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Diffstat (limited to 'drivers/net/tulip/tulip.h')
| -rw-r--r-- | drivers/net/tulip/tulip.h | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h new file mode 100644 index 000000000..3642a13b4 --- /dev/null +++ b/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__ */ |