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linux/drivers/net/fec_8xx/fec_8xx.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2 
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

218 lines
7.4 KiB
C
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#ifndef FEC_8XX_H
#define FEC_8XX_H
#include <linux/mii.h>
#include <linux/netdevice.h>
#include <linux/types.h>
/* HW info */
/* CRC polynomium used by the FEC for the multicast group filtering */
#define FEC_CRC_POLY 0x04C11DB7
#define MII_ADVERTISE_HALF (ADVERTISE_100HALF | \
ADVERTISE_10HALF | ADVERTISE_CSMA)
#define MII_ADVERTISE_ALL (ADVERTISE_100FULL | \
ADVERTISE_10FULL | MII_ADVERTISE_HALF)
/* Interrupt events/masks.
*/
#define FEC_ENET_HBERR 0x80000000U /* Heartbeat error */
#define FEC_ENET_BABR 0x40000000U /* Babbling receiver */
#define FEC_ENET_BABT 0x20000000U /* Babbling transmitter */
#define FEC_ENET_GRA 0x10000000U /* Graceful stop complete */
#define FEC_ENET_TXF 0x08000000U /* Full frame transmitted */
#define FEC_ENET_TXB 0x04000000U /* A buffer was transmitted */
#define FEC_ENET_RXF 0x02000000U /* Full frame received */
#define FEC_ENET_RXB 0x01000000U /* A buffer was received */
#define FEC_ENET_MII 0x00800000U /* MII interrupt */
#define FEC_ENET_EBERR 0x00400000U /* SDMA bus error */
#define FEC_ECNTRL_PINMUX 0x00000004
#define FEC_ECNTRL_ETHER_EN 0x00000002
#define FEC_ECNTRL_RESET 0x00000001
#define FEC_RCNTRL_BC_REJ 0x00000010
#define FEC_RCNTRL_PROM 0x00000008
#define FEC_RCNTRL_MII_MODE 0x00000004
#define FEC_RCNTRL_DRT 0x00000002
#define FEC_RCNTRL_LOOP 0x00000001
#define FEC_TCNTRL_FDEN 0x00000004
#define FEC_TCNTRL_HBC 0x00000002
#define FEC_TCNTRL_GTS 0x00000001
/* values for MII phy_status */
#define PHY_CONF_ANE 0x0001 /* 1 auto-negotiation enabled */
#define PHY_CONF_LOOP 0x0002 /* 1 loopback mode enabled */
#define PHY_CONF_SPMASK 0x00f0 /* mask for speed */
#define PHY_CONF_10HDX 0x0010 /* 10 Mbit half duplex supported */
#define PHY_CONF_10FDX 0x0020 /* 10 Mbit full duplex supported */
#define PHY_CONF_100HDX 0x0040 /* 100 Mbit half duplex supported */
#define PHY_CONF_100FDX 0x0080 /* 100 Mbit full duplex supported */
#define PHY_STAT_LINK 0x0100 /* 1 up - 0 down */
#define PHY_STAT_FAULT 0x0200 /* 1 remote fault */
#define PHY_STAT_ANC 0x0400 /* 1 auto-negotiation complete */
#define PHY_STAT_SPMASK 0xf000 /* mask for speed */
#define PHY_STAT_10HDX 0x1000 /* 10 Mbit half duplex selected */
#define PHY_STAT_10FDX 0x2000 /* 10 Mbit full duplex selected */
#define PHY_STAT_100HDX 0x4000 /* 100 Mbit half duplex selected */
#define PHY_STAT_100FDX 0x8000 /* 100 Mbit full duplex selected */
typedef struct phy_info {
unsigned int id;
const char *name;
void (*startup) (struct net_device * dev);
void (*shutdown) (struct net_device * dev);
void (*ack_int) (struct net_device * dev);
} phy_info_t;
/* The FEC stores dest/src/type, data, and checksum for receive packets.
*/
#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */
#define MIN_MTU 46 /* this is data size */
#define CRC_LEN 4
#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN)
#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN)
/* Must be a multiple of 4 */
#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE+3) & ~3)
/* This is needed so that invalidate_xxx wont invalidate too much */
#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
/* platform interface */
struct fec_platform_info {
int fec_no; /* FEC index */
int use_mdio; /* use external MII */
int phy_addr; /* the phy address */
int fec_irq, phy_irq; /* the irq for the controller */
int rx_ring, tx_ring; /* number of buffers on rx */
int sys_clk; /* system clock */
__u8 macaddr[6]; /* mac address */
int rx_copybreak; /* limit we copy small frames */
int use_napi; /* use NAPI */
int napi_weight; /* NAPI weight */
};
/* forward declaration */
struct fec;
struct fec_enet_private {
spinlock_t lock; /* during all ops except TX pckt processing */
spinlock_t tx_lock; /* during fec_start_xmit and fec_tx */
int fecno;
struct fec *fecp;
const struct fec_platform_info *fpi;
int rx_ring, tx_ring;
dma_addr_t ring_mem_addr;
void *ring_base;
struct sk_buff **rx_skbuff;
struct sk_buff **tx_skbuff;
cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */
cbd_t *tx_bd_base;
cbd_t *dirty_tx; /* ring entries to be free()ed. */
cbd_t *cur_rx;
cbd_t *cur_tx;
int tx_free;
struct net_device_stats stats;
struct timer_list phy_timer_list;
const struct phy_info *phy;
unsigned int fec_phy_speed;
__u32 msg_enable;
struct mii_if_info mii_if;
};
/***************************************************************************/
void fec_restart(struct net_device *dev, int duplex, int speed);
void fec_stop(struct net_device *dev);
/***************************************************************************/
int fec_mii_read(struct net_device *dev, int phy_id, int location);
void fec_mii_write(struct net_device *dev, int phy_id, int location, int value);
int fec_mii_phy_id_detect(struct net_device *dev);
void fec_mii_startup(struct net_device *dev);
void fec_mii_shutdown(struct net_device *dev);
void fec_mii_ack_int(struct net_device *dev);
void fec_mii_link_status_change_check(struct net_device *dev, int init_media);
/***************************************************************************/
#define FEC1_NO 0x00
#define FEC2_NO 0x01
#define FEC3_NO 0x02
int fec_8xx_init_one(const struct fec_platform_info *fpi,
struct net_device **devp);
int fec_8xx_cleanup_one(struct net_device *dev);
/***************************************************************************/
#define DRV_MODULE_NAME "fec_8xx"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "0.1"
#define DRV_MODULE_RELDATE "May 6, 2004"
/***************************************************************************/
int fec_8xx_platform_init(void);
void fec_8xx_platform_cleanup(void);
/***************************************************************************/
/* FEC access macros */
#if defined(CONFIG_8xx)
/* for a 8xx __raw_xxx's are sufficient */
#define __fec_out32(addr, x) __raw_writel(x, addr)
#define __fec_out16(addr, x) __raw_writew(x, addr)
#define __fec_in32(addr) __raw_readl(addr)
#define __fec_in16(addr) __raw_readw(addr)
#else
/* for others play it safe */
#define __fec_out32(addr, x) out_be32(addr, x)
#define __fec_out16(addr, x) out_be16(addr, x)
#define __fec_in32(addr) in_be32(addr)
#define __fec_in16(addr) in_be16(addr)
#endif
/* write */
#define FW(_fecp, _reg, _v) __fec_out32(&(_fecp)->fec_ ## _reg, (_v))
/* read */
#define FR(_fecp, _reg) __fec_in32(&(_fecp)->fec_ ## _reg)
/* set bits */
#define FS(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) | (_v))
/* clear bits */
#define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v))
/* buffer descriptor access macros */
/* write */
#define CBDW_SC(_cbd, _sc) __fec_out16(&(_cbd)->cbd_sc, (_sc))
#define CBDW_DATLEN(_cbd, _datlen) __fec_out16(&(_cbd)->cbd_datlen, (_datlen))
#define CBDW_BUFADDR(_cbd, _bufaddr) __fec_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
/* read */
#define CBDR_SC(_cbd) __fec_in16(&(_cbd)->cbd_sc)
#define CBDR_DATLEN(_cbd) __fec_in16(&(_cbd)->cbd_datlen)
#define CBDR_BUFADDR(_cbd) __fec_in32(&(_cbd)->cbd_bufaddr)
/* set bits */
#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
/* clear bits */
#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
/***************************************************************************/
#endif
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