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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/fec_8xx/fec_8xx.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'drivers/net/fec_8xx/fec_8xx.h')
-rw-r--r--drivers/net/fec_8xx/fec_8xx.h218
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 0000000..5af60b0
--- /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
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