patch-2.3.48 linux/drivers/net/tulip/tulip.h

• Lines: 343
• Date: Fri Feb 25 15:16:37 2000
• Orig file: v2.3.47/linux/drivers/net/tulip/tulip.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.47/linux/drivers/net/tulip/tulip.h linux/drivers/net/tulip/tulip.h
@@ -0,0 +1,342 @@
+/*
+	drivers/net/tulip/tulip.h
+
+	Copyright 2000  The Linux Kernel Team
+	Written/copyright 1994-1999 by Donald Becker.
+
+	This software may be used and distributed according to the terms
+	of the GNU Public License, incorporated herein by reference.
+
+*/
+
+#ifndef __NET_TULIP_H__
+#define __NET_TULIP_H__
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/timer.h>
+
+
+struct tulip_chip_table {
+	char *chip_name;
+	int io_size;
+	int valid_intrs;	/* CSR7 interrupt enable settings */
+	int flags;
+	void (*media_timer) (unsigned long data);
+};
+
+
+enum tbl_flag {
+	HAS_MII = 1,
+	HAS_MEDIA_TABLE = 2,
+	CSR12_IN_SROM = 4,
+	ALWAYS_CHECK_MII = 8,
+	HAS_ACPI = 0x10,
+	MC_HASH_ONLY = 0x20,	/* Hash-only multicast filter. */
+	HAS_PNICNWAY = 0x80,
+	HAS_NWAY143 = 0x40,	/* Uses internal NWay xcvr. */
+	HAS_8023X = 0x100,
+};
+
+
+/* chip types.  careful!  order is VERY IMPORTANT here, as these
+ * are used throughout the driver as indices into arrays */
+/* Note 21142 == 21143. */
+enum chips {
+	DC21040 = 0,
+	DC21041 = 1,
+	DC21140 = 2,
+	DC21142 = 3, DC21143 = 3,
+	LC82C168,
+	NGMC169,
+	MX98713,
+	MX98715,
+	MX98725,
+	AX88140,
+	PNIC2,
+	COMET,
+	COMPEX9881,
+	I21145,
+	X3201_3,
+};
+
+
+enum MediaIs {
+	MediaIsFD = 1,
+	MediaAlwaysFD = 2,
+	MediaIsMII = 4,
+	MediaIsFx = 8,
+	MediaIs100 = 16
+};
+
+
+/* Offsets to the Command and Status Registers, "CSRs".  All accesses
+   must be longword instructions and quadword aligned. */
+enum tulip_offsets {
+	CSR0 = 0,
+	CSR1 = 0x08,
+	CSR2 = 0x10,
+	CSR3 = 0x18,
+	CSR4 = 0x20,
+	CSR5 = 0x28,
+	CSR6 = 0x30,
+	CSR7 = 0x38,
+	CSR8 = 0x40,
+	CSR9 = 0x48,
+	CSR10 = 0x50,
+	CSR11 = 0x58,
+	CSR12 = 0x60,
+	CSR13 = 0x68,
+	CSR14 = 0x70,
+	CSR15 = 0x78
+};
+
+
+/* The bits in the CSR5 status registers, mostly interrupt sources. */
+enum status_bits {
+	TimerInt = 0x800,
+	SytemError = 0x2000,
+	TPLnkFail = 0x1000,
+	TPLnkPass = 0x10,
+	NormalIntr = 0x10000,
+	AbnormalIntr = 0x8000,
+	RxJabber = 0x200,
+	RxDied = 0x100,
+	RxNoBuf = 0x80,
+	RxIntr = 0x40,
+	TxFIFOUnderflow = 0x20,
+	TxJabber = 0x08,
+	TxNoBuf = 0x04,
+	TxDied = 0x02,
+	TxIntr = 0x01,
+};
+
+
+/* The Tulip Rx and Tx buffer descriptors. */
+struct tulip_rx_desc {
+	s32 status;
+	s32 length;
+	u32 buffer1;
+	u32 buffer2;
+};
+
+
+struct tulip_tx_desc {
+	s32 status;
+	s32 length;
+	u32 buffer1;
+	u32 buffer2;		/* We use only buffer 1.  */
+};
+
+
+enum desc_status_bits {
+	DescOwned = 0x80000000,
+	RxDescFatalErr = 0x8000,
+	RxWholePkt = 0x0300,
+};
+
+
+/* Keep the ring sizes a power of two for efficiency.
+   Making the Tx ring too large decreases the effectiveness of channel
+   bonding and packet priority.
+   There are no ill effects from too-large receive rings. */
+#define TX_RING_SIZE	16
+#define RX_RING_SIZE	32
+
+
+#define PKT_BUF_SZ		1536	/* Size of each temporary Rx buffer. */
+
+
+/* Ring-wrap flag in length field, use for last ring entry.
+	0x01000000 means chain on buffer2 address,
+	0x02000000 means use the ring start address in CSR2/3.
+   Note: Some work-alike chips do not function correctly in chained mode.
+   The ASIX chip works only in chained mode.
+   Thus we indicates ring mode, but always write the 'next' field for
+   chained mode as well.
+*/
+#define DESC_RING_WRAP 0x02000000
+
+
+/*  EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK	0x02	/* EEPROM shift clock. */
+#define EE_CS			0x01	/* EEPROM chip select. */
+#define EE_DATA_WRITE	0x04	/* Data from the Tulip to EEPROM. */
+#define EE_WRITE_0		0x01
+#define EE_WRITE_1		0x05
+#define EE_DATA_READ	0x08	/* Data from the EEPROM chip. */
+#define EE_ENB			(0x4800 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+   Even at 33Mhz current PCI implementations don't overrun the EEPROM clock.
+   We add a bus turn-around to insure that this remains true. */
+#define eeprom_delay()	inl(ee_addr)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_READ_CMD		(6)
+
+#define EEPROM_SIZE 128 	/* 2 << EEPROM_ADDRLEN */
+
+
+/* The maximum data clock rate is 2.5 Mhz.  The minimum timing is usually
+   met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+   "overclocking" issues or future 66Mhz PCI. */
+#define mdio_delay() inl(mdio_addr)
+
+/* Read and write the MII registers using software-generated serial
+   MDIO protocol.  It is just different enough from the EEPROM protocol
+   to not share code.  The maxium data clock rate is 2.5 Mhz. */
+#define MDIO_SHIFT_CLK	0x10000
+#define MDIO_DATA_WRITE0 0x00000
+#define MDIO_DATA_WRITE1 0x20000
+#define MDIO_ENB		0x00000		/* Ignore the 0x02000 databook setting. */
+#define MDIO_ENB_IN		0x40000
+#define MDIO_DATA_READ	0x80000
+
+
+#define RUN_AT(x) (jiffies + (x))
+
+
+#if defined(__i386__)			/* AKA get_unaligned() */
+#define get_u16(ptr) (*(u16 *)(ptr))
+#else
+#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
+#endif
+
+
+/* Condensed operations for readability. */
+#define virt_to_le32desc(addr)  cpu_to_le32(virt_to_bus(addr))
+#define le32desc_to_virt(addr)  bus_to_virt(le32_to_cpu(addr))
+
+
+struct medialeaf {
+	u8 type;
+	u8 media;
+	unsigned char *leafdata;
+};
+
+
+struct mediatable {
+	u16 defaultmedia;
+	u8 leafcount;
+	u8 csr12dir;		/* General purpose pin directions. */
+	unsigned has_mii:1;
+	unsigned has_nonmii:1;
+	unsigned has_reset:6;
+	u32 csr15dir;
+	u32 csr15val;		/* 21143 NWay setting. */
+	struct medialeaf mleaf[0];
+};
+
+
+struct mediainfo {
+	struct mediainfo *next;
+	int info_type;
+	int index;
+	unsigned char *info;
+};
+
+
+struct tulip_private {
+	const char *product_name;
+	struct net_device *next_module;
+	struct tulip_rx_desc rx_ring[RX_RING_SIZE];
+	struct tulip_tx_desc tx_ring[TX_RING_SIZE];
+	/* The saved address of a sent-in-place packet/buffer, for skfree(). */
+	struct sk_buff *tx_skbuff[TX_RING_SIZE];
+	/* The addresses of receive-in-place skbuffs. */
+	struct sk_buff *rx_skbuff[RX_RING_SIZE];
+	char *rx_buffs;		/* Address of temporary Rx buffers. */
+	u16 setup_frame[96];	/* Pseudo-Tx frame to init address table. */
+	int chip_id;
+	int revision;
+	int flags;
+	struct net_device_stats stats;
+	struct timer_list timer;	/* Media selection timer. */
+	spinlock_t lock;
+	unsigned int cur_rx, cur_tx;	/* The next free ring entry */
+	unsigned int dirty_rx, dirty_tx;	/* The ring entries to be free()ed. */
+	unsigned int tx_full:1;	/* The Tx queue is full. */
+	unsigned int full_duplex:1;	/* Full-duplex operation requested. */
+	unsigned int full_duplex_lock:1;
+	unsigned int fake_addr:1;	/* Multiport board faked address. */
+	unsigned int default_port:4;	/* Last dev->if_port value. */
+	unsigned int media2:4;	/* Secondary monitored media port. */
+	unsigned int medialock:1;	/* Don't sense media type. */
+	unsigned int mediasense:1;	/* Media sensing in progress. */
+	unsigned int nway:1, nwayset:1;		/* 21143 internal NWay. */
+	unsigned int csr0;	/* CSR0 setting. */
+	unsigned int csr6;	/* Current CSR6 control settings. */
+	unsigned char eeprom[EEPROM_SIZE];	/* Serial EEPROM contents. */
+	void (*link_change) (struct net_device * dev, int csr5);
+	u16 to_advertise;	/* NWay capabilities advertised.  */
+	u16 lpar;		/* 21143 Link partner ability. */
+	u16 advertising[4];
+	signed char phys[4], mii_cnt;	/* MII device addresses. */
+	struct mediatable *mtable;
+	int cur_index;		/* Current media index. */
+	int saved_if_port;
+	struct pci_dev *pdev;
+	int ttimer;
+	int susp_rx;
+	unsigned long nir;
+	unsigned long base_addr;
+	int pad0, pad1;		/* Used for 8-byte alignment */
+};
+
+
+struct eeprom_fixup {
+	char *name;
+	unsigned char addr0;
+	unsigned char addr1;
+	unsigned char addr2;
+	u16 newtable[32];	/* Max length below. */
+};
+
+
+/* 21142.c */
+extern u16 t21142_csr14[];
+void t21142_timer(unsigned long data);
+void t21142_start_nway(struct net_device *dev);
+void t21142_lnk_change(struct net_device *dev, int csr5);
+
+/* eeprom.c */
+void tulip_parse_eeprom(struct net_device *dev);
+int tulip_read_eeprom(long ioaddr, int location, int addr_len);
+
+/* interrupt.c */
+extern int tulip_max_interrupt_work;
+extern int tulip_rx_copybreak;
+void tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+
+/* media.c */
+int tulip_mdio_read(struct net_device *dev, int phy_id, int location);
+void tulip_mdio_write(struct net_device *dev, int phy_id, int location, int value);
+void tulip_select_media(struct net_device *dev, int startup);
+int tulip_check_duplex(struct net_device *dev);
+
+/* pnic.c */
+void pnic_do_nway(struct net_device *dev);
+void pnic_lnk_change(struct net_device *dev, int csr5);
+void pnic_timer(unsigned long data);
+
+/* timer.c */
+void tulip_timer(unsigned long data);
+void mxic_timer(unsigned long data);
+void comet_timer(unsigned long data);
+
+/* tulip_core.c */
+extern int tulip_debug;
+extern const char * const medianame[];
+extern const char tulip_media_cap[];
+extern struct tulip_chip_table tulip_tbl[];
+extern u8 t21040_csr13[];
+extern u16 t21041_csr13[];
+extern u16 t21041_csr14[];
+extern u16 t21041_csr15[];
+void tulip_outl_CSR6 (struct tulip_private *tp, u32 newcsr6);
+
+
+#endif /* __NET_TULIP_H__ */