/*
* Validate the chanspec for this locale, for 40MHZ we need to also check that the sidebands
* are valid 20MZH channels in this locale and they are also a legal HT combination
*/
static bool
wlc_valid_chanspec_ext(wlc_cm_info_t *wlc_cm, chanspec_t chspec, bool dualband)
{
struct wlc_info *wlc = wlc_cm->wlc;
u8 channel = CHSPEC_CHANNEL(chspec);
/* check the chanspec */
if (wf_chspec_malformed(chspec)) {
WL_ERROR("wl%d: malformed chanspec 0x%x\n",
wlc->pub->unit, chspec);
ASSERT(0);
return false;
}
if (CHANNEL_BANDUNIT(wlc_cm->wlc, channel) !=
CHSPEC_WLCBANDUNIT(chspec))
return false;
/* Check a 20Mhz channel */
if (CHSPEC_IS20(chspec)) {
if (dualband)
return VALID_CHANNEL20_DB(wlc_cm->wlc, channel);
else
return VALID_CHANNEL20(wlc_cm->wlc, channel);
}
#ifdef SUPPORT_40MHZ
/* We know we are now checking a 40MHZ channel, so we should only be here
* for NPHYS
*/
if (WLCISNPHY(wlc->band) || WLCISSSLPNPHY(wlc->band)) {
u8 upper_sideband = 0, idx;
u8 num_ch20_entries =
sizeof(chan20_info) / sizeof(struct chan20_info);
if (!VALID_40CHANSPEC_IN_BAND(wlc, CHSPEC_WLCBANDUNIT(chspec)))
return false;
if (dualband) {
if (!VALID_CHANNEL20_DB(wlc, LOWER_20_SB(channel)) ||
!VALID_CHANNEL20_DB(wlc, UPPER_20_SB(channel)))
return false;
} else {
if (!VALID_CHANNEL20(wlc, LOWER_20_SB(channel)) ||
!VALID_CHANNEL20(wlc, UPPER_20_SB(channel)))
return false;
}
/* find the lower sideband info in the sideband array */
for (idx = 0; idx < num_ch20_entries; idx++) {
if (chan20_info[idx].sb == LOWER_20_SB(channel))
upper_sideband = chan20_info[idx].adj_sbs;
}
/* check that the lower sideband allows an upper sideband */
if ((upper_sideband & (CH_UPPER_SB | CH_EWA_VALID)) ==
(CH_UPPER_SB | CH_EWA_VALID))
return true;
return false;
}
#endif /* 40 MHZ */
return false;
}
/*
* Validate the chanspec for this locale, for 40MHZ we need to also
* check that the sidebands are valid 20MZH channels in this locale
* and they are also a legal HT combination
*/
static bool
brcms_c_valid_chanspec_ext(struct brcms_cm_info *wlc_cm, u16 chspec,
bool dualband)
{
struct brcms_c_info *wlc = wlc_cm->wlc;
u8 channel = CHSPEC_CHANNEL(chspec);
/* check the chanspec */
if (brcms_c_chspec_malformed(chspec)) {
wiphy_err(wlc->wiphy, "wl%d: malformed chanspec 0x%x\n",
wlc->pub->unit, chspec);
return false;
}
if (CHANNEL_BANDUNIT(wlc_cm->wlc, channel) !=
chspec_bandunit(chspec))
return false;
/* Check a 20Mhz channel */
if (CHSPEC_IS20(chspec)) {
if (dualband)
return brcms_c_valid_channel20_db(wlc_cm->wlc->cmi,
channel);
else
return brcms_c_valid_channel20(wlc_cm->wlc->cmi,
channel);
}
#ifdef SUPPORT_40MHZ
/*
* We know we are now checking a 40MHZ channel, so we should
* only be here for NPHYS
*/
if (BRCMS_ISNPHY(wlc->band) || BRCMS_ISSSLPNPHY(wlc->band)) {
u8 upper_sideband = 0, idx;
u8 num_ch20_entries =
sizeof(chan20_info) / sizeof(struct chan20_info);
if (!VALID_40CHANSPEC_IN_BAND(wlc, chspec_bandunit(chspec)))
return false;
if (dualband) {
if (!brcms_c_valid_channel20_db(wlc->cmi,
lower_20_sb(channel)) ||
!brcms_c_valid_channel20_db(wlc->cmi,
upper_20_sb(channel)))
return false;
} else {
if (!brcms_c_valid_channel20(wlc->cmi,
lower_20_sb(channel)) ||
!brcms_c_valid_channel20(wlc->cmi,
upper_20_sb(channel)))
return false;
}
/* find the lower sideband info in the sideband array */
for (idx = 0; idx < num_ch20_entries; idx++) {
if (chan20_info[idx].sb == lower_20_sb(channel))
upper_sideband = chan20_info[idx].adj_sbs;
}
/* check that the lower sideband allows an upper sideband */
if ((upper_sideband & (CH_UPPER_SB | CH_EWA_VALID)) ==
(CH_UPPER_SB | CH_EWA_VALID))
return true;
return false;
}
#endif /* 40 MHZ */
return false;
}
