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/ptp_clock_kernel.h>
 15#include <linux/timer.h>
 16#include <linux/etherdevice.h>
 17#include <linux/bfin_mac.h>
 18
 19/*
 20 * Disable hardware checksum for bug #5600 if writeback cache is
 21 * enabled. Otherwize, corrupted RX packet will be sent up stack
 22 * without error mark.
 23 */
 24#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
 25#define BFIN_MAC_CSUM_OFFLOAD
 26#endif
 27
 28#define TX_RECLAIM_JIFFIES (HZ / 5)
 29
 30struct dma_descriptor {
 31	struct dma_descriptor *next_dma_desc;
 32	unsigned long start_addr;
 33	unsigned short config;
 34	unsigned short x_count;
 35};
 36
 37struct status_area_rx {
 38#if defined(BFIN_MAC_CSUM_OFFLOAD)
 39	unsigned short ip_hdr_csum;	/* ip header checksum */
 40	/* ip payload(udp or tcp or others) checksum */
 41	unsigned short ip_payload_csum;
 42#endif
 43	unsigned long status_word;	/* the frame status word */
 44};
 45
 46struct status_area_tx {
 47	unsigned long status_word;	/* the frame status word */
 48};
 49
 50/* use two descriptors for a packet */
 51struct net_dma_desc_rx {
 52	struct net_dma_desc_rx *next;
 53	struct sk_buff *skb;
 54	struct dma_descriptor desc_a;
 55	struct dma_descriptor desc_b;
 56	struct status_area_rx status;
 57};
 58
 59/* use two descriptors for a packet */
 60struct net_dma_desc_tx {
 61	struct net_dma_desc_tx *next;
 62	struct sk_buff *skb;
 63	struct dma_descriptor desc_a;
 64	struct dma_descriptor desc_b;
 65	unsigned char packet[1560];
 66	struct status_area_tx status;
 67};
 68
 69struct bfin_mac_local {
 70	/*
 71	 * these are things that the kernel wants me to keep, so users
 72	 * can find out semi-useless statistics of how well the card is
 73	 * performing
 74	 */
 75	struct net_device_stats stats;
 76
 77	spinlock_t lock;
 78
 79	int wol;		/* Wake On Lan */
 80	int irq_wake_requested;
 81	struct timer_list tx_reclaim_timer;
 82	struct net_device *ndev;
 83
 84	/* Data for EMAC_VLAN1 regs */
 85	u16 vlan1_mask, vlan2_mask;
 86
 87	/* MII and PHY stuffs */
 88	int old_link;          /* used by bf537_adjust_link */
 89	int old_speed;
 90	int old_duplex;
 91
 92	struct phy_device *phydev;
 93	struct mii_bus *mii_bus;
 94
 95#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
 96	u32 addend;
 97	unsigned int shift;
 98	s32 max_ppb;
 99	struct hwtstamp_config stamp_cfg;
100	struct ptp_clock_info caps;
101	struct ptp_clock *clock;
102	int phc_index;
103	spinlock_t phc_lock; /* protects time lo/hi registers */
104#endif
105};
106
107int bfin_get_ether_addr(char *addr);
108
109#endif