/*
 * Copyright (c) 2015-2016 Quantenna Communications, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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.
 *
 */

#ifndef _QTN_FMAC_PCIE_H_
#define _QTN_FMAC_PCIE_H_

#include <linux/dma-mapping.h>
#include <linux/io.h>

#include "pcie_regs_pearl.h"
#include "pcie_ipc.h"
#include "shm_ipc.h"

struct bus;

struct qtnf_pcie_bus_priv {
	struct pci_dev  *pdev;

	/* lock for irq configuration changes */
	spinlock_t irq_lock;

	/* lock for tx reclaim operations */
	spinlock_t tx_reclaim_lock;
	/* lock for tx0 operations */
	spinlock_t tx0_lock;
	u8 msi_enabled;
	u8 tx_stopped;
	int mps;

	struct workqueue_struct *workqueue;
	struct tasklet_struct reclaim_tq;

	void __iomem *sysctl_bar;
	void __iomem *epmem_bar;
	void __iomem *dmareg_bar;

	struct qtnf_shm_ipc shm_ipc_ep_in;
	struct qtnf_shm_ipc shm_ipc_ep_out;

	struct qtnf_pcie_bda __iomem *bda;
	void __iomem *pcie_reg_base;

	u16 tx_bd_num;
	u16 rx_bd_num;

	struct sk_buff **tx_skb;
	struct sk_buff **rx_skb;

	struct qtnf_tx_bd *tx_bd_vbase;
	dma_addr_t tx_bd_pbase;

	struct qtnf_rx_bd *rx_bd_vbase;
	dma_addr_t rx_bd_pbase;

	dma_addr_t bd_table_paddr;
	void *bd_table_vaddr;
	u32 bd_table_len;

	u32 rx_bd_w_index;
	u32 rx_bd_r_index;

	u32 tx_bd_w_index;
	u32 tx_bd_r_index;

	u32 pcie_irq_mask;

	/* diagnostics stats */
	u32 pcie_irq_count;
	u32 pcie_irq_rx_count;
	u32 pcie_irq_tx_count;
	u32 pcie_irq_uf_count;
	u32 tx_full_count;
	u32 tx_done_count;
	u32 tx_reclaim_done;
	u32 tx_reclaim_req;
};

#endif /* _QTN_FMAC_PCIE_H_ */