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iwlegacy: 4965: toggle tx antenna inline

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Make function static and change antenna number inline.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka 2011-12-23 08:13:44 +01:00 committed by John W. Linville
parent 17d4eca643
commit a0c1ef3b12
2 changed files with 18 additions and 25 deletions
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41
drivers/net/wireless/iwlegacy/4965-mac.c
View File

@ -825,6 +825,21 @@ il4965_ant_idx_to_flags(u8 ant_idx)
return BIT(ant_idx) << RATE_MCS_ANT_POS;
}
static void
il4965_toggle_tx_ant(struct il_priv *il, u8 *ant, u8 valid)
{
int i;
u8 ind = *ant;
for (i = 0; i < RATE_ANT_NUM - 1; i++) {
ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
if (valid & BIT(ind)) {
*ant = ind;
return;
}
}
}
int
il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif)
{
@ -960,8 +975,7 @@ il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif)
if (il->cfg->scan_rx_antennas[band])
rx_ant = il->cfg->scan_rx_antennas[band];
il->scan_tx_ant[band] =
il4965_toggle_tx_ant(il, il->scan_tx_ant[band], scan_tx_antennas);
il4965_toggle_tx_ant(il, &il->scan_tx_ant[band], scan_tx_antennas);
rate_flags |= il4965_ant_idx_to_flags(il->scan_tx_ant[band]);
scan->tx_cmd.rate_n_flags =
il4965_hw_set_rate_n_flags(rate, rate_flags);
@ -1171,20 +1185,6 @@ il4965_set_rxon_chain(struct il_priv *il, struct il_rxon_context *ctx)
active_rx_cnt < idle_rx_cnt);
}
u8
il4965_toggle_tx_ant(struct il_priv *il, u8 ant, u8 valid)
{
int i;
u8 ind = ant;
for (i = 0; i < RATE_ANT_NUM - 1; i++) {
ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
if (valid & BIT(ind))
return ind;
}
return ant;
}
static const char *
il4965_get_fh_string(int cmd)
{
@ -1588,10 +1588,7 @@ il4965_tx_cmd_build_rate(struct il_priv *il, struct il_tx_cmd *tx_cmd,
rate_flags |= RATE_MCS_CCK_MSK;
/* Set up antennas */
il->mgmt_tx_ant =
il4965_toggle_tx_ant(il, il->mgmt_tx_ant,
il->hw_params.valid_tx_ant);
il4965_toggle_tx_ant(il, &il->mgmt_tx_ant, il->hw_params.valid_tx_ant);
rate_flags |= il4965_ant_idx_to_flags(il->mgmt_tx_ant);
/* Set the rate in the TX cmd */
@ -3540,9 +3537,7 @@ il4965_hw_get_beacon_cmd(struct il_priv *il, struct il_frame *frame)
/* Set up packet rate and flags */
rate = il_get_lowest_plcp(il, il->beacon_ctx);
il->mgmt_tx_ant =
il4965_toggle_tx_ant(il, il->mgmt_tx_ant,
il->hw_params.valid_tx_ant);
il4965_toggle_tx_ant(il, &il->mgmt_tx_ant, il->hw_params.valid_tx_ant);
rate_flags = il4965_ant_idx_to_flags(il->mgmt_tx_ant);
if ((rate >= IL_FIRST_CCK_RATE) && (rate <= IL_LAST_CCK_RATE))
rate_flags |= RATE_MCS_CCK_MSK;

2
drivers/net/wireless/iwlegacy/4965.h
View File

@ -107,8 +107,6 @@ void il4965_set_wr_ptrs(struct il_priv *il, int txq_id, u32 idx);
void il4965_tx_queue_set_status(struct il_priv *il, struct il_tx_queue *txq,
int tx_fifo_id, int scd_retry);
u8 il4965_toggle_tx_ant(struct il_priv *il, u8 ant_idx, u8 valid);
/* rx */
void il4965_hdl_missed_beacon(struct il_priv *il, struct il_rx_buf *rxb);
bool il4965_good_plcp_health(struct il_priv *il, struct il_rx_pkt *pkt);