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1/* $OpenBSD: if_rsu.c,v 1.17 2013/04/15 09:23:01 mglocker Exp $ */
2
3/*-
4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18#include <sys/cdefs.h>
19__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rsu.c 288094 2015-09-22 05:48:51Z adrian $");
19__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rsu.c 288257 2015-09-26 07:25:53Z adrian $");
20
21/*
22 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU.
23 *
24 * TODO:
25 * o 11n HT40 support
25 * o h/w crypto
26 * o hostap / ibss / mesh
27 * o sensible RSSI levels
28 * o power-save operation
29 */
30
31#include <sys/param.h>
32#include <sys/endian.h>

--- 451 unchanged lines hidden (view full) ---

484 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__);
485
486 /* Enable basic HT */
487 ic->ic_htcaps = IEEE80211_HTC_HT |
488 IEEE80211_HTC_AMPDU |
489 IEEE80211_HTC_AMSDU |
490 IEEE80211_HTCAP_MAXAMSDU_3839 |
491 IEEE80211_HTCAP_SMPS_OFF;
493
494 /*
495 * XXX HT40 isn't working in this driver yet - there's
496 * something missing. Disable it for now.
497 */
498#if 0
492 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40;
500#endif
493
494 /* set number of spatial streams */
495 ic->ic_txstream = 1;
496 ic->ic_rxstream = 1;
497 }
498
499 /* Set supported .11b and .11g rates. */
500 bands = 0;

--- 864 unchanged lines hidden (view full) ---

1365 /* Write IEs to be included in the association request. */
1366 frm = (uint8_t *)&fixed[1];
1367 frm = ieee80211_add_rsn(frm, vap);
1368 frm = ieee80211_add_wpa(frm, vap);
1369 frm = ieee80211_add_qos(frm, ni);
1370 if ((ic->ic_flags & IEEE80211_F_WME) &&
1371 (ni->ni_ies.wme_ie != NULL))
1372 frm = ieee80211_add_wme_info(frm, &ic->ic_wme);
1381 if (ni->ni_flags & IEEE80211_NODE_HT)
1373 if (ni->ni_flags & IEEE80211_NODE_HT) {
1374 frm = ieee80211_add_htcap(frm, ni);
1375 frm = ieee80211_add_htinfo(frm, ni);
1376 }
1377 bss->ieslen = htole32(frm - (uint8_t *)fixed);
1378 bss->len = htole32(((frm - buf) + 3) & ~3);
1379 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD,
1380 "%s: sending join bss command to %s chan %d\n",
1381 __func__,
1382 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig));
1383 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf)));
1384}

--- 448 unchanged lines hidden (view full) ---

1833 if (data == NULL)
1834 goto tr_setup;
1835 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
1836 m = rsu_rxeof(xfer, data, &rssi);
1837 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
1838 /* FALLTHROUGH */
1839 case USB_ST_SETUP:
1840tr_setup:
1841 /*
1842 * XXX TODO: if we have an mbuf list, but then
1843 * we hit data == NULL, what now?
1844 */
1845 data = STAILQ_FIRST(&sc->sc_rx_inactive);
1846 if (data == NULL) {
1847 KASSERT(m == NULL, ("mbuf isn't NULL"));
1848 return;
1849 }
1850 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next);
1851 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next);
1852 usbd_xfer_set_frame_data(xfer, 0, data->buf,

--- 141 unchanged lines hidden (view full) ---

1994 struct rsu_softc *sc = usbd_xfer_softc(xfer);
1995
1996 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C);
1997
1998 /* This kicks the TX taskqueue */
1999 rsu_start(sc);
2000}
2001
2002/*
2003 * Transmit the given frame.
2004 *
2005 * This doesn't free the node or mbuf upon failure.
2006 */
2007static int
2008rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni,
2009 struct mbuf *m0, struct rsu_data *data)
2010{
2011 struct ieee80211com *ic = &sc->sc_ic;
2012 struct ieee80211vap *vap = ni->ni_vap;
2013 struct ieee80211_frame *wh;
2014 struct ieee80211_key *k = NULL;

--- 14 unchanged lines hidden (view full) ---

2029 __func__, data, m0);
2030
2031 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2032 k = ieee80211_crypto_encap(ni, m0);
2033 if (k == NULL) {
2034 device_printf(sc->sc_dev,
2035 "ieee80211_crypto_encap returns NULL.\n");
2036 /* XXX we don't expect the fragmented frames */
2034 m_freem(m0);
2037 return (ENOBUFS);
2038 }
2039 wh = mtod(m0, struct ieee80211_frame *);
2040 }
2041 /* If we have QoS then use it */
2042 /* XXX TODO: mbuf WME/PRI versus TID? */
2043 if (IEEE80211_QOS_HAS_SEQ(wh)) {
2044 /* Has QoS */

--- 99 unchanged lines hidden (view full) ---

2144 struct rsu_softc *sc = ic->ic_softc;
2145 int error;
2146
2147 RSU_LOCK(sc);
2148 if (!sc->sc_running) {
2149 RSU_UNLOCK(sc);
2150 return (ENXIO);
2151 }
2152
2153 /*
2154 * XXX TODO: ensure that we treat 'm' as a list of frames
2155 * to transmit!
2156 */
2157 error = mbufq_enqueue(&sc->sc_snd, m);
2158 if (error) {
2159 RSU_DPRINTF(sc, RSU_DEBUG_TX,
2160 "%s: mbufq_enable: failed (%d)\n",
2161 __func__,
2162 error);
2163 RSU_UNLOCK(sc);
2164 return (error);

--- 44 unchanged lines hidden (view full) ---

2209
2210 if (rsu_tx_start(sc, ni, m, bf) != 0) {
2211 RSU_DPRINTF(sc, RSU_DEBUG_TX,
2212 "%s: failed to transmit\n", __func__);
2213 if_inc_counter(ni->ni_vap->iv_ifp,
2214 IFCOUNTER_OERRORS, 1);
2215 rsu_freebuf(sc, bf);
2216 ieee80211_free_node(ni);
2217 m_freem(m);
2218 break;
2219 }
2220 }
2221}
2222
2223static void
2224rsu_start(struct rsu_softc *sc)
2225{

--- 497 unchanged lines hidden (view full) ---

2723 if (bf == NULL) {
2724 ieee80211_free_node(ni);
2725 m_freem(m);
2726 RSU_UNLOCK(sc);
2727 return (ENOBUFS);
2728 }
2729 if (rsu_tx_start(sc, ni, m, bf) != 0) {
2730 ieee80211_free_node(ni);
2731 m_freem(m);
2732 rsu_freebuf(sc, bf);
2733 RSU_UNLOCK(sc);
2734 return (EIO);
2735 }
2736 RSU_UNLOCK(sc);
2737
2738 return (0);
2739}

--- 73 unchanged lines hidden (view full) ---

2813 /* Set PS mode fully active */
2814 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE);
2815
2816 if (error != 0) {
2817 device_printf(sc->sc_dev, "could not set PS mode\n");
2818 goto fail;
2819 }
2820
2812 if (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) {
2813 /* Enable 40MHz mode. */
2814 error = rsu_fw_iocmd(sc,
2815 SM(R92S_IOCMD_CLASS, 0xf4) |
2816 SM(R92S_IOCMD_INDEX, 0x00) |
2817 SM(R92S_IOCMD_VALUE, 0x0007));
2818 if (error != 0) {
2819 device_printf(sc->sc_dev,
2820 "could not enable 40MHz mode\n");
2821 goto fail;
2822 }
2823 }
2824
2821 sc->sc_scan_pass = 0;
2822 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]);
2823
2824 /* We're ready to go. */
2825 sc->sc_running = 1;
2826 sc->sc_scanning = 0;
2827 return;
2828fail:

--- 38 unchanged lines hidden ---