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path: root/sys/dev/usb2/wlan/if_rum2.c
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Diffstat (limited to 'sys/dev/usb2/wlan/if_rum2.c')
-rw-r--r--sys/dev/usb2/wlan/if_rum2.c245
1 files changed, 124 insertions, 121 deletions
diff --git a/sys/dev/usb2/wlan/if_rum2.c b/sys/dev/usb2/wlan/if_rum2.c
index 4e78c37..4e7db6d 100644
--- a/sys/dev/usb2/wlan/if_rum2.c
+++ b/sys/dev/usb2/wlan/if_rum2.c
@@ -54,9 +54,6 @@ SYSCTL_INT(_hw_usb2_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0,
"Debug level");
#endif
-#define rum_do_request(sc,req,data) \
- usb2_do_request_proc((sc)->sc_udev, &(sc)->sc_tq, req, data, 0, NULL, 5000)
-
static const struct usb2_device_id rum_devs[] = {
{ USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM) },
{ USB_VP(USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2) },
@@ -119,13 +116,10 @@ static device_detach_t rum_detach;
static usb2_callback_t rum_bulk_read_callback;
static usb2_callback_t rum_bulk_write_callback;
-static usb2_proc_callback_t rum_attach_post;
static usb2_proc_callback_t rum_task;
static usb2_proc_callback_t rum_scantask;
static usb2_proc_callback_t rum_promisctask;
static usb2_proc_callback_t rum_amrr_task;
-static usb2_proc_callback_t rum_init_task;
-static usb2_proc_callback_t rum_stop_task;
static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
const char name[IFNAMSIZ], int unit, int opmode,
@@ -133,8 +127,8 @@ static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
const uint8_t mac[IEEE80211_ADDR_LEN]);
static void rum_vap_delete(struct ieee80211vap *);
static void rum_tx_free(struct rum_tx_data *, int);
-static void rum_setup_tx_list(struct rum_softc *);
-static void rum_unsetup_tx_list(struct rum_softc *);
+static int rum_alloc_tx_list(struct rum_softc *);
+static void rum_free_tx_list(struct rum_softc *);
static int rum_newstate(struct ieee80211vap *,
enum ieee80211_state, int);
static void rum_setup_tx_desc(struct rum_softc *,
@@ -175,7 +169,9 @@ static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
static const char *rum_get_rf(int);
static void rum_read_eeprom(struct rum_softc *);
static int rum_bbp_init(struct rum_softc *);
+static void rum_init_locked(struct rum_softc *);
static void rum_init(void *);
+static void rum_stop(void *);
static int rum_load_microcode(struct rum_softc *, const u_char *,
size_t);
static int rum_prepare_beacon(struct rum_softc *,
@@ -395,8 +391,12 @@ rum_attach(device_t self)
{
struct usb2_attach_arg *uaa = device_get_ivars(self);
struct rum_softc *sc = device_get_softc(self);
- uint8_t iface_index;
- int error;
+ struct ieee80211com *ic;
+ struct ifnet *ifp;
+ const uint8_t *ucode = NULL;
+ uint8_t bands, iface_index;
+ uint32_t tmp;
+ int error, ntries, size;
device_set_usb2_desc(self);
sc->sc_udev = uaa->device;
@@ -420,64 +420,42 @@ rum_attach(device_t self)
goto detach;
}
- /* fork rest of the attach code */
- RUM_LOCK(sc);
- rum_queue_command(sc, rum_attach_post,
- &sc->sc_synctask[0].hdr,
- &sc->sc_synctask[1].hdr);
- RUM_UNLOCK(sc);
- return (0);
-
-detach:
- rum_detach(self);
- return (ENXIO); /* failure */
-}
-
-static void
-rum_attach_post(struct usb2_proc_msg *pm)
-{
- struct rum_task *task = (struct rum_task *)pm;
- struct rum_softc *sc = task->sc;
- struct ifnet *ifp;
- struct ieee80211com *ic;
- unsigned int ntries;
- int error;
- uint32_t tmp;
- uint8_t bands;
+ 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;
+ RUM_LOCK(sc);
/* retrieve RT2573 rev. no */
- for (ntries = 0; ntries != 1000; ntries++) {
+ for (ntries = 0; ntries < 1000; ntries++) {
if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
break;
- usb2_pause_mtx(&sc->sc_mtx, hz / 1000);
+ DELAY(1000);
}
if (ntries == 1000) {
- device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
- return;
+ device_printf(self, "timeout waiting for chip to settle\n");
+ RUM_UNLOCK(sc);
+ goto detach;
}
/* retrieve MAC address and various other things from EEPROM */
rum_read_eeprom(sc);
- device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
+ device_printf(self, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
tmp, rum_get_rf(sc->rf_rev));
- error = rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
+ ucode = rt2573_ucode;
+ size = sizeof rt2573_ucode;
+ error = rum_load_microcode(sc, ucode, size);
if (error != 0) {
+ device_printf(self, "could not load 8051 microcode\n");
RUM_UNLOCK(sc);
- device_printf(sc->sc_dev, "could not load 8051 microcode\n");
- return;
+ goto detach;
}
RUM_UNLOCK(sc);
- ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
- if (ifp == NULL) {
- device_printf(sc->sc_dev, "can not if_alloc()\n");
- RUM_LOCK(sc);
- return;
- }
- ic = ifp->if_l2com;
-
ifp->if_softc = sc;
if_initname(ifp, "rum", device_get_unit(sc->sc_dev));
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
@@ -490,7 +468,6 @@ rum_attach_post(struct usb2_proc_msg *pm)
ic->ic_ifp = ifp;
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
- IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_bssid);
/* set device capabilities */
ic->ic_caps =
@@ -539,7 +516,10 @@ rum_attach_post(struct usb2_proc_msg *pm)
if (bootverbose)
ieee80211_announce(ic);
- RUM_LOCK(sc);
+ return 0;
+detach:
+ rum_detach(self);
+ return (ENXIO); /* failure */
}
static int
@@ -549,24 +529,20 @@ rum_detach(device_t self)
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
- /* wait for any post attach or other command to complete */
- usb2_proc_drain(&sc->sc_tq);
+ RUM_LOCK(sc);
+ sc->sc_flags |= RUM_FLAG_DETACH;
+ rum_stop(sc);
+ RUM_UNLOCK(sc);
- /* stop all USB transfers */
+ /* stop all USB transfers first */
usb2_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
usb2_proc_free(&sc->sc_tq);
- /* free TX list, if any */
- RUM_LOCK(sc);
- rum_unsetup_tx_list(sc);
- RUM_UNLOCK(sc);
-
if (ifp) {
bpfdetach(ifp);
ieee80211_ifdetach(ic);
if_free(ifp);
}
-
mtx_destroy(&sc->sc_mtx);
return (0);
@@ -614,8 +590,11 @@ static void
rum_vap_delete(struct ieee80211vap *vap)
{
struct rum_vap *rvp = RUM_VAP(vap);
+ struct rum_softc *sc = rvp->sc;
- usb2_callout_drain(&rvp->amrr_ch);
+ RUM_LOCK(sc);
+ usb2_callout_stop(&rvp->amrr_ch);
+ RUM_UNLOCK(sc);
ieee80211_amrr_cleanup(&rvp->amrr);
ieee80211_vap_detach(vap);
free(rvp, M_80211_VAP);
@@ -640,12 +619,17 @@ rum_tx_free(struct rum_tx_data *data, int txerr)
sc->tx_nfree++;
}
-static void
-rum_setup_tx_list(struct rum_softc *sc)
+static int
+rum_alloc_tx_list(struct rum_softc *sc)
{
struct rum_tx_data *data;
int i;
+ sc->tx_data = malloc(sizeof(struct rum_tx_data) * RUM_TX_LIST_COUNT,
+ M_USB, M_NOWAIT|M_ZERO);
+ if (sc->tx_data == NULL)
+ return (ENOMEM);
+
sc->tx_nfree = 0;
STAILQ_INIT(&sc->tx_q);
STAILQ_INIT(&sc->tx_free);
@@ -657,20 +641,18 @@ rum_setup_tx_list(struct rum_softc *sc)
STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
sc->tx_nfree++;
}
+ return 0;
}
static void
-rum_unsetup_tx_list(struct rum_softc *sc)
+rum_free_tx_list(struct rum_softc *sc)
{
struct rum_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);
+ if (sc->tx_data == NULL)
+ return;
- /* free up all node references and mbufs */
for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
data = &sc->tx_data[i];
@@ -683,6 +665,8 @@ rum_unsetup_tx_list(struct rum_softc *sc)
data->ni = NULL;
}
}
+ free(sc->tx_data, M_USB);
+ sc->tx_data = NULL;
}
static void
@@ -699,6 +683,9 @@ rum_task(struct usb2_proc_msg *pm)
struct ieee80211_node *ni;
uint32_t tmp;
+ if (sc->sc_flags & RUM_FLAG_DETACH)
+ return;
+
ostate = vap->iv_state;
switch (sc->sc_state) {
@@ -718,8 +705,7 @@ rum_task(struct usb2_proc_msg *pm)
rum_enable_mrr(sc);
rum_set_txpreamble(sc);
rum_set_basicrates(sc);
- IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
- rum_set_bssid(sc, sc->sc_bssid);
+ rum_set_bssid(sc, ni->ni_bssid);
}
if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
@@ -787,7 +773,7 @@ rum_bulk_write_callback(struct usb2_xfer *xfer)
struct ieee80211_channel *c = ic->ic_curchan;
struct rum_tx_data *data;
struct mbuf *m;
- unsigned int len;
+ int len;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
@@ -804,6 +790,15 @@ rum_bulk_write_callback(struct usb2_xfer *xfer)
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
+#if 0
+ if (sc->sc_flags & RUM_FLAG_WAIT_COMMAND) {
+ /*
+ * don't send anything while a command is pending !
+ */
+ break;
+ }
+#endif
+
data = STAILQ_FIRST(&sc->tx_q);
if (data) {
STAILQ_REMOVE_HEAD(&sc->tx_q, next);
@@ -850,13 +845,6 @@ tr_setup:
DPRINTFN(11, "transfer error, %s\n",
usb2_errstr(xfer->error));
- ifp->if_oerrors++;
- data = xfer->priv_fifo;
- if (data != NULL) {
- rum_tx_free(data, xfer->error);
- xfer->priv_fifo = NULL;
- }
-
if (xfer->error == USB_ERR_STALLED) {
/* try to clear stall first */
xfer->flags.stall_pipe = 1;
@@ -864,6 +852,13 @@ tr_setup:
}
if (xfer->error == USB_ERR_TIMEOUT)
device_printf(sc->sc_dev, "device timeout\n");
+
+ ifp->if_oerrors++;
+ data = xfer->priv_fifo;
+ if (data != NULL) {
+ rum_tx_free(data, xfer->error);
+ xfer->priv_fifo = NULL;
+ }
break;
}
}
@@ -878,7 +873,7 @@ rum_bulk_read_callback(struct usb2_xfer *xfer)
struct mbuf *m = NULL;
uint32_t flags;
uint8_t rssi = 0;
- unsigned int len;
+ int len;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
@@ -970,6 +965,7 @@ tr_setup:
goto tr_setup;
}
return;
+
}
}
@@ -1337,20 +1333,15 @@ rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
RUM_LOCK(sc);
if (ifp->if_flags & IFF_UP) {
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
- rum_queue_command(sc, rum_init_task,
- &sc->sc_synctask[0].hdr,
- &sc->sc_synctask[1].hdr);
+ rum_init_locked(sc);
startall = 1;
} else
rum_queue_command(sc, rum_promisctask,
&sc->sc_promisctask[0].hdr,
&sc->sc_promisctask[1].hdr);
} else {
- if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
- rum_queue_command(sc, rum_stop_task,
- &sc->sc_synctask[0].hdr,
- &sc->sc_synctask[1].hdr);
- }
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ rum_stop(sc);
}
RUM_UNLOCK(sc);
if (startall)
@@ -1381,7 +1372,7 @@ rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
USETW(req.wIndex, addr);
USETW(req.wLength, len);
- error = rum_do_request(sc, &req, buf);
+ error = usb2_do_request(sc->sc_udev, &sc->sc_mtx, &req, buf);
if (error != 0) {
device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
usb2_errstr(error));
@@ -1410,7 +1401,7 @@ rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
USETW(req.wIndex, reg);
USETW(req.wLength, len);
- error = rum_do_request(sc, &req, buf);
+ error = usb2_do_request(sc->sc_udev, &sc->sc_mtx, &req, buf);
if (error != 0) {
device_printf(sc->sc_dev,
"could not multi read MAC register: %s\n",
@@ -1438,7 +1429,7 @@ rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
USETW(req.wIndex, reg);
USETW(req.wLength, len);
- error = rum_do_request(sc, &req, buf);
+ error = usb2_do_request(sc->sc_udev, &sc->sc_mtx, &req, buf);
if (error != 0) {
device_printf(sc->sc_dev,
"could not multi write MAC register: %s\n",
@@ -1796,6 +1787,9 @@ rum_promisctask(struct usb2_proc_msg *pm)
struct ifnet *ifp = sc->sc_ifp;
uint32_t tmp;
+ if (sc->sc_flags & RUM_FLAG_DETACH)
+ return;
+
tmp = rum_read(sc, RT2573_TXRX_CSR0);
tmp &= ~RT2573_DROP_NOT_TO_ME;
@@ -1823,13 +1817,15 @@ rum_get_rf(int rev)
static void
rum_read_eeprom(struct rum_softc *sc)
{
+ struct ifnet *ifp = sc->sc_ifp;
+ struct ieee80211com *ic = ifp->if_l2com;
uint16_t val;
#ifdef RUM_DEBUG
int i;
#endif
/* read MAC address */
- rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6);
+ rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6);
rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
val = le16toh(val);
@@ -1937,11 +1933,9 @@ rum_bbp_init(struct rum_softc *sc)
}
static void
-rum_init_task(struct usb2_proc_msg *pm)
+rum_init_locked(struct rum_softc *sc)
{
#define N(a) (sizeof (a) / sizeof ((a)[0]))
- struct rum_task *task = (struct rum_task *)pm;
- struct rum_softc *sc = task->sc;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
uint32_t tmp;
@@ -1950,7 +1944,10 @@ rum_init_task(struct usb2_proc_msg *pm)
RUM_LOCK_ASSERT(sc, MA_OWNED);
- rum_stop_task(pm);
+ if (sc->sc_flags & RUM_FLAG_DETACH)
+ return;
+
+ rum_stop(sc);
/* initialize MAC registers to default values */
for (i = 0; i < N(rum_def_mac); i++)
@@ -1993,7 +1990,11 @@ rum_init_task(struct usb2_proc_msg *pm)
/*
* Allocate Tx and Rx xfer queues.
*/
- rum_setup_tx_list(sc);
+ error = rum_alloc_tx_list(sc);
+ if (error != 0) {
+ device_printf(sc->sc_dev, "could not allocate Tx list\n");
+ goto fail;
+ }
/* update Rx filter */
tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
@@ -2014,7 +2015,7 @@ rum_init_task(struct usb2_proc_msg *pm)
usb2_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
return;
-fail: rum_stop_task(pm);
+fail: rum_stop(sc);
#undef N
}
@@ -2026,9 +2027,7 @@ rum_init(void *priv)
struct ieee80211com *ic = ifp->if_l2com;
RUM_LOCK(sc);
- rum_queue_command(sc, rum_init_task,
- &sc->sc_synctask[0].hdr,
- &sc->sc_synctask[1].hdr);
+ rum_init_locked(sc);
RUM_UNLOCK(sc);
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
@@ -2036,10 +2035,9 @@ rum_init(void *priv)
}
static void
-rum_stop_task(struct usb2_proc_msg *pm)
+rum_stop(void *priv)
{
- struct rum_task *task = (struct rum_task *)pm;
- struct rum_softc *sc = task->sc;
+ struct rum_softc *sc = priv;
struct ifnet *ifp = sc->sc_ifp;
uint32_t tmp;
@@ -2047,17 +2045,17 @@ rum_stop_task(struct usb2_proc_msg *pm)
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
- RUM_UNLOCK(sc);
-
/*
- * Drain the USB transfers, if not already drained:
+ * stop all the transfers, if not already stopped:
*/
- usb2_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
- usb2_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
+ usb2_transfer_stop(sc->sc_xfer[RUM_BULK_WR]);
+ usb2_transfer_stop(sc->sc_xfer[RUM_BULK_RD]);
- RUM_LOCK(sc);
+ rum_free_tx_list(sc);
- rum_unsetup_tx_list(sc);
+ /* Stop now if the device has vanished */
+ if (sc->sc_flags & RUM_FLAG_DETACH)
+ return;
/* disable Rx */
tmp = rum_read(sc, RT2573_TXRX_CSR0);
@@ -2085,7 +2083,7 @@ rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size)
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
- error = rum_do_request(sc, &req, NULL);
+ error = usb2_do_request(sc->sc_udev, &sc->sc_mtx, &req, NULL);
if (error != 0) {
device_printf(sc->sc_dev, "could not run firmware: %s\n",
usb2_errstr(error));
@@ -2293,10 +2291,14 @@ rum_scantask(struct usb2_proc_msg *pm)
struct rum_softc *sc = task->sc;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = ifp->if_l2com;
+ struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
uint32_t tmp;
RUM_LOCK_ASSERT(sc, MA_OWNED);
+ if (sc->sc_flags & RUM_FLAG_DETACH)
+ return;
+
switch (sc->sc_scan_action) {
case RUM_SCAN_START:
/* abort TSF synchronization */
@@ -2305,13 +2307,19 @@ rum_scantask(struct usb2_proc_msg *pm)
rum_set_bssid(sc, ifp->if_broadcastaddr);
break;
+ case RUM_SCAN_END:
+ rum_enable_tsf_sync(sc);
+ /* XXX keep local copy */
+ rum_set_bssid(sc, vap->iv_bss->ni_bssid);
+ break;
+
case RUM_SET_CHANNEL:
rum_set_chan(sc, ic->ic_curchan);
break;
- default: /* RUM_SCAN_END */
- rum_enable_tsf_sync(sc);
- rum_set_bssid(sc, sc->sc_bssid);
+ default:
+ panic("unknown scan action %d\n", sc->sc_scan_action);
+ /* NEVER REACHED */
break;
}
}
@@ -2387,11 +2395,6 @@ rum_queue_command(struct rum_softc *sc, usb2_proc_callback_t *fn,
task->hdr.pm_callback = fn;
task->sc = sc;
- /*
- * Init and stop must be synchronous!
- */
- if ((fn == rum_init_task) || (fn == rum_stop_task))
- usb2_proc_mwait(&sc->sc_tq, t0, t1);
}
static device_method_t rum_methods[] = {
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