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iwn: switch to ieee80211_add_channel*()

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Switch to add_channel / add_channel_ht40 + pass channel's TX power
for the last.

Tested by:	dhw
Reviewed by:	adrian
Differential Revision:	https://reviews.freebsd.org/D6141
This commit is contained in:
Andriy Voskoboinyk 2016-05-01 22:00:40 +00:00
parent ec70917ffa
commit f5c911273a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=298903
1 changed files with 37 additions and 69 deletions
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106
sys/dev/iwn/if_iwn.c
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@ -2381,12 +2381,24 @@ iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans,
{
struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
const struct iwn_chan_band *band = &iwn_bands[n];
struct ieee80211_channel *c;
uint8_t bands[IEEE80211_MODE_BYTES];
uint8_t chan;
int i, nflags;
int i, error, nflags;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
memset(bands, 0, sizeof(bands));
if (n == 0) {
setbit(bands, IEEE80211_MODE_11B);
setbit(bands, IEEE80211_MODE_11G);
if (sc->sc_flags & IWN_FLAG_HAS_11N)
setbit(bands, IEEE80211_MODE_11NG);
} else {
setbit(bands, IEEE80211_MODE_11A);
if (sc->sc_flags & IWN_FLAG_HAS_11N)
setbit(bands, IEEE80211_MODE_11NA);
}
for (i = 0; i < band->nchan; i++) {
if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) {
DPRINTF(sc, IWN_DEBUG_RESET,
@ -2396,49 +2408,20 @@ iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans,
continue;
}
if (*nchans >= maxchans)
break;
chan = band->chan[i];
nflags = iwn_eeprom_channel_flags(&channels[i]);
c = &chans[(*nchans)++];
c->ic_ieee = chan;
c->ic_maxregpower = channels[i].maxpwr;
c->ic_maxpower = 2*c->ic_maxregpower;
if (n == 0) { /* 2GHz band */
c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_G);
/* G =>'s B is supported */
c->ic_flags = IEEE80211_CHAN_B | nflags;
if (*nchans >= maxchans)
break;
c = &chans[(*nchans)++];
c[0] = c[-1];
c->ic_flags = IEEE80211_CHAN_G | nflags;
} else { /* 5GHz band */
c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_A);
c->ic_flags = IEEE80211_CHAN_A | nflags;
}
error = ieee80211_add_channel(chans, maxchans, nchans,
chan, 0, channels[i].maxpwr, nflags, bands);
if (error != 0)
break;
/* Save maximum allowed TX power for this channel. */
/* XXX wrong */
sc->maxpwr[chan] = channels[i].maxpwr;
DPRINTF(sc, IWN_DEBUG_RESET,
"add chan %d flags 0x%x maxpwr %d\n", chan,
channels[i].flags, channels[i].maxpwr);
if (sc->sc_flags & IWN_FLAG_HAS_11N) {
if (*nchans >= maxchans)
break;
/* add HT20, HT40 added separately */
c = &chans[(*nchans)++];
c[0] = c[-1];
c->ic_flags |= IEEE80211_CHAN_HT20;
}
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);
@ -2449,12 +2432,10 @@ static void
iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans,
struct ieee80211_channel chans[])
{
struct ieee80211com *ic = &sc->sc_ic;
struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
const struct iwn_chan_band *band = &iwn_bands[n];
struct ieee80211_channel *c, *cent, *extc;
uint8_t chan;
int i, nflags;
int i, error, nflags;
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s start\n", __func__);
@ -2472,46 +2453,33 @@ iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans,
continue;
}
if (*nchans + 1 >= maxchans)
break;
chan = band->chan[i];
nflags = iwn_eeprom_channel_flags(&channels[i]);
/*
* Each entry defines an HT40 channel pair; find the
* center channel, then the extension channel above.
*/
cent = ieee80211_find_channel_byieee(ic, chan,
(n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A));
if (cent == NULL) { /* XXX shouldn't happen */
nflags |= (n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A);
error = ieee80211_add_channel_ht40(chans, maxchans, nchans,
chan, channels[i].maxpwr, nflags);
switch (error) {
case EINVAL:
device_printf(sc->sc_dev,
"%s: no entry for channel %d\n", __func__, chan);
continue;
}
extc = ieee80211_find_channel(ic, cent->ic_freq+20,
(n == 5 ? IEEE80211_CHAN_G : IEEE80211_CHAN_A));
if (extc == NULL) {
case ENOENT:
DPRINTF(sc, IWN_DEBUG_RESET,
"%s: skip chan %d, extension channel not found\n",
__func__, chan);
continue;
case ENOBUFS:
device_printf(sc->sc_dev,
"%s: channel table is full!\n", __func__);
break;
case 0:
DPRINTF(sc, IWN_DEBUG_RESET,
"add ht40 chan %d flags 0x%x maxpwr %d\n",
chan, channels[i].flags, channels[i].maxpwr);
/* FALLTHROUGH */
default:
break;
}
DPRINTF(sc, IWN_DEBUG_RESET,
"add ht40 chan %d flags 0x%x maxpwr %d\n",
chan, channels[i].flags, channels[i].maxpwr);
c = &chans[(*nchans)++];
c[0] = cent[0];
c->ic_extieee = extc->ic_ieee;
c->ic_flags &= ~IEEE80211_CHAN_HT;
c->ic_flags |= IEEE80211_CHAN_HT40U | nflags;
c = &chans[(*nchans)++];
c[0] = extc[0];
c->ic_extieee = cent->ic_ieee;
c->ic_flags &= ~IEEE80211_CHAN_HT;
c->ic_flags |= IEEE80211_CHAN_HT40D | nflags;
}
DPRINTF(sc, IWN_DEBUG_TRACE, "->%s end\n", __func__);