1/*
  2 * Blackfin On-Chip MAC Driver
  3 *
  4 * Copyright 2004-2007 Analog Devices Inc.
  5 *
  6 * Enter bugs at http://blackfin.uclinux.org/
  7 *
  8 * Licensed under the GPL-2 or later.
  9 */
 10#ifndef _BFIN_MAC_H_
 11#define _BFIN_MAC_H_
 12
 13#include <linux/net_tstamp.h>
 14#include <linux/clocksource.h>
 15#include <linux/timecompare.h>
 16#include <linux/timer.h>
 17#include <linux/etherdevice.h>
 18#include <linux/bfin_mac.h>
 19
 20/*
 21 * Disable hardware checksum for bug #5600 if writeback cache is
 22 * enabled. Otherwize, corrupted RX packet will be sent up stack
 23 * without error mark.
 24 */
 25#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
 26#define BFIN_MAC_CSUM_OFFLOAD
 27#endif
 28
 29#define TX_RECLAIM_JIFFIES (HZ / 5)
 30
 31struct dma_descriptor {
 32	struct dma_descriptor *next_dma_desc;
 33	unsigned long start_addr;
 34	unsigned short config;
 35	unsigned short x_count;
 36};
 37
 38struct status_area_rx {
 39#if defined(BFIN_MAC_CSUM_OFFLOAD)
 40	unsigned short ip_hdr_csum;	/* ip header checksum */
 41	/* ip payload(udp or tcp or others) checksum */
 42	unsigned short ip_payload_csum;
 43#endif
 44	unsigned long status_word;	/* the frame status word */
 45};
 46
 47struct status_area_tx {
 48	unsigned long status_word;	/* the frame status word */
 49};
 50
 51/* use two descriptors for a packet */
 52struct net_dma_desc_rx {
 53	struct net_dma_desc_rx *next;
 54	struct sk_buff *skb;
 55	struct dma_descriptor desc_a;
 56	struct dma_descriptor desc_b;
 57	struct status_area_rx status;
 58};
 59
 60/* use two descriptors for a packet */
 61struct net_dma_desc_tx {
 62	struct net_dma_desc_tx *next;
 63	struct sk_buff *skb;
 64	struct dma_descriptor desc_a;
 65	struct dma_descriptor desc_b;
 66	unsigned char packet[1560];
 67	struct status_area_tx status;
 68};
 69
 70struct bfin_mac_local {
 71	/*
 72	 * these are things that the kernel wants me to keep, so users
 73	 * can find out semi-useless statistics of how well the card is
 74	 * performing
 75	 */
 76	struct net_device_stats stats;
 77
 78	spinlock_t lock;
 79
 80	int wol;		/* Wake On Lan */
 81	int irq_wake_requested;
 82	struct timer_list tx_reclaim_timer;
 83	struct net_device *ndev;
 84
 85	/* Data for EMAC_VLAN1 regs */
 86	u16 vlan1_mask, vlan2_mask;
 87
 88	/* MII and PHY stuffs */
 89	int old_link;          /* used by bf537_adjust_link */
 90	int old_speed;
 91	int old_duplex;
 92
 93	struct phy_device *phydev;
 94	struct mii_bus *mii_bus;
 95
 96#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
 97	struct cyclecounter cycles;
 98	struct timecounter clock;
 99	struct timecompare compare;
100	struct hwtstamp_config stamp_cfg;
101#endif
102};
103
104extern void bfin_get_ether_addr(char *addr);
105
106#endif