/* lpal_api.c
 * Description: LitePath Callback Wrapper implementation
 *
 *
 * GPL LICENSE SUMMARY
 *
 *  Copyright(c) 2016 Intel Corporation.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of version 2 of the GNU General Public License as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 *  The full GNU General Public License is included in this distribution
 *  in the file called LICENSE.GPL.
 *
 *  Contact Information:
 *  Intel Corporation
 *  2200 Mission College Blvd.
 *  Santa Clara, CA  97052
 */

#include <net/lpal_api.h>

static struct ppa_lpal_cb g_lpal_cb;

int32_t ppa_litepath_ll_register(struct ppa_lpal_cb *lpcb, int flags)
{
	if (!lpcb) {
		/* LOG_ERROR("lpcb NULL !!\n"); */
		return PPA_FAILURE;
	} else if (flags == PPA_LPAL_F_REGISTER) {
		memcpy(&g_lpal_cb, lpcb, sizeof(g_lpal_cb));
	} else if (flags == PPA_LPAL_F_DEREGISTER) {
		memset(&g_lpal_cb, 0, sizeof(g_lpal_cb));
	} else {
		/*( LOG_ERROR("Invalid flags: 0x%X\n", flags); */
		return PPA_FAILURE;
	}

	return PPA_SUCCESS;
}
EXPORT_SYMBOL_GPL(ppa_litepath_ll_register);

/**
 * API for WiFi Driver to register/deregister with Puma Litepath
 *
 * @param Network Device sub-interface
 *
 * @param Network Device
 *
 * @param Pointer to Callback functions of the Network interface registered
 *
 * @param Flags associated with the network interface
 *
 * @return zero for success, non-zero for failure
 */
int32_t
ppa_drv_lpal_directpath_register(PPA_SUBIF *subif, PPA_NETIF *netif,
				 PPA_DIRECTPATH_CB *pDirectpathCb,
				 int32_t *index, uint32_t flags)
{
	if (!subif || !netif)
		return PPA_INVALID;

	if (g_lpal_cb.cb_register == NULL)
		return PPA_INVALID;

	return g_lpal_cb.cb_register(subif, netif, pDirectpathCb, index, flags);
}
EXPORT_SYMBOL_GPL(ppa_drv_lpal_directpath_register);

/**
 * API for WiFI Driver to send skb
 *
 * @param Network Device sub-interface
 *
 * @param Pointer to skb
 *
 * @param Length of skb
 *
 * @param Flags associated with the interface
 *
 * @return zero for success, non-zero for failure
 */
int32_t
ppa_drv_lpal_directpath_send(PPA_SUBIF *subif, struct sk_buff *skb,
			     int32_t len, uint32_t flags)
{
	if (!subif || !skb)
		return PPA_INVALID;

	if (g_lpal_cb.cb_send == NULL)
		return PPA_INVALID;

	return g_lpal_cb.cb_send(subif, skb, len, flags);
}
EXPORT_SYMBOL_GPL(ppa_drv_lpal_directpath_send);

/**
 * API for network interface flow control
 *
 * @param Network Device sub-interface
 *
 * @param Flags associated with the interface
 *
 * @return zero for success, non-zero for failure
 */
int32_t ppa_drv_lpal_directpath_flowctrl(PPA_SUBIF *subif, uint32_t flags)
{
	if (g_lpal_cb.cb_flowctrl == NULL)
		return PPA_INVALID;

	return g_lpal_cb.cb_flowctrl(subif, flags);
}
EXPORT_SYMBOL_GPL(ppa_drv_lpal_directpath_flowctrl);

/**
 * API for WiFI Driver to send skb
 *
 * @param Network Device sub-interface
 *
 * @param Length of skb
 *
 * @param Flags associated with the interface
 *
 * @return zero for success, non-zero for failure
 */
PPA_BUF *ppa_drv_lpal_directpath_alloc_skb(PPA_SUBIF *subif, int32_t len,
					   uint32_t flags)
{
	if (!subif)
		return (PPA_BUF *) PPA_INVALID;

	if (g_lpal_cb.cb_alloc_skb == NULL)
		return (PPA_BUF *) PPA_INVALID;

	return g_lpal_cb.cb_alloc_skb(subif, len, flags);
}
EXPORT_SYMBOL_GPL(ppa_drv_lpal_directpath_alloc_skb);

/**
 * API to recycle skb
 *
 * @param Network Device sub-interface
 *
 * @param Pointer to skb
 *
 * @param Flags associated with the interface
 *
 * @return zero for success, non-zero for failure
 */
int32_t
ppa_drv_lpal_directpath_recycle_skb(PPA_SUBIF *subif, PPA_BUF *skb,
				    uint32_t flags)
{
	if (g_lpal_cb.cb_recycle_skb == NULL)
		return PPA_INVALID;

	return g_lpal_cb.cb_recycle_skb(subif, skb, flags);
}
EXPORT_SYMBOL_GPL(ppa_drv_lpal_directpath_recycle_skb);

/**
 * API for WiFi Driver to enable/disable with Puma Litepath
 *
 * @param Network Device sub-interface
 *
 * @param enable_pdsp associated with the network interface
 *
 * @return zero for success, non-zero for failure
 */
int32_t
ppa_drv_lpal_directpath_enable_wifi_pdsp(PPA_SUBIF *subif, uint32_t enable_pdsp)
{
        if (!subif)
                return PPA_INVALID;

        if (g_lpal_cb.cb_wifi_pdsp == NULL){
                return PPA_INVALID;
        }

        return g_lpal_cb.cb_wifi_pdsp(subif, enable_pdsp);
}
EXPORT_SYMBOL_GPL(ppa_drv_lpal_directpath_enable_wifi_pdsp);