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iwlwifi: add checking for the condition to reduce tx power

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When bluetooth coex is active and certain condition matched,
driver need to decide should the tx power been reduce or not.
Adding the logic to manage it.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Wey-Yi Guy 2012-04-19 09:48:01 -07:00 committed by John W. Linville
parent 9a00be04e6
commit 354ce4a4ca
2 changed files with 40 additions and 5 deletions
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44
drivers/net/wireless/iwlwifi/iwl-agn-lib.c
View file

@ -541,9 +541,10 @@ static void iwlagn_print_uartmsg(struct iwl_priv *priv,
BT_UART_MSG_FRAME7CONNECTABLE_POS);
}
static void iwlagn_set_kill_msk(struct iwl_priv *priv,
static bool iwlagn_set_kill_msk(struct iwl_priv *priv,
struct iwl_bt_uart_msg *uart_msg)
{
bool need_update = false;
u8 kill_msk;
static const __le32 bt_kill_ack_msg[2] = {
IWLAGN_BT_KILL_ACK_MASK_DEFAULT,
@ -560,10 +561,39 @@ static void iwlagn_set_kill_msk(struct iwl_priv *priv,
priv->kill_ack_mask = bt_kill_ack_msg[kill_msk];
priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK;
priv->kill_cts_mask = bt_kill_cts_msg[kill_msk];
/* schedule to send runtime bt_config */
queue_work(priv->workqueue, &priv->bt_runtime_config);
need_update = true;
}
return need_update;
}
static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv,
struct iwl_bt_uart_msg *uart_msg)
{
bool need_update = false;
if (!priv->reduced_txpower &&
!iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&
(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
BT_UART_MSG_FRAME3OBEX_MSK)) &&
!(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK))) {
/* enabling reduced tx power */
priv->reduced_txpower = true;
priv->bt_valid |= IWLAGN_BT_VALID_REDUCED_TX_PWR;
need_update = true;
} else if (priv->reduced_txpower &&
(iwl_is_associated(priv, IWL_RXON_CTX_PAN) ||
(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) ||
!(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |
BT_UART_MSG_FRAME3OBEX_MSK)))) {
/* disable reduced tx power */
priv->reduced_txpower = false;
priv->bt_valid &= ~IWLAGN_BT_VALID_REDUCED_TX_PWR;
need_update = true;
}
return need_update;
}
int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
@ -611,7 +641,11 @@ int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
}
}
iwlagn_set_kill_msk(priv, uart_msg);
/* schedule to send runtime bt_config */
if (iwlagn_set_kill_msk(priv, uart_msg) ||
iwlagn_fill_txpower_mode(priv, uart_msg))
queue_work(priv->workqueue, &priv->bt_runtime_config);
/* FIXME: based on notification, adjust the prio_boost */

1
drivers/net/wireless/iwlwifi/iwl-dev.h
View file

@ -921,6 +921,7 @@ struct iwl_priv {
__le32 kill_ack_mask;
__le32 kill_cts_mask;
__le16 bt_valid;
bool reduced_txpower;
u16 bt_on_thresh;
u16 bt_duration;
u16 dynamic_frag_thresh;