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ath9k_htc: Introduce new HTC API

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A new routine that takes an endpoint explicitly is
introduced. The normal htc_send() now retrieves the endpoint
from the packet's private data. This would be useful
in TX completion when the endpoint ID would be required.
While at it, use a helper function to map the queue to endpoint.

Data/mgmt/beacon packets use htc_send(), while WMI comamnds
pass the endpoint to HTC.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2011-04-13 11:25:35 +05:30 committed by John W. Linville
parent 8e86a54715
commit d67ee53393
6 changed files with 49 additions and 30 deletions
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1
drivers/net/wireless/ath/ath9k/htc.h
View File

@ -276,6 +276,7 @@ struct ath9k_htc_tx {
struct ath9k_htc_tx_ctl {
u8 type; /* ATH9K_HTC_* */
u8 epid;
};
static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)

3
drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
View File

@ -391,12 +391,13 @@ static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
memset(tx_ctl, 0, sizeof(*tx_ctl));
tx_ctl->type = ATH9K_HTC_BEACON;
tx_ctl->epid = priv->beacon_ep;
beacon_hdr.vif_index = avp->index;
tx_fhdr = skb_push(beacon, sizeof(beacon_hdr));
memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));
ret = htc_send(priv->htc, beacon, priv->beacon_ep);
ret = htc_send(priv->htc, beacon);
if (ret != 0) {
if (ret == -ENOMEM) {
ath_dbg(common, ATH_DBG_BSTUCK,

56
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
View File

@ -76,6 +76,34 @@ void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv)
spin_unlock_bh(&priv->tx.tx_lock);
}
static enum htc_endpoint_id get_htc_epid(struct ath9k_htc_priv *priv,
u16 qnum)
{
enum htc_endpoint_id epid;
switch (qnum) {
case 0:
TX_QSTAT_INC(WME_AC_VO);
epid = priv->data_vo_ep;
break;
case 1:
TX_QSTAT_INC(WME_AC_VI);
epid = priv->data_vi_ep;
break;
case 2:
TX_QSTAT_INC(WME_AC_BE);
epid = priv->data_be_ep;
break;
case 3:
default:
TX_QSTAT_INC(WME_AC_BK);
epid = priv->data_bk_ep;
break;
}
return epid;
}
int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
struct ath9k_tx_queue_info *qinfo)
{
@ -113,7 +141,6 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
struct ath9k_htc_sta *ista;
struct ath9k_htc_vif *avp = NULL;
struct ath9k_htc_tx_ctl *tx_ctl;
enum htc_endpoint_id epid;
u16 qnum;
__le16 fc;
u8 *tx_fhdr;
@ -197,31 +224,12 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
if (is_cab) {
CAB_STAT_INC;
epid = priv->cab_ep;
tx_ctl->epid = priv->cab_ep;
goto send;
}
qnum = skb_get_queue_mapping(skb);
switch (qnum) {
case 0:
TX_QSTAT_INC(WME_AC_VO);
epid = priv->data_vo_ep;
break;
case 1:
TX_QSTAT_INC(WME_AC_VI);
epid = priv->data_vi_ep;
break;
case 2:
TX_QSTAT_INC(WME_AC_BE);
epid = priv->data_be_ep;
break;
case 3:
default:
TX_QSTAT_INC(WME_AC_BK);
epid = priv->data_bk_ep;
break;
}
tx_ctl->epid = get_htc_epid(priv, qnum);
} else {
struct tx_mgmt_hdr mgmt_hdr;
@ -251,10 +259,10 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
tx_fhdr = skb_push(skb, sizeof(mgmt_hdr));
memcpy(tx_fhdr, (u8 *) &mgmt_hdr, sizeof(mgmt_hdr));
epid = priv->mgmt_ep;
tx_ctl->epid = priv->mgmt_ep;
}
send:
return htc_send(priv->htc, skb, epid);
return htc_send(priv->htc, skb);
}
static bool ath9k_htc_check_tx_aggr(struct ath9k_htc_priv *priv,

12
drivers/net/wireless/ath/ath9k/htc_hst.c
View File

@ -286,8 +286,16 @@ err:
return ret;
}
int htc_send(struct htc_target *target, struct sk_buff *skb,
enum htc_endpoint_id epid)
int htc_send(struct htc_target *target, struct sk_buff *skb)
{
struct ath9k_htc_tx_ctl *tx_ctl;
tx_ctl = HTC_SKB_CB(skb);
return htc_issue_send(target, skb, skb->len, 0, tx_ctl->epid);
}
int htc_send_epid(struct htc_target *target, struct sk_buff *skb,
enum htc_endpoint_id epid)
{
return htc_issue_send(target, skb, skb->len, 0, epid);
}

5
drivers/net/wireless/ath/ath9k/htc_hst.h
View File

@ -204,8 +204,9 @@ int htc_init(struct htc_target *target);
int htc_connect_service(struct htc_target *target,
struct htc_service_connreq *service_connreq,
enum htc_endpoint_id *conn_rsp_eid);
int htc_send(struct htc_target *target, struct sk_buff *skb,
enum htc_endpoint_id eid);
int htc_send(struct htc_target *target, struct sk_buff *skb);
int htc_send_epid(struct htc_target *target, struct sk_buff *skb,
enum htc_endpoint_id epid);
void htc_stop(struct htc_target *target);
void htc_start(struct htc_target *target);

2
drivers/net/wireless/ath/ath9k/wmi.c
View File

@ -267,7 +267,7 @@ static int ath9k_wmi_cmd_issue(struct wmi *wmi,
hdr->command_id = cpu_to_be16(cmd);
hdr->seq_no = cpu_to_be16(++wmi->tx_seq_id);
return htc_send(wmi->htc, skb, wmi->ctrl_epid);
return htc_send_epid(wmi->htc, skb, wmi->ctrl_epid);
}
int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,