wpi, iwn: implement ic_getradiocaps method
This will allow to restore channel list after switching interface to more restrictive regdomain. Tested with Intel 3945BG (wpi) only. Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D4863
This commit is contained in:
parent
c16d674c2d
commit
1c6b43df0a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=293716
@ -177,11 +177,15 @@ static void iwn4965_print_power_group(struct iwn_softc *, int);
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#endif
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static void iwn5000_read_eeprom(struct iwn_softc *);
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static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *);
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static void iwn_read_eeprom_band(struct iwn_softc *, int);
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static void iwn_read_eeprom_ht40(struct iwn_softc *, int);
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static void iwn_read_eeprom_band(struct iwn_softc *, int, int, int *,
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struct ieee80211_channel[]);
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static void iwn_read_eeprom_ht40(struct iwn_softc *, int, int, int *,
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struct ieee80211_channel[]);
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static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t);
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static struct iwn_eeprom_chan *iwn_find_eeprom_channel(struct iwn_softc *,
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struct ieee80211_channel *);
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static void iwn_getradiocaps(struct ieee80211com *, int, int *,
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struct ieee80211_channel[]);
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static int iwn_setregdomain(struct ieee80211com *,
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struct ieee80211_regdomain *, int,
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struct ieee80211_channel[]);
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@ -666,6 +670,7 @@ iwn_attach(device_t dev)
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ic->ic_set_channel = iwn_set_channel;
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ic->ic_scan_curchan = iwn_scan_curchan;
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ic->ic_scan_mindwell = iwn_scan_mindwell;
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ic->ic_getradiocaps = iwn_getradiocaps;
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ic->ic_setregdomain = iwn_setregdomain;
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iwn_radiotap_attach(sc);
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@ -2371,9 +2376,9 @@ iwn_eeprom_channel_flags(struct iwn_eeprom_chan *channel)
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}
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static void
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iwn_read_eeprom_band(struct iwn_softc *sc, int n)
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iwn_read_eeprom_band(struct iwn_softc *sc, int n, int maxchans, int *nchans,
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struct ieee80211_channel chans[])
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{
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struct ieee80211com *ic = &sc->sc_ic;
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struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
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const struct iwn_chan_band *band = &iwn_bands[n];
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struct ieee80211_channel *c;
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@ -2390,10 +2395,14 @@ iwn_read_eeprom_band(struct iwn_softc *sc, int n)
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channels[i].maxpwr);
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continue;
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}
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if (*nchans >= maxchans)
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break;
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chan = band->chan[i];
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nflags = iwn_eeprom_channel_flags(&channels[i]);
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c = &ic->ic_channels[ic->ic_nchans++];
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c = &chans[(*nchans)++];
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c->ic_ieee = chan;
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c->ic_maxregpower = channels[i].maxpwr;
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c->ic_maxpower = 2*c->ic_maxregpower;
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@ -2402,7 +2411,11 @@ iwn_read_eeprom_band(struct iwn_softc *sc, int n)
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c->ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_G);
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/* G =>'s B is supported */
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c->ic_flags = IEEE80211_CHAN_B | nflags;
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c = &ic->ic_channels[ic->ic_nchans++];
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if (*nchans >= maxchans)
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break;
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c = &chans[(*nchans)++];
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c[0] = c[-1];
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c->ic_flags = IEEE80211_CHAN_G | nflags;
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} else { /* 5GHz band */
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@ -2418,8 +2431,11 @@ iwn_read_eeprom_band(struct iwn_softc *sc, int n)
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channels[i].flags, channels[i].maxpwr);
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if (sc->sc_flags & IWN_FLAG_HAS_11N) {
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if (*nchans >= maxchans)
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break;
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/* add HT20, HT40 added separately */
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c = &ic->ic_channels[ic->ic_nchans++];
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c = &chans[(*nchans)++];
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c[0] = c[-1];
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c->ic_flags |= IEEE80211_CHAN_HT20;
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}
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@ -2430,7 +2446,8 @@ iwn_read_eeprom_band(struct iwn_softc *sc, int n)
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}
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static void
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iwn_read_eeprom_ht40(struct iwn_softc *sc, int n)
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iwn_read_eeprom_ht40(struct iwn_softc *sc, int n, int maxchans, int *nchans,
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struct ieee80211_channel chans[])
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{
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struct ieee80211com *ic = &sc->sc_ic;
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struct iwn_eeprom_chan *channels = sc->eeprom_channels[n];
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@ -2454,6 +2471,10 @@ iwn_read_eeprom_ht40(struct iwn_softc *sc, int n)
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channels[i].maxpwr);
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continue;
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}
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if (*nchans + 1 >= maxchans)
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break;
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chan = band->chan[i];
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nflags = iwn_eeprom_channel_flags(&channels[i]);
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@ -2481,12 +2502,12 @@ iwn_read_eeprom_ht40(struct iwn_softc *sc, int n)
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"add ht40 chan %d flags 0x%x maxpwr %d\n",
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chan, channels[i].flags, channels[i].maxpwr);
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c = &ic->ic_channels[ic->ic_nchans++];
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c = &chans[(*nchans)++];
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c[0] = cent[0];
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c->ic_extieee = extc->ic_ieee;
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c->ic_flags &= ~IEEE80211_CHAN_HT;
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c->ic_flags |= IEEE80211_CHAN_HT40U | nflags;
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c = &ic->ic_channels[ic->ic_nchans++];
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c = &chans[(*nchans)++];
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c[0] = extc[0];
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c->ic_extieee = cent->ic_ieee;
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c->ic_flags &= ~IEEE80211_CHAN_HT;
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@ -2505,10 +2526,13 @@ iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr)
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iwn_read_prom_data(sc, addr, &sc->eeprom_channels[n],
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iwn_bands[n].nchan * sizeof (struct iwn_eeprom_chan));
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if (n < 5)
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iwn_read_eeprom_band(sc, n);
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else
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iwn_read_eeprom_ht40(sc, n);
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if (n < 5) {
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iwn_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
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ic->ic_channels);
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} else {
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iwn_read_eeprom_ht40(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
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ic->ic_channels);
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}
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ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
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}
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@ -2538,6 +2562,20 @@ iwn_find_eeprom_channel(struct iwn_softc *sc, struct ieee80211_channel *c)
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return NULL;
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}
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static void
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iwn_getradiocaps(struct ieee80211com *ic,
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int maxchans, int *nchans, struct ieee80211_channel chans[])
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{
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struct iwn_softc *sc = ic->ic_softc;
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int i;
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/* Parse the list of authorized channels. */
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for (i = 0; i < 5 && *nchans < maxchans; i++)
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iwn_read_eeprom_band(sc, i, maxchans, nchans, chans);
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for (i = 5; i < IWN_NBANDS - 1 && *nchans < maxchans; i++)
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iwn_read_eeprom_ht40(sc, i, maxchans, nchans, chans);
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}
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/*
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* Enforce flags read from EEPROM.
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*/
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@ -166,10 +166,13 @@ static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
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static int wpi_read_eeprom(struct wpi_softc *,
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uint8_t macaddr[IEEE80211_ADDR_LEN]);
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static uint32_t wpi_eeprom_channel_flags(struct wpi_eeprom_chan *);
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static void wpi_read_eeprom_band(struct wpi_softc *, uint8_t);
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static void wpi_read_eeprom_band(struct wpi_softc *, uint8_t, int, int *,
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struct ieee80211_channel[]);
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static int wpi_read_eeprom_channels(struct wpi_softc *, uint8_t);
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static struct wpi_eeprom_chan *wpi_find_eeprom_channel(struct wpi_softc *,
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struct ieee80211_channel *);
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static void wpi_getradiocaps(struct ieee80211com *, int, int *,
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struct ieee80211_channel[]);
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static int wpi_setregdomain(struct ieee80211com *,
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struct ieee80211_regdomain *, int,
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struct ieee80211_channel[]);
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@ -516,6 +519,7 @@ wpi_attach(device_t dev)
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ic->ic_set_channel = wpi_set_channel;
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ic->ic_scan_curchan = wpi_scan_curchan;
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ic->ic_scan_mindwell = wpi_scan_mindwell;
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ic->ic_getradiocaps = wpi_getradiocaps;
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ic->ic_setregdomain = wpi_setregdomain;
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sc->sc_update_rx_ring = wpi_update_rx_ring;
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@ -1417,9 +1421,9 @@ wpi_eeprom_channel_flags(struct wpi_eeprom_chan *channel)
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}
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static void
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wpi_read_eeprom_band(struct wpi_softc *sc, uint8_t n)
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wpi_read_eeprom_band(struct wpi_softc *sc, uint8_t n, int maxchans,
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int *nchans, struct ieee80211_channel chans[])
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{
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struct ieee80211com *ic = &sc->sc_ic;
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struct wpi_eeprom_chan *channels = sc->eeprom_channels[n];
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const struct wpi_chan_band *band = &wpi_bands[n];
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struct ieee80211_channel *c;
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@ -1434,10 +1438,13 @@ wpi_read_eeprom_band(struct wpi_softc *sc, uint8_t n)
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continue;
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}
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if (*nchans >= maxchans)
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break;
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chan = band->chan[i];
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nflags = wpi_eeprom_channel_flags(&channels[i]);
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c = &ic->ic_channels[ic->ic_nchans++];
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c = &chans[(*nchans)++];
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c->ic_ieee = chan;
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c->ic_maxregpower = channels[i].maxpwr;
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c->ic_maxpower = 2*c->ic_maxregpower;
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@ -1448,7 +1455,11 @@ wpi_read_eeprom_band(struct wpi_softc *sc, uint8_t n)
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/* G =>'s B is supported */
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c->ic_flags = IEEE80211_CHAN_B | nflags;
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c = &ic->ic_channels[ic->ic_nchans++];
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if (*nchans >= maxchans)
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break;
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c = &chans[(*nchans)++];
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c[0] = c[-1];
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c->ic_flags = IEEE80211_CHAN_G | nflags;
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} else { /* 5GHz band */
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@ -1465,7 +1476,7 @@ wpi_read_eeprom_band(struct wpi_softc *sc, uint8_t n)
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"adding chan %d (%dMHz) flags=0x%x maxpwr=%d passive=%d,"
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" offset %d\n", chan, c->ic_freq,
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channels[i].flags, sc->maxpwr[chan],
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IEEE80211_IS_CHAN_PASSIVE(c), ic->ic_nchans);
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IEEE80211_IS_CHAN_PASSIVE(c), *nchans);
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}
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}
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@ -1489,7 +1500,8 @@ wpi_read_eeprom_channels(struct wpi_softc *sc, uint8_t n)
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return error;
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}
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wpi_read_eeprom_band(sc, n);
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wpi_read_eeprom_band(sc, n, IEEE80211_CHAN_MAX, &ic->ic_nchans,
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ic->ic_channels);
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ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans);
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@ -1511,6 +1523,18 @@ wpi_find_eeprom_channel(struct wpi_softc *sc, struct ieee80211_channel *c)
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return NULL;
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}
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static void
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wpi_getradiocaps(struct ieee80211com *ic,
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int maxchans, int *nchans, struct ieee80211_channel chans[])
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{
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struct wpi_softc *sc = ic->ic_softc;
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int i;
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/* Parse the list of authorized channels. */
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for (i = 0; i < WPI_CHAN_BANDS_COUNT && *nchans < maxchans; i++)
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wpi_read_eeprom_band(sc, i, maxchans, nchans, chans);
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}
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/*
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* Enforce flags read from EEPROM.
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*/
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