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/*
* drivers/net/netarmeth.h
*
* Copyright (C) 2000 NETsilicon, Inc.
* Copyright (C) 2000 WireSpeed Communications Corporation
* Copyright (C) 2001 IMMS gGmbH
*
* This software is copyrighted by WireSpeed. LICENSEE agrees that
* it will not delete this copyright notice, trademarks or protective
* notices from any copy made by LICENSEE.
*
* This software is provided "AS-IS" and any express or implied
* warranties or conditions, including but not limited to any
* implied warranties of merchantability and fitness for a particular
* purpose regarding this software. In no event shall WireSpeed
* be liable for any indirect, consequential, or incidental damages,
* loss of profits or revenue, loss of use or data, or interruption
* of business, whether the alleged damages are labeled in contract,
* tort, or indemnity.
*
* 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.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* author(s) : Jackie Smith Cashion and David Smith
* Rolf Peukert (Linux Kernel 2.4.x adaption)
*/
#undef NA_DEBUG
// #define NA_DEBUG 1
#ifdef NA_DEBUG
#define NA_PRINTK(fmt, arg...) printk(KERN_INFO fmt, ##arg)
#else
#define NA_PRINTK(fmt, arg...)
#endif
#if (NA_DEBUG > 1)
#define NA_PRINTK2(fmt, arg...) printk(KERN_INFO fmt, ##arg)
#else
#define NA_PRINTK2(fmt, arg...)
#endif
#if (NA_DEBUG > 2)
#define NA_PRINTK3(fmt, arg...) printk(KERN_INFO fmt, ##arg)
#else
#define NA_PRINTK3(fmt, arg...)
#endif
// DMA Buffer Descriptor
struct na_dma_buf_desc {
unsigned long src_buf_ptr; // Source Buffer Pointer (actually bits 0:28)
unsigned short buf_len; // Buffer Length (actually bits 0:14)
unsigned short stat; // Status (bits 16:31)
};
// Ethernet Receive Status Register in DMA Buffer Descriptor Status Field
#define NA_RXSTAT_ERR_MASK 0x07E0 // Error Mask
#define NA_RXSTAT_RXOK 0x2000 // Receive Packet OK
#define NA_RXSTAT_ROVER 0x0020 // Receive Overflow (Overrun)
// General Purpose Definitions
#define NA_TRUE 1
#define NA_FALSE 0
#define NA_10MBPS 0
#define NA_100MBPS 1
#define NA_LEFT 0
#define NA_RIGHT 1
#define NA_POLYNOMIAL 0x4c11db6L
#define NA_MAX_ETH_FRAME 1526
#define NA_MAX_ETH_FRAME_ALIGN (NA_MAX_ETH_FRAME + (NA_MAX_ETH_FRAME % 32))
#define NA_MAX_TX_BUF 1
//#define NA_MAX_RX_BUF 8
#define NA_MAX_RX_BUF 24
#define NA_MAX_MCA 64 // Maximum number of multicast addresses in hash table
// MII polling timeout value
// jiffies = number of 100 Hz ticks (1/100 seconds) since system boot
#define NA_MII_POLL_BUSY_DELAY 100 // 100 jiffies = 1 second
// MII negotiation timeout value
#define NA_MII_NEGOTIATE_DELAY 500 // 500 jiffies = 5 seconds
/* Type of the PHY chip attached to the NetARM */
typedef enum {NA_ENABLE_PHY, NA_LEVEL1_PHY, NA_HOME_PHY} na_phy_type;
// NET+ARM Ethernet Driver Private Data
struct netarmeth_dev {
unsigned long media_100BaseT; // NA_10MBPS or NA_100MBPS
struct na_dma_buf_desc tx_dma_desc;
struct na_dma_buf_desc rx_dma_desc[NA_MAX_RX_BUF];
int rx_sw_index;
struct sk_buff *tx_skb;
struct sk_buff_head tx_skb_queue;
struct sk_buff *rx_skb[NA_MAX_RX_BUF];
struct net_device_stats stats;
struct timer_list rx_fifo_timer;
int rx_fifo_packets;
/* Low-level status flags: */
unsigned long tbusy; /* transmitter busy (must be long for bitops) */
volatile unsigned char start, /* start an operation */
rx_interrupt, /* receive interrupt arrived */
tx_interrupt; /* transmit interrupt arrived */
na_phy_type phy_type; /* identified PHY chip */
};
/*
* Translated address IO functions
*
* IO address has already been translated to a virtual address
*/
#define outb_t(v,p) (*(volatile unsigned char *)(p) = (v))
#define outw_t(v,p) (*(volatile unsigned short *)(p) = (v))
#define outl_t(v,p) (*(volatile unsigned long *)(p) = (v))
#define inb_t(p) (*(volatile unsigned char *)(p))
#define inw_t(p) (*(volatile unsigned short *)(p))
#define inl_t(p) (*(volatile unsigned long *)(p))
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