* one for "active", and one for "search".
*/
struct iwl4965_scale_tbl_info {
- enum iwl4965_table_type lq_type;
- enum iwl4965_antenna_type antenna_type;
+ enum iwl_table_type lq_type;
+ u8 ant_type;
u8 is_SGI; /* 1 = short guard interval */
u8 is_fat; /* 1 = 40 MHz channel width */
u8 is_dup; /* 1 = duplicated data streams */
u32 supp_rates;
u16 active_rate;
u16 active_siso_rate;
- u16 active_mimo_rate;
+ u16 active_mimo2_rate;
+ u16 active_mimo3_rate;
u16 active_rate_basic;
struct iwl_link_quality_cmd lq;
struct net_device *dev,
struct ieee80211_hdr *hdr,
struct sta_info *sta);
-static void rs_fill_link_cmd(struct iwl4965_lq_sta *lq_sta,
+static void rs_fill_link_cmd(const struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_sta,
struct iwl4965_rate *tx_mcs,
struct iwl_link_quality_cmd *tbl);
* 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits
* "G" is the only table that supports CCK (the first 4 rates).
*/
+/*FIXME:RS:need to spearate tables for MIMO2/MIMO3*/
static s32 expected_tpt_A[IWL_RATE_COUNT] = {
0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186, 186
};
#endif /* CONFIG_IWLWIFI_HT */
+static inline int get_num_of_ant_from_mcs(u32 mcs)
+{
+ return (!!(mcs & RATE_MCS_ANT_A_MSK) +
+ !!(mcs & RATE_MCS_ANT_B_MSK) +
+ !!(mcs & RATE_MCS_ANT_C_MSK));
+}
+
/**
* rs_collect_tx_data - Update the success/failure sliding window
*
if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
mcs_rate->rate_n_flags |= RATE_MCS_CCK_MSK;
- } else if (is_siso(tbl->lq_type)) {
- if (index > IWL_LAST_OFDM_RATE)
+ } else if (is_Ht(tbl->lq_type)) {
+ if (index > IWL_LAST_OFDM_RATE) {
+ IWL_ERROR("invalid HT rate index %d\n", index);
index = IWL_LAST_OFDM_RATE;
- mcs_rate->rate_n_flags = iwl4965_rates[index].plcp_siso |
- RATE_MCS_HT_MSK;
+ }
+ mcs_rate->rate_n_flags = RATE_MCS_HT_MSK;
+
+ if (is_siso(tbl->lq_type))
+ mcs_rate->rate_n_flags |=
+ iwl4965_rates[index].plcp_siso;
+ else if (is_mimo2(tbl->lq_type))
+ mcs_rate->rate_n_flags |=
+ iwl4965_rates[index].plcp_mimo2;
+ else
+ mcs_rate->rate_n_flags |=
+ iwl4965_rates[index].plcp_mimo3;
} else {
- if (index > IWL_LAST_OFDM_RATE)
- index = IWL_LAST_OFDM_RATE;
- mcs_rate->rate_n_flags = iwl4965_rates[index].plcp_mimo |
- RATE_MCS_HT_MSK;
+ IWL_ERROR("Invalid tbl->lq_type %d\n", tbl->lq_type);
}
- switch (tbl->antenna_type) {
- case ANT_BOTH:
- mcs_rate->rate_n_flags |= RATE_MCS_ANT_AB_MSK;
- break;
- case ANT_MAIN:
- mcs_rate->rate_n_flags |= RATE_MCS_ANT_A_MSK;
- break;
- case ANT_AUX:
- mcs_rate->rate_n_flags |= RATE_MCS_ANT_B_MSK;
- break;
- case ANT_NONE:
- break;
- }
+ mcs_rate->rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) &
+ RATE_MCS_ANT_ABC_MSK);
if (is_legacy(tbl->lq_type))
return;
struct iwl4965_scale_tbl_info *tbl,
int *rate_idx)
{
- int index;
- u32 ant_msk;
+ u32 ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_ABC_MSK);
+ u8 num_of_ant = get_num_of_ant_from_mcs(ant_msk);
- index = iwl4965_hwrate_to_plcp_idx(mcs_rate->rate_n_flags);
+ *rate_idx = iwl4965_hwrate_to_plcp_idx(mcs_rate->rate_n_flags);
- if (index == IWL_RATE_INVALID) {
+ if (*rate_idx == IWL_RATE_INVALID) {
*rate_idx = -1;
return -EINVAL;
}
tbl->is_SGI = 0; /* default legacy setup */
tbl->is_fat = 0;
tbl->is_dup = 0;
- tbl->antenna_type = ANT_BOTH; /* default MIMO setup */
+ tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
+ tbl->lq_type = LQ_NONE;
/* legacy rate format */
if (!(mcs_rate->rate_n_flags & RATE_MCS_HT_MSK)) {
- ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_AB_MSK);
-
- if (ant_msk == RATE_MCS_ANT_AB_MSK)
- tbl->lq_type = LQ_NONE;
- else {
-
+ if (num_of_ant == 1) {
if (band == IEEE80211_BAND_5GHZ)
tbl->lq_type = LQ_A;
else
tbl->lq_type = LQ_G;
-
- if (mcs_rate->rate_n_flags & RATE_MCS_ANT_A_MSK)
- tbl->antenna_type = ANT_MAIN;
- else
- tbl->antenna_type = ANT_AUX;
- }
- *rate_idx = index;
-
- /* HT rate format, SISO (might be 20 MHz legacy or 40 MHz fat width) */
- } else if (iwl4965_rate_get_rate(mcs_rate->rate_n_flags)
- <= IWL_RATE_SISO_60M_PLCP) {
- tbl->lq_type = LQ_SISO;
-
- ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_AB_MSK);
- if (ant_msk == RATE_MCS_ANT_AB_MSK)
- tbl->lq_type = LQ_NONE;
- else {
- if (mcs_rate->rate_n_flags & RATE_MCS_ANT_A_MSK)
- tbl->antenna_type = ANT_MAIN;
- else
- tbl->antenna_type = ANT_AUX;
}
- if (mcs_rate->rate_n_flags & RATE_MCS_SGI_MSK)
- tbl->is_SGI = 1;
-
- if ((mcs_rate->rate_n_flags & RATE_MCS_FAT_MSK) ||
- (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK))
- tbl->is_fat = 1;
-
- if (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK)
- tbl->is_dup = 1;
-
- *rate_idx = index;
-
- /* HT rate format, MIMO (might be 20 MHz legacy or 40 MHz fat width) */
+ /* HT rate format */
} else {
- tbl->lq_type = LQ_MIMO;
if (mcs_rate->rate_n_flags & RATE_MCS_SGI_MSK)
tbl->is_SGI = 1;
if (mcs_rate->rate_n_flags & RATE_MCS_DUP_MSK)
tbl->is_dup = 1;
- *rate_idx = index;
+
+ /* SISO */
+ if (iwl4965_rate_get_rate(mcs_rate->rate_n_flags)
+ <= IWL_RATE_SISO_60M_PLCP) {
+
+ if (num_of_ant == 1)
+ tbl->lq_type = LQ_SISO; /*else NONE*/
+ /* MIMO2 */
+ } else if (iwl4965_rate_get_rate(mcs_rate->rate_n_flags)
+ <= IWL_RATE_MIMO2_60M_PLCP) {
+ if (num_of_ant == 2)
+ tbl->lq_type = LQ_MIMO2;
+ /* MIMO3 */
+ } else {
+ if (num_of_ant == 3)
+ tbl->lq_type = LQ_MIMO3;
+ }
}
return 0;
}
-
+/* FIXME:RS: need to toggle also ANT_C, and also AB,AC,BC */
static inline void rs_toggle_antenna(struct iwl4965_rate *new_rate,
struct iwl4965_scale_tbl_info *tbl)
{
- if (tbl->antenna_type == ANT_AUX) {
- tbl->antenna_type = ANT_MAIN;
- new_rate->rate_n_flags &= ~RATE_MCS_ANT_B_MSK;
- new_rate->rate_n_flags |= RATE_MCS_ANT_A_MSK;
- } else {
- tbl->antenna_type = ANT_AUX;
- new_rate->rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
- new_rate->rate_n_flags |= RATE_MCS_ANT_B_MSK;
- }
+ tbl->ant_type ^= ANT_AB;
+ new_rate->rate_n_flags ^= (RATE_MCS_ANT_A_MSK|RATE_MCS_ANT_B_MSK);
}
static inline u8 rs_use_green(struct iwl_priv *priv,
*/
static void rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
struct ieee80211_hdr *hdr,
- enum iwl4965_table_type rate_type,
+ enum iwl_table_type rate_type,
u16 *data_rate)
{
if (is_legacy(rate_type))
else {
if (is_siso(rate_type))
*data_rate = lq_sta->active_siso_rate;
+ else if (is_mimo2(rate_type))
+ *data_rate = lq_sta->active_mimo2_rate;
else
- *data_rate = lq_sta->active_mimo_rate;
+ *data_rate = lq_sta->active_mimo3_rate;
}
if (hdr && is_multicast_ether_addr(hdr->addr1) &&
else
tbl->lq_type = LQ_G;
- if ((tbl->antenna_type == ANT_BOTH) ||
- (tbl->antenna_type == ANT_NONE))
- tbl->antenna_type = ANT_MAIN;
+ if (num_of_ant(tbl->ant_type > 1))
+ tbl->ant_type = ANT_A;/*FIXME:RS*/
tbl->is_fat = 0;
tbl->is_SGI = 0;
table = &lq_sta->lq;
active_index = lq_sta->active_tbl;
- /* Get mac80211 antenna info */
- lq_sta->antenna =
- (lq_sta->valid_antenna & local->hw.conf.antenna_sel_tx);
- if (!lq_sta->antenna)
- lq_sta->antenna = lq_sta->valid_antenna;
-
- /* Ignore mac80211 antenna info for now */
lq_sta->antenna = lq_sta->valid_antenna;
curr_tbl = &(lq_sta->lq_info[active_index]);
!!(tx_resp->control.flags & IEEE80211_TXCTL_40_MHZ_WIDTH)) ||
(tbl_type.is_dup ^
!!(tx_resp->control.flags & IEEE80211_TXCTL_DUP_DATA)) ||
- (tbl_type.antenna_type ^
- tx_resp->control.antenna_sel_tx) ||
+ (tbl_type.ant_type ^ tx_resp->control.antenna_sel_tx) ||
(!!(tx_mcs.rate_n_flags & RATE_MCS_HT_MSK) ^
!!(tx_resp->control.flags & IEEE80211_TXCTL_OFDM_HT)) ||
(!!(tx_mcs.rate_n_flags & RATE_MCS_GF_MSK) ^
/* If type matches "search" table,
* add failure to "search" history */
if ((tbl_type.lq_type == search_tbl->lq_type) &&
- (tbl_type.antenna_type == search_tbl->antenna_type) &&
+ (tbl_type.ant_type == search_tbl->ant_type) &&
(tbl_type.is_SGI == search_tbl->is_SGI)) {
if (search_tbl->expected_tpt)
tpt = search_tbl->expected_tpt[rs_index];
/* Else if type matches "current/active" table,
* add failure to "current/active" history */
} else if ((tbl_type.lq_type == curr_tbl->lq_type) &&
- (tbl_type.antenna_type == curr_tbl->antenna_type) &&
+ (tbl_type.ant_type == curr_tbl->ant_type) &&
(tbl_type.is_SGI == curr_tbl->is_SGI)) {
if (curr_tbl->expected_tpt)
tpt = curr_tbl->expected_tpt[rs_index];
/* If type matches "search" table,
* add final tx status to "search" history */
if ((tbl_type.lq_type == search_tbl->lq_type) &&
- (tbl_type.antenna_type == search_tbl->antenna_type) &&
+ (tbl_type.ant_type == search_tbl->ant_type) &&
(tbl_type.is_SGI == search_tbl->is_SGI)) {
if (search_tbl->expected_tpt)
tpt = search_tbl->expected_tpt[rs_index];
/* Else if type matches "current/active" table,
* add final tx status to "current/active" history */
} else if ((tbl_type.lq_type == curr_tbl->lq_type) &&
- (tbl_type.antenna_type == curr_tbl->antenna_type) &&
+ (tbl_type.ant_type == curr_tbl->ant_type) &&
(tbl_type.is_SGI == curr_tbl->is_SGI)) {
if (curr_tbl->expected_tpt)
tpt = curr_tbl->expected_tpt[rs_index];
return;
}
-static u8 rs_is_ant_connected(u8 valid_antenna,
- enum iwl4965_antenna_type antenna_type)
+static inline u8 rs_is_ant_connected(u8 valid_antenna, u8 ant_type)
{
- if (antenna_type == ANT_AUX)
- return ((valid_antenna & 0x2) ? 1:0);
- else if (antenna_type == ANT_MAIN)
- return ((valid_antenna & 0x1) ? 1:0);
- else if (antenna_type == ANT_BOTH)
- return ((valid_antenna & 0x3) == 0x3);
-
- return 1;
+ return ((ant_type & valid_antenna) == ant_type);
}
-static u8 rs_is_other_ant_connected(u8 valid_antenna,
- enum iwl4965_antenna_type antenna_type)
+/*FIXME:RS: this function should be replaced*/
+static u8 rs_is_other_ant_connected(u8 valid_antenna, u8 ant_type)
{
- if (antenna_type == ANT_AUX)
- return rs_is_ant_connected(valid_antenna, ANT_MAIN);
+ if (ant_type == ANT_B)
+ return rs_is_ant_connected(valid_antenna, ANT_A);
else
- return rs_is_ant_connected(valid_antenna, ANT_AUX);
+ return rs_is_ant_connected(valid_antenna, ANT_B);
return 0;
}
else
tbl->expected_tpt = expected_tpt_siso20MHz;
- } else if (is_mimo(tbl->lq_type)) {
+ } else if (is_mimo(tbl->lq_type)) { /* FIXME:need to separate mimo2/3 */
if (tbl->is_fat && !lq_sta->is_dup)
if (tbl->is_SGI)
tbl->expected_tpt = expected_tpt_mimo40MHzSGI;
}
#endif /* CONFIG_IWL4965_HT */
+/*FIXME:RS:this function should be replaced*/
static inline u8 rs_is_both_ant_supp(u8 valid_antenna)
{
- return (rs_is_ant_connected(valid_antenna, ANT_BOTH));
+ return (rs_is_ant_connected(valid_antenna, ANT_AB));
}
/*
* Set up search table for MIMO
*/
-static int rs_switch_to_mimo(struct iwl_priv *priv,
+#ifdef CONFIG_IWL4965_HT
+static int rs_switch_to_mimo2(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
struct sta_info *sta,
struct iwl4965_scale_tbl_info *tbl, int index)
{
-#ifdef CONFIG_IWL4965_HT
u16 rate_mask;
s32 rate;
s8 is_green = lq_sta->is_green;
return -1;
IWL_DEBUG_HT("LQ: try to switch to MIMO\n");
- tbl->lq_type = LQ_MIMO;
+ tbl->lq_type = LQ_MIMO2;
rs_get_supported_rates(lq_sta, NULL, tbl->lq_type,
&rate_mask);
return -1;
/* Need both Tx chains/antennas to support MIMO */
- if (!rs_is_both_ant_supp(lq_sta->antenna))
+ if (!rs_is_both_ant_supp(priv->hw_params.valid_tx_ant))
return -1;
tbl->is_dup = lq_sta->is_dup;
IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate.rate_n_flags, is_green);
return 0;
+}
#else
+static int rs_switch_to_mimo2(struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_sta,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
+ struct iwl4965_scale_tbl_info *tbl, int index)
+{
return -1;
-#endif /*CONFIG_IWL4965_HT */
}
+#endif /*CONFIG_IWL4965_HT */
/*
* Set up search table for SISO
struct sta_info *sta,
int index)
{
- int ret = 0;
struct iwl4965_scale_tbl_info *tbl =
&(lq_sta->lq_info[lq_sta->active_tbl]);
struct iwl4965_scale_tbl_info *search_tbl =
u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
(sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
+ u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+ int ret = 0;
for (; ;) {
switch (tbl->action) {
break;
/* Don't change antenna if other one is not connected */
- if (!rs_is_other_ant_connected(lq_sta->antenna,
- tbl->antenna_type))
+ if (!rs_is_other_ant_connected(valid_tx_ant,
+ tbl->ant_type))
break;
/* Set up search table to try other antenna */
}
break;
- case IWL_LEGACY_SWITCH_MIMO:
+ case IWL_LEGACY_SWITCH_MIMO2:
IWL_DEBUG_HT("LQ: Legacy switch MIMO\n");
/* Set up search table to try MIMO */
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_MIMO;
+ search_tbl->lq_type = LQ_MIMO2;
search_tbl->is_SGI = 0;
search_tbl->is_fat = 0;
- search_tbl->antenna_type = ANT_BOTH;
- ret = rs_switch_to_mimo(priv, lq_sta, conf, sta,
+ search_tbl->ant_type = ANT_AB;/*FIXME:RS*/
+ /*FIXME:RS:need to check ant validity*/
+ ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
search_tbl, index);
if (!ret) {
lq_sta->search_better_tbl = 1;
break;
}
tbl->action++;
- if (tbl->action > IWL_LEGACY_SWITCH_MIMO)
+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
tbl->action = IWL_LEGACY_SWITCH_ANTENNA;
if (tbl->action == start_action)
out:
tbl->action++;
- if (tbl->action > IWL_LEGACY_SWITCH_MIMO)
+ if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
tbl->action = IWL_LEGACY_SWITCH_ANTENNA;
return 0;
struct sta_info *sta,
int index)
{
- int ret;
u8 is_green = lq_sta->is_green;
struct iwl4965_scale_tbl_info *tbl =
&(lq_sta->lq_info[lq_sta->active_tbl]);
u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
(sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
+ u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
+ int ret;
for (;;) {
lq_sta->action_counter++;
search_tbl->lq_type = LQ_NONE;
if (window->success_ratio >= IWL_RS_GOOD_RATIO)
break;
- if (!rs_is_other_ant_connected(lq_sta->antenna,
- tbl->antenna_type))
+ if (!rs_is_other_ant_connected(valid_tx_ant,
+ tbl->ant_type))
break;
memcpy(search_tbl, tbl, sz);
- search_tbl->action = IWL_SISO_SWITCH_MIMO;
+ search_tbl->action = IWL_SISO_SWITCH_MIMO2;
rs_toggle_antenna(&(search_tbl->current_rate),
search_tbl);
lq_sta->search_better_tbl = 1;
goto out;
- case IWL_SISO_SWITCH_MIMO:
- IWL_DEBUG_HT("LQ: SISO SWITCH TO MIMO FROM SISO\n");
+ case IWL_SISO_SWITCH_MIMO2:
+ IWL_DEBUG_HT("LQ: SISO SWITCH TO MIMO2 FROM SISO\n");
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_MIMO;
+ search_tbl->lq_type = LQ_MIMO2;
search_tbl->is_SGI = 0;
search_tbl->is_fat = 0;
- search_tbl->antenna_type = ANT_BOTH;
- ret = rs_switch_to_mimo(priv, lq_sta, conf, sta,
+ search_tbl->ant_type = ANT_AB; /*FIXME:RS*/
+ ret = rs_switch_to_mimo2(priv, lq_sta, conf, sta,
search_tbl, index);
if (!ret) {
lq_sta->search_better_tbl = 1;
search_tbl->lq_type = LQ_SISO;
search_tbl->is_SGI = 0;
search_tbl->is_fat = 0;
+ /*FIXME:RS:need to check ant validity + C*/
if (tbl->action == IWL_MIMO_SWITCH_ANTENNA_A)
- search_tbl->antenna_type = ANT_MAIN;
+ search_tbl->ant_type = ANT_A;
else
- search_tbl->antenna_type = ANT_AUX;
+ search_tbl->ant_type = ANT_B;
ret = rs_switch_to_siso(priv, lq_sta, conf, sta,
search_tbl, index);
/* Set up new search table for MIMO */
memcpy(search_tbl, tbl, sz);
- search_tbl->lq_type = LQ_MIMO;
- search_tbl->antenna_type = ANT_BOTH;
search_tbl->action = 0;
if (search_tbl->is_SGI)
search_tbl->is_SGI = 0;
* and it's working well, there's no need to look
* for a better type of modulation!
*/
- if ((tbl->lq_type == LQ_MIMO) &&
+ if ((tbl->lq_type == LQ_MIMO2) &&
(tbl->is_SGI)) {
s32 tpt = lq_sta->last_tpt / 100;
if (((!tbl->is_fat) &&
/* Set up new rate table in uCode, if needed */
if (update_lq) {
rs_mcs_from_tbl(&mcs_rate, tbl, index, is_green);
- rs_fill_link_cmd(lq_sta, &mcs_rate, &lq_sta->lq);
+ rs_fill_link_cmd(priv, lq_sta, &mcs_rate, &lq_sta->lq);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
goto out;
/* Replace uCode's rate table for the destination station. */
if (update_lq) {
rs_mcs_from_tbl(&mcs_rate, tbl, index, is_green);
- rs_fill_link_cmd(lq_sta, &mcs_rate, &lq_sta->lq);
+ rs_fill_link_cmd(priv, lq_sta, &mcs_rate, &lq_sta->lq);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
IWL_DEBUG_HT("Switch current mcs: %X index: %d\n",
tbl->current_rate.rate_n_flags, index);
- rs_fill_link_cmd(lq_sta, &tbl->current_rate,
+ rs_fill_link_cmd(priv, lq_sta, &tbl->current_rate,
&lq_sta->lq);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
if ((i < 0) || (i >= IWL_RATE_COUNT))
i = 0;
+ /* FIXME:RS: This is also wrong in 4965 */
mcs_rate.rate_n_flags = iwl4965_rates[i].plcp ;
mcs_rate.rate_n_flags |= RATE_MCS_ANT_B_MSK;
mcs_rate.rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
if (i >= IWL_FIRST_CCK_RATE && i <= IWL_LAST_CCK_RATE)
mcs_rate.rate_n_flags |= RATE_MCS_CCK_MSK;
- tbl->antenna_type = ANT_AUX;
+ tbl->ant_type = ANT_B;
rs_get_tbl_info_from_mcs(&mcs_rate, priv->band, tbl, &rate_idx);
- if (!rs_is_ant_connected(priv->valid_antenna, tbl->antenna_type))
+ if (!rs_is_ant_connected(priv->hw_params.valid_tx_ant, tbl->ant_type))
rs_toggle_antenna(&mcs_rate, tbl);
rs_mcs_from_tbl(&mcs_rate, tbl, rate_idx, use_green);
tbl->current_rate.rate_n_flags = mcs_rate.rate_n_flags;
rs_get_expected_tpt_table(lq_sta, tbl);
- rs_fill_link_cmd(lq_sta, &mcs_rate, &lq_sta->lq);
+ rs_fill_link_cmd(NULL, lq_sta, &mcs_rate, &lq_sta->lq);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
out:
return;
sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
lq_sta->is_dup = 0;
- lq_sta->valid_antenna = priv->valid_antenna;
- lq_sta->antenna = priv->antenna;
lq_sta->is_green = rs_use_green(priv, conf);
lq_sta->active_rate = priv->active_rate;
lq_sta->active_rate &= ~(0x1000);
* active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
* supp_rates[] does not; shift to convert format, force 9 MBits off.
*/
- lq_sta->active_siso_rate = (priv->current_ht_config.supp_mcs_set[0] << 1);
+ lq_sta->active_siso_rate =
+ priv->current_ht_config.supp_mcs_set[0] << 1;
lq_sta->active_siso_rate |=
- (priv->current_ht_config.supp_mcs_set[0] & 0x1);
+ priv->current_ht_config.supp_mcs_set[0] & 0x1;
lq_sta->active_siso_rate &= ~((u16)0x2);
- lq_sta->active_siso_rate =
- lq_sta->active_siso_rate << IWL_FIRST_OFDM_RATE;
+ lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
/* Same here */
- lq_sta->active_mimo_rate = (priv->current_ht_config.supp_mcs_set[1] << 1);
- lq_sta->active_mimo_rate |=
- (priv->current_ht_config.supp_mcs_set[1] & 0x1);
- lq_sta->active_mimo_rate &= ~((u16)0x2);
- lq_sta->active_mimo_rate =
- lq_sta->active_mimo_rate << IWL_FIRST_OFDM_RATE;
- IWL_DEBUG_HT("SISO RATE 0x%X MIMO RATE 0x%X\n",
+ lq_sta->active_mimo2_rate =
+ priv->current_ht_config.supp_mcs_set[1] << 1;
+ lq_sta->active_mimo2_rate |=
+ priv->current_ht_config.supp_mcs_set[1] & 0x1;
+ lq_sta->active_mimo2_rate &= ~((u16)0x2);
+ lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
+
+ lq_sta->active_mimo3_rate =
+ priv->current_ht_config.supp_mcs_set[2] << 1;
+ lq_sta->active_mimo3_rate |=
+ priv->current_ht_config.supp_mcs_set[2] & 0x1;
+ lq_sta->active_mimo3_rate &= ~((u16)0x2);
+ lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
+
+ IWL_DEBUG_HT("SISO RATE %X MIMO2 RATE %X MIMO3 RATE %X\n",
lq_sta->active_siso_rate,
- lq_sta->active_mimo_rate);
+ lq_sta->active_mimo2_rate,
+ lq_sta->active_mimo3_rate);
+
/* as default allow aggregation for all tids */
lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
#endif /*CONFIG_IWL4965_HT*/
rs_initialize_lq(priv, conf, sta);
}
-static void rs_fill_link_cmd(struct iwl4965_lq_sta *lq_sta,
- struct iwl4965_rate *tx_mcs,
- struct iwl_link_quality_cmd *lq_cmd)
+static void rs_fill_link_cmd(const struct iwl_priv *priv,
+ struct iwl4965_lq_sta *lq_sta,
+ struct iwl4965_rate *tx_mcs,
+ struct iwl_link_quality_cmd *lq_cmd)
{
int index = 0;
int rate_idx;
cpu_to_le32(tx_mcs->rate_n_flags);
new_rate.rate_n_flags = tx_mcs->rate_n_flags;
- if (is_mimo(tbl_type.lq_type) || (tbl_type.antenna_type == ANT_MAIN))
+ /*FIXME:RS*/
+ if (is_mimo(tbl_type.lq_type) || (tbl_type.ant_type == ANT_A))
lq_cmd->general_params.single_stream_ant_msk
= LINK_QUAL_ANT_A_MSK;
else
if (ant_toggle_count <
NUM_TRY_BEFORE_ANTENNA_TOGGLE)
ant_toggle_count++;
- else {
+ else if (priv && rs_is_other_ant_connected(
+ priv->hw_params.valid_tx_ant,
+ tbl_type.ant_type)) {
rs_toggle_antenna(&new_rate, &tbl_type);
ant_toggle_count = 1;
}
if (is_legacy(tbl_type.lq_type)) {
if (ant_toggle_count < NUM_TRY_BEFORE_ANTENNA_TOGGLE)
ant_toggle_count++;
- else {
+ else if (priv && rs_is_other_ant_connected(
+ priv->hw_params.valid_tx_ant,
+ tbl_type.ant_type)) {
rs_toggle_antenna(&new_rate, &tbl_type);
ant_toggle_count = 1;
}
lq_sta->active_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
- lq_sta->active_mimo_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+ lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+ lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
IWL_DEBUG_RATE("sta_id %d rate 0x%X\n",
lq_sta->lq.sta_id, lq_sta->dbg_fixed.rate_n_flags);
if (lq_sta->dbg_fixed.rate_n_flags) {
- rs_fill_link_cmd(lq_sta, &lq_sta->dbg_fixed, &lq_sta->lq);
+ rs_fill_link_cmd(NULL, lq_sta, &lq_sta->dbg_fixed, &lq_sta->lq);
iwl_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC);
}
lq_sta = (void *)sta->rate_ctrl_priv;
lq_type = lq_sta->lq_info[lq_sta->active_tbl].lq_type;
- antenna = lq_sta->lq_info[lq_sta->active_tbl].antenna_type;
+ antenna = lq_sta->lq_info[lq_sta->active_tbl].ant_type;
if (is_legacy(lq_type))
i = IWL_RATE_54M_INDEX;
struct iwl4965_rate_info {
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
- u8 plcp_mimo; /* uCode API: IWL_RATE_MIMO_6M_PLCP, etc. */
+ u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
+ u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */
u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
IWL_RATE_48M_INDEX,
IWL_RATE_54M_INDEX,
IWL_RATE_60M_INDEX,
- IWL_RATE_COUNT,
+ IWL_RATE_COUNT, /*FIXME:RS:change to IWL_RATE_INDEX_COUNT,*/
IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
- IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
+ IWL_RATE_INVALID = IWL_RATE_COUNT,
};
enum {
IWL_RATE_36M_PLCP = 11,
IWL_RATE_48M_PLCP = 1,
IWL_RATE_54M_PLCP = 3,
- IWL_RATE_60M_PLCP = 3,
+ IWL_RATE_60M_PLCP = 3,/*FIXME:RS:should be removed*/
IWL_RATE_1M_PLCP = 10,
IWL_RATE_2M_PLCP = 20,
IWL_RATE_5M_PLCP = 55,
IWL_RATE_11M_PLCP = 110,
+ /*FIXME:RS:change to IWL_RATE_LEGACY_??M_PLCP */
+ /*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/
};
/* 4965 uCode API values for OFDM high-throughput (HT) bit rates */
IWL_RATE_SISO_48M_PLCP = 5,
IWL_RATE_SISO_54M_PLCP = 6,
IWL_RATE_SISO_60M_PLCP = 7,
- IWL_RATE_MIMO_6M_PLCP = 0x8,
- IWL_RATE_MIMO_12M_PLCP = 0x9,
- IWL_RATE_MIMO_18M_PLCP = 0xa,
- IWL_RATE_MIMO_24M_PLCP = 0xb,
- IWL_RATE_MIMO_36M_PLCP = 0xc,
- IWL_RATE_MIMO_48M_PLCP = 0xd,
- IWL_RATE_MIMO_54M_PLCP = 0xe,
- IWL_RATE_MIMO_60M_PLCP = 0xf,
+ IWL_RATE_MIMO2_6M_PLCP = 0x8,
+ IWL_RATE_MIMO2_12M_PLCP = 0x9,
+ IWL_RATE_MIMO2_18M_PLCP = 0xa,
+ IWL_RATE_MIMO2_24M_PLCP = 0xb,
+ IWL_RATE_MIMO2_36M_PLCP = 0xc,
+ IWL_RATE_MIMO2_48M_PLCP = 0xd,
+ IWL_RATE_MIMO2_54M_PLCP = 0xe,
+ IWL_RATE_MIMO2_60M_PLCP = 0xf,
+ IWL_RATE_MIMO3_6M_PLCP = 0x10,
+ IWL_RATE_MIMO3_12M_PLCP = 0x11,
+ IWL_RATE_MIMO3_18M_PLCP = 0x12,
+ IWL_RATE_MIMO3_24M_PLCP = 0x13,
+ IWL_RATE_MIMO3_36M_PLCP = 0x14,
+ IWL_RATE_MIMO3_48M_PLCP = 0x15,
+ IWL_RATE_MIMO3_54M_PLCP = 0x16,
+ IWL_RATE_MIMO3_60M_PLCP = 0x17,
IWL_RATE_SISO_INVM_PLCP,
- IWL_RATE_MIMO_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
+ IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
+ IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
};
/* MAC header values for bit rates */
/* possible actions when in legacy mode */
#define IWL_LEGACY_SWITCH_ANTENNA 0
#define IWL_LEGACY_SWITCH_SISO 1
-#define IWL_LEGACY_SWITCH_MIMO 2
+#define IWL_LEGACY_SWITCH_MIMO2 2
/* possible actions when in siso mode */
#define IWL_SISO_SWITCH_ANTENNA 0
-#define IWL_SISO_SWITCH_MIMO 1
+#define IWL_SISO_SWITCH_MIMO2 1
#define IWL_SISO_SWITCH_GI 2
/* possible actions when in mimo mode */
#define IWL_MIMO_SWITCH_ANTENNA_B 1
#define IWL_MIMO_SWITCH_GI 2
+/*FIXME:RS:separate MIMO2/3 transitions*/
+
+/*FIXME:RS:add posible acctions for MIMO3*/
+
#define IWL_ACTION_LIMIT 3 /* # possible actions */
#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
extern const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT];
-enum iwl4965_table_type {
+enum iwl_table_type {
LQ_NONE,
LQ_G, /* legacy types */
LQ_A,
LQ_SISO, /* high-throughput types */
- LQ_MIMO,
+ LQ_MIMO2,
+ LQ_MIMO3,
LQ_MAX,
};
#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
-#define is_siso(tbl) (((tbl) == LQ_SISO))
-#define is_mimo(tbl) (((tbl) == LQ_MIMO))
+#define is_siso(tbl) ((tbl) == LQ_SISO)
+#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
+#define is_mimo3(tbl) ((tbl) == LQ_MIMO3)
+#define is_mimo(tbl) (is_mimo2(tbl) || is_mimo3(tbl))
#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
-#define is_a_band(tbl) (((tbl) == LQ_A))
-#define is_g_and(tbl) (((tbl) == LQ_G))
-
-/* 4965 has 2 antennas/chains for Tx (but 3 for Rx) */
-enum iwl4965_antenna_type {
- ANT_NONE,
- ANT_MAIN,
- ANT_AUX,
- ANT_BOTH,
-};
+#define is_a_band(tbl) ((tbl) == LQ_A)
+#define is_g_and(tbl) ((tbl) == LQ_G)
+
+#define ANT_NONE 0x0
+#define ANT_A BIT(0)
+#define ANT_B BIT(1)
+#define ANT_AB (ANT_A | ANT_B)
+#define ANT_C BIT(2)
+#define ANT_AC (ANT_A | ANT_C)
+#define ANT_BC (ANT_B | ANT_C)
+#define ANT_ABC (ANT_AB | ANT_C)
+
+static inline u8 num_of_ant(u8 mask)
+{
+ return !!((mask) & ANT_A) +
+ !!((mask) & ANT_B) +
+ !!((mask) & ANT_C);
+}
static inline u8 iwl4965_get_prev_ieee_rate(u8 rate_index)
{
#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
IWL_RATE_SISO_##s##M_PLCP, \
- IWL_RATE_MIMO_##s##M_PLCP, \
+ IWL_RATE_MIMO2_##s##M_PLCP,\
+ IWL_RATE_MIMO3_##s##M_PLCP,\
IWL_RATE_##r##M_IEEE, \
IWL_RATE_##ip##M_INDEX, \
IWL_RATE_##in##M_INDEX, \
IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
+ /* FIXME:RS: ^^ should be INV (legacy) */
};
#ifdef CONFIG_IWL4965_HT
int ret;
int i;
- priv->antenna = (enum iwl4965_antenna)priv->cfg->mod_params->antenna;
priv->retry_rate = 1;
priv->ibss_beacon = NULL;
priv->iw_mode = IEEE80211_IF_TYPE_STA;
priv->use_ant_b_for_management_frame = 1; /* start with ant B */
- priv->valid_antenna = 0x7; /* assume all 3 connected */
priv->ps_mode = IWL_MIMO_PS_NONE;
/* Choose which receivers/antennas to use */
(rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK);
}
-static u8 is_single_stream(struct iwl_priv *priv)
-{
#ifdef CONFIG_IWL4965_HT
- if (!priv->current_ht_config.is_ht ||
- (priv->current_ht_config.supp_mcs_set[1] == 0) ||
- (priv->ps_mode == IWL_MIMO_PS_STATIC))
- return 1;
+static u8 is_single_rx_stream(struct iwl_priv *priv)
+{
+ return !priv->current_ht_config.is_ht ||
+ ((priv->current_ht_config.supp_mcs_set[1] == 0) &&
+ (priv->current_ht_config.supp_mcs_set[2] == 0)) ||
+ priv->ps_mode == IWL_MIMO_PS_STATIC;
+}
#else
+static inline u8 is_single_rx_stream(struct iwl_priv *priv)
+{
return 1;
-#endif /*CONFIG_IWL4965_HT */
- return 0;
}
+#endif /*CONFIG_IWL4965_HT */
int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags)
{
if (rate_n_flags & RATE_MCS_HT_MSK) {
idx = (rate_n_flags & 0xff);
- if (idx >= IWL_RATE_MIMO_6M_PLCP)
- idx = idx - IWL_RATE_MIMO_6M_PLCP;
+ if (idx >= IWL_RATE_MIMO2_6M_PLCP)
+ idx = idx - IWL_RATE_MIMO2_6M_PLCP;
idx += IWL_FIRST_OFDM_RATE;
/* skip 9M not supported in ht*/
int rate_index;
control->antenna_sel_tx =
- ((rate_n_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS);
+ ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
if (rate_n_flags & RATE_MCS_HT_MSK)
control->flags |= IEEE80211_TXCTL_OFDM_HT;
if (rate_n_flags & RATE_MCS_GF_MSK)
static int iwl4965_get_rx_chain_counter(struct iwl_priv *priv,
u8 *idle_state, u8 *rx_state)
{
- u8 is_single = is_single_stream(priv);
+ u8 is_single = is_single_rx_stream(priv);
u8 is_cam = test_bit(STATUS_POWER_PMI, &priv->status) ? 0 : 1;
/* # of Rx chains to use when expecting MIMO. */
priv->hw_params.tx_chains_num = 2;
priv->hw_params.rx_chains_num = 2;
- priv->hw_params.valid_tx_ant = (IWL_ANTENNA_MAIN | IWL_ANTENNA_AUX);
- priv->hw_params.valid_rx_ant = (IWL_ANTENNA_MAIN | IWL_ANTENNA_AUX);
+ priv->hw_params.valid_tx_ant = ANT_A | ANT_B;
+ priv->hw_params.valid_rx_ant = ANT_A | ANT_B;
priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
*/
void iwl4965_set_rxon_chain(struct iwl_priv *priv)
{
- u8 is_single = is_single_stream(priv);
+ u8 is_single = is_single_rx_stream(priv);
u8 idle_state, rx_state;
priv->staging_rxon.rx_chain = 0;
* Just after first association, iwl_chain_noise_calibration()
* checks which antennas actually *are* connected. */
priv->staging_rxon.rx_chain |=
- cpu_to_le16(priv->valid_antenna << RXON_RX_CHAIN_VALID_POS);
+ cpu_to_le16(priv->hw_params.valid_rx_ant <<
+ RXON_RX_CHAIN_VALID_POS);
/* How many receivers should we use? */
iwl4965_get_rx_chain_counter(priv, &idle_state, &rx_state);
#ifdef CONFIG_IWL4965_HT
-void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
+void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
struct ieee80211_ht_info *ht_info,
enum ieee80211_band band)
{
ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
ht_info->supp_mcs_set[0] = 0xFF;
- ht_info->supp_mcs_set[1] = 0xFF;
+ if (priv->hw_params.tx_chains_num >= 2)
+ ht_info->supp_mcs_set[1] = 0xFF;
+ if (priv->hw_params.tx_chains_num >= 3)
+ ht_info->supp_mcs_set[2] = 0xFF;
}
#endif /* CONFIG_IWL4965_HT */
rate_flags |= RATE_MCS_CCK_MSK;
/* Use Tx antenna B only */
- rate_flags |= RATE_MCS_ANT_B_MSK;
- rate_flags &= ~RATE_MCS_ANT_A_MSK;
+ rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/
link_cmd.rs_table[i].rate_n_flags =
iwl4965_hw_set_rate_n_flags(iwl4965_rates[r].plcp, rate_flags);
iwl4965_set_rxon_chain(priv);
- IWL_DEBUG_ASSOC("supported HT rate 0x%X %X "
+ IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X "
"rxon flags 0x%X operation mode :0x%X "
"extension channel offset 0x%x "
"control chan %d\n",
- ht_info->supp_mcs_set[0], ht_info->supp_mcs_set[1],
+ ht_info->supp_mcs_set[0],
+ ht_info->supp_mcs_set[1],
+ ht_info->supp_mcs_set[2],
le32_to_cpu(rxon->flags), ht_info->ht_protection,
ht_info->extension_chan_offset,
ht_info->control_channel);
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