rt2560.c revision 298818
154359Sroberto/* $FreeBSD: head/sys/dev/ral/rt2560.c 298818 2016-04-29 22:14:11Z avos $ */ 254359Sroberto 354359Sroberto/*- 454359Sroberto * Copyright (c) 2005, 2006 554359Sroberto * Damien Bergamini <damien.bergamini@free.fr> 654359Sroberto * 754359Sroberto * Permission to use, copy, modify, and distribute this software for any 854359Sroberto * purpose with or without fee is hereby granted, provided that the above 954359Sroberto * copyright notice and this permission notice appear in all copies. 1054359Sroberto * 1154359Sroberto * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1254359Sroberto * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1354359Sroberto * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1454359Sroberto * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1554359Sroberto * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1654359Sroberto * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1754359Sroberto * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1854359Sroberto */ 1954359Sroberto 2054359Sroberto#include <sys/cdefs.h> 2154359Sroberto__FBSDID("$FreeBSD: head/sys/dev/ral/rt2560.c 298818 2016-04-29 22:14:11Z avos $"); 2254359Sroberto 2354359Sroberto/*- 2454359Sroberto * Ralink Technology RT2560 chipset driver 2554359Sroberto * http://www.ralinktech.com/ 2654359Sroberto */ 2754359Sroberto 2854359Sroberto#include <sys/param.h> 2954359Sroberto#include <sys/sysctl.h> 3054359Sroberto#include <sys/sockio.h> 3154359Sroberto#include <sys/mbuf.h> 3254359Sroberto#include <sys/kernel.h> 3354359Sroberto#include <sys/socket.h> 3454359Sroberto#include <sys/systm.h> 3554359Sroberto#include <sys/malloc.h> 3654359Sroberto#include <sys/lock.h> 3754359Sroberto#include <sys/mutex.h> 3854359Sroberto#include <sys/module.h> 3954359Sroberto#include <sys/bus.h> 4054359Sroberto#include <sys/endian.h> 4154359Sroberto 4254359Sroberto#include <machine/bus.h> 4354359Sroberto#include <machine/resource.h> 4454359Sroberto#include <sys/rman.h> 4554359Sroberto 4654359Sroberto#include <net/bpf.h> 4754359Sroberto#include <net/if.h> 4854359Sroberto#include <net/if_var.h> 4954359Sroberto#include <net/if_arp.h> 5054359Sroberto#include <net/ethernet.h> 5154359Sroberto#include <net/if_dl.h> 5254359Sroberto#include <net/if_media.h> 5354359Sroberto#include <net/if_types.h> 5454359Sroberto 5554359Sroberto#include <net80211/ieee80211_var.h> 5654359Sroberto#include <net80211/ieee80211_radiotap.h> 5754359Sroberto#include <net80211/ieee80211_regdomain.h> 5854359Sroberto#include <net80211/ieee80211_ratectl.h> 5954359Sroberto 6054359Sroberto#include <netinet/in.h> 6154359Sroberto#include <netinet/in_systm.h> 6254359Sroberto#include <netinet/in_var.h> 6354359Sroberto#include <netinet/ip.h> 6454359Sroberto#include <netinet/if_ether.h> 6554359Sroberto 6654359Sroberto#include <dev/ral/rt2560reg.h> 6754359Sroberto#include <dev/ral/rt2560var.h> 6854359Sroberto 6954359Sroberto#define RT2560_RSSI(sc, rssi) \ 7054359Sroberto ((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \ 7154359Sroberto ((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0) 7254359Sroberto 7354359Sroberto#define RAL_DEBUG 7454359Sroberto#ifdef RAL_DEBUG 7554359Sroberto#define DPRINTF(sc, fmt, ...) do { \ 7654359Sroberto if (sc->sc_debug > 0) \ 7754359Sroberto printf(fmt, __VA_ARGS__); \ 7854359Sroberto} while (0) 7954359Sroberto#define DPRINTFN(sc, n, fmt, ...) do { \ 8054359Sroberto if (sc->sc_debug >= (n)) \ 8154359Sroberto printf(fmt, __VA_ARGS__); \ 8254359Sroberto} while (0) 8354359Sroberto#else 8454359Sroberto#define DPRINTF(sc, fmt, ...) 8554359Sroberto#define DPRINTFN(sc, n, fmt, ...) 8654359Sroberto#endif 8754359Sroberto 8854359Srobertostatic struct ieee80211vap *rt2560_vap_create(struct ieee80211com *, 8954359Sroberto const char [IFNAMSIZ], int, enum ieee80211_opmode, 9054359Sroberto int, const uint8_t [IEEE80211_ADDR_LEN], 9154359Sroberto const uint8_t [IEEE80211_ADDR_LEN]); 9254359Srobertostatic void rt2560_vap_delete(struct ieee80211vap *); 9354359Srobertostatic void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int, 9454359Sroberto int); 9554359Srobertostatic int rt2560_alloc_tx_ring(struct rt2560_softc *, 9654359Sroberto struct rt2560_tx_ring *, int); 9754359Srobertostatic void rt2560_reset_tx_ring(struct rt2560_softc *, 9854359Sroberto struct rt2560_tx_ring *); 9954359Srobertostatic void rt2560_free_tx_ring(struct rt2560_softc *, 10054359Sroberto struct rt2560_tx_ring *); 10154359Srobertostatic int rt2560_alloc_rx_ring(struct rt2560_softc *, 10254359Sroberto struct rt2560_rx_ring *, int); 10354359Srobertostatic void rt2560_reset_rx_ring(struct rt2560_softc *, 10454359Sroberto struct rt2560_rx_ring *); 10554359Srobertostatic void rt2560_free_rx_ring(struct rt2560_softc *, 10654359Sroberto struct rt2560_rx_ring *); 10754359Srobertostatic int rt2560_newstate(struct ieee80211vap *, 10854359Sroberto enum ieee80211_state, int); 10954359Srobertostatic uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t); 11054359Srobertostatic void rt2560_encryption_intr(struct rt2560_softc *); 11154359Srobertostatic void rt2560_tx_intr(struct rt2560_softc *); 11254359Srobertostatic void rt2560_prio_intr(struct rt2560_softc *); 11354359Srobertostatic void rt2560_decryption_intr(struct rt2560_softc *); 11454359Srobertostatic void rt2560_rx_intr(struct rt2560_softc *); 11554359Srobertostatic void rt2560_beacon_update(struct ieee80211vap *, int item); 11654359Srobertostatic void rt2560_beacon_expire(struct rt2560_softc *); 11754359Srobertostatic void rt2560_wakeup_expire(struct rt2560_softc *); 11854359Srobertostatic void rt2560_scan_start(struct ieee80211com *); 11954359Srobertostatic void rt2560_scan_end(struct ieee80211com *); 12054359Srobertostatic void rt2560_set_channel(struct ieee80211com *); 12154359Srobertostatic void rt2560_setup_tx_desc(struct rt2560_softc *, 12254359Sroberto struct rt2560_tx_desc *, uint32_t, int, int, int, 12354359Sroberto bus_addr_t); 12454359Srobertostatic int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *, 12554359Sroberto struct ieee80211_node *); 12654359Srobertostatic int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *, 12754359Sroberto struct ieee80211_node *); 12854359Srobertostatic int rt2560_tx_data(struct rt2560_softc *, struct mbuf *, 12954359Sroberto struct ieee80211_node *); 13054359Srobertostatic int rt2560_transmit(struct ieee80211com *, struct mbuf *); 13154359Srobertostatic void rt2560_start(struct rt2560_softc *); 13254359Srobertostatic void rt2560_watchdog(void *); 13354359Srobertostatic void rt2560_parent(struct ieee80211com *); 13454359Srobertostatic void rt2560_bbp_write(struct rt2560_softc *, uint8_t, 13554359Sroberto uint8_t); 13654359Srobertostatic uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t); 13754359Srobertostatic void rt2560_rf_write(struct rt2560_softc *, uint8_t, 13854359Sroberto uint32_t); 13954359Srobertostatic void rt2560_set_chan(struct rt2560_softc *, 14054359Sroberto struct ieee80211_channel *); 14154359Sroberto#if 0 14254359Srobertostatic void rt2560_disable_rf_tune(struct rt2560_softc *); 14354359Sroberto#endif 14454359Srobertostatic void rt2560_enable_tsf_sync(struct rt2560_softc *); 14554359Srobertostatic void rt2560_enable_tsf(struct rt2560_softc *); 14654359Srobertostatic void rt2560_update_plcp(struct rt2560_softc *); 14754359Srobertostatic void rt2560_update_slot(struct ieee80211com *); 14854359Srobertostatic void rt2560_set_basicrates(struct rt2560_softc *, 14954359Sroberto const struct ieee80211_rateset *); 15054359Srobertostatic void rt2560_update_led(struct rt2560_softc *, int, int); 15154359Srobertostatic void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *); 15254359Srobertostatic void rt2560_set_macaddr(struct rt2560_softc *, 15354359Sroberto const uint8_t *); 15454359Srobertostatic void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *); 15554359Srobertostatic void rt2560_update_promisc(struct ieee80211com *); 15654359Srobertostatic const char *rt2560_get_rf(int); 15754359Srobertostatic void rt2560_read_config(struct rt2560_softc *); 15854359Srobertostatic int rt2560_bbp_init(struct rt2560_softc *); 15954359Srobertostatic void rt2560_set_txantenna(struct rt2560_softc *, int); 16054359Srobertostatic void rt2560_set_rxantenna(struct rt2560_softc *, int); 16154359Srobertostatic void rt2560_init_locked(struct rt2560_softc *); 16254359Srobertostatic void rt2560_init(void *); 16354359Srobertostatic void rt2560_stop_locked(struct rt2560_softc *); 16454359Srobertostatic int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *, 16554359Sroberto const struct ieee80211_bpf_params *); 16654359Sroberto 16754359Srobertostatic const struct { 16854359Sroberto uint32_t reg; 16954359Sroberto uint32_t val; 17054359Sroberto} rt2560_def_mac[] = { 17154359Sroberto RT2560_DEF_MAC 17254359Sroberto}; 17354359Sroberto 17454359Srobertostatic const struct { 17554359Sroberto uint8_t reg; 17654359Sroberto uint8_t val; 17754359Sroberto} rt2560_def_bbp[] = { 17854359Sroberto RT2560_DEF_BBP 17954359Sroberto}; 18054359Sroberto 18154359Srobertostatic const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2; 18254359Srobertostatic const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2; 18354359Srobertostatic const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2; 18454359Srobertostatic const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2; 18554359Srobertostatic const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2; 18654359Srobertostatic const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2; 18754359Srobertostatic const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2; 18854359Srobertostatic const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2; 18954359Sroberto 19054359Srobertostatic const struct { 19154359Sroberto uint8_t chan; 19254359Sroberto uint32_t r1, r2, r4; 19354359Sroberto} rt2560_rf5222[] = { 19454359Sroberto RT2560_RF5222 19554359Sroberto}; 19654359Sroberto 19754359Srobertoint 19854359Srobertort2560_attach(device_t dev, int id) 19954359Sroberto{ 20054359Sroberto struct rt2560_softc *sc = device_get_softc(dev); 20154359Sroberto struct ieee80211com *ic = &sc->sc_ic; 20254359Sroberto uint8_t bands[IEEE80211_MODE_BYTES]; 20354359Sroberto int error; 20454359Sroberto 20554359Sroberto sc->sc_dev = dev; 20654359Sroberto 20754359Sroberto mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 20854359Sroberto MTX_DEF | MTX_RECURSE); 20954359Sroberto 21054359Sroberto callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0); 21154359Sroberto mbufq_init(&sc->sc_snd, ifqmaxlen); 21254359Sroberto 21354359Sroberto /* retrieve RT2560 rev. no */ 21454359Sroberto sc->asic_rev = RAL_READ(sc, RT2560_CSR0); 21554359Sroberto 21654359Sroberto /* retrieve RF rev. no and various other things from EEPROM */ 21754359Sroberto rt2560_read_config(sc); 21854359Sroberto 21954359Sroberto device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n", 22054359Sroberto sc->asic_rev, rt2560_get_rf(sc->rf_rev)); 22154359Sroberto 22254359Sroberto /* 22354359Sroberto * Allocate Tx and Rx rings. 22454359Sroberto */ 22554359Sroberto error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT); 22654359Sroberto if (error != 0) { 22754359Sroberto device_printf(sc->sc_dev, "could not allocate Tx ring\n"); 22854359Sroberto goto fail1; 22954359Sroberto } 23054359Sroberto 23154359Sroberto error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT); 23254359Sroberto if (error != 0) { 23354359Sroberto device_printf(sc->sc_dev, "could not allocate ATIM ring\n"); 23454359Sroberto goto fail2; 23554359Sroberto } 23654359Sroberto 23754359Sroberto error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT); 23854359Sroberto if (error != 0) { 23954359Sroberto device_printf(sc->sc_dev, "could not allocate Prio ring\n"); 24054359Sroberto goto fail3; 24154359Sroberto } 24254359Sroberto 24354359Sroberto error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT); 24454359Sroberto if (error != 0) { 24554359Sroberto device_printf(sc->sc_dev, "could not allocate Beacon ring\n"); 24654359Sroberto goto fail4; 24754359Sroberto } 24854359Sroberto 24954359Sroberto error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT); 25054359Sroberto if (error != 0) { 25154359Sroberto device_printf(sc->sc_dev, "could not allocate Rx ring\n"); 25254359Sroberto goto fail5; 25354359Sroberto } 25454359Sroberto 25554359Sroberto /* retrieve MAC address */ 25654359Sroberto rt2560_get_macaddr(sc, ic->ic_macaddr); 25754359Sroberto 25854359Sroberto ic->ic_softc = sc; 25954359Sroberto ic->ic_name = device_get_nameunit(dev); 26054359Sroberto ic->ic_opmode = IEEE80211_M_STA; 26154359Sroberto ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 26254359Sroberto 26354359Sroberto /* set device capabilities */ 26454359Sroberto ic->ic_caps = 26554359Sroberto IEEE80211_C_STA /* station mode */ 26654359Sroberto | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */ 26754359Sroberto | IEEE80211_C_HOSTAP /* hostap mode */ 26854359Sroberto | IEEE80211_C_MONITOR /* monitor mode */ 26954359Sroberto | IEEE80211_C_AHDEMO /* adhoc demo mode */ 27054359Sroberto | IEEE80211_C_WDS /* 4-address traffic works */ 27154359Sroberto | IEEE80211_C_MBSS /* mesh point link mode */ 27254359Sroberto | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 27354359Sroberto | IEEE80211_C_SHSLOT /* short slot time supported */ 27454359Sroberto | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 27554359Sroberto | IEEE80211_C_BGSCAN /* capable of bg scanning */ 27654359Sroberto#ifdef notyet 27754359Sroberto | IEEE80211_C_TXFRAG /* handle tx frags */ 27854359Sroberto#endif 27954359Sroberto ; 28054359Sroberto 28154359Sroberto memset(bands, 0, sizeof(bands)); 28254359Sroberto setbit(bands, IEEE80211_MODE_11B); 28354359Sroberto setbit(bands, IEEE80211_MODE_11G); 28454359Sroberto if (sc->rf_rev == RT2560_RF_5222) 28554359Sroberto setbit(bands, IEEE80211_MODE_11A); 28654359Sroberto ieee80211_init_channels(ic, NULL, bands); 28754359Sroberto 28854359Sroberto ieee80211_ifattach(ic); 28954359Sroberto ic->ic_raw_xmit = rt2560_raw_xmit; 29054359Sroberto ic->ic_updateslot = rt2560_update_slot; 29154359Sroberto ic->ic_update_promisc = rt2560_update_promisc; 29254359Sroberto ic->ic_scan_start = rt2560_scan_start; 29354359Sroberto ic->ic_scan_end = rt2560_scan_end; 29454359Sroberto ic->ic_set_channel = rt2560_set_channel; 29554359Sroberto 29654359Sroberto ic->ic_vap_create = rt2560_vap_create; 29754359Sroberto ic->ic_vap_delete = rt2560_vap_delete; 29854359Sroberto ic->ic_parent = rt2560_parent; 29954359Sroberto ic->ic_transmit = rt2560_transmit; 30054359Sroberto 30154359Sroberto ieee80211_radiotap_attach(ic, 30254359Sroberto &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 30354359Sroberto RT2560_TX_RADIOTAP_PRESENT, 30454359Sroberto &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 30554359Sroberto RT2560_RX_RADIOTAP_PRESENT); 30654359Sroberto 30754359Sroberto /* 30854359Sroberto * Add a few sysctl knobs. 30954359Sroberto */ 31054359Sroberto#ifdef RAL_DEBUG 31154359Sroberto SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 31254359Sroberto SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 31354359Sroberto "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs"); 31454359Sroberto#endif 31554359Sroberto SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 31654359Sroberto SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 31754359Sroberto "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)"); 31854359Sroberto 31954359Sroberto SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 32054359Sroberto SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 32154359Sroberto "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)"); 32254359Sroberto 32354359Sroberto if (bootverbose) 32454359Sroberto ieee80211_announce(ic); 32554359Sroberto 32654359Sroberto return 0; 32754359Sroberto 32854359Srobertofail5: rt2560_free_tx_ring(sc, &sc->bcnq); 32954359Srobertofail4: rt2560_free_tx_ring(sc, &sc->prioq); 33054359Srobertofail3: rt2560_free_tx_ring(sc, &sc->atimq); 33154359Srobertofail2: rt2560_free_tx_ring(sc, &sc->txq); 33254359Srobertofail1: mtx_destroy(&sc->sc_mtx); 33354359Sroberto 33454359Sroberto return ENXIO; 33554359Sroberto} 33654359Sroberto 33754359Srobertoint 33854359Srobertort2560_detach(void *xsc) 33954359Sroberto{ 34054359Sroberto struct rt2560_softc *sc = xsc; 34154359Sroberto struct ieee80211com *ic = &sc->sc_ic; 34254359Sroberto 34354359Sroberto rt2560_stop(sc); 34454359Sroberto 34554359Sroberto ieee80211_ifdetach(ic); 34654359Sroberto mbufq_drain(&sc->sc_snd); 34754359Sroberto 34854359Sroberto rt2560_free_tx_ring(sc, &sc->txq); 34954359Sroberto rt2560_free_tx_ring(sc, &sc->atimq); 35054359Sroberto rt2560_free_tx_ring(sc, &sc->prioq); 35154359Sroberto rt2560_free_tx_ring(sc, &sc->bcnq); 35254359Sroberto rt2560_free_rx_ring(sc, &sc->rxq); 35354359Sroberto 35454359Sroberto mtx_destroy(&sc->sc_mtx); 35554359Sroberto 35654359Sroberto return 0; 35754359Sroberto} 35854359Sroberto 35954359Srobertostatic struct ieee80211vap * 36054359Srobertort2560_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 36154359Sroberto enum ieee80211_opmode opmode, int flags, 36254359Sroberto const uint8_t bssid[IEEE80211_ADDR_LEN], 36354359Sroberto const uint8_t mac[IEEE80211_ADDR_LEN]) 36454359Sroberto{ 36554359Sroberto struct rt2560_softc *sc = ic->ic_softc; 36654359Sroberto struct rt2560_vap *rvp; 36754359Sroberto struct ieee80211vap *vap; 36854359Sroberto 36954359Sroberto switch (opmode) { 37054359Sroberto case IEEE80211_M_STA: 37154359Sroberto case IEEE80211_M_IBSS: 37254359Sroberto case IEEE80211_M_AHDEMO: 37354359Sroberto case IEEE80211_M_MONITOR: 37454359Sroberto case IEEE80211_M_HOSTAP: 37554359Sroberto case IEEE80211_M_MBSS: 37654359Sroberto /* XXXRP: TBD */ 37754359Sroberto if (!TAILQ_EMPTY(&ic->ic_vaps)) { 37854359Sroberto device_printf(sc->sc_dev, "only 1 vap supported\n"); 37954359Sroberto return NULL; 38054359Sroberto } 38154359Sroberto if (opmode == IEEE80211_M_STA) 38254359Sroberto flags |= IEEE80211_CLONE_NOBEACONS; 38354359Sroberto break; 38454359Sroberto case IEEE80211_M_WDS: 38554359Sroberto if (TAILQ_EMPTY(&ic->ic_vaps) || 38654359Sroberto ic->ic_opmode != IEEE80211_M_HOSTAP) { 38754359Sroberto device_printf(sc->sc_dev, 38854359Sroberto "wds only supported in ap mode\n"); 38954359Sroberto return NULL; 39054359Sroberto } 39154359Sroberto /* 39254359Sroberto * Silently remove any request for a unique 39354359Sroberto * bssid; WDS vap's always share the local 39454359Sroberto * mac address. 39554359Sroberto */ 39654359Sroberto flags &= ~IEEE80211_CLONE_BSSID; 39754359Sroberto break; 39854359Sroberto default: 39954359Sroberto device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); 40054359Sroberto return NULL; 40154359Sroberto } 40254359Sroberto rvp = malloc(sizeof(struct rt2560_vap), M_80211_VAP, M_WAITOK | M_ZERO); 40354359Sroberto vap = &rvp->ral_vap; 40454359Sroberto ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 40554359Sroberto 40654359Sroberto /* override state transition machine */ 40754359Sroberto rvp->ral_newstate = vap->iv_newstate; 40854359Sroberto vap->iv_newstate = rt2560_newstate; 40954359Sroberto vap->iv_update_beacon = rt2560_beacon_update; 41054359Sroberto 41154359Sroberto ieee80211_ratectl_init(vap); 41254359Sroberto /* complete setup */ 41354359Sroberto ieee80211_vap_attach(vap, ieee80211_media_change, 41454359Sroberto ieee80211_media_status, mac); 41554359Sroberto if (TAILQ_FIRST(&ic->ic_vaps) == vap) 41654359Sroberto ic->ic_opmode = opmode; 41754359Sroberto return vap; 41854359Sroberto} 41954359Sroberto 42054359Srobertostatic void 42154359Srobertort2560_vap_delete(struct ieee80211vap *vap) 42254359Sroberto{ 42354359Sroberto struct rt2560_vap *rvp = RT2560_VAP(vap); 42454359Sroberto 42554359Sroberto ieee80211_ratectl_deinit(vap); 42654359Sroberto ieee80211_vap_detach(vap); 42754359Sroberto free(rvp, M_80211_VAP); 42854359Sroberto} 42954359Sroberto 43054359Srobertovoid 43154359Srobertort2560_resume(void *xsc) 43254359Sroberto{ 43354359Sroberto struct rt2560_softc *sc = xsc; 43454359Sroberto 43554359Sroberto if (sc->sc_ic.ic_nrunning > 0) 43654359Sroberto rt2560_init(sc); 43754359Sroberto} 43854359Sroberto 43954359Srobertostatic void 44054359Srobertort2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 44154359Sroberto{ 44254359Sroberto if (error != 0) 44354359Sroberto return; 44454359Sroberto 44554359Sroberto KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 44654359Sroberto 44754359Sroberto *(bus_addr_t *)arg = segs[0].ds_addr; 44854359Sroberto} 44954359Sroberto 45054359Srobertostatic int 45154359Srobertort2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring, 45254359Sroberto int count) 45354359Sroberto{ 45454359Sroberto int i, error; 45554359Sroberto 45654359Sroberto ring->count = count; 45754359Sroberto ring->queued = 0; 45854359Sroberto ring->cur = ring->next = 0; 45954359Sroberto ring->cur_encrypt = ring->next_encrypt = 0; 46054359Sroberto 46154359Sroberto error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 46254359Sroberto BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 46354359Sroberto count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE, 46454359Sroberto 0, NULL, NULL, &ring->desc_dmat); 46554359Sroberto if (error != 0) { 46654359Sroberto device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 46754359Sroberto goto fail; 46854359Sroberto } 46954359Sroberto 47054359Sroberto error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 47154359Sroberto BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 47254359Sroberto if (error != 0) { 47354359Sroberto device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 47454359Sroberto goto fail; 47554359Sroberto } 47654359Sroberto 47754359Sroberto error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 47854359Sroberto count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr, 47954359Sroberto 0); 48054359Sroberto if (error != 0) { 48154359Sroberto device_printf(sc->sc_dev, "could not load desc DMA map\n"); 48254359Sroberto goto fail; 48354359Sroberto } 48454359Sroberto 48554359Sroberto ring->data = malloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF, 48654359Sroberto M_NOWAIT | M_ZERO); 48754359Sroberto if (ring->data == NULL) { 48854359Sroberto device_printf(sc->sc_dev, "could not allocate soft data\n"); 48954359Sroberto error = ENOMEM; 49054359Sroberto goto fail; 49154359Sroberto } 49254359Sroberto 49354359Sroberto error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 49454359Sroberto BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 49554359Sroberto MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, NULL, NULL, 49654359Sroberto &ring->data_dmat); 49754359Sroberto if (error != 0) { 49854359Sroberto device_printf(sc->sc_dev, "could not create data DMA tag\n"); 49954359Sroberto goto fail; 50054359Sroberto } 50154359Sroberto 50254359Sroberto for (i = 0; i < count; i++) { 50354359Sroberto error = bus_dmamap_create(ring->data_dmat, 0, 50454359Sroberto &ring->data[i].map); 50554359Sroberto if (error != 0) { 50654359Sroberto device_printf(sc->sc_dev, "could not create DMA map\n"); 50754359Sroberto goto fail; 50854359Sroberto } 50954359Sroberto } 51054359Sroberto 51154359Sroberto return 0; 51254359Sroberto 51354359Srobertofail: rt2560_free_tx_ring(sc, ring); 51454359Sroberto return error; 51554359Sroberto} 51654359Sroberto 51754359Srobertostatic void 51854359Srobertort2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring) 51954359Sroberto{ 52054359Sroberto struct rt2560_tx_desc *desc; 52154359Sroberto struct rt2560_tx_data *data; 52254359Sroberto int i; 52354359Sroberto 52454359Sroberto for (i = 0; i < ring->count; i++) { 52554359Sroberto desc = &ring->desc[i]; 52654359Sroberto data = &ring->data[i]; 52754359Sroberto 52854359Sroberto if (data->m != NULL) { 52954359Sroberto bus_dmamap_sync(ring->data_dmat, data->map, 53054359Sroberto BUS_DMASYNC_POSTWRITE); 53154359Sroberto bus_dmamap_unload(ring->data_dmat, data->map); 53254359Sroberto m_freem(data->m); 53354359Sroberto data->m = NULL; 53454359Sroberto } 53554359Sroberto 53654359Sroberto if (data->ni != NULL) { 53754359Sroberto ieee80211_free_node(data->ni); 53854359Sroberto data->ni = NULL; 53954359Sroberto } 54054359Sroberto 54154359Sroberto desc->flags = 0; 54254359Sroberto } 54354359Sroberto 54454359Sroberto bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE); 54554359Sroberto 54654359Sroberto ring->queued = 0; 54754359Sroberto ring->cur = ring->next = 0; 54854359Sroberto ring->cur_encrypt = ring->next_encrypt = 0; 54954359Sroberto} 55054359Sroberto 55154359Srobertostatic void 55254359Srobertort2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring) 55354359Sroberto{ 55454359Sroberto struct rt2560_tx_data *data; 55554359Sroberto int i; 55654359Sroberto 55754359Sroberto if (ring->desc != NULL) { 55854359Sroberto bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 55954359Sroberto BUS_DMASYNC_POSTWRITE); 56054359Sroberto bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 56154359Sroberto bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 56254359Sroberto } 56354359Sroberto 56454359Sroberto if (ring->desc_dmat != NULL) 56554359Sroberto bus_dma_tag_destroy(ring->desc_dmat); 56654359Sroberto 56754359Sroberto if (ring->data != NULL) { 56854359Sroberto for (i = 0; i < ring->count; i++) { 56954359Sroberto data = &ring->data[i]; 57054359Sroberto 57154359Sroberto if (data->m != NULL) { 57254359Sroberto bus_dmamap_sync(ring->data_dmat, data->map, 57354359Sroberto BUS_DMASYNC_POSTWRITE); 57454359Sroberto bus_dmamap_unload(ring->data_dmat, data->map); 57554359Sroberto m_freem(data->m); 57654359Sroberto } 57754359Sroberto 57854359Sroberto if (data->ni != NULL) 57954359Sroberto ieee80211_free_node(data->ni); 58054359Sroberto 58154359Sroberto if (data->map != NULL) 58254359Sroberto bus_dmamap_destroy(ring->data_dmat, data->map); 58354359Sroberto } 58454359Sroberto 58554359Sroberto free(ring->data, M_DEVBUF); 58654359Sroberto } 58754359Sroberto 58854359Sroberto if (ring->data_dmat != NULL) 58954359Sroberto bus_dma_tag_destroy(ring->data_dmat); 59054359Sroberto} 59154359Sroberto 59254359Srobertostatic int 59354359Srobertort2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring, 59454359Sroberto int count) 59554359Sroberto{ 59654359Sroberto struct rt2560_rx_desc *desc; 59754359Sroberto struct rt2560_rx_data *data; 59854359Sroberto bus_addr_t physaddr; 59954359Sroberto int i, error; 60054359Sroberto 60154359Sroberto ring->count = count; 60254359Sroberto ring->cur = ring->next = 0; 60354359Sroberto ring->cur_decrypt = 0; 60454359Sroberto 60554359Sroberto error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 60654359Sroberto BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 60754359Sroberto count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE, 60854359Sroberto 0, NULL, NULL, &ring->desc_dmat); 60954359Sroberto if (error != 0) { 61054359Sroberto device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 61154359Sroberto goto fail; 61254359Sroberto } 61354359Sroberto 61454359Sroberto error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 61554359Sroberto BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 61654359Sroberto if (error != 0) { 61754359Sroberto device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 61854359Sroberto goto fail; 61954359Sroberto } 62054359Sroberto 62154359Sroberto error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 62254359Sroberto count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr, 62354359Sroberto 0); 62454359Sroberto if (error != 0) { 62554359Sroberto device_printf(sc->sc_dev, "could not load desc DMA map\n"); 62654359Sroberto goto fail; 62754359Sroberto } 62854359Sroberto 62954359Sroberto ring->data = malloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF, 63054359Sroberto M_NOWAIT | M_ZERO); 63154359Sroberto if (ring->data == NULL) { 63254359Sroberto device_printf(sc->sc_dev, "could not allocate soft data\n"); 63354359Sroberto error = ENOMEM; 63454359Sroberto goto fail; 63554359Sroberto } 63654359Sroberto 63754359Sroberto /* 63854359Sroberto * Pre-allocate Rx buffers and populate Rx ring. 63954359Sroberto */ 64054359Sroberto error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 64154359Sroberto BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 64254359Sroberto 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 64354359Sroberto if (error != 0) { 64454359Sroberto device_printf(sc->sc_dev, "could not create data DMA tag\n"); 64554359Sroberto goto fail; 64654359Sroberto } 64754359Sroberto 64854359Sroberto for (i = 0; i < count; i++) { 64954359Sroberto desc = &sc->rxq.desc[i]; 65054359Sroberto data = &sc->rxq.data[i]; 65154359Sroberto 65254359Sroberto error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 65354359Sroberto if (error != 0) { 65454359Sroberto device_printf(sc->sc_dev, "could not create DMA map\n"); 65554359Sroberto goto fail; 65654359Sroberto } 65754359Sroberto 65854359Sroberto data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 65954359Sroberto if (data->m == NULL) { 66054359Sroberto device_printf(sc->sc_dev, 66154359Sroberto "could not allocate rx mbuf\n"); 66254359Sroberto error = ENOMEM; 66354359Sroberto goto fail; 66454359Sroberto } 66554359Sroberto 66654359Sroberto error = bus_dmamap_load(ring->data_dmat, data->map, 66754359Sroberto mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr, 66854359Sroberto &physaddr, 0); 66954359Sroberto if (error != 0) { 67054359Sroberto device_printf(sc->sc_dev, 67154359Sroberto "could not load rx buf DMA map"); 67254359Sroberto goto fail; 67354359Sroberto } 67454359Sroberto 67554359Sroberto desc->flags = htole32(RT2560_RX_BUSY); 67654359Sroberto desc->physaddr = htole32(physaddr); 67754359Sroberto } 67854359Sroberto 67954359Sroberto bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE); 68054359Sroberto 68154359Sroberto return 0; 68254359Sroberto 68354359Srobertofail: rt2560_free_rx_ring(sc, ring); 68454359Sroberto return error; 68554359Sroberto} 68654359Sroberto 68754359Srobertostatic void 68854359Srobertort2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring) 68954359Sroberto{ 69054359Sroberto int i; 69154359Sroberto 69254359Sroberto for (i = 0; i < ring->count; i++) { 69354359Sroberto ring->desc[i].flags = htole32(RT2560_RX_BUSY); 69454359Sroberto ring->data[i].drop = 0; 69554359Sroberto } 69654359Sroberto 69754359Sroberto bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE); 69854359Sroberto 69954359Sroberto ring->cur = ring->next = 0; 70054359Sroberto ring->cur_decrypt = 0; 70154359Sroberto} 70254359Sroberto 70354359Srobertostatic void 70454359Srobertort2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring) 70554359Sroberto{ 70654359Sroberto struct rt2560_rx_data *data; 70754359Sroberto int i; 70854359Sroberto 70954359Sroberto if (ring->desc != NULL) { 71054359Sroberto bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 71154359Sroberto BUS_DMASYNC_POSTWRITE); 71254359Sroberto bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 71354359Sroberto bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 71454359Sroberto } 71554359Sroberto 71654359Sroberto if (ring->desc_dmat != NULL) 71754359Sroberto bus_dma_tag_destroy(ring->desc_dmat); 71854359Sroberto 71954359Sroberto if (ring->data != NULL) { 72054359Sroberto for (i = 0; i < ring->count; i++) { 72154359Sroberto data = &ring->data[i]; 72254359Sroberto 72354359Sroberto if (data->m != NULL) { 72454359Sroberto bus_dmamap_sync(ring->data_dmat, data->map, 72554359Sroberto BUS_DMASYNC_POSTREAD); 72654359Sroberto bus_dmamap_unload(ring->data_dmat, data->map); 72754359Sroberto m_freem(data->m); 72854359Sroberto } 72954359Sroberto 73054359Sroberto if (data->map != NULL) 73154359Sroberto bus_dmamap_destroy(ring->data_dmat, data->map); 73254359Sroberto } 73354359Sroberto 73454359Sroberto free(ring->data, M_DEVBUF); 73554359Sroberto } 73654359Sroberto 73754359Sroberto if (ring->data_dmat != NULL) 73854359Sroberto bus_dma_tag_destroy(ring->data_dmat); 73954359Sroberto} 74054359Sroberto 74154359Srobertostatic int 74254359Srobertort2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 74354359Sroberto{ 74454359Sroberto struct rt2560_vap *rvp = RT2560_VAP(vap); 74554359Sroberto struct rt2560_softc *sc = vap->iv_ic->ic_softc; 74654359Sroberto int error; 74754359Sroberto 74854359Sroberto if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) { 74954359Sroberto /* abort TSF synchronization */ 75054359Sroberto RAL_WRITE(sc, RT2560_CSR14, 0); 75154359Sroberto 75254359Sroberto /* turn association led off */ 75354359Sroberto rt2560_update_led(sc, 0, 0); 75454359Sroberto } 75554359Sroberto 75654359Sroberto error = rvp->ral_newstate(vap, nstate, arg); 75754359Sroberto 75854359Sroberto if (error == 0 && nstate == IEEE80211_S_RUN) { 75954359Sroberto struct ieee80211_node *ni = vap->iv_bss; 76054359Sroberto struct mbuf *m; 76154359Sroberto 76254359Sroberto if (vap->iv_opmode != IEEE80211_M_MONITOR) { 76354359Sroberto rt2560_update_plcp(sc); 76454359Sroberto rt2560_set_basicrates(sc, &ni->ni_rates); 76554359Sroberto rt2560_set_bssid(sc, ni->ni_bssid); 76654359Sroberto } 76754359Sroberto 76854359Sroberto if (vap->iv_opmode == IEEE80211_M_HOSTAP || 76954359Sroberto vap->iv_opmode == IEEE80211_M_IBSS || 77054359Sroberto vap->iv_opmode == IEEE80211_M_MBSS) { 77154359Sroberto m = ieee80211_beacon_alloc(ni); 77254359Sroberto if (m == NULL) { 77354359Sroberto device_printf(sc->sc_dev, 77454359Sroberto "could not allocate beacon\n"); 77554359Sroberto return ENOBUFS; 77654359Sroberto } 77754359Sroberto ieee80211_ref_node(ni); 77854359Sroberto error = rt2560_tx_bcn(sc, m, ni); 77954359Sroberto if (error != 0) 78054359Sroberto return error; 78154359Sroberto } 78254359Sroberto 78354359Sroberto /* turn assocation led on */ 78454359Sroberto rt2560_update_led(sc, 1, 0); 78554359Sroberto 78654359Sroberto if (vap->iv_opmode != IEEE80211_M_MONITOR) 78754359Sroberto rt2560_enable_tsf_sync(sc); 78854359Sroberto else 78954359Sroberto rt2560_enable_tsf(sc); 79054359Sroberto } 79154359Sroberto return error; 79254359Sroberto} 79354359Sroberto 79454359Sroberto/* 79554359Sroberto * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or 79654359Sroberto * 93C66). 79754359Sroberto */ 79854359Srobertostatic uint16_t 79954359Srobertort2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr) 80054359Sroberto{ 80154359Sroberto uint32_t tmp; 80254359Sroberto uint16_t val; 80354359Sroberto int n; 80454359Sroberto 80554359Sroberto /* clock C once before the first command */ 80654359Sroberto RT2560_EEPROM_CTL(sc, 0); 80754359Sroberto 80854359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S); 80954359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C); 81054359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S); 81154359Sroberto 81254359Sroberto /* write start bit (1) */ 81354359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D); 81454359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C); 81554359Sroberto 81654359Sroberto /* write READ opcode (10) */ 81754359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D); 81854359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C); 81954359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S); 82054359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C); 82154359Sroberto 82254359Sroberto /* write address (A5-A0 or A7-A0) */ 82354359Sroberto n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7; 82454359Sroberto for (; n >= 0; n--) { 82554359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | 82654359Sroberto (((addr >> n) & 1) << RT2560_SHIFT_D)); 82754359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | 82854359Sroberto (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C); 82954359Sroberto } 83054359Sroberto 83154359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S); 83254359Sroberto 83354359Sroberto /* read data Q15-Q0 */ 83454359Sroberto val = 0; 83554359Sroberto for (n = 15; n >= 0; n--) { 83654359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C); 83754359Sroberto tmp = RAL_READ(sc, RT2560_CSR21); 83854359Sroberto val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n; 83954359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S); 84054359Sroberto } 84154359Sroberto 84254359Sroberto RT2560_EEPROM_CTL(sc, 0); 84354359Sroberto 84454359Sroberto /* clear Chip Select and clock C */ 84554359Sroberto RT2560_EEPROM_CTL(sc, RT2560_S); 84654359Sroberto RT2560_EEPROM_CTL(sc, 0); 84754359Sroberto RT2560_EEPROM_CTL(sc, RT2560_C); 84854359Sroberto 84954359Sroberto return val; 85054359Sroberto} 85154359Sroberto 85254359Sroberto/* 85354359Sroberto * Some frames were processed by the hardware cipher engine and are ready for 85454359Sroberto * transmission. 85554359Sroberto */ 85654359Srobertostatic void 85754359Srobertort2560_encryption_intr(struct rt2560_softc *sc) 85854359Sroberto{ 85954359Sroberto struct rt2560_tx_desc *desc; 86054359Sroberto int hw; 86154359Sroberto 86254359Sroberto /* retrieve last descriptor index processed by cipher engine */ 86354359Sroberto hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr; 86454359Sroberto hw /= RT2560_TX_DESC_SIZE; 86554359Sroberto 86654359Sroberto bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map, 86754359Sroberto BUS_DMASYNC_POSTREAD); 86854359Sroberto 86954359Sroberto while (sc->txq.next_encrypt != hw) { 87054359Sroberto if (sc->txq.next_encrypt == sc->txq.cur_encrypt) { 87154359Sroberto printf("hw encrypt %d, cur_encrypt %d\n", hw, 87254359Sroberto sc->txq.cur_encrypt); 87354359Sroberto break; 87454359Sroberto } 87554359Sroberto 87654359Sroberto desc = &sc->txq.desc[sc->txq.next_encrypt]; 87754359Sroberto 87854359Sroberto if ((le32toh(desc->flags) & RT2560_TX_BUSY) || 87954359Sroberto (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY)) 88054359Sroberto break; 88154359Sroberto 88254359Sroberto /* for TKIP, swap eiv field to fix a bug in ASIC */ 88354359Sroberto if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) == 88454359Sroberto RT2560_TX_CIPHER_TKIP) 88554359Sroberto desc->eiv = bswap32(desc->eiv); 88654359Sroberto 88754359Sroberto /* mark the frame ready for transmission */ 88854359Sroberto desc->flags |= htole32(RT2560_TX_VALID); 88954359Sroberto desc->flags |= htole32(RT2560_TX_BUSY); 89054359Sroberto 89154359Sroberto DPRINTFN(sc, 15, "encryption done idx=%u\n", 89254359Sroberto sc->txq.next_encrypt); 89354359Sroberto 89454359Sroberto sc->txq.next_encrypt = 89554359Sroberto (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT; 89654359Sroberto } 89754359Sroberto 89854359Sroberto bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map, 89954359Sroberto BUS_DMASYNC_PREWRITE); 90054359Sroberto 90154359Sroberto /* kick Tx */ 90254359Sroberto RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX); 90354359Sroberto} 90454359Sroberto 90554359Srobertostatic void 90654359Srobertort2560_tx_intr(struct rt2560_softc *sc) 90754359Sroberto{ 90854359Sroberto struct rt2560_tx_desc *desc; 90954359Sroberto struct rt2560_tx_data *data; 91054359Sroberto struct mbuf *m; 91154359Sroberto struct ieee80211vap *vap; 91254359Sroberto struct ieee80211_node *ni; 91354359Sroberto uint32_t flags; 91454359Sroberto int retrycnt, status; 91554359Sroberto 91654359Sroberto bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map, 91754359Sroberto BUS_DMASYNC_POSTREAD); 91854359Sroberto 91954359Sroberto for (;;) { 92054359Sroberto desc = &sc->txq.desc[sc->txq.next]; 92154359Sroberto data = &sc->txq.data[sc->txq.next]; 92254359Sroberto 92354359Sroberto flags = le32toh(desc->flags); 92454359Sroberto if ((flags & RT2560_TX_BUSY) || 92554359Sroberto (flags & RT2560_TX_CIPHER_BUSY) || 92654359Sroberto !(flags & RT2560_TX_VALID)) 92754359Sroberto break; 92854359Sroberto 92954359Sroberto m = data->m; 93054359Sroberto ni = data->ni; 93154359Sroberto vap = ni->ni_vap; 93254359Sroberto 93354359Sroberto switch (flags & RT2560_TX_RESULT_MASK) { 93454359Sroberto case RT2560_TX_SUCCESS: 93554359Sroberto retrycnt = 0; 93654359Sroberto 93754359Sroberto DPRINTFN(sc, 10, "%s\n", "data frame sent successfully"); 93854359Sroberto if (data->rix != IEEE80211_FIXED_RATE_NONE) 93954359Sroberto ieee80211_ratectl_tx_complete(vap, ni, 94054359Sroberto IEEE80211_RATECTL_TX_SUCCESS, 94154359Sroberto &retrycnt, NULL); 94254359Sroberto status = 0; 94354359Sroberto break; 94454359Sroberto 94554359Sroberto case RT2560_TX_SUCCESS_RETRY: 94654359Sroberto retrycnt = RT2560_TX_RETRYCNT(flags); 94754359Sroberto 94854359Sroberto DPRINTFN(sc, 9, "data frame sent after %u retries\n", 94954359Sroberto retrycnt); 95054359Sroberto if (data->rix != IEEE80211_FIXED_RATE_NONE) 95154359Sroberto ieee80211_ratectl_tx_complete(vap, ni, 95254359Sroberto IEEE80211_RATECTL_TX_SUCCESS, 95354359Sroberto &retrycnt, NULL); 95454359Sroberto status = 0; 95554359Sroberto break; 95654359Sroberto 95754359Sroberto case RT2560_TX_FAIL_RETRY: 95854359Sroberto retrycnt = RT2560_TX_RETRYCNT(flags); 95954359Sroberto 96054359Sroberto DPRINTFN(sc, 9, "data frame failed after %d retries\n", 96154359Sroberto retrycnt); 96254359Sroberto if (data->rix != IEEE80211_FIXED_RATE_NONE) 96354359Sroberto ieee80211_ratectl_tx_complete(vap, ni, 96454359Sroberto IEEE80211_RATECTL_TX_FAILURE, 96554359Sroberto &retrycnt, NULL); 96654359Sroberto status = 1; 96754359Sroberto break; 96854359Sroberto 96954359Sroberto case RT2560_TX_FAIL_INVALID: 97054359Sroberto case RT2560_TX_FAIL_OTHER: 97154359Sroberto default: 97254359Sroberto device_printf(sc->sc_dev, "sending data frame failed " 97354359Sroberto "0x%08x\n", flags); 97454359Sroberto status = 1; 97554359Sroberto } 97654359Sroberto 97754359Sroberto bus_dmamap_sync(sc->txq.data_dmat, data->map, 97854359Sroberto BUS_DMASYNC_POSTWRITE); 97954359Sroberto bus_dmamap_unload(sc->txq.data_dmat, data->map); 98054359Sroberto 98154359Sroberto ieee80211_tx_complete(ni, m, status); 98254359Sroberto data->ni = NULL; 98354359Sroberto data->m = NULL; 98454359Sroberto 98554359Sroberto /* descriptor is no longer valid */ 98654359Sroberto desc->flags &= ~htole32(RT2560_TX_VALID); 98754359Sroberto 98854359Sroberto DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next); 98954359Sroberto 99054359Sroberto sc->txq.queued--; 99154359Sroberto sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT; 99254359Sroberto } 99354359Sroberto 99454359Sroberto bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map, 99554359Sroberto BUS_DMASYNC_PREWRITE); 99654359Sroberto 99754359Sroberto if (sc->prioq.queued == 0 && sc->txq.queued == 0) 99854359Sroberto sc->sc_tx_timer = 0; 99954359Sroberto 100054359Sroberto if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) 100154359Sroberto rt2560_start(sc); 100254359Sroberto} 100354359Sroberto 100454359Srobertostatic void 100554359Srobertort2560_prio_intr(struct rt2560_softc *sc) 100654359Sroberto{ 100754359Sroberto struct rt2560_tx_desc *desc; 100854359Sroberto struct rt2560_tx_data *data; 100954359Sroberto struct ieee80211_node *ni; 101054359Sroberto struct mbuf *m; 101154359Sroberto int flags; 101254359Sroberto 101354359Sroberto bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map, 101454359Sroberto BUS_DMASYNC_POSTREAD); 101554359Sroberto 101654359Sroberto for (;;) { 101754359Sroberto desc = &sc->prioq.desc[sc->prioq.next]; 101854359Sroberto data = &sc->prioq.data[sc->prioq.next]; 101954359Sroberto 102054359Sroberto flags = le32toh(desc->flags); 102154359Sroberto if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0) 102254359Sroberto break; 102354359Sroberto 102454359Sroberto switch (flags & RT2560_TX_RESULT_MASK) { 102554359Sroberto case RT2560_TX_SUCCESS: 102654359Sroberto DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully"); 102754359Sroberto break; 102854359Sroberto 102954359Sroberto case RT2560_TX_SUCCESS_RETRY: 103054359Sroberto DPRINTFN(sc, 9, "mgt frame sent after %u retries\n", 103154359Sroberto (flags >> 5) & 0x7); 103254359Sroberto break; 103354359Sroberto 103454359Sroberto case RT2560_TX_FAIL_RETRY: 103554359Sroberto DPRINTFN(sc, 9, "%s\n", 103654359Sroberto "sending mgt frame failed (too much retries)"); 103754359Sroberto break; 103854359Sroberto 103954359Sroberto case RT2560_TX_FAIL_INVALID: 104054359Sroberto case RT2560_TX_FAIL_OTHER: 104154359Sroberto default: 104254359Sroberto device_printf(sc->sc_dev, "sending mgt frame failed " 104354359Sroberto "0x%08x\n", flags); 104454359Sroberto break; 104554359Sroberto } 104654359Sroberto 104754359Sroberto bus_dmamap_sync(sc->prioq.data_dmat, data->map, 104854359Sroberto BUS_DMASYNC_POSTWRITE); 104954359Sroberto bus_dmamap_unload(sc->prioq.data_dmat, data->map); 105054359Sroberto 105154359Sroberto m = data->m; 105254359Sroberto data->m = NULL; 105354359Sroberto ni = data->ni; 105454359Sroberto data->ni = NULL; 105554359Sroberto 105654359Sroberto /* descriptor is no longer valid */ 105754359Sroberto desc->flags &= ~htole32(RT2560_TX_VALID); 105854359Sroberto 105954359Sroberto DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next); 106054359Sroberto 106154359Sroberto sc->prioq.queued--; 106254359Sroberto sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT; 106354359Sroberto 106454359Sroberto if (m->m_flags & M_TXCB) 106554359Sroberto ieee80211_process_callback(ni, m, 106654359Sroberto (flags & RT2560_TX_RESULT_MASK) &~ 106754359Sroberto (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY)); 106854359Sroberto m_freem(m); 106954359Sroberto ieee80211_free_node(ni); 107054359Sroberto } 107154359Sroberto 107254359Sroberto bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map, 107354359Sroberto BUS_DMASYNC_PREWRITE); 107454359Sroberto 107554359Sroberto if (sc->prioq.queued == 0 && sc->txq.queued == 0) 107654359Sroberto sc->sc_tx_timer = 0; 107754359Sroberto 107854359Sroberto if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) 107954359Sroberto rt2560_start(sc); 108054359Sroberto} 108154359Sroberto 108254359Sroberto/* 108354359Sroberto * Some frames were processed by the hardware cipher engine and are ready for 108454359Sroberto * handoff to the IEEE802.11 layer. 108554359Sroberto */ 108654359Srobertostatic void 108754359Srobertort2560_decryption_intr(struct rt2560_softc *sc) 108854359Sroberto{ 108954359Sroberto struct ieee80211com *ic = &sc->sc_ic; 109054359Sroberto struct rt2560_rx_desc *desc; 109154359Sroberto struct rt2560_rx_data *data; 109254359Sroberto bus_addr_t physaddr; 109354359Sroberto struct ieee80211_frame *wh; 109454359Sroberto struct ieee80211_node *ni; 109554359Sroberto struct mbuf *mnew, *m; 109654359Sroberto int hw, error; 109754359Sroberto int8_t rssi, nf; 109854359Sroberto 109954359Sroberto /* retrieve last decriptor index processed by cipher engine */ 110054359Sroberto hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr; 110154359Sroberto hw /= RT2560_RX_DESC_SIZE; 110254359Sroberto 110354359Sroberto bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map, 110454359Sroberto BUS_DMASYNC_POSTREAD); 110554359Sroberto 110654359Sroberto for (; sc->rxq.cur_decrypt != hw;) { 110754359Sroberto desc = &sc->rxq.desc[sc->rxq.cur_decrypt]; 110854359Sroberto data = &sc->rxq.data[sc->rxq.cur_decrypt]; 110954359Sroberto 111054359Sroberto if ((le32toh(desc->flags) & RT2560_RX_BUSY) || 111154359Sroberto (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY)) 111254359Sroberto break; 111354359Sroberto 111454359Sroberto if (data->drop) { 111554359Sroberto counter_u64_add(ic->ic_ierrors, 1); 111654359Sroberto goto skip; 111754359Sroberto } 111854359Sroberto 111954359Sroberto if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 && 112054359Sroberto (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) { 112154359Sroberto counter_u64_add(ic->ic_ierrors, 1); 112254359Sroberto goto skip; 112354359Sroberto } 112454359Sroberto 112554359Sroberto /* 112654359Sroberto * Try to allocate a new mbuf for this ring element and load it 112754359Sroberto * before processing the current mbuf. If the ring element 112854359Sroberto * cannot be loaded, drop the received packet and reuse the old 112954359Sroberto * mbuf. In the unlikely case that the old mbuf can't be 113054359Sroberto * reloaded either, explicitly panic. 113154359Sroberto */ 113254359Sroberto mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 113354359Sroberto if (mnew == NULL) { 113454359Sroberto counter_u64_add(ic->ic_ierrors, 1); 113554359Sroberto goto skip; 113654359Sroberto } 113754359Sroberto 113854359Sroberto bus_dmamap_sync(sc->rxq.data_dmat, data->map, 113954359Sroberto BUS_DMASYNC_POSTREAD); 114054359Sroberto bus_dmamap_unload(sc->rxq.data_dmat, data->map); 114154359Sroberto 114254359Sroberto error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 114354359Sroberto mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr, 114454359Sroberto &physaddr, 0); 114554359Sroberto if (error != 0) { 114654359Sroberto m_freem(mnew); 114754359Sroberto 114854359Sroberto /* try to reload the old mbuf */ 114954359Sroberto error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 115054359Sroberto mtod(data->m, void *), MCLBYTES, 115154359Sroberto rt2560_dma_map_addr, &physaddr, 0); 115254359Sroberto if (error != 0) { 115354359Sroberto /* very unlikely that it will fail... */ 115454359Sroberto panic("%s: could not load old rx mbuf", 115554359Sroberto device_get_name(sc->sc_dev)); 115654359Sroberto } 115754359Sroberto counter_u64_add(ic->ic_ierrors, 1); 115854359Sroberto goto skip; 115954359Sroberto } 116054359Sroberto 116154359Sroberto /* 116254359Sroberto * New mbuf successfully loaded, update Rx ring and continue 116354359Sroberto * processing. 116454359Sroberto */ 116554359Sroberto m = data->m; 116654359Sroberto data->m = mnew; 116754359Sroberto desc->physaddr = htole32(physaddr); 116854359Sroberto 116954359Sroberto /* finalize mbuf */ 117054359Sroberto m->m_pkthdr.len = m->m_len = 117154359Sroberto (le32toh(desc->flags) >> 16) & 0xfff; 117254359Sroberto 117354359Sroberto rssi = RT2560_RSSI(sc, desc->rssi); 117454359Sroberto nf = RT2560_NOISE_FLOOR; 117554359Sroberto if (ieee80211_radiotap_active(ic)) { 117654359Sroberto struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap; 117754359Sroberto uint32_t tsf_lo, tsf_hi; 117854359Sroberto 117954359Sroberto /* get timestamp (low and high 32 bits) */ 118054359Sroberto tsf_hi = RAL_READ(sc, RT2560_CSR17); 118154359Sroberto tsf_lo = RAL_READ(sc, RT2560_CSR16); 118254359Sroberto 118354359Sroberto tap->wr_tsf = 118454359Sroberto htole64(((uint64_t)tsf_hi << 32) | tsf_lo); 118554359Sroberto tap->wr_flags = 0; 118654359Sroberto tap->wr_rate = ieee80211_plcp2rate(desc->rate, 118754359Sroberto (desc->flags & htole32(RT2560_RX_OFDM)) ? 118854359Sroberto IEEE80211_T_OFDM : IEEE80211_T_CCK); 118954359Sroberto tap->wr_antenna = sc->rx_ant; 119054359Sroberto tap->wr_antsignal = nf + rssi; 119154359Sroberto tap->wr_antnoise = nf; 119254359Sroberto } 119354359Sroberto 119454359Sroberto sc->sc_flags |= RT2560_F_INPUT_RUNNING; 119554359Sroberto RAL_UNLOCK(sc); 119654359Sroberto wh = mtod(m, struct ieee80211_frame *); 119754359Sroberto ni = ieee80211_find_rxnode(ic, 119854359Sroberto (struct ieee80211_frame_min *)wh); 119954359Sroberto if (ni != NULL) { 120054359Sroberto (void) ieee80211_input(ni, m, rssi, nf); 120154359Sroberto ieee80211_free_node(ni); 120254359Sroberto } else 120354359Sroberto (void) ieee80211_input_all(ic, m, rssi, nf); 120454359Sroberto 120554359Sroberto RAL_LOCK(sc); 120654359Sroberto sc->sc_flags &= ~RT2560_F_INPUT_RUNNING; 120754359Srobertoskip: desc->flags = htole32(RT2560_RX_BUSY); 120854359Sroberto 120954359Sroberto DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt); 121054359Sroberto 121154359Sroberto sc->rxq.cur_decrypt = 121254359Sroberto (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT; 121354359Sroberto } 121454359Sroberto 121554359Sroberto bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map, 121654359Sroberto BUS_DMASYNC_PREWRITE); 121754359Sroberto} 121854359Sroberto 121954359Sroberto/* 122054359Sroberto * Some frames were received. Pass them to the hardware cipher engine before 122154359Sroberto * sending them to the 802.11 layer. 122254359Sroberto */ 122354359Srobertostatic void 122454359Srobertort2560_rx_intr(struct rt2560_softc *sc) 122554359Sroberto{ 122654359Sroberto struct rt2560_rx_desc *desc; 122754359Sroberto struct rt2560_rx_data *data; 122854359Sroberto 122954359Sroberto bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map, 123054359Sroberto BUS_DMASYNC_POSTREAD); 123154359Sroberto 123254359Sroberto for (;;) { 123354359Sroberto desc = &sc->rxq.desc[sc->rxq.cur]; 123454359Sroberto data = &sc->rxq.data[sc->rxq.cur]; 123554359Sroberto 123654359Sroberto if ((le32toh(desc->flags) & RT2560_RX_BUSY) || 123754359Sroberto (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY)) 123854359Sroberto break; 123954359Sroberto 124054359Sroberto data->drop = 0; 124154359Sroberto 124254359Sroberto if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) || 124354359Sroberto (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) { 124454359Sroberto /* 124554359Sroberto * This should not happen since we did not request 124654359Sroberto * to receive those frames when we filled RXCSR0. 124754359Sroberto */ 124854359Sroberto DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n", 124954359Sroberto le32toh(desc->flags)); 125054359Sroberto data->drop = 1; 125154359Sroberto } 125254359Sroberto 125354359Sroberto if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) { 125454359Sroberto DPRINTFN(sc, 5, "%s\n", "bad length"); 125554359Sroberto data->drop = 1; 125654359Sroberto } 125754359Sroberto 125854359Sroberto /* mark the frame for decryption */ 125954359Sroberto desc->flags |= htole32(RT2560_RX_CIPHER_BUSY); 126054359Sroberto 126154359Sroberto DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur); 126254359Sroberto 126354359Sroberto sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT; 126454359Sroberto } 126554359Sroberto 126654359Sroberto bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map, 126754359Sroberto BUS_DMASYNC_PREWRITE); 126854359Sroberto 126954359Sroberto /* kick decrypt */ 127054359Sroberto RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT); 127154359Sroberto} 127254359Sroberto 127354359Srobertostatic void 127454359Srobertort2560_beacon_update(struct ieee80211vap *vap, int item) 127554359Sroberto{ 127654359Sroberto struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 127754359Sroberto 127854359Sroberto setbit(bo->bo_flags, item); 127954359Sroberto} 128054359Sroberto 128154359Sroberto/* 128254359Sroberto * This function is called periodically in IBSS mode when a new beacon must be 128354359Sroberto * sent out. 128454359Sroberto */ 128554359Srobertostatic void 128654359Srobertort2560_beacon_expire(struct rt2560_softc *sc) 128754359Sroberto{ 128854359Sroberto struct ieee80211com *ic = &sc->sc_ic; 128954359Sroberto struct rt2560_tx_data *data; 129054359Sroberto 129154359Sroberto if (ic->ic_opmode != IEEE80211_M_IBSS && 129254359Sroberto ic->ic_opmode != IEEE80211_M_HOSTAP && 129354359Sroberto ic->ic_opmode != IEEE80211_M_MBSS) 129454359Sroberto return; 129554359Sroberto 129654359Sroberto data = &sc->bcnq.data[sc->bcnq.next]; 129754359Sroberto /* 129854359Sroberto * Don't send beacon if bsschan isn't set 129954359Sroberto */ 130054359Sroberto if (data->ni == NULL) 130154359Sroberto return; 130254359Sroberto 130354359Sroberto bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 130454359Sroberto bus_dmamap_unload(sc->bcnq.data_dmat, data->map); 130554359Sroberto 130654359Sroberto /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */ 130754359Sroberto ieee80211_beacon_update(data->ni, data->m, 1); 130854359Sroberto 130954359Sroberto rt2560_tx_bcn(sc, data->m, data->ni); 131054359Sroberto 131154359Sroberto DPRINTFN(sc, 15, "%s", "beacon expired\n"); 131254359Sroberto 131354359Sroberto sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT; 131454359Sroberto} 131554359Sroberto 131654359Sroberto/* ARGSUSED */ 131754359Srobertostatic void 131854359Srobertort2560_wakeup_expire(struct rt2560_softc *sc) 131954359Sroberto{ 132054359Sroberto DPRINTFN(sc, 2, "%s", "wakeup expired\n"); 132154359Sroberto} 132254359Sroberto 132354359Srobertovoid 132454359Srobertort2560_intr(void *arg) 132554359Sroberto{ 132654359Sroberto struct rt2560_softc *sc = arg; 132754359Sroberto uint32_t r; 132854359Sroberto 132954359Sroberto RAL_LOCK(sc); 133054359Sroberto 133154359Sroberto /* disable interrupts */ 133254359Sroberto RAL_WRITE(sc, RT2560_CSR8, 0xffffffff); 133354359Sroberto 133454359Sroberto /* don't re-enable interrupts if we're shutting down */ 133554359Sroberto if (!(sc->sc_flags & RT2560_F_RUNNING)) { 133654359Sroberto RAL_UNLOCK(sc); 133754359Sroberto return; 133854359Sroberto } 133954359Sroberto 134054359Sroberto r = RAL_READ(sc, RT2560_CSR7); 134154359Sroberto RAL_WRITE(sc, RT2560_CSR7, r); 134254359Sroberto 134354359Sroberto if (r & RT2560_BEACON_EXPIRE) 134454359Sroberto rt2560_beacon_expire(sc); 134554359Sroberto 134654359Sroberto if (r & RT2560_WAKEUP_EXPIRE) 134754359Sroberto rt2560_wakeup_expire(sc); 134854359Sroberto 134954359Sroberto if (r & RT2560_ENCRYPTION_DONE) 135054359Sroberto rt2560_encryption_intr(sc); 135154359Sroberto 135254359Sroberto if (r & RT2560_TX_DONE) 135354359Sroberto rt2560_tx_intr(sc); 135454359Sroberto 135554359Sroberto if (r & RT2560_PRIO_DONE) 135654359Sroberto rt2560_prio_intr(sc); 135754359Sroberto 135854359Sroberto if (r & RT2560_DECRYPTION_DONE) 135954359Sroberto rt2560_decryption_intr(sc); 136054359Sroberto 136154359Sroberto if (r & RT2560_RX_DONE) { 136254359Sroberto rt2560_rx_intr(sc); 136354359Sroberto rt2560_encryption_intr(sc); 136454359Sroberto } 136554359Sroberto 136654359Sroberto /* re-enable interrupts */ 136754359Sroberto RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK); 136854359Sroberto 136954359Sroberto RAL_UNLOCK(sc); 137054359Sroberto} 137154359Sroberto 137254359Sroberto#define RAL_SIFS 10 /* us */ 137354359Sroberto 137454359Sroberto#define RT2560_TXRX_TURNAROUND 10 /* us */ 137554359Sroberto 137654359Srobertostatic uint8_t 137754359Srobertort2560_plcp_signal(int rate) 137854359Sroberto{ 137954359Sroberto switch (rate) { 138054359Sroberto /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 138154359Sroberto case 12: return 0xb; 138254359Sroberto case 18: return 0xf; 138354359Sroberto case 24: return 0xa; 138454359Sroberto case 36: return 0xe; 138554359Sroberto case 48: return 0x9; 138654359Sroberto case 72: return 0xd; 138754359Sroberto case 96: return 0x8; 138854359Sroberto case 108: return 0xc; 138954359Sroberto 139054359Sroberto /* CCK rates (NB: not IEEE std, device-specific) */ 139154359Sroberto case 2: return 0x0; 139254359Sroberto case 4: return 0x1; 139354359Sroberto case 11: return 0x2; 139454359Sroberto case 22: return 0x3; 139554359Sroberto } 139654359Sroberto return 0xff; /* XXX unsupported/unknown rate */ 139754359Sroberto} 139854359Sroberto 139954359Srobertostatic void 140054359Srobertort2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc, 140154359Sroberto uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr) 140254359Sroberto{ 140354359Sroberto struct ieee80211com *ic = &sc->sc_ic; 140454359Sroberto uint16_t plcp_length; 140554359Sroberto int remainder; 140654359Sroberto 140754359Sroberto desc->flags = htole32(flags); 140854359Sroberto desc->flags |= htole32(len << 16); 140954359Sroberto 141054359Sroberto desc->physaddr = htole32(physaddr); 141154359Sroberto desc->wme = htole16( 141254359Sroberto RT2560_AIFSN(2) | 141354359Sroberto RT2560_LOGCWMIN(3) | 141454359Sroberto RT2560_LOGCWMAX(8)); 141554359Sroberto 141654359Sroberto /* setup PLCP fields */ 141754359Sroberto desc->plcp_signal = rt2560_plcp_signal(rate); 141854359Sroberto desc->plcp_service = 4; 141954359Sroberto 142054359Sroberto len += IEEE80211_CRC_LEN; 142154359Sroberto if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 142254359Sroberto desc->flags |= htole32(RT2560_TX_OFDM); 142354359Sroberto 142454359Sroberto plcp_length = len & 0xfff; 142554359Sroberto desc->plcp_length_hi = plcp_length >> 6; 142654359Sroberto desc->plcp_length_lo = plcp_length & 0x3f; 142754359Sroberto } else { 142854359Sroberto plcp_length = howmany(16 * len, rate); 142954359Sroberto if (rate == 22) { 143054359Sroberto remainder = (16 * len) % 22; 143154359Sroberto if (remainder != 0 && remainder < 7) 143254359Sroberto desc->plcp_service |= RT2560_PLCP_LENGEXT; 143354359Sroberto } 143454359Sroberto desc->plcp_length_hi = plcp_length >> 8; 143554359Sroberto desc->plcp_length_lo = plcp_length & 0xff; 143654359Sroberto 143754359Sroberto if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 143854359Sroberto desc->plcp_signal |= 0x08; 143954359Sroberto } 144054359Sroberto 144154359Sroberto if (!encrypt) 144254359Sroberto desc->flags |= htole32(RT2560_TX_VALID); 144354359Sroberto desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY) 144454359Sroberto : htole32(RT2560_TX_BUSY); 144554359Sroberto} 144654359Sroberto 144754359Srobertostatic int 144854359Srobertort2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0, 144954359Sroberto struct ieee80211_node *ni) 145054359Sroberto{ 145154359Sroberto struct ieee80211vap *vap = ni->ni_vap; 145254359Sroberto struct rt2560_tx_desc *desc; 145354359Sroberto struct rt2560_tx_data *data; 145454359Sroberto bus_dma_segment_t segs[RT2560_MAX_SCATTER]; 145554359Sroberto int nsegs, rate, error; 145654359Sroberto 145754359Sroberto desc = &sc->bcnq.desc[sc->bcnq.cur]; 145854359Sroberto data = &sc->bcnq.data[sc->bcnq.cur]; 145954359Sroberto 146054359Sroberto /* XXX maybe a separate beacon rate? */ 146154359Sroberto rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate; 146254359Sroberto 146354359Sroberto error = bus_dmamap_load_mbuf_sg(sc->bcnq.data_dmat, data->map, m0, 146454359Sroberto segs, &nsegs, BUS_DMA_NOWAIT); 146554359Sroberto if (error != 0) { 146654359Sroberto device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 146754359Sroberto error); 146854359Sroberto m_freem(m0); 146954359Sroberto return error; 147054359Sroberto } 147154359Sroberto 147254359Sroberto if (ieee80211_radiotap_active_vap(vap)) { 147354359Sroberto struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap; 147454359Sroberto 147554359Sroberto tap->wt_flags = 0; 147654359Sroberto tap->wt_rate = rate; 147754359Sroberto tap->wt_antenna = sc->tx_ant; 147854359Sroberto 147954359Sroberto ieee80211_radiotap_tx(vap, m0); 148054359Sroberto } 148154359Sroberto 148254359Sroberto data->m = m0; 148354359Sroberto data->ni = ni; 148454359Sroberto 148554359Sroberto rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF | 148654359Sroberto RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr); 148754359Sroberto 148854359Sroberto DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n", 148954359Sroberto m0->m_pkthdr.len, sc->bcnq.cur, rate); 149054359Sroberto 149154359Sroberto bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE); 149254359Sroberto bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map, 149354359Sroberto BUS_DMASYNC_PREWRITE); 149454359Sroberto 149554359Sroberto sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT; 149654359Sroberto 149754359Sroberto return 0; 149854359Sroberto} 149954359Sroberto 150054359Srobertostatic int 150154359Srobertort2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0, 150254359Sroberto struct ieee80211_node *ni) 150354359Sroberto{ 150454359Sroberto struct ieee80211vap *vap = ni->ni_vap; 150554359Sroberto struct ieee80211com *ic = ni->ni_ic; 150654359Sroberto struct rt2560_tx_desc *desc; 150754359Sroberto struct rt2560_tx_data *data; 150854359Sroberto struct ieee80211_frame *wh; 150954359Sroberto struct ieee80211_key *k; 151054359Sroberto bus_dma_segment_t segs[RT2560_MAX_SCATTER]; 151154359Sroberto uint16_t dur; 151254359Sroberto uint32_t flags = 0; 151354359Sroberto int nsegs, rate, error; 151454359Sroberto 151554359Sroberto desc = &sc->prioq.desc[sc->prioq.cur]; 151654359Sroberto data = &sc->prioq.data[sc->prioq.cur]; 151754359Sroberto 151854359Sroberto rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate; 151954359Sroberto 152054359Sroberto wh = mtod(m0, struct ieee80211_frame *); 152154359Sroberto 152254359Sroberto if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 152354359Sroberto k = ieee80211_crypto_encap(ni, m0); 152454359Sroberto if (k == NULL) { 152554359Sroberto m_freem(m0); 152654359Sroberto return ENOBUFS; 152754359Sroberto } 152854359Sroberto } 152954359Sroberto 153054359Sroberto error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0, 153154359Sroberto segs, &nsegs, 0); 153254359Sroberto if (error != 0) { 153354359Sroberto device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 153454359Sroberto error); 153554359Sroberto m_freem(m0); 153654359Sroberto return error; 153754359Sroberto } 153854359Sroberto 153954359Sroberto if (ieee80211_radiotap_active_vap(vap)) { 154054359Sroberto struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap; 154154359Sroberto 154254359Sroberto tap->wt_flags = 0; 154354359Sroberto tap->wt_rate = rate; 154454359Sroberto tap->wt_antenna = sc->tx_ant; 154554359Sroberto 154654359Sroberto ieee80211_radiotap_tx(vap, m0); 154754359Sroberto } 154854359Sroberto 154954359Sroberto data->m = m0; 155054359Sroberto data->ni = ni; 155154359Sroberto /* management frames are not taken into account for amrr */ 155254359Sroberto data->rix = IEEE80211_FIXED_RATE_NONE; 155354359Sroberto 155454359Sroberto wh = mtod(m0, struct ieee80211_frame *); 155554359Sroberto 155654359Sroberto if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 155754359Sroberto flags |= RT2560_TX_ACK; 155854359Sroberto 155954359Sroberto dur = ieee80211_ack_duration(ic->ic_rt, 156054359Sroberto rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE); 156154359Sroberto *(uint16_t *)wh->i_dur = htole16(dur); 156254359Sroberto 156354359Sroberto /* tell hardware to add timestamp for probe responses */ 156454359Sroberto if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 156554359Sroberto IEEE80211_FC0_TYPE_MGT && 156654359Sroberto (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 156754359Sroberto IEEE80211_FC0_SUBTYPE_PROBE_RESP) 156854359Sroberto flags |= RT2560_TX_TIMESTAMP; 156954359Sroberto } 157054359Sroberto 157154359Sroberto rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0, 157254359Sroberto segs->ds_addr); 157354359Sroberto 157454359Sroberto bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE); 157554359Sroberto bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map, 157654359Sroberto BUS_DMASYNC_PREWRITE); 157754359Sroberto 157854359Sroberto DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n", 157954359Sroberto m0->m_pkthdr.len, sc->prioq.cur, rate); 158054359Sroberto 158154359Sroberto /* kick prio */ 158254359Sroberto sc->prioq.queued++; 158354359Sroberto sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT; 158454359Sroberto RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO); 158554359Sroberto 158654359Sroberto return 0; 158754359Sroberto} 158854359Sroberto 158954359Srobertostatic int 159054359Srobertort2560_sendprot(struct rt2560_softc *sc, 159154359Sroberto const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 159254359Sroberto{ 159354359Sroberto struct ieee80211com *ic = ni->ni_ic; 159454359Sroberto const struct ieee80211_frame *wh; 159554359Sroberto struct rt2560_tx_desc *desc; 159654359Sroberto struct rt2560_tx_data *data; 159754359Sroberto struct mbuf *mprot; 159854359Sroberto int protrate, ackrate, pktlen, flags, isshort, error; 159954359Sroberto uint16_t dur; 160054359Sroberto bus_dma_segment_t segs[RT2560_MAX_SCATTER]; 160154359Sroberto int nsegs; 160254359Sroberto 160354359Sroberto KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 160454359Sroberto ("protection %d", prot)); 160554359Sroberto 160654359Sroberto wh = mtod(m, const struct ieee80211_frame *); 160754359Sroberto pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 160854359Sroberto 160954359Sroberto protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 161054359Sroberto ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 161154359Sroberto 161254359Sroberto isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 161354359Sroberto dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 161454359Sroberto + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 161554359Sroberto flags = RT2560_TX_MORE_FRAG; 161654359Sroberto if (prot == IEEE80211_PROT_RTSCTS) { 161754359Sroberto /* NB: CTS is the same size as an ACK */ 161854359Sroberto dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 161954359Sroberto flags |= RT2560_TX_ACK; 162054359Sroberto mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 162154359Sroberto } else { 162254359Sroberto mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 162354359Sroberto } 162454359Sroberto if (mprot == NULL) { 162554359Sroberto /* XXX stat + msg */ 162654359Sroberto return ENOBUFS; 162754359Sroberto } 162854359Sroberto 162954359Sroberto desc = &sc->txq.desc[sc->txq.cur_encrypt]; 163054359Sroberto data = &sc->txq.data[sc->txq.cur_encrypt]; 163154359Sroberto 163254359Sroberto error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, 163354359Sroberto mprot, segs, &nsegs, 0); 163454359Sroberto if (error != 0) { 163554359Sroberto device_printf(sc->sc_dev, 163654359Sroberto "could not map mbuf (error %d)\n", error); 163754359Sroberto m_freem(mprot); 163854359Sroberto return error; 163954359Sroberto } 164054359Sroberto 164154359Sroberto data->m = mprot; 164254359Sroberto data->ni = ieee80211_ref_node(ni); 164354359Sroberto /* ctl frames are not taken into account for amrr */ 164454359Sroberto data->rix = IEEE80211_FIXED_RATE_NONE; 164554359Sroberto 164654359Sroberto rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1, 164754359Sroberto segs->ds_addr); 164854359Sroberto 164954359Sroberto bus_dmamap_sync(sc->txq.data_dmat, data->map, 165054359Sroberto BUS_DMASYNC_PREWRITE); 165154359Sroberto 165254359Sroberto sc->txq.queued++; 165354359Sroberto sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT; 165454359Sroberto 165554359Sroberto return 0; 165654359Sroberto} 165754359Sroberto 165854359Srobertostatic int 165954359Srobertort2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0, 166054359Sroberto struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 166154359Sroberto{ 166254359Sroberto struct ieee80211vap *vap = ni->ni_vap; 166354359Sroberto struct ieee80211com *ic = ni->ni_ic; 166454359Sroberto struct rt2560_tx_desc *desc; 166554359Sroberto struct rt2560_tx_data *data; 166654359Sroberto bus_dma_segment_t segs[RT2560_MAX_SCATTER]; 166754359Sroberto uint32_t flags; 166854359Sroberto int nsegs, rate, error; 166954359Sroberto 167054359Sroberto desc = &sc->prioq.desc[sc->prioq.cur]; 167154359Sroberto data = &sc->prioq.data[sc->prioq.cur]; 167254359Sroberto 167354359Sroberto rate = params->ibp_rate0; 167454359Sroberto if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 167554359Sroberto /* XXX fall back to mcast/mgmt rate? */ 167654359Sroberto m_freem(m0); 167754359Sroberto return EINVAL; 167854359Sroberto } 167954359Sroberto 168054359Sroberto flags = 0; 168154359Sroberto if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 168254359Sroberto flags |= RT2560_TX_ACK; 168354359Sroberto if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 168454359Sroberto error = rt2560_sendprot(sc, m0, ni, 168554359Sroberto params->ibp_flags & IEEE80211_BPF_RTS ? 168654359Sroberto IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 168754359Sroberto rate); 168854359Sroberto if (error) { 168954359Sroberto m_freem(m0); 169054359Sroberto return error; 169154359Sroberto } 169254359Sroberto flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS; 169354359Sroberto } 169454359Sroberto 169554359Sroberto error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0, 169654359Sroberto segs, &nsegs, 0); 169754359Sroberto if (error != 0) { 169854359Sroberto device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 169954359Sroberto error); 170054359Sroberto m_freem(m0); 170154359Sroberto return error; 170254359Sroberto } 170354359Sroberto 170454359Sroberto if (ieee80211_radiotap_active_vap(vap)) { 170554359Sroberto struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap; 170654359Sroberto 170754359Sroberto tap->wt_flags = 0; 170854359Sroberto tap->wt_rate = rate; 170954359Sroberto tap->wt_antenna = sc->tx_ant; 171054359Sroberto 171154359Sroberto ieee80211_radiotap_tx(ni->ni_vap, m0); 171254359Sroberto } 171354359Sroberto 171454359Sroberto data->m = m0; 171554359Sroberto data->ni = ni; 171654359Sroberto 171754359Sroberto /* XXX need to setup descriptor ourself */ 171854359Sroberto rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, 171954359Sroberto rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0, 172054359Sroberto segs->ds_addr); 172154359Sroberto 172254359Sroberto bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE); 172354359Sroberto bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map, 172454359Sroberto BUS_DMASYNC_PREWRITE); 172554359Sroberto 172654359Sroberto DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n", 172754359Sroberto m0->m_pkthdr.len, sc->prioq.cur, rate); 172854359Sroberto 172954359Sroberto /* kick prio */ 173054359Sroberto sc->prioq.queued++; 173154359Sroberto sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT; 173254359Sroberto RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO); 173354359Sroberto 173454359Sroberto return 0; 173554359Sroberto} 173654359Sroberto 173754359Srobertostatic int 173854359Srobertort2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0, 173954359Sroberto struct ieee80211_node *ni) 174054359Sroberto{ 174154359Sroberto struct ieee80211vap *vap = ni->ni_vap; 174254359Sroberto struct ieee80211com *ic = ni->ni_ic; 174354359Sroberto struct rt2560_tx_desc *desc; 174454359Sroberto struct rt2560_tx_data *data; 174554359Sroberto struct ieee80211_frame *wh; 174654359Sroberto const struct ieee80211_txparam *tp; 174754359Sroberto struct ieee80211_key *k; 174854359Sroberto struct mbuf *mnew; 174954359Sroberto bus_dma_segment_t segs[RT2560_MAX_SCATTER]; 175054359Sroberto uint16_t dur; 175154359Sroberto uint32_t flags; 175254359Sroberto int nsegs, rate, error; 175354359Sroberto 175454359Sroberto wh = mtod(m0, struct ieee80211_frame *); 175554359Sroberto 175654359Sroberto tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 175754359Sroberto if (IEEE80211_IS_MULTICAST(wh->i_addr1)) { 175854359Sroberto rate = tp->mcastrate; 175954359Sroberto } else if (m0->m_flags & M_EAPOL) { 176054359Sroberto rate = tp->mgmtrate; 176154359Sroberto } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 176254359Sroberto rate = tp->ucastrate; 176354359Sroberto } else { 176454359Sroberto (void) ieee80211_ratectl_rate(ni, NULL, 0); 176554359Sroberto rate = ni->ni_txrate; 176654359Sroberto } 176754359Sroberto 176854359Sroberto if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 176954359Sroberto k = ieee80211_crypto_encap(ni, m0); 177054359Sroberto if (k == NULL) { 177154359Sroberto m_freem(m0); 177254359Sroberto return ENOBUFS; 177354359Sroberto } 177454359Sroberto 1775 /* packet header may have moved, reset our local pointer */ 1776 wh = mtod(m0, struct ieee80211_frame *); 1777 } 1778 1779 flags = 0; 1780 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1781 int prot = IEEE80211_PROT_NONE; 1782 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1783 prot = IEEE80211_PROT_RTSCTS; 1784 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1785 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1786 prot = ic->ic_protmode; 1787 if (prot != IEEE80211_PROT_NONE) { 1788 error = rt2560_sendprot(sc, m0, ni, prot, rate); 1789 if (error) { 1790 m_freem(m0); 1791 return error; 1792 } 1793 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS; 1794 } 1795 } 1796 1797 data = &sc->txq.data[sc->txq.cur_encrypt]; 1798 desc = &sc->txq.desc[sc->txq.cur_encrypt]; 1799 1800 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, m0, 1801 segs, &nsegs, 0); 1802 if (error != 0 && error != EFBIG) { 1803 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1804 error); 1805 m_freem(m0); 1806 return error; 1807 } 1808 if (error != 0) { 1809 mnew = m_defrag(m0, M_NOWAIT); 1810 if (mnew == NULL) { 1811 device_printf(sc->sc_dev, 1812 "could not defragment mbuf\n"); 1813 m_freem(m0); 1814 return ENOBUFS; 1815 } 1816 m0 = mnew; 1817 1818 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, 1819 m0, segs, &nsegs, 0); 1820 if (error != 0) { 1821 device_printf(sc->sc_dev, 1822 "could not map mbuf (error %d)\n", error); 1823 m_freem(m0); 1824 return error; 1825 } 1826 1827 /* packet header may have moved, reset our local pointer */ 1828 wh = mtod(m0, struct ieee80211_frame *); 1829 } 1830 1831 if (ieee80211_radiotap_active_vap(vap)) { 1832 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap; 1833 1834 tap->wt_flags = 0; 1835 tap->wt_rate = rate; 1836 tap->wt_antenna = sc->tx_ant; 1837 1838 ieee80211_radiotap_tx(vap, m0); 1839 } 1840 1841 data->m = m0; 1842 data->ni = ni; 1843 1844 /* remember link conditions for rate adaptation algorithm */ 1845 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) { 1846 data->rix = ni->ni_txrate; 1847 /* XXX probably need last rssi value and not avg */ 1848 data->rssi = ic->ic_node_getrssi(ni); 1849 } else 1850 data->rix = IEEE80211_FIXED_RATE_NONE; 1851 1852 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1853 flags |= RT2560_TX_ACK; 1854 1855 dur = ieee80211_ack_duration(ic->ic_rt, 1856 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1857 *(uint16_t *)wh->i_dur = htole16(dur); 1858 } 1859 1860 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1, 1861 segs->ds_addr); 1862 1863 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1864 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map, 1865 BUS_DMASYNC_PREWRITE); 1866 1867 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n", 1868 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate); 1869 1870 /* kick encrypt */ 1871 sc->txq.queued++; 1872 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT; 1873 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT); 1874 1875 return 0; 1876} 1877 1878static int 1879rt2560_transmit(struct ieee80211com *ic, struct mbuf *m) 1880{ 1881 struct rt2560_softc *sc = ic->ic_softc; 1882 int error; 1883 1884 RAL_LOCK(sc); 1885 if ((sc->sc_flags & RT2560_F_RUNNING) == 0) { 1886 RAL_UNLOCK(sc); 1887 return (ENXIO); 1888 } 1889 error = mbufq_enqueue(&sc->sc_snd, m); 1890 if (error) { 1891 RAL_UNLOCK(sc); 1892 return (error); 1893 } 1894 rt2560_start(sc); 1895 RAL_UNLOCK(sc); 1896 1897 return (0); 1898} 1899 1900static void 1901rt2560_start(struct rt2560_softc *sc) 1902{ 1903 struct ieee80211_node *ni; 1904 struct mbuf *m; 1905 1906 RAL_LOCK_ASSERT(sc); 1907 1908 while (sc->txq.queued < RT2560_TX_RING_COUNT - 1 && 1909 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1910 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1911 if (rt2560_tx_data(sc, m, ni) != 0) { 1912 if_inc_counter(ni->ni_vap->iv_ifp, 1913 IFCOUNTER_OERRORS, 1); 1914 ieee80211_free_node(ni); 1915 break; 1916 } 1917 sc->sc_tx_timer = 5; 1918 } 1919} 1920 1921static void 1922rt2560_watchdog(void *arg) 1923{ 1924 struct rt2560_softc *sc = arg; 1925 1926 RAL_LOCK_ASSERT(sc); 1927 1928 KASSERT(sc->sc_flags & RT2560_F_RUNNING, ("not running")); 1929 1930 if (sc->sc_invalid) /* card ejected */ 1931 return; 1932 1933 rt2560_encryption_intr(sc); 1934 rt2560_tx_intr(sc); 1935 1936 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) { 1937 device_printf(sc->sc_dev, "device timeout\n"); 1938 rt2560_init_locked(sc); 1939 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 1940 /* NB: callout is reset in rt2560_init() */ 1941 return; 1942 } 1943 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc); 1944} 1945 1946static void 1947rt2560_parent(struct ieee80211com *ic) 1948{ 1949 struct rt2560_softc *sc = ic->ic_softc; 1950 int startall = 0; 1951 1952 RAL_LOCK(sc); 1953 if (ic->ic_nrunning > 0) { 1954 if ((sc->sc_flags & RT2560_F_RUNNING) == 0) { 1955 rt2560_init_locked(sc); 1956 startall = 1; 1957 } else 1958 rt2560_update_promisc(ic); 1959 } else if (sc->sc_flags & RT2560_F_RUNNING) 1960 rt2560_stop_locked(sc); 1961 RAL_UNLOCK(sc); 1962 if (startall) 1963 ieee80211_start_all(ic); 1964} 1965 1966static void 1967rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val) 1968{ 1969 uint32_t tmp; 1970 int ntries; 1971 1972 for (ntries = 0; ntries < 100; ntries++) { 1973 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY)) 1974 break; 1975 DELAY(1); 1976 } 1977 if (ntries == 100) { 1978 device_printf(sc->sc_dev, "could not write to BBP\n"); 1979 return; 1980 } 1981 1982 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val; 1983 RAL_WRITE(sc, RT2560_BBPCSR, tmp); 1984 1985 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val); 1986} 1987 1988static uint8_t 1989rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg) 1990{ 1991 uint32_t val; 1992 int ntries; 1993 1994 for (ntries = 0; ntries < 100; ntries++) { 1995 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY)) 1996 break; 1997 DELAY(1); 1998 } 1999 if (ntries == 100) { 2000 device_printf(sc->sc_dev, "could not read from BBP\n"); 2001 return 0; 2002 } 2003 2004 val = RT2560_BBP_BUSY | reg << 8; 2005 RAL_WRITE(sc, RT2560_BBPCSR, val); 2006 2007 for (ntries = 0; ntries < 100; ntries++) { 2008 val = RAL_READ(sc, RT2560_BBPCSR); 2009 if (!(val & RT2560_BBP_BUSY)) 2010 return val & 0xff; 2011 DELAY(1); 2012 } 2013 2014 device_printf(sc->sc_dev, "could not read from BBP\n"); 2015 return 0; 2016} 2017 2018static void 2019rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val) 2020{ 2021 uint32_t tmp; 2022 int ntries; 2023 2024 for (ntries = 0; ntries < 100; ntries++) { 2025 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY)) 2026 break; 2027 DELAY(1); 2028 } 2029 if (ntries == 100) { 2030 device_printf(sc->sc_dev, "could not write to RF\n"); 2031 return; 2032 } 2033 2034 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 | 2035 (reg & 0x3); 2036 RAL_WRITE(sc, RT2560_RFCSR, tmp); 2037 2038 /* remember last written value in sc */ 2039 sc->rf_regs[reg] = val; 2040 2041 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff); 2042} 2043 2044static void 2045rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c) 2046{ 2047 struct ieee80211com *ic = &sc->sc_ic; 2048 uint8_t power, tmp; 2049 u_int i, chan; 2050 2051 chan = ieee80211_chan2ieee(ic, c); 2052 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan)); 2053 2054 if (IEEE80211_IS_CHAN_2GHZ(c)) 2055 power = min(sc->txpow[chan - 1], 31); 2056 else 2057 power = 31; 2058 2059 /* adjust txpower using ifconfig settings */ 2060 power -= (100 - ic->ic_txpowlimit) / 8; 2061 2062 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power); 2063 2064 switch (sc->rf_rev) { 2065 case RT2560_RF_2522: 2066 rt2560_rf_write(sc, RAL_RF1, 0x00814); 2067 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]); 2068 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040); 2069 break; 2070 2071 case RT2560_RF_2523: 2072 rt2560_rf_write(sc, RAL_RF1, 0x08804); 2073 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]); 2074 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044); 2075 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); 2076 break; 2077 2078 case RT2560_RF_2524: 2079 rt2560_rf_write(sc, RAL_RF1, 0x0c808); 2080 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]); 2081 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040); 2082 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); 2083 break; 2084 2085 case RT2560_RF_2525: 2086 rt2560_rf_write(sc, RAL_RF1, 0x08808); 2087 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]); 2088 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044); 2089 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); 2090 2091 rt2560_rf_write(sc, RAL_RF1, 0x08808); 2092 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]); 2093 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044); 2094 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); 2095 break; 2096 2097 case RT2560_RF_2525E: 2098 rt2560_rf_write(sc, RAL_RF1, 0x08808); 2099 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]); 2100 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044); 2101 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282); 2102 break; 2103 2104 case RT2560_RF_2526: 2105 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]); 2106 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381); 2107 rt2560_rf_write(sc, RAL_RF1, 0x08804); 2108 2109 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]); 2110 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044); 2111 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381); 2112 break; 2113 2114 /* dual-band RF */ 2115 case RT2560_RF_5222: 2116 for (i = 0; rt2560_rf5222[i].chan != chan; i++); 2117 2118 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1); 2119 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2); 2120 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040); 2121 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4); 2122 break; 2123 default: 2124 printf("unknown ral rev=%d\n", sc->rf_rev); 2125 } 2126 2127 /* XXX */ 2128 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) { 2129 /* set Japan filter bit for channel 14 */ 2130 tmp = rt2560_bbp_read(sc, 70); 2131 2132 tmp &= ~RT2560_JAPAN_FILTER; 2133 if (chan == 14) 2134 tmp |= RT2560_JAPAN_FILTER; 2135 2136 rt2560_bbp_write(sc, 70, tmp); 2137 2138 /* clear CRC errors */ 2139 RAL_READ(sc, RT2560_CNT0); 2140 } 2141} 2142 2143static void 2144rt2560_set_channel(struct ieee80211com *ic) 2145{ 2146 struct rt2560_softc *sc = ic->ic_softc; 2147 2148 RAL_LOCK(sc); 2149 rt2560_set_chan(sc, ic->ic_curchan); 2150 RAL_UNLOCK(sc); 2151 2152} 2153 2154#if 0 2155/* 2156 * Disable RF auto-tuning. 2157 */ 2158static void 2159rt2560_disable_rf_tune(struct rt2560_softc *sc) 2160{ 2161 uint32_t tmp; 2162 2163 if (sc->rf_rev != RT2560_RF_2523) { 2164 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE; 2165 rt2560_rf_write(sc, RAL_RF1, tmp); 2166 } 2167 2168 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE; 2169 rt2560_rf_write(sc, RAL_RF3, tmp); 2170 2171 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n"); 2172} 2173#endif 2174 2175/* 2176 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF 2177 * synchronization. 2178 */ 2179static void 2180rt2560_enable_tsf_sync(struct rt2560_softc *sc) 2181{ 2182 struct ieee80211com *ic = &sc->sc_ic; 2183 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2184 uint16_t logcwmin, preload; 2185 uint32_t tmp; 2186 2187 /* first, disable TSF synchronization */ 2188 RAL_WRITE(sc, RT2560_CSR14, 0); 2189 2190 tmp = 16 * vap->iv_bss->ni_intval; 2191 RAL_WRITE(sc, RT2560_CSR12, tmp); 2192 2193 RAL_WRITE(sc, RT2560_CSR13, 0); 2194 2195 logcwmin = 5; 2196 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024; 2197 tmp = logcwmin << 16 | preload; 2198 RAL_WRITE(sc, RT2560_BCNOCSR, tmp); 2199 2200 /* finally, enable TSF synchronization */ 2201 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN; 2202 if (ic->ic_opmode == IEEE80211_M_STA) 2203 tmp |= RT2560_ENABLE_TSF_SYNC(1); 2204 else 2205 tmp |= RT2560_ENABLE_TSF_SYNC(2) | 2206 RT2560_ENABLE_BEACON_GENERATOR; 2207 RAL_WRITE(sc, RT2560_CSR14, tmp); 2208 2209 DPRINTF(sc, "%s", "enabling TSF synchronization\n"); 2210} 2211 2212static void 2213rt2560_enable_tsf(struct rt2560_softc *sc) 2214{ 2215 RAL_WRITE(sc, RT2560_CSR14, 0); 2216 RAL_WRITE(sc, RT2560_CSR14, 2217 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF); 2218} 2219 2220static void 2221rt2560_update_plcp(struct rt2560_softc *sc) 2222{ 2223 struct ieee80211com *ic = &sc->sc_ic; 2224 2225 /* no short preamble for 1Mbps */ 2226 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400); 2227 2228 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) { 2229 /* values taken from the reference driver */ 2230 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401); 2231 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402); 2232 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403); 2233 } else { 2234 /* same values as above or'ed 0x8 */ 2235 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409); 2236 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a); 2237 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b); 2238 } 2239 2240 DPRINTF(sc, "updating PLCP for %s preamble\n", 2241 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long"); 2242} 2243 2244/* 2245 * This function can be called by ieee80211_set_shortslottime(). Refer to 2246 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed. 2247 */ 2248static void 2249rt2560_update_slot(struct ieee80211com *ic) 2250{ 2251 struct rt2560_softc *sc = ic->ic_softc; 2252 uint8_t slottime; 2253 uint16_t tx_sifs, tx_pifs, tx_difs, eifs; 2254 uint32_t tmp; 2255 2256#ifndef FORCE_SLOTTIME 2257 slottime = IEEE80211_GET_SLOTTIME(ic); 2258#else 2259 /* 2260 * Setting slot time according to "short slot time" capability 2261 * in beacon/probe_resp seems to cause problem to acknowledge 2262 * certain AP's data frames transimitted at CCK/DS rates: the 2263 * problematic AP keeps retransmitting data frames, probably 2264 * because MAC level acks are not received by hardware. 2265 * So we cheat a little bit here by claiming we are capable of 2266 * "short slot time" but setting hardware slot time to the normal 2267 * slot time. ral(4) does not seem to have trouble to receive 2268 * frames transmitted using short slot time even if hardware 2269 * slot time is set to normal slot time. If we didn't use this 2270 * trick, we would have to claim that short slot time is not 2271 * supported; this would give relative poor RX performance 2272 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short 2273 * slot time. 2274 */ 2275 slottime = IEEE80211_DUR_SLOT; 2276#endif 2277 2278 /* update the MAC slot boundaries */ 2279 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND; 2280 tx_pifs = tx_sifs + slottime; 2281 tx_difs = IEEE80211_DUR_DIFS(tx_sifs, slottime); 2282 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60; 2283 2284 tmp = RAL_READ(sc, RT2560_CSR11); 2285 tmp = (tmp & ~0x1f00) | slottime << 8; 2286 RAL_WRITE(sc, RT2560_CSR11, tmp); 2287 2288 tmp = tx_pifs << 16 | tx_sifs; 2289 RAL_WRITE(sc, RT2560_CSR18, tmp); 2290 2291 tmp = eifs << 16 | tx_difs; 2292 RAL_WRITE(sc, RT2560_CSR19, tmp); 2293 2294 DPRINTF(sc, "setting slottime to %uus\n", slottime); 2295} 2296 2297static void 2298rt2560_set_basicrates(struct rt2560_softc *sc, 2299 const struct ieee80211_rateset *rs) 2300{ 2301 struct ieee80211com *ic = &sc->sc_ic; 2302 uint32_t mask = 0; 2303 uint8_t rate; 2304 int i; 2305 2306 for (i = 0; i < rs->rs_nrates; i++) { 2307 rate = rs->rs_rates[i]; 2308 2309 if (!(rate & IEEE80211_RATE_BASIC)) 2310 continue; 2311 2312 mask |= 1 << ieee80211_legacy_rate_lookup(ic->ic_rt, 2313 IEEE80211_RV(rate)); 2314 } 2315 2316 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, mask); 2317 2318 DPRINTF(sc, "Setting basic rate mask to 0x%x\n", mask); 2319} 2320 2321static void 2322rt2560_update_led(struct rt2560_softc *sc, int led1, int led2) 2323{ 2324 uint32_t tmp; 2325 2326 /* set ON period to 70ms and OFF period to 30ms */ 2327 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30; 2328 RAL_WRITE(sc, RT2560_LEDCSR, tmp); 2329} 2330 2331static void 2332rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid) 2333{ 2334 uint32_t tmp; 2335 2336 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 2337 RAL_WRITE(sc, RT2560_CSR5, tmp); 2338 2339 tmp = bssid[4] | bssid[5] << 8; 2340 RAL_WRITE(sc, RT2560_CSR6, tmp); 2341 2342 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":"); 2343} 2344 2345static void 2346rt2560_set_macaddr(struct rt2560_softc *sc, const uint8_t *addr) 2347{ 2348 uint32_t tmp; 2349 2350 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 2351 RAL_WRITE(sc, RT2560_CSR3, tmp); 2352 2353 tmp = addr[4] | addr[5] << 8; 2354 RAL_WRITE(sc, RT2560_CSR4, tmp); 2355 2356 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":"); 2357} 2358 2359static void 2360rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr) 2361{ 2362 uint32_t tmp; 2363 2364 tmp = RAL_READ(sc, RT2560_CSR3); 2365 addr[0] = tmp & 0xff; 2366 addr[1] = (tmp >> 8) & 0xff; 2367 addr[2] = (tmp >> 16) & 0xff; 2368 addr[3] = (tmp >> 24); 2369 2370 tmp = RAL_READ(sc, RT2560_CSR4); 2371 addr[4] = tmp & 0xff; 2372 addr[5] = (tmp >> 8) & 0xff; 2373} 2374 2375static void 2376rt2560_update_promisc(struct ieee80211com *ic) 2377{ 2378 struct rt2560_softc *sc = ic->ic_softc; 2379 uint32_t tmp; 2380 2381 tmp = RAL_READ(sc, RT2560_RXCSR0); 2382 2383 tmp &= ~RT2560_DROP_NOT_TO_ME; 2384 if (ic->ic_promisc == 0) 2385 tmp |= RT2560_DROP_NOT_TO_ME; 2386 2387 RAL_WRITE(sc, RT2560_RXCSR0, tmp); 2388 2389 DPRINTF(sc, "%s promiscuous mode\n", 2390 (ic->ic_promisc > 0) ? "entering" : "leaving"); 2391} 2392 2393static const char * 2394rt2560_get_rf(int rev) 2395{ 2396 switch (rev) { 2397 case RT2560_RF_2522: return "RT2522"; 2398 case RT2560_RF_2523: return "RT2523"; 2399 case RT2560_RF_2524: return "RT2524"; 2400 case RT2560_RF_2525: return "RT2525"; 2401 case RT2560_RF_2525E: return "RT2525e"; 2402 case RT2560_RF_2526: return "RT2526"; 2403 case RT2560_RF_5222: return "RT5222"; 2404 default: return "unknown"; 2405 } 2406} 2407 2408static void 2409rt2560_read_config(struct rt2560_softc *sc) 2410{ 2411 uint16_t val; 2412 int i; 2413 2414 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0); 2415 sc->rf_rev = (val >> 11) & 0x7; 2416 sc->hw_radio = (val >> 10) & 0x1; 2417 sc->led_mode = (val >> 6) & 0x7; 2418 sc->rx_ant = (val >> 4) & 0x3; 2419 sc->tx_ant = (val >> 2) & 0x3; 2420 sc->nb_ant = val & 0x3; 2421 2422 /* read default values for BBP registers */ 2423 for (i = 0; i < 16; i++) { 2424 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i); 2425 if (val == 0 || val == 0xffff) 2426 continue; 2427 2428 sc->bbp_prom[i].reg = val >> 8; 2429 sc->bbp_prom[i].val = val & 0xff; 2430 } 2431 2432 /* read Tx power for all b/g channels */ 2433 for (i = 0; i < 14 / 2; i++) { 2434 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i); 2435 sc->txpow[i * 2] = val & 0xff; 2436 sc->txpow[i * 2 + 1] = val >> 8; 2437 } 2438 for (i = 0; i < 14; ++i) { 2439 if (sc->txpow[i] > 31) 2440 sc->txpow[i] = 24; 2441 } 2442 2443 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE); 2444 if ((val & 0xff) == 0xff) 2445 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR; 2446 else 2447 sc->rssi_corr = val & 0xff; 2448 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n", 2449 sc->rssi_corr, val); 2450} 2451 2452 2453static void 2454rt2560_scan_start(struct ieee80211com *ic) 2455{ 2456 struct rt2560_softc *sc = ic->ic_softc; 2457 2458 /* abort TSF synchronization */ 2459 RAL_WRITE(sc, RT2560_CSR14, 0); 2460 rt2560_set_bssid(sc, ieee80211broadcastaddr); 2461} 2462 2463static void 2464rt2560_scan_end(struct ieee80211com *ic) 2465{ 2466 struct rt2560_softc *sc = ic->ic_softc; 2467 struct ieee80211vap *vap = ic->ic_scan->ss_vap; 2468 2469 rt2560_enable_tsf_sync(sc); 2470 /* XXX keep local copy */ 2471 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid); 2472} 2473 2474static int 2475rt2560_bbp_init(struct rt2560_softc *sc) 2476{ 2477 int i, ntries; 2478 2479 /* wait for BBP to be ready */ 2480 for (ntries = 0; ntries < 100; ntries++) { 2481 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0) 2482 break; 2483 DELAY(1); 2484 } 2485 if (ntries == 100) { 2486 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2487 return EIO; 2488 } 2489 2490 /* initialize BBP registers to default values */ 2491 for (i = 0; i < nitems(rt2560_def_bbp); i++) { 2492 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg, 2493 rt2560_def_bbp[i].val); 2494 } 2495 2496 /* initialize BBP registers to values stored in EEPROM */ 2497 for (i = 0; i < 16; i++) { 2498 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0) 2499 break; 2500 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2501 } 2502 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */ 2503 2504 return 0; 2505} 2506 2507static void 2508rt2560_set_txantenna(struct rt2560_softc *sc, int antenna) 2509{ 2510 uint32_t tmp; 2511 uint8_t tx; 2512 2513 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK; 2514 if (antenna == 1) 2515 tx |= RT2560_BBP_ANTA; 2516 else if (antenna == 2) 2517 tx |= RT2560_BBP_ANTB; 2518 else 2519 tx |= RT2560_BBP_DIVERSITY; 2520 2521 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */ 2522 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 || 2523 sc->rf_rev == RT2560_RF_5222) 2524 tx |= RT2560_BBP_FLIPIQ; 2525 2526 rt2560_bbp_write(sc, RT2560_BBP_TX, tx); 2527 2528 /* update values for CCK and OFDM in BBPCSR1 */ 2529 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007; 2530 tmp |= (tx & 0x7) << 16 | (tx & 0x7); 2531 RAL_WRITE(sc, RT2560_BBPCSR1, tmp); 2532} 2533 2534static void 2535rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna) 2536{ 2537 uint8_t rx; 2538 2539 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK; 2540 if (antenna == 1) 2541 rx |= RT2560_BBP_ANTA; 2542 else if (antenna == 2) 2543 rx |= RT2560_BBP_ANTB; 2544 else 2545 rx |= RT2560_BBP_DIVERSITY; 2546 2547 /* need to force no I/Q flip for RF 2525e and 2526 */ 2548 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526) 2549 rx &= ~RT2560_BBP_FLIPIQ; 2550 2551 rt2560_bbp_write(sc, RT2560_BBP_RX, rx); 2552} 2553 2554static void 2555rt2560_init_locked(struct rt2560_softc *sc) 2556{ 2557 struct ieee80211com *ic = &sc->sc_ic; 2558 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2559 uint32_t tmp; 2560 int i; 2561 2562 RAL_LOCK_ASSERT(sc); 2563 2564 rt2560_stop_locked(sc); 2565 2566 /* setup tx rings */ 2567 tmp = RT2560_PRIO_RING_COUNT << 24 | 2568 RT2560_ATIM_RING_COUNT << 16 | 2569 RT2560_TX_RING_COUNT << 8 | 2570 RT2560_TX_DESC_SIZE; 2571 2572 /* rings must be initialized in this exact order */ 2573 RAL_WRITE(sc, RT2560_TXCSR2, tmp); 2574 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr); 2575 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr); 2576 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr); 2577 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr); 2578 2579 /* setup rx ring */ 2580 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE; 2581 2582 RAL_WRITE(sc, RT2560_RXCSR1, tmp); 2583 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr); 2584 2585 /* initialize MAC registers to default values */ 2586 for (i = 0; i < nitems(rt2560_def_mac); i++) 2587 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val); 2588 2589 rt2560_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2590 2591 /* set basic rate set (will be updated later) */ 2592 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153); 2593 2594 rt2560_update_slot(ic); 2595 rt2560_update_plcp(sc); 2596 rt2560_update_led(sc, 0, 0); 2597 2598 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC); 2599 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY); 2600 2601 if (rt2560_bbp_init(sc) != 0) { 2602 rt2560_stop_locked(sc); 2603 return; 2604 } 2605 2606 rt2560_set_txantenna(sc, sc->tx_ant); 2607 rt2560_set_rxantenna(sc, sc->rx_ant); 2608 2609 /* set default BSS channel */ 2610 rt2560_set_chan(sc, ic->ic_curchan); 2611 2612 /* kick Rx */ 2613 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR; 2614 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2615 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR; 2616 if (ic->ic_opmode != IEEE80211_M_HOSTAP && 2617 ic->ic_opmode != IEEE80211_M_MBSS) 2618 tmp |= RT2560_DROP_TODS; 2619 if (ic->ic_promisc == 0) 2620 tmp |= RT2560_DROP_NOT_TO_ME; 2621 } 2622 RAL_WRITE(sc, RT2560_RXCSR0, tmp); 2623 2624 /* clear old FCS and Rx FIFO errors */ 2625 RAL_READ(sc, RT2560_CNT0); 2626 RAL_READ(sc, RT2560_CNT4); 2627 2628 /* clear any pending interrupts */ 2629 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff); 2630 2631 /* enable interrupts */ 2632 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK); 2633 2634 sc->sc_flags |= RT2560_F_RUNNING; 2635 2636 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc); 2637} 2638 2639static void 2640rt2560_init(void *priv) 2641{ 2642 struct rt2560_softc *sc = priv; 2643 struct ieee80211com *ic = &sc->sc_ic; 2644 2645 RAL_LOCK(sc); 2646 rt2560_init_locked(sc); 2647 RAL_UNLOCK(sc); 2648 2649 if (sc->sc_flags & RT2560_F_RUNNING) 2650 ieee80211_start_all(ic); /* start all vap's */ 2651} 2652 2653static void 2654rt2560_stop_locked(struct rt2560_softc *sc) 2655{ 2656 volatile int *flags = &sc->sc_flags; 2657 2658 RAL_LOCK_ASSERT(sc); 2659 2660 while (*flags & RT2560_F_INPUT_RUNNING) 2661 msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10); 2662 2663 callout_stop(&sc->watchdog_ch); 2664 sc->sc_tx_timer = 0; 2665 2666 if (sc->sc_flags & RT2560_F_RUNNING) { 2667 sc->sc_flags &= ~RT2560_F_RUNNING; 2668 2669 /* abort Tx */ 2670 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX); 2671 2672 /* disable Rx */ 2673 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX); 2674 2675 /* reset ASIC (imply reset BBP) */ 2676 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC); 2677 RAL_WRITE(sc, RT2560_CSR1, 0); 2678 2679 /* disable interrupts */ 2680 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff); 2681 2682 /* reset Tx and Rx rings */ 2683 rt2560_reset_tx_ring(sc, &sc->txq); 2684 rt2560_reset_tx_ring(sc, &sc->atimq); 2685 rt2560_reset_tx_ring(sc, &sc->prioq); 2686 rt2560_reset_tx_ring(sc, &sc->bcnq); 2687 rt2560_reset_rx_ring(sc, &sc->rxq); 2688 } 2689} 2690 2691void 2692rt2560_stop(void *arg) 2693{ 2694 struct rt2560_softc *sc = arg; 2695 2696 RAL_LOCK(sc); 2697 rt2560_stop_locked(sc); 2698 RAL_UNLOCK(sc); 2699} 2700 2701static int 2702rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2703 const struct ieee80211_bpf_params *params) 2704{ 2705 struct ieee80211com *ic = ni->ni_ic; 2706 struct rt2560_softc *sc = ic->ic_softc; 2707 2708 RAL_LOCK(sc); 2709 2710 /* prevent management frames from being sent if we're not ready */ 2711 if (!(sc->sc_flags & RT2560_F_RUNNING)) { 2712 RAL_UNLOCK(sc); 2713 m_freem(m); 2714 return ENETDOWN; 2715 } 2716 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) { 2717 RAL_UNLOCK(sc); 2718 m_freem(m); 2719 return ENOBUFS; /* XXX */ 2720 } 2721 2722 if (params == NULL) { 2723 /* 2724 * Legacy path; interpret frame contents to decide 2725 * precisely how to send the frame. 2726 */ 2727 if (rt2560_tx_mgt(sc, m, ni) != 0) 2728 goto bad; 2729 } else { 2730 /* 2731 * Caller supplied explicit parameters to use in 2732 * sending the frame. 2733 */ 2734 if (rt2560_tx_raw(sc, m, ni, params)) 2735 goto bad; 2736 } 2737 sc->sc_tx_timer = 5; 2738 2739 RAL_UNLOCK(sc); 2740 2741 return 0; 2742bad: 2743 RAL_UNLOCK(sc); 2744 return EIO; /* XXX */ 2745} 2746