qcacmn: Global lmac_if

Add global lmac interface which can be used by all the
modules parallel to UMAC to communicate with LMAC

Change-Id: Iaf121c7411a22e3697881405360caa5dc745298a
CRs-Fixed: 2006686

global_lmac_if/inc/wlan_global_lmac_if_api.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2016-2017 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.
+ */
+
+#ifndef _WLAN_GLOBAL_LMAC_IF_API_H_
+#define _WLAN__GLOBAL_LMAC_IF_API_H_
+
+#include "wlan_objmgr_cmn.h"
+#include "wlan_objmgr_psoc_obj.h"
+
+/**
+ * wlan_global_lmac_if_open() - global lmac_if open
+ * @psoc: psoc context
+ *
+ * Opens up lmac_if southbound layer. This function calls OL,DA and UMAC
+ * modules to register respective tx and rx callbacks.
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS wlan_global_lmac_if_open(struct wlan_objmgr_psoc *psoc);
+
+/**
+ * wlan_global_lmac_if_rx_ops_register() - UMAC rx handler register
+ * @rx_ops: Pointer to rx_ops structure to be populated
+ *
+ * Register umac RX callabacks which will be called by DA/OL/WMA/WMI
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_global_lmac_if_rx_ops_register
+		(struct wlan_lmac_if_rx_ops *rx_ops);
+
+/**
+ * wlan_global_lmac_if_close() - Close global lmac_if
+ * @psoc: psoc context
+ *
+ * Deregister global lmac_if TX and RX handlers
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_global_lmac_if_close(struct wlan_objmgr_psoc *psoc);
+
+/**
+ * wlan_global_lmac_if_set_txops_registration_cb() -tx
+ * registration callback assignment
+ * @dev_type: Dev type can be either Direct attach or Offload
+ * @handler: handler to be called for LMAC tx ops registration
+ *
+ * API to assign appropriate tx registration callback handler based on the
+ * device type(Offload or Direct attach)
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_global_lmac_if_set_txops_registration_cb(WLAN_DEV_TYPE dev_type,
+		QDF_STATUS (*handler)(struct wlan_lmac_if_tx_ops *));
+
+#endif /* _WLAN_LMAC_IF_API_H */

global_lmac_if/src/wlan_global_lmac_if.c

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2016-2017 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.
+ */
+
+#include "qdf_mem.h"
+#include "wlan_lmac_if_def.h"
+#include "wlan_lmac_if_api.h"
+#include "wlan_global_lmac_if_api.h"
+
+/* Function pointer to call DA/OL specific tx_ops registration function */
+QDF_STATUS (*wlan_global_lmac_if_tx_ops_register[MAX_DEV_TYPE])
+				(struct wlan_lmac_if_tx_ops *tx_ops);
+
+/**
+ * wlan_global_lmac_if_rx_ops_register() - Global lmac_if
+ * rx handler register
+ * @rx_ops: Pointer to rx_ops structure to be populated
+ *
+ * Register lmac_if RX callabacks which will be called by DA/OL/WMA/WMI
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS
+wlan_global_lmac_if_rx_ops_register(struct wlan_lmac_if_rx_ops *rx_ops)
+{
+	/*
+	 * Component specific public api's to be called to register
+	 * respective callbacks
+	 * Ex: rx_ops->fp = function;
+	 */
+	if (!rx_ops) {
+		qdf_print("%s: lmac if rx ops pointer is NULL", __func__);
+		return QDF_STATUS_E_INVAL;
+	}
+	/* Registeration for UMAC componets */
+	wlan_lmac_if_umac_rx_ops_register(rx_ops);
+
+	/* Registeration for componets outside UMAC */
+
+	return QDF_STATUS_SUCCESS;
+}
+
+/**
+ * wlan_global_lmac_if_open() - global lmac_if open
+ * @psoc: psoc context
+ *
+ * Opens up lmac_if southbound layer. This function calls OL,DA and UMAC
+ * modules to register respective tx and rx callbacks.
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS wlan_global_lmac_if_open(struct wlan_objmgr_psoc *psoc)
+{
+	WLAN_DEV_TYPE dev_type;
+
+	dev_type = psoc->soc_nif.phy_type;
+
+	if (dev_type == WLAN_DEV_DA || dev_type == WLAN_DEV_OL) {
+		wlan_global_lmac_if_tx_ops_register[dev_type]
+					(&psoc->soc_cb.tx_ops);
+	} else {
+		/* Control should ideally not reach here */
+		qdf_print("Invalid device type");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	/* Function call to register rx-ops handlers */
+	wlan_global_lmac_if_rx_ops_register(&psoc->soc_cb.rx_ops);
+
+	return QDF_STATUS_SUCCESS;
+}
+EXPORT_SYMBOL(wlan_global_lmac_if_open);
+
+/**
+ * wlan_global_lmac_if_close() - Close global lmac_if
+ * @psoc: psoc context
+ *
+ * Deregister lmac_if TX and RX handlers
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_global_lmac_if_close(struct wlan_objmgr_psoc *psoc)
+{
+	qdf_mem_set(&psoc->soc_cb.tx_ops, 0, sizeof(psoc->soc_cb.tx_ops));
+	qdf_mem_set(&psoc->soc_cb.rx_ops, 0, sizeof(psoc->soc_cb.rx_ops));
+
+	return QDF_STATUS_SUCCESS;
+}
+EXPORT_SYMBOL(wlan_global_lmac_if_close);
+
+/**
+ * wlan_global_lmac_if_set_txops_registration_cb() - tx
+ * registration callback assignment
+ * @dev_type: Dev type can be either Direct attach or Offload
+ * @handler: handler to be called for LMAC tx ops registration
+ *
+ * API to assign appropriate tx registration callback handler based on the
+ * device type(Offload or Direct attach)
+ *
+ * Return: QDF_STATUS_SUCCESS - in case of success
+ */
+QDF_STATUS wlan_global_lmac_if_set_txops_registration_cb(WLAN_DEV_TYPE dev_type,
+			QDF_STATUS (*handler)(struct wlan_lmac_if_tx_ops *))
+{
+	wlan_global_lmac_if_tx_ops_register[dev_type] = handler;
+
+	return QDF_STATUS_SUCCESS;
+}
+EXPORT_SYMBOL(wlan_global_lmac_if_set_txops_registration_cb);