2715 lines
69 KiB
C
2715 lines
69 KiB
C
/* $OpenBSD: rt2560.c,v 1.90 2022/04/21 21:03:02 stsp Exp $ */
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/*-
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* Copyright (c) 2005, 2006
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*-
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* Ralink Technology RT2560 chipset driver
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* http://www.ralinktech.com/
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*/
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/timeout.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/endian.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#endif
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_amrr.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/ic/rt2560reg.h>
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#include <dev/ic/rt2560var.h>
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#ifdef RAL_DEBUG
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#define DPRINTF(x) do { if (rt2560_debug > 0) printf x; } while (0)
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#define DPRINTFN(n, x) do { if (rt2560_debug >= (n)) printf x; } while (0)
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int rt2560_debug = 1;
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n, x)
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#endif
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int rt2560_alloc_tx_ring(struct rt2560_softc *,
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struct rt2560_tx_ring *, int);
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void rt2560_reset_tx_ring(struct rt2560_softc *,
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struct rt2560_tx_ring *);
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void rt2560_free_tx_ring(struct rt2560_softc *,
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struct rt2560_tx_ring *);
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int rt2560_alloc_rx_ring(struct rt2560_softc *,
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struct rt2560_rx_ring *, int);
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void rt2560_reset_rx_ring(struct rt2560_softc *,
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struct rt2560_rx_ring *);
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void rt2560_free_rx_ring(struct rt2560_softc *,
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struct rt2560_rx_ring *);
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struct ieee80211_node *rt2560_node_alloc(struct ieee80211com *);
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int rt2560_media_change(struct ifnet *);
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void rt2560_next_scan(void *);
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void rt2560_iter_func(void *, struct ieee80211_node *);
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void rt2560_amrr_timeout(void *);
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void rt2560_newassoc(struct ieee80211com *, struct ieee80211_node *,
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int);
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int rt2560_newstate(struct ieee80211com *, enum ieee80211_state,
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int);
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uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
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void rt2560_encryption_intr(struct rt2560_softc *);
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void rt2560_tx_intr(struct rt2560_softc *);
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void rt2560_prio_intr(struct rt2560_softc *);
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void rt2560_decryption_intr(struct rt2560_softc *);
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void rt2560_rx_intr(struct rt2560_softc *);
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#ifndef IEEE80211_STA_ONLY
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void rt2560_beacon_expire(struct rt2560_softc *);
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#endif
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void rt2560_wakeup_expire(struct rt2560_softc *);
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#if NBPFILTER > 0
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uint8_t rt2560_rxrate(const struct rt2560_rx_desc *);
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#endif
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int rt2560_ack_rate(struct ieee80211com *, int);
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uint16_t rt2560_txtime(int, int, uint32_t);
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uint8_t rt2560_plcp_signal(int);
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void rt2560_setup_tx_desc(struct rt2560_softc *,
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struct rt2560_tx_desc *, uint32_t, int, int, int,
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bus_addr_t);
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#ifndef IEEE80211_STA_ONLY
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int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
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struct ieee80211_node *);
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#endif
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int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
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struct ieee80211_node *);
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int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
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struct ieee80211_node *);
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void rt2560_start(struct ifnet *);
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void rt2560_watchdog(struct ifnet *);
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int rt2560_ioctl(struct ifnet *, u_long, caddr_t);
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void rt2560_bbp_write(struct rt2560_softc *, uint8_t, uint8_t);
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uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
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void rt2560_rf_write(struct rt2560_softc *, uint8_t, uint32_t);
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void rt2560_set_chan(struct rt2560_softc *,
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struct ieee80211_channel *);
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void rt2560_disable_rf_tune(struct rt2560_softc *);
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void rt2560_enable_tsf_sync(struct rt2560_softc *);
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void rt2560_update_plcp(struct rt2560_softc *);
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void rt2560_updateslot(struct ieee80211com *);
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void rt2560_set_slottime(struct rt2560_softc *);
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void rt2560_set_basicrates(struct rt2560_softc *);
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void rt2560_update_led(struct rt2560_softc *, int, int);
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void rt2560_set_bssid(struct rt2560_softc *, uint8_t *);
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void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
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void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
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void rt2560_update_promisc(struct rt2560_softc *);
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void rt2560_set_txantenna(struct rt2560_softc *, int);
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void rt2560_set_rxantenna(struct rt2560_softc *, int);
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const char *rt2560_get_rf(int);
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void rt2560_read_eeprom(struct rt2560_softc *);
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int rt2560_bbp_init(struct rt2560_softc *);
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int rt2560_init(struct ifnet *);
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void rt2560_stop(struct ifnet *, int);
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static const struct {
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uint32_t reg;
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uint32_t val;
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} rt2560_def_mac[] = {
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RT2560_DEF_MAC
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};
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static const struct {
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uint8_t reg;
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uint8_t val;
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} rt2560_def_bbp[] = {
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RT2560_DEF_BBP
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};
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static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
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static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
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static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
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static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
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static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
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static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
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static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
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static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
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int
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rt2560_attach(void *xsc, int id)
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{
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struct rt2560_softc *sc = xsc;
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struct ieee80211com *ic = &sc->sc_ic;
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struct ifnet *ifp = &ic->ic_if;
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int error, i;
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sc->amrr.amrr_min_success_threshold = 1;
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sc->amrr.amrr_max_success_threshold = 15;
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timeout_set(&sc->amrr_to, rt2560_amrr_timeout, sc);
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timeout_set(&sc->scan_to, rt2560_next_scan, sc);
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/* retrieve RT2560 rev. no */
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sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
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/* retrieve MAC address */
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rt2560_get_macaddr(sc, ic->ic_myaddr);
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printf(", address %s\n", ether_sprintf(ic->ic_myaddr));
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/* retrieve RF rev. no and various other things from EEPROM */
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rt2560_read_eeprom(sc);
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printf("%s: MAC/BBP RT2560 (rev 0x%02x), RF %s\n", sc->sc_dev.dv_xname,
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sc->asic_rev, rt2560_get_rf(sc->rf_rev));
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/*
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* Allocate Tx and Rx rings.
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*/
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error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
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if (error != 0) {
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printf("%s: could not allocate Tx ring\n",
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sc->sc_dev.dv_xname);
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goto fail1;
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}
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error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
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if (error != 0) {
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printf("%s: could not allocate ATIM ring\n",
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sc->sc_dev.dv_xname);
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goto fail2;
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}
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error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
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if (error != 0) {
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printf("%s: could not allocate Prio ring\n",
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sc->sc_dev.dv_xname);
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goto fail3;
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}
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error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
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if (error != 0) {
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printf("%s: could not allocate Beacon ring\n",
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sc->sc_dev.dv_xname);
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goto fail4;
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}
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error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
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if (error != 0) {
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printf("%s: could not allocate Rx ring\n",
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sc->sc_dev.dv_xname);
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goto fail5;
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}
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ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
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ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
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ic->ic_state = IEEE80211_S_INIT;
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/* set device capabilities */
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ic->ic_caps =
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IEEE80211_C_MONITOR | /* monitor mode supported */
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#ifndef IEEE80211_STA_ONLY
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IEEE80211_C_IBSS | /* IBSS mode supported */
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IEEE80211_C_HOSTAP | /* HostAp mode supported */
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#endif
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IEEE80211_C_TXPMGT | /* tx power management */
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IEEE80211_C_SHPREAMBLE | /* short preamble supported */
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IEEE80211_C_SHSLOT | /* short slot time supported */
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IEEE80211_C_WEP | /* s/w WEP */
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IEEE80211_C_RSN; /* WPA/RSN */
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/* set supported .11b and .11g rates */
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ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b;
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ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g;
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/* set supported .11b and .11g channels (1 through 14) */
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for (i = 1; i <= 14; i++) {
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ic->ic_channels[i].ic_freq =
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ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
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ic->ic_channels[i].ic_flags =
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IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
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IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
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}
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ifp->if_softc = sc;
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
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ifp->if_ioctl = rt2560_ioctl;
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ifp->if_start = rt2560_start;
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ifp->if_watchdog = rt2560_watchdog;
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memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
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if_attach(ifp);
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ieee80211_ifattach(ifp);
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ic->ic_node_alloc = rt2560_node_alloc;
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ic->ic_newassoc = rt2560_newassoc;
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ic->ic_updateslot = rt2560_updateslot;
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/* XXX RTS causes throughput problems -- where is the bug? */
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ic->ic_rtsthreshold = IEEE80211_RTS_MAX;
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/* override state transition machine */
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sc->sc_newstate = ic->ic_newstate;
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ic->ic_newstate = rt2560_newstate;
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ieee80211_media_init(ifp, rt2560_media_change, ieee80211_media_status);
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#if NBPFILTER > 0
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bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO,
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sizeof (struct ieee80211_frame) + 64);
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sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
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sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
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sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2560_RX_RADIOTAP_PRESENT);
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sc->sc_txtap_len = sizeof sc->sc_txtapu;
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sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
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sc->sc_txtap.wt_ihdr.it_present = htole32(RT2560_TX_RADIOTAP_PRESENT);
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#endif
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return 0;
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fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
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fail4: rt2560_free_tx_ring(sc, &sc->prioq);
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fail3: rt2560_free_tx_ring(sc, &sc->atimq);
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fail2: rt2560_free_tx_ring(sc, &sc->txq);
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fail1: return ENXIO;
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}
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int
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rt2560_detach(void *xsc)
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{
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struct rt2560_softc *sc = xsc;
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struct ifnet *ifp = &sc->sc_ic.ic_if;
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timeout_del(&sc->scan_to);
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timeout_del(&sc->amrr_to);
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ieee80211_ifdetach(ifp); /* free all nodes */
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if_detach(ifp);
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rt2560_free_tx_ring(sc, &sc->txq);
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rt2560_free_tx_ring(sc, &sc->atimq);
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rt2560_free_tx_ring(sc, &sc->prioq);
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rt2560_free_tx_ring(sc, &sc->bcnq);
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rt2560_free_rx_ring(sc, &sc->rxq);
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return 0;
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}
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void
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rt2560_suspend(void *xsc)
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{
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struct rt2560_softc *sc = xsc;
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struct ifnet *ifp = &sc->sc_ic.ic_if;
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if (ifp->if_flags & IFF_RUNNING)
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rt2560_stop(ifp, 1);
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}
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void
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rt2560_wakeup(void *xsc)
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{
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struct rt2560_softc *sc = xsc;
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struct ifnet *ifp = &sc->sc_ic.ic_if;
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if (ifp->if_flags & IFF_UP)
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rt2560_init(ifp);
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}
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int
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rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
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int count)
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{
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int i, nsegs, error;
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ring->count = count;
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ring->queued = 0;
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ring->cur = ring->next = 0;
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ring->cur_encrypt = ring->next_encrypt = 0;
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error = bus_dmamap_create(sc->sc_dmat, count * RT2560_TX_DESC_SIZE, 1,
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count * RT2560_TX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map);
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if (error != 0) {
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printf("%s: could not create desc DMA map\n",
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sc->sc_dev.dv_xname);
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goto fail;
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}
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error = bus_dmamem_alloc(sc->sc_dmat, count * RT2560_TX_DESC_SIZE,
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PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT | BUS_DMA_ZERO);
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if (error != 0) {
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printf("%s: could not allocate DMA memory\n",
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sc->sc_dev.dv_xname);
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goto fail;
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}
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error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs,
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count * RT2560_TX_DESC_SIZE, (caddr_t *)&ring->desc,
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BUS_DMA_NOWAIT);
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if (error != 0) {
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printf("%s: can't map desc DMA memory\n",
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sc->sc_dev.dv_xname);
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goto fail;
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}
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error = bus_dmamap_load(sc->sc_dmat, ring->map, ring->desc,
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count * RT2560_TX_DESC_SIZE, NULL, BUS_DMA_NOWAIT);
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if (error != 0) {
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printf("%s: could not load desc DMA map\n",
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sc->sc_dev.dv_xname);
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goto fail;
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}
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ring->physaddr = ring->map->dm_segs->ds_addr;
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ring->data = mallocarray(count, sizeof (struct rt2560_tx_data),
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M_DEVBUF, M_NOWAIT | M_ZERO);
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if (ring->data == NULL) {
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printf("%s: could not allocate soft data\n",
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sc->sc_dev.dv_xname);
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error = ENOMEM;
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goto fail;
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}
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for (i = 0; i < count; i++) {
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error = bus_dmamap_create(sc->sc_dmat, MCLBYTES,
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RT2560_MAX_SCATTER, MCLBYTES, 0, BUS_DMA_NOWAIT,
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&ring->data[i].map);
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if (error != 0) {
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printf("%s: could not create DMA map\n",
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sc->sc_dev.dv_xname);
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goto fail;
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}
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}
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return 0;
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fail: rt2560_free_tx_ring(sc, ring);
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return error;
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}
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void
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rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
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{
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int i;
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for (i = 0; i < ring->count; i++) {
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struct rt2560_tx_desc *desc = &ring->desc[i];
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struct rt2560_tx_data *data = &ring->data[i];
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if (data->m != NULL) {
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bus_dmamap_sync(sc->sc_dmat, data->map, 0,
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data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
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bus_dmamap_unload(sc->sc_dmat, data->map);
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m_freem(data->m);
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data->m = NULL;
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}
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|
|
/*
|
|
* The node has already been freed at that point so don't call
|
|
* ieee80211_release_node() here.
|
|
*/
|
|
data->ni = NULL;
|
|
|
|
desc->flags = 0;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_encrypt = ring->next_encrypt = 0;
|
|
}
|
|
|
|
void
|
|
rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
|
|
{
|
|
int i;
|
|
|
|
if (ring->desc != NULL) {
|
|
bus_dmamap_sync(sc->sc_dmat, ring->map, 0,
|
|
ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->sc_dmat, ring->map);
|
|
bus_dmamem_unmap(sc->sc_dmat, (caddr_t)ring->desc,
|
|
ring->count * RT2560_TX_DESC_SIZE);
|
|
bus_dmamem_free(sc->sc_dmat, &ring->seg, 1);
|
|
}
|
|
|
|
if (ring->data != NULL) {
|
|
for (i = 0; i < ring->count; i++) {
|
|
struct rt2560_tx_data *data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->sc_dmat, data->map);
|
|
m_freem(data->m);
|
|
}
|
|
|
|
/*
|
|
* The node has already been freed at that point so
|
|
* don't call ieee80211_release_node() here.
|
|
*/
|
|
data->ni = NULL;
|
|
|
|
if (data->map != NULL)
|
|
bus_dmamap_destroy(sc->sc_dmat, data->map);
|
|
}
|
|
free(ring->data, M_DEVBUF, ring->count * sizeof *ring->data);
|
|
}
|
|
}
|
|
|
|
int
|
|
rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
|
|
int count)
|
|
{
|
|
int i, nsegs, error;
|
|
|
|
ring->count = count;
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_decrypt = 0;
|
|
|
|
error = bus_dmamap_create(sc->sc_dmat, count * RT2560_RX_DESC_SIZE, 1,
|
|
count * RT2560_RX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map);
|
|
if (error != 0) {
|
|
printf("%s: could not create desc DMA map\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(sc->sc_dmat, count * RT2560_RX_DESC_SIZE,
|
|
PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT | BUS_DMA_ZERO);
|
|
if (error != 0) {
|
|
printf("%s: could not allocate DMA memory\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs,
|
|
count * RT2560_RX_DESC_SIZE, (caddr_t *)&ring->desc,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: can't map desc DMA memory\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->sc_dmat, ring->map, ring->desc,
|
|
count * RT2560_RX_DESC_SIZE, NULL, BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: could not load desc DMA map\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto fail;
|
|
}
|
|
|
|
ring->physaddr = ring->map->dm_segs->ds_addr;
|
|
|
|
ring->data = mallocarray(count, sizeof (struct rt2560_rx_data),
|
|
M_DEVBUF, M_NOWAIT | M_ZERO);
|
|
if (ring->data == NULL) {
|
|
printf("%s: could not allocate soft data\n",
|
|
sc->sc_dev.dv_xname);
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Pre-allocate Rx buffers and populate Rx ring.
|
|
*/
|
|
for (i = 0; i < count; i++) {
|
|
struct rt2560_rx_desc *desc = &sc->rxq.desc[i];
|
|
struct rt2560_rx_data *data = &sc->rxq.data[i];
|
|
|
|
error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES,
|
|
0, BUS_DMA_NOWAIT, &data->map);
|
|
if (error != 0) {
|
|
printf("%s: could not create DMA map\n",
|
|
sc->sc_dev.dv_xname);
|
|
goto fail;
|
|
}
|
|
|
|
MGETHDR(data->m, M_DONTWAIT, MT_DATA);
|
|
if (data->m == NULL) {
|
|
printf("%s: could not allocate rx mbuf\n",
|
|
sc->sc_dev.dv_xname);
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
MCLGET(data->m, M_DONTWAIT);
|
|
if (!(data->m->m_flags & M_EXT)) {
|
|
printf("%s: could not allocate rx mbuf cluster\n",
|
|
sc->sc_dev.dv_xname);
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(sc->sc_dmat, data->map,
|
|
mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: could not load rx buf DMA map",
|
|
sc->sc_dev.dv_xname);
|
|
goto fail;
|
|
}
|
|
|
|
desc->flags = htole32(RT2560_RX_BUSY);
|
|
desc->physaddr = htole32(data->map->dm_segs->ds_addr);
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
return 0;
|
|
|
|
fail: rt2560_free_rx_ring(sc, ring);
|
|
return error;
|
|
}
|
|
|
|
void
|
|
rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ring->count; i++) {
|
|
ring->desc[i].flags = htole32(RT2560_RX_BUSY);
|
|
ring->data[i].drop = 0;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_decrypt = 0;
|
|
}
|
|
|
|
void
|
|
rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
|
|
{
|
|
int i;
|
|
|
|
if (ring->desc != NULL) {
|
|
bus_dmamap_sync(sc->sc_dmat, ring->map, 0,
|
|
ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->sc_dmat, ring->map);
|
|
bus_dmamem_unmap(sc->sc_dmat, (caddr_t)ring->desc,
|
|
ring->count * RT2560_RX_DESC_SIZE);
|
|
bus_dmamem_free(sc->sc_dmat, &ring->seg, 1);
|
|
}
|
|
|
|
if (ring->data != NULL) {
|
|
for (i = 0; i < ring->count; i++) {
|
|
struct rt2560_rx_data *data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->sc_dmat, data->map);
|
|
m_freem(data->m);
|
|
}
|
|
|
|
if (data->map != NULL)
|
|
bus_dmamap_destroy(sc->sc_dmat, data->map);
|
|
}
|
|
free(ring->data, M_DEVBUF, ring->count * sizeof *ring->data);
|
|
}
|
|
}
|
|
|
|
struct ieee80211_node *
|
|
rt2560_node_alloc(struct ieee80211com *ic)
|
|
{
|
|
return malloc(sizeof (struct rt2560_node), M_DEVBUF,
|
|
M_NOWAIT | M_ZERO);
|
|
}
|
|
|
|
int
|
|
rt2560_media_change(struct ifnet *ifp)
|
|
{
|
|
int error;
|
|
|
|
error = ieee80211_media_change(ifp);
|
|
if (error != ENETRESET)
|
|
return error;
|
|
|
|
if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
|
|
rt2560_init(ifp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function is called periodically (every 200ms) during scanning to
|
|
* switch from one channel to another.
|
|
*/
|
|
void
|
|
rt2560_next_scan(void *arg)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = &ic->ic_if;
|
|
int s;
|
|
|
|
s = splnet();
|
|
if (ic->ic_state == IEEE80211_S_SCAN)
|
|
ieee80211_next_scan(ifp);
|
|
splx(s);
|
|
}
|
|
|
|
/*
|
|
* This function is called for each neighbor node.
|
|
*/
|
|
void
|
|
rt2560_iter_func(void *arg, struct ieee80211_node *ni)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
struct rt2560_node *rn = (struct rt2560_node *)ni;
|
|
|
|
ieee80211_amrr_choose(&sc->amrr, ni, &rn->amn);
|
|
}
|
|
|
|
void
|
|
rt2560_amrr_timeout(void *arg)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
int s;
|
|
|
|
s = splnet();
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
rt2560_iter_func(sc, ic->ic_bss);
|
|
#ifndef IEEE80211_STA_ONLY
|
|
else
|
|
ieee80211_iterate_nodes(ic, rt2560_iter_func, sc);
|
|
#endif
|
|
splx(s);
|
|
|
|
timeout_add_msec(&sc->amrr_to, 500);
|
|
}
|
|
|
|
void
|
|
rt2560_newassoc(struct ieee80211com *ic, struct ieee80211_node *ni, int isnew)
|
|
{
|
|
struct rt2560_softc *sc = ic->ic_softc;
|
|
int i;
|
|
|
|
ieee80211_amrr_node_init(&sc->amrr, &((struct rt2560_node *)ni)->amn);
|
|
|
|
/* set rate to some reasonable initial value */
|
|
for (i = ni->ni_rates.rs_nrates - 1;
|
|
i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72;
|
|
i--);
|
|
ni->ni_txrate = i;
|
|
}
|
|
|
|
int
|
|
rt2560_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct rt2560_softc *sc = ic->ic_if.if_softc;
|
|
enum ieee80211_state ostate;
|
|
struct ieee80211_node *ni;
|
|
int error = 0;
|
|
|
|
ostate = ic->ic_state;
|
|
timeout_del(&sc->scan_to);
|
|
timeout_del(&sc->amrr_to);
|
|
|
|
switch (nstate) {
|
|
case IEEE80211_S_INIT:
|
|
if (ostate == IEEE80211_S_RUN) {
|
|
/* abort TSF synchronization */
|
|
RAL_WRITE(sc, RT2560_CSR14, 0);
|
|
|
|
/* turn association led off */
|
|
rt2560_update_led(sc, 0, 0);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_S_SCAN:
|
|
rt2560_set_chan(sc, ic->ic_bss->ni_chan);
|
|
timeout_add_msec(&sc->scan_to, 200);
|
|
break;
|
|
|
|
case IEEE80211_S_AUTH:
|
|
rt2560_set_chan(sc, ic->ic_bss->ni_chan);
|
|
break;
|
|
|
|
case IEEE80211_S_ASSOC:
|
|
rt2560_set_chan(sc, ic->ic_bss->ni_chan);
|
|
break;
|
|
|
|
case IEEE80211_S_RUN:
|
|
rt2560_set_chan(sc, ic->ic_bss->ni_chan);
|
|
|
|
ni = ic->ic_bss;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
rt2560_update_plcp(sc);
|
|
rt2560_set_slottime(sc);
|
|
rt2560_set_basicrates(sc);
|
|
rt2560_set_bssid(sc, ni->ni_bssid);
|
|
}
|
|
|
|
#ifndef IEEE80211_STA_ONLY
|
|
if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
|
|
ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
struct mbuf *m = ieee80211_beacon_alloc(ic, ni);
|
|
if (m == NULL) {
|
|
printf("%s: could not allocate beacon\n",
|
|
sc->sc_dev.dv_xname);
|
|
error = ENOBUFS;
|
|
break;
|
|
}
|
|
|
|
error = rt2560_tx_bcn(sc, m, ni);
|
|
if (error != 0)
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
/* turn association led on */
|
|
rt2560_update_led(sc, 1, 0);
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_STA) {
|
|
/* fake a join to init the tx rate */
|
|
rt2560_newassoc(ic, ni, 1);
|
|
}
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
/* start automatic rate control timer */
|
|
if (ic->ic_fixed_rate == -1)
|
|
timeout_add_msec(&sc->amrr_to, 500);
|
|
|
|
rt2560_enable_tsf_sync(sc);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (error != 0) ? error : sc->sc_newstate(ic, nstate, arg);
|
|
}
|
|
|
|
/*
|
|
* Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
|
|
* 93C66).
|
|
*/
|
|
uint16_t
|
|
rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
|
|
{
|
|
uint32_t tmp;
|
|
uint16_t val;
|
|
int n;
|
|
|
|
/* clock C once before the first command */
|
|
RT2560_EEPROM_CTL(sc, 0);
|
|
|
|
RT2560_EEPROM_CTL(sc, RT2560_S);
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
|
|
RT2560_EEPROM_CTL(sc, RT2560_S);
|
|
|
|
/* write start bit (1) */
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
|
|
|
|
/* write READ opcode (10) */
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
|
|
RT2560_EEPROM_CTL(sc, RT2560_S);
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
|
|
|
|
/* write address (A5-A0 or A7-A0) */
|
|
n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
|
|
for (; n >= 0; n--) {
|
|
RT2560_EEPROM_CTL(sc, RT2560_S |
|
|
(((addr >> n) & 1) << RT2560_SHIFT_D));
|
|
RT2560_EEPROM_CTL(sc, RT2560_S |
|
|
(((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
|
|
}
|
|
|
|
RT2560_EEPROM_CTL(sc, RT2560_S);
|
|
|
|
/* read data Q15-Q0 */
|
|
val = 0;
|
|
for (n = 15; n >= 0; n--) {
|
|
RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
|
|
tmp = RAL_READ(sc, RT2560_CSR21);
|
|
val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
|
|
RT2560_EEPROM_CTL(sc, RT2560_S);
|
|
}
|
|
|
|
RT2560_EEPROM_CTL(sc, 0);
|
|
|
|
/* clear Chip Select and clock C */
|
|
RT2560_EEPROM_CTL(sc, RT2560_S);
|
|
RT2560_EEPROM_CTL(sc, 0);
|
|
RT2560_EEPROM_CTL(sc, RT2560_C);
|
|
|
|
return val;
|
|
}
|
|
|
|
/*
|
|
* Some frames were processed by the hardware cipher engine and are ready for
|
|
* transmission.
|
|
*/
|
|
void
|
|
rt2560_encryption_intr(struct rt2560_softc *sc)
|
|
{
|
|
int hw;
|
|
|
|
/* retrieve last descriptor index processed by cipher engine */
|
|
hw = (RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr) /
|
|
RT2560_TX_DESC_SIZE;
|
|
|
|
for (; sc->txq.next_encrypt != hw;) {
|
|
struct rt2560_tx_desc *desc =
|
|
&sc->txq.desc[sc->txq.next_encrypt];
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
|
|
sc->txq.next_encrypt * RT2560_TX_DESC_SIZE,
|
|
RT2560_TX_DESC_SIZE, BUS_DMASYNC_POSTREAD);
|
|
|
|
if (letoh32(desc->flags) &
|
|
(RT2560_TX_BUSY | RT2560_TX_CIPHER_BUSY))
|
|
break;
|
|
|
|
/* for TKIP, swap eiv field to fix a bug in ASIC */
|
|
if ((letoh32(desc->flags) & RT2560_TX_CIPHER_MASK) ==
|
|
RT2560_TX_CIPHER_TKIP)
|
|
desc->eiv = swap32(desc->eiv);
|
|
|
|
/* mark the frame ready for transmission */
|
|
desc->flags |= htole32(RT2560_TX_BUSY | RT2560_TX_VALID);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
|
|
sc->txq.next_encrypt * RT2560_TX_DESC_SIZE,
|
|
RT2560_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(15, ("encryption done idx=%u\n",
|
|
sc->txq.next_encrypt));
|
|
|
|
sc->txq.next_encrypt =
|
|
(sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
|
|
}
|
|
|
|
/* kick Tx */
|
|
RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
|
|
}
|
|
|
|
void
|
|
rt2560_tx_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = &ic->ic_if;
|
|
|
|
for (;;) {
|
|
struct rt2560_tx_desc *desc = &sc->txq.desc[sc->txq.next];
|
|
struct rt2560_tx_data *data = &sc->txq.data[sc->txq.next];
|
|
struct rt2560_node *rn;
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
|
|
sc->txq.next * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
if ((letoh32(desc->flags) & RT2560_TX_BUSY) ||
|
|
(letoh32(desc->flags) & RT2560_TX_CIPHER_BUSY) ||
|
|
!(letoh32(desc->flags) & RT2560_TX_VALID))
|
|
break;
|
|
|
|
rn = (struct rt2560_node *)data->ni;
|
|
|
|
switch (letoh32(desc->flags) & RT2560_TX_RESULT_MASK) {
|
|
case RT2560_TX_SUCCESS:
|
|
DPRINTFN(10, ("data frame sent successfully\n"));
|
|
rn->amn.amn_txcnt++;
|
|
break;
|
|
|
|
case RT2560_TX_SUCCESS_RETRY:
|
|
DPRINTFN(9, ("data frame sent after %u retries\n",
|
|
(letoh32(desc->flags) >> 5) & 0x7));
|
|
rn->amn.amn_txcnt++;
|
|
rn->amn.amn_retrycnt++;
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_RETRY:
|
|
DPRINTFN(9, ("sending data frame failed (too much "
|
|
"retries)\n"));
|
|
rn->amn.amn_txcnt++;
|
|
rn->amn.amn_retrycnt++;
|
|
ifp->if_oerrors++;
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_INVALID:
|
|
case RT2560_TX_FAIL_OTHER:
|
|
default:
|
|
DPRINTF(("%s: sending data frame failed 0x%08x\n",
|
|
sc->sc_dev.dv_xname, letoh32(desc->flags)));
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
|
|
/* descriptor is no longer valid */
|
|
desc->flags &= ~htole32(RT2560_TX_VALID);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
|
|
sc->txq.next * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->sc_dmat, data->map);
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
ieee80211_release_node(ic, data->ni);
|
|
data->ni = NULL;
|
|
|
|
DPRINTFN(15, ("tx done idx=%u\n", sc->txq.next));
|
|
|
|
sc->txq.queued--;
|
|
sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
|
|
}
|
|
|
|
if (sc->txq.queued == 0 && sc->prioq.queued == 0)
|
|
sc->sc_tx_timer = 0;
|
|
if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) {
|
|
sc->sc_flags &= ~RT2560_DATA_OACTIVE;
|
|
if (!(sc->sc_flags & (RT2560_DATA_OACTIVE|RT2560_PRIO_OACTIVE)))
|
|
ifq_clr_oactive(&ifp->if_snd);
|
|
rt2560_start(ifp);
|
|
}
|
|
}
|
|
|
|
void
|
|
rt2560_prio_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = &ic->ic_if;
|
|
|
|
for (;;) {
|
|
struct rt2560_tx_desc *desc = &sc->prioq.desc[sc->prioq.next];
|
|
struct rt2560_tx_data *data = &sc->prioq.data[sc->prioq.next];
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->prioq.map,
|
|
sc->prioq.next * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
if ((letoh32(desc->flags) & RT2560_TX_BUSY) ||
|
|
!(letoh32(desc->flags) & RT2560_TX_VALID))
|
|
break;
|
|
|
|
switch (letoh32(desc->flags) & RT2560_TX_RESULT_MASK) {
|
|
case RT2560_TX_SUCCESS:
|
|
DPRINTFN(10, ("mgt frame sent successfully\n"));
|
|
break;
|
|
|
|
case RT2560_TX_SUCCESS_RETRY:
|
|
DPRINTFN(9, ("mgt frame sent after %u retries\n",
|
|
(letoh32(desc->flags) >> 5) & 0x7));
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_RETRY:
|
|
DPRINTFN(9, ("sending mgt frame failed (too much "
|
|
"retries)\n"));
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_INVALID:
|
|
case RT2560_TX_FAIL_OTHER:
|
|
default:
|
|
DPRINTF(("%s: sending mgt frame failed 0x%08x\n",
|
|
sc->sc_dev.dv_xname, letoh32(desc->flags)));
|
|
break;
|
|
}
|
|
|
|
/* descriptor is no longer valid */
|
|
desc->flags &= ~htole32(RT2560_TX_VALID);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->prioq.map,
|
|
sc->prioq.next * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->sc_dmat, data->map);
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
ieee80211_release_node(ic, data->ni);
|
|
data->ni = NULL;
|
|
|
|
DPRINTFN(15, ("prio done idx=%u\n", sc->prioq.next));
|
|
|
|
sc->prioq.queued--;
|
|
sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
|
|
}
|
|
|
|
if (sc->txq.queued == 0 && sc->prioq.queued == 0)
|
|
sc->sc_tx_timer = 0;
|
|
if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) {
|
|
sc->sc_flags &= ~RT2560_PRIO_OACTIVE;
|
|
if (!(sc->sc_flags & (RT2560_DATA_OACTIVE|RT2560_PRIO_OACTIVE)))
|
|
ifq_clr_oactive(&ifp->if_snd);
|
|
rt2560_start(ifp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Some frames were processed by the hardware cipher engine and are ready for
|
|
* transmission to the IEEE802.11 layer.
|
|
*/
|
|
void
|
|
rt2560_decryption_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct mbuf_list ml = MBUF_LIST_INITIALIZER();
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = &ic->ic_if;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_rxinfo rxi;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *mnew, *m;
|
|
int hw, error;
|
|
|
|
/* retrieve last descriptor index processed by cipher engine */
|
|
hw = (RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr) /
|
|
RT2560_RX_DESC_SIZE;
|
|
|
|
for (; sc->rxq.cur_decrypt != hw;) {
|
|
struct rt2560_rx_desc *desc =
|
|
&sc->rxq.desc[sc->rxq.cur_decrypt];
|
|
struct rt2560_rx_data *data =
|
|
&sc->rxq.data[sc->rxq.cur_decrypt];
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
|
|
sc->rxq.cur_decrypt * RT2560_TX_DESC_SIZE,
|
|
RT2560_TX_DESC_SIZE, BUS_DMASYNC_POSTREAD);
|
|
|
|
if (letoh32(desc->flags) &
|
|
(RT2560_RX_BUSY | RT2560_RX_CIPHER_BUSY))
|
|
break;
|
|
|
|
if (data->drop) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
if ((letoh32(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
|
|
(letoh32(desc->flags) & RT2560_RX_ICV_ERROR)) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
/*
|
|
* Try to allocate a new mbuf for this ring element and load it
|
|
* before processing the current mbuf. If the ring element
|
|
* cannot be loaded, drop the received packet and reuse the old
|
|
* mbuf. In the unlikely case that the old mbuf can't be
|
|
* reloaded either, explicitly panic.
|
|
*/
|
|
MGETHDR(mnew, M_DONTWAIT, MT_DATA);
|
|
if (mnew == NULL) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
MCLGET(mnew, M_DONTWAIT);
|
|
if (!(mnew->m_flags & M_EXT)) {
|
|
m_freem(mnew);
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize, BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->sc_dmat, data->map);
|
|
|
|
error = bus_dmamap_load(sc->sc_dmat, data->map,
|
|
mtod(mnew, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
m_freem(mnew);
|
|
|
|
/* try to reload the old mbuf */
|
|
error = bus_dmamap_load(sc->sc_dmat, data->map,
|
|
mtod(data->m, void *), MCLBYTES, NULL,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
/* very unlikely that it will fail... */
|
|
panic("%s: could not load old rx mbuf",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
/* physical address may have changed */
|
|
desc->physaddr = htole32(data->map->dm_segs->ds_addr);
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
/*
|
|
* New mbuf successfully loaded, update Rx ring and continue
|
|
* processing.
|
|
*/
|
|
m = data->m;
|
|
data->m = mnew;
|
|
desc->physaddr = htole32(data->map->dm_segs->ds_addr);
|
|
|
|
/* finalize mbuf */
|
|
m->m_pkthdr.len = m->m_len =
|
|
(letoh32(desc->flags) >> 16) & 0xfff;
|
|
|
|
#if NBPFILTER > 0
|
|
if (sc->sc_drvbpf != NULL) {
|
|
struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
uint32_t tsf_lo, tsf_hi;
|
|
|
|
/* get timestamp (low and high 32 bits) */
|
|
tsf_hi = RAL_READ(sc, RT2560_CSR17);
|
|
tsf_lo = RAL_READ(sc, RT2560_CSR16);
|
|
|
|
tap->wr_tsf =
|
|
htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
|
|
tap->wr_flags = 0;
|
|
tap->wr_rate = rt2560_rxrate(desc);
|
|
tap->wr_chan_freq = htole16(ic->ic_ibss_chan->ic_freq);
|
|
tap->wr_chan_flags =
|
|
htole16(ic->ic_ibss_chan->ic_flags);
|
|
tap->wr_antenna = sc->rx_ant;
|
|
tap->wr_antsignal = desc->rssi;
|
|
|
|
bpf_mtap_hdr(sc->sc_drvbpf, tap, sc->sc_txtap_len, m,
|
|
BPF_DIRECTION_IN);
|
|
}
|
|
#endif
|
|
wh = mtod(m, struct ieee80211_frame *);
|
|
ni = ieee80211_find_rxnode(ic, wh);
|
|
|
|
/* send the frame to the 802.11 layer */
|
|
memset(&rxi, 0, sizeof(rxi));
|
|
rxi.rxi_rssi = desc->rssi;
|
|
rxi.rxi_tstamp = 0; /* unused */
|
|
ieee80211_inputm(ifp, m, ni, &rxi, &ml);
|
|
|
|
/* node is no longer needed */
|
|
ieee80211_release_node(ic, ni);
|
|
|
|
skip: desc->flags = htole32(RT2560_RX_BUSY);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
|
|
sc->rxq.cur_decrypt * RT2560_TX_DESC_SIZE,
|
|
RT2560_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(15, ("decryption done idx=%u\n", sc->rxq.cur_decrypt));
|
|
|
|
sc->rxq.cur_decrypt =
|
|
(sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
|
|
}
|
|
if_input(ifp, &ml);
|
|
}
|
|
|
|
/*
|
|
* Some frames were received. Pass them to the hardware cipher engine before
|
|
* sending them to the 802.11 layer.
|
|
*/
|
|
void
|
|
rt2560_rx_intr(struct rt2560_softc *sc)
|
|
{
|
|
for (;;) {
|
|
struct rt2560_rx_desc *desc = &sc->rxq.desc[sc->rxq.cur];
|
|
struct rt2560_rx_data *data = &sc->rxq.data[sc->rxq.cur];
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
|
|
sc->rxq.cur * RT2560_RX_DESC_SIZE, RT2560_RX_DESC_SIZE,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
if (letoh32(desc->flags) &
|
|
(RT2560_RX_BUSY | RT2560_RX_CIPHER_BUSY))
|
|
break;
|
|
|
|
data->drop = 0;
|
|
|
|
if (letoh32(desc->flags) &
|
|
(RT2560_RX_PHY_ERROR | RT2560_RX_CRC_ERROR)) {
|
|
/*
|
|
* This should not happen since we did not request
|
|
* to receive those frames when we filled RXCSR0.
|
|
*/
|
|
DPRINTFN(5, ("PHY or CRC error flags 0x%08x\n",
|
|
letoh32(desc->flags)));
|
|
data->drop = 1;
|
|
}
|
|
|
|
if (((letoh32(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
|
|
DPRINTFN(5, ("bad length\n"));
|
|
data->drop = 1;
|
|
}
|
|
|
|
/* mark the frame for decryption */
|
|
desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
|
|
sc->rxq.cur * RT2560_RX_DESC_SIZE, RT2560_RX_DESC_SIZE,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
|
|
|
|
sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
|
|
}
|
|
|
|
/* kick decrypt */
|
|
RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
|
|
}
|
|
|
|
#ifndef IEEE80211_STA_ONLY
|
|
/*
|
|
* This function is called in HostAP or IBSS modes when it's time to send a
|
|
* new beacon (every ni_intval milliseconds).
|
|
*/
|
|
void
|
|
rt2560_beacon_expire(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rt2560_tx_data *data;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_IBSS &&
|
|
ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
return;
|
|
|
|
data = &sc->bcnq.data[sc->bcnq.next];
|
|
|
|
if (sc->sc_flags & RT2560_UPDATE_SLOT) {
|
|
sc->sc_flags &= ~RT2560_UPDATE_SLOT;
|
|
sc->sc_flags |= RT2560_SET_SLOTTIME;
|
|
} else if (sc->sc_flags & RT2560_SET_SLOTTIME) {
|
|
sc->sc_flags &= ~RT2560_SET_SLOTTIME;
|
|
rt2560_set_slottime(sc);
|
|
}
|
|
|
|
if (ic->ic_curmode == IEEE80211_MODE_11G) {
|
|
/* update ERP Information Element */
|
|
*sc->erp = ic->ic_bss->ni_erp;
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize, BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
#if defined(RT2560_DEBUG) && NBPFILTER > 0
|
|
if (ic->ic_rawbpf != NULL)
|
|
bpf_mtap(ic->ic_rawbpf, data->m, BPF_DIRECTION_OUT);
|
|
#endif
|
|
|
|
DPRINTFN(15, ("beacon expired\n"));
|
|
}
|
|
#endif
|
|
|
|
void
|
|
rt2560_wakeup_expire(struct rt2560_softc *sc)
|
|
{
|
|
DPRINTFN(15, ("wakeup expired\n"));
|
|
}
|
|
|
|
int
|
|
rt2560_intr(void *arg)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
struct ifnet *ifp = &sc->sc_ic.ic_if;
|
|
uint32_t r;
|
|
|
|
r = RAL_READ(sc, RT2560_CSR7);
|
|
if (__predict_false(r == 0xffffffff))
|
|
return 0; /* device likely went away */
|
|
if (r == 0)
|
|
return 0; /* not for us */
|
|
|
|
/* disable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
|
|
|
|
/* acknowledge interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR7, r);
|
|
|
|
/* don't re-enable interrupts if we're shutting down */
|
|
if (!(ifp->if_flags & IFF_RUNNING))
|
|
return 0;
|
|
|
|
#ifndef IEEE80211_STA_ONLY
|
|
if (r & RT2560_BEACON_EXPIRE)
|
|
rt2560_beacon_expire(sc);
|
|
#endif
|
|
|
|
if (r & RT2560_WAKEUP_EXPIRE)
|
|
rt2560_wakeup_expire(sc);
|
|
|
|
if (r & RT2560_ENCRYPTION_DONE)
|
|
rt2560_encryption_intr(sc);
|
|
|
|
if (r & RT2560_TX_DONE)
|
|
rt2560_tx_intr(sc);
|
|
|
|
if (r & RT2560_PRIO_DONE)
|
|
rt2560_prio_intr(sc);
|
|
|
|
if (r & RT2560_DECRYPTION_DONE)
|
|
rt2560_decryption_intr(sc);
|
|
|
|
if (r & RT2560_RX_DONE)
|
|
rt2560_rx_intr(sc);
|
|
|
|
/* re-enable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* quickly determine if a given rate is CCK or OFDM */
|
|
#define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
|
|
|
|
#define RAL_ACK_SIZE 14 /* 10 + 4(FCS) */
|
|
#define RAL_CTS_SIZE 14 /* 10 + 4(FCS) */
|
|
|
|
#define RAL_SIFS 10 /* us */
|
|
|
|
#define RT2560_RXTX_TURNAROUND 10 /* us */
|
|
|
|
/*
|
|
* This function is only used by the Rx radiotap code. It returns the rate at
|
|
* which a given frame was received.
|
|
*/
|
|
#if NBPFILTER > 0
|
|
uint8_t
|
|
rt2560_rxrate(const struct rt2560_rx_desc *desc)
|
|
{
|
|
if (letoh32(desc->flags) & RT2560_RX_OFDM) {
|
|
/* reverse function of rt2560_plcp_signal */
|
|
switch (desc->rate) {
|
|
case 0xb: return 12;
|
|
case 0xf: return 18;
|
|
case 0xa: return 24;
|
|
case 0xe: return 36;
|
|
case 0x9: return 48;
|
|
case 0xd: return 72;
|
|
case 0x8: return 96;
|
|
case 0xc: return 108;
|
|
}
|
|
} else {
|
|
if (desc->rate == 10)
|
|
return 2;
|
|
if (desc->rate == 20)
|
|
return 4;
|
|
if (desc->rate == 55)
|
|
return 11;
|
|
if (desc->rate == 110)
|
|
return 22;
|
|
}
|
|
return 2; /* should not get there */
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Return the expected ack rate for a frame transmitted at rate `rate'.
|
|
*/
|
|
int
|
|
rt2560_ack_rate(struct ieee80211com *ic, int rate)
|
|
{
|
|
switch (rate) {
|
|
/* CCK rates */
|
|
case 2:
|
|
return 2;
|
|
case 4:
|
|
case 11:
|
|
case 22:
|
|
return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate;
|
|
|
|
/* OFDM rates */
|
|
case 12:
|
|
case 18:
|
|
return 12;
|
|
case 24:
|
|
case 36:
|
|
return 24;
|
|
case 48:
|
|
case 72:
|
|
case 96:
|
|
case 108:
|
|
return 48;
|
|
}
|
|
|
|
/* default to 1Mbps */
|
|
return 2;
|
|
}
|
|
|
|
/*
|
|
* Compute the duration (in us) needed to transmit `len' bytes at rate `rate'.
|
|
* The function automatically determines the operating mode depending on the
|
|
* given rate. `flags' indicates whether short preamble is in use or not.
|
|
*/
|
|
uint16_t
|
|
rt2560_txtime(int len, int rate, uint32_t flags)
|
|
{
|
|
uint16_t txtime;
|
|
|
|
if (RAL_RATE_IS_OFDM(rate)) {
|
|
/* IEEE Std 802.11g-2003, pp. 44 */
|
|
txtime = (8 + 4 * len + 3 + rate - 1) / rate;
|
|
txtime = 16 + 4 + 4 * txtime + 6;
|
|
} else {
|
|
/* IEEE Std 802.11b-1999, pp. 28 */
|
|
txtime = (16 * len + rate - 1) / rate;
|
|
if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE))
|
|
txtime += 72 + 24;
|
|
else
|
|
txtime += 144 + 48;
|
|
}
|
|
return txtime;
|
|
}
|
|
|
|
uint8_t
|
|
rt2560_plcp_signal(int rate)
|
|
{
|
|
switch (rate) {
|
|
/* CCK rates (returned values are device-dependent) */
|
|
case 2: return 0x0;
|
|
case 4: return 0x1;
|
|
case 11: return 0x2;
|
|
case 22: return 0x3;
|
|
|
|
/* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
|
|
case 12: return 0xb;
|
|
case 18: return 0xf;
|
|
case 24: return 0xa;
|
|
case 36: return 0xe;
|
|
case 48: return 0x9;
|
|
case 72: return 0xd;
|
|
case 96: return 0x8;
|
|
case 108: return 0xc;
|
|
|
|
/* unsupported rates (should not get there) */
|
|
default: return 0xff;
|
|
}
|
|
}
|
|
|
|
void
|
|
rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
|
|
uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t plcp_length;
|
|
int remainder;
|
|
|
|
desc->flags = htole32(flags);
|
|
desc->flags |= htole32(len << 16);
|
|
desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY) :
|
|
htole32(RT2560_TX_BUSY | RT2560_TX_VALID);
|
|
|
|
desc->physaddr = htole32(physaddr);
|
|
desc->wme = htole16(
|
|
RT2560_AIFSN(2) |
|
|
RT2560_LOGCWMIN(3) |
|
|
RT2560_LOGCWMAX(8));
|
|
|
|
/* setup PLCP fields */
|
|
desc->plcp_signal = rt2560_plcp_signal(rate);
|
|
desc->plcp_service = 4;
|
|
|
|
len += IEEE80211_CRC_LEN;
|
|
if (RAL_RATE_IS_OFDM(rate)) {
|
|
desc->flags |= htole32(RT2560_TX_OFDM);
|
|
|
|
plcp_length = len & 0xfff;
|
|
desc->plcp_length_hi = plcp_length >> 6;
|
|
desc->plcp_length_lo = plcp_length & 0x3f;
|
|
} else {
|
|
plcp_length = (16 * len + rate - 1) / rate;
|
|
if (rate == 22) {
|
|
remainder = (16 * len) % 22;
|
|
if (remainder != 0 && remainder < 7)
|
|
desc->plcp_service |= RT2560_PLCP_LENGEXT;
|
|
}
|
|
desc->plcp_length_hi = plcp_length >> 8;
|
|
desc->plcp_length_lo = plcp_length & 0xff;
|
|
|
|
if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
|
|
desc->plcp_signal |= 0x08;
|
|
}
|
|
}
|
|
|
|
#ifndef IEEE80211_STA_ONLY
|
|
int
|
|
rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
int rate = 2, error;
|
|
|
|
desc = &sc->bcnq.desc[sc->bcnq.cur];
|
|
data = &sc->bcnq.data[sc->bcnq.cur];
|
|
|
|
error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: can't map mbuf (error %d)\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
|
|
RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0,
|
|
data->map->dm_segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, sc->bcnq.map,
|
|
sc->bcnq.cur * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
/*
|
|
* Store pointer to ERP Information Element so that we can update it
|
|
* dynamically when the slot time changes.
|
|
* XXX: this is ugly since it depends on how net80211 builds beacon
|
|
* frames but ieee80211_beacon_alloc() don't store offsets for us.
|
|
*/
|
|
if (ic->ic_curmode == IEEE80211_MODE_11G) {
|
|
sc->erp =
|
|
mtod(m0, uint8_t *) +
|
|
sizeof (struct ieee80211_frame) +
|
|
8 + 2 + 2 +
|
|
((ic->ic_userflags & IEEE80211_F_HIDENWID) ?
|
|
1 : 2 + ni->ni_esslen) +
|
|
2 + min(ni->ni_rates.rs_nrates, IEEE80211_RATE_SIZE) +
|
|
2 + 1 +
|
|
((ic->ic_opmode == IEEE80211_M_IBSS) ? 4 : 6) +
|
|
2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
uint16_t dur;
|
|
uint32_t flags = 0;
|
|
int rate = 2, error;
|
|
|
|
desc = &sc->prioq.desc[sc->prioq.cur];
|
|
data = &sc->prioq.data[sc->prioq.cur];
|
|
|
|
error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: can't map mbuf (error %d)\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
#if NBPFILTER > 0
|
|
if (sc->sc_drvbpf != NULL) {
|
|
struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap_hdr(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0,
|
|
BPF_DIRECTION_OUT);
|
|
}
|
|
#endif
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RT2560_TX_NEED_ACK;
|
|
|
|
dur = rt2560_txtime(RAL_ACK_SIZE, rate, ic->ic_flags) +
|
|
RAL_SIFS;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
|
|
#ifndef IEEE80211_STA_ONLY
|
|
/* tell hardware to set timestamp for probe responses */
|
|
if ((wh->i_fc[0] &
|
|
(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
|
|
(IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
|
|
flags |= RT2560_TX_TIMESTAMP;
|
|
#endif
|
|
}
|
|
|
|
rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
|
|
data->map->dm_segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, sc->prioq.map,
|
|
sc->prioq.cur * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(10, ("sending mgt frame len=%u idx=%u rate=%u\n",
|
|
m0->m_pkthdr.len, sc->prioq.cur, rate));
|
|
|
|
/* kick prio */
|
|
sc->prioq.queued++;
|
|
sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
|
|
RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct rt2560_tx_ring *txq = &sc->txq;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
struct mbuf *m1;
|
|
uint16_t dur;
|
|
uint32_t flags = 0;
|
|
int pktlen, rate, needcts = 0, needrts = 0, error;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
|
|
k = ieee80211_get_txkey(ic, wh, ni);
|
|
|
|
if ((m0 = ieee80211_encrypt(ic, m0, k)) == NULL)
|
|
return ENOBUFS;
|
|
|
|
/* packet header may have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
/* compute actual packet length (including CRC and crypto overhead) */
|
|
pktlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
|
|
|
|
/* pickup a rate */
|
|
if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
|
|
((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
|
|
IEEE80211_FC0_TYPE_MGT)) {
|
|
/* mgmt/multicast frames are sent at the lowest avail. rate */
|
|
rate = ni->ni_rates.rs_rates[0];
|
|
} else if (ic->ic_fixed_rate != -1) {
|
|
rate = ic->ic_sup_rates[ic->ic_curmode].
|
|
rs_rates[ic->ic_fixed_rate];
|
|
} else
|
|
rate = ni->ni_rates.rs_rates[ni->ni_txrate];
|
|
if (rate == 0)
|
|
rate = 2; /* XXX should not happen */
|
|
rate &= IEEE80211_RATE_VAL;
|
|
|
|
/*
|
|
* Packet Bursting: backoff after ppb=8 frames to give other STAs a
|
|
* chance to contend for the wireless medium.
|
|
*/
|
|
if (ic->ic_opmode == IEEE80211_M_STA && (ni->ni_txseq & 7))
|
|
flags |= RT2560_TX_IFS_SIFS;
|
|
|
|
/* check if RTS/CTS or CTS-to-self protection must be used */
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
/* multicast frames are not sent at OFDM rates in 802.11b/g */
|
|
if (pktlen > ic->ic_rtsthreshold) {
|
|
needrts = 1; /* RTS/CTS based on frame length */
|
|
} else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
|
|
RAL_RATE_IS_OFDM(rate)) {
|
|
if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
|
|
needcts = 1; /* CTS-to-self */
|
|
else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
|
|
needrts = 1; /* RTS/CTS */
|
|
}
|
|
}
|
|
if (needrts || needcts) {
|
|
struct mbuf *mprot;
|
|
int protrate, ackrate;
|
|
|
|
protrate = 2; /* XXX */
|
|
ackrate = rt2560_ack_rate(ic, rate);
|
|
|
|
dur = rt2560_txtime(pktlen, rate, ic->ic_flags) +
|
|
rt2560_txtime(RAL_ACK_SIZE, ackrate, ic->ic_flags) +
|
|
2 * RAL_SIFS;
|
|
if (needrts) {
|
|
dur += rt2560_txtime(RAL_CTS_SIZE, rt2560_ack_rate(ic,
|
|
protrate), ic->ic_flags) + RAL_SIFS;
|
|
mprot = ieee80211_get_rts(ic, wh, dur);
|
|
} else {
|
|
mprot = ieee80211_get_cts_to_self(ic, dur);
|
|
}
|
|
if (mprot == NULL) {
|
|
printf("%s: could not allocate protection frame\n",
|
|
sc->sc_dev.dv_xname);
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
|
|
desc = &txq->desc[txq->cur_encrypt];
|
|
data = &txq->data[txq->cur_encrypt];
|
|
|
|
error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, mprot,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: can't map mbuf (error %d)\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
m_freem(mprot);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
data->m = mprot;
|
|
/* avoid multiple free() of the same node for each fragment */
|
|
data->ni = ieee80211_ref_node(ni);
|
|
|
|
/* XXX may want to pass the protection frame to BPF */
|
|
|
|
rt2560_setup_tx_desc(sc, desc,
|
|
(needrts ? RT2560_TX_NEED_ACK : 0) | RT2560_TX_MORE_FRAG,
|
|
mprot->m_pkthdr.len, protrate, 1,
|
|
data->map->dm_segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0,
|
|
data->map->dm_mapsize, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, txq->map,
|
|
txq->cur_encrypt * RT2560_TX_DESC_SIZE,
|
|
RT2560_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE);
|
|
|
|
txq->queued++;
|
|
if (++txq->cur_encrypt >= txq->count)
|
|
txq->cur_encrypt = 0;
|
|
|
|
flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
|
|
}
|
|
|
|
data = &txq->data[txq->cur_encrypt];
|
|
desc = &txq->desc[txq->cur_encrypt];
|
|
|
|
error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0 && error != EFBIG) {
|
|
printf("%s: can't map mbuf (error %d)\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
if (error != 0) {
|
|
/* too many fragments, linearize */
|
|
MGETHDR(m1, M_DONTWAIT, MT_DATA);
|
|
if (m1 == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
if (m0->m_pkthdr.len > MHLEN) {
|
|
MCLGET(m1, M_DONTWAIT);
|
|
if (!(m1->m_flags & M_EXT)) {
|
|
m_freem(m0);
|
|
m_freem(m1);
|
|
return ENOBUFS;
|
|
}
|
|
}
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m1, caddr_t));
|
|
m1->m_pkthdr.len = m1->m_len = m0->m_pkthdr.len;
|
|
m_freem(m0);
|
|
m0 = m1;
|
|
|
|
error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
|
|
BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
printf("%s: can't map mbuf (error %d)\n",
|
|
sc->sc_dev.dv_xname, error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
/* packet header have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
#if NBPFILTER > 0
|
|
if (sc->sc_drvbpf != NULL) {
|
|
struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap_hdr(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0,
|
|
BPF_DIRECTION_OUT);
|
|
}
|
|
#endif
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RT2560_TX_NEED_ACK;
|
|
|
|
dur = rt2560_txtime(RAL_ACK_SIZE, rt2560_ack_rate(ic, rate),
|
|
ic->ic_flags) + RAL_SIFS;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
}
|
|
|
|
rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
|
|
data->map->dm_segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
|
|
BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->sc_dmat, txq->map,
|
|
txq->cur_encrypt * RT2560_TX_DESC_SIZE, RT2560_TX_DESC_SIZE,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(10, ("sending frame len=%u idx=%u rate=%u\n",
|
|
m0->m_pkthdr.len, txq->cur_encrypt, rate));
|
|
|
|
/* kick encrypt */
|
|
txq->queued++;
|
|
if (++txq->cur_encrypt >= txq->count)
|
|
txq->cur_encrypt = 0;
|
|
RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
rt2560_start(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct mbuf *m0;
|
|
struct ieee80211_node *ni;
|
|
|
|
/*
|
|
* net80211 may still try to send management frames even if the
|
|
* IFF_RUNNING flag is not set...
|
|
*/
|
|
if (!(ifp->if_flags & IFF_RUNNING) || ifq_is_oactive(&ifp->if_snd))
|
|
return;
|
|
|
|
for (;;) {
|
|
if (mq_len(&ic->ic_mgtq) > 0) {
|
|
if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
|
|
ifq_set_oactive(&ifp->if_snd);
|
|
sc->sc_flags |= RT2560_PRIO_OACTIVE;
|
|
break;
|
|
}
|
|
|
|
m0 = mq_dequeue(&ic->ic_mgtq);
|
|
if (m0 == NULL)
|
|
continue;
|
|
ni = m0->m_pkthdr.ph_cookie;
|
|
#if NBPFILTER > 0
|
|
if (ic->ic_rawbpf != NULL)
|
|
bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);
|
|
#endif
|
|
if (rt2560_tx_mgt(sc, m0, ni) != 0)
|
|
break;
|
|
|
|
} else {
|
|
/* Because RTS/CTS requires an extra frame we need
|
|
* space for 2 frames on the regular Tx queue. */
|
|
if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
|
|
ifq_set_oactive(&ifp->if_snd);
|
|
sc->sc_flags |= RT2560_DATA_OACTIVE;
|
|
break;
|
|
}
|
|
|
|
if (ic->ic_state != IEEE80211_S_RUN)
|
|
break;
|
|
|
|
m0 = ifq_dequeue(&ifp->if_snd);
|
|
if (m0 == NULL)
|
|
break;
|
|
#if NBPFILTER > 0
|
|
if (ifp->if_bpf != NULL)
|
|
bpf_mtap(ifp->if_bpf, m0, BPF_DIRECTION_OUT);
|
|
#endif
|
|
m0 = ieee80211_encap(ifp, m0, &ni);
|
|
if (m0 == NULL)
|
|
continue;
|
|
#if NBPFILTER > 0
|
|
if (ic->ic_rawbpf != NULL)
|
|
bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);
|
|
#endif
|
|
if (rt2560_tx_data(sc, m0, ni) != 0) {
|
|
if (ni != NULL)
|
|
ieee80211_release_node(ic, ni);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
sc->sc_tx_timer = 5;
|
|
ifp->if_timer = 1;
|
|
}
|
|
}
|
|
|
|
void
|
|
rt2560_watchdog(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
|
|
ifp->if_timer = 0;
|
|
|
|
if (sc->sc_tx_timer > 0) {
|
|
if (--sc->sc_tx_timer == 0) {
|
|
printf("%s: device timeout\n", sc->sc_dev.dv_xname);
|
|
rt2560_init(ifp);
|
|
ifp->if_oerrors++;
|
|
return;
|
|
}
|
|
ifp->if_timer = 1;
|
|
}
|
|
|
|
ieee80211_watchdog(ifp);
|
|
}
|
|
|
|
int
|
|
rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
int s, error = 0;
|
|
|
|
s = splnet();
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFADDR:
|
|
ifp->if_flags |= IFF_UP;
|
|
/* FALLTHROUGH */
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
rt2560_update_promisc(sc);
|
|
else
|
|
rt2560_init(ifp);
|
|
} else {
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
rt2560_stop(ifp, 1);
|
|
}
|
|
break;
|
|
|
|
case SIOCS80211CHANNEL:
|
|
/*
|
|
* This allows for fast channel switching in monitor mode
|
|
* (used by kismet). In IBSS mode, we must explicitly reset
|
|
* the interface to generate a new beacon frame.
|
|
*/
|
|
error = ieee80211_ioctl(ifp, cmd, data);
|
|
if (error == ENETRESET &&
|
|
ic->ic_opmode == IEEE80211_M_MONITOR) {
|
|
if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
|
|
(IFF_UP | IFF_RUNNING))
|
|
rt2560_set_chan(sc, ic->ic_ibss_chan);
|
|
error = 0;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error = ieee80211_ioctl(ifp, cmd, data);
|
|
}
|
|
|
|
if (error == ENETRESET) {
|
|
if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
|
|
(IFF_UP | IFF_RUNNING))
|
|
rt2560_init(ifp);
|
|
error = 0;
|
|
}
|
|
|
|
splx(s);
|
|
|
|
return error;
|
|
}
|
|
|
|
void
|
|
rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
if (ntries == 100) {
|
|
printf("%s: could not write to BBP\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
|
|
RAL_WRITE(sc, RT2560_BBPCSR, tmp);
|
|
|
|
DPRINTFN(15, ("BBP R%u <- 0x%02x\n", reg, val));
|
|
}
|
|
|
|
uint8_t
|
|
rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
|
|
{
|
|
uint32_t val;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
if (ntries == 100) {
|
|
printf("%s: could not read from BBP\n", sc->sc_dev.dv_xname);
|
|
return 0;
|
|
}
|
|
|
|
val = RT2560_BBP_BUSY | reg << 8;
|
|
RAL_WRITE(sc, RT2560_BBPCSR, val);
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
val = RAL_READ(sc, RT2560_BBPCSR);
|
|
if (!(val & RT2560_BBP_BUSY))
|
|
return val & 0xff;
|
|
DELAY(1);
|
|
}
|
|
|
|
printf("%s: could not read from BBP\n", sc->sc_dev.dv_xname);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
if (ntries == 100) {
|
|
printf("%s: could not write to RF\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
|
|
(reg & 0x3);
|
|
RAL_WRITE(sc, RT2560_RFCSR, tmp);
|
|
|
|
/* remember last written value in sc */
|
|
sc->rf_regs[reg] = val;
|
|
|
|
DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff));
|
|
}
|
|
|
|
void
|
|
rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint8_t power, tmp;
|
|
u_int chan;
|
|
|
|
chan = ieee80211_chan2ieee(ic, c);
|
|
if (chan == 0 || chan == IEEE80211_CHAN_ANY)
|
|
return;
|
|
|
|
power = min(sc->txpow[chan - 1], 31);
|
|
|
|
DPRINTFN(2, ("setting channel to %u, txpower to %u\n", chan, power));
|
|
|
|
switch (sc->rf_rev) {
|
|
case RT2560_RF_2522:
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x00814);
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2522_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x00040);
|
|
break;
|
|
|
|
case RT2560_RF_2523:
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x08804);
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2523_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x38044);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RT2560_RF_2524:
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x0c808);
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2524_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x00040);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RT2560_RF_2525:
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x08808);
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2525_hi_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan == 14) ? 0x00280 : 0x00286);
|
|
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x08808);
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2525_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RT2560_RF_2525E:
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x08808);
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2525e_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan == 14) ? 0x00286 : 0x00282);
|
|
break;
|
|
|
|
case RT2560_RF_2526:
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2526_hi_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan & 1) ? 0x00386 : 0x00381);
|
|
rt2560_rf_write(sc, RT2560_RF1, 0x08804);
|
|
|
|
rt2560_rf_write(sc, RT2560_RF2, rt2560_rf2526_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RT2560_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RT2560_RF4,
|
|
(chan & 1) ? 0x00386 : 0x00381);
|
|
break;
|
|
}
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR &&
|
|
ic->ic_state != IEEE80211_S_SCAN) {
|
|
/* set Japan filter bit for channel 14 */
|
|
tmp = rt2560_bbp_read(sc, 70);
|
|
|
|
tmp &= ~RT2560_JAPAN_FILTER;
|
|
if (chan == 14)
|
|
tmp |= RT2560_JAPAN_FILTER;
|
|
|
|
rt2560_bbp_write(sc, 70, tmp);
|
|
|
|
DELAY(1000); /* RF needs a 1ms delay here */
|
|
rt2560_disable_rf_tune(sc);
|
|
|
|
/* clear CRC errors */
|
|
RAL_READ(sc, RT2560_CNT0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Disable RF auto-tuning.
|
|
*/
|
|
void
|
|
rt2560_disable_rf_tune(struct rt2560_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
if (sc->rf_rev != RT2560_RF_2523) {
|
|
tmp = sc->rf_regs[RT2560_RF1] & ~RT2560_RF1_AUTOTUNE;
|
|
rt2560_rf_write(sc, RT2560_RF1, tmp);
|
|
}
|
|
|
|
tmp = sc->rf_regs[RT2560_RF3] & ~RT2560_RF3_AUTOTUNE;
|
|
rt2560_rf_write(sc, RT2560_RF3, tmp);
|
|
|
|
DPRINTFN(2, ("disabling RF autotune\n"));
|
|
}
|
|
|
|
/*
|
|
* Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
|
|
* synchronization.
|
|
*/
|
|
void
|
|
rt2560_enable_tsf_sync(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t logcwmin, preload;
|
|
uint32_t tmp;
|
|
|
|
/* first, disable TSF synchronization */
|
|
RAL_WRITE(sc, RT2560_CSR14, 0);
|
|
|
|
tmp = 16 * ic->ic_bss->ni_intval;
|
|
RAL_WRITE(sc, RT2560_CSR12, tmp);
|
|
|
|
RAL_WRITE(sc, RT2560_CSR13, 0);
|
|
|
|
logcwmin = 5;
|
|
preload = (ic->ic_opmode == IEEE80211_M_STA) ? 384 : 1024;
|
|
tmp = logcwmin << 16 | preload;
|
|
RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
|
|
|
|
/* finally, enable TSF synchronization */
|
|
tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
tmp |= RT2560_ENABLE_TSF_SYNC(1);
|
|
#ifndef IEEE80211_STA_ONLY
|
|
else
|
|
tmp |= RT2560_ENABLE_TSF_SYNC(2) |
|
|
RT2560_ENABLE_BEACON_GENERATOR;
|
|
#endif
|
|
RAL_WRITE(sc, RT2560_CSR14, tmp);
|
|
|
|
DPRINTF(("enabling TSF synchronization\n"));
|
|
}
|
|
|
|
void
|
|
rt2560_update_plcp(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
/* no short preamble for 1Mbps */
|
|
RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
|
|
|
|
if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
|
|
/* values taken from the reference driver */
|
|
RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
|
|
RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
|
|
RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
|
|
} else {
|
|
/* same values as above or'ed 0x8 */
|
|
RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
|
|
RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
|
|
RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
|
|
}
|
|
|
|
DPRINTF(("updating PLCP for %s preamble\n",
|
|
(ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long"));
|
|
}
|
|
|
|
void
|
|
rt2560_updateslot(struct ieee80211com *ic)
|
|
{
|
|
struct rt2560_softc *sc = ic->ic_if.if_softc;
|
|
|
|
#ifndef IEEE80211_STA_ONLY
|
|
if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
|
|
/*
|
|
* In HostAP mode, we defer setting of new slot time until
|
|
* updated ERP Information Element has propagated to all
|
|
* associated STAs.
|
|
*/
|
|
sc->sc_flags |= RT2560_UPDATE_SLOT;
|
|
} else
|
|
#endif
|
|
rt2560_set_slottime(sc);
|
|
}
|
|
|
|
/*
|
|
* IEEE 802.11a (and possibly 802.11g) use short slot time. Refer to
|
|
* IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
|
|
*/
|
|
void
|
|
rt2560_set_slottime(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint8_t slottime;
|
|
uint16_t sifs, pifs, difs, eifs;
|
|
uint32_t tmp;
|
|
|
|
slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ?
|
|
IEEE80211_DUR_DS_SHSLOT : IEEE80211_DUR_DS_SLOT;
|
|
|
|
/* define the MAC slot boundaries */
|
|
sifs = RAL_SIFS - RT2560_RXTX_TURNAROUND;
|
|
pifs = sifs + slottime;
|
|
difs = sifs + 2 * slottime;
|
|
eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
|
|
|
|
tmp = RAL_READ(sc, RT2560_CSR11);
|
|
tmp = (tmp & ~0x1f00) | slottime << 8;
|
|
RAL_WRITE(sc, RT2560_CSR11, tmp);
|
|
|
|
tmp = pifs << 16 | sifs;
|
|
RAL_WRITE(sc, RT2560_CSR18, tmp);
|
|
|
|
tmp = eifs << 16 | difs;
|
|
RAL_WRITE(sc, RT2560_CSR19, tmp);
|
|
|
|
DPRINTF(("setting slottime to %uus\n", slottime));
|
|
}
|
|
|
|
void
|
|
rt2560_set_basicrates(struct rt2560_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
/* update basic rate set */
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x3);
|
|
} else {
|
|
/* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
|
|
RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0xf);
|
|
}
|
|
}
|
|
|
|
void
|
|
rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
/* set ON period to 70ms and OFF period to 30ms */
|
|
tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
|
|
RAL_WRITE(sc, RT2560_LEDCSR, tmp);
|
|
}
|
|
|
|
void
|
|
rt2560_set_bssid(struct rt2560_softc *sc, uint8_t *bssid)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
|
|
RAL_WRITE(sc, RT2560_CSR5, tmp);
|
|
|
|
tmp = bssid[4] | bssid[5] << 8;
|
|
RAL_WRITE(sc, RT2560_CSR6, tmp);
|
|
|
|
DPRINTF(("setting BSSID to %s\n", ether_sprintf(bssid)));
|
|
}
|
|
|
|
void
|
|
rt2560_set_macaddr(struct rt2560_softc *sc, uint8_t *addr)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
|
|
RAL_WRITE(sc, RT2560_CSR3, tmp);
|
|
|
|
tmp = addr[4] | addr[5] << 8;
|
|
RAL_WRITE(sc, RT2560_CSR4, tmp);
|
|
|
|
DPRINTF(("setting MAC address to %s\n", ether_sprintf(addr)));
|
|
}
|
|
|
|
void
|
|
rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
tmp = RAL_READ(sc, RT2560_CSR3);
|
|
addr[0] = tmp & 0xff;
|
|
addr[1] = (tmp >> 8) & 0xff;
|
|
addr[2] = (tmp >> 16) & 0xff;
|
|
addr[3] = (tmp >> 24);
|
|
|
|
tmp = RAL_READ(sc, RT2560_CSR4);
|
|
addr[4] = tmp & 0xff;
|
|
addr[5] = (tmp >> 8) & 0xff;
|
|
}
|
|
|
|
void
|
|
rt2560_update_promisc(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = &sc->sc_ic.ic_if;
|
|
uint32_t tmp;
|
|
|
|
tmp = RAL_READ(sc, RT2560_RXCSR0);
|
|
|
|
tmp &= ~RT2560_DROP_NOT_TO_ME;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RT2560_DROP_NOT_TO_ME;
|
|
|
|
RAL_WRITE(sc, RT2560_RXCSR0, tmp);
|
|
|
|
DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
|
|
"entering" : "leaving"));
|
|
}
|
|
|
|
void
|
|
rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
|
|
{
|
|
uint32_t tmp;
|
|
uint8_t tx;
|
|
|
|
tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
tx |= RT2560_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
tx |= RT2560_BBP_ANTB;
|
|
else
|
|
tx |= RT2560_BBP_DIVERSITY;
|
|
|
|
/* need to force I/Q flip for RF 2525e, 2526 and 5222 */
|
|
if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
|
|
sc->rf_rev == RT2560_RF_5222)
|
|
tx |= RT2560_BBP_FLIPIQ;
|
|
|
|
rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
|
|
|
|
/* update values for CCK and OFDM in BBPCSR1 */
|
|
tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
|
|
tmp |= (tx & 0x7) << 16 | (tx & 0x7);
|
|
RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
|
|
}
|
|
|
|
void
|
|
rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
|
|
{
|
|
uint8_t rx;
|
|
|
|
rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
rx |= RT2560_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
rx |= RT2560_BBP_ANTB;
|
|
else
|
|
rx |= RT2560_BBP_DIVERSITY;
|
|
|
|
/* need to force no I/Q flip for RF 2525e and 2526 */
|
|
if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
|
|
rx &= ~RT2560_BBP_FLIPIQ;
|
|
|
|
rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
|
|
}
|
|
|
|
const char *
|
|
rt2560_get_rf(int rev)
|
|
{
|
|
switch (rev) {
|
|
case RT2560_RF_2522: return "RT2522";
|
|
case RT2560_RF_2523: return "RT2523";
|
|
case RT2560_RF_2524: return "RT2524";
|
|
case RT2560_RF_2525: return "RT2525";
|
|
case RT2560_RF_2525E: return "RT2525e";
|
|
case RT2560_RF_2526: return "RT2526";
|
|
case RT2560_RF_5222: return "RT5222";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
void
|
|
rt2560_read_eeprom(struct rt2560_softc *sc)
|
|
{
|
|
uint16_t val;
|
|
int i;
|
|
|
|
val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
|
|
sc->rf_rev = (val >> 11) & 0x1f;
|
|
sc->hw_radio = (val >> 10) & 0x1;
|
|
sc->led_mode = (val >> 6) & 0x7;
|
|
sc->rx_ant = (val >> 4) & 0x3;
|
|
sc->tx_ant = (val >> 2) & 0x3;
|
|
sc->nb_ant = val & 0x3;
|
|
|
|
/* read default values for BBP registers */
|
|
for (i = 0; i < 16; i++) {
|
|
val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
|
|
sc->bbp_prom[i].reg = val >> 8;
|
|
sc->bbp_prom[i].val = val & 0xff;
|
|
}
|
|
|
|
/* read Tx power for all b/g channels */
|
|
for (i = 0; i < 14 / 2; i++) {
|
|
val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
|
|
sc->txpow[i * 2] = val >> 8;
|
|
sc->txpow[i * 2 + 1] = val & 0xff;
|
|
}
|
|
}
|
|
|
|
int
|
|
rt2560_bbp_init(struct rt2560_softc *sc)
|
|
{
|
|
int i, ntries;
|
|
|
|
/* wait for BBP to be ready */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
if (ntries == 100) {
|
|
printf("%s: timeout waiting for BBP\n", sc->sc_dev.dv_xname);
|
|
return EIO;
|
|
}
|
|
|
|
/* initialize BBP registers to default values */
|
|
for (i = 0; i < nitems(rt2560_def_bbp); i++) {
|
|
rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
|
|
rt2560_def_bbp[i].val);
|
|
}
|
|
#if 0
|
|
/* initialize BBP registers to values stored in EEPROM */
|
|
for (i = 0; i < 16; i++) {
|
|
if (sc->bbp_prom[i].reg == 0xff)
|
|
continue;
|
|
rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
rt2560_init(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint32_t tmp;
|
|
int i;
|
|
|
|
/* for CardBus, power on the socket */
|
|
if (!(sc->sc_flags & RT2560_ENABLED)) {
|
|
if (sc->sc_enable != NULL && (*sc->sc_enable)(sc) != 0) {
|
|
printf("%s: could not enable device\n",
|
|
sc->sc_dev.dv_xname);
|
|
return EIO;
|
|
}
|
|
sc->sc_flags |= RT2560_ENABLED;
|
|
}
|
|
|
|
rt2560_stop(ifp, 0);
|
|
|
|
/* setup tx rings */
|
|
tmp = RT2560_PRIO_RING_COUNT << 24 |
|
|
RT2560_ATIM_RING_COUNT << 16 |
|
|
RT2560_TX_RING_COUNT << 8 |
|
|
RT2560_TX_DESC_SIZE;
|
|
|
|
/* rings _must_ be initialized in this _exact_ order! */
|
|
RAL_WRITE(sc, RT2560_TXCSR2, tmp);
|
|
RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
|
|
RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
|
|
RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
|
|
RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
|
|
|
|
/* setup rx ring */
|
|
tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
|
|
|
|
RAL_WRITE(sc, RT2560_RXCSR1, tmp);
|
|
RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
|
|
|
|
/* initialize MAC registers to default values */
|
|
for (i = 0; i < nitems(rt2560_def_mac); i++)
|
|
RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
|
|
|
|
IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl));
|
|
rt2560_set_macaddr(sc, ic->ic_myaddr);
|
|
|
|
/* set basic rate set (will be updated later) */
|
|
RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
|
|
|
|
rt2560_set_slottime(sc);
|
|
rt2560_update_plcp(sc);
|
|
rt2560_update_led(sc, 0, 0);
|
|
|
|
RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
|
|
RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
|
|
|
|
if (rt2560_bbp_init(sc) != 0) {
|
|
rt2560_stop(ifp, 1);
|
|
return EIO;
|
|
}
|
|
|
|
rt2560_set_txantenna(sc, 1);
|
|
rt2560_set_rxantenna(sc, 1);
|
|
|
|
/* set default BSS channel */
|
|
ic->ic_bss->ni_chan = ic->ic_ibss_chan;
|
|
rt2560_set_chan(sc, ic->ic_bss->ni_chan);
|
|
|
|
/* kick Rx */
|
|
tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
|
|
#ifndef IEEE80211_STA_ONLY
|
|
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
#endif
|
|
tmp |= RT2560_DROP_TODS;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RT2560_DROP_NOT_TO_ME;
|
|
}
|
|
RAL_WRITE(sc, RT2560_RXCSR0, tmp);
|
|
|
|
/* clear old FCS and Rx FIFO errors */
|
|
RAL_READ(sc, RT2560_CNT0);
|
|
RAL_READ(sc, RT2560_CNT4);
|
|
|
|
/* clear any pending interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
|
|
|
|
/* enable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
|
|
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifq_clr_oactive(&ifp->if_snd);
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_MONITOR)
|
|
ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
|
|
else
|
|
ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
rt2560_stop(struct ifnet *ifp, int disable)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
sc->sc_tx_timer = 0;
|
|
sc->sc_flags &= ~(RT2560_PRIO_OACTIVE|RT2560_DATA_OACTIVE);
|
|
ifp->if_timer = 0;
|
|
ifp->if_flags &= ~IFF_RUNNING;
|
|
ifq_clr_oactive(&ifp->if_snd);
|
|
|
|
ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */
|
|
|
|
/* abort Tx */
|
|
RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
|
|
|
|
/* disable Rx */
|
|
RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
|
|
|
|
/* reset ASIC (and thus, BBP) */
|
|
RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
|
|
RAL_WRITE(sc, RT2560_CSR1, 0);
|
|
|
|
/* disable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
|
|
|
|
/* clear any pending interrupt */
|
|
RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
|
|
|
|
/* reset Tx and Rx rings */
|
|
rt2560_reset_tx_ring(sc, &sc->txq);
|
|
rt2560_reset_tx_ring(sc, &sc->atimq);
|
|
rt2560_reset_tx_ring(sc, &sc->prioq);
|
|
rt2560_reset_tx_ring(sc, &sc->bcnq);
|
|
rt2560_reset_rx_ring(sc, &sc->rxq);
|
|
|
|
/* for CardBus, power down the socket */
|
|
if (disable && sc->sc_disable != NULL) {
|
|
if (sc->sc_flags & RT2560_ENABLED) {
|
|
(*sc->sc_disable)(sc);
|
|
sc->sc_flags &= ~RT2560_ENABLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
struct cfdriver ral_cd = {
|
|
NULL, "ral", DV_IFNET
|
|
};
|