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/*
* IXP2000 MSF network device driver
* Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
* Dedicated to Marija Kulikova.
*
* 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.
*/
#ifndef __IXPDEV_PRIV_H
#define __IXPDEV_PRIV_H
#define RX_BUF_DESC_BASE 0x00001000
#define RX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_rx_desc)))
#define TX_BUF_DESC_BASE 0x00002000
#define TX_BUF_COUNT ((3 * PAGE_SIZE) / (4 * sizeof(struct ixpdev_tx_desc)))
#define TX_BUF_COUNT_PER_CHAN (TX_BUF_COUNT / 4)
#define RING_RX_PENDING ((u32 *)IXP2000_SCRATCH_RING_VIRT_BASE)
#define RING_RX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 4))
#define RING_TX_PENDING ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 8))
#define RING_TX_DONE ((u32 *)(IXP2000_SCRATCH_RING_VIRT_BASE + 12))
#define SCRATCH_REG(x) ((u32 *)(IXP2000_GLOBAL_REG_VIRT_BASE | 0x0800 | (x)))
#define RING_RX_PENDING_BASE SCRATCH_REG(0x00)
#define RING_RX_PENDING_HEAD SCRATCH_REG(0x04)
#define RING_RX_PENDING_TAIL SCRATCH_REG(0x08)
#define RING_RX_DONE_BASE SCRATCH_REG(0x10)
#define RING_RX_DONE_HEAD SCRATCH_REG(0x14)
#define RING_RX_DONE_TAIL SCRATCH_REG(0x18)
#define RING_TX_PENDING_BASE SCRATCH_REG(0x20)
#define RING_TX_PENDING_HEAD SCRATCH_REG(0x24)
#define RING_TX_PENDING_TAIL SCRATCH_REG(0x28)
#define RING_TX_DONE_BASE SCRATCH_REG(0x30)
#define RING_TX_DONE_HEAD SCRATCH_REG(0x34)
#define RING_TX_DONE_TAIL SCRATCH_REG(0x38)
struct ixpdev_rx_desc
{
u32 buf_addr;
u32 buf_length;
u32 channel;
u32 pkt_length;
};
struct ixpdev_tx_desc
{
u32 buf_addr;
u32 pkt_length;
u32 channel;
u32 unused;
};
#endif
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