diff options
Diffstat (limited to 'drivers/net/fec_8xx/fec_8xx.h')
| -rw-r--r-- | drivers/net/fec_8xx/fec_8xx.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/drivers/net/fec_8xx/fec_8xx.h b/drivers/net/fec_8xx/fec_8xx.h new file mode 100644 index 000000000000..5af60b0f9208 --- /dev/null +++ b/drivers/net/fec_8xx/fec_8xx.h @@ -0,0 +1,218 @@ +#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 |