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freebsd-dev/sys/dev/usb/wlan/if_zyd.c
Matt Macy d7c5a620e2 ifnet: Replace if_addr_lock rwlock with epoch + mutex 
Run on LLNW canaries and tested by pho@

gallatin:
Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5
based ConnectX 4-LX NIC, I see an almost 12% improvement in received
packet rate, and a larger improvement in bytes delivered all the way
to userspace.

When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1,
I see, using nstat -I mce0 1 before the patch:

InMpps OMpps  InGbs  OGbs err TCP Est %CPU syscalls csw     irq GBfree
4.98   0.00   4.42   0.00 4235592     33   83.80 4720653 2149771   1235 247.32
4.73   0.00   4.20   0.00 4025260     33   82.99 4724900 2139833   1204 247.32
4.72   0.00   4.20   0.00 4035252     33   82.14 4719162 2132023   1264 247.32
4.71   0.00   4.21   0.00 4073206     33   83.68 4744973 2123317   1347 247.32
4.72   0.00   4.21   0.00 4061118     33   80.82 4713615 2188091   1490 247.32
4.72   0.00   4.21   0.00 4051675     33   85.29 4727399 2109011   1205 247.32
4.73   0.00   4.21   0.00 4039056     33   84.65 4724735 2102603   1053 247.32

After the patch

InMpps OMpps  InGbs  OGbs err TCP Est %CPU syscalls csw     irq GBfree
5.43   0.00   4.20   0.00 3313143     33   84.96 5434214 1900162   2656 245.51
5.43   0.00   4.20   0.00 3308527     33   85.24 5439695 1809382   2521 245.51
5.42   0.00   4.19   0.00 3316778     33   87.54 5416028 1805835   2256 245.51
5.42   0.00   4.19   0.00 3317673     33   90.44 5426044 1763056   2332 245.51
5.42   0.00   4.19   0.00 3314839     33   88.11 5435732 1792218   2499 245.52
5.44   0.00   4.19   0.00 3293228     33   91.84 5426301 1668597   2121 245.52

Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch

Reviewed by:	gallatin
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D15366
2018-05-18 20:13:34 +00:00

2927 lines
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/* $OpenBSD: if_zyd.c,v 1.52 2007/02/11 00:08:04 jsg Exp $ */
/* $NetBSD: if_zyd.c,v 1.7 2007/06/21 04:04:29 kiyohara Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 2006 by Damien Bergamini <damien.bergamini@free.fr>
* Copyright (c) 2006 by Florian Stoehr <ich@florian-stoehr.de>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* ZyDAS ZD1211/ZD1211B USB WLAN driver.
*/
#include "opt_wlan.h"
#include <sys/param.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/kdb.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#endif
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_ratectl.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#include <dev/usb/wlan/if_zydreg.h>
#include <dev/usb/wlan/if_zydfw.h>
#ifdef USB_DEBUG
static int zyd_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, zyd, CTLFLAG_RW, 0, "USB zyd");
SYSCTL_INT(_hw_usb_zyd, OID_AUTO, debug, CTLFLAG_RWTUN, &zyd_debug, 0,
"zyd debug level");
enum {
ZYD_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
ZYD_DEBUG_RECV = 0x00000002, /* basic recv operation */
ZYD_DEBUG_RESET = 0x00000004, /* reset processing */
ZYD_DEBUG_INIT = 0x00000008, /* device init */
ZYD_DEBUG_TX_PROC = 0x00000010, /* tx ISR proc */
ZYD_DEBUG_RX_PROC = 0x00000020, /* rx ISR proc */
ZYD_DEBUG_STATE = 0x00000040, /* 802.11 state transitions */
ZYD_DEBUG_STAT = 0x00000080, /* statistic */
ZYD_DEBUG_FW = 0x00000100, /* firmware */
ZYD_DEBUG_CMD = 0x00000200, /* fw commands */
ZYD_DEBUG_ANY = 0xffffffff
};
#define DPRINTF(sc, m, fmt, ...) do { \
if (zyd_debug & (m)) \
printf("%s: " fmt, __func__, ## __VA_ARGS__); \
} while (0)
#else
#define DPRINTF(sc, m, fmt, ...) do { \
(void) sc; \
} while (0)
#endif
#define zyd_do_request(sc,req,data) \
usbd_do_request_flags((sc)->sc_udev, &(sc)->sc_mtx, req, data, 0, NULL, 5000)
static device_probe_t zyd_match;
static device_attach_t zyd_attach;
static device_detach_t zyd_detach;
static usb_callback_t zyd_intr_read_callback;
static usb_callback_t zyd_intr_write_callback;
static usb_callback_t zyd_bulk_read_callback;
static usb_callback_t zyd_bulk_write_callback;
static struct ieee80211vap *zyd_vap_create(struct ieee80211com *,
const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
const uint8_t [IEEE80211_ADDR_LEN],
const uint8_t [IEEE80211_ADDR_LEN]);
static void zyd_vap_delete(struct ieee80211vap *);
static void zyd_tx_free(struct zyd_tx_data *, int);
static void zyd_setup_tx_list(struct zyd_softc *);
static void zyd_unsetup_tx_list(struct zyd_softc *);
static int zyd_newstate(struct ieee80211vap *, enum ieee80211_state, int);
static int zyd_cmd(struct zyd_softc *, uint16_t, const void *, int,
void *, int, int);
static int zyd_read16(struct zyd_softc *, uint16_t, uint16_t *);
static int zyd_read32(struct zyd_softc *, uint16_t, uint32_t *);
static int zyd_write16(struct zyd_softc *, uint16_t, uint16_t);
static int zyd_write32(struct zyd_softc *, uint16_t, uint32_t);
static int zyd_rfwrite(struct zyd_softc *, uint32_t);
static int zyd_lock_phy(struct zyd_softc *);
static int zyd_unlock_phy(struct zyd_softc *);
static int zyd_rf_attach(struct zyd_softc *, uint8_t);
static const char *zyd_rf_name(uint8_t);
static int zyd_hw_init(struct zyd_softc *);
static int zyd_read_pod(struct zyd_softc *);
static int zyd_read_eeprom(struct zyd_softc *);
static int zyd_get_macaddr(struct zyd_softc *);
static int zyd_set_macaddr(struct zyd_softc *, const uint8_t *);
static int zyd_set_bssid(struct zyd_softc *, const uint8_t *);
static int zyd_switch_radio(struct zyd_softc *, int);
static int zyd_set_led(struct zyd_softc *, int, int);
static void zyd_set_multi(struct zyd_softc *);
static void zyd_update_mcast(struct ieee80211com *);
static int zyd_set_rxfilter(struct zyd_softc *);
static void zyd_set_chan(struct zyd_softc *, struct ieee80211_channel *);
static int zyd_set_beacon_interval(struct zyd_softc *, int);
static void zyd_rx_data(struct usb_xfer *, int, uint16_t);
static int zyd_tx_start(struct zyd_softc *, struct mbuf *,
struct ieee80211_node *);
static int zyd_transmit(struct ieee80211com *, struct mbuf *);
static void zyd_start(struct zyd_softc *);
static int zyd_raw_xmit(struct ieee80211_node *, struct mbuf *,
const struct ieee80211_bpf_params *);
static void zyd_parent(struct ieee80211com *);
static void zyd_init_locked(struct zyd_softc *);
static void zyd_stop(struct zyd_softc *);
static int zyd_loadfirmware(struct zyd_softc *);
static void zyd_scan_start(struct ieee80211com *);
static void zyd_scan_end(struct ieee80211com *);
static void zyd_getradiocaps(struct ieee80211com *, int, int *,
struct ieee80211_channel[]);
static void zyd_set_channel(struct ieee80211com *);
static int zyd_rfmd_init(struct zyd_rf *);
static int zyd_rfmd_switch_radio(struct zyd_rf *, int);
static int zyd_rfmd_set_channel(struct zyd_rf *, uint8_t);
static int zyd_al2230_init(struct zyd_rf *);
static int zyd_al2230_switch_radio(struct zyd_rf *, int);
static int zyd_al2230_set_channel(struct zyd_rf *, uint8_t);
static int zyd_al2230_set_channel_b(struct zyd_rf *, uint8_t);
static int zyd_al2230_init_b(struct zyd_rf *);
static int zyd_al7230B_init(struct zyd_rf *);
static int zyd_al7230B_switch_radio(struct zyd_rf *, int);
static int zyd_al7230B_set_channel(struct zyd_rf *, uint8_t);
static int zyd_al2210_init(struct zyd_rf *);
static int zyd_al2210_switch_radio(struct zyd_rf *, int);
static int zyd_al2210_set_channel(struct zyd_rf *, uint8_t);
static int zyd_gct_init(struct zyd_rf *);
static int zyd_gct_switch_radio(struct zyd_rf *, int);
static int zyd_gct_set_channel(struct zyd_rf *, uint8_t);
static int zyd_gct_mode(struct zyd_rf *);
static int zyd_gct_set_channel_synth(struct zyd_rf *, int, int);
static int zyd_gct_write(struct zyd_rf *, uint16_t);
static int zyd_gct_txgain(struct zyd_rf *, uint8_t);
static int zyd_maxim2_init(struct zyd_rf *);
static int zyd_maxim2_switch_radio(struct zyd_rf *, int);
static int zyd_maxim2_set_channel(struct zyd_rf *, uint8_t);
static const struct zyd_phy_pair zyd_def_phy[] = ZYD_DEF_PHY;
static const struct zyd_phy_pair zyd_def_phyB[] = ZYD_DEF_PHYB;
/* various supported device vendors/products */
#define ZYD_ZD1211 0
#define ZYD_ZD1211B 1
#define ZYD_ZD1211_DEV(v,p) \
{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, ZYD_ZD1211) }
#define ZYD_ZD1211B_DEV(v,p) \
{ USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, ZYD_ZD1211B) }
static const STRUCT_USB_HOST_ID zyd_devs[] = {
/* ZYD_ZD1211 */
ZYD_ZD1211_DEV(3COM2, 3CRUSB10075),
ZYD_ZD1211_DEV(ABOCOM, WL54),
ZYD_ZD1211_DEV(ASUS, WL159G),
ZYD_ZD1211_DEV(CYBERTAN, TG54USB),
ZYD_ZD1211_DEV(DRAYTEK, VIGOR550),
ZYD_ZD1211_DEV(PLANEX2, GWUS54GD),
ZYD_ZD1211_DEV(PLANEX2, GWUS54GZL),
ZYD_ZD1211_DEV(PLANEX3, GWUS54GZ),
ZYD_ZD1211_DEV(PLANEX3, GWUS54MINI),
ZYD_ZD1211_DEV(SAGEM, XG760A),
ZYD_ZD1211_DEV(SENAO, NUB8301),
ZYD_ZD1211_DEV(SITECOMEU, WL113),
ZYD_ZD1211_DEV(SWEEX, ZD1211),
ZYD_ZD1211_DEV(TEKRAM, QUICKWLAN),
ZYD_ZD1211_DEV(TEKRAM, ZD1211_1),
ZYD_ZD1211_DEV(TEKRAM, ZD1211_2),
ZYD_ZD1211_DEV(TWINMOS, G240),
ZYD_ZD1211_DEV(UMEDIA, ALL0298V2),
ZYD_ZD1211_DEV(UMEDIA, TEW429UB_A),
ZYD_ZD1211_DEV(UMEDIA, TEW429UB),
ZYD_ZD1211_DEV(WISTRONNEWEB, UR055G),
ZYD_ZD1211_DEV(ZCOM, ZD1211),
ZYD_ZD1211_DEV(ZYDAS, ZD1211),
ZYD_ZD1211_DEV(ZYXEL, AG225H),
ZYD_ZD1211_DEV(ZYXEL, ZYAIRG220),
ZYD_ZD1211_DEV(ZYXEL, G200V2),
/* ZYD_ZD1211B */
ZYD_ZD1211B_DEV(ACCTON, SMCWUSBG_NF),
ZYD_ZD1211B_DEV(ACCTON, SMCWUSBG),
ZYD_ZD1211B_DEV(ACCTON, ZD1211B),
ZYD_ZD1211B_DEV(ASUS, A9T_WIFI),
ZYD_ZD1211B_DEV(BELKIN, F5D7050_V4000),
ZYD_ZD1211B_DEV(BELKIN, ZD1211B),
ZYD_ZD1211B_DEV(CISCOLINKSYS, WUSBF54G),
ZYD_ZD1211B_DEV(FIBERLINE, WL430U),
ZYD_ZD1211B_DEV(MELCO, KG54L),
ZYD_ZD1211B_DEV(PHILIPS, SNU5600),
ZYD_ZD1211B_DEV(PLANEX2, GW_US54GXS),
ZYD_ZD1211B_DEV(SAGEM, XG76NA),
ZYD_ZD1211B_DEV(SITECOMEU, ZD1211B),
ZYD_ZD1211B_DEV(UMEDIA, TEW429UBC1),
ZYD_ZD1211B_DEV(USR, USR5423),
ZYD_ZD1211B_DEV(VTECH, ZD1211B),
ZYD_ZD1211B_DEV(ZCOM, ZD1211B),
ZYD_ZD1211B_DEV(ZYDAS, ZD1211B),
ZYD_ZD1211B_DEV(ZYXEL, M202),
ZYD_ZD1211B_DEV(ZYXEL, G202),
ZYD_ZD1211B_DEV(ZYXEL, G220V2)
};
static const struct usb_config zyd_config[ZYD_N_TRANSFER] = {
[ZYD_BULK_WR] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = ZYD_MAX_TXBUFSZ,
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = zyd_bulk_write_callback,
.ep_index = 0,
.timeout = 10000, /* 10 seconds */
},
[ZYD_BULK_RD] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = ZYX_MAX_RXBUFSZ,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = zyd_bulk_read_callback,
.ep_index = 0,
},
[ZYD_INTR_WR] = {
.type = UE_BULK_INTR,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = sizeof(struct zyd_cmd),
.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
.callback = zyd_intr_write_callback,
.timeout = 1000, /* 1 second */
.ep_index = 1,
},
[ZYD_INTR_RD] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = sizeof(struct zyd_cmd),
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.callback = zyd_intr_read_callback,
},
};
#define zyd_read16_m(sc, val, data) do { \
error = zyd_read16(sc, val, data); \
if (error != 0) \
goto fail; \
} while (0)
#define zyd_write16_m(sc, val, data) do { \
error = zyd_write16(sc, val, data); \
if (error != 0) \
goto fail; \
} while (0)
#define zyd_read32_m(sc, val, data) do { \
error = zyd_read32(sc, val, data); \
if (error != 0) \
goto fail; \
} while (0)
#define zyd_write32_m(sc, val, data) do { \
error = zyd_write32(sc, val, data); \
if (error != 0) \
goto fail; \
} while (0)
static int
zyd_match(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != ZYD_CONFIG_INDEX)
return (ENXIO);
if (uaa->info.bIfaceIndex != ZYD_IFACE_INDEX)
return (ENXIO);
return (usbd_lookup_id_by_uaa(zyd_devs, sizeof(zyd_devs), uaa));
}
static int
zyd_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct zyd_softc *sc = device_get_softc(dev);
struct ieee80211com *ic = &sc->sc_ic;
uint8_t iface_index;
int error;
if (uaa->info.bcdDevice < 0x4330) {
device_printf(dev, "device version mismatch: 0x%X "
"(only >= 43.30 supported)\n",
uaa->info.bcdDevice);
return (EINVAL);
}
device_set_usb_desc(dev);
sc->sc_dev = dev;
sc->sc_udev = uaa->device;
sc->sc_macrev = USB_GET_DRIVER_INFO(uaa);
mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev),
MTX_NETWORK_LOCK, MTX_DEF);
STAILQ_INIT(&sc->sc_rqh);
mbufq_init(&sc->sc_snd, ifqmaxlen);
iface_index = ZYD_IFACE_INDEX;
error = usbd_transfer_setup(uaa->device,
&iface_index, sc->sc_xfer, zyd_config,
ZYD_N_TRANSFER, sc, &sc->sc_mtx);
if (error) {
device_printf(dev, "could not allocate USB transfers, "
"err=%s\n", usbd_errstr(error));
goto detach;
}
ZYD_LOCK(sc);
if ((error = zyd_get_macaddr(sc)) != 0) {
device_printf(sc->sc_dev, "could not read EEPROM\n");
ZYD_UNLOCK(sc);
goto detach;
}
ZYD_UNLOCK(sc);
ic->ic_softc = sc;
ic->ic_name = device_get_nameunit(dev);
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
ic->ic_opmode = IEEE80211_M_STA;
/* set device capabilities */
ic->ic_caps =
IEEE80211_C_STA /* station mode */
| IEEE80211_C_MONITOR /* monitor mode */
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
| IEEE80211_C_SHSLOT /* short slot time supported */
| IEEE80211_C_BGSCAN /* capable of bg scanning */
| IEEE80211_C_WPA /* 802.11i */
;
zyd_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
ic->ic_channels);
ieee80211_ifattach(ic);
ic->ic_raw_xmit = zyd_raw_xmit;
ic->ic_scan_start = zyd_scan_start;
ic->ic_scan_end = zyd_scan_end;
ic->ic_getradiocaps = zyd_getradiocaps;
ic->ic_set_channel = zyd_set_channel;
ic->ic_vap_create = zyd_vap_create;
ic->ic_vap_delete = zyd_vap_delete;
ic->ic_update_mcast = zyd_update_mcast;
ic->ic_update_promisc = zyd_update_mcast;
ic->ic_parent = zyd_parent;
ic->ic_transmit = zyd_transmit;
ieee80211_radiotap_attach(ic,
&sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
ZYD_TX_RADIOTAP_PRESENT,
&sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
ZYD_RX_RADIOTAP_PRESENT);
if (bootverbose)
ieee80211_announce(ic);
return (0);
detach:
zyd_detach(dev);
return (ENXIO); /* failure */
}
static void
zyd_drain_mbufq(struct zyd_softc *sc)
{
struct mbuf *m;
struct ieee80211_node *ni;
ZYD_LOCK_ASSERT(sc, MA_OWNED);
while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
m->m_pkthdr.rcvif = NULL;
ieee80211_free_node(ni);
m_freem(m);
}
}
static int
zyd_detach(device_t dev)
{
struct zyd_softc *sc = device_get_softc(dev);
struct ieee80211com *ic = &sc->sc_ic;
unsigned int x;
/*
* Prevent further allocations from RX/TX data
* lists and ioctls:
*/
ZYD_LOCK(sc);
sc->sc_flags |= ZYD_FLAG_DETACHED;
zyd_drain_mbufq(sc);
STAILQ_INIT(&sc->tx_q);
STAILQ_INIT(&sc->tx_free);
ZYD_UNLOCK(sc);
/* drain USB transfers */
for (x = 0; x != ZYD_N_TRANSFER; x++)
usbd_transfer_drain(sc->sc_xfer[x]);
/* free TX list, if any */
ZYD_LOCK(sc);
zyd_unsetup_tx_list(sc);
ZYD_UNLOCK(sc);
/* free USB transfers and some data buffers */
usbd_transfer_unsetup(sc->sc_xfer, ZYD_N_TRANSFER);
if (ic->ic_softc == sc)
ieee80211_ifdetach(ic);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static struct ieee80211vap *
zyd_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
enum ieee80211_opmode opmode, int flags,
const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct zyd_vap *zvp;
struct ieee80211vap *vap;
if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
return (NULL);
zvp = malloc(sizeof(struct zyd_vap), M_80211_VAP, M_WAITOK | M_ZERO);
vap = &zvp->vap;
/* enable s/w bmiss handling for sta mode */
if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
/* out of memory */
free(zvp, M_80211_VAP);
return (NULL);
}
/* override state transition machine */
zvp->newstate = vap->iv_newstate;
vap->iv_newstate = zyd_newstate;
ieee80211_ratectl_init(vap);
ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
/* complete setup */
ieee80211_vap_attach(vap, ieee80211_media_change,
ieee80211_media_status, mac);
ic->ic_opmode = opmode;
return (vap);
}
static void
zyd_vap_delete(struct ieee80211vap *vap)
{
struct zyd_vap *zvp = ZYD_VAP(vap);
ieee80211_ratectl_deinit(vap);
ieee80211_vap_detach(vap);
free(zvp, M_80211_VAP);
}
static void
zyd_tx_free(struct zyd_tx_data *data, int txerr)
{
struct zyd_softc *sc = data->sc;
if (data->m != NULL) {
ieee80211_tx_complete(data->ni, data->m, txerr);
data->m = NULL;
data->ni = NULL;
}
STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
sc->tx_nfree++;
}
static void
zyd_setup_tx_list(struct zyd_softc *sc)
{
struct zyd_tx_data *data;
int i;
sc->tx_nfree = 0;
STAILQ_INIT(&sc->tx_q);
STAILQ_INIT(&sc->tx_free);
for (i = 0; i < ZYD_TX_LIST_CNT; i++) {
data = &sc->tx_data[i];
data->sc = sc;
STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
sc->tx_nfree++;
}
}
static void
zyd_unsetup_tx_list(struct zyd_softc *sc)
{
struct zyd_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 < ZYD_TX_LIST_CNT; 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
zyd_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct zyd_vap *zvp = ZYD_VAP(vap);
struct ieee80211com *ic = vap->iv_ic;
struct zyd_softc *sc = ic->ic_softc;
int error;
DPRINTF(sc, ZYD_DEBUG_STATE, "%s: %s -> %s\n", __func__,
ieee80211_state_name[vap->iv_state],
ieee80211_state_name[nstate]);
IEEE80211_UNLOCK(ic);
ZYD_LOCK(sc);
switch (nstate) {
case IEEE80211_S_AUTH:
zyd_set_chan(sc, ic->ic_curchan);
break;
case IEEE80211_S_RUN:
if (vap->iv_opmode == IEEE80211_M_MONITOR)
break;
/* turn link LED on */
error = zyd_set_led(sc, ZYD_LED1, 1);
if (error != 0)
break;
/* make data LED blink upon Tx */
zyd_write32_m(sc, sc->sc_fwbase + ZYD_FW_LINK_STATUS, 1);
IEEE80211_ADDR_COPY(sc->sc_bssid, vap->iv_bss->ni_bssid);
zyd_set_bssid(sc, sc->sc_bssid);
break;
default:
break;
}
fail:
ZYD_UNLOCK(sc);
IEEE80211_LOCK(ic);
return (zvp->newstate(vap, nstate, arg));
}
/*
* Callback handler for interrupt transfer
*/
static void
zyd_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct zyd_softc *sc = usbd_xfer_softc(xfer);
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
struct ieee80211_node *ni;
struct zyd_cmd *cmd = &sc->sc_ibuf;
struct usb_page_cache *pc;
int datalen;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, cmd, sizeof(*cmd));
switch (le16toh(cmd->code)) {
case ZYD_NOTIF_RETRYSTATUS:
{
struct zyd_notif_retry *retry =
(struct zyd_notif_retry *)cmd->data;
uint16_t count = le16toh(retry->count);
DPRINTF(sc, ZYD_DEBUG_TX_PROC,
"retry intr: rate=0x%x addr=%s count=%d (0x%x)\n",
le16toh(retry->rate), ether_sprintf(retry->macaddr),
count & 0xff, count);
/*
* Find the node to which the packet was sent and
* update its retry statistics. In BSS mode, this node
* is the AP we're associated to so no lookup is
* actually needed.
*/
ni = ieee80211_find_txnode(vap, retry->macaddr);
if (ni != NULL) {
struct ieee80211_ratectl_tx_status *txs =
&sc->sc_txs;
int retrycnt = count & 0xff;
txs->flags =
IEEE80211_RATECTL_STATUS_LONG_RETRY;
txs->long_retries = retrycnt;
if (count & 0x100) {
txs->status =
IEEE80211_RATECTL_TX_FAIL_LONG;
} else {
txs->status =
IEEE80211_RATECTL_TX_SUCCESS;
}
ieee80211_ratectl_tx_complete(ni, txs);
ieee80211_free_node(ni);
}
if (count & 0x100)
/* too many retries */
if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS,
1);
break;
}
case ZYD_NOTIF_IORD:
{
struct zyd_rq *rqp;
if (le16toh(*(uint16_t *)cmd->data) == ZYD_CR_INTERRUPT)
break; /* HMAC interrupt */
datalen = actlen - sizeof(cmd->code);
datalen -= 2; /* XXX: padding? */
STAILQ_FOREACH(rqp, &sc->sc_rqh, rq) {
int i;
int count;
if (rqp->olen != datalen)
continue;
count = rqp->olen / sizeof(struct zyd_pair);
for (i = 0; i < count; i++) {
if (*(((const uint16_t *)rqp->idata) + i) !=
(((struct zyd_pair *)cmd->data) + i)->reg)
break;
}
if (i != count)
continue;
/* copy answer into caller-supplied buffer */
memcpy(rqp->odata, cmd->data, rqp->olen);
DPRINTF(sc, ZYD_DEBUG_CMD,
"command %p complete, data = %*D \n",
rqp, rqp->olen, (char *)rqp->odata, ":");
wakeup(rqp); /* wakeup caller */
break;
}
if (rqp == NULL) {
device_printf(sc->sc_dev,
"unexpected IORD notification %*D\n",
datalen, cmd->data, ":");
}
break;
}
default:
device_printf(sc->sc_dev, "unknown notification %x\n",
le16toh(cmd->code));
}
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default: /* Error */
DPRINTF(sc, ZYD_DEBUG_CMD, "error = %s\n",
usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static void
zyd_intr_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct zyd_softc *sc = usbd_xfer_softc(xfer);
struct zyd_rq *rqp, *cmd;
struct usb_page_cache *pc;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
cmd = usbd_xfer_get_priv(xfer);
DPRINTF(sc, ZYD_DEBUG_CMD, "command %p transferred\n", cmd);
STAILQ_FOREACH(rqp, &sc->sc_rqh, rq) {
/* Ensure the cached rq pointer is still valid */
if (rqp == cmd &&
(rqp->flags & ZYD_CMD_FLAG_READ) == 0)
wakeup(rqp); /* wakeup caller */
}
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
STAILQ_FOREACH(rqp, &sc->sc_rqh, rq) {
if (rqp->flags & ZYD_CMD_FLAG_SENT)
continue;
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, rqp->cmd, rqp->ilen);
usbd_xfer_set_frame_len(xfer, 0, rqp->ilen);
usbd_xfer_set_priv(xfer, rqp);
rqp->flags |= ZYD_CMD_FLAG_SENT;
usbd_transfer_submit(xfer);
break;
}
break;
default: /* Error */
DPRINTF(sc, ZYD_DEBUG_ANY, "error = %s\n",
usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static int
zyd_cmd(struct zyd_softc *sc, uint16_t code, const void *idata, int ilen,
void *odata, int olen, int flags)
{
struct zyd_cmd cmd;
struct zyd_rq rq;
int error;
if (ilen > (int)sizeof(cmd.data))
return (EINVAL);
cmd.code = htole16(code);
memcpy(cmd.data, idata, ilen);
DPRINTF(sc, ZYD_DEBUG_CMD, "sending cmd %p = %*D\n",
&rq, ilen, idata, ":");
rq.cmd = &cmd;
rq.idata = idata;
rq.odata = odata;
rq.ilen = sizeof(uint16_t) + ilen;
rq.olen = olen;
rq.flags = flags;
STAILQ_INSERT_TAIL(&sc->sc_rqh, &rq, rq);
usbd_transfer_start(sc->sc_xfer[ZYD_INTR_RD]);
usbd_transfer_start(sc->sc_xfer[ZYD_INTR_WR]);
/* wait at most one second for command reply */
error = mtx_sleep(&rq, &sc->sc_mtx, 0 , "zydcmd", hz);
if (error)
device_printf(sc->sc_dev, "command timeout\n");
STAILQ_REMOVE(&sc->sc_rqh, &rq, zyd_rq, rq);
DPRINTF(sc, ZYD_DEBUG_CMD, "finsihed cmd %p, error = %d \n",
&rq, error);
return (error);
}
static int
zyd_read16(struct zyd_softc *sc, uint16_t reg, uint16_t *val)
{
struct zyd_pair tmp;
int error;
reg = htole16(reg);
error = zyd_cmd(sc, ZYD_CMD_IORD, &reg, sizeof(reg), &tmp, sizeof(tmp),
ZYD_CMD_FLAG_READ);
if (error == 0)
*val = le16toh(tmp.val);
return (error);
}
static int
zyd_read32(struct zyd_softc *sc, uint16_t reg, uint32_t *val)
{
struct zyd_pair tmp[2];
uint16_t regs[2];
int error;
regs[0] = htole16(ZYD_REG32_HI(reg));
regs[1] = htole16(ZYD_REG32_LO(reg));
error = zyd_cmd(sc, ZYD_CMD_IORD, regs, sizeof(regs), tmp, sizeof(tmp),
ZYD_CMD_FLAG_READ);
if (error == 0)
*val = le16toh(tmp[0].val) << 16 | le16toh(tmp[1].val);
return (error);
}
static int
zyd_write16(struct zyd_softc *sc, uint16_t reg, uint16_t val)
{
struct zyd_pair pair;
pair.reg = htole16(reg);
pair.val = htole16(val);
return zyd_cmd(sc, ZYD_CMD_IOWR, &pair, sizeof(pair), NULL, 0, 0);
}
static int
zyd_write32(struct zyd_softc *sc, uint16_t reg, uint32_t val)
{
struct zyd_pair pair[2];
pair[0].reg = htole16(ZYD_REG32_HI(reg));
pair[0].val = htole16(val >> 16);
pair[1].reg = htole16(ZYD_REG32_LO(reg));
pair[1].val = htole16(val & 0xffff);
return zyd_cmd(sc, ZYD_CMD_IOWR, pair, sizeof(pair), NULL, 0, 0);
}
static int
zyd_rfwrite(struct zyd_softc *sc, uint32_t val)
{
struct zyd_rf *rf = &sc->sc_rf;
struct zyd_rfwrite_cmd req;
uint16_t cr203;
int error, i;
zyd_read16_m(sc, ZYD_CR203, &cr203);
cr203 &= ~(ZYD_RF_IF_LE | ZYD_RF_CLK | ZYD_RF_DATA);
req.code = htole16(2);
req.width = htole16(rf->width);
for (i = 0; i < rf->width; i++) {
req.bit[i] = htole16(cr203);
if (val & (1 << (rf->width - 1 - i)))
req.bit[i] |= htole16(ZYD_RF_DATA);
}
error = zyd_cmd(sc, ZYD_CMD_RFCFG, &req, 4 + 2 * rf->width, NULL, 0, 0);
fail:
return (error);
}
static int
zyd_rfwrite_cr(struct zyd_softc *sc, uint32_t val)
{
int error;
zyd_write16_m(sc, ZYD_CR244, (val >> 16) & 0xff);
zyd_write16_m(sc, ZYD_CR243, (val >> 8) & 0xff);
zyd_write16_m(sc, ZYD_CR242, (val >> 0) & 0xff);
fail:
return (error);
}
static int
zyd_lock_phy(struct zyd_softc *sc)
{
int error;
uint32_t tmp;
zyd_read32_m(sc, ZYD_MAC_MISC, &tmp);
tmp &= ~ZYD_UNLOCK_PHY_REGS;
zyd_write32_m(sc, ZYD_MAC_MISC, tmp);
fail:
return (error);
}
static int
zyd_unlock_phy(struct zyd_softc *sc)
{
int error;
uint32_t tmp;
zyd_read32_m(sc, ZYD_MAC_MISC, &tmp);
tmp |= ZYD_UNLOCK_PHY_REGS;
zyd_write32_m(sc, ZYD_MAC_MISC, tmp);
fail:
return (error);
}
/*
* RFMD RF methods.
*/
static int
zyd_rfmd_init(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini[] = ZYD_RFMD_PHY;
static const uint32_t rfini[] = ZYD_RFMD_RF;
int i, error;
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++) {
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
}
/* init RFMD radio */
for (i = 0; i < nitems(rfini); i++) {
if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
return (error);
}
fail:
return (error);
}
static int
zyd_rfmd_switch_radio(struct zyd_rf *rf, int on)
{
int error;
struct zyd_softc *sc = rf->rf_sc;
zyd_write16_m(sc, ZYD_CR10, on ? 0x89 : 0x15);
zyd_write16_m(sc, ZYD_CR11, on ? 0x00 : 0x81);
fail:
return (error);
}
static int
zyd_rfmd_set_channel(struct zyd_rf *rf, uint8_t chan)
{
int error;
struct zyd_softc *sc = rf->rf_sc;
static const struct {
uint32_t r1, r2;
} rfprog[] = ZYD_RFMD_CHANTABLE;
error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
if (error != 0)
goto fail;
error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
if (error != 0)
goto fail;
fail:
return (error);
}
/*
* AL2230 RF methods.
*/
static int
zyd_al2230_init(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini[] = ZYD_AL2230_PHY;
static const struct zyd_phy_pair phy2230s[] = ZYD_AL2230S_PHY_INIT;
static const struct zyd_phy_pair phypll[] = {
{ ZYD_CR251, 0x2f }, { ZYD_CR251, 0x3f },
{ ZYD_CR138, 0x28 }, { ZYD_CR203, 0x06 }
};
static const uint32_t rfini1[] = ZYD_AL2230_RF_PART1;
static const uint32_t rfini2[] = ZYD_AL2230_RF_PART2;
static const uint32_t rfini3[] = ZYD_AL2230_RF_PART3;
int i, error;
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++)
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0) {
for (i = 0; i < nitems(phy2230s); i++)
zyd_write16_m(sc, phy2230s[i].reg, phy2230s[i].val);
}
/* init AL2230 radio */
for (i = 0; i < nitems(rfini1); i++) {
error = zyd_rfwrite(sc, rfini1[i]);
if (error != 0)
goto fail;
}
if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0)
error = zyd_rfwrite(sc, 0x000824);
else
error = zyd_rfwrite(sc, 0x0005a4);
if (error != 0)
goto fail;
for (i = 0; i < nitems(rfini2); i++) {
error = zyd_rfwrite(sc, rfini2[i]);
if (error != 0)
goto fail;
}
for (i = 0; i < nitems(phypll); i++)
zyd_write16_m(sc, phypll[i].reg, phypll[i].val);
for (i = 0; i < nitems(rfini3); i++) {
error = zyd_rfwrite(sc, rfini3[i]);
if (error != 0)
goto fail;
}
fail:
return (error);
}
static int
zyd_al2230_fini(struct zyd_rf *rf)
{
int error, i;
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phy[] = ZYD_AL2230_PHY_FINI_PART1;
for (i = 0; i < nitems(phy); i++)
zyd_write16_m(sc, phy[i].reg, phy[i].val);
if (sc->sc_newphy != 0)
zyd_write16_m(sc, ZYD_CR9, 0xe1);
zyd_write16_m(sc, ZYD_CR203, 0x6);
fail:
return (error);
}
static int
zyd_al2230_init_b(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phy1[] = ZYD_AL2230_PHY_PART1;
static const struct zyd_phy_pair phy2[] = ZYD_AL2230_PHY_PART2;
static const struct zyd_phy_pair phy3[] = ZYD_AL2230_PHY_PART3;
static const struct zyd_phy_pair phy2230s[] = ZYD_AL2230S_PHY_INIT;
static const struct zyd_phy_pair phyini[] = ZYD_AL2230_PHY_B;
static const uint32_t rfini_part1[] = ZYD_AL2230_RF_B_PART1;
static const uint32_t rfini_part2[] = ZYD_AL2230_RF_B_PART2;
static const uint32_t rfini_part3[] = ZYD_AL2230_RF_B_PART3;
static const uint32_t zyd_al2230_chtable[][3] = ZYD_AL2230_CHANTABLE;
int i, error;
for (i = 0; i < nitems(phy1); i++)
zyd_write16_m(sc, phy1[i].reg, phy1[i].val);
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++)
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0) {
for (i = 0; i < nitems(phy2230s); i++)
zyd_write16_m(sc, phy2230s[i].reg, phy2230s[i].val);
}
for (i = 0; i < 3; i++) {
error = zyd_rfwrite_cr(sc, zyd_al2230_chtable[0][i]);
if (error != 0)
return (error);
}
for (i = 0; i < nitems(rfini_part1); i++) {
error = zyd_rfwrite_cr(sc, rfini_part1[i]);
if (error != 0)
return (error);
}
if (sc->sc_rfrev == ZYD_RF_AL2230S || sc->sc_al2230s != 0)
error = zyd_rfwrite(sc, 0x241000);
else
error = zyd_rfwrite(sc, 0x25a000);
if (error != 0)
goto fail;
for (i = 0; i < nitems(rfini_part2); i++) {
error = zyd_rfwrite_cr(sc, rfini_part2[i]);
if (error != 0)
return (error);
}
for (i = 0; i < nitems(phy2); i++)
zyd_write16_m(sc, phy2[i].reg, phy2[i].val);
for (i = 0; i < nitems(rfini_part3); i++) {
error = zyd_rfwrite_cr(sc, rfini_part3[i]);
if (error != 0)
return (error);
}
for (i = 0; i < nitems(phy3); i++)
zyd_write16_m(sc, phy3[i].reg, phy3[i].val);
error = zyd_al2230_fini(rf);
fail:
return (error);
}
static int
zyd_al2230_switch_radio(struct zyd_rf *rf, int on)
{
struct zyd_softc *sc = rf->rf_sc;
int error, on251 = (sc->sc_macrev == ZYD_ZD1211) ? 0x3f : 0x7f;
zyd_write16_m(sc, ZYD_CR11, on ? 0x00 : 0x04);
zyd_write16_m(sc, ZYD_CR251, on ? on251 : 0x2f);
fail:
return (error);
}
static int
zyd_al2230_set_channel(struct zyd_rf *rf, uint8_t chan)
{
int error, i;
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phy1[] = {
{ ZYD_CR138, 0x28 }, { ZYD_CR203, 0x06 },
};
static const struct {
uint32_t r1, r2, r3;
} rfprog[] = ZYD_AL2230_CHANTABLE;
error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
if (error != 0)
goto fail;
error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
if (error != 0)
goto fail;
error = zyd_rfwrite(sc, rfprog[chan - 1].r3);
if (error != 0)
goto fail;
for (i = 0; i < nitems(phy1); i++)
zyd_write16_m(sc, phy1[i].reg, phy1[i].val);
fail:
return (error);
}
static int
zyd_al2230_set_channel_b(struct zyd_rf *rf, uint8_t chan)
{
int error, i;
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phy1[] = ZYD_AL2230_PHY_PART1;
static const struct {
uint32_t r1, r2, r3;
} rfprog[] = ZYD_AL2230_CHANTABLE_B;
for (i = 0; i < nitems(phy1); i++)
zyd_write16_m(sc, phy1[i].reg, phy1[i].val);
error = zyd_rfwrite_cr(sc, rfprog[chan - 1].r1);
if (error != 0)
goto fail;
error = zyd_rfwrite_cr(sc, rfprog[chan - 1].r2);
if (error != 0)
goto fail;
error = zyd_rfwrite_cr(sc, rfprog[chan - 1].r3);
if (error != 0)
goto fail;
error = zyd_al2230_fini(rf);
fail:
return (error);
}
#define ZYD_AL2230_PHY_BANDEDGE6 \
{ \
{ ZYD_CR128, 0x14 }, { ZYD_CR129, 0x12 }, { ZYD_CR130, 0x10 }, \
{ ZYD_CR47, 0x1e } \
}
static int
zyd_al2230_bandedge6(struct zyd_rf *rf, struct ieee80211_channel *c)
{
int error = 0, i;
struct zyd_softc *sc = rf->rf_sc;
struct ieee80211com *ic = &sc->sc_ic;
struct zyd_phy_pair r[] = ZYD_AL2230_PHY_BANDEDGE6;
int chan = ieee80211_chan2ieee(ic, c);
if (chan == 1 || chan == 11)
r[0].val = 0x12;
for (i = 0; i < nitems(r); i++)
zyd_write16_m(sc, r[i].reg, r[i].val);
fail:
return (error);
}
/*
* AL7230B RF methods.
*/
static int
zyd_al7230B_init(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini_1[] = ZYD_AL7230B_PHY_1;
static const struct zyd_phy_pair phyini_2[] = ZYD_AL7230B_PHY_2;
static const struct zyd_phy_pair phyini_3[] = ZYD_AL7230B_PHY_3;
static const uint32_t rfini_1[] = ZYD_AL7230B_RF_1;
static const uint32_t rfini_2[] = ZYD_AL7230B_RF_2;
int i, error;
/* for AL7230B, PHY and RF need to be initialized in "phases" */
/* init RF-dependent PHY registers, part one */
for (i = 0; i < nitems(phyini_1); i++)
zyd_write16_m(sc, phyini_1[i].reg, phyini_1[i].val);
/* init AL7230B radio, part one */
for (i = 0; i < nitems(rfini_1); i++) {
if ((error = zyd_rfwrite(sc, rfini_1[i])) != 0)
return (error);
}
/* init RF-dependent PHY registers, part two */
for (i = 0; i < nitems(phyini_2); i++)
zyd_write16_m(sc, phyini_2[i].reg, phyini_2[i].val);
/* init AL7230B radio, part two */
for (i = 0; i < nitems(rfini_2); i++) {
if ((error = zyd_rfwrite(sc, rfini_2[i])) != 0)
return (error);
}
/* init RF-dependent PHY registers, part three */
for (i = 0; i < nitems(phyini_3); i++)
zyd_write16_m(sc, phyini_3[i].reg, phyini_3[i].val);
fail:
return (error);
}
static int
zyd_al7230B_switch_radio(struct zyd_rf *rf, int on)
{
int error;
struct zyd_softc *sc = rf->rf_sc;
zyd_write16_m(sc, ZYD_CR11, on ? 0x00 : 0x04);
zyd_write16_m(sc, ZYD_CR251, on ? 0x3f : 0x2f);
fail:
return (error);
}
static int
zyd_al7230B_set_channel(struct zyd_rf *rf, uint8_t chan)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct {
uint32_t r1, r2;
} rfprog[] = ZYD_AL7230B_CHANTABLE;
static const uint32_t rfsc[] = ZYD_AL7230B_RF_SETCHANNEL;
int i, error;
zyd_write16_m(sc, ZYD_CR240, 0x57);
zyd_write16_m(sc, ZYD_CR251, 0x2f);
for (i = 0; i < nitems(rfsc); i++) {
if ((error = zyd_rfwrite(sc, rfsc[i])) != 0)
return (error);
}
zyd_write16_m(sc, ZYD_CR128, 0x14);
zyd_write16_m(sc, ZYD_CR129, 0x12);
zyd_write16_m(sc, ZYD_CR130, 0x10);
zyd_write16_m(sc, ZYD_CR38, 0x38);
zyd_write16_m(sc, ZYD_CR136, 0xdf);
error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
if (error != 0)
goto fail;
error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
if (error != 0)
goto fail;
error = zyd_rfwrite(sc, 0x3c9000);
if (error != 0)
goto fail;
zyd_write16_m(sc, ZYD_CR251, 0x3f);
zyd_write16_m(sc, ZYD_CR203, 0x06);
zyd_write16_m(sc, ZYD_CR240, 0x08);
fail:
return (error);
}
/*
* AL2210 RF methods.
*/
static int
zyd_al2210_init(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini[] = ZYD_AL2210_PHY;
static const uint32_t rfini[] = ZYD_AL2210_RF;
uint32_t tmp;
int i, error;
zyd_write32_m(sc, ZYD_CR18, 2);
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++)
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
/* init AL2210 radio */
for (i = 0; i < nitems(rfini); i++) {
if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
return (error);
}
zyd_write16_m(sc, ZYD_CR47, 0x1e);
zyd_read32_m(sc, ZYD_CR_RADIO_PD, &tmp);
zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp & ~1);
zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp | 1);
zyd_write32_m(sc, ZYD_CR_RFCFG, 0x05);
zyd_write32_m(sc, ZYD_CR_RFCFG, 0x00);
zyd_write16_m(sc, ZYD_CR47, 0x1e);
zyd_write32_m(sc, ZYD_CR18, 3);
fail:
return (error);
}
static int
zyd_al2210_switch_radio(struct zyd_rf *rf, int on)
{
/* vendor driver does nothing for this RF chip */
return (0);
}
static int
zyd_al2210_set_channel(struct zyd_rf *rf, uint8_t chan)
{
int error;
struct zyd_softc *sc = rf->rf_sc;
static const uint32_t rfprog[] = ZYD_AL2210_CHANTABLE;
uint32_t tmp;
zyd_write32_m(sc, ZYD_CR18, 2);
zyd_write16_m(sc, ZYD_CR47, 0x1e);
zyd_read32_m(sc, ZYD_CR_RADIO_PD, &tmp);
zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp & ~1);
zyd_write32_m(sc, ZYD_CR_RADIO_PD, tmp | 1);
zyd_write32_m(sc, ZYD_CR_RFCFG, 0x05);
zyd_write32_m(sc, ZYD_CR_RFCFG, 0x00);
zyd_write16_m(sc, ZYD_CR47, 0x1e);
/* actually set the channel */
error = zyd_rfwrite(sc, rfprog[chan - 1]);
if (error != 0)
goto fail;
zyd_write32_m(sc, ZYD_CR18, 3);
fail:
return (error);
}
/*
* GCT RF methods.
*/
static int
zyd_gct_init(struct zyd_rf *rf)
{
#define ZYD_GCT_INTR_REG 0x85c1
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini[] = ZYD_GCT_PHY;
static const uint32_t rfini[] = ZYD_GCT_RF;
static const uint16_t vco[11][7] = ZYD_GCT_VCO;
int i, idx = -1, error;
uint16_t data;
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++)
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
/* init cgt radio */
for (i = 0; i < nitems(rfini); i++) {
if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
return (error);
}
error = zyd_gct_mode(rf);
if (error != 0)
return (error);
for (i = 0; i < (int)(nitems(vco) - 1); i++) {
error = zyd_gct_set_channel_synth(rf, 1, 0);
if (error != 0)
goto fail;
error = zyd_gct_write(rf, vco[i][0]);
if (error != 0)
goto fail;
zyd_write16_m(sc, ZYD_GCT_INTR_REG, 0xf);
zyd_read16_m(sc, ZYD_GCT_INTR_REG, &data);
if ((data & 0xf) == 0) {
idx = i;
break;
}
}
if (idx == -1) {
error = zyd_gct_set_channel_synth(rf, 1, 1);
if (error != 0)
goto fail;
error = zyd_gct_write(rf, 0x6662);
if (error != 0)
goto fail;
}
rf->idx = idx;
zyd_write16_m(sc, ZYD_CR203, 0x6);
fail:
return (error);
#undef ZYD_GCT_INTR_REG
}
static int
zyd_gct_mode(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const uint32_t mode[] = {
0x25f98, 0x25f9a, 0x25f94, 0x27fd4
};
int i, error;
for (i = 0; i < nitems(mode); i++) {
if ((error = zyd_rfwrite(sc, mode[i])) != 0)
break;
}
return (error);
}
static int
zyd_gct_set_channel_synth(struct zyd_rf *rf, int chan, int acal)
{
int error, idx = chan - 1;
struct zyd_softc *sc = rf->rf_sc;
static uint32_t acal_synth[] = ZYD_GCT_CHANNEL_ACAL;
static uint32_t std_synth[] = ZYD_GCT_CHANNEL_STD;
static uint32_t div_synth[] = ZYD_GCT_CHANNEL_DIV;
error = zyd_rfwrite(sc,
(acal == 1) ? acal_synth[idx] : std_synth[idx]);
if (error != 0)
return (error);
return zyd_rfwrite(sc, div_synth[idx]);
}
static int
zyd_gct_write(struct zyd_rf *rf, uint16_t value)
{
struct zyd_softc *sc = rf->rf_sc;
return zyd_rfwrite(sc, 0x300000 | 0x40000 | value);
}
static int
zyd_gct_switch_radio(struct zyd_rf *rf, int on)
{
int error;
struct zyd_softc *sc = rf->rf_sc;
error = zyd_rfwrite(sc, on ? 0x25f94 : 0x25f90);
if (error != 0)
return (error);
zyd_write16_m(sc, ZYD_CR11, on ? 0x00 : 0x04);
zyd_write16_m(sc, ZYD_CR251,
on ? ((sc->sc_macrev == ZYD_ZD1211B) ? 0x7f : 0x3f) : 0x2f);
fail:
return (error);
}
static int
zyd_gct_set_channel(struct zyd_rf *rf, uint8_t chan)
{
int error, i;
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair cmd[] = {
{ ZYD_CR80, 0x30 }, { ZYD_CR81, 0x30 }, { ZYD_CR79, 0x58 },
{ ZYD_CR12, 0xf0 }, { ZYD_CR77, 0x1b }, { ZYD_CR78, 0x58 },
};
static const uint16_t vco[11][7] = ZYD_GCT_VCO;
error = zyd_gct_set_channel_synth(rf, chan, 0);
if (error != 0)
goto fail;
error = zyd_gct_write(rf, (rf->idx == -1) ? 0x6662 :
vco[rf->idx][((chan - 1) / 2)]);
if (error != 0)
goto fail;
error = zyd_gct_mode(rf);
if (error != 0)
return (error);
for (i = 0; i < nitems(cmd); i++)
zyd_write16_m(sc, cmd[i].reg, cmd[i].val);
error = zyd_gct_txgain(rf, chan);
if (error != 0)
return (error);
zyd_write16_m(sc, ZYD_CR203, 0x6);
fail:
return (error);
}
static int
zyd_gct_txgain(struct zyd_rf *rf, uint8_t chan)
{
struct zyd_softc *sc = rf->rf_sc;
static uint32_t txgain[] = ZYD_GCT_TXGAIN;
uint8_t idx = sc->sc_pwrint[chan - 1];
if (idx >= nitems(txgain)) {
device_printf(sc->sc_dev, "could not set TX gain (%d %#x)\n",
chan, idx);
return 0;
}
return zyd_rfwrite(sc, 0x700000 | txgain[idx]);
}
/*
* Maxim2 RF methods.
*/
static int
zyd_maxim2_init(struct zyd_rf *rf)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini[] = ZYD_MAXIM2_PHY;
static const uint32_t rfini[] = ZYD_MAXIM2_RF;
uint16_t tmp;
int i, error;
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++)
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
zyd_read16_m(sc, ZYD_CR203, &tmp);
zyd_write16_m(sc, ZYD_CR203, tmp & ~(1 << 4));
/* init maxim2 radio */
for (i = 0; i < nitems(rfini); i++) {
if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
return (error);
}
zyd_read16_m(sc, ZYD_CR203, &tmp);
zyd_write16_m(sc, ZYD_CR203, tmp | (1 << 4));
fail:
return (error);
}
static int
zyd_maxim2_switch_radio(struct zyd_rf *rf, int on)
{
/* vendor driver does nothing for this RF chip */
return (0);
}
static int
zyd_maxim2_set_channel(struct zyd_rf *rf, uint8_t chan)
{
struct zyd_softc *sc = rf->rf_sc;
static const struct zyd_phy_pair phyini[] = ZYD_MAXIM2_PHY;
static const uint32_t rfini[] = ZYD_MAXIM2_RF;
static const struct {
uint32_t r1, r2;
} rfprog[] = ZYD_MAXIM2_CHANTABLE;
uint16_t tmp;
int i, error;
/*
* Do the same as we do when initializing it, except for the channel
* values coming from the two channel tables.
*/
/* init RF-dependent PHY registers */
for (i = 0; i < nitems(phyini); i++)
zyd_write16_m(sc, phyini[i].reg, phyini[i].val);
zyd_read16_m(sc, ZYD_CR203, &tmp);
zyd_write16_m(sc, ZYD_CR203, tmp & ~(1 << 4));
/* first two values taken from the chantables */
error = zyd_rfwrite(sc, rfprog[chan - 1].r1);
if (error != 0)
goto fail;
error = zyd_rfwrite(sc, rfprog[chan - 1].r2);
if (error != 0)
goto fail;
/* init maxim2 radio - skipping the two first values */
for (i = 2; i < nitems(rfini); i++) {
if ((error = zyd_rfwrite(sc, rfini[i])) != 0)
return (error);
}
zyd_read16_m(sc, ZYD_CR203, &tmp);
zyd_write16_m(sc, ZYD_CR203, tmp | (1 << 4));
fail:
return (error);
}
static int
zyd_rf_attach(struct zyd_softc *sc, uint8_t type)
{
struct zyd_rf *rf = &sc->sc_rf;
rf->rf_sc = sc;
rf->update_pwr = 1;
switch (type) {
case ZYD_RF_RFMD:
rf->init = zyd_rfmd_init;
rf->switch_radio = zyd_rfmd_switch_radio;
rf->set_channel = zyd_rfmd_set_channel;
rf->width = 24; /* 24-bit RF values */
break;
case ZYD_RF_AL2230:
case ZYD_RF_AL2230S:
if (sc->sc_macrev == ZYD_ZD1211B) {
rf->init = zyd_al2230_init_b;
rf->set_channel = zyd_al2230_set_channel_b;
} else {
rf->init = zyd_al2230_init;
rf->set_channel = zyd_al2230_set_channel;
}
rf->switch_radio = zyd_al2230_switch_radio;
rf->bandedge6 = zyd_al2230_bandedge6;
rf->width = 24; /* 24-bit RF values */
break;
case ZYD_RF_AL7230B:
rf->init = zyd_al7230B_init;
rf->switch_radio = zyd_al7230B_switch_radio;
rf->set_channel = zyd_al7230B_set_channel;
rf->width = 24; /* 24-bit RF values */
break;
case ZYD_RF_AL2210:
rf->init = zyd_al2210_init;
rf->switch_radio = zyd_al2210_switch_radio;
rf->set_channel = zyd_al2210_set_channel;
rf->width = 24; /* 24-bit RF values */
break;
case ZYD_RF_MAXIM_NEW:
case ZYD_RF_GCT:
rf->init = zyd_gct_init;
rf->switch_radio = zyd_gct_switch_radio;
rf->set_channel = zyd_gct_set_channel;
rf->width = 24; /* 24-bit RF values */
rf->update_pwr = 0;
break;
case ZYD_RF_MAXIM_NEW2:
rf->init = zyd_maxim2_init;
rf->switch_radio = zyd_maxim2_switch_radio;
rf->set_channel = zyd_maxim2_set_channel;
rf->width = 18; /* 18-bit RF values */
break;
default:
device_printf(sc->sc_dev,
"sorry, radio \"%s\" is not supported yet\n",
zyd_rf_name(type));
return (EINVAL);
}
return (0);
}
static const char *
zyd_rf_name(uint8_t type)
{
static const char * const zyd_rfs[] = {
"unknown", "unknown", "UW2451", "UCHIP", "AL2230",
"AL7230B", "THETA", "AL2210", "MAXIM_NEW", "GCT",
"AL2230S", "RALINK", "INTERSIL", "RFMD", "MAXIM_NEW2",
"PHILIPS"
};
return zyd_rfs[(type > 15) ? 0 : type];
}
static int
zyd_hw_init(struct zyd_softc *sc)
{
int error;
const struct zyd_phy_pair *phyp;
struct zyd_rf *rf = &sc->sc_rf;
uint16_t val;
/* specify that the plug and play is finished */
zyd_write32_m(sc, ZYD_MAC_AFTER_PNP, 1);
zyd_read16_m(sc, ZYD_FIRMWARE_BASE_ADDR, &sc->sc_fwbase);
DPRINTF(sc, ZYD_DEBUG_FW, "firmware base address=0x%04x\n",
sc->sc_fwbase);
/* retrieve firmware revision number */
zyd_read16_m(sc, sc->sc_fwbase + ZYD_FW_FIRMWARE_REV, &sc->sc_fwrev);
zyd_write32_m(sc, ZYD_CR_GPI_EN, 0);
zyd_write32_m(sc, ZYD_MAC_CONT_WIN_LIMIT, 0x7f043f);
/* set mandatory rates - XXX assumes 802.11b/g */
zyd_write32_m(sc, ZYD_MAC_MAN_RATE, 0x150f);
/* disable interrupts */
zyd_write32_m(sc, ZYD_CR_INTERRUPT, 0);
if ((error = zyd_read_pod(sc)) != 0) {
device_printf(sc->sc_dev, "could not read EEPROM\n");
goto fail;
}
/* PHY init (resetting) */
error = zyd_lock_phy(sc);
if (error != 0)
goto fail;
phyp = (sc->sc_macrev == ZYD_ZD1211B) ? zyd_def_phyB : zyd_def_phy;
for (; phyp->reg != 0; phyp++)
zyd_write16_m(sc, phyp->reg, phyp->val);
if (sc->sc_macrev == ZYD_ZD1211 && sc->sc_fix_cr157 != 0) {
zyd_read16_m(sc, ZYD_EEPROM_PHY_REG, &val);
zyd_write32_m(sc, ZYD_CR157, val >> 8);
}
error = zyd_unlock_phy(sc);
if (error != 0)
goto fail;
/* HMAC init */
zyd_write32_m(sc, ZYD_MAC_ACK_EXT, 0x00000020);
zyd_write32_m(sc, ZYD_CR_ADDA_MBIAS_WT, 0x30000808);
zyd_write32_m(sc, ZYD_MAC_SNIFFER, 0x00000000);
zyd_write32_m(sc, ZYD_MAC_RXFILTER, 0x00000000);
zyd_write32_m(sc, ZYD_MAC_GHTBL, 0x00000000);
zyd_write32_m(sc, ZYD_MAC_GHTBH, 0x80000000);
zyd_write32_m(sc, ZYD_MAC_MISC, 0x000000a4);
zyd_write32_m(sc, ZYD_CR_ADDA_PWR_DWN, 0x0000007f);
zyd_write32_m(sc, ZYD_MAC_BCNCFG, 0x00f00401);
zyd_write32_m(sc, ZYD_MAC_PHY_DELAY2, 0x00000000);
zyd_write32_m(sc, ZYD_MAC_ACK_EXT, 0x00000080);
zyd_write32_m(sc, ZYD_CR_ADDA_PWR_DWN, 0x00000000);
zyd_write32_m(sc, ZYD_MAC_SIFS_ACK_TIME, 0x00000100);
zyd_write32_m(sc, ZYD_CR_RX_PE_DELAY, 0x00000070);
zyd_write32_m(sc, ZYD_CR_PS_CTRL, 0x10000000);
zyd_write32_m(sc, ZYD_MAC_RTSCTSRATE, 0x02030203);
zyd_write32_m(sc, ZYD_MAC_AFTER_PNP, 1);
zyd_write32_m(sc, ZYD_MAC_BACKOFF_PROTECT, 0x00000114);
zyd_write32_m(sc, ZYD_MAC_DIFS_EIFS_SIFS, 0x0a47c032);
zyd_write32_m(sc, ZYD_MAC_CAM_MODE, 0x3);
if (sc->sc_macrev == ZYD_ZD1211) {
zyd_write32_m(sc, ZYD_MAC_RETRY, 0x00000002);
zyd_write32_m(sc, ZYD_MAC_RX_THRESHOLD, 0x000c0640);
} else {
zyd_write32_m(sc, ZYD_MACB_MAX_RETRY, 0x02020202);
zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL4, 0x007f003f);
zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL3, 0x007f003f);
zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL2, 0x003f001f);
zyd_write32_m(sc, ZYD_MACB_TXPWR_CTL1, 0x001f000f);
zyd_write32_m(sc, ZYD_MACB_AIFS_CTL1, 0x00280028);
zyd_write32_m(sc, ZYD_MACB_AIFS_CTL2, 0x008C003C);
zyd_write32_m(sc, ZYD_MACB_TXOP, 0x01800824);
zyd_write32_m(sc, ZYD_MAC_RX_THRESHOLD, 0x000c0eff);
}
/* init beacon interval to 100ms */
if ((error = zyd_set_beacon_interval(sc, 100)) != 0)
goto fail;
if ((error = zyd_rf_attach(sc, sc->sc_rfrev)) != 0) {
device_printf(sc->sc_dev, "could not attach RF, rev 0x%x\n",
sc->sc_rfrev);
goto fail;
}
/* RF chip init */
error = zyd_lock_phy(sc);
if (error != 0)
goto fail;
error = (*rf->init)(rf);
if (error != 0) {
device_printf(sc->sc_dev,
"radio initialization failed, error %d\n", error);
goto fail;
}
error = zyd_unlock_phy(sc);
if (error != 0)
goto fail;
if ((error = zyd_read_eeprom(sc)) != 0) {
device_printf(sc->sc_dev, "could not read EEPROM\n");
goto fail;
}
fail: return (error);
}
static int
zyd_read_pod(struct zyd_softc *sc)
{
int error;
uint32_t tmp;
zyd_read32_m(sc, ZYD_EEPROM_POD, &tmp);
sc->sc_rfrev = tmp & 0x0f;
sc->sc_ledtype = (tmp >> 4) & 0x01;
sc->sc_al2230s = (tmp >> 7) & 0x01;
sc->sc_cckgain = (tmp >> 8) & 0x01;
sc->sc_fix_cr157 = (tmp >> 13) & 0x01;
sc->sc_parev = (tmp >> 16) & 0x0f;
sc->sc_bandedge6 = (tmp >> 21) & 0x01;
sc->sc_newphy = (tmp >> 31) & 0x01;
sc->sc_txled = ((tmp & (1 << 24)) && (tmp & (1 << 29))) ? 0 : 1;
fail:
return (error);
}
static int
zyd_read_eeprom(struct zyd_softc *sc)
{
uint16_t val;
int error, i;
/* read Tx power calibration tables */
for (i = 0; i < 7; i++) {
zyd_read16_m(sc, ZYD_EEPROM_PWR_CAL + i, &val);
sc->sc_pwrcal[i * 2] = val >> 8;
sc->sc_pwrcal[i * 2 + 1] = val & 0xff;
zyd_read16_m(sc, ZYD_EEPROM_PWR_INT + i, &val);
sc->sc_pwrint[i * 2] = val >> 8;
sc->sc_pwrint[i * 2 + 1] = val & 0xff;
zyd_read16_m(sc, ZYD_EEPROM_36M_CAL + i, &val);
sc->sc_ofdm36_cal[i * 2] = val >> 8;
sc->sc_ofdm36_cal[i * 2 + 1] = val & 0xff;
zyd_read16_m(sc, ZYD_EEPROM_48M_CAL + i, &val);
sc->sc_ofdm48_cal[i * 2] = val >> 8;
sc->sc_ofdm48_cal[i * 2 + 1] = val & 0xff;
zyd_read16_m(sc, ZYD_EEPROM_54M_CAL + i, &val);
sc->sc_ofdm54_cal[i * 2] = val >> 8;
sc->sc_ofdm54_cal[i * 2 + 1] = val & 0xff;
}
fail:
return (error);
}
static int
zyd_get_macaddr(struct zyd_softc *sc)
{
struct usb_device_request req;
usb_error_t error;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = ZYD_READFWDATAREQ;
USETW(req.wValue, ZYD_EEPROM_MAC_ADDR_P1);
USETW(req.wIndex, 0);
USETW(req.wLength, IEEE80211_ADDR_LEN);
error = zyd_do_request(sc, &req, sc->sc_ic.ic_macaddr);
if (error != 0) {
device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
usbd_errstr(error));
}
return (error);
}
static int
zyd_set_macaddr(struct zyd_softc *sc, const uint8_t *addr)
{
int error;
uint32_t tmp;
tmp = addr[3] << 24 | addr[2] << 16 | addr[1] << 8 | addr[0];
zyd_write32_m(sc, ZYD_MAC_MACADRL, tmp);
tmp = addr[5] << 8 | addr[4];
zyd_write32_m(sc, ZYD_MAC_MACADRH, tmp);
fail:
return (error);
}
static int
zyd_set_bssid(struct zyd_softc *sc, const uint8_t *addr)
{
int error;
uint32_t tmp;
tmp = addr[3] << 24 | addr[2] << 16 | addr[1] << 8 | addr[0];
zyd_write32_m(sc, ZYD_MAC_BSSADRL, tmp);
tmp = addr[5] << 8 | addr[4];
zyd_write32_m(sc, ZYD_MAC_BSSADRH, tmp);
fail:
return (error);
}
static int
zyd_switch_radio(struct zyd_softc *sc, int on)
{
struct zyd_rf *rf = &sc->sc_rf;
int error;
error = zyd_lock_phy(sc);
if (error != 0)
goto fail;
error = (*rf->switch_radio)(rf, on);
if (error != 0)
goto fail;
error = zyd_unlock_phy(sc);
fail:
return (error);
}
static int
zyd_set_led(struct zyd_softc *sc, int which, int on)
{
int error;
uint32_t tmp;
zyd_read32_m(sc, ZYD_MAC_TX_PE_CONTROL, &tmp);
tmp &= ~which;
if (on)
tmp |= which;
zyd_write32_m(sc, ZYD_MAC_TX_PE_CONTROL, tmp);
fail:
return (error);
}
static void
zyd_set_multi(struct zyd_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t low, high;
int error;
if ((sc->sc_flags & ZYD_FLAG_RUNNING) == 0)
return;
low = 0x00000000;
high = 0x80000000;
if (ic->ic_opmode == IEEE80211_M_MONITOR || ic->ic_allmulti > 0 ||
ic->ic_promisc > 0) {
low = 0xffffffff;
high = 0xffffffff;
} else {
struct ieee80211vap *vap;
struct ifnet *ifp;
struct ifmultiaddr *ifma;
uint8_t v;
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
ifp = vap->iv_ifp;
if_maddr_rlock(ifp);
CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
v = ((uint8_t *)LLADDR((struct sockaddr_dl *)
ifma->ifma_addr))[5] >> 2;
if (v < 32)
low |= 1 << v;
else
high |= 1 << (v - 32);
}
if_maddr_runlock(ifp);
}
}
/* reprogram multicast global hash table */
zyd_write32_m(sc, ZYD_MAC_GHTBL, low);
zyd_write32_m(sc, ZYD_MAC_GHTBH, high);
fail:
if (error != 0)
device_printf(sc->sc_dev,
"could not set multicast hash table\n");
}
static void
zyd_update_mcast(struct ieee80211com *ic)
{
struct zyd_softc *sc = ic->ic_softc;
ZYD_LOCK(sc);
zyd_set_multi(sc);
ZYD_UNLOCK(sc);
}
static int
zyd_set_rxfilter(struct zyd_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t rxfilter;
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
rxfilter = ZYD_FILTER_BSS;
break;
case IEEE80211_M_IBSS:
case IEEE80211_M_HOSTAP:
rxfilter = ZYD_FILTER_HOSTAP;
break;
case IEEE80211_M_MONITOR:
rxfilter = ZYD_FILTER_MONITOR;
break;
default:
/* should not get there */
return (EINVAL);
}
return zyd_write32(sc, ZYD_MAC_RXFILTER, rxfilter);
}
static void
zyd_set_chan(struct zyd_softc *sc, struct ieee80211_channel *c)
{
int error;
struct ieee80211com *ic = &sc->sc_ic;
struct zyd_rf *rf = &sc->sc_rf;
uint32_t tmp;
int chan;
chan = ieee80211_chan2ieee(ic, c);
if (chan == 0 || chan == IEEE80211_CHAN_ANY) {
/* XXX should NEVER happen */
device_printf(sc->sc_dev,
"%s: invalid channel %x\n", __func__, chan);
return;
}
error = zyd_lock_phy(sc);
if (error != 0)
goto fail;
error = (*rf->set_channel)(rf, chan);
if (error != 0)
goto fail;
if (rf->update_pwr) {
/* update Tx power */
zyd_write16_m(sc, ZYD_CR31, sc->sc_pwrint[chan - 1]);
if (sc->sc_macrev == ZYD_ZD1211B) {
zyd_write16_m(sc, ZYD_CR67,
sc->sc_ofdm36_cal[chan - 1]);
zyd_write16_m(sc, ZYD_CR66,
sc->sc_ofdm48_cal[chan - 1]);
zyd_write16_m(sc, ZYD_CR65,
sc->sc_ofdm54_cal[chan - 1]);
zyd_write16_m(sc, ZYD_CR68, sc->sc_pwrcal[chan - 1]);
zyd_write16_m(sc, ZYD_CR69, 0x28);
zyd_write16_m(sc, ZYD_CR69, 0x2a);
}
}
if (sc->sc_cckgain) {
/* set CCK baseband gain from EEPROM */
if (zyd_read32(sc, ZYD_EEPROM_PHY_REG, &tmp) == 0)
zyd_write16_m(sc, ZYD_CR47, tmp & 0xff);
}
if (sc->sc_bandedge6 && rf->bandedge6 != NULL) {
error = (*rf->bandedge6)(rf, c);
if (error != 0)
goto fail;
}
zyd_write32_m(sc, ZYD_CR_CONFIG_PHILIPS, 0);
error = zyd_unlock_phy(sc);
if (error != 0)
goto fail;
sc->sc_rxtap.wr_chan_freq = sc->sc_txtap.wt_chan_freq =
htole16(c->ic_freq);
sc->sc_rxtap.wr_chan_flags = sc->sc_txtap.wt_chan_flags =
htole16(c->ic_flags);
fail:
return;
}
static int
zyd_set_beacon_interval(struct zyd_softc *sc, int bintval)
{
int error;
uint32_t val;
zyd_read32_m(sc, ZYD_CR_ATIM_WND_PERIOD, &val);
sc->sc_atim_wnd = val;
zyd_read32_m(sc, ZYD_CR_PRE_TBTT, &val);
sc->sc_pre_tbtt = val;
sc->sc_bcn_int = bintval;
if (sc->sc_bcn_int <= 5)
sc->sc_bcn_int = 5;
if (sc->sc_pre_tbtt < 4 || sc->sc_pre_tbtt >= sc->sc_bcn_int)
sc->sc_pre_tbtt = sc->sc_bcn_int - 1;
if (sc->sc_atim_wnd >= sc->sc_pre_tbtt)
sc->sc_atim_wnd = sc->sc_pre_tbtt - 1;
zyd_write32_m(sc, ZYD_CR_ATIM_WND_PERIOD, sc->sc_atim_wnd);
zyd_write32_m(sc, ZYD_CR_PRE_TBTT, sc->sc_pre_tbtt);
zyd_write32_m(sc, ZYD_CR_BCN_INTERVAL, sc->sc_bcn_int);
fail:
return (error);
}
static void
zyd_rx_data(struct usb_xfer *xfer, int offset, uint16_t len)
{
struct zyd_softc *sc = usbd_xfer_softc(xfer);
struct ieee80211com *ic = &sc->sc_ic;
struct zyd_plcphdr plcp;
struct zyd_rx_stat stat;
struct usb_page_cache *pc;
struct mbuf *m;
int rlen, rssi;
if (len < ZYD_MIN_FRAGSZ) {
DPRINTF(sc, ZYD_DEBUG_RECV, "%s: frame too short (length=%d)\n",
device_get_nameunit(sc->sc_dev), len);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, offset, &plcp, sizeof(plcp));
usbd_copy_out(pc, offset + len - sizeof(stat), &stat, sizeof(stat));
if (stat.flags & ZYD_RX_ERROR) {
DPRINTF(sc, ZYD_DEBUG_RECV,
"%s: RX status indicated error (%x)\n",
device_get_nameunit(sc->sc_dev), stat.flags);
counter_u64_add(ic->ic_ierrors, 1);
return;
}
/* compute actual frame length */
rlen = len - sizeof(struct zyd_plcphdr) -
sizeof(struct zyd_rx_stat) - IEEE80211_CRC_LEN;
/* allocate a mbuf to store the frame */
if (rlen > (int)MCLBYTES) {
DPRINTF(sc, ZYD_DEBUG_RECV, "%s: frame too long (length=%d)\n",
device_get_nameunit(sc->sc_dev), rlen);
counter_u64_add(ic->ic_ierrors, 1);
return;
} else if (rlen > (int)MHLEN)
m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
else
m = m_gethdr(M_NOWAIT, MT_DATA);
if (m == NULL) {
DPRINTF(sc, ZYD_DEBUG_RECV, "%s: could not allocate rx mbuf\n",
device_get_nameunit(sc->sc_dev));
counter_u64_add(ic->ic_ierrors, 1);
return;
}
m->m_pkthdr.len = m->m_len = rlen;
usbd_copy_out(pc, offset + sizeof(plcp), mtod(m, uint8_t *), rlen);
if (ieee80211_radiotap_active(ic)) {
struct zyd_rx_radiotap_header *tap = &sc->sc_rxtap;
tap->wr_flags = 0;
if (stat.flags & (ZYD_RX_BADCRC16 | ZYD_RX_BADCRC32))
tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
/* XXX toss, no way to express errors */
if (stat.flags & ZYD_RX_DECRYPTERR)
tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
tap->wr_rate = ieee80211_plcp2rate(plcp.signal,
(stat.flags & ZYD_RX_OFDM) ?
IEEE80211_T_OFDM : IEEE80211_T_CCK);
tap->wr_antsignal = stat.rssi + -95;
tap->wr_antnoise = -95; /* XXX */
}
rssi = (stat.rssi > 63) ? 127 : 2 * stat.rssi;
sc->sc_rx_data[sc->sc_rx_count].rssi = rssi;
sc->sc_rx_data[sc->sc_rx_count].m = m;
sc->sc_rx_count++;
}
static void
zyd_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct zyd_softc *sc = usbd_xfer_softc(xfer);
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_node *ni;
struct zyd_rx_desc desc;
struct mbuf *m;
struct usb_page_cache *pc;
uint32_t offset;
uint8_t rssi;
int8_t nf;
int i;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
sc->sc_rx_count = 0;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, actlen - sizeof(desc), &desc, sizeof(desc));
offset = 0;
if (UGETW(desc.tag) == ZYD_TAG_MULTIFRAME) {
DPRINTF(sc, ZYD_DEBUG_RECV,
"%s: received multi-frame transfer\n", __func__);
for (i = 0; i < ZYD_MAX_RXFRAMECNT; i++) {
uint16_t len16 = UGETW(desc.len[i]);
if (len16 == 0 || len16 > actlen)
break;
zyd_rx_data(xfer, offset, len16);
/* next frame is aligned on a 32-bit boundary */
len16 = (len16 + 3) & ~3;
offset += len16;
if (len16 > actlen)
break;
actlen -= len16;
}
} else {
DPRINTF(sc, ZYD_DEBUG_RECV,
"%s: received single-frame transfer\n", __func__);
zyd_rx_data(xfer, 0, actlen);
}
/* 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!
*/
ZYD_UNLOCK(sc);
for (i = 0; i < sc->sc_rx_count; i++) {
rssi = sc->sc_rx_data[i].rssi;
m = sc->sc_rx_data[i].m;
sc->sc_rx_data[i].m = NULL;
nf = -95; /* XXX */
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);
}
ZYD_LOCK(sc);
zyd_start(sc);
break;
default: /* Error */
DPRINTF(sc, ZYD_DEBUG_ANY, "frame error: %s\n", usbd_errstr(error));
if (error != USB_ERR_CANCELLED) {
/* try to clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static uint8_t
zyd_plcp_signal(struct zyd_softc *sc, 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);
}
device_printf(sc->sc_dev, "unsupported rate %d\n", rate);
return (0x0);
}
static void
zyd_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct zyd_softc *sc = usbd_xfer_softc(xfer);
struct ieee80211vap *vap;
struct zyd_tx_data *data;
struct mbuf *m;
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTF(sc, ZYD_DEBUG_ANY, "transfer complete, %u bytes\n",
actlen);
/* free resources */
data = usbd_xfer_get_priv(xfer);
zyd_tx_free(data, 0);
usbd_xfer_set_priv(xfer, NULL);
/* 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 > (int)ZYD_MAX_TXBUFSZ) {
DPRINTF(sc, ZYD_DEBUG_ANY, "data overflow, %u bytes\n",
m->m_pkthdr.len);
m->m_pkthdr.len = ZYD_MAX_TXBUFSZ;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &data->desc, ZYD_TX_DESC_SIZE);
usbd_m_copy_in(pc, ZYD_TX_DESC_SIZE, m, 0,
m->m_pkthdr.len);
vap = data->ni->ni_vap;
if (ieee80211_radiotap_active_vap(vap)) {
struct zyd_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_rate = data->rate;
ieee80211_radiotap_tx(vap, m);
}
usbd_xfer_set_frame_len(xfer, 0, ZYD_TX_DESC_SIZE + m->m_pkthdr.len);
usbd_xfer_set_priv(xfer, data);
usbd_transfer_submit(xfer);
}
zyd_start(sc);
break;
default: /* Error */
DPRINTF(sc, ZYD_DEBUG_ANY, "transfer error, %s\n",
usbd_errstr(error));
counter_u64_add(sc->sc_ic.ic_oerrors, 1);
data = usbd_xfer_get_priv(xfer);
usbd_xfer_set_priv(xfer, NULL);
if (data != NULL)
zyd_tx_free(data, error);
if (error != USB_ERR_CANCELLED) {
if (error == USB_ERR_TIMEOUT)
device_printf(sc->sc_dev, "device timeout\n");
/*
* Try to clear stall first, also if other
* errors occur, hence clearing stall
* introduces a 50 ms delay:
*/
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static int
zyd_tx_start(struct zyd_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = ni->ni_ic;
struct zyd_tx_desc *desc;
struct zyd_tx_data *data;
struct ieee80211_frame *wh;
const struct ieee80211_txparam *tp = ni->ni_txparms;
struct ieee80211_key *k;
int rate, totlen, type, ismcast;
static const uint8_t ratediv[] = ZYD_TX_RATEDIV;
uint8_t phy;
uint16_t pktlen;
uint32_t bits;
wh = mtod(m0, struct ieee80211_frame *);
data = STAILQ_FIRST(&sc->tx_free);
STAILQ_REMOVE_HEAD(&sc->tx_free, next);
sc->tx_nfree--;
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
if (type == IEEE80211_FC0_TYPE_MGT ||
type == IEEE80211_FC0_TYPE_CTL ||
(m0->m_flags & M_EAPOL) != 0) {
rate = tp->mgmtrate;
} else {
/* for data frames */
if (ismcast)
rate = tp->mcastrate;
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_PROTECTED) {
k = ieee80211_crypto_encap(ni, m0);
if (k == NULL) {
return (ENOBUFS);
}
/* packet header may have moved, reset our local pointer */
wh = mtod(m0, struct ieee80211_frame *);
}
data->ni = ni;
data->m = m0;
data->rate = rate;
/* fill Tx descriptor */
desc = &data->desc;
phy = zyd_plcp_signal(sc, rate);
desc->phy = phy;
if (ZYD_RATE_IS_OFDM(rate)) {
desc->phy |= ZYD_TX_PHY_OFDM;
if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
desc->phy |= ZYD_TX_PHY_5GHZ;
} else if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
desc->phy |= ZYD_TX_PHY_SHPREAMBLE;
totlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
desc->len = htole16(totlen);
desc->flags = ZYD_TX_FLAG_BACKOFF;
if (!ismcast) {
/* multicast frames are not sent at OFDM rates in 802.11b/g */
if (totlen > vap->iv_rtsthreshold) {
desc->flags |= ZYD_TX_FLAG_RTS;
} else if (ZYD_RATE_IS_OFDM(rate) &&
(ic->ic_flags & IEEE80211_F_USEPROT)) {
if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
desc->flags |= ZYD_TX_FLAG_CTS_TO_SELF;
else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
desc->flags |= ZYD_TX_FLAG_RTS;
}
} else
desc->flags |= ZYD_TX_FLAG_MULTICAST;
if ((wh->i_fc[0] &
(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
(IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_PS_POLL))
desc->flags |= ZYD_TX_FLAG_TYPE(ZYD_TX_TYPE_PS_POLL);
/* actual transmit length (XXX why +10?) */
pktlen = ZYD_TX_DESC_SIZE + 10;
if (sc->sc_macrev == ZYD_ZD1211)
pktlen += totlen;
desc->pktlen = htole16(pktlen);
bits = (rate == 11) ? (totlen * 16) + 10 :
((rate == 22) ? (totlen * 8) + 10 : (totlen * 8));
desc->plcp_length = htole16(bits / ratediv[phy]);
desc->plcp_service = 0;
if (rate == 22 && (bits % 11) > 0 && (bits % 11) <= 3)
desc->plcp_service |= ZYD_PLCP_LENGEXT;
desc->nextlen = 0;
if (ieee80211_radiotap_active_vap(vap)) {
struct zyd_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0;
tap->wt_rate = rate;
ieee80211_radiotap_tx(vap, m0);
}
DPRINTF(sc, ZYD_DEBUG_XMIT,
"%s: sending data frame len=%zu rate=%u\n",
device_get_nameunit(sc->sc_dev), (size_t)m0->m_pkthdr.len,
rate);
STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
usbd_transfer_start(sc->sc_xfer[ZYD_BULK_WR]);
return (0);
}
static int
zyd_transmit(struct ieee80211com *ic, struct mbuf *m)
{
struct zyd_softc *sc = ic->ic_softc;
int error;
ZYD_LOCK(sc);
if ((sc->sc_flags & ZYD_FLAG_RUNNING) == 0) {
ZYD_UNLOCK(sc);
return (ENXIO);
}
error = mbufq_enqueue(&sc->sc_snd, m);
if (error) {
ZYD_UNLOCK(sc);
return (error);
}
zyd_start(sc);
ZYD_UNLOCK(sc);
return (0);
}
static void
zyd_start(struct zyd_softc *sc)
{
struct ieee80211_node *ni;
struct mbuf *m;
ZYD_LOCK_ASSERT(sc, MA_OWNED);
while (sc->tx_nfree > 0 && (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
if (zyd_tx_start(sc, m, ni) != 0) {
m_freem(m);
if_inc_counter(ni->ni_vap->iv_ifp,
IFCOUNTER_OERRORS, 1);
ieee80211_free_node(ni);
break;
}
}
}
static int
zyd_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
const struct ieee80211_bpf_params *params)
{
struct ieee80211com *ic = ni->ni_ic;
struct zyd_softc *sc = ic->ic_softc;
ZYD_LOCK(sc);
/* prevent management frames from being sent if we're not ready */
if (!(sc->sc_flags & ZYD_FLAG_RUNNING)) {
ZYD_UNLOCK(sc);
m_freem(m);
return (ENETDOWN);
}
if (sc->tx_nfree == 0) {
ZYD_UNLOCK(sc);
m_freem(m);
return (ENOBUFS); /* XXX */
}
/*
* Legacy path; interpret frame contents to decide
* precisely how to send the frame.
* XXX raw path
*/
if (zyd_tx_start(sc, m, ni) != 0) {
ZYD_UNLOCK(sc);
m_freem(m);
return (EIO);
}
ZYD_UNLOCK(sc);
return (0);
}
static void
zyd_parent(struct ieee80211com *ic)
{
struct zyd_softc *sc = ic->ic_softc;
int startall = 0;
ZYD_LOCK(sc);
if (sc->sc_flags & ZYD_FLAG_DETACHED) {
ZYD_UNLOCK(sc);
return;
}
if (ic->ic_nrunning > 0) {
if ((sc->sc_flags & ZYD_FLAG_RUNNING) == 0) {
zyd_init_locked(sc);
startall = 1;
} else
zyd_set_multi(sc);
} else if (sc->sc_flags & ZYD_FLAG_RUNNING)
zyd_stop(sc);
ZYD_UNLOCK(sc);
if (startall)
ieee80211_start_all(ic);
}
static void
zyd_init_locked(struct zyd_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
struct usb_config_descriptor *cd;
int error;
uint32_t val;
ZYD_LOCK_ASSERT(sc, MA_OWNED);
if (!(sc->sc_flags & ZYD_FLAG_INITONCE)) {
error = zyd_loadfirmware(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"could not load firmware (error=%d)\n", error);
goto fail;
}
/* reset device */
cd = usbd_get_config_descriptor(sc->sc_udev);
error = usbd_req_set_config(sc->sc_udev, &sc->sc_mtx,
cd->bConfigurationValue);
if (error)
device_printf(sc->sc_dev, "reset failed, continuing\n");
error = zyd_hw_init(sc);
if (error) {
device_printf(sc->sc_dev,
"hardware initialization failed\n");
goto fail;
}
device_printf(sc->sc_dev,
"HMAC ZD1211%s, FW %02x.%02x, RF %s S%x, PA%x LED %x "
"BE%x NP%x Gain%x F%x\n",
(sc->sc_macrev == ZYD_ZD1211) ? "": "B",
sc->sc_fwrev >> 8, sc->sc_fwrev & 0xff,
zyd_rf_name(sc->sc_rfrev), sc->sc_al2230s, sc->sc_parev,
sc->sc_ledtype, sc->sc_bandedge6, sc->sc_newphy,
sc->sc_cckgain, sc->sc_fix_cr157);
/* read regulatory domain (currently unused) */
zyd_read32_m(sc, ZYD_EEPROM_SUBID, &val);
sc->sc_regdomain = val >> 16;
DPRINTF(sc, ZYD_DEBUG_INIT, "regulatory domain %x\n",
sc->sc_regdomain);
/* we'll do software WEP decryption for now */
DPRINTF(sc, ZYD_DEBUG_INIT, "%s: setting encryption type\n",
__func__);
zyd_write32_m(sc, ZYD_MAC_ENCRYPTION_TYPE, ZYD_ENC_SNIFFER);
sc->sc_flags |= ZYD_FLAG_INITONCE;
}
if (sc->sc_flags & ZYD_FLAG_RUNNING)
zyd_stop(sc);
DPRINTF(sc, ZYD_DEBUG_INIT, "setting MAC address to %6D\n",
vap ? vap->iv_myaddr : ic->ic_macaddr, ":");
error = zyd_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
if (error != 0)
return;
/* set basic rates */
if (ic->ic_curmode == IEEE80211_MODE_11B)
zyd_write32_m(sc, ZYD_MAC_BAS_RATE, 0x0003);
else if (ic->ic_curmode == IEEE80211_MODE_11A)
zyd_write32_m(sc, ZYD_MAC_BAS_RATE, 0x1500);
else /* assumes 802.11b/g */
zyd_write32_m(sc, ZYD_MAC_BAS_RATE, 0xff0f);
/* promiscuous mode */
zyd_write32_m(sc, ZYD_MAC_SNIFFER, 0);
/* multicast setup */
zyd_set_multi(sc);
/* set RX filter */
error = zyd_set_rxfilter(sc);
if (error != 0)
goto fail;
/* switch radio transmitter ON */
error = zyd_switch_radio(sc, 1);
if (error != 0)
goto fail;
/* set default BSS channel */
zyd_set_chan(sc, ic->ic_curchan);
/*
* Allocate Tx and Rx xfer queues.
*/
zyd_setup_tx_list(sc);
/* enable interrupts */
zyd_write32_m(sc, ZYD_CR_INTERRUPT, ZYD_HWINT_MASK);
sc->sc_flags |= ZYD_FLAG_RUNNING;
usbd_xfer_set_stall(sc->sc_xfer[ZYD_BULK_WR]);
usbd_transfer_start(sc->sc_xfer[ZYD_BULK_RD]);
usbd_transfer_start(sc->sc_xfer[ZYD_INTR_RD]);
return;
fail: zyd_stop(sc);
return;
}
static void
zyd_stop(struct zyd_softc *sc)
{
int error;
ZYD_LOCK_ASSERT(sc, MA_OWNED);
sc->sc_flags &= ~ZYD_FLAG_RUNNING;
zyd_drain_mbufq(sc);
/*
* Drain all the transfers, if not already drained:
*/
ZYD_UNLOCK(sc);
usbd_transfer_drain(sc->sc_xfer[ZYD_BULK_WR]);
usbd_transfer_drain(sc->sc_xfer[ZYD_BULK_RD]);
ZYD_LOCK(sc);
zyd_unsetup_tx_list(sc);
/* Stop now if the device was never set up */
if (!(sc->sc_flags & ZYD_FLAG_INITONCE))
return;
/* switch radio transmitter OFF */
error = zyd_switch_radio(sc, 0);
if (error != 0)
goto fail;
/* disable Rx */
zyd_write32_m(sc, ZYD_MAC_RXFILTER, 0);
/* disable interrupts */
zyd_write32_m(sc, ZYD_CR_INTERRUPT, 0);
fail:
return;
}
static int
zyd_loadfirmware(struct zyd_softc *sc)
{
struct usb_device_request req;
size_t size;
u_char *fw;
uint8_t stat;
uint16_t addr;
if (sc->sc_flags & ZYD_FLAG_FWLOADED)
return (0);
if (sc->sc_macrev == ZYD_ZD1211) {
fw = (u_char *)zd1211_firmware;
size = sizeof(zd1211_firmware);
} else {
fw = (u_char *)zd1211b_firmware;
size = sizeof(zd1211b_firmware);
}
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = ZYD_DOWNLOADREQ;
USETW(req.wIndex, 0);
addr = ZYD_FIRMWARE_START_ADDR;
while (size > 0) {
/*
* When the transfer size is 4096 bytes, it is not
* likely to be able to transfer it.
* The cause is port or machine or chip?
*/
const int mlen = min(size, 64);
DPRINTF(sc, ZYD_DEBUG_FW,
"loading firmware block: len=%d, addr=0x%x\n", mlen, addr);
USETW(req.wValue, addr);
USETW(req.wLength, mlen);
if (zyd_do_request(sc, &req, fw) != 0)
return (EIO);
addr += mlen / 2;
fw += mlen;
size -= mlen;
}
/* check whether the upload succeeded */
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = ZYD_DOWNLOADSTS;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, sizeof(stat));
if (zyd_do_request(sc, &req, &stat) != 0)
return (EIO);
sc->sc_flags |= ZYD_FLAG_FWLOADED;
return (stat & 0x80) ? (EIO) : (0);
}
static void
zyd_scan_start(struct ieee80211com *ic)
{
struct zyd_softc *sc = ic->ic_softc;
ZYD_LOCK(sc);
/* want broadcast address while scanning */
zyd_set_bssid(sc, ieee80211broadcastaddr);
ZYD_UNLOCK(sc);
}
static void
zyd_scan_end(struct ieee80211com *ic)
{
struct zyd_softc *sc = ic->ic_softc;
ZYD_LOCK(sc);
/* restore previous bssid */
zyd_set_bssid(sc, sc->sc_bssid);
ZYD_UNLOCK(sc);
}
static void
zyd_getradiocaps(struct ieee80211com *ic,
int maxchans, int *nchans, struct ieee80211_channel chans[])
{
uint8_t bands[IEEE80211_MODE_BYTES];
memset(bands, 0, sizeof(bands));
setbit(bands, IEEE80211_MODE_11B);
setbit(bands, IEEE80211_MODE_11G);
ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
zyd_chan_2ghz, nitems(zyd_chan_2ghz), bands, 0);
}
static void
zyd_set_channel(struct ieee80211com *ic)
{
struct zyd_softc *sc = ic->ic_softc;
ZYD_LOCK(sc);
zyd_set_chan(sc, ic->ic_curchan);
ZYD_UNLOCK(sc);
}
static device_method_t zyd_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, zyd_match),
DEVMETHOD(device_attach, zyd_attach),
DEVMETHOD(device_detach, zyd_detach),
DEVMETHOD_END
};
static driver_t zyd_driver = {
.name = "zyd",
.methods = zyd_methods,
.size = sizeof(struct zyd_softc)
};
static devclass_t zyd_devclass;
DRIVER_MODULE(zyd, uhub, zyd_driver, zyd_devclass, NULL, 0);
MODULE_DEPEND(zyd, usb, 1, 1, 1);
MODULE_DEPEND(zyd, wlan, 1, 1, 1);
MODULE_VERSION(zyd, 1);
USB_PNP_HOST_INFO(zyd_devs);
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