Merge branch 'wlan-cmn.driver.lnx.2.0' of ../os/qca-wifi-host-cmn into HEAD

os_if/p2p/inc/wlan_cfg80211_p2p.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2017 The Linux Foundation. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: declares P2P functions interfacing with linux kernel
+ */
+
+#ifndef _WLAN_CFG80211_P2P_H_
+#define _WLAN_CFG80211_P2P_H_
+
+#include <qdf_types.h>
+
+struct wlan_objmgr_psoc;
+struct wlan_objmgr_vdev;
+struct ieee80211_channel;
+
+/**
+ * wlan_p2p_start() - start p2p component
+ * @psoc: soc object
+ *
+ * This function used to start P2P component and register events.
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_p2p_start(struct wlan_objmgr_psoc *psoc);
+
+/**
+ * wlan_p2p_stop() - stop p2p component
+ * @psoc: soc object
+ *
+ * This function used to stop P2P component and unregister events.
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_p2p_stop(struct wlan_objmgr_psoc *psoc);
+
+/**
+ * wlan_cfg80211_roc() - API to process cfg80211 roc request
+ * @vdev: Pointer to vdev object
+ * @chan: Pointer to channel
+ * @duration: Duration for this roc request
+ * @cookie: Pointer to return cookie to up layer
+ *
+ * API to trigger remain on channel request. It returns cookie
+ * as the identifier of roc.
+ *
+ * Return: 0 for success, non zero for failure
+ */
+int wlan_cfg80211_roc(struct wlan_objmgr_vdev *vdev,
+	struct ieee80211_channel *chan, uint32_t duration,
+	uint64_t *cookie);
+
+/**
+ * wlan_cfg80211_cancel_roc() - API to process cfg80211 cancel remain
+ * on channel request
+ * @vdev: Pointer to vdev object
+ * @cookie: Find out the roc request by cookie
+ *
+ * API to trigger cancel remain on channel request.
+ *
+ * Return: 0 for success, non zero for failure
+ */
+int wlan_cfg80211_cancel_roc(struct wlan_objmgr_vdev *vdev,
+	uint64_t cookie);
+
+/**
+ * wlan_cfg80211_mgmt_tx() - API to process cfg80211 mgmt tx request
+ * @vdev: Pointer to vdev object
+ * @chan: Pointer to channel
+ * @wait: wait time for this mgmt tx request
+ * @buf: TX buffer
+ * @len: Length of tx buffer
+ * @no_cck: Required cck or not
+ * @dont_wait_for_ack: Wait for ack or not
+ * @cookie: Return the cookie to caller
+ *
+ * API to trigger mgmt frame tx request. It returns cookie as the
+ * identifier of this tx.
+ *
+ * Return: 0 for success, non zero for failure
+ */
+int wlan_cfg80211_mgmt_tx(struct wlan_objmgr_vdev *vdev,
+	struct ieee80211_channel *chan, bool offchan, uint32_t wait,
+	const uint8_t *buf, uint32_t len, bool no_cck,
+	bool dont_wait_for_ack, uint64_t *cookie);
+
+/**
+ * wlan_cfg80211_mgmt_tx_cancel() - API to process cfg80211 cancel to
+ * wait mgmt tx
+ * @vdev: Pointer to vdev object
+ * @cookie: Find out the mgmt tx request by cookie
+ *
+ * API to trigger cancel mgmt frame tx request.
+ *
+ * Return: 0 for success, non zero for failure
+ */
+int wlan_cfg80211_mgmt_tx_cancel(struct wlan_objmgr_vdev *vdev,
+		uint64_t cookie);
+
+#endif /* _WLAN_CFG80211_P2P_H_ */

os_if/p2p/src/wlan_cfg80211_p2p.c

@@ -0,0 +1,499 @@
+/*
+ * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: defines driver functions interfacing with linux kernel
+ */
+
+#include <qdf_util.h>
+#include <wlan_objmgr_psoc_obj.h>
+#include <wlan_objmgr_global_obj.h>
+#include <wlan_objmgr_pdev_obj.h>
+#include <wlan_objmgr_vdev_obj.h>
+#include <wlan_objmgr_peer_obj.h>
+#include <wlan_p2p_public_struct.h>
+#include <wlan_p2p_ucfg_api.h>
+#include <wlan_policy_mgr_api.h>
+#include <wlan_utility.h>
+#include <wlan_osif_priv.h>
+#include "wlan_cfg80211.h"
+#include "wlan_cfg80211_p2p.h"
+
+#define MAX_NO_OF_2_4_CHANNELS 14
+#define MAX_OFFCHAN_TIME_FOR_DNBS 150
+
+/**
+ * wlan_p2p_rx_callback() - Callback for rx mgmt frame
+ * @user_data: pointer to soc object
+ * @rx_frame: RX mgmt frame information
+ *
+ * This callback will be used to rx frames in os interface.
+ *
+ * Return: None
+ */
+static void wlan_p2p_rx_callback(void *user_data,
+	struct p2p_rx_mgmt_frame *rx_frame)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_objmgr_vdev *vdev;
+	struct vdev_osif_priv *osif_priv;
+	struct wireless_dev *wdev;
+	uint16_t freq;
+
+	cfg80211_debug("user data:%pK, vdev id:%d, rssi:%d, buf:%pK, len:%d",
+		user_data, rx_frame->vdev_id, rx_frame->rx_rssi,
+		rx_frame->buf, rx_frame->frame_len);
+
+	psoc = user_data;
+	if (!psoc) {
+		cfg80211_err("psoc is null");
+		return;
+	}
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+		rx_frame->vdev_id, WLAN_P2P_ID);
+	if (!vdev) {
+		cfg80211_err("vdev is null");
+		return;
+	}
+
+	osif_priv = wlan_vdev_get_ospriv(vdev);
+	if (!osif_priv) {
+		cfg80211_err("osif_priv is null");
+		goto fail;
+	}
+
+	wdev = osif_priv->wdev;
+	if (!wdev) {
+		cfg80211_err("wdev is null");
+		goto fail;
+	}
+
+	if (rx_frame->rx_chan <= MAX_NO_OF_2_4_CHANNELS)
+		freq = ieee80211_channel_to_frequency(
+			rx_frame->rx_chan, NL80211_BAND_2GHZ);
+	else
+		freq = ieee80211_channel_to_frequency(
+			rx_frame->rx_chan, NL80211_BAND_5GHZ);
+
+	cfg80211_debug("Indicate frame over nl80211, vdev id:%d, idx:%d",
+		   rx_frame->vdev_id, wdev->netdev->ifindex);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0))
+	cfg80211_rx_mgmt(wdev, freq, rx_frame->rx_rssi * 100,
+		rx_frame->buf, rx_frame->frame_len,
+		NL80211_RXMGMT_FLAG_ANSWERED);
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
+	cfg80211_rx_mgmt(wdev, freq, rx_frame->rx_rssi * 100,
+		rx_frame->buf, rx_frame->frame_len,
+		NL80211_RXMGMT_FLAG_ANSWERED, GFP_ATOMIC);
+#else
+	cfg80211_rx_mgmt(wdev, freq, rx_frame->rx_rssi * 100,
+		rx_frame->buf, rx_frame->frame_len, GFP_ATOMIC);
+#endif /* LINUX_VERSION_CODE */
+fail:
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_P2P_ID);
+}
+
+/**
+ * wlan_p2p_action_tx_cnf_callback() - Callback for tx confirmation
+ * @user_data: pointer to soc object
+ * @tx_cnf: tx confirmation information
+ *
+ * This callback will be used to give tx mgmt frame confirmation to
+ * os interface.
+ *
+ * Return: None
+ */
+static void wlan_p2p_action_tx_cnf_callback(void *user_data,
+	struct p2p_tx_cnf *tx_cnf)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_objmgr_vdev *vdev;
+	struct vdev_osif_priv *osif_priv;
+	struct wireless_dev *wdev;
+	bool is_success;
+
+	cfg80211_debug("user data:%pK, action cookie:%llx, buf:%pK, len:%d, tx status:%d",
+		user_data, tx_cnf->action_cookie, tx_cnf->buf,
+		tx_cnf->buf_len, tx_cnf->status);
+
+	psoc = user_data;
+	if (!psoc) {
+		cfg80211_err("psoc is null");
+		return;
+	}
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+		tx_cnf->vdev_id, WLAN_P2P_ID);
+	if (!vdev) {
+		cfg80211_err("vdev is null");
+		return;
+	}
+
+	osif_priv = wlan_vdev_get_ospriv(vdev);
+	if (!osif_priv) {
+		cfg80211_err("osif_priv is null");
+		goto fail;
+	}
+
+	wdev = osif_priv->wdev;
+	if (!wdev) {
+		cfg80211_err("wireless dev is null");
+		goto fail;
+	}
+
+	is_success = tx_cnf->status ? false : true;
+	cfg80211_mgmt_tx_status(
+		wdev,
+		tx_cnf->action_cookie,
+		tx_cnf->buf, tx_cnf->buf_len,
+		is_success, GFP_KERNEL);
+fail:
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_P2P_ID);
+}
+
+#ifdef FEATURE_P2P_LISTEN_OFFLOAD
+/**
+ * wlan_p2p_lo_event_callback() - Callback for listen offload event
+ * @user_data: pointer to soc object
+ * @p2p_lo_event: listen offload event information
+ *
+ * This callback will be used to give listen offload event to os interface.
+ *
+ * Return: None
+ */
+static void wlan_p2p_lo_event_callback(void *user_data,
+	struct p2p_lo_event *p2p_lo_event)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_objmgr_vdev *vdev;
+	struct vdev_osif_priv *osif_priv;
+	struct wireless_dev *wdev;
+	struct sk_buff *vendor_event;
+
+	cfg80211_debug("user data:%pK, vdev id:%d, reason code:%d",
+		user_data, p2p_lo_event->vdev_id,
+		p2p_lo_event->reason_code);
+
+	psoc = user_data;
+	if (!psoc) {
+		cfg80211_err("psoc is null");
+		return;
+	}
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+		p2p_lo_event->vdev_id, WLAN_P2P_ID);
+	if (!vdev) {
+		cfg80211_err("vdev is null");
+		return;
+	}
+
+	osif_priv = wlan_vdev_get_ospriv(vdev);
+	if (!osif_priv) {
+		cfg80211_err("osif_priv is null");
+		goto fail;
+	}
+
+	wdev = osif_priv->wdev;
+	if (!wdev) {
+		cfg80211_err("wireless dev is null");
+		goto fail;
+	}
+
+	vendor_event = cfg80211_vendor_event_alloc(wdev->wiphy, NULL,
+			sizeof(uint32_t) + NLMSG_HDRLEN,
+			QCA_NL80211_VENDOR_SUBCMD_P2P_LO_EVENT_INDEX,
+			GFP_KERNEL);
+	if (!vendor_event) {
+		cfg80211_err("cfg80211_vendor_event_alloc failed");
+		goto fail;
+	}
+
+	if (nla_put_u32(vendor_event,
+		QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_STOP_REASON,
+		p2p_lo_event->reason_code)) {
+		cfg80211_err("nla put failed");
+		kfree_skb(vendor_event);
+		goto fail;
+	}
+
+	cfg80211_vendor_event(vendor_event, GFP_KERNEL);
+
+fail:
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_P2P_ID);
+}
+
+static inline void wlan_p2p_init_lo_event(struct p2p_start_param *start_param,
+					  struct wlan_objmgr_psoc *psoc)
+{
+	start_param->lo_event_cb = wlan_p2p_lo_event_callback;
+	start_param->lo_event_cb_data = psoc;
+}
+#else
+static inline void wlan_p2p_init_lo_event(struct p2p_start_param *start_param,
+					  struct wlan_objmgr_psoc *psoc)
+{
+}
+#endif /* FEATURE_P2P_LISTEN_OFFLOAD */
+/**
+ * wlan_p2p_event_callback() - Callback for P2P event
+ * @user_data: pointer to soc object
+ * @p2p_event: p2p event information
+ *
+ * This callback will be used to give p2p event to os interface.
+ *
+ * Return: None
+ */
+static void wlan_p2p_event_callback(void *user_data,
+	struct p2p_event *p2p_event)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_objmgr_vdev *vdev;
+	struct ieee80211_channel *chan;
+	struct vdev_osif_priv *osif_priv;
+	struct wireless_dev *wdev;
+
+	cfg80211_debug("user data:%pK, vdev id:%d, event type:%d",
+		user_data, p2p_event->vdev_id, p2p_event->roc_event);
+
+	psoc = user_data;
+	if (!psoc) {
+		cfg80211_err("psoc is null");
+		return;
+	}
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+		p2p_event->vdev_id, WLAN_P2P_ID);
+	if (!vdev) {
+		cfg80211_err("vdev is null");
+		return;
+	}
+
+	osif_priv = wlan_vdev_get_ospriv(vdev);
+	if (!osif_priv) {
+		cfg80211_err("osif_priv is null");
+		goto fail;
+	}
+
+	wdev = osif_priv->wdev;
+	if (!wdev) {
+		cfg80211_err("wireless dev is null");
+		goto fail;
+	}
+
+	chan = ieee80211_get_channel(wdev->wiphy,
+				     wlan_chan_to_freq(p2p_event->chan));
+	if (!chan) {
+		cfg80211_err("channel conversion failed");
+		goto fail;
+	}
+
+	if (p2p_event->roc_event == ROC_EVENT_READY_ON_CHAN) {
+		cfg80211_ready_on_channel(wdev,
+			p2p_event->cookie, chan,
+			p2p_event->duration, GFP_KERNEL);
+	} else if (p2p_event->roc_event == ROC_EVENT_COMPLETED) {
+		cfg80211_remain_on_channel_expired(wdev,
+			p2p_event->cookie, chan, GFP_KERNEL);
+	} else {
+		cfg80211_err("Invalid p2p event");
+	}
+
+fail:
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_P2P_ID);
+}
+
+QDF_STATUS wlan_p2p_start(struct wlan_objmgr_psoc *psoc)
+{
+	struct p2p_start_param start_param;
+
+	if (!psoc) {
+		cfg80211_err("psoc null");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	start_param.rx_cb = wlan_p2p_rx_callback;
+	start_param.rx_cb_data = psoc;
+	start_param.event_cb = wlan_p2p_event_callback;
+	start_param.event_cb_data = psoc;
+	start_param.tx_cnf_cb = wlan_p2p_action_tx_cnf_callback;
+	start_param.tx_cnf_cb_data = psoc;
+	wlan_p2p_init_lo_event(&start_param, psoc);
+
+	return ucfg_p2p_psoc_start(psoc, &start_param);
+}
+
+QDF_STATUS wlan_p2p_stop(struct wlan_objmgr_psoc *psoc)
+{
+	if (!psoc) {
+		cfg80211_err("psoc null");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	return ucfg_p2p_psoc_stop(psoc);
+}
+
+int wlan_cfg80211_roc(struct wlan_objmgr_vdev *vdev,
+	struct ieee80211_channel *chan, uint32_t duration,
+	uint64_t *cookie)
+{
+	struct p2p_roc_req roc_req = {0};
+	struct wlan_objmgr_psoc *psoc;
+	uint8_t vdev_id;
+	bool ok;
+	int ret;
+
+	if (!vdev) {
+		cfg80211_err("invalid vdev object");
+		return -EINVAL;
+	}
+
+	if (!chan) {
+		cfg80211_err("invalid channel");
+		return -EINVAL;
+	}
+
+	psoc = wlan_vdev_get_psoc(vdev);
+	vdev_id = wlan_vdev_get_id(vdev);
+	if (!psoc) {
+		cfg80211_err("psoc handle is NULL");
+		return -EINVAL;
+	}
+
+	roc_req.chan = (uint32_t)wlan_freq_to_chan(chan->center_freq);
+	roc_req.duration = duration;
+	roc_req.vdev_id = (uint32_t)vdev_id;
+
+	ret = policy_mgr_is_chan_ok_for_dnbs(psoc, roc_req.chan, &ok);
+	if (QDF_IS_STATUS_ERROR(ret)) {
+		cfg80211_err("policy_mgr_is_chan_ok_for_dnbs():ret:%d",
+			ret);
+		return -EINVAL;
+	}
+
+	if (!ok) {
+		cfg80211_err("channel%d not OK for DNBS", roc_req.chan);
+		return -EINVAL;
+	}
+
+	return qdf_status_to_os_return(
+		ucfg_p2p_roc_req(psoc, &roc_req, cookie));
+}
+
+int wlan_cfg80211_cancel_roc(struct wlan_objmgr_vdev *vdev,
+		uint64_t cookie)
+{
+	struct wlan_objmgr_psoc *psoc;
+
+	if (!vdev) {
+		cfg80211_err("invalid vdev object");
+		return -EINVAL;
+	}
+
+	psoc = wlan_vdev_get_psoc(vdev);
+	if (!psoc) {
+		cfg80211_err("psoc handle is NULL");
+		return -EINVAL;
+	}
+
+	return qdf_status_to_os_return(
+		ucfg_p2p_roc_cancel_req(psoc, cookie));
+}
+
+int wlan_cfg80211_mgmt_tx(struct wlan_objmgr_vdev *vdev,
+		struct ieee80211_channel *chan, bool offchan,
+		unsigned int wait,
+		const uint8_t *buf, uint32_t len, bool no_cck,
+		bool dont_wait_for_ack, uint64_t *cookie)
+{
+	struct p2p_mgmt_tx mgmt_tx = {0};
+	struct wlan_objmgr_psoc *psoc;
+	uint8_t vdev_id;
+
+	if (!vdev) {
+		cfg80211_err("invalid vdev object");
+		return -EINVAL;
+	}
+
+	if (!chan) {
+		cfg80211_err("invalid channel");
+		return -EINVAL;
+	}
+
+	psoc = wlan_vdev_get_psoc(vdev);
+	vdev_id = wlan_vdev_get_id(vdev);
+	if (!psoc) {
+		cfg80211_err("psoc handle is NULL");
+		return -EINVAL;
+	}
+
+	/**
+	 * When offchannel time is more than MAX_OFFCHAN_TIME_FOR_DNBS,
+	 * allow offchannel only if Do_Not_Switch_Channel is not set.
+	 */
+	if (wait > MAX_OFFCHAN_TIME_FOR_DNBS) {
+		int ret;
+		bool ok;
+		uint32_t channel = wlan_freq_to_chan(chan->center_freq);
+
+		ret = policy_mgr_is_chan_ok_for_dnbs(psoc, channel, &ok);
+		if (QDF_IS_STATUS_ERROR(ret)) {
+			cfg80211_err("policy_mgr_is_chan_ok_for_dnbs():ret:%d",
+				ret);
+			return -EINVAL;
+		}
+		if (!ok) {
+			cfg80211_err("Rejecting mgmt_tx for channel:%d as DNSC is set",
+				channel);
+			return -EINVAL;
+		}
+	}
+
+	mgmt_tx.vdev_id = (uint32_t)vdev_id;
+	mgmt_tx.chan = (uint32_t)wlan_freq_to_chan(chan->center_freq);
+	mgmt_tx.wait = wait;
+	mgmt_tx.len = len;
+	mgmt_tx.no_cck = (uint32_t)no_cck;
+	mgmt_tx.dont_wait_for_ack = (uint32_t)dont_wait_for_ack;
+	mgmt_tx.off_chan = (uint32_t)offchan;
+	mgmt_tx.buf = buf;
+
+	return qdf_status_to_os_return(
+		ucfg_p2p_mgmt_tx(psoc, &mgmt_tx, cookie));
+}
+
+int wlan_cfg80211_mgmt_tx_cancel(struct wlan_objmgr_vdev *vdev,
+	uint64_t cookie)
+{
+	struct wlan_objmgr_psoc *psoc;
+
+	if (!vdev) {
+		cfg80211_err("invalid vdev object");
+		return -EINVAL;
+	}
+
+	psoc = wlan_vdev_get_psoc(vdev);
+	if (!psoc) {
+		cfg80211_err("psoc handle is NULL");
+		return -EINVAL;
+	}
+
+	return qdf_status_to_os_return(
+		ucfg_p2p_mgmt_tx_cancel(psoc, vdev, cookie));
+}