2826 lines
72 KiB
C
2826 lines
72 KiB
C
/* $FreeBSD$ */
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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 <sys/param.h>
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#include <sys/sysctl.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/lock.h>
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#include <sys/mutex.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_ether.h>
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#include <dev/ral/rt2560reg.h>
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#include <dev/ral/rt2560var.h>
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#define RT2560_RSSI(sc, rssi) \
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((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \
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((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0)
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#define RAL_DEBUG
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#ifdef RAL_DEBUG
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#define DPRINTF(sc, fmt, ...) do { \
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if (sc->sc_debug > 0) \
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printf(fmt, __VA_ARGS__); \
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} while (0)
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#define DPRINTFN(sc, n, fmt, ...) do { \
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if (sc->sc_debug >= (n)) \
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printf(fmt, __VA_ARGS__); \
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} while (0)
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#else
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#define DPRINTF(sc, fmt, ...)
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#define DPRINTFN(sc, n, fmt, ...)
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#endif
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static struct ieee80211vap *rt2560_vap_create(struct ieee80211com *,
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const char [IFNAMSIZ], int, enum ieee80211_opmode,
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int, const uint8_t [IEEE80211_ADDR_LEN],
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const uint8_t [IEEE80211_ADDR_LEN]);
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static void rt2560_vap_delete(struct ieee80211vap *);
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static void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int,
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int);
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static int rt2560_alloc_tx_ring(struct rt2560_softc *,
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struct rt2560_tx_ring *, int);
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static void rt2560_reset_tx_ring(struct rt2560_softc *,
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struct rt2560_tx_ring *);
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static void rt2560_free_tx_ring(struct rt2560_softc *,
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struct rt2560_tx_ring *);
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static int rt2560_alloc_rx_ring(struct rt2560_softc *,
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struct rt2560_rx_ring *, int);
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static void rt2560_reset_rx_ring(struct rt2560_softc *,
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struct rt2560_rx_ring *);
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static void rt2560_free_rx_ring(struct rt2560_softc *,
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struct rt2560_rx_ring *);
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static int rt2560_newstate(struct ieee80211vap *,
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enum ieee80211_state, int);
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static uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
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static void rt2560_encryption_intr(struct rt2560_softc *);
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static void rt2560_tx_intr(struct rt2560_softc *);
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static void rt2560_prio_intr(struct rt2560_softc *);
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static void rt2560_decryption_intr(struct rt2560_softc *);
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static void rt2560_rx_intr(struct rt2560_softc *);
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static void rt2560_beacon_update(struct ieee80211vap *, int item);
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static void rt2560_beacon_expire(struct rt2560_softc *);
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static void rt2560_wakeup_expire(struct rt2560_softc *);
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static void rt2560_scan_start(struct ieee80211com *);
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static void rt2560_scan_end(struct ieee80211com *);
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static void rt2560_set_channel(struct ieee80211com *);
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static 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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static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
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struct ieee80211_node *);
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static void rt2560_start_locked(struct ifnet *);
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static void rt2560_start(struct ifnet *);
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static void rt2560_watchdog(void *);
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static int rt2560_ioctl(struct ifnet *, u_long, caddr_t);
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static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
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uint8_t);
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static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
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static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
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uint32_t);
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static void rt2560_set_chan(struct rt2560_softc *,
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struct ieee80211_channel *);
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#if 0
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static void rt2560_disable_rf_tune(struct rt2560_softc *);
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#endif
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static void rt2560_enable_tsf_sync(struct rt2560_softc *);
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static void rt2560_enable_tsf(struct rt2560_softc *);
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static void rt2560_update_plcp(struct rt2560_softc *);
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static void rt2560_update_slot(struct ifnet *);
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static void rt2560_set_basicrates(struct rt2560_softc *,
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const struct ieee80211_rateset *);
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static void rt2560_update_led(struct rt2560_softc *, int, int);
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static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
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static void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
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static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
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static void rt2560_update_promisc(struct ifnet *);
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static const char *rt2560_get_rf(int);
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static void rt2560_read_config(struct rt2560_softc *);
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static int rt2560_bbp_init(struct rt2560_softc *);
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static void rt2560_set_txantenna(struct rt2560_softc *, int);
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static void rt2560_set_rxantenna(struct rt2560_softc *, int);
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static void rt2560_init_locked(struct rt2560_softc *);
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static void rt2560_init(void *);
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static void rt2560_stop_locked(struct rt2560_softc *);
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static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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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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static const struct {
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uint8_t chan;
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uint32_t r1, r2, r4;
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} rt2560_rf5222[] = {
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RT2560_RF5222
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};
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int
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rt2560_attach(device_t dev, int id)
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{
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struct rt2560_softc *sc = device_get_softc(dev);
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struct ieee80211com *ic;
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struct ifnet *ifp;
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int error;
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uint8_t bands;
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uint8_t macaddr[IEEE80211_ADDR_LEN];
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sc->sc_dev = dev;
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mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
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MTX_DEF | MTX_RECURSE);
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callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
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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 RF rev. no and various other things from EEPROM */
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rt2560_read_config(sc);
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device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
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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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device_printf(sc->sc_dev, "could not allocate Tx ring\n");
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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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device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
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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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device_printf(sc->sc_dev, "could not allocate Prio ring\n");
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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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device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
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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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device_printf(sc->sc_dev, "could not allocate Rx ring\n");
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goto fail5;
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}
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ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
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if (ifp == NULL) {
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device_printf(sc->sc_dev, "can not if_alloc()\n");
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goto fail6;
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}
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ic = ifp->if_l2com;
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/* retrieve MAC address */
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rt2560_get_macaddr(sc, macaddr);
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ifp->if_softc = sc;
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if_initname(ifp, device_get_name(dev), device_get_unit(dev));
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
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ifp->if_init = rt2560_init;
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ifp->if_ioctl = rt2560_ioctl;
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ifp->if_start = rt2560_start;
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IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
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ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
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IFQ_SET_READY(&ifp->if_snd);
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ic->ic_ifp = ifp;
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ic->ic_opmode = IEEE80211_M_STA;
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ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
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/* set device capabilities */
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ic->ic_caps =
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IEEE80211_C_STA /* station mode */
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| IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
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| IEEE80211_C_HOSTAP /* hostap mode */
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| IEEE80211_C_MONITOR /* monitor mode */
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| IEEE80211_C_AHDEMO /* adhoc demo mode */
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| IEEE80211_C_WDS /* 4-address traffic works */
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| IEEE80211_C_MBSS /* mesh point link mode */
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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_WPA /* capable of WPA1+WPA2 */
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| IEEE80211_C_BGSCAN /* capable of bg scanning */
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#ifdef notyet
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| IEEE80211_C_TXFRAG /* handle tx frags */
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#endif
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;
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bands = 0;
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setbit(&bands, IEEE80211_MODE_11B);
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setbit(&bands, IEEE80211_MODE_11G);
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if (sc->rf_rev == RT2560_RF_5222)
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setbit(&bands, IEEE80211_MODE_11A);
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ieee80211_init_channels(ic, NULL, &bands);
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ieee80211_ifattach(ic, macaddr);
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ic->ic_raw_xmit = rt2560_raw_xmit;
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ic->ic_updateslot = rt2560_update_slot;
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ic->ic_update_promisc = rt2560_update_promisc;
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ic->ic_scan_start = rt2560_scan_start;
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ic->ic_scan_end = rt2560_scan_end;
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ic->ic_set_channel = rt2560_set_channel;
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ic->ic_vap_create = rt2560_vap_create;
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ic->ic_vap_delete = rt2560_vap_delete;
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ieee80211_radiotap_attach(ic,
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&sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
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RT2560_TX_RADIOTAP_PRESENT,
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&sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
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RT2560_RX_RADIOTAP_PRESENT);
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/*
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* Add a few sysctl knobs.
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*/
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#ifdef RAL_DEBUG
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SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
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SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
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"debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
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#endif
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SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
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SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
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"txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
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SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
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SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
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"rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
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if (bootverbose)
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ieee80211_announce(ic);
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return 0;
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fail6: rt2560_free_rx_ring(sc, &sc->rxq);
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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: mtx_destroy(&sc->sc_mtx);
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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_ifp;
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struct ieee80211com *ic = ifp->if_l2com;
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rt2560_stop(sc);
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ieee80211_ifdetach(ic);
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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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if_free(ifp);
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mtx_destroy(&sc->sc_mtx);
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return 0;
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}
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|
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static struct ieee80211vap *
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rt2560_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
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enum ieee80211_opmode opmode, int flags,
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const uint8_t bssid[IEEE80211_ADDR_LEN],
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const uint8_t mac[IEEE80211_ADDR_LEN])
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{
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struct ifnet *ifp = ic->ic_ifp;
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struct rt2560_vap *rvp;
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struct ieee80211vap *vap;
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|
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switch (opmode) {
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case IEEE80211_M_STA:
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case IEEE80211_M_IBSS:
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case IEEE80211_M_AHDEMO:
|
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case IEEE80211_M_MONITOR:
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case IEEE80211_M_HOSTAP:
|
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case IEEE80211_M_MBSS:
|
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/* XXXRP: TBD */
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if (!TAILQ_EMPTY(&ic->ic_vaps)) {
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if_printf(ifp, "only 1 vap supported\n");
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return NULL;
|
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}
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if (opmode == IEEE80211_M_STA)
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flags |= IEEE80211_CLONE_NOBEACONS;
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break;
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case IEEE80211_M_WDS:
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if (TAILQ_EMPTY(&ic->ic_vaps) ||
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ic->ic_opmode != IEEE80211_M_HOSTAP) {
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if_printf(ifp, "wds only supported in ap mode\n");
|
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return NULL;
|
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}
|
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/*
|
|
* Silently remove any request for a unique
|
|
* bssid; WDS vap's always share the local
|
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* mac address.
|
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*/
|
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flags &= ~IEEE80211_CLONE_BSSID;
|
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break;
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default:
|
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if_printf(ifp, "unknown opmode %d\n", opmode);
|
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return NULL;
|
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}
|
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rvp = (struct rt2560_vap *) malloc(sizeof(struct rt2560_vap),
|
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M_80211_VAP, M_NOWAIT | M_ZERO);
|
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if (rvp == NULL)
|
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return NULL;
|
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vap = &rvp->ral_vap;
|
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ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
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|
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/* override state transition machine */
|
|
rvp->ral_newstate = vap->iv_newstate;
|
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vap->iv_newstate = rt2560_newstate;
|
|
vap->iv_update_beacon = rt2560_beacon_update;
|
|
|
|
ieee80211_ratectl_init(vap);
|
|
/* complete setup */
|
|
ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
|
|
if (TAILQ_FIRST(&ic->ic_vaps) == vap)
|
|
ic->ic_opmode = opmode;
|
|
return vap;
|
|
}
|
|
|
|
static void
|
|
rt2560_vap_delete(struct ieee80211vap *vap)
|
|
{
|
|
struct rt2560_vap *rvp = RT2560_VAP(vap);
|
|
|
|
ieee80211_ratectl_deinit(vap);
|
|
ieee80211_vap_detach(vap);
|
|
free(rvp, M_80211_VAP);
|
|
}
|
|
|
|
void
|
|
rt2560_resume(void *xsc)
|
|
{
|
|
struct rt2560_softc *sc = xsc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
if (ifp->if_flags & IFF_UP)
|
|
rt2560_init(sc);
|
|
}
|
|
|
|
static void
|
|
rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
if (error != 0)
|
|
return;
|
|
|
|
KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
|
|
|
|
*(bus_addr_t *)arg = segs[0].ds_addr;
|
|
}
|
|
|
|
static int
|
|
rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
|
|
int count)
|
|
{
|
|
int i, error;
|
|
|
|
ring->count = count;
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_encrypt = ring->next_encrypt = 0;
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
|
|
0, NULL, NULL, &ring->desc_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create desc DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not allocate DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
|
|
count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
|
|
0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not load desc DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
ring->data = malloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
|
|
M_NOWAIT | M_ZERO);
|
|
if (ring->data == NULL) {
|
|
device_printf(sc->sc_dev, "could not allocate soft data\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, NULL, NULL,
|
|
&ring->data_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create data DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < count; i++) {
|
|
error = bus_dmamap_create(ring->data_dmat, 0,
|
|
&ring->data[i].map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create DMA map\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: rt2560_free_tx_ring(sc, ring);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
|
|
{
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < ring->count; i++) {
|
|
desc = &ring->desc[i];
|
|
data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(ring->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->data_dmat, data->map);
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
}
|
|
|
|
if (data->ni != NULL) {
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
}
|
|
|
|
desc->flags = 0;
|
|
}
|
|
|
|
bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
ring->queued = 0;
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_encrypt = ring->next_encrypt = 0;
|
|
}
|
|
|
|
static void
|
|
rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
|
|
{
|
|
struct rt2560_tx_data *data;
|
|
int i;
|
|
|
|
if (ring->desc != NULL) {
|
|
bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
|
|
bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
|
|
}
|
|
|
|
if (ring->desc_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->desc_dmat);
|
|
|
|
if (ring->data != NULL) {
|
|
for (i = 0; i < ring->count; i++) {
|
|
data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(ring->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->data_dmat, data->map);
|
|
m_freem(data->m);
|
|
}
|
|
|
|
if (data->ni != NULL)
|
|
ieee80211_free_node(data->ni);
|
|
|
|
if (data->map != NULL)
|
|
bus_dmamap_destroy(ring->data_dmat, data->map);
|
|
}
|
|
|
|
free(ring->data, M_DEVBUF);
|
|
}
|
|
|
|
if (ring->data_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->data_dmat);
|
|
}
|
|
|
|
static int
|
|
rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
|
|
int count)
|
|
{
|
|
struct rt2560_rx_desc *desc;
|
|
struct rt2560_rx_data *data;
|
|
bus_addr_t physaddr;
|
|
int i, error;
|
|
|
|
ring->count = count;
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_decrypt = 0;
|
|
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
|
|
count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
|
|
0, NULL, NULL, &ring->desc_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create desc DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not allocate DMA memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
|
|
count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
|
|
0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not load desc DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
ring->data = malloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
|
|
M_NOWAIT | M_ZERO);
|
|
if (ring->data == NULL) {
|
|
device_printf(sc->sc_dev, "could not allocate soft data\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Pre-allocate Rx buffers and populate Rx ring.
|
|
*/
|
|
error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
|
|
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
|
|
1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create data DMA tag\n");
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < count; i++) {
|
|
desc = &sc->rxq.desc[i];
|
|
data = &sc->rxq.data[i];
|
|
|
|
error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not create DMA map\n");
|
|
goto fail;
|
|
}
|
|
|
|
data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
|
|
if (data->m == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate rx mbuf\n");
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_dmamap_load(ring->data_dmat, data->map,
|
|
mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
|
|
&physaddr, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not load rx buf DMA map");
|
|
goto fail;
|
|
}
|
|
|
|
desc->flags = htole32(RT2560_RX_BUSY);
|
|
desc->physaddr = htole32(physaddr);
|
|
}
|
|
|
|
bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
return 0;
|
|
|
|
fail: rt2560_free_rx_ring(sc, ring);
|
|
return error;
|
|
}
|
|
|
|
static 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(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
|
|
|
|
ring->cur = ring->next = 0;
|
|
ring->cur_decrypt = 0;
|
|
}
|
|
|
|
static void
|
|
rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
|
|
{
|
|
struct rt2560_rx_data *data;
|
|
int i;
|
|
|
|
if (ring->desc != NULL) {
|
|
bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
|
|
bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
|
|
}
|
|
|
|
if (ring->desc_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->desc_dmat);
|
|
|
|
if (ring->data != NULL) {
|
|
for (i = 0; i < ring->count; i++) {
|
|
data = &ring->data[i];
|
|
|
|
if (data->m != NULL) {
|
|
bus_dmamap_sync(ring->data_dmat, data->map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(ring->data_dmat, data->map);
|
|
m_freem(data->m);
|
|
}
|
|
|
|
if (data->map != NULL)
|
|
bus_dmamap_destroy(ring->data_dmat, data->map);
|
|
}
|
|
|
|
free(ring->data, M_DEVBUF);
|
|
}
|
|
|
|
if (ring->data_dmat != NULL)
|
|
bus_dma_tag_destroy(ring->data_dmat);
|
|
}
|
|
|
|
static int
|
|
rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct rt2560_vap *rvp = RT2560_VAP(vap);
|
|
struct ifnet *ifp = vap->iv_ic->ic_ifp;
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
int error;
|
|
|
|
if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
|
|
/* abort TSF synchronization */
|
|
RAL_WRITE(sc, RT2560_CSR14, 0);
|
|
|
|
/* turn association led off */
|
|
rt2560_update_led(sc, 0, 0);
|
|
}
|
|
|
|
error = rvp->ral_newstate(vap, nstate, arg);
|
|
|
|
if (error == 0 && nstate == IEEE80211_S_RUN) {
|
|
struct ieee80211_node *ni = vap->iv_bss;
|
|
struct mbuf *m;
|
|
|
|
if (vap->iv_opmode != IEEE80211_M_MONITOR) {
|
|
rt2560_update_plcp(sc);
|
|
rt2560_set_basicrates(sc, &ni->ni_rates);
|
|
rt2560_set_bssid(sc, ni->ni_bssid);
|
|
}
|
|
|
|
if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
|
|
vap->iv_opmode == IEEE80211_M_IBSS ||
|
|
vap->iv_opmode == IEEE80211_M_MBSS) {
|
|
m = ieee80211_beacon_alloc(ni, &rvp->ral_bo);
|
|
if (m == NULL) {
|
|
if_printf(ifp, "could not allocate beacon\n");
|
|
return ENOBUFS;
|
|
}
|
|
ieee80211_ref_node(ni);
|
|
error = rt2560_tx_bcn(sc, m, ni);
|
|
if (error != 0)
|
|
return error;
|
|
}
|
|
|
|
/* turn assocation led on */
|
|
rt2560_update_led(sc, 1, 0);
|
|
|
|
if (vap->iv_opmode != IEEE80211_M_MONITOR)
|
|
rt2560_enable_tsf_sync(sc);
|
|
else
|
|
rt2560_enable_tsf(sc);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
|
|
* 93C66).
|
|
*/
|
|
static 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.
|
|
*/
|
|
static void
|
|
rt2560_encryption_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct rt2560_tx_desc *desc;
|
|
int hw;
|
|
|
|
/* retrieve last descriptor index processed by cipher engine */
|
|
hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
|
|
hw /= RT2560_TX_DESC_SIZE;
|
|
|
|
bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
while (sc->txq.next_encrypt != hw) {
|
|
if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
|
|
printf("hw encrypt %d, cur_encrypt %d\n", hw,
|
|
sc->txq.cur_encrypt);
|
|
break;
|
|
}
|
|
|
|
desc = &sc->txq.desc[sc->txq.next_encrypt];
|
|
|
|
if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
|
|
(le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
|
|
break;
|
|
|
|
/* for TKIP, swap eiv field to fix a bug in ASIC */
|
|
if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
|
|
RT2560_TX_CIPHER_TKIP)
|
|
desc->eiv = bswap32(desc->eiv);
|
|
|
|
/* mark the frame ready for transmission */
|
|
desc->flags |= htole32(RT2560_TX_VALID);
|
|
desc->flags |= htole32(RT2560_TX_BUSY);
|
|
|
|
DPRINTFN(sc, 15, "encryption done idx=%u\n",
|
|
sc->txq.next_encrypt);
|
|
|
|
sc->txq.next_encrypt =
|
|
(sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
/* kick Tx */
|
|
RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
|
|
}
|
|
|
|
static void
|
|
rt2560_tx_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct mbuf *m;
|
|
uint32_t flags;
|
|
int retrycnt;
|
|
struct ieee80211vap *vap;
|
|
struct ieee80211_node *ni;
|
|
|
|
bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
for (;;) {
|
|
desc = &sc->txq.desc[sc->txq.next];
|
|
data = &sc->txq.data[sc->txq.next];
|
|
|
|
flags = le32toh(desc->flags);
|
|
if ((flags & RT2560_TX_BUSY) ||
|
|
(flags & RT2560_TX_CIPHER_BUSY) ||
|
|
!(flags & RT2560_TX_VALID))
|
|
break;
|
|
|
|
m = data->m;
|
|
ni = data->ni;
|
|
vap = ni->ni_vap;
|
|
|
|
switch (flags & RT2560_TX_RESULT_MASK) {
|
|
case RT2560_TX_SUCCESS:
|
|
retrycnt = 0;
|
|
|
|
DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
|
|
if (data->rix != IEEE80211_FIXED_RATE_NONE)
|
|
ieee80211_ratectl_tx_complete(vap, ni,
|
|
IEEE80211_RATECTL_TX_SUCCESS,
|
|
&retrycnt, NULL);
|
|
ifp->if_opackets++;
|
|
break;
|
|
|
|
case RT2560_TX_SUCCESS_RETRY:
|
|
retrycnt = RT2560_TX_RETRYCNT(flags);
|
|
|
|
DPRINTFN(sc, 9, "data frame sent after %u retries\n",
|
|
retrycnt);
|
|
if (data->rix != IEEE80211_FIXED_RATE_NONE)
|
|
ieee80211_ratectl_tx_complete(vap, ni,
|
|
IEEE80211_RATECTL_TX_SUCCESS,
|
|
&retrycnt, NULL);
|
|
ifp->if_opackets++;
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_RETRY:
|
|
retrycnt = RT2560_TX_RETRYCNT(flags);
|
|
|
|
DPRINTFN(sc, 9, "data frame failed after %d retries\n",
|
|
retrycnt);
|
|
if (data->rix != IEEE80211_FIXED_RATE_NONE)
|
|
ieee80211_ratectl_tx_complete(vap, ni,
|
|
IEEE80211_RATECTL_TX_FAILURE,
|
|
&retrycnt, NULL);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_INVALID:
|
|
case RT2560_TX_FAIL_OTHER:
|
|
default:
|
|
device_printf(sc->sc_dev, "sending data frame failed "
|
|
"0x%08x\n", flags);
|
|
ifp->if_oerrors++;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->txq.data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->txq.data_dmat, data->map);
|
|
m_freem(m);
|
|
data->m = NULL;
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
|
|
/* descriptor is no longer valid */
|
|
desc->flags &= ~htole32(RT2560_TX_VALID);
|
|
|
|
DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
|
|
|
|
sc->txq.queued--;
|
|
sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
if (sc->prioq.queued == 0 && sc->txq.queued == 0)
|
|
sc->sc_tx_timer = 0;
|
|
|
|
if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) {
|
|
sc->sc_flags &= ~RT2560_F_DATA_OACTIVE;
|
|
if ((sc->sc_flags &
|
|
(RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
rt2560_start_locked(ifp);
|
|
}
|
|
}
|
|
|
|
static void
|
|
rt2560_prio_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
int flags;
|
|
|
|
bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
for (;;) {
|
|
desc = &sc->prioq.desc[sc->prioq.next];
|
|
data = &sc->prioq.data[sc->prioq.next];
|
|
|
|
flags = le32toh(desc->flags);
|
|
if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
|
|
break;
|
|
|
|
switch (flags & RT2560_TX_RESULT_MASK) {
|
|
case RT2560_TX_SUCCESS:
|
|
DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
|
|
break;
|
|
|
|
case RT2560_TX_SUCCESS_RETRY:
|
|
DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
|
|
(flags >> 5) & 0x7);
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_RETRY:
|
|
DPRINTFN(sc, 9, "%s\n",
|
|
"sending mgt frame failed (too much retries)");
|
|
break;
|
|
|
|
case RT2560_TX_FAIL_INVALID:
|
|
case RT2560_TX_FAIL_OTHER:
|
|
default:
|
|
device_printf(sc->sc_dev, "sending mgt frame failed "
|
|
"0x%08x\n", flags);
|
|
break;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->prioq.data_dmat, data->map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->prioq.data_dmat, data->map);
|
|
|
|
m = data->m;
|
|
data->m = NULL;
|
|
ni = data->ni;
|
|
data->ni = NULL;
|
|
|
|
/* descriptor is no longer valid */
|
|
desc->flags &= ~htole32(RT2560_TX_VALID);
|
|
|
|
DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
|
|
|
|
sc->prioq.queued--;
|
|
sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
|
|
|
|
if (m->m_flags & M_TXCB)
|
|
ieee80211_process_callback(ni, m,
|
|
(flags & RT2560_TX_RESULT_MASK) &~
|
|
(RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
}
|
|
|
|
bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
if (sc->prioq.queued == 0 && sc->txq.queued == 0)
|
|
sc->sc_tx_timer = 0;
|
|
|
|
if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) {
|
|
sc->sc_flags &= ~RT2560_F_PRIO_OACTIVE;
|
|
if ((sc->sc_flags &
|
|
(RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
rt2560_start_locked(ifp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Some frames were processed by the hardware cipher engine and are ready for
|
|
* handoff to the IEEE802.11 layer.
|
|
*/
|
|
static void
|
|
rt2560_decryption_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct rt2560_rx_desc *desc;
|
|
struct rt2560_rx_data *data;
|
|
bus_addr_t physaddr;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *mnew, *m;
|
|
int hw, error;
|
|
int8_t rssi, nf;
|
|
|
|
/* retrieve last decriptor index processed by cipher engine */
|
|
hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
|
|
hw /= RT2560_RX_DESC_SIZE;
|
|
|
|
bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
for (; sc->rxq.cur_decrypt != hw;) {
|
|
desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
|
|
data = &sc->rxq.data[sc->rxq.cur_decrypt];
|
|
|
|
if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
|
|
(le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
|
|
break;
|
|
|
|
if (data->drop) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
|
|
(le32toh(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.
|
|
*/
|
|
mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
|
|
if (mnew == NULL) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
bus_dmamap_unload(sc->rxq.data_dmat, data->map);
|
|
|
|
error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
|
|
mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
|
|
&physaddr, 0);
|
|
if (error != 0) {
|
|
m_freem(mnew);
|
|
|
|
/* try to reload the old mbuf */
|
|
error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
|
|
mtod(data->m, void *), MCLBYTES,
|
|
rt2560_dma_map_addr, &physaddr, 0);
|
|
if (error != 0) {
|
|
/* very unlikely that it will fail... */
|
|
panic("%s: could not load old rx mbuf",
|
|
device_get_name(sc->sc_dev));
|
|
}
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
/*
|
|
* New mbuf successfully loaded, update Rx ring and continue
|
|
* processing.
|
|
*/
|
|
m = data->m;
|
|
data->m = mnew;
|
|
desc->physaddr = htole32(physaddr);
|
|
|
|
/* finalize mbuf */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len =
|
|
(le32toh(desc->flags) >> 16) & 0xfff;
|
|
|
|
rssi = RT2560_RSSI(sc, desc->rssi);
|
|
nf = RT2560_NOISE_FLOOR;
|
|
if (ieee80211_radiotap_active(ic)) {
|
|
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 = ieee80211_plcp2rate(desc->rate,
|
|
(desc->flags & htole32(RT2560_RX_OFDM)) ?
|
|
IEEE80211_T_OFDM : IEEE80211_T_CCK);
|
|
tap->wr_antenna = sc->rx_ant;
|
|
tap->wr_antsignal = nf + rssi;
|
|
tap->wr_antnoise = nf;
|
|
}
|
|
|
|
sc->sc_flags |= RT2560_F_INPUT_RUNNING;
|
|
RAL_UNLOCK(sc);
|
|
wh = mtod(m, struct ieee80211_frame *);
|
|
ni = ieee80211_find_rxnode(ic,
|
|
(struct ieee80211_frame_min *)wh);
|
|
if (ni != NULL) {
|
|
(void) ieee80211_input(ni, m, rssi, nf);
|
|
ieee80211_free_node(ni);
|
|
} else
|
|
(void) ieee80211_input_all(ic, m, rssi, nf);
|
|
|
|
RAL_LOCK(sc);
|
|
sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
|
|
skip: desc->flags = htole32(RT2560_RX_BUSY);
|
|
|
|
DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
|
|
|
|
sc->rxq.cur_decrypt =
|
|
(sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
/*
|
|
* Some frames were received. Pass them to the hardware cipher engine before
|
|
* sending them to the 802.11 layer.
|
|
*/
|
|
static void
|
|
rt2560_rx_intr(struct rt2560_softc *sc)
|
|
{
|
|
struct rt2560_rx_desc *desc;
|
|
struct rt2560_rx_data *data;
|
|
|
|
bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
|
|
for (;;) {
|
|
desc = &sc->rxq.desc[sc->rxq.cur];
|
|
data = &sc->rxq.data[sc->rxq.cur];
|
|
|
|
if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
|
|
(le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
|
|
break;
|
|
|
|
data->drop = 0;
|
|
|
|
if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
|
|
(le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
|
|
/*
|
|
* This should not happen since we did not request
|
|
* to receive those frames when we filled RXCSR0.
|
|
*/
|
|
DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
|
|
le32toh(desc->flags));
|
|
data->drop = 1;
|
|
}
|
|
|
|
if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
|
|
DPRINTFN(sc, 5, "%s\n", "bad length");
|
|
data->drop = 1;
|
|
}
|
|
|
|
/* mark the frame for decryption */
|
|
desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
|
|
|
|
DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
|
|
|
|
sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
|
|
}
|
|
|
|
bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
/* kick decrypt */
|
|
RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
|
|
}
|
|
|
|
static void
|
|
rt2560_beacon_update(struct ieee80211vap *vap, int item)
|
|
{
|
|
struct rt2560_vap *rvp = RT2560_VAP(vap);
|
|
struct ieee80211_beacon_offsets *bo = &rvp->ral_bo;
|
|
|
|
setbit(bo->bo_flags, item);
|
|
}
|
|
|
|
/*
|
|
* This function is called periodically in IBSS mode when a new beacon must be
|
|
* sent out.
|
|
*/
|
|
static void
|
|
rt2560_beacon_expire(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
struct rt2560_vap *rvp = RT2560_VAP(vap);
|
|
struct rt2560_tx_data *data;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_IBSS &&
|
|
ic->ic_opmode != IEEE80211_M_HOSTAP &&
|
|
ic->ic_opmode != IEEE80211_M_MBSS)
|
|
return;
|
|
|
|
data = &sc->bcnq.data[sc->bcnq.next];
|
|
/*
|
|
* Don't send beacon if bsschan isn't set
|
|
*/
|
|
if (data->ni == NULL)
|
|
return;
|
|
|
|
bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
|
|
|
|
/* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
|
|
ieee80211_beacon_update(data->ni, &rvp->ral_bo, data->m, 1);
|
|
|
|
rt2560_tx_bcn(sc, data->m, data->ni);
|
|
|
|
DPRINTFN(sc, 15, "%s", "beacon expired\n");
|
|
|
|
sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
rt2560_wakeup_expire(struct rt2560_softc *sc)
|
|
{
|
|
DPRINTFN(sc, 2, "%s", "wakeup expired\n");
|
|
}
|
|
|
|
void
|
|
rt2560_intr(void *arg)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
uint32_t r;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
/* disable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
|
|
|
|
/* don't re-enable interrupts if we're shutting down */
|
|
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
RAL_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
r = RAL_READ(sc, RT2560_CSR7);
|
|
RAL_WRITE(sc, RT2560_CSR7, r);
|
|
|
|
if (r & RT2560_BEACON_EXPIRE)
|
|
rt2560_beacon_expire(sc);
|
|
|
|
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);
|
|
rt2560_encryption_intr(sc);
|
|
}
|
|
|
|
/* re-enable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
|
|
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
#define RAL_SIFS 10 /* us */
|
|
|
|
#define RT2560_TXRX_TURNAROUND 10 /* us */
|
|
|
|
static uint8_t
|
|
rt2560_plcp_signal(int rate)
|
|
{
|
|
switch (rate) {
|
|
/* 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;
|
|
|
|
/* CCK rates (NB: not IEEE std, device-specific) */
|
|
case 2: return 0x0;
|
|
case 4: return 0x1;
|
|
case 11: return 0x2;
|
|
case 22: return 0x3;
|
|
}
|
|
return 0xff; /* XXX unsupported/unknown rate */
|
|
}
|
|
|
|
static 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 ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint16_t plcp_length;
|
|
int remainder;
|
|
|
|
desc->flags = htole32(flags);
|
|
desc->flags |= htole32(len << 16);
|
|
|
|
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 (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
|
|
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;
|
|
}
|
|
|
|
if (!encrypt)
|
|
desc->flags |= htole32(RT2560_TX_VALID);
|
|
desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
|
|
: htole32(RT2560_TX_BUSY);
|
|
}
|
|
|
|
static int
|
|
rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
bus_dma_segment_t segs[RT2560_MAX_SCATTER];
|
|
int nsegs, rate, error;
|
|
|
|
desc = &sc->bcnq.desc[sc->bcnq.cur];
|
|
data = &sc->bcnq.data[sc->bcnq.cur];
|
|
|
|
/* XXX maybe a separate beacon rate? */
|
|
rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->bcnq.data_dmat, data->map, m0,
|
|
segs, &nsegs, BUS_DMA_NOWAIT);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
|
|
error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
if (ieee80211_radiotap_active_vap(vap)) {
|
|
struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
ieee80211_radiotap_tx(vap, m0);
|
|
}
|
|
|
|
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, segs->ds_addr);
|
|
|
|
DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
|
|
m0->m_pkthdr.len, sc->bcnq.cur, rate);
|
|
|
|
bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
bus_dma_segment_t segs[RT2560_MAX_SCATTER];
|
|
uint16_t dur;
|
|
uint32_t flags = 0;
|
|
int nsegs, rate, error;
|
|
|
|
desc = &sc->prioq.desc[sc->prioq.cur];
|
|
data = &sc->prioq.data[sc->prioq.cur];
|
|
|
|
rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
|
|
k = ieee80211_crypto_encap(ni, m0);
|
|
if (k == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
}
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
|
|
segs, &nsegs, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
|
|
error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
if (ieee80211_radiotap_active_vap(vap)) {
|
|
struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
ieee80211_radiotap_tx(vap, m0);
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
/* management frames are not taken into account for amrr */
|
|
data->rix = IEEE80211_FIXED_RATE_NONE;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RT2560_TX_ACK;
|
|
|
|
dur = ieee80211_ack_duration(ic->ic_rt,
|
|
rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
|
|
/* tell hardware to add timestamp for probe responses */
|
|
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
|
|
IEEE80211_FC0_TYPE_MGT &&
|
|
(wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
|
|
IEEE80211_FC0_SUBTYPE_PROBE_RESP)
|
|
flags |= RT2560_TX_TIMESTAMP;
|
|
}
|
|
|
|
rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
|
|
segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(sc, 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;
|
|
}
|
|
|
|
static int
|
|
rt2560_sendprot(struct rt2560_softc *sc,
|
|
const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
|
|
{
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
const struct ieee80211_frame *wh;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct mbuf *mprot;
|
|
int protrate, ackrate, pktlen, flags, isshort, error;
|
|
uint16_t dur;
|
|
bus_dma_segment_t segs[RT2560_MAX_SCATTER];
|
|
int nsegs;
|
|
|
|
KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
|
|
("protection %d", prot));
|
|
|
|
wh = mtod(m, const struct ieee80211_frame *);
|
|
pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
|
|
|
|
protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
|
|
ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
|
|
|
|
isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
|
|
dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
|
|
+ ieee80211_ack_duration(ic->ic_rt, rate, isshort);
|
|
flags = RT2560_TX_MORE_FRAG;
|
|
if (prot == IEEE80211_PROT_RTSCTS) {
|
|
/* NB: CTS is the same size as an ACK */
|
|
dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
|
|
flags |= RT2560_TX_ACK;
|
|
mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
|
|
} else {
|
|
mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
|
|
}
|
|
if (mprot == NULL) {
|
|
/* XXX stat + msg */
|
|
return ENOBUFS;
|
|
}
|
|
|
|
desc = &sc->txq.desc[sc->txq.cur_encrypt];
|
|
data = &sc->txq.data[sc->txq.cur_encrypt];
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
|
|
mprot, segs, &nsegs, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not map mbuf (error %d)\n", error);
|
|
m_freem(mprot);
|
|
return error;
|
|
}
|
|
|
|
data->m = mprot;
|
|
data->ni = ieee80211_ref_node(ni);
|
|
/* ctl frames are not taken into account for amrr */
|
|
data->rix = IEEE80211_FIXED_RATE_NONE;
|
|
|
|
rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
|
|
segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->txq.data_dmat, data->map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
sc->txq.queued++;
|
|
sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
bus_dma_segment_t segs[RT2560_MAX_SCATTER];
|
|
uint32_t flags;
|
|
int nsegs, rate, error;
|
|
|
|
desc = &sc->prioq.desc[sc->prioq.cur];
|
|
data = &sc->prioq.data[sc->prioq.cur];
|
|
|
|
rate = params->ibp_rate0;
|
|
if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
|
|
/* XXX fall back to mcast/mgmt rate? */
|
|
m_freem(m0);
|
|
return EINVAL;
|
|
}
|
|
|
|
flags = 0;
|
|
if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
|
|
flags |= RT2560_TX_ACK;
|
|
if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
|
|
error = rt2560_sendprot(sc, m0, ni,
|
|
params->ibp_flags & IEEE80211_BPF_RTS ?
|
|
IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
|
|
rate);
|
|
if (error) {
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
|
|
}
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
|
|
segs, &nsegs, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
|
|
error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
if (ieee80211_radiotap_active_vap(vap)) {
|
|
struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
ieee80211_radiotap_tx(ni->ni_vap, m0);
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
/* XXX need to setup descriptor ourself */
|
|
rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
|
|
rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
|
|
segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(sc, 10, "sending raw 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;
|
|
}
|
|
|
|
static int
|
|
rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
|
|
struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct rt2560_tx_desc *desc;
|
|
struct rt2560_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
const struct ieee80211_txparam *tp;
|
|
struct ieee80211_key *k;
|
|
struct mbuf *mnew;
|
|
bus_dma_segment_t segs[RT2560_MAX_SCATTER];
|
|
uint16_t dur;
|
|
uint32_t flags;
|
|
int nsegs, rate, error;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
|
|
if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
rate = tp->mcastrate;
|
|
} else if (m0->m_flags & M_EAPOL) {
|
|
rate = tp->mgmtrate;
|
|
} else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
|
|
rate = tp->ucastrate;
|
|
} else {
|
|
(void) ieee80211_ratectl_rate(ni, NULL, 0);
|
|
rate = ni->ni_txrate;
|
|
}
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
|
|
k = ieee80211_crypto_encap(ni, m0);
|
|
if (k == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
|
|
/* packet header may have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
flags = 0;
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
int prot = IEEE80211_PROT_NONE;
|
|
if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
|
|
prot = IEEE80211_PROT_RTSCTS;
|
|
else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
|
|
ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
|
|
prot = ic->ic_protmode;
|
|
if (prot != IEEE80211_PROT_NONE) {
|
|
error = rt2560_sendprot(sc, m0, ni, prot, rate);
|
|
if (error) {
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
|
|
}
|
|
}
|
|
|
|
data = &sc->txq.data[sc->txq.cur_encrypt];
|
|
desc = &sc->txq.desc[sc->txq.cur_encrypt];
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, m0,
|
|
segs, &nsegs, 0);
|
|
if (error != 0 && error != EFBIG) {
|
|
device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
|
|
error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
if (error != 0) {
|
|
mnew = m_defrag(m0, M_NOWAIT);
|
|
if (mnew == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not defragment mbuf\n");
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
m0 = mnew;
|
|
|
|
error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
|
|
m0, segs, &nsegs, 0);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not map mbuf (error %d)\n", error);
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
/* packet header may have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
if (ieee80211_radiotap_active_vap(vap)) {
|
|
struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
ieee80211_radiotap_tx(vap, m0);
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
/* remember link conditions for rate adaptation algorithm */
|
|
if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
|
|
data->rix = ni->ni_txrate;
|
|
/* XXX probably need last rssi value and not avg */
|
|
data->rssi = ic->ic_node_getrssi(ni);
|
|
} else
|
|
data->rix = IEEE80211_FIXED_RATE_NONE;
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RT2560_TX_ACK;
|
|
|
|
dur = ieee80211_ack_duration(ic->ic_rt,
|
|
rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
}
|
|
|
|
rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
|
|
segs->ds_addr);
|
|
|
|
bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
|
|
DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
|
|
m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
|
|
|
|
/* kick encrypt */
|
|
sc->txq.queued++;
|
|
sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
|
|
RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
rt2560_start_locked(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct mbuf *m;
|
|
struct ieee80211_node *ni;
|
|
|
|
RAL_LOCK_ASSERT(sc);
|
|
|
|
for (;;) {
|
|
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
|
|
if (m == NULL)
|
|
break;
|
|
if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
|
|
IFQ_DRV_PREPEND(&ifp->if_snd, m);
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
sc->sc_flags |= RT2560_F_DATA_OACTIVE;
|
|
break;
|
|
}
|
|
ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
|
|
if (rt2560_tx_data(sc, m, ni) != 0) {
|
|
ieee80211_free_node(ni);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
|
|
sc->sc_tx_timer = 5;
|
|
}
|
|
}
|
|
|
|
static void
|
|
rt2560_start(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
|
|
RAL_LOCK(sc);
|
|
rt2560_start_locked(ifp);
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
rt2560_watchdog(void *arg)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
RAL_LOCK_ASSERT(sc);
|
|
|
|
KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running"));
|
|
|
|
if (sc->sc_invalid) /* card ejected */
|
|
return;
|
|
|
|
rt2560_encryption_intr(sc);
|
|
rt2560_tx_intr(sc);
|
|
|
|
if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
|
|
if_printf(ifp, "device timeout\n");
|
|
rt2560_init_locked(sc);
|
|
ifp->if_oerrors++;
|
|
/* NB: callout is reset in rt2560_init() */
|
|
return;
|
|
}
|
|
callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
|
|
}
|
|
|
|
static int
|
|
rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ifreq *ifr = (struct ifreq *) data;
|
|
int error = 0, startall = 0;
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFFLAGS:
|
|
RAL_LOCK(sc);
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
|
|
rt2560_init_locked(sc);
|
|
startall = 1;
|
|
} else
|
|
rt2560_update_promisc(ifp);
|
|
} else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
rt2560_stop_locked(sc);
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
if (startall)
|
|
ieee80211_start_all(ic);
|
|
break;
|
|
case SIOCGIFMEDIA:
|
|
error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
|
|
break;
|
|
case SIOCGIFADDR:
|
|
error = ether_ioctl(ifp, cmd, data);
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static 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) {
|
|
device_printf(sc->sc_dev, "could not write to BBP\n");
|
|
return;
|
|
}
|
|
|
|
tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
|
|
RAL_WRITE(sc, RT2560_BBPCSR, tmp);
|
|
|
|
DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
|
|
}
|
|
|
|
static 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) {
|
|
device_printf(sc->sc_dev, "could not read from BBP\n");
|
|
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);
|
|
}
|
|
|
|
device_printf(sc->sc_dev, "could not read from BBP\n");
|
|
return 0;
|
|
}
|
|
|
|
static 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) {
|
|
device_printf(sc->sc_dev, "could not write to RF\n");
|
|
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(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
|
|
}
|
|
|
|
static void
|
|
rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint8_t power, tmp;
|
|
u_int i, chan;
|
|
|
|
chan = ieee80211_chan2ieee(ic, c);
|
|
KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
|
|
|
|
if (IEEE80211_IS_CHAN_2GHZ(c))
|
|
power = min(sc->txpow[chan - 1], 31);
|
|
else
|
|
power = 31;
|
|
|
|
/* adjust txpower using ifconfig settings */
|
|
power -= (100 - ic->ic_txpowlimit) / 8;
|
|
|
|
DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
|
|
|
|
switch (sc->rf_rev) {
|
|
case RT2560_RF_2522:
|
|
rt2560_rf_write(sc, RAL_RF1, 0x00814);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
break;
|
|
|
|
case RT2560_RF_2523:
|
|
rt2560_rf_write(sc, RAL_RF1, 0x08804);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RT2560_RF_2524:
|
|
rt2560_rf_write(sc, RAL_RF1, 0x0c808);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RT2560_RF_2525:
|
|
rt2560_rf_write(sc, RAL_RF1, 0x08808);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
|
|
rt2560_rf_write(sc, RAL_RF1, 0x08808);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RT2560_RF_2525E:
|
|
rt2560_rf_write(sc, RAL_RF1, 0x08808);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
|
|
break;
|
|
|
|
case RT2560_RF_2526:
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
rt2560_rf_write(sc, RAL_RF1, 0x08804);
|
|
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
break;
|
|
|
|
/* dual-band RF */
|
|
case RT2560_RF_5222:
|
|
for (i = 0; rt2560_rf5222[i].chan != chan; i++);
|
|
|
|
rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
|
|
rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
|
|
rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
|
|
break;
|
|
default:
|
|
printf("unknown ral rev=%d\n", sc->rf_rev);
|
|
}
|
|
|
|
/* XXX */
|
|
if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
|
|
/* 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);
|
|
|
|
/* clear CRC errors */
|
|
RAL_READ(sc, RT2560_CNT0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
rt2560_set_channel(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
|
|
RAL_LOCK(sc);
|
|
rt2560_set_chan(sc, ic->ic_curchan);
|
|
RAL_UNLOCK(sc);
|
|
|
|
}
|
|
|
|
#if 0
|
|
/*
|
|
* Disable RF auto-tuning.
|
|
*/
|
|
static void
|
|
rt2560_disable_rf_tune(struct rt2560_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
if (sc->rf_rev != RT2560_RF_2523) {
|
|
tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
|
|
rt2560_rf_write(sc, RAL_RF1, tmp);
|
|
}
|
|
|
|
tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
|
|
rt2560_rf_write(sc, RAL_RF3, tmp);
|
|
|
|
DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
|
|
* synchronization.
|
|
*/
|
|
static void
|
|
rt2560_enable_tsf_sync(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
|
|
uint16_t logcwmin, preload;
|
|
uint32_t tmp;
|
|
|
|
/* first, disable TSF synchronization */
|
|
RAL_WRITE(sc, RT2560_CSR14, 0);
|
|
|
|
tmp = 16 * vap->iv_bss->ni_intval;
|
|
RAL_WRITE(sc, RT2560_CSR12, tmp);
|
|
|
|
RAL_WRITE(sc, RT2560_CSR13, 0);
|
|
|
|
logcwmin = 5;
|
|
preload = (vap->iv_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);
|
|
else
|
|
tmp |= RT2560_ENABLE_TSF_SYNC(2) |
|
|
RT2560_ENABLE_BEACON_GENERATOR;
|
|
RAL_WRITE(sc, RT2560_CSR14, tmp);
|
|
|
|
DPRINTF(sc, "%s", "enabling TSF synchronization\n");
|
|
}
|
|
|
|
static void
|
|
rt2560_enable_tsf(struct rt2560_softc *sc)
|
|
{
|
|
RAL_WRITE(sc, RT2560_CSR14, 0);
|
|
RAL_WRITE(sc, RT2560_CSR14,
|
|
RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
|
|
}
|
|
|
|
static void
|
|
rt2560_update_plcp(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
/* 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(sc, "updating PLCP for %s preamble\n",
|
|
(ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
|
|
}
|
|
|
|
/*
|
|
* This function can be called by ieee80211_set_shortslottime(). Refer to
|
|
* IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
|
|
*/
|
|
static void
|
|
rt2560_update_slot(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint8_t slottime;
|
|
uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
|
|
uint32_t tmp;
|
|
|
|
#ifndef FORCE_SLOTTIME
|
|
slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
|
|
#else
|
|
/*
|
|
* Setting slot time according to "short slot time" capability
|
|
* in beacon/probe_resp seems to cause problem to acknowledge
|
|
* certain AP's data frames transimitted at CCK/DS rates: the
|
|
* problematic AP keeps retransmitting data frames, probably
|
|
* because MAC level acks are not received by hardware.
|
|
* So we cheat a little bit here by claiming we are capable of
|
|
* "short slot time" but setting hardware slot time to the normal
|
|
* slot time. ral(4) does not seem to have trouble to receive
|
|
* frames transmitted using short slot time even if hardware
|
|
* slot time is set to normal slot time. If we didn't use this
|
|
* trick, we would have to claim that short slot time is not
|
|
* supported; this would give relative poor RX performance
|
|
* (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
|
|
* slot time.
|
|
*/
|
|
slottime = 20;
|
|
#endif
|
|
|
|
/* update the MAC slot boundaries */
|
|
tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
|
|
tx_pifs = tx_sifs + slottime;
|
|
tx_difs = tx_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 = tx_pifs << 16 | tx_sifs;
|
|
RAL_WRITE(sc, RT2560_CSR18, tmp);
|
|
|
|
tmp = eifs << 16 | tx_difs;
|
|
RAL_WRITE(sc, RT2560_CSR19, tmp);
|
|
|
|
DPRINTF(sc, "setting slottime to %uus\n", slottime);
|
|
}
|
|
|
|
static void
|
|
rt2560_set_basicrates(struct rt2560_softc *sc,
|
|
const struct ieee80211_rateset *rs)
|
|
{
|
|
#define RV(r) ((r) & IEEE80211_RATE_VAL)
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint32_t mask = 0;
|
|
uint8_t rate;
|
|
int i;
|
|
|
|
for (i = 0; i < rs->rs_nrates; i++) {
|
|
rate = rs->rs_rates[i];
|
|
|
|
if (!(rate & IEEE80211_RATE_BASIC))
|
|
continue;
|
|
|
|
mask |= 1 << ic->ic_rt->rateCodeToIndex[RV(rate)];
|
|
}
|
|
|
|
RAL_WRITE(sc, RT2560_ARSP_PLCP_1, mask);
|
|
|
|
DPRINTF(sc, "Setting basic rate mask to 0x%x\n", mask);
|
|
#undef RV
|
|
}
|
|
|
|
static 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);
|
|
}
|
|
|
|
static void
|
|
rt2560_set_bssid(struct rt2560_softc *sc, const 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(sc, "setting BSSID to %6D\n", bssid, ":");
|
|
}
|
|
|
|
static 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(sc, "setting MAC address to %6D\n", addr, ":");
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
static void
|
|
rt2560_update_promisc(struct ifnet *ifp)
|
|
{
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
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(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
|
|
"entering" : "leaving");
|
|
}
|
|
|
|
static 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";
|
|
}
|
|
}
|
|
|
|
static void
|
|
rt2560_read_config(struct rt2560_softc *sc)
|
|
{
|
|
uint16_t val;
|
|
int i;
|
|
|
|
val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
|
|
sc->rf_rev = (val >> 11) & 0x7;
|
|
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);
|
|
if (val == 0 || val == 0xffff)
|
|
continue;
|
|
|
|
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 & 0xff;
|
|
sc->txpow[i * 2 + 1] = val >> 8;
|
|
}
|
|
for (i = 0; i < 14; ++i) {
|
|
if (sc->txpow[i] > 31)
|
|
sc->txpow[i] = 24;
|
|
}
|
|
|
|
val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
|
|
if ((val & 0xff) == 0xff)
|
|
sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
|
|
else
|
|
sc->rssi_corr = val & 0xff;
|
|
DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
|
|
sc->rssi_corr, val);
|
|
}
|
|
|
|
|
|
static void
|
|
rt2560_scan_start(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
|
|
/* abort TSF synchronization */
|
|
RAL_WRITE(sc, RT2560_CSR14, 0);
|
|
rt2560_set_bssid(sc, ifp->if_broadcastaddr);
|
|
}
|
|
|
|
static void
|
|
rt2560_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
struct ieee80211vap *vap = ic->ic_scan->ss_vap;
|
|
|
|
rt2560_enable_tsf_sync(sc);
|
|
/* XXX keep local copy */
|
|
rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
|
|
}
|
|
|
|
static int
|
|
rt2560_bbp_init(struct rt2560_softc *sc)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
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) {
|
|
device_printf(sc->sc_dev, "timeout waiting for BBP\n");
|
|
return EIO;
|
|
}
|
|
|
|
/* initialize BBP registers to default values */
|
|
for (i = 0; i < N(rt2560_def_bbp); i++) {
|
|
rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
|
|
rt2560_def_bbp[i].val);
|
|
}
|
|
|
|
/* initialize BBP registers to values stored in EEPROM */
|
|
for (i = 0; i < 16; i++) {
|
|
if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
|
|
break;
|
|
rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
|
|
}
|
|
rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
|
|
|
|
return 0;
|
|
#undef N
|
|
}
|
|
|
|
static 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);
|
|
}
|
|
|
|
static 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);
|
|
}
|
|
|
|
static void
|
|
rt2560_init_locked(struct rt2560_softc *sc)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint32_t tmp;
|
|
int i;
|
|
|
|
RAL_LOCK_ASSERT(sc);
|
|
|
|
rt2560_stop_locked(sc);
|
|
|
|
/* 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 < N(rt2560_def_mac); i++)
|
|
RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
|
|
|
|
rt2560_set_macaddr(sc, IF_LLADDR(ifp));
|
|
|
|
/* set basic rate set (will be updated later) */
|
|
RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
|
|
|
|
rt2560_update_slot(ifp);
|
|
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_locked(sc);
|
|
return;
|
|
}
|
|
|
|
rt2560_set_txantenna(sc, sc->tx_ant);
|
|
rt2560_set_rxantenna(sc, sc->rx_ant);
|
|
|
|
/* set default BSS channel */
|
|
rt2560_set_chan(sc, ic->ic_curchan);
|
|
|
|
/* 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;
|
|
if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
|
|
ic->ic_opmode != IEEE80211_M_MBSS)
|
|
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_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
|
|
callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
rt2560_init(void *priv)
|
|
{
|
|
struct rt2560_softc *sc = priv;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
RAL_LOCK(sc);
|
|
rt2560_init_locked(sc);
|
|
RAL_UNLOCK(sc);
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ieee80211_start_all(ic); /* start all vap's */
|
|
}
|
|
|
|
static void
|
|
rt2560_stop_locked(struct rt2560_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
volatile int *flags = &sc->sc_flags;
|
|
|
|
RAL_LOCK_ASSERT(sc);
|
|
|
|
while (*flags & RT2560_F_INPUT_RUNNING)
|
|
msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10);
|
|
|
|
callout_stop(&sc->watchdog_ch);
|
|
sc->sc_tx_timer = 0;
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
|
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
|
|
/* abort Tx */
|
|
RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
|
|
|
|
/* disable Rx */
|
|
RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
|
|
|
|
/* reset ASIC (imply reset BBP) */
|
|
RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
|
|
RAL_WRITE(sc, RT2560_CSR1, 0);
|
|
|
|
/* disable interrupts */
|
|
RAL_WRITE(sc, RT2560_CSR8, 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);
|
|
}
|
|
sc->sc_flags &= ~(RT2560_F_PRIO_OACTIVE | RT2560_F_DATA_OACTIVE);
|
|
}
|
|
|
|
void
|
|
rt2560_stop(void *arg)
|
|
{
|
|
struct rt2560_softc *sc = arg;
|
|
|
|
RAL_LOCK(sc);
|
|
rt2560_stop_locked(sc);
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct rt2560_softc *sc = ifp->if_softc;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
/* prevent management frames from being sent if we're not ready */
|
|
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
RAL_UNLOCK(sc);
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return ENETDOWN;
|
|
}
|
|
if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
sc->sc_flags |= RT2560_F_PRIO_OACTIVE;
|
|
RAL_UNLOCK(sc);
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return ENOBUFS; /* XXX */
|
|
}
|
|
|
|
ifp->if_opackets++;
|
|
|
|
if (params == NULL) {
|
|
/*
|
|
* Legacy path; interpret frame contents to decide
|
|
* precisely how to send the frame.
|
|
*/
|
|
if (rt2560_tx_mgt(sc, m, ni) != 0)
|
|
goto bad;
|
|
} else {
|
|
/*
|
|
* Caller supplied explicit parameters to use in
|
|
* sending the frame.
|
|
*/
|
|
if (rt2560_tx_raw(sc, m, ni, params))
|
|
goto bad;
|
|
}
|
|
sc->sc_tx_timer = 5;
|
|
|
|
RAL_UNLOCK(sc);
|
|
|
|
return 0;
|
|
bad:
|
|
ifp->if_oerrors++;
|
|
ieee80211_free_node(ni);
|
|
RAL_UNLOCK(sc);
|
|
return EIO; /* XXX */
|
|
}
|