struct ieee80211_regdomain *
iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
int num_of_ch, __le32 *channels, u16 fw_mcc)
{
int ch_idx;
u16 ch_flags, prev_ch_flags = 0;
const u8 *nvm_chan = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
iwl_nvm_channels_family_8000 : iwl_nvm_channels;
struct ieee80211_regdomain *regd;
int size_of_regd;
struct ieee80211_reg_rule *rule;
enum nl80211_band band;
int center_freq, prev_center_freq = 0;
int valid_rules = 0;
bool new_rule;
int max_num_ch = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
IWL_NUM_CHANNELS_FAMILY_8000 : IWL_NUM_CHANNELS;
if (WARN_ON_ONCE(num_of_ch > NL80211_MAX_SUPP_REG_RULES))
return ERR_PTR(-EINVAL);
if (WARN_ON(num_of_ch > max_num_ch))
num_of_ch = max_num_ch;
IWL_DEBUG_DEV(dev, IWL_DL_LAR, "building regdom for %d channels\n",
num_of_ch);
/* build a regdomain rule for every valid channel */
size_of_regd =
sizeof(struct ieee80211_regdomain) +
num_of_ch * sizeof(struct ieee80211_reg_rule);
regd = kzalloc(size_of_regd, GFP_KERNEL);
if (!regd)
return ERR_PTR(-ENOMEM);
for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
ch_flags = (u16)__le32_to_cpup(channels + ch_idx);
band = (ch_idx < NUM_2GHZ_CHANNELS) ?
NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
center_freq = ieee80211_channel_to_frequency(nvm_chan[ch_idx],
band);
new_rule = false;
if (!(ch_flags & NVM_CHANNEL_VALID)) {
IWL_DEBUG_DEV(dev, IWL_DL_LAR,
"Ch. %d Flags %x [%sGHz] - No traffic\n",
nvm_chan[ch_idx],
ch_flags,
(ch_idx >= NUM_2GHZ_CHANNELS) ?
"5.2" : "2.4");
continue;
}
/* we can't continue the same rule */
if (ch_idx == 0 || prev_ch_flags != ch_flags ||
center_freq - prev_center_freq > 20) {
valid_rules++;
new_rule = true;
}
rule = ®d->reg_rules[valid_rules - 1];
if (new_rule)
rule->freq_range.start_freq_khz =
MHZ_TO_KHZ(center_freq - 10);
rule->freq_range.end_freq_khz = MHZ_TO_KHZ(center_freq + 10);
/* this doesn't matter - not used by FW */
rule->power_rule.max_antenna_gain = DBI_TO_MBI(6);
rule->power_rule.max_eirp =
DBM_TO_MBM(IWL_DEFAULT_MAX_TX_POWER);
rule->flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
ch_flags, cfg);
/* rely on auto-calculation to merge BW of contiguous chans */
rule->flags |= NL80211_RRF_AUTO_BW;
rule->freq_range.max_bandwidth_khz = 0;
prev_ch_flags = ch_flags;
prev_center_freq = center_freq;
IWL_DEBUG_DEV(dev, IWL_DL_LAR,
"Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s(0x%02x): Ad-Hoc %ssupported\n",
center_freq,
band == NL80211_BAND_5GHZ ? "5.2" : "2.4",
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(WIDE),
CHECK_AND_PRINT_I(40MHZ),
CHECK_AND_PRINT_I(80MHZ),
CHECK_AND_PRINT_I(160MHZ),
CHECK_AND_PRINT_I(INDOOR_ONLY),
CHECK_AND_PRINT_I(GO_CONCURRENT),
ch_flags,
((ch_flags & NVM_CHANNEL_ACTIVE) &&
!(ch_flags & NVM_CHANNEL_RADAR))
? "" : "not ");
}
regd->n_reg_rules = valid_rules;
/* set alpha2 from FW. */
regd->alpha2[0] = fw_mcc >> 8;
regd->alpha2[1] = fw_mcc & 0xff;
return regd;
}
static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
const __le16 * const nvm_ch_flags,
bool lar_supported)
{
int ch_idx;
int n_channels = 0;
struct ieee80211_channel *channel;
u16 ch_flags;
bool is_5ghz;
int num_of_ch, num_2ghz_channels;
const u8 *nvm_chan;
if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
num_of_ch = IWL_NUM_CHANNELS;
nvm_chan = &iwl_nvm_channels[0];
num_2ghz_channels = NUM_2GHZ_CHANNELS;
} else {
num_of_ch = IWL_NUM_CHANNELS_FAMILY_8000;
nvm_chan = &iwl_nvm_channels_family_8000[0];
num_2ghz_channels = NUM_2GHZ_CHANNELS_FAMILY_8000;
}
for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
if (ch_idx >= num_2ghz_channels &&
!data->sku_cap_band_52GHz_enable)
continue;
if (ch_flags & NVM_CHANNEL_160MHZ)
data->vht160_supported = true;
if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
/*
* Channels might become valid later if lar is
* supported, hence we still want to add them to
* the list of supported channels to cfg80211.
*/
IWL_DEBUG_EEPROM(dev,
"Ch. %d Flags %x [%sGHz] - No traffic\n",
nvm_chan[ch_idx],
ch_flags,
(ch_idx >= num_2ghz_channels) ?
"5.2" : "2.4");
continue;
}
channel = &data->channels[n_channels];
n_channels++;
channel->hw_value = nvm_chan[ch_idx];
channel->band = (ch_idx < num_2ghz_channels) ?
NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
channel->center_freq =
ieee80211_channel_to_frequency(
channel->hw_value, channel->band);
/* Initialize regulatory-based run-time data */
/*
* Default value - highest tx power value. max_power
* is not used in mvm, and is used for backwards compatibility
*/
channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
is_5ghz = channel->band == NL80211_BAND_5GHZ;
/* don't put limitations in case we're using LAR */
if (!lar_supported)
channel->flags = iwl_get_channel_flags(nvm_chan[ch_idx],
ch_idx, is_5ghz,
ch_flags, cfg);
else
channel->flags = 0;
IWL_DEBUG_EEPROM(dev,
"Ch. %d [%sGHz] flags 0x%x %s%s%s%s%s%s%s%s%s%s(%ddBm): Ad-Hoc %ssupported\n",
channel->hw_value,
is_5ghz ? "5.2" : "2.4",
ch_flags,
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(IBSS),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(INDOOR_ONLY),
CHECK_AND_PRINT_I(GO_CONCURRENT),
CHECK_AND_PRINT_I(WIDE),
CHECK_AND_PRINT_I(40MHZ),
CHECK_AND_PRINT_I(80MHZ),
CHECK_AND_PRINT_I(160MHZ),
channel->max_power,
((ch_flags & NVM_CHANNEL_IBSS) &&
!(ch_flags & NVM_CHANNEL_RADAR))
? "" : "not ");
}
return n_channels;
}
/**
* iwl_init_channel_map - Set up driver's info for all possible channels
*/
int iwl_init_channel_map(struct iwl_priv *priv)
{
int eeprom_ch_count = 0;
const u8 *eeprom_ch_index = NULL;
const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
int band, ch;
struct iwl_channel_info *ch_info;
if (priv->channel_count) {
IWL_DEBUG_INFO(priv, "Channel map already initialized.\n");
return 0;
}
IWL_DEBUG_INFO(priv, "Initializing regulatory info from EEPROM\n");
priv->channel_count =
ARRAY_SIZE(iwl_eeprom_band_1) +
ARRAY_SIZE(iwl_eeprom_band_2) +
ARRAY_SIZE(iwl_eeprom_band_3) +
ARRAY_SIZE(iwl_eeprom_band_4) +
ARRAY_SIZE(iwl_eeprom_band_5);
IWL_DEBUG_INFO(priv, "Parsing data for %d channels.\n", priv->channel_count);
priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
priv->channel_count, GFP_KERNEL);
if (!priv->channel_info) {
IWL_ERR(priv, "Could not allocate channel_info\n");
priv->channel_count = 0;
return -ENOMEM;
}
ch_info = priv->channel_info;
/* Loop through the 5 EEPROM bands adding them in order to the
* channel map we maintain (that contains additional information than
* what just in the EEPROM) */
for (band = 1; band <= 5; band++) {
iwl_init_band_reference(priv, band, &eeprom_ch_count,
&eeprom_ch_info, &eeprom_ch_index);
/* Loop through each band adding each of the channels */
for (ch = 0; ch < eeprom_ch_count; ch++) {
ch_info->channel = eeprom_ch_index[ch];
ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
IEEE80211_BAND_5GHZ;
/* permanently store EEPROM's channel regulatory flags
* and max power in channel info database. */
ch_info->eeprom = eeprom_ch_info[ch];
/* Copy the run-time flags so they are there even on
* invalid channels */
ch_info->flags = eeprom_ch_info[ch].flags;
/* First write that fat is not enabled, and then enable
* one by one */
ch_info->fat_extension_channel =
(IEEE80211_CHAN_NO_HT40PLUS |
IEEE80211_CHAN_NO_HT40MINUS);
if (!(is_channel_valid(ch_info))) {
IWL_DEBUG_INFO(priv, "Ch. %d Flags %x [%sGHz] - "
"No traffic\n",
ch_info->channel,
ch_info->flags,
is_channel_a_band(ch_info) ?
"5.2" : "2.4");
ch_info++;
continue;
}
/* Initialize regulatory-based run-time data */
ch_info->max_power_avg = ch_info->curr_txpow =
eeprom_ch_info[ch].max_power_avg;
ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
ch_info->min_power = 0;
IWL_DEBUG_INFO(priv, "Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm):"
" Ad-Hoc %ssupported\n",
ch_info->channel,
is_channel_a_band(ch_info) ?
"5.2" : "2.4",
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(IBSS),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(WIDE),
CHECK_AND_PRINT_I(DFS),
eeprom_ch_info[ch].flags,
eeprom_ch_info[ch].max_power_avg,
((eeprom_ch_info[ch].
flags & EEPROM_CHANNEL_IBSS)
&& !(eeprom_ch_info[ch].
flags & EEPROM_CHANNEL_RADAR))
? "" : "not ");
/* Set the tx_power_user_lmt to the highest power
* supported by any channel */
if (eeprom_ch_info[ch].max_power_avg >
priv->tx_power_user_lmt)
priv->tx_power_user_lmt =
eeprom_ch_info[ch].max_power_avg;
ch_info++;
}
}
/* Check if we do have FAT channels */
if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] ==
EEPROM_REGULATORY_BAND_NO_FAT &&
priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] ==
EEPROM_REGULATORY_BAND_NO_FAT)
return 0;
/* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
for (band = 6; band <= 7; band++) {
enum ieee80211_band ieeeband;
u8 fat_extension_chan;
iwl_init_band_reference(priv, band, &eeprom_ch_count,
&eeprom_ch_info, &eeprom_ch_index);
/* EEPROM band 6 is 2.4, band 7 is 5 GHz */
ieeeband =
(band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
/* Loop through each band adding each of the channels */
for (ch = 0; ch < eeprom_ch_count; ch++) {
if ((band == 6) &&
((eeprom_ch_index[ch] == 5) ||
(eeprom_ch_index[ch] == 6) ||
(eeprom_ch_index[ch] == 7)))
/* both are allowed: above and below */
fat_extension_chan = 0;
else
fat_extension_chan =
IEEE80211_CHAN_NO_HT40MINUS;
/* Set up driver's info for lower half */
iwl_set_fat_chan_info(priv, ieeeband,
eeprom_ch_index[ch],
&(eeprom_ch_info[ch]),
fat_extension_chan);
/* Set up driver's info for upper half */
iwl_set_fat_chan_info(priv, ieeeband,
(eeprom_ch_index[ch] + 4),
&(eeprom_ch_info[ch]),
IEEE80211_CHAN_NO_HT40PLUS);
}
}
return 0;
}
static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
const __le16 * const nvm_ch_flags)
{
int ch_idx;
int n_channels = 0;
struct ieee80211_channel *channel;
u16 ch_flags;
bool is_5ghz;
int num_of_ch, num_2ghz_channels;
const u8 *nvm_chan;
if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
num_of_ch = IWL_NUM_CHANNELS;
nvm_chan = &iwl_nvm_channels[0];
num_2ghz_channels = NUM_2GHZ_CHANNELS;
} else {
num_of_ch = IWL_NUM_CHANNELS_FAMILY_8000;
nvm_chan = &iwl_nvm_channels_family_8000[0];
num_2ghz_channels = NUM_2GHZ_CHANNELS_FAMILY_8000;
}
for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
if (ch_idx >= num_2ghz_channels &&
!data->sku_cap_band_52GHz_enable)
ch_flags &= ~NVM_CHANNEL_VALID;
if (!(ch_flags & NVM_CHANNEL_VALID)) {
IWL_DEBUG_EEPROM(dev,
"Ch. %d Flags %x [%sGHz] - No traffic\n",
nvm_chan[ch_idx],
ch_flags,
(ch_idx >= num_2ghz_channels) ?
"5.2" : "2.4");
continue;
}
channel = &data->channels[n_channels];
n_channels++;
channel->hw_value = nvm_chan[ch_idx];
channel->band = (ch_idx < num_2ghz_channels) ?
IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
channel->center_freq =
ieee80211_channel_to_frequency(
channel->hw_value, channel->band);
/* TODO: Need to be dependent to the NVM */
channel->flags = IEEE80211_CHAN_NO_HT40;
if (ch_idx < num_2ghz_channels &&
(ch_flags & NVM_CHANNEL_40MHZ)) {
if (nvm_chan[ch_idx] <= LAST_2GHZ_HT_PLUS)
channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS)
channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
} else if (nvm_chan[ch_idx] <= LAST_5GHZ_HT &&
(ch_flags & NVM_CHANNEL_40MHZ)) {
if ((ch_idx - num_2ghz_channels) % 2 == 0)
channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
else
channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
}
if (!(ch_flags & NVM_CHANNEL_80MHZ))
channel->flags |= IEEE80211_CHAN_NO_80MHZ;
if (!(ch_flags & NVM_CHANNEL_160MHZ))
channel->flags |= IEEE80211_CHAN_NO_160MHZ;
if (!(ch_flags & NVM_CHANNEL_IBSS))
channel->flags |= IEEE80211_CHAN_NO_IR;
if (!(ch_flags & NVM_CHANNEL_ACTIVE))
channel->flags |= IEEE80211_CHAN_NO_IR;
if (ch_flags & NVM_CHANNEL_RADAR)
channel->flags |= IEEE80211_CHAN_RADAR;
/* Initialize regulatory-based run-time data */
/*
* Default value - highest tx power value. max_power
* is not used in mvm, and is used for backwards compatibility
*/
channel->max_power = DEFAULT_MAX_TX_POWER;
is_5ghz = channel->band == IEEE80211_BAND_5GHZ;
IWL_DEBUG_EEPROM(dev,
"Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",
channel->hw_value,
is_5ghz ? "5.2" : "2.4",
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(IBSS),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(WIDE),
CHECK_AND_PRINT_I(DFS),
ch_flags,
channel->max_power,
((ch_flags & NVM_CHANNEL_IBSS) &&
!(ch_flags & NVM_CHANNEL_RADAR))
? "" : "not ");
}
return n_channels;
}
static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
const __le16 * const nvm_ch_flags)
{
int ch_idx;
int n_channels = 0;
struct ieee80211_channel *channel;
u16 ch_flags;
bool is_5ghz;
for (ch_idx = 0; ch_idx < IWL_NUM_CHANNELS; ch_idx++) {
ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
if (!(ch_flags & NVM_CHANNEL_VALID)) {
IWL_DEBUG_EEPROM(dev,
"Ch. %d Flags %x [%sGHz] - No traffic\n",
iwl_nvm_channels[ch_idx],
ch_flags,
(ch_idx >= NUM_2GHZ_CHANNELS) ?
"5.2" : "2.4");
continue;
}
channel = &data->channels[n_channels];
n_channels++;
channel->hw_value = iwl_nvm_channels[ch_idx];
channel->band = (ch_idx < NUM_2GHZ_CHANNELS) ?
IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
channel->center_freq =
ieee80211_channel_to_frequency(
channel->hw_value, channel->band);
/* TODO: Need to be dependent to the NVM */
channel->flags = IEEE80211_CHAN_NO_HT40;
if (ch_idx < NUM_2GHZ_CHANNELS &&
(ch_flags & NVM_CHANNEL_40MHZ)) {
if (iwl_nvm_channels[ch_idx] <= LAST_2GHZ_HT_PLUS)
channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
if (iwl_nvm_channels[ch_idx] >= FIRST_2GHZ_HT_MINUS)
channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
} else if (iwl_nvm_channels[ch_idx] <= LAST_5GHZ_HT &&
(ch_flags & NVM_CHANNEL_40MHZ)) {
if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
else
channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
}
if (!(ch_flags & NVM_CHANNEL_80MHZ))
channel->flags |= IEEE80211_CHAN_NO_80MHZ;
if (!(ch_flags & NVM_CHANNEL_160MHZ))
channel->flags |= IEEE80211_CHAN_NO_160MHZ;
if (!(ch_flags & NVM_CHANNEL_IBSS))
channel->flags |= IEEE80211_CHAN_NO_IBSS;
if (!(ch_flags & NVM_CHANNEL_ACTIVE))
channel->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
if (ch_flags & NVM_CHANNEL_RADAR)
channel->flags |= IEEE80211_CHAN_RADAR;
/* Initialize regulatory-based run-time data */
/* TODO: read the real value from the NVM */
channel->max_power = 0;
is_5ghz = channel->band == IEEE80211_BAND_5GHZ;
IWL_DEBUG_EEPROM(dev,
"Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",
channel->hw_value,
is_5ghz ? "5.2" : "2.4",
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(IBSS),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(WIDE),
CHECK_AND_PRINT_I(DFS),
ch_flags,
channel->max_power,
((ch_flags & NVM_CHANNEL_IBSS) &&
!(ch_flags & NVM_CHANNEL_RADAR))
? "" : "not ");
}
return n_channels;
}
static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
int chan, u32 flags)
{
#define CHECK_AND_PRINT_I(x) \
((flags & NVM_CHANNEL_##x) ? " " #x : "")
if (!(flags & NVM_CHANNEL_VALID)) {
IWL_DEBUG_DEV(dev, level, "Ch. %d: 0x%x: No traffic\n",
chan, flags);
return;
}
/* Note: already can print up to 101 characters, 110 is the limit! */
IWL_DEBUG_DEV(dev, level,
"Ch. %d: 0x%x:%s%s%s%s%s%s%s%s%s%s%s%s\n",
chan, flags,
CHECK_AND_PRINT_I(VALID),
CHECK_AND_PRINT_I(IBSS),
CHECK_AND_PRINT_I(ACTIVE),
CHECK_AND_PRINT_I(RADAR),
CHECK_AND_PRINT_I(INDOOR_ONLY),
CHECK_AND_PRINT_I(GO_CONCURRENT),
CHECK_AND_PRINT_I(UNIFORM),
CHECK_AND_PRINT_I(20MHZ),
CHECK_AND_PRINT_I(40MHZ),
CHECK_AND_PRINT_I(80MHZ),
CHECK_AND_PRINT_I(160MHZ),
CHECK_AND_PRINT_I(DC_HIGH));
#undef CHECK_AND_PRINT_I
}
