2268 lines
56 KiB
C
2268 lines
56 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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* Copyright (c) 2006, 2008
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* Hans Petter Selasky <hselasky@FreeBSD.org>
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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 RT2500USB 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/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/lock.h>
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#include <sys/mutex.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/module.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/kdb.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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#ifdef INET
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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/if_ether.h>
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#include <netinet/ip.h>
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#endif
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include "usbdevs.h"
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#define USB_DEBUG_VAR ural_debug
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#include <dev/usb/usb_debug.h>
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#include <dev/usb/wlan/if_uralreg.h>
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#include <dev/usb/wlan/if_uralvar.h>
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#ifdef USB_DEBUG
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static int ural_debug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, ural, CTLFLAG_RW, 0, "USB ural");
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SYSCTL_INT(_hw_usb_ural, OID_AUTO, debug, CTLFLAG_RW, &ural_debug, 0,
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"Debug level");
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#endif
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#define URAL_RSSI(rssi) \
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((rssi) > (RAL_NOISE_FLOOR + RAL_RSSI_CORR) ? \
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((rssi) - (RAL_NOISE_FLOOR + RAL_RSSI_CORR)) : 0)
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/* various supported device vendors/products */
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static const struct usb_device_id ural_devs[] = {
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#define URAL_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
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URAL_DEV(ASUS, WL167G),
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URAL_DEV(ASUS, RT2570),
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URAL_DEV(BELKIN, F5D7050),
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URAL_DEV(BELKIN, F5D7051),
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URAL_DEV(CISCOLINKSYS, HU200TS),
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URAL_DEV(CISCOLINKSYS, WUSB54G),
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URAL_DEV(CISCOLINKSYS, WUSB54GP),
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URAL_DEV(CONCEPTRONIC2, C54RU),
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URAL_DEV(DLINK, DWLG122),
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URAL_DEV(GIGABYTE, GN54G),
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URAL_DEV(GIGABYTE, GNWBKG),
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URAL_DEV(GUILLEMOT, HWGUSB254),
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URAL_DEV(MELCO, KG54),
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URAL_DEV(MELCO, KG54AI),
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URAL_DEV(MELCO, KG54YB),
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URAL_DEV(MELCO, NINWIFI),
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URAL_DEV(MSI, RT2570),
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URAL_DEV(MSI, RT2570_2),
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URAL_DEV(MSI, RT2570_3),
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URAL_DEV(NOVATECH, NV902),
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URAL_DEV(RALINK, RT2570),
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URAL_DEV(RALINK, RT2570_2),
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URAL_DEV(RALINK, RT2570_3),
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URAL_DEV(SIEMENS2, WL54G),
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URAL_DEV(SMC, 2862WG),
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URAL_DEV(SPHAIRON, UB801R),
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URAL_DEV(SURECOM, RT2570),
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URAL_DEV(VTECH, RT2570),
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URAL_DEV(ZINWELL, RT2570),
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#undef URAL_DEV
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};
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static usb_callback_t ural_bulk_read_callback;
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static usb_callback_t ural_bulk_write_callback;
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static usb_error_t ural_do_request(struct ural_softc *sc,
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struct usb_device_request *req, void *data);
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static struct ieee80211vap *ural_vap_create(struct ieee80211com *,
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const char name[IFNAMSIZ], int unit, int opmode,
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int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
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const uint8_t mac[IEEE80211_ADDR_LEN]);
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static void ural_vap_delete(struct ieee80211vap *);
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static void ural_tx_free(struct ural_tx_data *, int);
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static void ural_setup_tx_list(struct ural_softc *);
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static void ural_unsetup_tx_list(struct ural_softc *);
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static int ural_newstate(struct ieee80211vap *,
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enum ieee80211_state, int);
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static void ural_setup_tx_desc(struct ural_softc *,
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struct ural_tx_desc *, uint32_t, int, int);
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static int ural_tx_bcn(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ural_tx_mgt(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ural_tx_data(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static void ural_start(struct ifnet *);
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static int ural_ioctl(struct ifnet *, u_long, caddr_t);
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static void ural_set_testmode(struct ural_softc *);
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static void ural_eeprom_read(struct ural_softc *, uint16_t, void *,
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int);
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static uint16_t ural_read(struct ural_softc *, uint16_t);
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static void ural_read_multi(struct ural_softc *, uint16_t, void *,
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int);
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static void ural_write(struct ural_softc *, uint16_t, uint16_t);
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static void ural_write_multi(struct ural_softc *, uint16_t, void *,
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int) __unused;
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static void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t);
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static uint8_t ural_bbp_read(struct ural_softc *, uint8_t);
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static void ural_rf_write(struct ural_softc *, uint8_t, uint32_t);
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static void ural_scan_start(struct ieee80211com *);
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static void ural_scan_end(struct ieee80211com *);
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static void ural_set_channel(struct ieee80211com *);
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static void ural_set_chan(struct ural_softc *,
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struct ieee80211_channel *);
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static void ural_disable_rf_tune(struct ural_softc *);
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static void ural_enable_tsf_sync(struct ural_softc *);
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static void ural_enable_tsf(struct ural_softc *);
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static void ural_update_slot(struct ifnet *);
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static void ural_set_txpreamble(struct ural_softc *);
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static void ural_set_basicrates(struct ural_softc *,
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const struct ieee80211_channel *);
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static void ural_set_bssid(struct ural_softc *, const uint8_t *);
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static void ural_set_macaddr(struct ural_softc *, uint8_t *);
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static void ural_update_promisc(struct ifnet *);
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static void ural_setpromisc(struct ural_softc *);
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static const char *ural_get_rf(int);
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static void ural_read_eeprom(struct ural_softc *);
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static int ural_bbp_init(struct ural_softc *);
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static void ural_set_txantenna(struct ural_softc *, int);
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static void ural_set_rxantenna(struct ural_softc *, int);
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static void ural_init_locked(struct ural_softc *);
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static void ural_init(void *);
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static void ural_stop(struct ural_softc *);
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static int ural_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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static void ural_ratectl_start(struct ural_softc *,
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struct ieee80211_node *);
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static void ural_ratectl_timeout(void *);
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static void ural_ratectl_task(void *, int);
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static int ural_pause(struct ural_softc *sc, int timeout);
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/*
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* Default values for MAC registers; values taken from the reference driver.
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*/
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static const struct {
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uint16_t reg;
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uint16_t val;
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} ural_def_mac[] = {
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{ RAL_TXRX_CSR5, 0x8c8d },
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{ RAL_TXRX_CSR6, 0x8b8a },
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{ RAL_TXRX_CSR7, 0x8687 },
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{ RAL_TXRX_CSR8, 0x0085 },
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{ RAL_MAC_CSR13, 0x1111 },
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{ RAL_MAC_CSR14, 0x1e11 },
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{ RAL_TXRX_CSR21, 0xe78f },
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{ RAL_MAC_CSR9, 0xff1d },
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{ RAL_MAC_CSR11, 0x0002 },
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{ RAL_MAC_CSR22, 0x0053 },
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{ RAL_MAC_CSR15, 0x0000 },
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{ RAL_MAC_CSR8, RAL_FRAME_SIZE },
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{ RAL_TXRX_CSR19, 0x0000 },
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{ RAL_TXRX_CSR18, 0x005a },
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{ RAL_PHY_CSR2, 0x0000 },
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{ RAL_TXRX_CSR0, 0x1ec0 },
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{ RAL_PHY_CSR4, 0x000f }
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};
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/*
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* Default values for BBP registers; values taken from the reference driver.
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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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} ural_def_bbp[] = {
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{ 3, 0x02 },
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{ 4, 0x19 },
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{ 14, 0x1c },
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{ 15, 0x30 },
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{ 16, 0xac },
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{ 17, 0x48 },
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{ 18, 0x18 },
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{ 19, 0xff },
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{ 20, 0x1e },
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{ 21, 0x08 },
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{ 22, 0x08 },
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{ 23, 0x08 },
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{ 24, 0x80 },
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{ 25, 0x50 },
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{ 26, 0x08 },
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{ 27, 0x23 },
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{ 30, 0x10 },
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{ 31, 0x2b },
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{ 32, 0xb9 },
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{ 34, 0x12 },
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{ 35, 0x50 },
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{ 39, 0xc4 },
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{ 40, 0x02 },
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{ 41, 0x60 },
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{ 53, 0x10 },
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{ 54, 0x18 },
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{ 56, 0x08 },
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{ 57, 0x10 },
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{ 58, 0x08 },
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{ 61, 0x60 },
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{ 62, 0x10 },
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{ 75, 0xff }
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};
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/*
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* Default values for RF register R2 indexed by channel numbers.
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*/
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static const uint32_t ural_rf2522_r2[] = {
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0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814,
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0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e
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};
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static const uint32_t ural_rf2523_r2[] = {
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0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
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0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
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};
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static const uint32_t ural_rf2524_r2[] = {
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0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
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0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
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};
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static const uint32_t ural_rf2525_r2[] = {
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0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d,
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0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346
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};
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static const uint32_t ural_rf2525_hi_r2[] = {
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0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345,
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0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e
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};
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static const uint32_t ural_rf2525e_r2[] = {
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0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463,
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0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b
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};
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static const uint32_t ural_rf2526_hi_r2[] = {
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0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d,
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0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241
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};
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static const uint32_t ural_rf2526_r2[] = {
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0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229,
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0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d
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};
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/*
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* For dual-band RF, RF registers R1 and R4 also depend on channel number;
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* values taken from the reference driver.
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*/
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static const struct {
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uint8_t chan;
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uint32_t r1;
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uint32_t r2;
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uint32_t r4;
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} ural_rf5222[] = {
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{ 1, 0x08808, 0x0044d, 0x00282 },
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{ 2, 0x08808, 0x0044e, 0x00282 },
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{ 3, 0x08808, 0x0044f, 0x00282 },
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{ 4, 0x08808, 0x00460, 0x00282 },
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{ 5, 0x08808, 0x00461, 0x00282 },
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{ 6, 0x08808, 0x00462, 0x00282 },
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{ 7, 0x08808, 0x00463, 0x00282 },
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{ 8, 0x08808, 0x00464, 0x00282 },
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{ 9, 0x08808, 0x00465, 0x00282 },
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{ 10, 0x08808, 0x00466, 0x00282 },
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{ 11, 0x08808, 0x00467, 0x00282 },
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{ 12, 0x08808, 0x00468, 0x00282 },
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{ 13, 0x08808, 0x00469, 0x00282 },
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{ 14, 0x08808, 0x0046b, 0x00286 },
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{ 36, 0x08804, 0x06225, 0x00287 },
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{ 40, 0x08804, 0x06226, 0x00287 },
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{ 44, 0x08804, 0x06227, 0x00287 },
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{ 48, 0x08804, 0x06228, 0x00287 },
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{ 52, 0x08804, 0x06229, 0x00287 },
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{ 56, 0x08804, 0x0622a, 0x00287 },
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{ 60, 0x08804, 0x0622b, 0x00287 },
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{ 64, 0x08804, 0x0622c, 0x00287 },
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{ 100, 0x08804, 0x02200, 0x00283 },
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{ 104, 0x08804, 0x02201, 0x00283 },
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{ 108, 0x08804, 0x02202, 0x00283 },
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{ 112, 0x08804, 0x02203, 0x00283 },
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{ 116, 0x08804, 0x02204, 0x00283 },
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{ 120, 0x08804, 0x02205, 0x00283 },
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{ 124, 0x08804, 0x02206, 0x00283 },
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{ 128, 0x08804, 0x02207, 0x00283 },
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{ 132, 0x08804, 0x02208, 0x00283 },
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{ 136, 0x08804, 0x02209, 0x00283 },
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{ 140, 0x08804, 0x0220a, 0x00283 },
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{ 149, 0x08808, 0x02429, 0x00281 },
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{ 153, 0x08808, 0x0242b, 0x00281 },
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{ 157, 0x08808, 0x0242d, 0x00281 },
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{ 161, 0x08808, 0x0242f, 0x00281 }
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};
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static const struct usb_config ural_config[URAL_N_TRANSFER] = {
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[URAL_BULK_WR] = {
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.type = UE_BULK,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_OUT,
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.bufsize = (RAL_FRAME_SIZE + RAL_TX_DESC_SIZE + 4),
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.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
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.callback = ural_bulk_write_callback,
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.timeout = 5000, /* ms */
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},
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[URAL_BULK_RD] = {
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.type = UE_BULK,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_IN,
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.bufsize = (RAL_FRAME_SIZE + RAL_RX_DESC_SIZE),
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.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
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.callback = ural_bulk_read_callback,
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},
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};
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static device_probe_t ural_match;
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static device_attach_t ural_attach;
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static device_detach_t ural_detach;
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static device_method_t ural_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ural_match),
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DEVMETHOD(device_attach, ural_attach),
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DEVMETHOD(device_detach, ural_detach),
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{ 0, 0 }
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};
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static driver_t ural_driver = {
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.name = "ural",
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.methods = ural_methods,
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.size = sizeof(struct ural_softc),
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};
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static devclass_t ural_devclass;
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DRIVER_MODULE(ural, uhub, ural_driver, ural_devclass, NULL, 0);
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MODULE_DEPEND(ural, usb, 1, 1, 1);
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MODULE_DEPEND(ural, wlan, 1, 1, 1);
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static int
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ural_match(device_t self)
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{
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struct usb_attach_arg *uaa = device_get_ivars(self);
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if (uaa->usb_mode != USB_MODE_HOST)
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return (ENXIO);
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if (uaa->info.bConfigIndex != 0)
|
|
return (ENXIO);
|
|
if (uaa->info.bIfaceIndex != RAL_IFACE_INDEX)
|
|
return (ENXIO);
|
|
|
|
return (usbd_lookup_id_by_uaa(ural_devs, sizeof(ural_devs), uaa));
|
|
}
|
|
|
|
static int
|
|
ural_attach(device_t self)
|
|
{
|
|
struct usb_attach_arg *uaa = device_get_ivars(self);
|
|
struct ural_softc *sc = device_get_softc(self);
|
|
struct ifnet *ifp;
|
|
struct ieee80211com *ic;
|
|
uint8_t iface_index, bands;
|
|
int error;
|
|
|
|
device_set_usb_desc(self);
|
|
sc->sc_udev = uaa->device;
|
|
sc->sc_dev = self;
|
|
|
|
mtx_init(&sc->sc_mtx, device_get_nameunit(self),
|
|
MTX_NETWORK_LOCK, MTX_DEF);
|
|
|
|
iface_index = RAL_IFACE_INDEX;
|
|
error = usbd_transfer_setup(uaa->device,
|
|
&iface_index, sc->sc_xfer, ural_config,
|
|
URAL_N_TRANSFER, sc, &sc->sc_mtx);
|
|
if (error) {
|
|
device_printf(self, "could not allocate USB transfers, "
|
|
"err=%s\n", usbd_errstr(error));
|
|
goto detach;
|
|
}
|
|
|
|
RAL_LOCK(sc);
|
|
/* retrieve RT2570 rev. no */
|
|
sc->asic_rev = ural_read(sc, RAL_MAC_CSR0);
|
|
|
|
/* retrieve MAC address and various other things from EEPROM */
|
|
ural_read_eeprom(sc);
|
|
RAL_UNLOCK(sc);
|
|
|
|
device_printf(self, "MAC/BBP RT2570 (rev 0x%02x), RF %s\n",
|
|
sc->asic_rev, ural_get_rf(sc->rf_rev));
|
|
|
|
ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
|
|
if (ifp == NULL) {
|
|
device_printf(sc->sc_dev, "can not if_alloc()\n");
|
|
goto detach;
|
|
}
|
|
ic = ifp->if_l2com;
|
|
|
|
ifp->if_softc = sc;
|
|
if_initname(ifp, "ural", device_get_unit(sc->sc_dev));
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
|
|
ifp->if_init = ural_init;
|
|
ifp->if_ioctl = ural_ioctl;
|
|
ifp->if_start = ural_start;
|
|
IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
|
|
ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
|
|
IFQ_SET_READY(&ifp->if_snd);
|
|
|
|
ic->ic_ifp = ifp;
|
|
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
|
|
|
|
/* set device capabilities */
|
|
ic->ic_caps =
|
|
IEEE80211_C_STA /* station mode supported */
|
|
| IEEE80211_C_IBSS /* IBSS mode supported */
|
|
| IEEE80211_C_MONITOR /* monitor mode supported */
|
|
| IEEE80211_C_HOSTAP /* HostAp mode supported */
|
|
| IEEE80211_C_TXPMGT /* tx power management */
|
|
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
|
|
| IEEE80211_C_SHSLOT /* short slot time supported */
|
|
| IEEE80211_C_BGSCAN /* bg scanning supported */
|
|
| IEEE80211_C_WPA /* 802.11i */
|
|
;
|
|
|
|
bands = 0;
|
|
setbit(&bands, IEEE80211_MODE_11B);
|
|
setbit(&bands, IEEE80211_MODE_11G);
|
|
if (sc->rf_rev == RAL_RF_5222)
|
|
setbit(&bands, IEEE80211_MODE_11A);
|
|
ieee80211_init_channels(ic, NULL, &bands);
|
|
|
|
ieee80211_ifattach(ic, sc->sc_bssid);
|
|
ic->ic_update_promisc = ural_update_promisc;
|
|
ic->ic_raw_xmit = ural_raw_xmit;
|
|
ic->ic_scan_start = ural_scan_start;
|
|
ic->ic_scan_end = ural_scan_end;
|
|
ic->ic_set_channel = ural_set_channel;
|
|
|
|
ic->ic_vap_create = ural_vap_create;
|
|
ic->ic_vap_delete = ural_vap_delete;
|
|
|
|
ieee80211_radiotap_attach(ic,
|
|
&sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
|
|
RAL_TX_RADIOTAP_PRESENT,
|
|
&sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
|
|
RAL_RX_RADIOTAP_PRESENT);
|
|
|
|
if (bootverbose)
|
|
ieee80211_announce(ic);
|
|
|
|
return (0);
|
|
|
|
detach:
|
|
ural_detach(self);
|
|
return (ENXIO); /* failure */
|
|
}
|
|
|
|
static int
|
|
ural_detach(device_t self)
|
|
{
|
|
struct ural_softc *sc = device_get_softc(self);
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic;
|
|
|
|
/* stop all USB transfers */
|
|
usbd_transfer_unsetup(sc->sc_xfer, URAL_N_TRANSFER);
|
|
|
|
/* free TX list, if any */
|
|
RAL_LOCK(sc);
|
|
ural_unsetup_tx_list(sc);
|
|
RAL_UNLOCK(sc);
|
|
|
|
if (ifp) {
|
|
ic = ifp->if_l2com;
|
|
ieee80211_ifdetach(ic);
|
|
if_free(ifp);
|
|
}
|
|
mtx_destroy(&sc->sc_mtx);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static usb_error_t
|
|
ural_do_request(struct ural_softc *sc,
|
|
struct usb_device_request *req, void *data)
|
|
{
|
|
usb_error_t err;
|
|
int ntries = 10;
|
|
|
|
while (ntries--) {
|
|
err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
|
|
req, data, 0, NULL, 250 /* ms */);
|
|
if (err == 0)
|
|
break;
|
|
|
|
DPRINTFN(1, "Control request failed, %s (retrying)\n",
|
|
usbd_errstr(err));
|
|
if (ural_pause(sc, hz / 100))
|
|
break;
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
static struct ieee80211vap *
|
|
ural_vap_create(struct ieee80211com *ic,
|
|
const char name[IFNAMSIZ], int unit, int opmode, int flags,
|
|
const uint8_t bssid[IEEE80211_ADDR_LEN],
|
|
const uint8_t mac[IEEE80211_ADDR_LEN])
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
struct ural_vap *uvp;
|
|
struct ieee80211vap *vap;
|
|
|
|
if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
|
|
return NULL;
|
|
uvp = (struct ural_vap *) malloc(sizeof(struct ural_vap),
|
|
M_80211_VAP, M_NOWAIT | M_ZERO);
|
|
if (uvp == NULL)
|
|
return NULL;
|
|
vap = &uvp->vap;
|
|
/* enable s/w bmiss handling for sta mode */
|
|
ieee80211_vap_setup(ic, vap, name, unit, opmode,
|
|
flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
|
|
|
|
/* override state transition machine */
|
|
uvp->newstate = vap->iv_newstate;
|
|
vap->iv_newstate = ural_newstate;
|
|
|
|
usb_callout_init_mtx(&uvp->ratectl_ch, &sc->sc_mtx, 0);
|
|
TASK_INIT(&uvp->ratectl_task, 0, ural_ratectl_task, uvp);
|
|
ieee80211_ratectl_init(vap);
|
|
ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
|
|
|
|
/* complete setup */
|
|
ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
|
|
ic->ic_opmode = opmode;
|
|
return vap;
|
|
}
|
|
|
|
static void
|
|
ural_vap_delete(struct ieee80211vap *vap)
|
|
{
|
|
struct ural_vap *uvp = URAL_VAP(vap);
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
usb_callout_drain(&uvp->ratectl_ch);
|
|
ieee80211_draintask(ic, &uvp->ratectl_task);
|
|
ieee80211_ratectl_deinit(vap);
|
|
ieee80211_vap_detach(vap);
|
|
free(uvp, M_80211_VAP);
|
|
}
|
|
|
|
static void
|
|
ural_tx_free(struct ural_tx_data *data, int txerr)
|
|
{
|
|
struct ural_softc *sc = data->sc;
|
|
|
|
if (data->m != NULL) {
|
|
if (data->m->m_flags & M_TXCB)
|
|
ieee80211_process_callback(data->ni, data->m,
|
|
txerr ? ETIMEDOUT : 0);
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
}
|
|
STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
|
|
sc->tx_nfree++;
|
|
}
|
|
|
|
static void
|
|
ural_setup_tx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_tx_data *data;
|
|
int i;
|
|
|
|
sc->tx_nfree = 0;
|
|
STAILQ_INIT(&sc->tx_q);
|
|
STAILQ_INIT(&sc->tx_free);
|
|
|
|
for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
|
|
data = &sc->tx_data[i];
|
|
|
|
data->sc = sc;
|
|
STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
|
|
sc->tx_nfree++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_unsetup_tx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_tx_data *data;
|
|
int i;
|
|
|
|
/* make sure any subsequent use of the queues will fail */
|
|
sc->tx_nfree = 0;
|
|
STAILQ_INIT(&sc->tx_q);
|
|
STAILQ_INIT(&sc->tx_free);
|
|
|
|
/* free up all node references and mbufs */
|
|
for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
|
|
data = &sc->tx_data[i];
|
|
|
|
if (data->m != NULL) {
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
}
|
|
if (data->ni != NULL) {
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
ural_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct ural_vap *uvp = URAL_VAP(vap);
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
const struct ieee80211_txparam *tp;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
|
|
DPRINTF("%s -> %s\n",
|
|
ieee80211_state_name[vap->iv_state],
|
|
ieee80211_state_name[nstate]);
|
|
|
|
IEEE80211_UNLOCK(ic);
|
|
RAL_LOCK(sc);
|
|
usb_callout_stop(&uvp->ratectl_ch);
|
|
|
|
switch (nstate) {
|
|
case IEEE80211_S_INIT:
|
|
if (vap->iv_state == IEEE80211_S_RUN) {
|
|
/* abort TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
|
|
/* force tx led to stop blinking */
|
|
ural_write(sc, RAL_MAC_CSR20, 0);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_S_RUN:
|
|
ni = vap->iv_bss;
|
|
|
|
if (vap->iv_opmode != IEEE80211_M_MONITOR) {
|
|
ural_update_slot(ic->ic_ifp);
|
|
ural_set_txpreamble(sc);
|
|
ural_set_basicrates(sc, ic->ic_bsschan);
|
|
IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
|
|
ural_set_bssid(sc, sc->sc_bssid);
|
|
}
|
|
|
|
if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
|
|
vap->iv_opmode == IEEE80211_M_IBSS) {
|
|
m = ieee80211_beacon_alloc(ni, &uvp->bo);
|
|
if (m == NULL) {
|
|
device_printf(sc->sc_dev,
|
|
"could not allocate beacon\n");
|
|
RAL_UNLOCK(sc);
|
|
IEEE80211_LOCK(ic);
|
|
return (-1);
|
|
}
|
|
ieee80211_ref_node(ni);
|
|
if (ural_tx_bcn(sc, m, ni) != 0) {
|
|
device_printf(sc->sc_dev,
|
|
"could not send beacon\n");
|
|
RAL_UNLOCK(sc);
|
|
IEEE80211_LOCK(ic);
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
/* make tx led blink on tx (controlled by ASIC) */
|
|
ural_write(sc, RAL_MAC_CSR20, 1);
|
|
|
|
if (vap->iv_opmode != IEEE80211_M_MONITOR)
|
|
ural_enable_tsf_sync(sc);
|
|
else
|
|
ural_enable_tsf(sc);
|
|
|
|
/* enable automatic rate adaptation */
|
|
/* XXX should use ic_bsschan but not valid until after newstate call below */
|
|
tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
|
|
if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
|
|
ural_ratectl_start(sc, ni);
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
IEEE80211_LOCK(ic);
|
|
return (uvp->newstate(vap, nstate, arg));
|
|
}
|
|
|
|
|
|
static void
|
|
ural_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct ural_softc *sc = usbd_xfer_softc(xfer);
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211vap *vap;
|
|
struct ural_tx_data *data;
|
|
struct mbuf *m;
|
|
struct usb_page_cache *pc;
|
|
int len;
|
|
|
|
usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
|
|
|
|
switch (USB_GET_STATE(xfer)) {
|
|
case USB_ST_TRANSFERRED:
|
|
DPRINTFN(11, "transfer complete, %d bytes\n", len);
|
|
|
|
/* free resources */
|
|
data = usbd_xfer_get_priv(xfer);
|
|
ural_tx_free(data, 0);
|
|
usbd_xfer_set_priv(xfer, NULL);
|
|
|
|
ifp->if_opackets++;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
|
|
/* FALLTHROUGH */
|
|
case USB_ST_SETUP:
|
|
tr_setup:
|
|
data = STAILQ_FIRST(&sc->tx_q);
|
|
if (data) {
|
|
STAILQ_REMOVE_HEAD(&sc->tx_q, next);
|
|
m = data->m;
|
|
|
|
if (m->m_pkthdr.len > (RAL_FRAME_SIZE + RAL_TX_DESC_SIZE)) {
|
|
DPRINTFN(0, "data overflow, %u bytes\n",
|
|
m->m_pkthdr.len);
|
|
m->m_pkthdr.len = (RAL_FRAME_SIZE + RAL_TX_DESC_SIZE);
|
|
}
|
|
pc = usbd_xfer_get_frame(xfer, 0);
|
|
usbd_copy_in(pc, 0, &data->desc, RAL_TX_DESC_SIZE);
|
|
usbd_m_copy_in(pc, RAL_TX_DESC_SIZE, m, 0,
|
|
m->m_pkthdr.len);
|
|
|
|
vap = data->ni->ni_vap;
|
|
if (ieee80211_radiotap_active_vap(vap)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = data->rate;
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
ieee80211_radiotap_tx(vap, m);
|
|
}
|
|
|
|
/* xfer length needs to be a multiple of two! */
|
|
len = (RAL_TX_DESC_SIZE + m->m_pkthdr.len + 1) & ~1;
|
|
if ((len % 64) == 0)
|
|
len += 2;
|
|
|
|
DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
|
|
m->m_pkthdr.len, len);
|
|
|
|
usbd_xfer_set_frame_len(xfer, 0, len);
|
|
usbd_xfer_set_priv(xfer, data);
|
|
|
|
usbd_transfer_submit(xfer);
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
ural_start(ifp);
|
|
RAL_LOCK(sc);
|
|
break;
|
|
|
|
default: /* Error */
|
|
DPRINTFN(11, "transfer error, %s\n",
|
|
usbd_errstr(error));
|
|
|
|
ifp->if_oerrors++;
|
|
data = usbd_xfer_get_priv(xfer);
|
|
if (data != NULL) {
|
|
ural_tx_free(data, error);
|
|
usbd_xfer_set_priv(xfer, NULL);
|
|
}
|
|
|
|
if (error == USB_ERR_STALLED) {
|
|
/* try to clear stall first */
|
|
usbd_xfer_set_stall(xfer);
|
|
goto tr_setup;
|
|
}
|
|
if (error == USB_ERR_TIMEOUT)
|
|
device_printf(sc->sc_dev, "device timeout\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct ural_softc *sc = usbd_xfer_softc(xfer);
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m = NULL;
|
|
struct usb_page_cache *pc;
|
|
uint32_t flags;
|
|
int8_t rssi = 0, nf = 0;
|
|
int len;
|
|
|
|
usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
|
|
|
|
switch (USB_GET_STATE(xfer)) {
|
|
case USB_ST_TRANSFERRED:
|
|
|
|
DPRINTFN(15, "rx done, actlen=%d\n", len);
|
|
|
|
if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
|
|
DPRINTF("%s: xfer too short %d\n",
|
|
device_get_nameunit(sc->sc_dev), len);
|
|
ifp->if_ierrors++;
|
|
goto tr_setup;
|
|
}
|
|
|
|
len -= RAL_RX_DESC_SIZE;
|
|
/* rx descriptor is located at the end */
|
|
pc = usbd_xfer_get_frame(xfer, 0);
|
|
usbd_copy_out(pc, len, &sc->sc_rx_desc, RAL_RX_DESC_SIZE);
|
|
|
|
rssi = URAL_RSSI(sc->sc_rx_desc.rssi);
|
|
nf = RAL_NOISE_FLOOR;
|
|
flags = le32toh(sc->sc_rx_desc.flags);
|
|
if (flags & (RAL_RX_PHY_ERROR | RAL_RX_CRC_ERROR)) {
|
|
/*
|
|
* This should not happen since we did not
|
|
* request to receive those frames when we
|
|
* filled RAL_TXRX_CSR2:
|
|
*/
|
|
DPRINTFN(5, "PHY or CRC error\n");
|
|
ifp->if_ierrors++;
|
|
goto tr_setup;
|
|
}
|
|
|
|
m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (m == NULL) {
|
|
DPRINTF("could not allocate mbuf\n");
|
|
ifp->if_ierrors++;
|
|
goto tr_setup;
|
|
}
|
|
usbd_copy_out(pc, 0, mtod(m, uint8_t *), len);
|
|
|
|
/* finalize mbuf */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
|
|
|
|
if (ieee80211_radiotap_active(ic)) {
|
|
struct ural_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
|
|
/* XXX set once */
|
|
tap->wr_flags = 0;
|
|
tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
|
|
(flags & RAL_RX_OFDM) ?
|
|
IEEE80211_T_OFDM : IEEE80211_T_CCK);
|
|
tap->wr_antenna = sc->rx_ant;
|
|
tap->wr_antsignal = nf + rssi;
|
|
tap->wr_antnoise = nf;
|
|
}
|
|
/* Strip trailing 802.11 MAC FCS. */
|
|
m_adj(m, -IEEE80211_CRC_LEN);
|
|
|
|
/* FALLTHROUGH */
|
|
case USB_ST_SETUP:
|
|
tr_setup:
|
|
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
|
|
usbd_transfer_submit(xfer);
|
|
|
|
/*
|
|
* At the end of a USB callback it is always safe to unlock
|
|
* the private mutex of a device! That is why we do the
|
|
* "ieee80211_input" here, and not some lines up!
|
|
*/
|
|
RAL_UNLOCK(sc);
|
|
if (m) {
|
|
ni = ieee80211_find_rxnode(ic,
|
|
mtod(m, struct ieee80211_frame_min *));
|
|
if (ni != NULL) {
|
|
(void) ieee80211_input(ni, m, rssi, nf);
|
|
ieee80211_free_node(ni);
|
|
} else
|
|
(void) ieee80211_input_all(ic, m, rssi, nf);
|
|
}
|
|
if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
|
|
!IFQ_IS_EMPTY(&ifp->if_snd))
|
|
ural_start(ifp);
|
|
RAL_LOCK(sc);
|
|
return;
|
|
|
|
default: /* Error */
|
|
if (error != USB_ERR_CANCELLED) {
|
|
/* try to clear stall first */
|
|
usbd_xfer_set_stall(xfer);
|
|
goto tr_setup;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
static uint8_t
|
|
ural_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
|
|
ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc,
|
|
uint32_t flags, int len, int rate)
|
|
{
|
|
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(RAL_TX_NEWSEQ);
|
|
desc->flags |= htole32(len << 16);
|
|
|
|
desc->wme = htole16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5));
|
|
desc->wme |= htole16(RAL_IVOFFSET(sizeof (struct ieee80211_frame)));
|
|
|
|
/* setup PLCP fields */
|
|
desc->plcp_signal = ural_plcp_signal(rate);
|
|
desc->plcp_service = 4;
|
|
|
|
len += IEEE80211_CRC_LEN;
|
|
if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
|
|
desc->flags |= htole32(RAL_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 |= RAL_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;
|
|
}
|
|
|
|
desc->iv = 0;
|
|
desc->eiv = 0;
|
|
}
|
|
|
|
#define RAL_TX_TIMEOUT 5000
|
|
|
|
static int
|
|
ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
const struct ieee80211_txparam *tp;
|
|
struct ural_tx_data *data;
|
|
|
|
if (sc->tx_nfree == 0) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
m_freem(m0);
|
|
ieee80211_free_node(ni);
|
|
return EIO;
|
|
}
|
|
data = STAILQ_FIRST(&sc->tx_free);
|
|
STAILQ_REMOVE_HEAD(&sc->tx_free, next);
|
|
sc->tx_nfree--;
|
|
tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
data->rate = tp->mgmtrate;
|
|
|
|
ural_setup_tx_desc(sc, &data->desc,
|
|
RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP, m0->m_pkthdr.len,
|
|
tp->mgmtrate);
|
|
|
|
DPRINTFN(10, "sending beacon frame len=%u rate=%u\n",
|
|
m0->m_pkthdr.len, tp->mgmtrate);
|
|
|
|
STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
|
|
usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ural_tx_mgt(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
const struct ieee80211_txparam *tp;
|
|
struct ural_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
uint32_t flags;
|
|
uint16_t dur;
|
|
|
|
RAL_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
data = STAILQ_FIRST(&sc->tx_free);
|
|
STAILQ_REMOVE_HEAD(&sc->tx_free, next);
|
|
sc->tx_nfree--;
|
|
|
|
tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
|
|
|
|
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;
|
|
}
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
data->rate = tp->mgmtrate;
|
|
|
|
flags = 0;
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RAL_TX_ACK;
|
|
|
|
dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
|
|
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 |= RAL_TX_TIMESTAMP;
|
|
}
|
|
|
|
ural_setup_tx_desc(sc, &data->desc, flags, m0->m_pkthdr.len, tp->mgmtrate);
|
|
|
|
DPRINTFN(10, "sending mgt frame len=%u rate=%u\n",
|
|
m0->m_pkthdr.len, tp->mgmtrate);
|
|
|
|
STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
|
|
usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_sendprot(struct ural_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 ural_tx_data *data;
|
|
struct mbuf *mprot;
|
|
int protrate, ackrate, pktlen, flags, isshort;
|
|
uint16_t dur;
|
|
|
|
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 = RAL_TX_RETRY(7);
|
|
if (prot == IEEE80211_PROT_RTSCTS) {
|
|
/* NB: CTS is the same size as an ACK */
|
|
dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
|
|
flags |= RAL_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;
|
|
}
|
|
data = STAILQ_FIRST(&sc->tx_free);
|
|
STAILQ_REMOVE_HEAD(&sc->tx_free, next);
|
|
sc->tx_nfree--;
|
|
|
|
data->m = mprot;
|
|
data->ni = ieee80211_ref_node(ni);
|
|
data->rate = protrate;
|
|
ural_setup_tx_desc(sc, &data->desc, flags, mprot->m_pkthdr.len, protrate);
|
|
|
|
STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
|
|
usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_tx_raw(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct ural_tx_data *data;
|
|
uint32_t flags;
|
|
int error;
|
|
int rate;
|
|
|
|
RAL_LOCK_ASSERT(sc, MA_OWNED);
|
|
KASSERT(params != NULL, ("no raw xmit params"));
|
|
|
|
rate = params->ibp_rate0;
|
|
if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
|
|
m_freem(m0);
|
|
return EINVAL;
|
|
}
|
|
flags = 0;
|
|
if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
|
|
flags |= RAL_TX_ACK;
|
|
if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
|
|
error = ural_sendprot(sc, m0, ni,
|
|
params->ibp_flags & IEEE80211_BPF_RTS ?
|
|
IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
|
|
rate);
|
|
if (error || sc->tx_nfree == 0) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
flags |= RAL_TX_IFS_SIFS;
|
|
}
|
|
|
|
data = STAILQ_FIRST(&sc->tx_free);
|
|
STAILQ_REMOVE_HEAD(&sc->tx_free, next);
|
|
sc->tx_nfree--;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
data->rate = rate;
|
|
|
|
/* XXX need to setup descriptor ourself */
|
|
ural_setup_tx_desc(sc, &data->desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
|
|
m0->m_pkthdr.len, rate);
|
|
|
|
STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
|
|
usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct ural_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
const struct ieee80211_txparam *tp;
|
|
struct ieee80211_key *k;
|
|
uint32_t flags = 0;
|
|
uint16_t dur;
|
|
int error, rate;
|
|
|
|
RAL_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
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 (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
|
|
rate = tp->ucastrate;
|
|
else
|
|
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 *);
|
|
}
|
|
|
|
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 = ural_sendprot(sc, m0, ni, prot, rate);
|
|
if (error || sc->tx_nfree == 0) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
flags |= RAL_TX_IFS_SIFS;
|
|
}
|
|
}
|
|
|
|
data = STAILQ_FIRST(&sc->tx_free);
|
|
STAILQ_REMOVE_HEAD(&sc->tx_free, next);
|
|
sc->tx_nfree--;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
data->rate = rate;
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RAL_TX_ACK;
|
|
flags |= RAL_TX_RETRY(7);
|
|
|
|
dur = ieee80211_ack_duration(ic->ic_rt, rate,
|
|
ic->ic_flags & IEEE80211_F_SHPREAMBLE);
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
}
|
|
|
|
ural_setup_tx_desc(sc, &data->desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
DPRINTFN(10, "sending data frame len=%u rate=%u\n",
|
|
m0->m_pkthdr.len, rate);
|
|
|
|
STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
|
|
usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ural_start(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
|
|
RAL_LOCK(sc);
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
|
|
RAL_UNLOCK(sc);
|
|
return;
|
|
}
|
|
for (;;) {
|
|
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
|
|
if (m == NULL)
|
|
break;
|
|
if (sc->tx_nfree < RAL_TX_MINFREE) {
|
|
IFQ_DRV_PREPEND(&ifp->if_snd, m);
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
break;
|
|
}
|
|
ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
|
|
if (ural_tx_data(sc, m, ni) != 0) {
|
|
ieee80211_free_node(ni);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
ural_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct ural_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) {
|
|
ural_init_locked(sc);
|
|
startall = 1;
|
|
} else
|
|
ural_setpromisc(sc);
|
|
} else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ural_stop(sc);
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
if (startall)
|
|
ieee80211_start_all(ic);
|
|
break;
|
|
case SIOCGIFMEDIA:
|
|
case SIOCSIFMEDIA:
|
|
error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
|
|
break;
|
|
default:
|
|
error = ether_ioctl(ifp, cmd, data);
|
|
break;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_set_testmode(struct ural_softc *sc)
|
|
{
|
|
struct usb_device_request req;
|
|
usb_error_t error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_VENDOR_REQUEST;
|
|
USETW(req.wValue, 4);
|
|
USETW(req.wIndex, 1);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = ural_do_request(sc, &req, NULL);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not set test mode: %s\n",
|
|
usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len)
|
|
{
|
|
struct usb_device_request req;
|
|
usb_error_t error;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_EEPROM;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, addr);
|
|
USETW(req.wLength, len);
|
|
|
|
error = ural_do_request(sc, &req, buf);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
|
|
usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static uint16_t
|
|
ural_read(struct ural_softc *sc, uint16_t reg)
|
|
{
|
|
struct usb_device_request req;
|
|
usb_error_t error;
|
|
uint16_t val;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, sizeof (uint16_t));
|
|
|
|
error = ural_do_request(sc, &req, &val);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not read MAC register: %s\n",
|
|
usbd_errstr(error));
|
|
return 0;
|
|
}
|
|
|
|
return le16toh(val);
|
|
}
|
|
|
|
static void
|
|
ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
|
|
{
|
|
struct usb_device_request req;
|
|
usb_error_t error;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, len);
|
|
|
|
error = ural_do_request(sc, &req, buf);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not read MAC register: %s\n",
|
|
usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val)
|
|
{
|
|
struct usb_device_request req;
|
|
usb_error_t error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_WRITE_MAC;
|
|
USETW(req.wValue, val);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = ural_do_request(sc, &req, NULL);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not write MAC register: %s\n",
|
|
usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
|
|
{
|
|
struct usb_device_request req;
|
|
usb_error_t error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_WRITE_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, len);
|
|
|
|
error = ural_do_request(sc, &req, buf);
|
|
if (error != 0) {
|
|
device_printf(sc->sc_dev, "could not write MAC register: %s\n",
|
|
usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val)
|
|
{
|
|
uint16_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
|
|
break;
|
|
if (ural_pause(sc, hz / 100))
|
|
break;
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev, "could not write to BBP\n");
|
|
return;
|
|
}
|
|
|
|
tmp = reg << 8 | val;
|
|
ural_write(sc, RAL_PHY_CSR7, tmp);
|
|
}
|
|
|
|
static uint8_t
|
|
ural_bbp_read(struct ural_softc *sc, uint8_t reg)
|
|
{
|
|
uint16_t val;
|
|
int ntries;
|
|
|
|
val = RAL_BBP_WRITE | reg << 8;
|
|
ural_write(sc, RAL_PHY_CSR7, val);
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
|
|
break;
|
|
if (ural_pause(sc, hz / 100))
|
|
break;
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev, "could not read BBP\n");
|
|
return 0;
|
|
}
|
|
|
|
return ural_read(sc, RAL_PHY_CSR7) & 0xff;
|
|
}
|
|
|
|
static void
|
|
ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY))
|
|
break;
|
|
if (ural_pause(sc, hz / 100))
|
|
break;
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev, "could not write to RF\n");
|
|
return;
|
|
}
|
|
|
|
tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
|
|
ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff);
|
|
ural_write(sc, RAL_PHY_CSR10, tmp >> 16);
|
|
|
|
/* remember last written value in sc */
|
|
sc->rf_regs[reg] = val;
|
|
|
|
DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
|
|
}
|
|
|
|
static void
|
|
ural_scan_start(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
|
|
RAL_LOCK(sc);
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
ural_set_bssid(sc, ifp->if_broadcastaddr);
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ural_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
RAL_LOCK(sc);
|
|
ural_enable_tsf_sync(sc);
|
|
ural_set_bssid(sc, sc->sc_bssid);
|
|
RAL_UNLOCK(sc);
|
|
|
|
}
|
|
|
|
static void
|
|
ural_set_channel(struct ieee80211com *ic)
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
RAL_LOCK(sc);
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint8_t power, tmp;
|
|
int i, chan;
|
|
|
|
chan = ieee80211_chan2ieee(ic, c);
|
|
if (chan == 0 || chan == IEEE80211_CHAN_ANY)
|
|
return;
|
|
|
|
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(2, "setting channel to %u, txpower to %u\n", chan, power);
|
|
|
|
switch (sc->rf_rev) {
|
|
case RAL_RF_2522:
|
|
ural_rf_write(sc, RAL_RF1, 0x00814);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
break;
|
|
|
|
case RAL_RF_2523:
|
|
ural_rf_write(sc, RAL_RF1, 0x08804);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2524:
|
|
ural_rf_write(sc, RAL_RF1, 0x0c808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2525:
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2525E:
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
|
|
break;
|
|
|
|
case RAL_RF_2526:
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
ural_rf_write(sc, RAL_RF1, 0x08804);
|
|
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
break;
|
|
|
|
/* dual-band RF */
|
|
case RAL_RF_5222:
|
|
for (i = 0; ural_rf5222[i].chan != chan; i++);
|
|
|
|
ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4);
|
|
break;
|
|
}
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR &&
|
|
(ic->ic_flags & IEEE80211_F_SCAN) == 0) {
|
|
/* set Japan filter bit for channel 14 */
|
|
tmp = ural_bbp_read(sc, 70);
|
|
|
|
tmp &= ~RAL_JAPAN_FILTER;
|
|
if (chan == 14)
|
|
tmp |= RAL_JAPAN_FILTER;
|
|
|
|
ural_bbp_write(sc, 70, tmp);
|
|
|
|
/* clear CRC errors */
|
|
ural_read(sc, RAL_STA_CSR0);
|
|
|
|
ural_pause(sc, hz / 100);
|
|
ural_disable_rf_tune(sc);
|
|
}
|
|
|
|
/* XXX doesn't belong here */
|
|
/* update basic rate set */
|
|
ural_set_basicrates(sc, c);
|
|
|
|
/* give the hardware some time to do the switchover */
|
|
ural_pause(sc, hz / 100);
|
|
}
|
|
|
|
/*
|
|
* Disable RF auto-tuning.
|
|
*/
|
|
static void
|
|
ural_disable_rf_tune(struct ural_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
if (sc->rf_rev != RAL_RF_2523) {
|
|
tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
|
|
ural_rf_write(sc, RAL_RF1, tmp);
|
|
}
|
|
|
|
tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
|
|
ural_rf_write(sc, RAL_RF3, tmp);
|
|
|
|
DPRINTFN(2, "disabling RF autotune\n");
|
|
}
|
|
|
|
/*
|
|
* Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
|
|
* synchronization.
|
|
*/
|
|
static void
|
|
ural_enable_tsf_sync(struct ural_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, tmp;
|
|
|
|
/* first, disable TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
|
|
tmp = (16 * vap->iv_bss->ni_intval) << 4;
|
|
ural_write(sc, RAL_TXRX_CSR18, tmp);
|
|
|
|
logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0;
|
|
preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6;
|
|
tmp = logcwmin << 12 | preload;
|
|
ural_write(sc, RAL_TXRX_CSR20, tmp);
|
|
|
|
/* finally, enable TSF synchronization */
|
|
tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN;
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
tmp |= RAL_ENABLE_TSF_SYNC(1);
|
|
else
|
|
tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR;
|
|
ural_write(sc, RAL_TXRX_CSR19, tmp);
|
|
|
|
DPRINTF("enabling TSF synchronization\n");
|
|
}
|
|
|
|
static void
|
|
ural_enable_tsf(struct ural_softc *sc)
|
|
{
|
|
/* first, disable TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
ural_write(sc, RAL_TXRX_CSR19, RAL_ENABLE_TSF | RAL_ENABLE_TSF_SYNC(2));
|
|
}
|
|
|
|
#define RAL_RXTX_TURNAROUND 5 /* us */
|
|
static void
|
|
ural_update_slot(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint16_t slottime, sifs, eifs;
|
|
|
|
slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
|
|
|
|
/*
|
|
* These settings may sound a bit inconsistent but this is what the
|
|
* reference driver does.
|
|
*/
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
sifs = 16 - RAL_RXTX_TURNAROUND;
|
|
eifs = 364;
|
|
} else {
|
|
sifs = 10 - RAL_RXTX_TURNAROUND;
|
|
eifs = 64;
|
|
}
|
|
|
|
ural_write(sc, RAL_MAC_CSR10, slottime);
|
|
ural_write(sc, RAL_MAC_CSR11, sifs);
|
|
ural_write(sc, RAL_MAC_CSR12, eifs);
|
|
}
|
|
|
|
static void
|
|
ural_set_txpreamble(struct ural_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint16_t tmp;
|
|
|
|
tmp = ural_read(sc, RAL_TXRX_CSR10);
|
|
|
|
tmp &= ~RAL_SHORT_PREAMBLE;
|
|
if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
|
|
tmp |= RAL_SHORT_PREAMBLE;
|
|
|
|
ural_write(sc, RAL_TXRX_CSR10, tmp);
|
|
}
|
|
|
|
static void
|
|
ural_set_basicrates(struct ural_softc *sc, const struct ieee80211_channel *c)
|
|
{
|
|
/* XXX wrong, take from rate set */
|
|
/* update basic rate set */
|
|
if (IEEE80211_IS_CHAN_5GHZ(c)) {
|
|
/* 11a basic rates: 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x150);
|
|
} else if (IEEE80211_IS_CHAN_ANYG(c)) {
|
|
/* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
} else {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x3);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_set_bssid(struct ural_softc *sc, const uint8_t *bssid)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = bssid[0] | bssid[1] << 8;
|
|
ural_write(sc, RAL_MAC_CSR5, tmp);
|
|
|
|
tmp = bssid[2] | bssid[3] << 8;
|
|
ural_write(sc, RAL_MAC_CSR6, tmp);
|
|
|
|
tmp = bssid[4] | bssid[5] << 8;
|
|
ural_write(sc, RAL_MAC_CSR7, tmp);
|
|
|
|
DPRINTF("setting BSSID to %6D\n", bssid, ":");
|
|
}
|
|
|
|
static void
|
|
ural_set_macaddr(struct ural_softc *sc, uint8_t *addr)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = addr[0] | addr[1] << 8;
|
|
ural_write(sc, RAL_MAC_CSR2, tmp);
|
|
|
|
tmp = addr[2] | addr[3] << 8;
|
|
ural_write(sc, RAL_MAC_CSR3, tmp);
|
|
|
|
tmp = addr[4] | addr[5] << 8;
|
|
ural_write(sc, RAL_MAC_CSR4, tmp);
|
|
|
|
DPRINTF("setting MAC address to %6D\n", addr, ":");
|
|
}
|
|
|
|
static void
|
|
ural_setpromisc(struct ural_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
uint32_t tmp;
|
|
|
|
tmp = ural_read(sc, RAL_TXRX_CSR2);
|
|
|
|
tmp &= ~RAL_DROP_NOT_TO_ME;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RAL_DROP_NOT_TO_ME;
|
|
|
|
ural_write(sc, RAL_TXRX_CSR2, tmp);
|
|
|
|
DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
|
|
"entering" : "leaving");
|
|
}
|
|
|
|
static void
|
|
ural_update_promisc(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
|
|
return;
|
|
|
|
RAL_LOCK(sc);
|
|
ural_setpromisc(sc);
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static const char *
|
|
ural_get_rf(int rev)
|
|
{
|
|
switch (rev) {
|
|
case RAL_RF_2522: return "RT2522";
|
|
case RAL_RF_2523: return "RT2523";
|
|
case RAL_RF_2524: return "RT2524";
|
|
case RAL_RF_2525: return "RT2525";
|
|
case RAL_RF_2525E: return "RT2525e";
|
|
case RAL_RF_2526: return "RT2526";
|
|
case RAL_RF_5222: return "RT5222";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_read_eeprom(struct ural_softc *sc)
|
|
{
|
|
uint16_t val;
|
|
|
|
ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2);
|
|
val = le16toh(val);
|
|
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 MAC address */
|
|
ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, sc->sc_bssid, 6);
|
|
|
|
/* read default values for BBP registers */
|
|
ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
|
|
|
|
/* read Tx power for all b/g channels */
|
|
ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14);
|
|
}
|
|
|
|
static int
|
|
ural_bbp_init(struct ural_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 (ural_bbp_read(sc, RAL_BBP_VERSION) != 0)
|
|
break;
|
|
if (ural_pause(sc, hz / 100))
|
|
break;
|
|
}
|
|
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(ural_def_bbp); i++)
|
|
ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val);
|
|
|
|
#if 0
|
|
/* initialize BBP registers to values stored in EEPROM */
|
|
for (i = 0; i < 16; i++) {
|
|
if (sc->bbp_prom[i].reg == 0xff)
|
|
continue;
|
|
ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
ural_set_txantenna(struct ural_softc *sc, int antenna)
|
|
{
|
|
uint16_t tmp;
|
|
uint8_t tx;
|
|
|
|
tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
tx |= RAL_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
tx |= RAL_BBP_ANTB;
|
|
else
|
|
tx |= RAL_BBP_DIVERSITY;
|
|
|
|
/* need to force I/Q flip for RF 2525e, 2526 and 5222 */
|
|
if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 ||
|
|
sc->rf_rev == RAL_RF_5222)
|
|
tx |= RAL_BBP_FLIPIQ;
|
|
|
|
ural_bbp_write(sc, RAL_BBP_TX, tx);
|
|
|
|
/* update values in PHY_CSR5 and PHY_CSR6 */
|
|
tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7;
|
|
ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7));
|
|
|
|
tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7;
|
|
ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7));
|
|
}
|
|
|
|
static void
|
|
ural_set_rxantenna(struct ural_softc *sc, int antenna)
|
|
{
|
|
uint8_t rx;
|
|
|
|
rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
rx |= RAL_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
rx |= RAL_BBP_ANTB;
|
|
else
|
|
rx |= RAL_BBP_DIVERSITY;
|
|
|
|
/* need to force no I/Q flip for RF 2525e and 2526 */
|
|
if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526)
|
|
rx &= ~RAL_BBP_FLIPIQ;
|
|
|
|
ural_bbp_write(sc, RAL_BBP_RX, rx);
|
|
}
|
|
|
|
static void
|
|
ural_init_locked(struct ural_softc *sc)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint16_t tmp;
|
|
int i, ntries;
|
|
|
|
RAL_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
ural_set_testmode(sc);
|
|
ural_write(sc, 0x308, 0x00f0); /* XXX magic */
|
|
|
|
ural_stop(sc);
|
|
|
|
/* initialize MAC registers to default values */
|
|
for (i = 0; i < N(ural_def_mac); i++)
|
|
ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val);
|
|
|
|
/* wait for BBP and RF to wake up (this can take a long time!) */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
tmp = ural_read(sc, RAL_MAC_CSR17);
|
|
if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) ==
|
|
(RAL_BBP_AWAKE | RAL_RF_AWAKE))
|
|
break;
|
|
if (ural_pause(sc, hz / 100))
|
|
break;
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev,
|
|
"timeout waiting for BBP/RF to wakeup\n");
|
|
goto fail;
|
|
}
|
|
|
|
/* we're ready! */
|
|
ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY);
|
|
|
|
/* set basic rate set (will be updated later) */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
|
|
if (ural_bbp_init(sc) != 0)
|
|
goto fail;
|
|
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
ural_set_txantenna(sc, sc->tx_ant);
|
|
ural_set_rxantenna(sc, sc->rx_ant);
|
|
|
|
ural_set_macaddr(sc, IF_LLADDR(ifp));
|
|
|
|
/*
|
|
* Allocate Tx and Rx xfer queues.
|
|
*/
|
|
ural_setup_tx_list(sc);
|
|
|
|
/* kick Rx */
|
|
tmp = RAL_DROP_PHY | RAL_DROP_CRC;
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
tmp |= RAL_DROP_CTL | RAL_DROP_BAD_VERSION;
|
|
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
tmp |= RAL_DROP_TODS;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RAL_DROP_NOT_TO_ME;
|
|
}
|
|
ural_write(sc, RAL_TXRX_CSR2, tmp);
|
|
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
usbd_xfer_set_stall(sc->sc_xfer[URAL_BULK_WR]);
|
|
usbd_transfer_start(sc->sc_xfer[URAL_BULK_RD]);
|
|
return;
|
|
|
|
fail: ural_stop(sc);
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
ural_init(void *priv)
|
|
{
|
|
struct ural_softc *sc = priv;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
RAL_LOCK(sc);
|
|
ural_init_locked(sc);
|
|
RAL_UNLOCK(sc);
|
|
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ieee80211_start_all(ic); /* start all vap's */
|
|
}
|
|
|
|
static void
|
|
ural_stop(struct ural_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
RAL_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
|
|
/*
|
|
* Drain all the transfers, if not already drained:
|
|
*/
|
|
RAL_UNLOCK(sc);
|
|
usbd_transfer_drain(sc->sc_xfer[URAL_BULK_WR]);
|
|
usbd_transfer_drain(sc->sc_xfer[URAL_BULK_RD]);
|
|
RAL_LOCK(sc);
|
|
|
|
ural_unsetup_tx_list(sc);
|
|
|
|
/* disable Rx */
|
|
ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX);
|
|
/* reset ASIC and BBP (but won't reset MAC registers!) */
|
|
ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP);
|
|
/* wait a little */
|
|
ural_pause(sc, hz / 10);
|
|
ural_write(sc, RAL_MAC_CSR1, 0);
|
|
/* wait a little */
|
|
ural_pause(sc, hz / 10);
|
|
}
|
|
|
|
static int
|
|
ural_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 ural_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->tx_nfree < RAL_TX_MINFREE) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
RAL_UNLOCK(sc);
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return EIO;
|
|
}
|
|
|
|
ifp->if_opackets++;
|
|
|
|
if (params == NULL) {
|
|
/*
|
|
* Legacy path; interpret frame contents to decide
|
|
* precisely how to send the frame.
|
|
*/
|
|
if (ural_tx_mgt(sc, m, ni) != 0)
|
|
goto bad;
|
|
} else {
|
|
/*
|
|
* Caller supplied explicit parameters to use in
|
|
* sending the frame.
|
|
*/
|
|
if (ural_tx_raw(sc, m, ni, params) != 0)
|
|
goto bad;
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
return 0;
|
|
bad:
|
|
ifp->if_oerrors++;
|
|
RAL_UNLOCK(sc);
|
|
ieee80211_free_node(ni);
|
|
return EIO; /* XXX */
|
|
}
|
|
|
|
static void
|
|
ural_ratectl_start(struct ural_softc *sc, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211vap *vap = ni->ni_vap;
|
|
struct ural_vap *uvp = URAL_VAP(vap);
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
ieee80211_ratectl_node_init(ni);
|
|
|
|
usb_callout_reset(&uvp->ratectl_ch, hz, ural_ratectl_timeout, uvp);
|
|
}
|
|
|
|
static void
|
|
ural_ratectl_timeout(void *arg)
|
|
{
|
|
struct ural_vap *uvp = arg;
|
|
struct ieee80211vap *vap = &uvp->vap;
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
|
|
ieee80211_runtask(ic, &uvp->ratectl_task);
|
|
}
|
|
|
|
static void
|
|
ural_ratectl_task(void *arg, int pending)
|
|
{
|
|
struct ural_vap *uvp = arg;
|
|
struct ieee80211vap *vap = &uvp->vap;
|
|
struct ieee80211com *ic = vap->iv_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211_node *ni = vap->iv_bss;
|
|
int ok, fail;
|
|
int sum, retrycnt;
|
|
|
|
RAL_LOCK(sc);
|
|
/* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof(sc->sta));
|
|
|
|
ok = sc->sta[7] + /* TX ok w/o retry */
|
|
sc->sta[8]; /* TX ok w/ retry */
|
|
fail = sc->sta[9]; /* TX retry-fail count */
|
|
sum = ok+fail;
|
|
retrycnt = sc->sta[8] + fail;
|
|
|
|
ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
|
|
(void) ieee80211_ratectl_rate(ni, NULL, 0);
|
|
|
|
ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */
|
|
|
|
usb_callout_reset(&uvp->ratectl_ch, hz, ural_ratectl_timeout, uvp);
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
ural_pause(struct ural_softc *sc, int timeout)
|
|
{
|
|
|
|
usb_pause_mtx(&sc->sc_mtx, timeout);
|
|
return (0);
|
|
}
|