Add new ampdu_action ops to support receiver BA.
The BA initiator session management in FW independently.
Signed-off-by: Shahar Levi <shahar_levi@xxxxxx>
---
Dependencies:
- BA Initiator patches have a runtime dependency on commit
"[RFC v5] wl1271: BA Initiator support"
Changes from v1:
- Add mutex and (wl->state == WL1271_STATE_OFF) protection
- "BIT(tid)" instead of "BIT(0) << tid"
- Move all event code move to the next patch
Changes from v2:
- Add supported FW version auto detection mechanism
drivers/net/wireless/wl12xx/acx.c | 36 ++++++++++++++++++++++
drivers/net/wireless/wl12xx/acx.h | 21 +++++++++++++
drivers/net/wireless/wl12xx/main.c | 59 ++++++++++++++++++++++++++++++++++++
3 files changed, 116 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c
index 54fd68d..f33ab50 100644
--- a/drivers/net/wireless/wl12xx/acx.c
+++ b/drivers/net/wireless/wl12xx/acx.c
@@ -1359,6 +1359,42 @@ out:
return ret;
}
+/* setup BA session receiver setting in the FW. */
+int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index,
+ u16 *ssn, u8 policy)
+{
+ struct wl1271_acx_ba_receiver_setup *acx;
+ int ret;
+
+ wl1271_debug(DEBUG_ACX, "acx ba receiver session setting");
+
+ acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+ if (!acx) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* Single link for now */
+ acx->link_id = 1;
+ acx->tid = tid_index;
+ acx->enable = policy;
+ acx->win_size = 0;
+
+ if (policy)
+ acx->ssn = *ssn;
+
+ ret = wl1271_cmd_configure(wl, ACX_BA_SESSION_RX_SETUP, acx,
+ sizeof(*acx));
+ if (ret < 0) {
+ wl1271_warning("acx ba receiver session failed: %d", ret);
+ goto out;
+ }
+
+out:
+ kfree(acx);
+ return ret;
+}
+
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime)
{
struct wl1271_acx_fw_tsf_information *tsf_info;
diff --git a/drivers/net/wireless/wl12xx/acx.h b/drivers/net/wireless/wl12xx/acx.h
index df48468..8fc98b7 100644
--- a/drivers/net/wireless/wl12xx/acx.h
+++ b/drivers/net/wireless/wl12xx/acx.h
@@ -1085,6 +1085,25 @@ struct wl1271_acx_ba_session_policy {
u8 padding[3];
} __packed;
+struct wl1271_acx_ba_receiver_setup {
+ struct acx_header header;
+
+ /* Specifies Link Id, Range 0-31, 0xFF means ANY Link Id */
+ u8 link_id;
+
+ u8 tid;
+
+ u8 enable;
+
+ u8 padding[1];
+
+ /* Windows size in number of packets */
+ u16 win_size;
+
+ /* BA session starting sequence number. RANGE 0-FFF */
+ u16 ssn;
+} __packed;
+
struct wl1271_acx_fw_tsf_information {
struct acx_header header;
@@ -1222,6 +1241,8 @@ int wl1271_acx_set_ht_information(struct wl1271 *wl,
int wl1271_acx_set_ba_session(struct wl1271 *wl,
enum ieee80211_back_parties direction,
u8 tid_index, u8 policy);
+int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index,
+ u16 *ssn, u8 policy);
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime);
#endif /* __WL1271_ACX_H__ */
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index c44462d..04b69ab 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -2251,6 +2251,64 @@ static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
return 0;
}
+int wl1271_op_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn)
+{
+ struct wl1271 *wl = hw->priv;
+ int ret;
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ if ((wl->ba_allowed) && (wl->ba_support)) {
+ ret = wl1271_acx_set_ba_receiver_session(wl, tid, ssn,
+ true);
+ if (!ret)
+ wl->ba_rx_bitmap |= BIT(tid);
+ } else
+ ret = -EPERM;
+ break;
+
+ case IEEE80211_AMPDU_RX_STOP:
+ ret = wl1271_acx_set_ba_receiver_session(wl, tid, ssn, false);
+ if (!ret)
+ wl->ba_rx_bitmap &= ~BIT(tid);
+ break;
+
+ /*
+ * The BA initiator session management in FW independently.
+ * Falling break here on purpose for all TX APDU commands.
+ */
+ case IEEE80211_AMPDU_TX_START:
+ case IEEE80211_AMPDU_TX_STOP:
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ ret = -EINVAL;
+ break;
+
+ default:
+ wl1271_error("Incorrect ampdu action id=%x\n", action);
+ ret = -ENODEV;
+ }
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
/* can't be const, mac80211 writes to this */
static struct ieee80211_rate wl1271_rates[] = {
{ .bitrate = 10,
@@ -2497,6 +2555,7 @@ static const struct ieee80211_ops wl1271_ops = {
.conf_tx = wl1271_op_conf_tx,
.get_tsf = wl1271_op_get_tsf,
.get_survey = wl1271_op_get_survey,
+ .ampdu_action = wl1271_op_ampdu_action,
CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
};
--
1.7.0.4
--
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