Date:2010-06-25 10:11:54 (13 years 9 months ago)
Author:hcg
Commit:d04b55e43c5f5dd0999aae5b3df01d658908d481
Message:Add script support for Marvell 88W8686 mac80211. This is a hack now, but it works. cfg80211 is very broken in the current mainline Marvell driver. A new patch set to address this is in linux-next, I just do not have time today to address it.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21899 3c298f89-4303-0410-b956-a3cf2f4a3e73
Files: target/linux/omap35xx/gumstix/base-files/lib/wifi/mac80211.sh (1 diff)

Change Details

target/linux/omap35xx/gumstix/base-files/lib/wifi/mac80211.sh
1#!/bin/sh
2append DRIVERS "mac80211"
3
4mac80211_hostapd_setup_base() {
5    local phy="$1"
6    local ifname="$2"
7
8    cfgfile="/var/run/hostapd-$phy.conf"
9    config_get device "$vif" device
10    config_get country "$device" country
11    config_get hwmode "$device" hwmode
12    config_get channel "$device" channel
13    config_get_bool noscan "$device" noscan
14    [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
15    [ "$channel" = auto ] && channel=
16    [ -n "$hwmode" ] && {
17        config_get hwmode_11n "$device" hwmode_11n
18        [ -n "$hwmode_11n" ] && {
19            hwmode="$hwmode_11n"
20            append base_cfg "ieee80211n=1" "$N"
21            config_get htmode "$device" htmode
22            config_get ht_capab_list "$device" ht_capab
23            case "$htmode" in
24                HT20|HT40+|HT40-) ht_capab="[$htmode]";;
25                *)ht_capab=;;
26            esac
27            for cap in $ht_capab_list; do
28                ht_capab="$ht_capab[$cap]"
29            done
30            [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
31        }
32    }
33    cat > "$cfgfile" <<EOF
34ctrl_interface=/var/run/hostapd-$phy
35driver=nl80211
36wmm_ac_bk_cwmin=4
37wmm_ac_bk_cwmax=10
38wmm_ac_bk_aifs=7
39wmm_ac_bk_txop_limit=0
40wmm_ac_bk_acm=0
41wmm_ac_be_aifs=3
42wmm_ac_be_cwmin=4
43wmm_ac_be_cwmax=10
44wmm_ac_be_txop_limit=0
45wmm_ac_be_acm=0
46wmm_ac_vi_aifs=2
47wmm_ac_vi_cwmin=3
48wmm_ac_vi_cwmax=4
49wmm_ac_vi_txop_limit=94
50wmm_ac_vi_acm=0
51wmm_ac_vo_aifs=2
52wmm_ac_vo_cwmin=2
53wmm_ac_vo_cwmax=3
54wmm_ac_vo_txop_limit=47
55wmm_ac_vo_acm=0
56tx_queue_data3_aifs=7
57tx_queue_data3_cwmin=15
58tx_queue_data3_cwmax=1023
59tx_queue_data3_burst=0
60tx_queue_data2_aifs=3
61tx_queue_data2_cwmin=15
62tx_queue_data2_cwmax=63
63tx_queue_data2_burst=0
64tx_queue_data1_aifs=1
65tx_queue_data1_cwmin=7
66tx_queue_data1_cwmax=15
67tx_queue_data1_burst=3.0
68tx_queue_data0_aifs=1
69tx_queue_data0_cwmin=3
70tx_queue_data0_cwmax=7
71tx_queue_data0_burst=1.5
72${hwmode:+hw_mode=$hwmode}
73${channel:+channel=$channel}
74${country:+country_code=$country}
75${noscan:+noscan=$noscan}
76$base_cfg
77
78EOF
79}
80
81mac80211_hostapd_setup_bss() {
82    local phy="$1"
83    local vif="$2"
84
85    hostapd_cfg=
86    cfgfile="/var/run/hostapd-$phy.conf"
87    config_get ifname "$vif" ifname
88
89    if [ -f "$cfgfile" ]; then
90        append hostapd_cfg "bss=$ifname" "$N"
91    else
92        mac80211_hostapd_setup_base "$phy" "$ifname"
93        append hostapd_cfg "interface=$ifname" "$N"
94    fi
95
96    local net_cfg bridge
97    net_cfg="$(find_net_config "$vif")"
98    [ -z "$net_cfg" ] || bridge="$(bridge_interface "$net_cfg")"
99    config_set "$vif" bridge "$bridge"
100
101    hostapd_set_bss_options hostapd_cfg "$vif"
102
103    config_get_bool wds "$vif" wds 0
104    [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
105
106    config_get macaddr "$vif" macaddr
107    config_get_bool hidden "$vif" hidden 0
108    cat >> /var/run/hostapd-$phy.conf <<EOF
109$hostapd_cfg
110wmm_enabled=1
111bssid=$macaddr
112ignore_broadcast_ssid=$hidden
113EOF
114}
115
116mac80211_start_vif() {
117    local vif="$1"
118    local ifname="$2"
119
120    local net_cfg
121    net_cfg="$(find_net_config "$vif")"
122    [ -z "$net_cfg" ] || start_net "$ifname" "$net_cfg"
123
124    set_wifi_up "$vif" "$ifname"
125}
126
127find_mac80211_phy() {
128    local device="$1"
129
130    local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
131    config_get phy "$device" phy
132    [ -z "$phy" -a -n "$macaddr" ] && {
133        for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
134            [ "$macaddr" = "$(cat /sys/class/ieee80211/${phy}/macaddress)" ] || continue
135            config_set "$device" phy "$phy"
136            break
137        done
138        config_get phy "$device" phy
139    }
140    [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
141        echo "PHY for wifi device $1 not found"
142        return 1
143    }
144    [ -z "$macaddr" ] && {
145        config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
146    }
147    return 0
148}
149
150scan_mac80211() {
151    local device="$1"
152    local adhoc sta ap monitor mesh
153
154    config_get vifs "$device" vifs
155    for vif in $vifs; do
156        config_get mode "$vif" mode
157        case "$mode" in
158            adhoc|sta|ap|monitor|mesh)
159                append $mode "$vif"
160            ;;
161            *) echo "$device($vif): Invalid mode, ignored."; continue;;
162        esac
163    done
164
165    config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}"
166}
167
168
169disable_mac80211() (
170    local device="$1"
171
172    find_mac80211_phy "$device" || return 0
173    config_get phy "$device" phy
174
175    set_wifi_down "$device"
176    # kill all running hostapd and wpa_supplicant processes that
177    # are running on atheros/mac80211 vifs
178    for pid in `pidof hostapd`; do
179        grep -E "$phy" /proc/$pid/cmdline >/dev/null && \
180            kill $pid
181    done
182
183    include /lib/network
184    for wdev in $(ls /sys/class/ieee80211/${phy}/device/net 2>/dev/null); do
185        [ -f "/var/run/$wdev.pid" ] && kill $(cat /var/run/$wdev.pid) >&/dev/null 2>&1
186        for pid in `pidof wpa_supplicant`; do
187            grep "$wdev" /proc/$pid/cmdline >/dev/null && \
188                kill $pid
189        done
190        ifconfig "$wdev" down 2>/dev/null
191        unbridge "$dev"
192        iw dev "$wdev" del
193    done
194
195    return 0
196)
197get_freq() {
198    local phy="$1"
199    local chan="$2"
200
201    iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
202}
203
204enable_mac80211() {
205    local device="$1"
206    config_get channel "$device" channel
207    config_get vifs "$device" vifs
208    config_get txpower "$device" txpower
209    config_get country "$device" country
210    config_get distance "$device" distance
211    find_mac80211_phy "$device" || return 0
212    config_get phy "$device" phy
213    local i=0
214    local macidx=0
215    local apidx=0
216    fixed=""
217
218    [ -n "$country" ] && iw reg set "$country"
219    [ "$channel" = "auto" -o "$channel" = "0" ] || {
220        fixed=1
221    }
222
223    [ -n "$distance" ] && iw phy "$phy" set distance "$distance"
224
225    export channel fixed
226    # convert channel to frequency
227    local freq="$(get_freq "$phy" "${fixed:+$channel}")"
228
229    wifi_fixup_hwmode "$device" "g"
230    for vif in $vifs; do
231        while [ -d "/sys/class/net/wlan$i" ]; do
232            i=$(($i + 1))
233        done
234
235        config_get ifname "$device" ifname
236        [ -n "$ifname" ] || {
237            ifname="wlan0"
238        }
239        config_set "$vif" ifname "$ifname"
240
241        config_get mode "$vif" mode
242        config_get ssid "$vif" ssid
243
244        # It is far easier to delete and create the desired interface
245        case "$mode" in
246            adhoc)
247                iw phy "$phy" interface add "$ifname" type adhoc
248            ;;
249            ap)
250                # Hostapd will handle recreating the interface and
251                # it's accompanying monitor
252                apidx="$(($apidx + 1))"
253                i=$(($i + 1))
254                [ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
255            ;;
256            mesh)
257                config_get mesh_id "$vif" mesh_id
258                iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
259            ;;
260            monitor)
261                iw phy "$phy" interface add "$ifname" type monitor
262            ;;
263            sta)
264                local wdsflag
265                config_get_bool wds "$vif" wds 0
266            ;;
267        esac
268
269        # All interfaces must have unique mac addresses
270        # which can either be explicitly set in the device
271        # section, or automatically generated
272        config_get macaddr "$device" macaddr
273        local mac_1="${macaddr%%:*}"
274        local mac_2="${macaddr#*:}"
275
276        config_get vif_mac "$vif" macaddr
277        [ -n "$vif_mac" ] || {
278            if [ "$macidx" -gt 0 ]; then
279                offset="$(( 2 + $macidx * 4 ))"
280            else
281                offset="0"
282            fi
283            vif_mac="$( printf %02x $((0x$mac_1 + $offset)) ):$mac_2"
284            macidx="$(($macidx + 1))"
285        }
286        [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
287        config_set "$vif" macaddr "$vif_mac"
288
289        # !! ap !!
290        #
291        # ALL ap functionality will be passed to hostapd
292        #
293        # !! station !!
294        #
295        # ALL station functionality will be passed to wpa_supplicant
296        #
297        #if [ ! "$mode" = "ap" ]; then
298            # We attempt to set the channel for all interfaces, although
299            # mac80211 may not support it or the driver might not yet
300            # for ap mode this is handled by hostapd
301        # echo "iw dev set channel"
302        # [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
303        #fi
304
305        # txpower is not yet implemented in iw
306# config_get vif_txpower "$vif" txpower
307        # use vif_txpower (from wifi-iface) to override txpower (from
308        # wifi-device) if the latter doesn't exist
309# txpower="${txpower:-$vif_txpower}"
310# [ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
311
312    done
313
314    local start_hostapd=
315    rm -f /var/run/hostapd-$phy.conf
316    for vif in $vifs; do
317        config_get mode "$vif" mode
318        [ "$mode" = "ap" ] || continue
319        mac80211_hostapd_setup_bss "$phy" "$vif"
320        start_hostapd=1
321    done
322
323    [ -n "$start_hostapd" ] && {
324        hostapd -P /var/run/wifi-$phy.pid -B /var/run/hostapd-$phy.conf || {
325            echo "Failed to start hostapd for $phy"
326            return
327        }
328        sleep 2
329
330        for vif in $vifs; do
331            config_get mode "$vif" mode
332            config_get ifname "$vif" ifname
333            [ "$mode" = "ap" ] || continue
334            mac80211_start_vif "$vif" "$ifname"
335        done
336    }
337
338    for vif in $vifs; do
339        config_get mode "$vif" mode
340        config_get ifname "$vif" ifname
341        [ ! "$mode" = "ap" ] || continue
342        ifconfig "$ifname" up
343
344        if [ ! "$mode" = "ap" ]; then
345            ifconfig "$ifname" up
346            case "$mode" in
347                adhoc)
348                    config_get bssid "$vif" bssid
349                    config_get ssid "$vif" ssid
350                    iw dev "$ifname" ibss join "$ssid" $freq ${fixed:+fixed-freq} $bssid
351                ;;
352                sta)
353                    if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
354                        wpa_supplicant_setup_vif "$vif" mac80211 || {
355                            echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
356                            # make sure this wifi interface won't accidentally stay open without encryption
357                            ifconfig "$ifname" down
358                            continue
359                        }
360                    fi
361                ;;
362            esac
363            mac80211_start_vif "$vif" "$ifname"
364        fi
365    done
366
367}
368
369
370check_device() {
371    config_get phy "$1" phy
372    [ -z "$phy" ] && {
373        find_mac80211_phy "$1" >/dev/null || return 0
374        config_get phy "$1" phy
375    }
376    [ "$phy" = "$dev" ] && found=1
377}
378
379detect_mac80211() {
380    devidx=0
381    config_load wireless
382    while :; do
383        config_get type "radio$devidx" type
384        [ -n "$type" ] || break
385        devidx=$(($devidx + 1))
386    done
387    for dev in $(ls /sys/class/ieee80211); do
388        found=0
389        config_foreach check_device wifi-device
390        [ "$found" -gt 0 ] && continue
391
392        mode_11n=""
393        mode_band="g"
394        channel="5"
395        ht_cap=0
396        for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do
397            ht_cap="$(($ht_cap | $cap))"
398        done
399        ht_capab="";
400        [ "$ht_cap" -gt 0 ] && {
401            mode_11n="n"
402            append ht_capab " option htmode HT20" "$N"
403
404            list=" list ht_capab"
405            [ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list LDPC" "$N"
406            [ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list SHORT-GI-20" "$N"
407            [ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list SHORT-GI-40" "$N"
408            [ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list TX-STBC" "$N"
409            [ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list RX-STBC1" "$N"
410            [ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list RX-STBC12" "$N"
411            [ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list RX-STBC123" "$N"
412            [ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list DSSS_CCK-40" "$N"
413        }
414        iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
415
416        cat <<EOF
417config wifi-device radio$devidx
418    option type mac80211
419    option channel ${channel}
420    option macaddr $(cat /sys/class/ieee80211/${dev}/macaddress)
421    option hwmode 11${mode_11n}${mode_band}
422$ht_capab
423    # REMOVE THIS LINE TO ENABLE WIFI:
424    option disabled 1
425
426config wifi-iface
427    option device radio$devidx
428    option network lan
429    option mode ap
430    option ssid OpenWrt
431    option encryption none
432
433EOF
434    devidx=$(($devidx + 1))
435    done
436}
437

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