| 1 | /* $NetBSD: if_ural.c,v 1.50 2016/07/07 06:55:42 msaitoh Exp $ */ |
| 2 | /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/usb/if_ural.c,v 1.40 2006/06/02 23:14:40 sam Exp $ */ |
| 3 | |
| 4 | /*- |
| 5 | * Copyright (c) 2005, 2006 |
| 6 | * Damien Bergamini <damien.bergamini@free.fr> |
| 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 | /*- |
| 22 | * Ralink Technology RT2500USB chipset driver |
| 23 | * http://www.ralinktech.com/ |
| 24 | */ |
| 25 | |
| 26 | #include <sys/cdefs.h> |
| 27 | __KERNEL_RCSID(0, "$NetBSD: if_ural.c,v 1.50 2016/07/07 06:55:42 msaitoh Exp $" ); |
| 28 | |
| 29 | #include <sys/param.h> |
| 30 | #include <sys/sockio.h> |
| 31 | #include <sys/sysctl.h> |
| 32 | #include <sys/mbuf.h> |
| 33 | #include <sys/kernel.h> |
| 34 | #include <sys/socket.h> |
| 35 | #include <sys/systm.h> |
| 36 | #include <sys/conf.h> |
| 37 | #include <sys/device.h> |
| 38 | |
| 39 | #include <sys/bus.h> |
| 40 | #include <machine/endian.h> |
| 41 | #include <sys/intr.h> |
| 42 | |
| 43 | #include <net/bpf.h> |
| 44 | #include <net/if.h> |
| 45 | #include <net/if_arp.h> |
| 46 | #include <net/if_dl.h> |
| 47 | #include <net/if_ether.h> |
| 48 | #include <net/if_media.h> |
| 49 | #include <net/if_types.h> |
| 50 | |
| 51 | #include <netinet/in.h> |
| 52 | #include <netinet/in_systm.h> |
| 53 | #include <netinet/in_var.h> |
| 54 | #include <netinet/ip.h> |
| 55 | |
| 56 | #include <net80211/ieee80211_netbsd.h> |
| 57 | #include <net80211/ieee80211_var.h> |
| 58 | #include <net80211/ieee80211_amrr.h> |
| 59 | #include <net80211/ieee80211_radiotap.h> |
| 60 | |
| 61 | #include <dev/usb/usb.h> |
| 62 | #include <dev/usb/usbdi.h> |
| 63 | #include <dev/usb/usbdi_util.h> |
| 64 | #include <dev/usb/usbdevs.h> |
| 65 | |
| 66 | #include <dev/usb/if_uralreg.h> |
| 67 | #include <dev/usb/if_uralvar.h> |
| 68 | |
| 69 | #ifdef URAL_DEBUG |
| 70 | #define DPRINTF(x) do { if (ural_debug) printf x; } while (0) |
| 71 | #define DPRINTFN(n, x) do { if (ural_debug >= (n)) printf x; } while (0) |
| 72 | int ural_debug = 0; |
| 73 | #else |
| 74 | #define DPRINTF(x) |
| 75 | #define DPRINTFN(n, x) |
| 76 | #endif |
| 77 | |
| 78 | /* various supported device vendors/products */ |
| 79 | static const struct usb_devno ural_devs[] = { |
| 80 | { USB_VENDOR_ASUSTEK, USB_PRODUCT_ASUSTEK_WL167G }, |
| 81 | { USB_VENDOR_ASUSTEK, USB_PRODUCT_RALINK_RT2570 }, |
| 82 | { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 }, |
| 83 | { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54G }, |
| 84 | { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GP }, |
| 85 | { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_HU200TS }, |
| 86 | { USB_VENDOR_CONCEPTRONIC, USB_PRODUCT_CONCEPTRONIC_C54RU }, |
| 87 | { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DWLG122 }, |
| 88 | { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWBKG }, |
| 89 | { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254 }, |
| 90 | { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54 }, |
| 91 | { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54AI }, |
| 92 | { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54YB }, |
| 93 | { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_NINWIFI }, |
| 94 | { USB_VENDOR_MSI, USB_PRODUCT_MSI_MS6861 }, |
| 95 | { USB_VENDOR_MSI, USB_PRODUCT_MSI_MS6865 }, |
| 96 | { USB_VENDOR_MSI, USB_PRODUCT_MSI_MS6869 }, |
| 97 | { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_NV902W }, |
| 98 | { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570 }, |
| 99 | { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_2 }, |
| 100 | { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_3 }, |
| 101 | { USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG }, |
| 102 | { USB_VENDOR_SPHAIRON, USB_PRODUCT_SPHAIRON_UB801R }, |
| 103 | { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_EP9001G }, |
| 104 | { USB_VENDOR_VTECH, USB_PRODUCT_VTECH_RT2570 }, |
| 105 | { USB_VENDOR_ZINWELL, USB_PRODUCT_ZINWELL_ZWXG261 }, |
| 106 | }; |
| 107 | |
| 108 | Static int ural_alloc_tx_list(struct ural_softc *); |
| 109 | Static void ural_free_tx_list(struct ural_softc *); |
| 110 | Static int ural_alloc_rx_list(struct ural_softc *); |
| 111 | Static void ural_free_rx_list(struct ural_softc *); |
| 112 | Static int ural_media_change(struct ifnet *); |
| 113 | Static void ural_next_scan(void *); |
| 114 | Static void ural_task(void *); |
| 115 | Static int ural_newstate(struct ieee80211com *, |
| 116 | enum ieee80211_state, int); |
| 117 | Static int ural_rxrate(struct ural_rx_desc *); |
| 118 | Static void ural_txeof(struct usbd_xfer *, void *, |
| 119 | usbd_status); |
| 120 | Static void ural_rxeof(struct usbd_xfer *, void *, |
| 121 | usbd_status); |
| 122 | Static int ural_ack_rate(struct ieee80211com *, int); |
| 123 | Static uint16_t ural_txtime(int, int, uint32_t); |
| 124 | Static uint8_t ural_plcp_signal(int); |
| 125 | Static void ural_setup_tx_desc(struct ural_softc *, |
| 126 | struct ural_tx_desc *, uint32_t, int, int); |
| 127 | Static int ural_tx_bcn(struct ural_softc *, struct mbuf *, |
| 128 | struct ieee80211_node *); |
| 129 | Static int ural_tx_mgt(struct ural_softc *, struct mbuf *, |
| 130 | struct ieee80211_node *); |
| 131 | Static int ural_tx_data(struct ural_softc *, struct mbuf *, |
| 132 | struct ieee80211_node *); |
| 133 | Static void ural_start(struct ifnet *); |
| 134 | Static void ural_watchdog(struct ifnet *); |
| 135 | Static int ural_reset(struct ifnet *); |
| 136 | Static int ural_ioctl(struct ifnet *, u_long, void *); |
| 137 | Static void ural_set_testmode(struct ural_softc *); |
| 138 | Static void ural_eeprom_read(struct ural_softc *, uint16_t, void *, |
| 139 | int); |
| 140 | Static uint16_t ural_read(struct ural_softc *, uint16_t); |
| 141 | Static void ural_read_multi(struct ural_softc *, uint16_t, void *, |
| 142 | int); |
| 143 | Static void ural_write(struct ural_softc *, uint16_t, uint16_t); |
| 144 | Static void ural_write_multi(struct ural_softc *, uint16_t, void *, |
| 145 | int); |
| 146 | Static void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t); |
| 147 | Static uint8_t ural_bbp_read(struct ural_softc *, uint8_t); |
| 148 | Static void ural_rf_write(struct ural_softc *, uint8_t, uint32_t); |
| 149 | Static void ural_set_chan(struct ural_softc *, |
| 150 | struct ieee80211_channel *); |
| 151 | Static void ural_disable_rf_tune(struct ural_softc *); |
| 152 | Static void ural_enable_tsf_sync(struct ural_softc *); |
| 153 | Static void ural_update_slot(struct ifnet *); |
| 154 | Static void ural_set_txpreamble(struct ural_softc *); |
| 155 | Static void ural_set_basicrates(struct ural_softc *); |
| 156 | Static void ural_set_bssid(struct ural_softc *, uint8_t *); |
| 157 | Static void ural_set_macaddr(struct ural_softc *, uint8_t *); |
| 158 | Static void ural_update_promisc(struct ural_softc *); |
| 159 | Static const char *ural_get_rf(int); |
| 160 | Static void ural_read_eeprom(struct ural_softc *); |
| 161 | Static int ural_bbp_init(struct ural_softc *); |
| 162 | Static void ural_set_txantenna(struct ural_softc *, int); |
| 163 | Static void ural_set_rxantenna(struct ural_softc *, int); |
| 164 | Static int ural_init(struct ifnet *); |
| 165 | Static void ural_stop(struct ifnet *, int); |
| 166 | Static void ural_amrr_start(struct ural_softc *, |
| 167 | struct ieee80211_node *); |
| 168 | Static void ural_amrr_timeout(void *); |
| 169 | Static void ural_amrr_update(struct usbd_xfer *, void *, |
| 170 | usbd_status status); |
| 171 | |
| 172 | /* |
| 173 | * Supported rates for 802.11a/b/g modes (in 500Kbps unit). |
| 174 | */ |
| 175 | static const struct ieee80211_rateset ural_rateset_11a = |
| 176 | { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; |
| 177 | |
| 178 | static const struct ieee80211_rateset ural_rateset_11b = |
| 179 | { 4, { 2, 4, 11, 22 } }; |
| 180 | |
| 181 | static const struct ieee80211_rateset ural_rateset_11g = |
| 182 | { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; |
| 183 | |
| 184 | /* |
| 185 | * Default values for MAC registers; values taken from the reference driver. |
| 186 | */ |
| 187 | static const struct { |
| 188 | uint16_t reg; |
| 189 | uint16_t val; |
| 190 | } ural_def_mac[] = { |
| 191 | { RAL_TXRX_CSR5, 0x8c8d }, |
| 192 | { RAL_TXRX_CSR6, 0x8b8a }, |
| 193 | { RAL_TXRX_CSR7, 0x8687 }, |
| 194 | { RAL_TXRX_CSR8, 0x0085 }, |
| 195 | { RAL_MAC_CSR13, 0x1111 }, |
| 196 | { RAL_MAC_CSR14, 0x1e11 }, |
| 197 | { RAL_TXRX_CSR21, 0xe78f }, |
| 198 | { RAL_MAC_CSR9, 0xff1d }, |
| 199 | { RAL_MAC_CSR11, 0x0002 }, |
| 200 | { RAL_MAC_CSR22, 0x0053 }, |
| 201 | { RAL_MAC_CSR15, 0x0000 }, |
| 202 | { RAL_MAC_CSR8, 0x0780 }, |
| 203 | { RAL_TXRX_CSR19, 0x0000 }, |
| 204 | { RAL_TXRX_CSR18, 0x005a }, |
| 205 | { RAL_PHY_CSR2, 0x0000 }, |
| 206 | { RAL_TXRX_CSR0, 0x1ec0 }, |
| 207 | { RAL_PHY_CSR4, 0x000f } |
| 208 | }; |
| 209 | |
| 210 | /* |
| 211 | * Default values for BBP registers; values taken from the reference driver. |
| 212 | */ |
| 213 | static const struct { |
| 214 | uint8_t reg; |
| 215 | uint8_t val; |
| 216 | } ural_def_bbp[] = { |
| 217 | { 3, 0x02 }, |
| 218 | { 4, 0x19 }, |
| 219 | { 14, 0x1c }, |
| 220 | { 15, 0x30 }, |
| 221 | { 16, 0xac }, |
| 222 | { 17, 0x48 }, |
| 223 | { 18, 0x18 }, |
| 224 | { 19, 0xff }, |
| 225 | { 20, 0x1e }, |
| 226 | { 21, 0x08 }, |
| 227 | { 22, 0x08 }, |
| 228 | { 23, 0x08 }, |
| 229 | { 24, 0x80 }, |
| 230 | { 25, 0x50 }, |
| 231 | { 26, 0x08 }, |
| 232 | { 27, 0x23 }, |
| 233 | { 30, 0x10 }, |
| 234 | { 31, 0x2b }, |
| 235 | { 32, 0xb9 }, |
| 236 | { 34, 0x12 }, |
| 237 | { 35, 0x50 }, |
| 238 | { 39, 0xc4 }, |
| 239 | { 40, 0x02 }, |
| 240 | { 41, 0x60 }, |
| 241 | { 53, 0x10 }, |
| 242 | { 54, 0x18 }, |
| 243 | { 56, 0x08 }, |
| 244 | { 57, 0x10 }, |
| 245 | { 58, 0x08 }, |
| 246 | { 61, 0x60 }, |
| 247 | { 62, 0x10 }, |
| 248 | { 75, 0xff } |
| 249 | }; |
| 250 | |
| 251 | /* |
| 252 | * Default values for RF register R2 indexed by channel numbers. |
| 253 | */ |
| 254 | static const uint32_t ural_rf2522_r2[] = { |
| 255 | 0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814, |
| 256 | 0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e |
| 257 | }; |
| 258 | |
| 259 | static const uint32_t ural_rf2523_r2[] = { |
| 260 | 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d, |
| 261 | 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346 |
| 262 | }; |
| 263 | |
| 264 | static const uint32_t ural_rf2524_r2[] = { |
| 265 | 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d, |
| 266 | 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346 |
| 267 | }; |
| 268 | |
| 269 | static const uint32_t ural_rf2525_r2[] = { |
| 270 | 0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d, |
| 271 | 0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346 |
| 272 | }; |
| 273 | |
| 274 | static const uint32_t ural_rf2525_hi_r2[] = { |
| 275 | 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345, |
| 276 | 0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e |
| 277 | }; |
| 278 | |
| 279 | static const uint32_t ural_rf2525e_r2[] = { |
| 280 | 0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463, |
| 281 | 0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b |
| 282 | }; |
| 283 | |
| 284 | static const uint32_t ural_rf2526_hi_r2[] = { |
| 285 | 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d, |
| 286 | 0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241 |
| 287 | }; |
| 288 | |
| 289 | static const uint32_t ural_rf2526_r2[] = { |
| 290 | 0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229, |
| 291 | 0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d |
| 292 | }; |
| 293 | |
| 294 | /* |
| 295 | * For dual-band RF, RF registers R1 and R4 also depend on channel number; |
| 296 | * values taken from the reference driver. |
| 297 | */ |
| 298 | static const struct { |
| 299 | uint8_t chan; |
| 300 | uint32_t r1; |
| 301 | uint32_t r2; |
| 302 | uint32_t r4; |
| 303 | } ural_rf5222[] = { |
| 304 | { 1, 0x08808, 0x0044d, 0x00282 }, |
| 305 | { 2, 0x08808, 0x0044e, 0x00282 }, |
| 306 | { 3, 0x08808, 0x0044f, 0x00282 }, |
| 307 | { 4, 0x08808, 0x00460, 0x00282 }, |
| 308 | { 5, 0x08808, 0x00461, 0x00282 }, |
| 309 | { 6, 0x08808, 0x00462, 0x00282 }, |
| 310 | { 7, 0x08808, 0x00463, 0x00282 }, |
| 311 | { 8, 0x08808, 0x00464, 0x00282 }, |
| 312 | { 9, 0x08808, 0x00465, 0x00282 }, |
| 313 | { 10, 0x08808, 0x00466, 0x00282 }, |
| 314 | { 11, 0x08808, 0x00467, 0x00282 }, |
| 315 | { 12, 0x08808, 0x00468, 0x00282 }, |
| 316 | { 13, 0x08808, 0x00469, 0x00282 }, |
| 317 | { 14, 0x08808, 0x0046b, 0x00286 }, |
| 318 | |
| 319 | { 36, 0x08804, 0x06225, 0x00287 }, |
| 320 | { 40, 0x08804, 0x06226, 0x00287 }, |
| 321 | { 44, 0x08804, 0x06227, 0x00287 }, |
| 322 | { 48, 0x08804, 0x06228, 0x00287 }, |
| 323 | { 52, 0x08804, 0x06229, 0x00287 }, |
| 324 | { 56, 0x08804, 0x0622a, 0x00287 }, |
| 325 | { 60, 0x08804, 0x0622b, 0x00287 }, |
| 326 | { 64, 0x08804, 0x0622c, 0x00287 }, |
| 327 | |
| 328 | { 100, 0x08804, 0x02200, 0x00283 }, |
| 329 | { 104, 0x08804, 0x02201, 0x00283 }, |
| 330 | { 108, 0x08804, 0x02202, 0x00283 }, |
| 331 | { 112, 0x08804, 0x02203, 0x00283 }, |
| 332 | { 116, 0x08804, 0x02204, 0x00283 }, |
| 333 | { 120, 0x08804, 0x02205, 0x00283 }, |
| 334 | { 124, 0x08804, 0x02206, 0x00283 }, |
| 335 | { 128, 0x08804, 0x02207, 0x00283 }, |
| 336 | { 132, 0x08804, 0x02208, 0x00283 }, |
| 337 | { 136, 0x08804, 0x02209, 0x00283 }, |
| 338 | { 140, 0x08804, 0x0220a, 0x00283 }, |
| 339 | |
| 340 | { 149, 0x08808, 0x02429, 0x00281 }, |
| 341 | { 153, 0x08808, 0x0242b, 0x00281 }, |
| 342 | { 157, 0x08808, 0x0242d, 0x00281 }, |
| 343 | { 161, 0x08808, 0x0242f, 0x00281 } |
| 344 | }; |
| 345 | |
| 346 | int ural_match(device_t, cfdata_t, void *); |
| 347 | void ural_attach(device_t, device_t, void *); |
| 348 | int ural_detach(device_t, int); |
| 349 | int ural_activate(device_t, enum devact); |
| 350 | extern struct cfdriver ural_cd; |
| 351 | CFATTACH_DECL_NEW(ural, sizeof(struct ural_softc), ural_match, ural_attach, |
| 352 | ural_detach, ural_activate); |
| 353 | |
| 354 | int |
| 355 | ural_match(device_t parent, cfdata_t match, void *aux) |
| 356 | { |
| 357 | struct usb_attach_arg *uaa = aux; |
| 358 | |
| 359 | return (usb_lookup(ural_devs, uaa->uaa_vendor, uaa->uaa_product) != NULL) ? |
| 360 | UMATCH_VENDOR_PRODUCT : UMATCH_NONE; |
| 361 | } |
| 362 | |
| 363 | void |
| 364 | ural_attach(device_t parent, device_t self, void *aux) |
| 365 | { |
| 366 | struct ural_softc *sc = device_private(self); |
| 367 | struct usb_attach_arg *uaa = aux; |
| 368 | struct ieee80211com *ic = &sc->sc_ic; |
| 369 | struct ifnet *ifp = &sc->sc_if; |
| 370 | usb_interface_descriptor_t *id; |
| 371 | usb_endpoint_descriptor_t *ed; |
| 372 | usbd_status error; |
| 373 | char *devinfop; |
| 374 | int i; |
| 375 | |
| 376 | sc->sc_dev = self; |
| 377 | sc->sc_udev = uaa->uaa_device; |
| 378 | |
| 379 | aprint_naive("\n" ); |
| 380 | aprint_normal("\n" ); |
| 381 | |
| 382 | devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); |
| 383 | aprint_normal_dev(self, "%s\n" , devinfop); |
| 384 | usbd_devinfo_free(devinfop); |
| 385 | |
| 386 | error = usbd_set_config_no(sc->sc_udev, RAL_CONFIG_NO, 0); |
| 387 | if (error != 0) { |
| 388 | aprint_error_dev(self, "failed to set configuration" |
| 389 | ", err=%s\n" , usbd_errstr(error)); |
| 390 | return; |
| 391 | } |
| 392 | |
| 393 | /* get the first interface handle */ |
| 394 | error = usbd_device2interface_handle(sc->sc_udev, RAL_IFACE_INDEX, |
| 395 | &sc->sc_iface); |
| 396 | if (error != 0) { |
| 397 | aprint_error_dev(self, "could not get interface handle\n" ); |
| 398 | return; |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * Find endpoints. |
| 403 | */ |
| 404 | id = usbd_get_interface_descriptor(sc->sc_iface); |
| 405 | |
| 406 | sc->sc_rx_no = sc->sc_tx_no = -1; |
| 407 | for (i = 0; i < id->bNumEndpoints; i++) { |
| 408 | ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); |
| 409 | if (ed == NULL) { |
| 410 | aprint_error_dev(self, |
| 411 | "no endpoint descriptor for %d\n" , i); |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 416 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) |
| 417 | sc->sc_rx_no = ed->bEndpointAddress; |
| 418 | else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
| 419 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) |
| 420 | sc->sc_tx_no = ed->bEndpointAddress; |
| 421 | } |
| 422 | if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) { |
| 423 | aprint_error_dev(self, "missing endpoint\n" ); |
| 424 | return; |
| 425 | } |
| 426 | |
| 427 | usb_init_task(&sc->sc_task, ural_task, sc, 0); |
| 428 | callout_init(&sc->sc_scan_ch, 0); |
| 429 | sc->amrr.amrr_min_success_threshold = 1; |
| 430 | sc->amrr.amrr_max_success_threshold = 15; |
| 431 | callout_init(&sc->sc_amrr_ch, 0); |
| 432 | |
| 433 | /* retrieve RT2570 rev. no */ |
| 434 | sc->asic_rev = ural_read(sc, RAL_MAC_CSR0); |
| 435 | |
| 436 | /* retrieve MAC address and various other things from EEPROM */ |
| 437 | ural_read_eeprom(sc); |
| 438 | |
| 439 | aprint_normal_dev(self, "MAC/BBP RT2570 (rev 0x%02x), RF %s\n" , |
| 440 | sc->asic_rev, ural_get_rf(sc->rf_rev)); |
| 441 | |
| 442 | ifp->if_softc = sc; |
| 443 | memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
| 444 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; |
| 445 | ifp->if_init = ural_init; |
| 446 | ifp->if_ioctl = ural_ioctl; |
| 447 | ifp->if_start = ural_start; |
| 448 | ifp->if_watchdog = ural_watchdog; |
| 449 | IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); |
| 450 | IFQ_SET_READY(&ifp->if_snd); |
| 451 | |
| 452 | ic->ic_ifp = ifp; |
| 453 | ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ |
| 454 | ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ |
| 455 | ic->ic_state = IEEE80211_S_INIT; |
| 456 | |
| 457 | /* set device capabilities */ |
| 458 | ic->ic_caps = |
| 459 | IEEE80211_C_IBSS | /* IBSS mode supported */ |
| 460 | IEEE80211_C_MONITOR | /* monitor mode supported */ |
| 461 | IEEE80211_C_HOSTAP | /* HostAp mode supported */ |
| 462 | IEEE80211_C_TXPMGT | /* tx power management */ |
| 463 | IEEE80211_C_SHPREAMBLE | /* short preamble supported */ |
| 464 | IEEE80211_C_SHSLOT | /* short slot time supported */ |
| 465 | IEEE80211_C_WPA; /* 802.11i */ |
| 466 | |
| 467 | if (sc->rf_rev == RAL_RF_5222) { |
| 468 | /* set supported .11a rates */ |
| 469 | ic->ic_sup_rates[IEEE80211_MODE_11A] = ural_rateset_11a; |
| 470 | |
| 471 | /* set supported .11a channels */ |
| 472 | for (i = 36; i <= 64; i += 4) { |
| 473 | ic->ic_channels[i].ic_freq = |
| 474 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); |
| 475 | ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; |
| 476 | } |
| 477 | for (i = 100; i <= 140; i += 4) { |
| 478 | ic->ic_channels[i].ic_freq = |
| 479 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); |
| 480 | ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; |
| 481 | } |
| 482 | for (i = 149; i <= 161; i += 4) { |
| 483 | ic->ic_channels[i].ic_freq = |
| 484 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); |
| 485 | ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | /* set supported .11b and .11g rates */ |
| 490 | ic->ic_sup_rates[IEEE80211_MODE_11B] = ural_rateset_11b; |
| 491 | ic->ic_sup_rates[IEEE80211_MODE_11G] = ural_rateset_11g; |
| 492 | |
| 493 | /* set supported .11b and .11g channels (1 through 14) */ |
| 494 | for (i = 1; i <= 14; i++) { |
| 495 | ic->ic_channels[i].ic_freq = |
| 496 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); |
| 497 | ic->ic_channels[i].ic_flags = |
| 498 | IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | |
| 499 | IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; |
| 500 | } |
| 501 | |
| 502 | if_attach(ifp); |
| 503 | ieee80211_ifattach(ic); |
| 504 | ic->ic_reset = ural_reset; |
| 505 | |
| 506 | /* override state transition machine */ |
| 507 | sc->sc_newstate = ic->ic_newstate; |
| 508 | ic->ic_newstate = ural_newstate; |
| 509 | ieee80211_media_init(ic, ural_media_change, ieee80211_media_status); |
| 510 | |
| 511 | bpf_attach2(ifp, DLT_IEEE802_11_RADIO, |
| 512 | sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); |
| 513 | |
| 514 | sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); |
| 515 | sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); |
| 516 | sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT); |
| 517 | |
| 518 | sc->sc_txtap_len = sizeof(sc->sc_txtapu); |
| 519 | sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); |
| 520 | sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT); |
| 521 | |
| 522 | ieee80211_announce(ic); |
| 523 | |
| 524 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
| 525 | |
| 526 | if (!pmf_device_register(self, NULL, NULL)) |
| 527 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 528 | |
| 529 | return; |
| 530 | } |
| 531 | |
| 532 | int |
| 533 | ural_detach(device_t self, int flags) |
| 534 | { |
| 535 | struct ural_softc *sc = device_private(self); |
| 536 | struct ieee80211com *ic = &sc->sc_ic; |
| 537 | struct ifnet *ifp = &sc->sc_if; |
| 538 | int s; |
| 539 | |
| 540 | pmf_device_deregister(self); |
| 541 | |
| 542 | s = splusb(); |
| 543 | |
| 544 | ural_stop(ifp, 1); |
| 545 | usb_rem_task(sc->sc_udev, &sc->sc_task); |
| 546 | callout_stop(&sc->sc_scan_ch); |
| 547 | callout_stop(&sc->sc_amrr_ch); |
| 548 | |
| 549 | bpf_detach(ifp); |
| 550 | ieee80211_ifdetach(ic); |
| 551 | if_detach(ifp); |
| 552 | |
| 553 | splx(s); |
| 554 | |
| 555 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
| 556 | |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | Static int |
| 561 | ural_alloc_tx_list(struct ural_softc *sc) |
| 562 | { |
| 563 | struct ural_tx_data *data; |
| 564 | int i, error; |
| 565 | |
| 566 | sc->tx_queued = 0; |
| 567 | |
| 568 | for (i = 0; i < RAL_TX_LIST_COUNT; i++) { |
| 569 | data = &sc->tx_data[i]; |
| 570 | |
| 571 | data->sc = sc; |
| 572 | error = usbd_create_xfer(sc->sc_tx_pipeh, |
| 573 | RAL_TX_DESC_SIZE + MCLBYTES, USBD_FORCE_SHORT_XFER, 0, |
| 574 | &data->xfer); |
| 575 | if (error) { |
| 576 | printf("%s: could not allocate tx xfer\n" , |
| 577 | device_xname(sc->sc_dev)); |
| 578 | goto fail; |
| 579 | } |
| 580 | |
| 581 | data->buf = usbd_get_buffer(data->xfer); |
| 582 | } |
| 583 | |
| 584 | return 0; |
| 585 | |
| 586 | fail: ural_free_tx_list(sc); |
| 587 | return error; |
| 588 | } |
| 589 | |
| 590 | Static void |
| 591 | ural_free_tx_list(struct ural_softc *sc) |
| 592 | { |
| 593 | struct ural_tx_data *data; |
| 594 | int i; |
| 595 | |
| 596 | for (i = 0; i < RAL_TX_LIST_COUNT; i++) { |
| 597 | data = &sc->tx_data[i]; |
| 598 | |
| 599 | if (data->xfer != NULL) { |
| 600 | usbd_destroy_xfer(data->xfer); |
| 601 | data->xfer = NULL; |
| 602 | } |
| 603 | |
| 604 | if (data->ni != NULL) { |
| 605 | ieee80211_free_node(data->ni); |
| 606 | data->ni = NULL; |
| 607 | } |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | Static int |
| 612 | ural_alloc_rx_list(struct ural_softc *sc) |
| 613 | { |
| 614 | struct ural_rx_data *data; |
| 615 | int i, error; |
| 616 | |
| 617 | for (i = 0; i < RAL_RX_LIST_COUNT; i++) { |
| 618 | data = &sc->rx_data[i]; |
| 619 | |
| 620 | data->sc = sc; |
| 621 | |
| 622 | error = usbd_create_xfer(sc->sc_rx_pipeh, MCLBYTES, |
| 623 | USBD_SHORT_XFER_OK, 0, &data->xfer); |
| 624 | if (error) { |
| 625 | printf("%s: could not allocate rx xfer\n" , |
| 626 | device_xname(sc->sc_dev)); |
| 627 | goto fail; |
| 628 | } |
| 629 | |
| 630 | MGETHDR(data->m, M_DONTWAIT, MT_DATA); |
| 631 | if (data->m == NULL) { |
| 632 | printf("%s: could not allocate rx mbuf\n" , |
| 633 | device_xname(sc->sc_dev)); |
| 634 | error = ENOMEM; |
| 635 | goto fail; |
| 636 | } |
| 637 | |
| 638 | MCLGET(data->m, M_DONTWAIT); |
| 639 | if (!(data->m->m_flags & M_EXT)) { |
| 640 | printf("%s: could not allocate rx mbuf cluster\n" , |
| 641 | device_xname(sc->sc_dev)); |
| 642 | error = ENOMEM; |
| 643 | goto fail; |
| 644 | } |
| 645 | |
| 646 | data->buf = mtod(data->m, uint8_t *); |
| 647 | } |
| 648 | |
| 649 | return 0; |
| 650 | |
| 651 | fail: ural_free_tx_list(sc); |
| 652 | return error; |
| 653 | } |
| 654 | |
| 655 | Static void |
| 656 | ural_free_rx_list(struct ural_softc *sc) |
| 657 | { |
| 658 | struct ural_rx_data *data; |
| 659 | int i; |
| 660 | |
| 661 | for (i = 0; i < RAL_RX_LIST_COUNT; i++) { |
| 662 | data = &sc->rx_data[i]; |
| 663 | |
| 664 | if (data->xfer != NULL) { |
| 665 | usbd_destroy_xfer(data->xfer); |
| 666 | data->xfer = NULL; |
| 667 | } |
| 668 | |
| 669 | if (data->m != NULL) { |
| 670 | m_freem(data->m); |
| 671 | data->m = NULL; |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | Static int |
| 677 | ural_media_change(struct ifnet *ifp) |
| 678 | { |
| 679 | int error; |
| 680 | |
| 681 | error = ieee80211_media_change(ifp); |
| 682 | if (error != ENETRESET) |
| 683 | return error; |
| 684 | |
| 685 | if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) |
| 686 | ural_init(ifp); |
| 687 | |
| 688 | return 0; |
| 689 | } |
| 690 | |
| 691 | /* |
| 692 | * This function is called periodically (every 200ms) during scanning to |
| 693 | * switch from one channel to another. |
| 694 | */ |
| 695 | Static void |
| 696 | ural_next_scan(void *arg) |
| 697 | { |
| 698 | struct ural_softc *sc = arg; |
| 699 | struct ieee80211com *ic = &sc->sc_ic; |
| 700 | |
| 701 | if (ic->ic_state == IEEE80211_S_SCAN) |
| 702 | ieee80211_next_scan(ic); |
| 703 | } |
| 704 | |
| 705 | Static void |
| 706 | ural_task(void *arg) |
| 707 | { |
| 708 | struct ural_softc *sc = arg; |
| 709 | struct ieee80211com *ic = &sc->sc_ic; |
| 710 | enum ieee80211_state ostate; |
| 711 | struct ieee80211_node *ni; |
| 712 | struct mbuf *m; |
| 713 | |
| 714 | ostate = ic->ic_state; |
| 715 | |
| 716 | switch (sc->sc_state) { |
| 717 | case IEEE80211_S_INIT: |
| 718 | if (ostate == IEEE80211_S_RUN) { |
| 719 | /* abort TSF synchronization */ |
| 720 | ural_write(sc, RAL_TXRX_CSR19, 0); |
| 721 | |
| 722 | /* force tx led to stop blinking */ |
| 723 | ural_write(sc, RAL_MAC_CSR20, 0); |
| 724 | } |
| 725 | break; |
| 726 | |
| 727 | case IEEE80211_S_SCAN: |
| 728 | ural_set_chan(sc, ic->ic_curchan); |
| 729 | callout_reset(&sc->sc_scan_ch, hz / 5, ural_next_scan, sc); |
| 730 | break; |
| 731 | |
| 732 | case IEEE80211_S_AUTH: |
| 733 | ural_set_chan(sc, ic->ic_curchan); |
| 734 | break; |
| 735 | |
| 736 | case IEEE80211_S_ASSOC: |
| 737 | ural_set_chan(sc, ic->ic_curchan); |
| 738 | break; |
| 739 | |
| 740 | case IEEE80211_S_RUN: |
| 741 | ural_set_chan(sc, ic->ic_curchan); |
| 742 | |
| 743 | ni = ic->ic_bss; |
| 744 | |
| 745 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 746 | ural_update_slot(ic->ic_ifp); |
| 747 | ural_set_txpreamble(sc); |
| 748 | ural_set_basicrates(sc); |
| 749 | ural_set_bssid(sc, ni->ni_bssid); |
| 750 | } |
| 751 | |
| 752 | if (ic->ic_opmode == IEEE80211_M_HOSTAP || |
| 753 | ic->ic_opmode == IEEE80211_M_IBSS) { |
| 754 | m = ieee80211_beacon_alloc(ic, ni, &sc->sc_bo); |
| 755 | if (m == NULL) { |
| 756 | printf("%s: could not allocate beacon\n" , |
| 757 | device_xname(sc->sc_dev)); |
| 758 | return; |
| 759 | } |
| 760 | |
| 761 | if (ural_tx_bcn(sc, m, ni) != 0) { |
| 762 | m_freem(m); |
| 763 | printf("%s: could not send beacon\n" , |
| 764 | device_xname(sc->sc_dev)); |
| 765 | return; |
| 766 | } |
| 767 | |
| 768 | /* beacon is no longer needed */ |
| 769 | m_freem(m); |
| 770 | } |
| 771 | |
| 772 | /* make tx led blink on tx (controlled by ASIC) */ |
| 773 | ural_write(sc, RAL_MAC_CSR20, 1); |
| 774 | |
| 775 | if (ic->ic_opmode != IEEE80211_M_MONITOR) |
| 776 | ural_enable_tsf_sync(sc); |
| 777 | |
| 778 | /* enable automatic rate adaptation in STA mode */ |
| 779 | if (ic->ic_opmode == IEEE80211_M_STA && |
| 780 | ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) |
| 781 | ural_amrr_start(sc, ni); |
| 782 | |
| 783 | break; |
| 784 | } |
| 785 | |
| 786 | sc->sc_newstate(ic, sc->sc_state, -1); |
| 787 | } |
| 788 | |
| 789 | Static int |
| 790 | ural_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, |
| 791 | int arg) |
| 792 | { |
| 793 | struct ural_softc *sc = ic->ic_ifp->if_softc; |
| 794 | |
| 795 | usb_rem_task(sc->sc_udev, &sc->sc_task); |
| 796 | callout_stop(&sc->sc_scan_ch); |
| 797 | callout_stop(&sc->sc_amrr_ch); |
| 798 | |
| 799 | /* do it in a process context */ |
| 800 | sc->sc_state = nstate; |
| 801 | usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER); |
| 802 | |
| 803 | return 0; |
| 804 | } |
| 805 | |
| 806 | /* quickly determine if a given rate is CCK or OFDM */ |
| 807 | #define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) |
| 808 | |
| 809 | #define RAL_ACK_SIZE 14 /* 10 + 4(FCS) */ |
| 810 | #define RAL_CTS_SIZE 14 /* 10 + 4(FCS) */ |
| 811 | |
| 812 | #define RAL_SIFS 10 /* us */ |
| 813 | |
| 814 | #define RAL_RXTX_TURNAROUND 5 /* us */ |
| 815 | |
| 816 | /* |
| 817 | * This function is only used by the Rx radiotap code. |
| 818 | */ |
| 819 | Static int |
| 820 | ural_rxrate(struct ural_rx_desc *desc) |
| 821 | { |
| 822 | if (le32toh(desc->flags) & RAL_RX_OFDM) { |
| 823 | /* reverse function of ural_plcp_signal */ |
| 824 | switch (desc->rate) { |
| 825 | case 0xb: return 12; |
| 826 | case 0xf: return 18; |
| 827 | case 0xa: return 24; |
| 828 | case 0xe: return 36; |
| 829 | case 0x9: return 48; |
| 830 | case 0xd: return 72; |
| 831 | case 0x8: return 96; |
| 832 | case 0xc: return 108; |
| 833 | } |
| 834 | } else { |
| 835 | if (desc->rate == 10) |
| 836 | return 2; |
| 837 | if (desc->rate == 20) |
| 838 | return 4; |
| 839 | if (desc->rate == 55) |
| 840 | return 11; |
| 841 | if (desc->rate == 110) |
| 842 | return 22; |
| 843 | } |
| 844 | return 2; /* should not get there */ |
| 845 | } |
| 846 | |
| 847 | Static void |
| 848 | ural_txeof(struct usbd_xfer *xfer, void * priv, |
| 849 | usbd_status status) |
| 850 | { |
| 851 | struct ural_tx_data *data = priv; |
| 852 | struct ural_softc *sc = data->sc; |
| 853 | struct ifnet *ifp = &sc->sc_if; |
| 854 | int s; |
| 855 | |
| 856 | if (status != USBD_NORMAL_COMPLETION) { |
| 857 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 858 | return; |
| 859 | |
| 860 | printf("%s: could not transmit buffer: %s\n" , |
| 861 | device_xname(sc->sc_dev), usbd_errstr(status)); |
| 862 | |
| 863 | if (status == USBD_STALLED) |
| 864 | usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh); |
| 865 | |
| 866 | ifp->if_oerrors++; |
| 867 | return; |
| 868 | } |
| 869 | |
| 870 | s = splnet(); |
| 871 | |
| 872 | m_freem(data->m); |
| 873 | data->m = NULL; |
| 874 | ieee80211_free_node(data->ni); |
| 875 | data->ni = NULL; |
| 876 | |
| 877 | sc->tx_queued--; |
| 878 | ifp->if_opackets++; |
| 879 | |
| 880 | DPRINTFN(10, ("tx done\n" )); |
| 881 | |
| 882 | sc->sc_tx_timer = 0; |
| 883 | ifp->if_flags &= ~IFF_OACTIVE; |
| 884 | ural_start(ifp); |
| 885 | |
| 886 | splx(s); |
| 887 | } |
| 888 | |
| 889 | Static void |
| 890 | ural_rxeof(struct usbd_xfer *xfer, void * priv, usbd_status status) |
| 891 | { |
| 892 | struct ural_rx_data *data = priv; |
| 893 | struct ural_softc *sc = data->sc; |
| 894 | struct ieee80211com *ic = &sc->sc_ic; |
| 895 | struct ifnet *ifp = &sc->sc_if; |
| 896 | struct ural_rx_desc *desc; |
| 897 | struct ieee80211_frame *wh; |
| 898 | struct ieee80211_node *ni; |
| 899 | struct mbuf *mnew, *m; |
| 900 | int s, len; |
| 901 | |
| 902 | if (status != USBD_NORMAL_COMPLETION) { |
| 903 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 904 | return; |
| 905 | |
| 906 | if (status == USBD_STALLED) |
| 907 | usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh); |
| 908 | goto skip; |
| 909 | } |
| 910 | |
| 911 | usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); |
| 912 | |
| 913 | if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) { |
| 914 | DPRINTF(("%s: xfer too short %d\n" , device_xname(sc->sc_dev), |
| 915 | len)); |
| 916 | ifp->if_ierrors++; |
| 917 | goto skip; |
| 918 | } |
| 919 | |
| 920 | /* rx descriptor is located at the end */ |
| 921 | desc = (struct ural_rx_desc *)(data->buf + len - RAL_RX_DESC_SIZE); |
| 922 | |
| 923 | if ((le32toh(desc->flags) & RAL_RX_PHY_ERROR) || |
| 924 | (le32toh(desc->flags) & RAL_RX_CRC_ERROR)) { |
| 925 | /* |
| 926 | * This should not happen since we did not request to receive |
| 927 | * those frames when we filled RAL_TXRX_CSR2. |
| 928 | */ |
| 929 | DPRINTFN(5, ("PHY or CRC error\n" )); |
| 930 | ifp->if_ierrors++; |
| 931 | goto skip; |
| 932 | } |
| 933 | |
| 934 | MGETHDR(mnew, M_DONTWAIT, MT_DATA); |
| 935 | if (mnew == NULL) { |
| 936 | ifp->if_ierrors++; |
| 937 | goto skip; |
| 938 | } |
| 939 | |
| 940 | MCLGET(mnew, M_DONTWAIT); |
| 941 | if (!(mnew->m_flags & M_EXT)) { |
| 942 | ifp->if_ierrors++; |
| 943 | m_freem(mnew); |
| 944 | goto skip; |
| 945 | } |
| 946 | |
| 947 | m = data->m; |
| 948 | data->m = mnew; |
| 949 | data->buf = mtod(data->m, uint8_t *); |
| 950 | |
| 951 | /* finalize mbuf */ |
| 952 | m_set_rcvif(m, ifp); |
| 953 | m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff; |
| 954 | m->m_flags |= M_HASFCS; /* h/w leaves FCS */ |
| 955 | |
| 956 | s = splnet(); |
| 957 | |
| 958 | if (sc->sc_drvbpf != NULL) { |
| 959 | struct ural_rx_radiotap_header *tap = &sc->sc_rxtap; |
| 960 | |
| 961 | tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; |
| 962 | tap->wr_rate = ural_rxrate(desc); |
| 963 | tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); |
| 964 | tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); |
| 965 | tap->wr_antenna = sc->rx_ant; |
| 966 | tap->wr_antsignal = desc->rssi; |
| 967 | |
| 968 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); |
| 969 | } |
| 970 | |
| 971 | wh = mtod(m, struct ieee80211_frame *); |
| 972 | ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); |
| 973 | |
| 974 | /* send the frame to the 802.11 layer */ |
| 975 | ieee80211_input(ic, m, ni, desc->rssi, 0); |
| 976 | |
| 977 | /* node is no longer needed */ |
| 978 | ieee80211_free_node(ni); |
| 979 | |
| 980 | splx(s); |
| 981 | |
| 982 | DPRINTFN(15, ("rx done\n" )); |
| 983 | |
| 984 | skip: /* setup a new transfer */ |
| 985 | usbd_setup_xfer(xfer, data, data->buf, MCLBYTES, |
| 986 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof); |
| 987 | usbd_transfer(xfer); |
| 988 | } |
| 989 | |
| 990 | /* |
| 991 | * Return the expected ack rate for a frame transmitted at rate `rate'. |
| 992 | * XXX: this should depend on the destination node basic rate set. |
| 993 | */ |
| 994 | Static int |
| 995 | ural_ack_rate(struct ieee80211com *ic, int rate) |
| 996 | { |
| 997 | switch (rate) { |
| 998 | /* CCK rates */ |
| 999 | case 2: |
| 1000 | return 2; |
| 1001 | case 4: |
| 1002 | case 11: |
| 1003 | case 22: |
| 1004 | return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate; |
| 1005 | |
| 1006 | /* OFDM rates */ |
| 1007 | case 12: |
| 1008 | case 18: |
| 1009 | return 12; |
| 1010 | case 24: |
| 1011 | case 36: |
| 1012 | return 24; |
| 1013 | case 48: |
| 1014 | case 72: |
| 1015 | case 96: |
| 1016 | case 108: |
| 1017 | return 48; |
| 1018 | } |
| 1019 | |
| 1020 | /* default to 1Mbps */ |
| 1021 | return 2; |
| 1022 | } |
| 1023 | |
| 1024 | /* |
| 1025 | * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'. |
| 1026 | * The function automatically determines the operating mode depending on the |
| 1027 | * given rate. `flags' indicates whether short preamble is in use or not. |
| 1028 | */ |
| 1029 | Static uint16_t |
| 1030 | ural_txtime(int len, int rate, uint32_t flags) |
| 1031 | { |
| 1032 | uint16_t txtime; |
| 1033 | |
| 1034 | if (RAL_RATE_IS_OFDM(rate)) { |
| 1035 | /* IEEE Std 802.11g-2003, pp. 37 */ |
| 1036 | txtime = (8 + 4 * len + 3 + rate - 1) / rate; |
| 1037 | txtime = 16 + 4 + 4 * txtime + 6; |
| 1038 | } else { |
| 1039 | /* IEEE Std 802.11b-1999, pp. 28 */ |
| 1040 | txtime = (16 * len + rate - 1) / rate; |
| 1041 | if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE)) |
| 1042 | txtime += 72 + 24; |
| 1043 | else |
| 1044 | txtime += 144 + 48; |
| 1045 | } |
| 1046 | return txtime; |
| 1047 | } |
| 1048 | |
| 1049 | Static uint8_t |
| 1050 | ural_plcp_signal(int rate) |
| 1051 | { |
| 1052 | switch (rate) { |
| 1053 | /* CCK rates (returned values are device-dependent) */ |
| 1054 | case 2: return 0x0; |
| 1055 | case 4: return 0x1; |
| 1056 | case 11: return 0x2; |
| 1057 | case 22: return 0x3; |
| 1058 | |
| 1059 | /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ |
| 1060 | case 12: return 0xb; |
| 1061 | case 18: return 0xf; |
| 1062 | case 24: return 0xa; |
| 1063 | case 36: return 0xe; |
| 1064 | case 48: return 0x9; |
| 1065 | case 72: return 0xd; |
| 1066 | case 96: return 0x8; |
| 1067 | case 108: return 0xc; |
| 1068 | |
| 1069 | /* unsupported rates (should not get there) */ |
| 1070 | default: return 0xff; |
| 1071 | } |
| 1072 | } |
| 1073 | |
| 1074 | Static void |
| 1075 | ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc, |
| 1076 | uint32_t flags, int len, int rate) |
| 1077 | { |
| 1078 | struct ieee80211com *ic = &sc->sc_ic; |
| 1079 | uint16_t plcp_length; |
| 1080 | int remainder; |
| 1081 | |
| 1082 | desc->flags = htole32(flags); |
| 1083 | desc->flags |= htole32(RAL_TX_NEWSEQ); |
| 1084 | desc->flags |= htole32(len << 16); |
| 1085 | |
| 1086 | desc->wme = htole16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5)); |
| 1087 | desc->wme |= htole16(RAL_IVOFFSET(sizeof(struct ieee80211_frame))); |
| 1088 | |
| 1089 | /* setup PLCP fields */ |
| 1090 | desc->plcp_signal = ural_plcp_signal(rate); |
| 1091 | desc->plcp_service = 4; |
| 1092 | |
| 1093 | len += IEEE80211_CRC_LEN; |
| 1094 | if (RAL_RATE_IS_OFDM(rate)) { |
| 1095 | desc->flags |= htole32(RAL_TX_OFDM); |
| 1096 | |
| 1097 | plcp_length = len & 0xfff; |
| 1098 | desc->plcp_length_hi = plcp_length >> 6; |
| 1099 | desc->plcp_length_lo = plcp_length & 0x3f; |
| 1100 | } else { |
| 1101 | plcp_length = (16 * len + rate - 1) / rate; |
| 1102 | if (rate == 22) { |
| 1103 | remainder = (16 * len) % 22; |
| 1104 | if (remainder != 0 && remainder < 7) |
| 1105 | desc->plcp_service |= RAL_PLCP_LENGEXT; |
| 1106 | } |
| 1107 | desc->plcp_length_hi = plcp_length >> 8; |
| 1108 | desc->plcp_length_lo = plcp_length & 0xff; |
| 1109 | |
| 1110 | if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) |
| 1111 | desc->plcp_signal |= 0x08; |
| 1112 | } |
| 1113 | |
| 1114 | desc->iv = 0; |
| 1115 | desc->eiv = 0; |
| 1116 | } |
| 1117 | |
| 1118 | #define RAL_TX_TIMEOUT 5000 |
| 1119 | |
| 1120 | Static int |
| 1121 | ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) |
| 1122 | { |
| 1123 | struct ural_tx_desc *desc; |
| 1124 | struct usbd_xfer *xfer; |
| 1125 | uint8_t cmd = 0; |
| 1126 | usbd_status error; |
| 1127 | uint8_t *buf; |
| 1128 | int xferlen, rate; |
| 1129 | |
| 1130 | rate = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? 12 : 2; |
| 1131 | |
| 1132 | /* xfer length needs to be a multiple of two! */ |
| 1133 | xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1; |
| 1134 | |
| 1135 | error = usbd_create_xfer(sc->sc_tx_pipeh, xferlen, |
| 1136 | USBD_FORCE_SHORT_XFER, 0, &xfer); |
| 1137 | if (error) |
| 1138 | return error; |
| 1139 | |
| 1140 | buf = usbd_get_buffer(xfer); |
| 1141 | |
| 1142 | usbd_setup_xfer(xfer, NULL, &cmd, sizeof(cmd), USBD_FORCE_SHORT_XFER, |
| 1143 | RAL_TX_TIMEOUT, NULL); |
| 1144 | |
| 1145 | error = usbd_sync_transfer(xfer); |
| 1146 | if (error != 0) { |
| 1147 | usbd_destroy_xfer(xfer); |
| 1148 | return error; |
| 1149 | } |
| 1150 | |
| 1151 | desc = (struct ural_tx_desc *)buf; |
| 1152 | |
| 1153 | m_copydata(m0, 0, m0->m_pkthdr.len, buf + RAL_TX_DESC_SIZE); |
| 1154 | ural_setup_tx_desc(sc, desc, RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP, |
| 1155 | m0->m_pkthdr.len, rate); |
| 1156 | |
| 1157 | DPRINTFN(10, ("sending beacon frame len=%u rate=%u xfer len=%u\n" , |
| 1158 | m0->m_pkthdr.len, rate, xferlen)); |
| 1159 | |
| 1160 | usbd_setup_xfer(xfer, NULL, buf, xferlen, USBD_FORCE_SHORT_XFER, |
| 1161 | RAL_TX_TIMEOUT, NULL); |
| 1162 | |
| 1163 | error = usbd_sync_transfer(xfer); |
| 1164 | usbd_destroy_xfer(xfer); |
| 1165 | |
| 1166 | return error; |
| 1167 | } |
| 1168 | |
| 1169 | Static int |
| 1170 | ural_tx_mgt(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) |
| 1171 | { |
| 1172 | struct ieee80211com *ic = &sc->sc_ic; |
| 1173 | struct ural_tx_desc *desc; |
| 1174 | struct ural_tx_data *data; |
| 1175 | struct ieee80211_frame *wh; |
| 1176 | struct ieee80211_key *k; |
| 1177 | uint32_t flags = 0; |
| 1178 | uint16_t dur; |
| 1179 | usbd_status error; |
| 1180 | int xferlen, rate; |
| 1181 | |
| 1182 | data = &sc->tx_data[0]; |
| 1183 | desc = (struct ural_tx_desc *)data->buf; |
| 1184 | |
| 1185 | rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; |
| 1186 | |
| 1187 | wh = mtod(m0, struct ieee80211_frame *); |
| 1188 | |
| 1189 | if (wh->i_fc[1] & IEEE80211_FC1_WEP) { |
| 1190 | k = ieee80211_crypto_encap(ic, ni, m0); |
| 1191 | if (k == NULL) { |
| 1192 | m_freem(m0); |
| 1193 | return ENOBUFS; |
| 1194 | } |
| 1195 | } |
| 1196 | |
| 1197 | data->m = m0; |
| 1198 | data->ni = ni; |
| 1199 | |
| 1200 | wh = mtod(m0, struct ieee80211_frame *); |
| 1201 | |
| 1202 | if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { |
| 1203 | flags |= RAL_TX_ACK; |
| 1204 | |
| 1205 | dur = ural_txtime(RAL_ACK_SIZE, rate, ic->ic_flags) + RAL_SIFS; |
| 1206 | *(uint16_t *)wh->i_dur = htole16(dur); |
| 1207 | |
| 1208 | /* tell hardware to add timestamp for probe responses */ |
| 1209 | if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == |
| 1210 | IEEE80211_FC0_TYPE_MGT && |
| 1211 | (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == |
| 1212 | IEEE80211_FC0_SUBTYPE_PROBE_RESP) |
| 1213 | flags |= RAL_TX_TIMESTAMP; |
| 1214 | } |
| 1215 | |
| 1216 | if (sc->sc_drvbpf != NULL) { |
| 1217 | struct ural_tx_radiotap_header *tap = &sc->sc_txtap; |
| 1218 | |
| 1219 | tap->wt_flags = 0; |
| 1220 | tap->wt_rate = rate; |
| 1221 | tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); |
| 1222 | tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); |
| 1223 | tap->wt_antenna = sc->tx_ant; |
| 1224 | |
| 1225 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); |
| 1226 | } |
| 1227 | |
| 1228 | m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE); |
| 1229 | ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate); |
| 1230 | |
| 1231 | /* align end on a 2-bytes boundary */ |
| 1232 | xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1; |
| 1233 | |
| 1234 | /* |
| 1235 | * No space left in the last URB to store the extra 2 bytes, force |
| 1236 | * sending of another URB. |
| 1237 | */ |
| 1238 | if ((xferlen % 64) == 0) |
| 1239 | xferlen += 2; |
| 1240 | |
| 1241 | DPRINTFN(10, ("sending mgt frame len=%u rate=%u xfer len=%u\n" , |
| 1242 | m0->m_pkthdr.len, rate, xferlen)); |
| 1243 | |
| 1244 | usbd_setup_xfer(data->xfer, data, data->buf, xferlen, |
| 1245 | USBD_FORCE_SHORT_XFER, RAL_TX_TIMEOUT, ural_txeof); |
| 1246 | |
| 1247 | error = usbd_transfer(data->xfer); |
| 1248 | if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { |
| 1249 | m_freem(m0); |
| 1250 | return error; |
| 1251 | } |
| 1252 | |
| 1253 | sc->tx_queued++; |
| 1254 | |
| 1255 | return 0; |
| 1256 | } |
| 1257 | |
| 1258 | Static int |
| 1259 | ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) |
| 1260 | { |
| 1261 | struct ieee80211com *ic = &sc->sc_ic; |
| 1262 | struct ural_tx_desc *desc; |
| 1263 | struct ural_tx_data *data; |
| 1264 | struct ieee80211_frame *wh; |
| 1265 | struct ieee80211_key *k; |
| 1266 | uint32_t flags = 0; |
| 1267 | uint16_t dur; |
| 1268 | usbd_status error; |
| 1269 | int xferlen, rate; |
| 1270 | |
| 1271 | wh = mtod(m0, struct ieee80211_frame *); |
| 1272 | |
| 1273 | if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) |
| 1274 | rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_fixed_rate]; |
| 1275 | else |
| 1276 | rate = ni->ni_rates.rs_rates[ni->ni_txrate]; |
| 1277 | |
| 1278 | rate &= IEEE80211_RATE_VAL; |
| 1279 | |
| 1280 | if (wh->i_fc[1] & IEEE80211_FC1_WEP) { |
| 1281 | k = ieee80211_crypto_encap(ic, 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 | data = &sc->tx_data[0]; |
| 1292 | desc = (struct ural_tx_desc *)data->buf; |
| 1293 | |
| 1294 | data->m = m0; |
| 1295 | data->ni = ni; |
| 1296 | |
| 1297 | if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { |
| 1298 | flags |= RAL_TX_ACK; |
| 1299 | flags |= RAL_TX_RETRY(7); |
| 1300 | |
| 1301 | dur = ural_txtime(RAL_ACK_SIZE, ural_ack_rate(ic, rate), |
| 1302 | ic->ic_flags) + RAL_SIFS; |
| 1303 | *(uint16_t *)wh->i_dur = htole16(dur); |
| 1304 | } |
| 1305 | |
| 1306 | if (sc->sc_drvbpf != NULL) { |
| 1307 | struct ural_tx_radiotap_header *tap = &sc->sc_txtap; |
| 1308 | |
| 1309 | tap->wt_flags = 0; |
| 1310 | tap->wt_rate = rate; |
| 1311 | tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); |
| 1312 | tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); |
| 1313 | tap->wt_antenna = sc->tx_ant; |
| 1314 | |
| 1315 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); |
| 1316 | } |
| 1317 | |
| 1318 | m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE); |
| 1319 | ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate); |
| 1320 | |
| 1321 | /* align end on a 2-bytes boundary */ |
| 1322 | xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1; |
| 1323 | |
| 1324 | /* |
| 1325 | * No space left in the last URB to store the extra 2 bytes, force |
| 1326 | * sending of another URB. |
| 1327 | */ |
| 1328 | if ((xferlen % 64) == 0) |
| 1329 | xferlen += 2; |
| 1330 | |
| 1331 | DPRINTFN(10, ("sending data frame len=%u rate=%u xfer len=%u\n" , |
| 1332 | m0->m_pkthdr.len, rate, xferlen)); |
| 1333 | usbd_setup_xfer(data->xfer, data, data->buf, xferlen, |
| 1334 | USBD_FORCE_SHORT_XFER, RAL_TX_TIMEOUT, ural_txeof); |
| 1335 | |
| 1336 | error = usbd_transfer(data->xfer); |
| 1337 | if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) |
| 1338 | return error; |
| 1339 | |
| 1340 | sc->tx_queued++; |
| 1341 | |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | Static void |
| 1346 | ural_start(struct ifnet *ifp) |
| 1347 | { |
| 1348 | struct ural_softc *sc = ifp->if_softc; |
| 1349 | struct ieee80211com *ic = &sc->sc_ic; |
| 1350 | struct mbuf *m0; |
| 1351 | struct ether_header *eh; |
| 1352 | struct ieee80211_node *ni; |
| 1353 | |
| 1354 | for (;;) { |
| 1355 | IF_POLL(&ic->ic_mgtq, m0); |
| 1356 | if (m0 != NULL) { |
| 1357 | if (sc->tx_queued >= RAL_TX_LIST_COUNT) { |
| 1358 | ifp->if_flags |= IFF_OACTIVE; |
| 1359 | break; |
| 1360 | } |
| 1361 | IF_DEQUEUE(&ic->ic_mgtq, m0); |
| 1362 | |
| 1363 | ni = M_GETCTX(m0, struct ieee80211_node *); |
| 1364 | M_CLEARCTX(m0); |
| 1365 | bpf_mtap3(ic->ic_rawbpf, m0); |
| 1366 | if (ural_tx_mgt(sc, m0, ni) != 0) |
| 1367 | break; |
| 1368 | |
| 1369 | } else { |
| 1370 | if (ic->ic_state != IEEE80211_S_RUN) |
| 1371 | break; |
| 1372 | IFQ_DEQUEUE(&ifp->if_snd, m0); |
| 1373 | if (m0 == NULL) |
| 1374 | break; |
| 1375 | if (sc->tx_queued >= RAL_TX_LIST_COUNT) { |
| 1376 | IF_PREPEND(&ifp->if_snd, m0); |
| 1377 | ifp->if_flags |= IFF_OACTIVE; |
| 1378 | break; |
| 1379 | } |
| 1380 | |
| 1381 | if (m0->m_len < sizeof(struct ether_header) && |
| 1382 | !(m0 = m_pullup(m0, sizeof(struct ether_header)))) |
| 1383 | continue; |
| 1384 | |
| 1385 | eh = mtod(m0, struct ether_header *); |
| 1386 | ni = ieee80211_find_txnode(ic, eh->ether_dhost); |
| 1387 | if (ni == NULL) { |
| 1388 | m_freem(m0); |
| 1389 | continue; |
| 1390 | } |
| 1391 | bpf_mtap(ifp, m0); |
| 1392 | m0 = ieee80211_encap(ic, m0, ni); |
| 1393 | if (m0 == NULL) { |
| 1394 | ieee80211_free_node(ni); |
| 1395 | continue; |
| 1396 | } |
| 1397 | bpf_mtap3(ic->ic_rawbpf, m0); |
| 1398 | if (ural_tx_data(sc, m0, ni) != 0) { |
| 1399 | ieee80211_free_node(ni); |
| 1400 | ifp->if_oerrors++; |
| 1401 | break; |
| 1402 | } |
| 1403 | } |
| 1404 | |
| 1405 | sc->sc_tx_timer = 5; |
| 1406 | ifp->if_timer = 1; |
| 1407 | } |
| 1408 | } |
| 1409 | |
| 1410 | Static void |
| 1411 | ural_watchdog(struct ifnet *ifp) |
| 1412 | { |
| 1413 | struct ural_softc *sc = ifp->if_softc; |
| 1414 | struct ieee80211com *ic = &sc->sc_ic; |
| 1415 | |
| 1416 | ifp->if_timer = 0; |
| 1417 | |
| 1418 | if (sc->sc_tx_timer > 0) { |
| 1419 | if (--sc->sc_tx_timer == 0) { |
| 1420 | printf("%s: device timeout\n" , device_xname(sc->sc_dev)); |
| 1421 | /*ural_init(sc); XXX needs a process context! */ |
| 1422 | ifp->if_oerrors++; |
| 1423 | return; |
| 1424 | } |
| 1425 | ifp->if_timer = 1; |
| 1426 | } |
| 1427 | |
| 1428 | ieee80211_watchdog(ic); |
| 1429 | } |
| 1430 | |
| 1431 | /* |
| 1432 | * This function allows for fast channel switching in monitor mode (used by |
| 1433 | * net-mgmt/kismet). In IBSS mode, we must explicitly reset the interface to |
| 1434 | * generate a new beacon frame. |
| 1435 | */ |
| 1436 | Static int |
| 1437 | ural_reset(struct ifnet *ifp) |
| 1438 | { |
| 1439 | struct ural_softc *sc = ifp->if_softc; |
| 1440 | struct ieee80211com *ic = &sc->sc_ic; |
| 1441 | |
| 1442 | if (ic->ic_opmode != IEEE80211_M_MONITOR) |
| 1443 | return ENETRESET; |
| 1444 | |
| 1445 | ural_set_chan(sc, ic->ic_curchan); |
| 1446 | |
| 1447 | return 0; |
| 1448 | } |
| 1449 | |
| 1450 | Static int |
| 1451 | ural_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
| 1452 | { |
| 1453 | #define IS_RUNNING(ifp) \ |
| 1454 | (((ifp)->if_flags & IFF_UP) && ((ifp)->if_flags & IFF_RUNNING)) |
| 1455 | |
| 1456 | struct ural_softc *sc = ifp->if_softc; |
| 1457 | struct ieee80211com *ic = &sc->sc_ic; |
| 1458 | int s, error = 0; |
| 1459 | |
| 1460 | s = splnet(); |
| 1461 | |
| 1462 | switch (cmd) { |
| 1463 | case SIOCSIFFLAGS: |
| 1464 | if ((error = ifioctl_common(ifp, cmd, data)) != 0) |
| 1465 | break; |
| 1466 | /* XXX re-use ether_ioctl() */ |
| 1467 | switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { |
| 1468 | case IFF_UP|IFF_RUNNING: |
| 1469 | ural_update_promisc(sc); |
| 1470 | break; |
| 1471 | case IFF_UP: |
| 1472 | ural_init(ifp); |
| 1473 | break; |
| 1474 | case IFF_RUNNING: |
| 1475 | ural_stop(ifp, 1); |
| 1476 | break; |
| 1477 | case 0: |
| 1478 | break; |
| 1479 | } |
| 1480 | break; |
| 1481 | |
| 1482 | case SIOCADDMULTI: |
| 1483 | case SIOCDELMULTI: |
| 1484 | if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { |
| 1485 | error = 0; |
| 1486 | } |
| 1487 | break; |
| 1488 | |
| 1489 | default: |
| 1490 | error = ieee80211_ioctl(ic, cmd, data); |
| 1491 | } |
| 1492 | |
| 1493 | if (error == ENETRESET) { |
| 1494 | if (IS_RUNNING(ifp) && |
| 1495 | (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) |
| 1496 | ural_init(ifp); |
| 1497 | error = 0; |
| 1498 | } |
| 1499 | |
| 1500 | splx(s); |
| 1501 | |
| 1502 | return error; |
| 1503 | #undef IS_RUNNING |
| 1504 | } |
| 1505 | |
| 1506 | Static void |
| 1507 | ural_set_testmode(struct ural_softc *sc) |
| 1508 | { |
| 1509 | usb_device_request_t req; |
| 1510 | usbd_status error; |
| 1511 | |
| 1512 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
| 1513 | req.bRequest = RAL_VENDOR_REQUEST; |
| 1514 | USETW(req.wValue, 4); |
| 1515 | USETW(req.wIndex, 1); |
| 1516 | USETW(req.wLength, 0); |
| 1517 | |
| 1518 | error = usbd_do_request(sc->sc_udev, &req, NULL); |
| 1519 | if (error != 0) { |
| 1520 | printf("%s: could not set test mode: %s\n" , |
| 1521 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 1522 | } |
| 1523 | } |
| 1524 | |
| 1525 | Static void |
| 1526 | ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len) |
| 1527 | { |
| 1528 | usb_device_request_t req; |
| 1529 | usbd_status error; |
| 1530 | |
| 1531 | req.bmRequestType = UT_READ_VENDOR_DEVICE; |
| 1532 | req.bRequest = RAL_READ_EEPROM; |
| 1533 | USETW(req.wValue, 0); |
| 1534 | USETW(req.wIndex, addr); |
| 1535 | USETW(req.wLength, len); |
| 1536 | |
| 1537 | error = usbd_do_request(sc->sc_udev, &req, buf); |
| 1538 | if (error != 0) { |
| 1539 | printf("%s: could not read EEPROM: %s\n" , |
| 1540 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 1541 | } |
| 1542 | } |
| 1543 | |
| 1544 | Static uint16_t |
| 1545 | ural_read(struct ural_softc *sc, uint16_t reg) |
| 1546 | { |
| 1547 | usb_device_request_t req; |
| 1548 | usbd_status error; |
| 1549 | uint16_t val; |
| 1550 | |
| 1551 | req.bmRequestType = UT_READ_VENDOR_DEVICE; |
| 1552 | req.bRequest = RAL_READ_MAC; |
| 1553 | USETW(req.wValue, 0); |
| 1554 | USETW(req.wIndex, reg); |
| 1555 | USETW(req.wLength, sizeof(uint16_t)); |
| 1556 | |
| 1557 | error = usbd_do_request(sc->sc_udev, &req, &val); |
| 1558 | if (error != 0) { |
| 1559 | printf("%s: could not read MAC register: %s\n" , |
| 1560 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 1561 | return 0; |
| 1562 | } |
| 1563 | |
| 1564 | return le16toh(val); |
| 1565 | } |
| 1566 | |
| 1567 | Static void |
| 1568 | ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len) |
| 1569 | { |
| 1570 | usb_device_request_t req; |
| 1571 | usbd_status error; |
| 1572 | |
| 1573 | req.bmRequestType = UT_READ_VENDOR_DEVICE; |
| 1574 | req.bRequest = RAL_READ_MULTI_MAC; |
| 1575 | USETW(req.wValue, 0); |
| 1576 | USETW(req.wIndex, reg); |
| 1577 | USETW(req.wLength, len); |
| 1578 | |
| 1579 | error = usbd_do_request(sc->sc_udev, &req, buf); |
| 1580 | if (error != 0) { |
| 1581 | printf("%s: could not read MAC register: %s\n" , |
| 1582 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 1583 | } |
| 1584 | } |
| 1585 | |
| 1586 | Static void |
| 1587 | ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val) |
| 1588 | { |
| 1589 | usb_device_request_t req; |
| 1590 | usbd_status error; |
| 1591 | |
| 1592 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
| 1593 | req.bRequest = RAL_WRITE_MAC; |
| 1594 | USETW(req.wValue, val); |
| 1595 | USETW(req.wIndex, reg); |
| 1596 | USETW(req.wLength, 0); |
| 1597 | |
| 1598 | error = usbd_do_request(sc->sc_udev, &req, NULL); |
| 1599 | if (error != 0) { |
| 1600 | printf("%s: could not write MAC register: %s\n" , |
| 1601 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 1602 | } |
| 1603 | } |
| 1604 | |
| 1605 | Static void |
| 1606 | ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len) |
| 1607 | { |
| 1608 | usb_device_request_t req; |
| 1609 | usbd_status error; |
| 1610 | |
| 1611 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
| 1612 | req.bRequest = RAL_WRITE_MULTI_MAC; |
| 1613 | USETW(req.wValue, 0); |
| 1614 | USETW(req.wIndex, reg); |
| 1615 | USETW(req.wLength, len); |
| 1616 | |
| 1617 | error = usbd_do_request(sc->sc_udev, &req, buf); |
| 1618 | if (error != 0) { |
| 1619 | printf("%s: could not write MAC register: %s\n" , |
| 1620 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 1621 | } |
| 1622 | } |
| 1623 | |
| 1624 | Static void |
| 1625 | ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val) |
| 1626 | { |
| 1627 | uint16_t tmp; |
| 1628 | int ntries; |
| 1629 | |
| 1630 | for (ntries = 0; ntries < 5; ntries++) { |
| 1631 | if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY)) |
| 1632 | break; |
| 1633 | } |
| 1634 | if (ntries == 5) { |
| 1635 | printf("%s: could not write to BBP\n" , device_xname(sc->sc_dev)); |
| 1636 | return; |
| 1637 | } |
| 1638 | |
| 1639 | tmp = reg << 8 | val; |
| 1640 | ural_write(sc, RAL_PHY_CSR7, tmp); |
| 1641 | } |
| 1642 | |
| 1643 | Static uint8_t |
| 1644 | ural_bbp_read(struct ural_softc *sc, uint8_t reg) |
| 1645 | { |
| 1646 | uint16_t val; |
| 1647 | int ntries; |
| 1648 | |
| 1649 | val = RAL_BBP_WRITE | reg << 8; |
| 1650 | ural_write(sc, RAL_PHY_CSR7, val); |
| 1651 | |
| 1652 | for (ntries = 0; ntries < 5; ntries++) { |
| 1653 | if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY)) |
| 1654 | break; |
| 1655 | } |
| 1656 | if (ntries == 5) { |
| 1657 | printf("%s: could not read BBP\n" , device_xname(sc->sc_dev)); |
| 1658 | return 0; |
| 1659 | } |
| 1660 | |
| 1661 | return ural_read(sc, RAL_PHY_CSR7) & 0xff; |
| 1662 | } |
| 1663 | |
| 1664 | Static void |
| 1665 | ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val) |
| 1666 | { |
| 1667 | uint32_t tmp; |
| 1668 | int ntries; |
| 1669 | |
| 1670 | for (ntries = 0; ntries < 5; ntries++) { |
| 1671 | if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY)) |
| 1672 | break; |
| 1673 | } |
| 1674 | if (ntries == 5) { |
| 1675 | printf("%s: could not write to RF\n" , device_xname(sc->sc_dev)); |
| 1676 | return; |
| 1677 | } |
| 1678 | |
| 1679 | tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3); |
| 1680 | ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff); |
| 1681 | ural_write(sc, RAL_PHY_CSR10, tmp >> 16); |
| 1682 | |
| 1683 | /* remember last written value in sc */ |
| 1684 | sc->rf_regs[reg] = val; |
| 1685 | |
| 1686 | DPRINTFN(15, ("RF R[%u] <- 0x%05x\n" , reg & 0x3, val & 0xfffff)); |
| 1687 | } |
| 1688 | |
| 1689 | Static void |
| 1690 | ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c) |
| 1691 | { |
| 1692 | struct ieee80211com *ic = &sc->sc_ic; |
| 1693 | uint8_t power, tmp; |
| 1694 | u_int i, chan; |
| 1695 | |
| 1696 | chan = ieee80211_chan2ieee(ic, c); |
| 1697 | if (chan == 0 || chan == IEEE80211_CHAN_ANY) |
| 1698 | return; |
| 1699 | |
| 1700 | if (IEEE80211_IS_CHAN_2GHZ(c)) |
| 1701 | power = min(sc->txpow[chan - 1], 31); |
| 1702 | else |
| 1703 | power = 31; |
| 1704 | |
| 1705 | /* adjust txpower using ifconfig settings */ |
| 1706 | power -= (100 - ic->ic_txpowlimit) / 8; |
| 1707 | |
| 1708 | DPRINTFN(2, ("setting channel to %u, txpower to %u\n" , chan, power)); |
| 1709 | |
| 1710 | switch (sc->rf_rev) { |
| 1711 | case RAL_RF_2522: |
| 1712 | ural_rf_write(sc, RAL_RF1, 0x00814); |
| 1713 | ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]); |
| 1714 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040); |
| 1715 | break; |
| 1716 | |
| 1717 | case RAL_RF_2523: |
| 1718 | ural_rf_write(sc, RAL_RF1, 0x08804); |
| 1719 | ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]); |
| 1720 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044); |
| 1721 | ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); |
| 1722 | break; |
| 1723 | |
| 1724 | case RAL_RF_2524: |
| 1725 | ural_rf_write(sc, RAL_RF1, 0x0c808); |
| 1726 | ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]); |
| 1727 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040); |
| 1728 | ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); |
| 1729 | break; |
| 1730 | |
| 1731 | case RAL_RF_2525: |
| 1732 | ural_rf_write(sc, RAL_RF1, 0x08808); |
| 1733 | ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]); |
| 1734 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); |
| 1735 | ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); |
| 1736 | |
| 1737 | ural_rf_write(sc, RAL_RF1, 0x08808); |
| 1738 | ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]); |
| 1739 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); |
| 1740 | ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); |
| 1741 | break; |
| 1742 | |
| 1743 | case RAL_RF_2525E: |
| 1744 | ural_rf_write(sc, RAL_RF1, 0x08808); |
| 1745 | ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]); |
| 1746 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); |
| 1747 | ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282); |
| 1748 | break; |
| 1749 | |
| 1750 | case RAL_RF_2526: |
| 1751 | ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]); |
| 1752 | ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381); |
| 1753 | ural_rf_write(sc, RAL_RF1, 0x08804); |
| 1754 | |
| 1755 | ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]); |
| 1756 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); |
| 1757 | ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381); |
| 1758 | break; |
| 1759 | |
| 1760 | /* dual-band RF */ |
| 1761 | case RAL_RF_5222: |
| 1762 | for (i = 0; ural_rf5222[i].chan != chan; i++); |
| 1763 | |
| 1764 | ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1); |
| 1765 | ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2); |
| 1766 | ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040); |
| 1767 | ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4); |
| 1768 | break; |
| 1769 | } |
| 1770 | |
| 1771 | if (ic->ic_opmode != IEEE80211_M_MONITOR && |
| 1772 | ic->ic_state != IEEE80211_S_SCAN) { |
| 1773 | /* set Japan filter bit for channel 14 */ |
| 1774 | tmp = ural_bbp_read(sc, 70); |
| 1775 | |
| 1776 | tmp &= ~RAL_JAPAN_FILTER; |
| 1777 | if (chan == 14) |
| 1778 | tmp |= RAL_JAPAN_FILTER; |
| 1779 | |
| 1780 | ural_bbp_write(sc, 70, tmp); |
| 1781 | |
| 1782 | /* clear CRC errors */ |
| 1783 | ural_read(sc, RAL_STA_CSR0); |
| 1784 | |
| 1785 | DELAY(10000); |
| 1786 | ural_disable_rf_tune(sc); |
| 1787 | } |
| 1788 | } |
| 1789 | |
| 1790 | /* |
| 1791 | * Disable RF auto-tuning. |
| 1792 | */ |
| 1793 | Static void |
| 1794 | ural_disable_rf_tune(struct ural_softc *sc) |
| 1795 | { |
| 1796 | uint32_t tmp; |
| 1797 | |
| 1798 | if (sc->rf_rev != RAL_RF_2523) { |
| 1799 | tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE; |
| 1800 | ural_rf_write(sc, RAL_RF1, tmp); |
| 1801 | } |
| 1802 | |
| 1803 | tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE; |
| 1804 | ural_rf_write(sc, RAL_RF3, tmp); |
| 1805 | |
| 1806 | DPRINTFN(2, ("disabling RF autotune\n" )); |
| 1807 | } |
| 1808 | |
| 1809 | /* |
| 1810 | * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF |
| 1811 | * synchronization. |
| 1812 | */ |
| 1813 | Static void |
| 1814 | ural_enable_tsf_sync(struct ural_softc *sc) |
| 1815 | { |
| 1816 | struct ieee80211com *ic = &sc->sc_ic; |
| 1817 | uint16_t logcwmin, preload, tmp; |
| 1818 | |
| 1819 | /* first, disable TSF synchronization */ |
| 1820 | ural_write(sc, RAL_TXRX_CSR19, 0); |
| 1821 | |
| 1822 | tmp = (16 * ic->ic_bss->ni_intval) << 4; |
| 1823 | ural_write(sc, RAL_TXRX_CSR18, tmp); |
| 1824 | |
| 1825 | logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0; |
| 1826 | preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6; |
| 1827 | tmp = logcwmin << 12 | preload; |
| 1828 | ural_write(sc, RAL_TXRX_CSR20, tmp); |
| 1829 | |
| 1830 | /* finally, enable TSF synchronization */ |
| 1831 | tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN; |
| 1832 | if (ic->ic_opmode == IEEE80211_M_STA) |
| 1833 | tmp |= RAL_ENABLE_TSF_SYNC(1); |
| 1834 | else |
| 1835 | tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR; |
| 1836 | ural_write(sc, RAL_TXRX_CSR19, tmp); |
| 1837 | |
| 1838 | DPRINTF(("enabling TSF synchronization\n" )); |
| 1839 | } |
| 1840 | |
| 1841 | Static void |
| 1842 | ural_update_slot(struct ifnet *ifp) |
| 1843 | { |
| 1844 | struct ural_softc *sc = ifp->if_softc; |
| 1845 | struct ieee80211com *ic = &sc->sc_ic; |
| 1846 | uint16_t slottime, sifs, eifs; |
| 1847 | |
| 1848 | slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; |
| 1849 | |
| 1850 | /* |
| 1851 | * These settings may sound a bit inconsistent but this is what the |
| 1852 | * reference driver does. |
| 1853 | */ |
| 1854 | if (ic->ic_curmode == IEEE80211_MODE_11B) { |
| 1855 | sifs = 16 - RAL_RXTX_TURNAROUND; |
| 1856 | eifs = 364; |
| 1857 | } else { |
| 1858 | sifs = 10 - RAL_RXTX_TURNAROUND; |
| 1859 | eifs = 64; |
| 1860 | } |
| 1861 | |
| 1862 | ural_write(sc, RAL_MAC_CSR10, slottime); |
| 1863 | ural_write(sc, RAL_MAC_CSR11, sifs); |
| 1864 | ural_write(sc, RAL_MAC_CSR12, eifs); |
| 1865 | } |
| 1866 | |
| 1867 | Static void |
| 1868 | ural_set_txpreamble(struct ural_softc *sc) |
| 1869 | { |
| 1870 | uint16_t tmp; |
| 1871 | |
| 1872 | tmp = ural_read(sc, RAL_TXRX_CSR10); |
| 1873 | |
| 1874 | tmp &= ~RAL_SHORT_PREAMBLE; |
| 1875 | if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE) |
| 1876 | tmp |= RAL_SHORT_PREAMBLE; |
| 1877 | |
| 1878 | ural_write(sc, RAL_TXRX_CSR10, tmp); |
| 1879 | } |
| 1880 | |
| 1881 | Static void |
| 1882 | ural_set_basicrates(struct ural_softc *sc) |
| 1883 | { |
| 1884 | struct ieee80211com *ic = &sc->sc_ic; |
| 1885 | |
| 1886 | /* update basic rate set */ |
| 1887 | if (ic->ic_curmode == IEEE80211_MODE_11B) { |
| 1888 | /* 11b basic rates: 1, 2Mbps */ |
| 1889 | ural_write(sc, RAL_TXRX_CSR11, 0x3); |
| 1890 | } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) { |
| 1891 | /* 11a basic rates: 6, 12, 24Mbps */ |
| 1892 | ural_write(sc, RAL_TXRX_CSR11, 0x150); |
| 1893 | } else { |
| 1894 | /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */ |
| 1895 | ural_write(sc, RAL_TXRX_CSR11, 0x15f); |
| 1896 | } |
| 1897 | } |
| 1898 | |
| 1899 | Static void |
| 1900 | ural_set_bssid(struct ural_softc *sc, uint8_t *bssid) |
| 1901 | { |
| 1902 | uint16_t tmp; |
| 1903 | |
| 1904 | tmp = bssid[0] | bssid[1] << 8; |
| 1905 | ural_write(sc, RAL_MAC_CSR5, tmp); |
| 1906 | |
| 1907 | tmp = bssid[2] | bssid[3] << 8; |
| 1908 | ural_write(sc, RAL_MAC_CSR6, tmp); |
| 1909 | |
| 1910 | tmp = bssid[4] | bssid[5] << 8; |
| 1911 | ural_write(sc, RAL_MAC_CSR7, tmp); |
| 1912 | |
| 1913 | DPRINTF(("setting BSSID to %s\n" , ether_sprintf(bssid))); |
| 1914 | } |
| 1915 | |
| 1916 | Static void |
| 1917 | ural_set_macaddr(struct ural_softc *sc, uint8_t *addr) |
| 1918 | { |
| 1919 | uint16_t tmp; |
| 1920 | |
| 1921 | tmp = addr[0] | addr[1] << 8; |
| 1922 | ural_write(sc, RAL_MAC_CSR2, tmp); |
| 1923 | |
| 1924 | tmp = addr[2] | addr[3] << 8; |
| 1925 | ural_write(sc, RAL_MAC_CSR3, tmp); |
| 1926 | |
| 1927 | tmp = addr[4] | addr[5] << 8; |
| 1928 | ural_write(sc, RAL_MAC_CSR4, tmp); |
| 1929 | |
| 1930 | DPRINTF(("setting MAC address to %s\n" , ether_sprintf(addr))); |
| 1931 | } |
| 1932 | |
| 1933 | Static void |
| 1934 | ural_update_promisc(struct ural_softc *sc) |
| 1935 | { |
| 1936 | struct ifnet *ifp = sc->sc_ic.ic_ifp; |
| 1937 | uint32_t tmp; |
| 1938 | |
| 1939 | tmp = ural_read(sc, RAL_TXRX_CSR2); |
| 1940 | |
| 1941 | tmp &= ~RAL_DROP_NOT_TO_ME; |
| 1942 | if (!(ifp->if_flags & IFF_PROMISC)) |
| 1943 | tmp |= RAL_DROP_NOT_TO_ME; |
| 1944 | |
| 1945 | ural_write(sc, RAL_TXRX_CSR2, tmp); |
| 1946 | |
| 1947 | DPRINTF(("%s promiscuous mode\n" , (ifp->if_flags & IFF_PROMISC) ? |
| 1948 | "entering" : "leaving" )); |
| 1949 | } |
| 1950 | |
| 1951 | Static const char * |
| 1952 | ural_get_rf(int rev) |
| 1953 | { |
| 1954 | switch (rev) { |
| 1955 | case RAL_RF_2522: return "RT2522" ; |
| 1956 | case RAL_RF_2523: return "RT2523" ; |
| 1957 | case RAL_RF_2524: return "RT2524" ; |
| 1958 | case RAL_RF_2525: return "RT2525" ; |
| 1959 | case RAL_RF_2525E: return "RT2525e" ; |
| 1960 | case RAL_RF_2526: return "RT2526" ; |
| 1961 | case RAL_RF_5222: return "RT5222" ; |
| 1962 | default: return "unknown" ; |
| 1963 | } |
| 1964 | } |
| 1965 | |
| 1966 | Static void |
| 1967 | ural_read_eeprom(struct ural_softc *sc) |
| 1968 | { |
| 1969 | struct ieee80211com *ic = &sc->sc_ic; |
| 1970 | uint16_t val; |
| 1971 | |
| 1972 | ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2); |
| 1973 | val = le16toh(val); |
| 1974 | sc->rf_rev = (val >> 11) & 0x7; |
| 1975 | sc->hw_radio = (val >> 10) & 0x1; |
| 1976 | sc->led_mode = (val >> 6) & 0x7; |
| 1977 | sc->rx_ant = (val >> 4) & 0x3; |
| 1978 | sc->tx_ant = (val >> 2) & 0x3; |
| 1979 | sc->nb_ant = val & 0x3; |
| 1980 | |
| 1981 | /* read MAC address */ |
| 1982 | ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, ic->ic_myaddr, 6); |
| 1983 | |
| 1984 | /* read default values for BBP registers */ |
| 1985 | ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); |
| 1986 | |
| 1987 | /* read Tx power for all b/g channels */ |
| 1988 | ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14); |
| 1989 | } |
| 1990 | |
| 1991 | Static int |
| 1992 | ural_bbp_init(struct ural_softc *sc) |
| 1993 | { |
| 1994 | int i, ntries; |
| 1995 | |
| 1996 | /* wait for BBP to be ready */ |
| 1997 | for (ntries = 0; ntries < 100; ntries++) { |
| 1998 | if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0) |
| 1999 | break; |
| 2000 | DELAY(1000); |
| 2001 | } |
| 2002 | if (ntries == 100) { |
| 2003 | printf("%s: timeout waiting for BBP\n" , device_xname(sc->sc_dev)); |
| 2004 | return EIO; |
| 2005 | } |
| 2006 | |
| 2007 | /* initialize BBP registers to default values */ |
| 2008 | for (i = 0; i < __arraycount(ural_def_bbp); i++) |
| 2009 | ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val); |
| 2010 | |
| 2011 | #if 0 |
| 2012 | /* initialize BBP registers to values stored in EEPROM */ |
| 2013 | for (i = 0; i < 16; i++) { |
| 2014 | if (sc->bbp_prom[i].reg == 0xff) |
| 2015 | continue; |
| 2016 | ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); |
| 2017 | } |
| 2018 | #endif |
| 2019 | |
| 2020 | return 0; |
| 2021 | } |
| 2022 | |
| 2023 | Static void |
| 2024 | ural_set_txantenna(struct ural_softc *sc, int antenna) |
| 2025 | { |
| 2026 | uint16_t tmp; |
| 2027 | uint8_t tx; |
| 2028 | |
| 2029 | tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK; |
| 2030 | if (antenna == 1) |
| 2031 | tx |= RAL_BBP_ANTA; |
| 2032 | else if (antenna == 2) |
| 2033 | tx |= RAL_BBP_ANTB; |
| 2034 | else |
| 2035 | tx |= RAL_BBP_DIVERSITY; |
| 2036 | |
| 2037 | /* need to force I/Q flip for RF 2525e, 2526 and 5222 */ |
| 2038 | if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 || |
| 2039 | sc->rf_rev == RAL_RF_5222) |
| 2040 | tx |= RAL_BBP_FLIPIQ; |
| 2041 | |
| 2042 | ural_bbp_write(sc, RAL_BBP_TX, tx); |
| 2043 | |
| 2044 | /* update values in PHY_CSR5 and PHY_CSR6 */ |
| 2045 | tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7; |
| 2046 | ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7)); |
| 2047 | |
| 2048 | tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7; |
| 2049 | ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7)); |
| 2050 | } |
| 2051 | |
| 2052 | Static void |
| 2053 | ural_set_rxantenna(struct ural_softc *sc, int antenna) |
| 2054 | { |
| 2055 | uint8_t rx; |
| 2056 | |
| 2057 | rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK; |
| 2058 | if (antenna == 1) |
| 2059 | rx |= RAL_BBP_ANTA; |
| 2060 | else if (antenna == 2) |
| 2061 | rx |= RAL_BBP_ANTB; |
| 2062 | else |
| 2063 | rx |= RAL_BBP_DIVERSITY; |
| 2064 | |
| 2065 | /* need to force no I/Q flip for RF 2525e and 2526 */ |
| 2066 | if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526) |
| 2067 | rx &= ~RAL_BBP_FLIPIQ; |
| 2068 | |
| 2069 | ural_bbp_write(sc, RAL_BBP_RX, rx); |
| 2070 | } |
| 2071 | |
| 2072 | Static int |
| 2073 | ural_init(struct ifnet *ifp) |
| 2074 | { |
| 2075 | struct ural_softc *sc = ifp->if_softc; |
| 2076 | struct ieee80211com *ic = &sc->sc_ic; |
| 2077 | struct ieee80211_key *wk; |
| 2078 | uint16_t tmp; |
| 2079 | usbd_status error; |
| 2080 | int i, ntries; |
| 2081 | |
| 2082 | ural_set_testmode(sc); |
| 2083 | ural_write(sc, 0x308, 0x00f0); /* XXX magic */ |
| 2084 | |
| 2085 | ural_stop(ifp, 0); |
| 2086 | |
| 2087 | /* initialize MAC registers to default values */ |
| 2088 | for (i = 0; i < __arraycount(ural_def_mac); i++) |
| 2089 | ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val); |
| 2090 | |
| 2091 | /* wait for BBP and RF to wake up (this can take a long time!) */ |
| 2092 | for (ntries = 0; ntries < 100; ntries++) { |
| 2093 | tmp = ural_read(sc, RAL_MAC_CSR17); |
| 2094 | if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) == |
| 2095 | (RAL_BBP_AWAKE | RAL_RF_AWAKE)) |
| 2096 | break; |
| 2097 | DELAY(1000); |
| 2098 | } |
| 2099 | if (ntries == 100) { |
| 2100 | printf("%s: timeout waiting for BBP/RF to wakeup\n" , |
| 2101 | device_xname(sc->sc_dev)); |
| 2102 | error = EIO; |
| 2103 | goto fail; |
| 2104 | } |
| 2105 | |
| 2106 | /* we're ready! */ |
| 2107 | ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY); |
| 2108 | |
| 2109 | /* set basic rate set (will be updated later) */ |
| 2110 | ural_write(sc, RAL_TXRX_CSR11, 0x15f); |
| 2111 | |
| 2112 | error = ural_bbp_init(sc); |
| 2113 | if (error != 0) |
| 2114 | goto fail; |
| 2115 | |
| 2116 | /* set default BSS channel */ |
| 2117 | ural_set_chan(sc, ic->ic_curchan); |
| 2118 | |
| 2119 | /* clear statistic registers (STA_CSR0 to STA_CSR10) */ |
| 2120 | ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof(sc->sta)); |
| 2121 | |
| 2122 | ural_set_txantenna(sc, sc->tx_ant); |
| 2123 | ural_set_rxantenna(sc, sc->rx_ant); |
| 2124 | |
| 2125 | IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); |
| 2126 | ural_set_macaddr(sc, ic->ic_myaddr); |
| 2127 | |
| 2128 | /* |
| 2129 | * Copy WEP keys into adapter's memory (SEC_CSR0 to SEC_CSR31). |
| 2130 | */ |
| 2131 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 2132 | wk = &ic->ic_crypto.cs_nw_keys[i]; |
| 2133 | ural_write_multi(sc, wk->wk_keyix * IEEE80211_KEYBUF_SIZE + |
| 2134 | RAL_SEC_CSR0, wk->wk_key, IEEE80211_KEYBUF_SIZE); |
| 2135 | } |
| 2136 | |
| 2137 | /* |
| 2138 | * Allocate xfer for AMRR statistics requests. |
| 2139 | */ |
| 2140 | struct usbd_pipe *pipe0 = usbd_get_pipe0(sc->sc_udev); |
| 2141 | error = usbd_create_xfer(pipe0, sizeof(sc->sta), 0, 0, &sc->amrr_xfer); |
| 2142 | if (error) { |
| 2143 | printf("%s: could not allocate AMRR xfer\n" , |
| 2144 | device_xname(sc->sc_dev)); |
| 2145 | goto fail; |
| 2146 | } |
| 2147 | |
| 2148 | /* |
| 2149 | * Open Tx and Rx USB bulk pipes. |
| 2150 | */ |
| 2151 | error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE, |
| 2152 | &sc->sc_tx_pipeh); |
| 2153 | if (error != 0) { |
| 2154 | printf("%s: could not open Tx pipe: %s\n" , |
| 2155 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 2156 | goto fail; |
| 2157 | } |
| 2158 | |
| 2159 | error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE, |
| 2160 | &sc->sc_rx_pipeh); |
| 2161 | if (error != 0) { |
| 2162 | printf("%s: could not open Rx pipe: %s\n" , |
| 2163 | device_xname(sc->sc_dev), usbd_errstr(error)); |
| 2164 | goto fail; |
| 2165 | } |
| 2166 | |
| 2167 | /* |
| 2168 | * Allocate Tx and Rx xfer queues. |
| 2169 | */ |
| 2170 | error = ural_alloc_tx_list(sc); |
| 2171 | if (error != 0) { |
| 2172 | printf("%s: could not allocate Tx list\n" , |
| 2173 | device_xname(sc->sc_dev)); |
| 2174 | goto fail; |
| 2175 | } |
| 2176 | |
| 2177 | error = ural_alloc_rx_list(sc); |
| 2178 | if (error != 0) { |
| 2179 | printf("%s: could not allocate Rx list\n" , |
| 2180 | device_xname(sc->sc_dev)); |
| 2181 | goto fail; |
| 2182 | } |
| 2183 | |
| 2184 | /* |
| 2185 | * Start up the receive pipe. |
| 2186 | */ |
| 2187 | for (i = 0; i < RAL_RX_LIST_COUNT; i++) { |
| 2188 | struct ural_rx_data *data = &sc->rx_data[i]; |
| 2189 | |
| 2190 | usbd_setup_xfer(data->xfer, data, data->buf, MCLBYTES, |
| 2191 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof); |
| 2192 | usbd_transfer(data->xfer); |
| 2193 | } |
| 2194 | |
| 2195 | /* kick Rx */ |
| 2196 | tmp = RAL_DROP_PHY_ERROR | RAL_DROP_CRC_ERROR; |
| 2197 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 2198 | tmp |= RAL_DROP_CTL | RAL_DROP_VERSION_ERROR; |
| 2199 | if (ic->ic_opmode != IEEE80211_M_HOSTAP) |
| 2200 | tmp |= RAL_DROP_TODS; |
| 2201 | if (!(ifp->if_flags & IFF_PROMISC)) |
| 2202 | tmp |= RAL_DROP_NOT_TO_ME; |
| 2203 | } |
| 2204 | ural_write(sc, RAL_TXRX_CSR2, tmp); |
| 2205 | |
| 2206 | ifp->if_flags &= ~IFF_OACTIVE; |
| 2207 | ifp->if_flags |= IFF_RUNNING; |
| 2208 | |
| 2209 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 2210 | if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) |
| 2211 | ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); |
| 2212 | } else |
| 2213 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 2214 | |
| 2215 | return 0; |
| 2216 | |
| 2217 | fail: ural_stop(ifp, 1); |
| 2218 | return error; |
| 2219 | } |
| 2220 | |
| 2221 | Static void |
| 2222 | ural_stop(struct ifnet *ifp, int disable) |
| 2223 | { |
| 2224 | struct ural_softc *sc = ifp->if_softc; |
| 2225 | struct ieee80211com *ic = &sc->sc_ic; |
| 2226 | |
| 2227 | ieee80211_new_state(ic, IEEE80211_S_INIT, -1); |
| 2228 | |
| 2229 | sc->sc_tx_timer = 0; |
| 2230 | ifp->if_timer = 0; |
| 2231 | ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); |
| 2232 | |
| 2233 | /* disable Rx */ |
| 2234 | ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX); |
| 2235 | |
| 2236 | /* reset ASIC and BBP (but won't reset MAC registers!) */ |
| 2237 | ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP); |
| 2238 | ural_write(sc, RAL_MAC_CSR1, 0); |
| 2239 | |
| 2240 | if (sc->amrr_xfer != NULL) { |
| 2241 | usbd_destroy_xfer(sc->amrr_xfer); |
| 2242 | sc->amrr_xfer = NULL; |
| 2243 | } |
| 2244 | |
| 2245 | if (sc->sc_rx_pipeh != NULL) { |
| 2246 | usbd_abort_pipe(sc->sc_rx_pipeh); |
| 2247 | } |
| 2248 | |
| 2249 | if (sc->sc_tx_pipeh != NULL) { |
| 2250 | usbd_abort_pipe(sc->sc_tx_pipeh); |
| 2251 | } |
| 2252 | |
| 2253 | ural_free_rx_list(sc); |
| 2254 | ural_free_tx_list(sc); |
| 2255 | |
| 2256 | if (sc->sc_rx_pipeh != NULL) { |
| 2257 | usbd_close_pipe(sc->sc_rx_pipeh); |
| 2258 | sc->sc_rx_pipeh = NULL; |
| 2259 | } |
| 2260 | |
| 2261 | if (sc->sc_tx_pipeh != NULL) { |
| 2262 | usbd_close_pipe(sc->sc_tx_pipeh); |
| 2263 | sc->sc_tx_pipeh = NULL; |
| 2264 | } |
| 2265 | } |
| 2266 | |
| 2267 | int |
| 2268 | ural_activate(device_t self, enum devact act) |
| 2269 | { |
| 2270 | struct ural_softc *sc = device_private(self); |
| 2271 | |
| 2272 | switch (act) { |
| 2273 | case DVACT_DEACTIVATE: |
| 2274 | if_deactivate(&sc->sc_if); |
| 2275 | return 0; |
| 2276 | default: |
| 2277 | return EOPNOTSUPP; |
| 2278 | } |
| 2279 | } |
| 2280 | |
| 2281 | Static void |
| 2282 | ural_amrr_start(struct ural_softc *sc, struct ieee80211_node *ni) |
| 2283 | { |
| 2284 | int i; |
| 2285 | |
| 2286 | /* clear statistic registers (STA_CSR0 to STA_CSR10) */ |
| 2287 | ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof(sc->sta)); |
| 2288 | |
| 2289 | ieee80211_amrr_node_init(&sc->amrr, &sc->amn); |
| 2290 | |
| 2291 | /* set rate to some reasonable initial value */ |
| 2292 | for (i = ni->ni_rates.rs_nrates - 1; |
| 2293 | i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; |
| 2294 | i--); |
| 2295 | ni->ni_txrate = i; |
| 2296 | |
| 2297 | callout_reset(&sc->sc_amrr_ch, hz, ural_amrr_timeout, sc); |
| 2298 | } |
| 2299 | |
| 2300 | Static void |
| 2301 | ural_amrr_timeout(void *arg) |
| 2302 | { |
| 2303 | struct ural_softc *sc = (struct ural_softc *)arg; |
| 2304 | usb_device_request_t req; |
| 2305 | int s; |
| 2306 | |
| 2307 | s = splusb(); |
| 2308 | |
| 2309 | /* |
| 2310 | * Asynchronously read statistic registers (cleared by read). |
| 2311 | */ |
| 2312 | req.bmRequestType = UT_READ_VENDOR_DEVICE; |
| 2313 | req.bRequest = RAL_READ_MULTI_MAC; |
| 2314 | USETW(req.wValue, 0); |
| 2315 | USETW(req.wIndex, RAL_STA_CSR0); |
| 2316 | USETW(req.wLength, sizeof(sc->sta)); |
| 2317 | |
| 2318 | usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc, |
| 2319 | USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof(sc->sta), 0, |
| 2320 | ural_amrr_update); |
| 2321 | (void)usbd_transfer(sc->amrr_xfer); |
| 2322 | |
| 2323 | splx(s); |
| 2324 | } |
| 2325 | |
| 2326 | Static void |
| 2327 | ural_amrr_update(struct usbd_xfer *xfer, void * priv, |
| 2328 | usbd_status status) |
| 2329 | { |
| 2330 | struct ural_softc *sc = (struct ural_softc *)priv; |
| 2331 | struct ifnet *ifp = sc->sc_ic.ic_ifp; |
| 2332 | |
| 2333 | if (status != USBD_NORMAL_COMPLETION) { |
| 2334 | printf("%s: could not retrieve Tx statistics - " |
| 2335 | "cancelling automatic rate control\n" , |
| 2336 | device_xname(sc->sc_dev)); |
| 2337 | return; |
| 2338 | } |
| 2339 | |
| 2340 | /* count TX retry-fail as Tx errors */ |
| 2341 | ifp->if_oerrors += sc->sta[9]; |
| 2342 | |
| 2343 | sc->amn.amn_retrycnt = |
| 2344 | sc->sta[7] + /* TX one-retry ok count */ |
| 2345 | sc->sta[8] + /* TX more-retry ok count */ |
| 2346 | sc->sta[9]; /* TX retry-fail count */ |
| 2347 | |
| 2348 | sc->amn.amn_txcnt = |
| 2349 | sc->amn.amn_retrycnt + |
| 2350 | sc->sta[6]; /* TX no-retry ok count */ |
| 2351 | |
| 2352 | ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn); |
| 2353 | |
| 2354 | callout_reset(&sc->sc_amrr_ch, hz, ural_amrr_timeout, sc); |
| 2355 | } |
| 2356 | |