 struct ieee80211com *ic = ifp->if_l2com; 1703 const struct rfprog *rfprog; 1704 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1705 int8_t power; 1706 int i, chan; 1707 1708 chan = ieee80211_chan2ieee(ic, c); 1709 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1710 return; 1711 1712 /* select the appropriate RF settings based on what EEPROM says */ 1713 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1714 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1715 1716 /* find the settings for this channel (we know it exists) */ 1717 for (i = 0; rfprog[i].chan != chan; i++); 1718 1719 power = sc->txpow[i]; 1720 if (power < 0) { 1721 bbp94 += power; 1722 power = 0; 1723 } else if (power > 31) { 1724 bbp94 += power - 31; 1725 power = 31; 1726 } 1727 1728 /* 1729 * If we are switching from the 2GHz band to the 5GHz band or 1730 * vice-versa, BBP registers need to be reprogrammed. 1731 */ 1732 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1733 rum_select_band(sc, c); 1734 rum_select_antenna(sc); 1735 } 1736 ic->ic_curchan = c; 1737 1738 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1739 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1740 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1741 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1742 1743 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1744 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1745 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1746 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1747 1748 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1749 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1750 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1751 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1752 1753 rum_pause(sc, hz / 100); 1754 1755 /* enable smart mode for MIMO-capable RFs */ 1756 bbp3 = rum_bbp_read(sc, 3); 1757 1758 bbp3 &= ~RT2573_SMART_MODE; 1759 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1760 bbp3 |= RT2573_SMART_MODE; 1761 1762 rum_bbp_write(sc, 3, bbp3); 1763 1764 if (bbp94 != RT2573_BBPR94_DEFAULT) 1765 rum_bbp_write(sc, 94, bbp94); 1766 1767 /* give the chip some extra time to do the switchover */ 1768 rum_pause(sc, hz / 100); 1769} 1770 1771/* 1772 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1773 * and HostAP operating modes. 1774 */ 1775static void 1776rum_enable_tsf_sync(struct rum_softc *sc) 1777{ 1778 struct ifnet *ifp = sc->sc_ifp; 1779 struct ieee80211com *ic = ifp->if_l2com; 1780 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1781 uint32_t tmp; 1782 1783 if (vap->iv_opmode != IEEE80211_M_STA) { 1784 /* 1785 * Change default 16ms TBTT adjustment to 8ms. 1786 * Must be done before enabling beacon generation. 1787 */ 1788 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1789 } 1790 1791 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1792 1793 /* set beacon interval (in 1/16ms unit) */ 1794 tmp |= vap->iv_bss->ni_intval * 16; 1795 1796 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1797 if (vap->iv_opmode == IEEE80211_M_STA) 1798 tmp |= RT2573_TSF_MODE(1); 1799 else 1800 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1801 1802 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1803} 1804 1805static void 1806rum_update_slot(struct ifnet *ifp) 1807{ 1808 struct rum_softc *sc = ifp->if_softc; 1809 struct ieee80211com *ic = ifp->if_l2com; 1810 uint8_t slottime; 1811 uint32_t tmp; 1812 1813 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1814 1815 tmp = rum_read(sc, RT2573_MAC_CSR9); 1816 tmp = (tmp & ~0xff) | slottime; 1817 rum_write(sc, RT2573_MAC_CSR9, tmp); 1818 1819 DPRINTF("setting slot time to %uus\n", slottime); 1820} 1821 1822static void 1823rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1824{ 1825 uint32_t tmp; 1826 1827 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1828 rum_write(sc, RT2573_MAC_CSR4, tmp); 1829 1830 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1831 rum_write(sc, RT2573_MAC_CSR5, tmp); 1832} 1833 1834static void 1835rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1836{ 1837 uint32_t tmp; 1838 1839 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1840 rum_write(sc, RT2573_MAC_CSR2, tmp); 1841 1842 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1843 rum_write(sc, RT2573_MAC_CSR3, tmp); 1844} 1845 1846static void 1847rum_promisctask(struct usb2_proc_msg *pm) 1848{ 1849 struct rum_task *task = (struct rum_task *)pm; 1850 struct rum_softc *sc = task->sc; 1851 struct ifnet *ifp = sc->sc_ifp; 1852 uint32_t tmp; 1853 1854 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1855 1856 tmp &= ~RT2573_DROP_NOT_TO_ME; 1857 if (!(ifp->if_flags & IFF_PROMISC)) 1858 tmp |= RT2573_DROP_NOT_TO_ME; 1859 1860 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1861 1862 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1863 "entering" : "leaving"); 1864} 1865 1866static void 1867rum_update_promisc(struct ifnet *ifp) 1868{ 1869 struct rum_softc *sc = ifp->if_softc; 1870 1871 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1872 return; 1873 1874 RUM_LOCK(sc); 1875 rum_queue_command(sc, rum_promisctask, 1876 &sc->sc_promisctask[0].hdr, 1877 &sc->sc_promisctask[1].hdr); 1878 RUM_UNLOCK(sc); 1879} 1880 1881static const char * 1882rum_get_rf(int rev) 1883{ 1884 switch (rev) { 1885 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1886 case RT2573_RF_2528: return "RT2528"; 1887 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1888 case RT2573_RF_5226: return "RT5226"; 1889 default: return "unknown"; 1890 } 1891} 1892 1893static void 1894rum_read_eeprom(struct rum_softc *sc) 1895{ 1896 uint16_t val; 1897#ifdef RUM_DEBUG 1898 int i; 1899#endif 1900 1901 /* read MAC address */ 1902 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1903 1904 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1905 val = le16toh(val); 1906 sc->rf_rev = (val >> 11) & 0x1f; 1907 sc->hw_radio = (val >> 10) & 0x1; 1908 sc->rx_ant = (val >> 4) & 0x3; 1909 sc->tx_ant = (val >> 2) & 0x3; 1910 sc->nb_ant = val & 0x3; 1911 1912 DPRINTF("RF revision=%d\n", sc->rf_rev); 1913 1914 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1915 val = le16toh(val); 1916 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1917 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1918 1919 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1920 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1921 1922 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1923 val = le16toh(val); 1924 if ((val & 0xff) != 0xff) 1925 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1926 1927 /* Only [-10, 10] is valid */ 1928 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1929 sc->rssi_2ghz_corr = 0; 1930 1931 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1932 val = le16toh(val); 1933 if ((val & 0xff) != 0xff) 1934 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1935 1936 /* Only [-10, 10] is valid */ 1937 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1938 sc->rssi_5ghz_corr = 0; 1939 1940 if (sc->ext_2ghz_lna) 1941 sc->rssi_2ghz_corr -= 14; 1942 if (sc->ext_5ghz_lna) 1943 sc->rssi_5ghz_corr -= 14; 1944 1945 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1946 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1947 1948 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1949 val = le16toh(val); 1950 if ((val & 0xff) != 0xff) 1951 sc->rffreq = val & 0xff; 1952 1953 DPRINTF("RF freq=%d\n", sc->rffreq); 1954 1955 /* read Tx power for all a/b/g channels */ 1956 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1957 /* XXX default Tx power for 802.11a channels */ 1958 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1959#ifdef RUM_DEBUG 1960 for (i = 0; i < 14; i++) 1961 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1962#endif 1963 1964 /* read default values for BBP registers */ 1965 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1966#ifdef RUM_DEBUG 1967 for (i = 0; i < 14; i++) { 1968 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1969 continue; 1970 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1971 sc->bbp_prom[i].val); 1972 } 1973#endif 1974} 1975 1976static int 1977rum_bbp_init(struct rum_softc *sc) 1978{ 1979#define N(a) (sizeof (a) / sizeof ((a)[0])) 1980 int i, ntries; 1981 1982 /* wait for BBP to be ready */ 1983 for (ntries = 0; ntries < 100; ntries++) { 1984 const uint8_t val = rum_bbp_read(sc, 0); 1985 if (val != 0 && val != 0xff) 1986 break; 1987 if (rum_pause(sc, hz / 100)) 1988 break; 1989 } 1990 if (ntries == 100) { 1991 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1992 return EIO; 1993 } 1994 1995 /* initialize BBP registers to default values */ 1996 for (i = 0; i < N(rum_def_bbp); i++) 1997 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1998 1999 /* write vendor-specific BBP values (from EEPROM) */ 2000 for (i = 0; i < 16; i++) { 2001 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2002 continue; 2003 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2004 } 2005 2006 return 0; 2007#undef N 2008} 2009 2010static void 2011rum_init_task(struct usb2_proc_msg *pm) 2012{ 2013#define N(a) (sizeof (a) / sizeof ((a)[0])) 2014 struct rum_task *task = (struct rum_task *)pm; 2015 struct rum_softc *sc = task->sc; 2016 struct ifnet *ifp = sc->sc_ifp; 2017 struct ieee80211com *ic = ifp->if_l2com; 2018 uint32_t tmp; 2019 usb2_error_t error; 2020 int i, ntries; 2021 2022 RUM_LOCK_ASSERT(sc, MA_OWNED); 2023 2024 rum_stop_task(pm); 2025 2026 /* initialize MAC registers to default values */ 2027 for (i = 0; i < N(rum_def_mac); i++) 2028 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2029 2030 /* set host ready */ 2031 rum_write(sc, RT2573_MAC_CSR1, 3); 2032 rum_write(sc, RT2573_MAC_CSR1, 0); 2033 2034 /* wait for BBP/RF to wakeup */ 2035 for (ntries = 0; ntries < 100; ntries++) { 2036 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2037 break; 2038 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2039 if (rum_pause(sc, hz / 100)) 2040 break; 2041 } 2042 if (ntries == 100) { 2043 device_printf(sc->sc_dev, 2044 "timeout waiting for BBP/RF to wakeup\n"); 2045 goto fail; 2046 } 2047 2048 if ((error = rum_bbp_init(sc)) != 0) 2049 goto fail; 2050 2051 /* select default channel */ 2052 rum_select_band(sc, ic->ic_curchan); 2053 rum_select_antenna(sc); 2054 rum_set_chan(sc, ic->ic_curchan); 2055 2056 /* clear STA registers */ 2057 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2058 2059 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2060 2061 /* initialize ASIC */ 2062 rum_write(sc, RT2573_MAC_CSR1, 4); 2063 2064 /* 2065 * Allocate Tx and Rx xfer queues. 2066 */ 2067 rum_setup_tx_list(sc); 2068 2069 /* update Rx filter */ 2070 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2071 2072 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2073 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2074 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2075 RT2573_DROP_ACKCTS; 2076 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2077 tmp |= RT2573_DROP_TODS; 2078 if (!(ifp->if_flags & IFF_PROMISC)) 2079 tmp |= RT2573_DROP_NOT_TO_ME; 2080 } 2081 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2082 2083 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2084 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2085 usb2_transfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2086 usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2087 return; 2088 2089fail: rum_stop_task(pm); 2090#undef N 2091} 2092 2093static void 2094rum_init(void *priv) 2095{ 2096 struct rum_softc *sc = priv; 2097 struct ifnet *ifp = sc->sc_ifp; 2098 struct ieee80211com *ic = ifp->if_l2com; 2099 2100 RUM_LOCK(sc); 2101 rum_queue_command(sc, rum_init_task, 2102 &sc->sc_synctask[0].hdr, 2103 &sc->sc_synctask[1].hdr); 2104 RUM_UNLOCK(sc); 2105 2106 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2107 ieee80211_start_all(ic); /* start all vap's */ 2108} 2109 2110static void 2111rum_stop_task(struct usb2_proc_msg *pm) 2112{ 2113 struct rum_task *task = (struct rum_task *)pm; 2114 struct rum_softc *sc = task->sc; 2115 struct ifnet *ifp = sc->sc_ifp; 2116 uint32_t tmp; 2117 2118 RUM_LOCK_ASSERT(sc, MA_OWNED); 2119 2120 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2121 2122 RUM_UNLOCK(sc); 2123 2124 /* 2125 * Drain the USB transfers, if not already drained: 2126 */ 2127 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2128 usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2129 2130 RUM_LOCK(sc); 2131 2132 rum_unsetup_tx_list(sc); 2133 2134 /* disable Rx */ 2135 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2136 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2137 2138 /* reset ASIC */ 2139 rum_write(sc, RT2573_MAC_CSR1, 3); 2140 rum_write(sc, RT2573_MAC_CSR1, 0); 2141} 2142 2143static void 2144rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2145{ 2146 struct usb2_device_request req; 2147 uint16_t reg = RT2573_MCU_CODE_BASE; 2148 usb2_error_t err; 2149 2150 /* copy firmware image into NIC */ 2151 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2152 err = rum_write(sc, reg, UGETDW(ucode)); 2153 if (err) { 2154 /* firmware already loaded ? */ 2155 device_printf(sc->sc_dev, "Firmware load " 2156 "failure! (ignored)\n"); 2157 break; 2158 } 2159 } 2160 2161 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2162 req.bRequest = RT2573_MCU_CNTL; 2163 USETW(req.wValue, RT2573_MCU_RUN); 2164 USETW(req.wIndex, 0); 2165 USETW(req.wLength, 0); 2166 2167 err = rum_do_request(sc, &req, NULL); 2168 if (err != 0) { 2169 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2170 usb2_errstr(err)); 2171 } 2172 2173 /* give the chip some time to boot */ 2174 rum_pause(sc, hz / 8); 2175} 2176 2177static int 2178rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2179{ 2180 struct ieee80211com *ic = vap->iv_ic; 2181 const struct ieee80211_txparam *tp; 2182 struct rum_tx_desc desc; 2183 struct mbuf *m0; 2184 2185 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2186 if (m0 == NULL) { 2187 return ENOBUFS; 2188 } 2189 2190 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2191 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2192 m0->m_pkthdr.len, tp->mgmtrate); 2193 2194 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2195 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2196 2197 /* copy beacon header and payload into NIC memory */ 2198 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2199 m0->m_pkthdr.len); 2200 2201 m_freem(m0); 2202 2203 return 0; 2204} 2205 2206static int 2207rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2208 const struct ieee80211_bpf_params *params) 2209{ 2210 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2211 struct rum_softc *sc = ifp->if_softc; 2212 2213 RUM_LOCK(sc); 2214 /* prevent management frames from being sent if we're not ready */ 2215 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2216 RUM_UNLOCK(sc); 2217 m_freem(m); 2218 ieee80211_free_node(ni); 2219 return ENETDOWN; 2220 } 2221 if (sc->tx_nfree < RUM_TX_MINFREE) { 2222 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2223 RUM_UNLOCK(sc); 2224 m_freem(m); 2225 ieee80211_free_node(ni); 2226 return EIO; 2227 } 2228 2229 ifp->if_opackets++; 2230 2231 if (params == NULL) { 2232 /* 2233 * Legacy path; interpret frame contents to decide 2234 * precisely how to send the frame. 2235 */ 2236 if (rum_tx_mgt(sc, m, ni) != 0) 2237 goto bad; 2238 } else { 2239 /* 2240 * Caller supplied explicit parameters to use in 2241 * sending the frame. 2242 */ 2243 if (rum_tx_raw(sc, m, ni, params) != 0) 2244 goto bad; 2245 } 2246 RUM_UNLOCK(sc); 2247 2248 return 0; 2249bad: 2250 ifp->if_oerrors++; 2251 RUM_UNLOCK(sc); 2252 ieee80211_free_node(ni); 2253 return EIO; 2254} 2255 2256static void 2257rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2258{ 2259 struct ieee80211vap *vap = ni->ni_vap; 2260 struct rum_vap *rvp = RUM_VAP(vap); 2261 2262 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2263 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2264 2265 ieee80211_amrr_node_init(&rvp->amrr, &RUM_NODE(ni)->amn, ni); 2266 2267 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2268} 2269 2270static void 2271rum_amrr_timeout(void *arg) 2272{ 2273 struct rum_vap *rvp = arg; 2274 struct rum_softc *sc = rvp->sc; 2275 2276 rum_queue_command(sc, rum_amrr_task, 2277 &rvp->amrr_task[0].hdr, &rvp->amrr_task[1].hdr); 2278} 2279 2280static void 2281rum_amrr_task(struct usb2_proc_msg *pm) 2282{ 2283 struct rum_task *task = (struct rum_task *)pm; 2284 struct rum_softc *sc = task->sc; 2285 struct ifnet *ifp = sc->sc_ifp; 2286 struct ieee80211com *ic = ifp->if_l2com; 2287 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2288 struct rum_vap *rvp = RUM_VAP(vap); 2289 struct ieee80211_node *ni = vap->iv_bss; 2290 int ok, fail; 2291 2292 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2293 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2294 2295 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2296 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2297 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2298 2299 ieee80211_amrr_tx_update(&RUM_NODE(ni)->amn, 2300 ok+fail, ok, (le32toh(sc->sta[5]) & 0xffff) + fail); 2301 (void) ieee80211_amrr_choose(ni, &RUM_NODE(ni)->amn); 2302 2303 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2304 2305 usb2_callout_reset(&rvp->amrr_ch, hz, rum_amrr_timeout, rvp); 2306} 2307 2308/* ARGUSED */ 2309static struct ieee80211_node * 2310rum_node_alloc(struct ieee80211vap *vap __unused, 2311 const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 2312{ 2313 struct rum_node *rn; 2314 2315 rn = malloc(sizeof(struct rum_node), M_80211_NODE, M_NOWAIT | M_ZERO); 2316 return rn != NULL ? &rn->ni : NULL; 2317} 2318 2319static void 2320rum_newassoc(struct ieee80211_node *ni, int isnew) 2321{ 2322 struct ieee80211vap *vap = ni->ni_vap; 2323 2324 ieee80211_amrr_node_init(&RUM_VAP(vap)->amrr, &RUM_NODE(ni)->amn, ni); 2325} 2326 2327static void 2328rum_scan_start(struct ieee80211com *ic) 2329{ 2330 struct rum_softc *sc = ic->ic_ifp->if_softc; 2331 2332 RUM_LOCK(sc); 2333 /* do it in a process context */ 2334 sc->sc_scan_action = RUM_SCAN_START; 2335 rum_queue_command(sc, rum_scantask, 2336 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2337 RUM_UNLOCK(sc); 2338 2339} 2340 2341static void 2342rum_scan_end(struct ieee80211com *ic) 2343{ 2344 struct rum_softc *sc = ic->ic_ifp->if_softc; 2345 2346 RUM_LOCK(sc); 2347 /* do it in a process context */ 2348 sc->sc_scan_action = RUM_SCAN_END; 2349 rum_queue_command(sc, rum_scantask, 2350 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2351 RUM_UNLOCK(sc); 2352 2353} 2354 2355static void 2356rum_set_channel(struct ieee80211com *ic) 2357{ 2358 struct rum_softc *sc = ic->ic_ifp->if_softc; 2359 2360 RUM_LOCK(sc); 2361 /* do it in a process context */ 2362 sc->sc_scan_action = RUM_SET_CHANNEL; 2363 rum_queue_command(sc, rum_scantask, 2364 &sc->sc_scantask[0].hdr, &sc->sc_scantask[1].hdr); 2365 RUM_UNLOCK(sc); 2366} 2367 2368static void 2369rum_scantask(struct usb2_proc_msg *pm) 2370{ 2371 struct rum_task *task = (struct rum_task *)pm; 2372 struct rum_softc *sc = task->sc; 2373 struct ifnet *ifp = sc->sc_ifp; 2374 struct ieee80211com *ic = ifp->if_l2com; 2375 uint32_t tmp; 2376 2377 RUM_LOCK_ASSERT(sc, MA_OWNED); 2378 2379 switch (sc->sc_scan_action) { 2380 case RUM_SCAN_START: 2381 /* abort TSF synchronization */ 2382 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2383 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2384 rum_set_bssid(sc, ifp->if_broadcastaddr); 2385 break; 2386 2387 case RUM_SET_CHANNEL: 2388 rum_set_chan(sc, ic->ic_curchan); 2389 break; 2390 2391 default: /* RUM_SCAN_END */ 2392 rum_enable_tsf_sync(sc); 2393 rum_set_bssid(sc, sc->sc_bssid); 2394 break; 2395 } 2396} 2397 2398static int 2399rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2400{ 2401 struct ifnet *ifp = sc->sc_ifp; 2402 struct ieee80211com *ic = ifp->if_l2com; 2403 int lna, agc, rssi; 2404 2405 lna = (raw >> 5) & 0x3; 2406 agc = raw & 0x1f; 2407 2408 if (lna == 0) { 2409 /* 2410 * No RSSI mapping 2411 * 2412 * NB: Since RSSI is relative to noise floor, -1 is 2413 * adequate for caller to know error happened. 2414 */ 2415 return -1; 2416 } 2417 2418 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2419 2420 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2421 rssi += sc->rssi_2ghz_corr; 2422 2423 if (lna == 1) 2424 rssi -= 64; 2425 else if (lna == 2) 2426 rssi -= 74; 2427 else if (lna == 3) 2428 rssi -= 90; 2429 } else { 2430 rssi += sc->rssi_5ghz_corr; 2431 2432 if (!sc->ext_5ghz_lna && lna != 1) 2433 rssi += 4; 2434 2435 if (lna == 1) 2436 rssi -= 64; 2437 else if (lna == 2) 2438 rssi -= 86; 2439 else if (lna == 3) 2440 rssi -= 100; 2441 } 2442 return rssi; 2443} 2444 2445static int 2446rum_pause(struct rum_softc *sc, int timeout) 2447{ 2448 if (usb2_proc_is_gone(&sc->sc_tq)) 2449 return (1); 2450 2451 usb2_pause_mtx(&sc->sc_mtx, timeout); 2452 return (0); 2453} 2454 2455static void 2456rum_command_wrapper(struct usb2_proc_msg *pm) 2457{ 2458 struct rum_task *task = (struct rum_task *)pm; 2459 struct rum_softc *sc = task->sc; 2460 struct ifnet *ifp; 2461 2462 /* wait for pending transfer, if any */ 2463 while (usb2_transfer_pending(sc->sc_xfer[RUM_BULK_WR])) 2464 cv_wait(&sc->sc_cmd_cv, &sc->sc_mtx); 2465 2466 /* make sure any hardware buffers are emptied */ 2467 rum_pause(sc, hz / 1000); 2468 2469 /* execute task */ 2470 task->func(pm); 2471 2472 /* check if this is the last task executed */ 2473 if (sc->sc_last_task == task) { 2474 sc->sc_last_task = NULL; 2475 ifp = sc->sc_ifp; 2476 /* re-start TX, if any */ 2477 if ((ifp != NULL) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 2478 usb2_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 2479 } 2480} 2481 2482static void 2483rum_queue_command(struct rum_softc *sc, usb2_proc_callback_t *fn, 2484 struct usb2_proc_msg *t0, struct usb2_proc_msg *t1) 2485{ 2486 struct rum_task *task; 2487 2488 RUM_LOCK_ASSERT(sc, MA_OWNED); 2489 2490 /* 2491 * NOTE: The task cannot get executed before we drop the 2492 * "sc_mtx" mutex. It is safe to update fields in the message 2493 * structure after that the message got queued. 2494 */ 2495 task = (struct rum_task *) 2496 usb2_proc_msignal(&sc->sc_tq, t0, t1); 2497 2498 /* Setup callback and softc pointers */ 2499 task->hdr.pm_callback = rum_command_wrapper; 2500 task->func = fn; 2501 task->sc = sc; 2502 2503 /* Make sure that any TX operation will stop */ 2504 sc->sc_last_task = task; 2505 2506 /* 2507 * Init, stop and flush must be synchronous! 2508 */ 2509 if ((fn == rum_init_task) || (fn == rum_stop_task) || 2510 (fn == rum_flush_task)) 2511 usb2_proc_mwait(&sc->sc_tq, t0, t1); 2512} 2513 2514static device_method_t rum_methods[] = { 2515 /* Device interface */ 2516 DEVMETHOD(device_probe, rum_match), 2517 DEVMETHOD(device_attach, rum_attach), 2518 DEVMETHOD(device_detach, rum_detach), 2519 2520 { 0, 0 } 2521}; 2522 2523static driver_t rum_driver = { 2524 .name = "rum", 2525 .methods = rum_methods, 2526 .size = sizeof(struct rum_softc), 2527}; 2528 2529static devclass_t rum_devclass; 2530 2531DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2532