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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/au1000_eth.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
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!
Diffstat (limited to 'drivers/net/au1000_eth.h')
-rw-r--r--drivers/net/au1000_eth.h236
1 files changed, 236 insertions, 0 deletions
diff --git a/drivers/net/au1000_eth.h b/drivers/net/au1000_eth.h
new file mode 100644
index 000000000000..7f9326e39cc0
--- /dev/null
+++ b/drivers/net/au1000_eth.h
@@ -0,0 +1,236 @@
+/*
+ *
+ * Alchemy Au1x00 ethernet driver include file
+ *
+ * Author: Pete Popov <ppopov@mvista.com>
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ *
+ */
+
+
+#define MAC_IOSIZE 0x10000
+#define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */
+#define NUM_TX_DMA 4 /* Au1x00 has 4 tx hardware descriptors */
+
+#define NUM_RX_BUFFS 4
+#define NUM_TX_BUFFS 4
+#define MAX_BUF_SIZE 2048
+
+#define ETH_TX_TIMEOUT HZ/4
+#define MAC_MIN_PKT_SIZE 64
+
+#define MULTICAST_FILTER_LIMIT 64
+
+/* FIXME
+ * The PHY defines should be in a separate file.
+ */
+
+/* MII register offsets */
+#define MII_CONTROL 0x0000
+#define MII_STATUS 0x0001
+#define MII_PHY_ID0 0x0002
+#define MII_PHY_ID1 0x0003
+#define MII_ANADV 0x0004
+#define MII_ANLPAR 0x0005
+#define MII_AEXP 0x0006
+#define MII_ANEXT 0x0007
+#define MII_LSI_PHY_CONFIG 0x0011
+/* Status register */
+#define MII_LSI_PHY_STAT 0x0012
+#define MII_AMD_PHY_STAT MII_LSI_PHY_STAT
+#define MII_INTEL_PHY_STAT 0x0011
+
+#define MII_AUX_CNTRL 0x0018
+/* mii registers specific to AMD 79C901 */
+#define MII_STATUS_SUMMARY = 0x0018
+
+/* MII Control register bit definitions. */
+#define MII_CNTL_FDX 0x0100
+#define MII_CNTL_RST_AUTO 0x0200
+#define MII_CNTL_ISOLATE 0x0400
+#define MII_CNTL_PWRDWN 0x0800
+#define MII_CNTL_AUTO 0x1000
+#define MII_CNTL_F100 0x2000
+#define MII_CNTL_LPBK 0x4000
+#define MII_CNTL_RESET 0x8000
+
+/* MII Status register bit */
+#define MII_STAT_EXT 0x0001
+#define MII_STAT_JAB 0x0002
+#define MII_STAT_LINK 0x0004
+#define MII_STAT_CAN_AUTO 0x0008
+#define MII_STAT_FAULT 0x0010
+#define MII_STAT_AUTO_DONE 0x0020
+#define MII_STAT_CAN_T 0x0800
+#define MII_STAT_CAN_T_FDX 0x1000
+#define MII_STAT_CAN_TX 0x2000
+#define MII_STAT_CAN_TX_FDX 0x4000
+#define MII_STAT_CAN_T4 0x8000
+
+
+#define MII_ID1_OUI_LO 0xFC00 /* low bits of OUI mask */
+#define MII_ID1_MODEL 0x03F0 /* model number */
+#define MII_ID1_REV 0x000F /* model number */
+
+/* MII NWAY Register Bits ...
+ valid for the ANAR (Auto-Negotiation Advertisement) and
+ ANLPAR (Auto-Negotiation Link Partner) registers */
+#define MII_NWAY_NODE_SEL 0x001f
+#define MII_NWAY_CSMA_CD 0x0001
+#define MII_NWAY_T 0x0020
+#define MII_NWAY_T_FDX 0x0040
+#define MII_NWAY_TX 0x0080
+#define MII_NWAY_TX_FDX 0x0100
+#define MII_NWAY_T4 0x0200
+#define MII_NWAY_PAUSE 0x0400
+#define MII_NWAY_RF 0x2000 /* Remote Fault */
+#define MII_NWAY_ACK 0x4000 /* Remote Acknowledge */
+#define MII_NWAY_NP 0x8000 /* Next Page (Enable) */
+
+/* mii stsout register bits */
+#define MII_STSOUT_LINK_FAIL 0x4000
+#define MII_STSOUT_SPD 0x0080
+#define MII_STSOUT_DPLX 0x0040
+
+/* mii stsics register bits */
+#define MII_STSICS_SPD 0x8000
+#define MII_STSICS_DPLX 0x4000
+#define MII_STSICS_LINKSTS 0x0001
+
+/* mii stssum register bits */
+#define MII_STSSUM_LINK 0x0008
+#define MII_STSSUM_DPLX 0x0004
+#define MII_STSSUM_AUTO 0x0002
+#define MII_STSSUM_SPD 0x0001
+
+/* lsi phy status register */
+#define MII_LSI_PHY_STAT_FDX 0x0040
+#define MII_LSI_PHY_STAT_SPD 0x0080
+
+/* amd phy status register */
+#define MII_AMD_PHY_STAT_FDX 0x0800
+#define MII_AMD_PHY_STAT_SPD 0x0400
+
+/* intel phy status register */
+#define MII_INTEL_PHY_STAT_FDX 0x0200
+#define MII_INTEL_PHY_STAT_SPD 0x4000
+
+/* Auxilliary Control/Status Register */
+#define MII_AUX_FDX 0x0001
+#define MII_AUX_100 0x0002
+#define MII_AUX_F100 0x0004
+#define MII_AUX_ANEG 0x0008
+
+typedef struct mii_phy {
+ struct mii_phy * next;
+ struct mii_chip_info * chip_info;
+ u16 status;
+ u32 *mii_control_reg;
+ u32 *mii_data_reg;
+} mii_phy_t;
+
+struct phy_ops {
+ int (*phy_init) (struct net_device *, int);
+ int (*phy_reset) (struct net_device *, int);
+ int (*phy_status) (struct net_device *, int, u16 *, u16 *);
+};
+
+/*
+ * Data Buffer Descriptor. Data buffers must be aligned on 32 byte
+ * boundary for both, receive and transmit.
+ */
+typedef struct db_dest {
+ struct db_dest *pnext;
+ volatile u32 *vaddr;
+ dma_addr_t dma_addr;
+} db_dest_t;
+
+/*
+ * The transmit and receive descriptors are memory
+ * mapped registers.
+ */
+typedef struct tx_dma {
+ u32 status;
+ u32 buff_stat;
+ u32 len;
+ u32 pad;
+} tx_dma_t;
+
+typedef struct rx_dma {
+ u32 status;
+ u32 buff_stat;
+ u32 pad[2];
+} rx_dma_t;
+
+
+/*
+ * MAC control registers, memory mapped.
+ */
+typedef struct mac_reg {
+ u32 control;
+ u32 mac_addr_high;
+ u32 mac_addr_low;
+ u32 multi_hash_high;
+ u32 multi_hash_low;
+ u32 mii_control;
+ u32 mii_data;
+ u32 flow_control;
+ u32 vlan1_tag;
+ u32 vlan2_tag;
+} mac_reg_t;
+
+
+struct au1000_private {
+
+ db_dest_t *pDBfree;
+ db_dest_t db[NUM_RX_BUFFS+NUM_TX_BUFFS];
+ volatile rx_dma_t *rx_dma_ring[NUM_RX_DMA];
+ volatile tx_dma_t *tx_dma_ring[NUM_TX_DMA];
+ db_dest_t *rx_db_inuse[NUM_RX_DMA];
+ db_dest_t *tx_db_inuse[NUM_TX_DMA];
+ u32 rx_head;
+ u32 tx_head;
+ u32 tx_tail;
+ u32 tx_full;
+
+ int mac_id;
+ mii_phy_t *mii;
+ struct phy_ops *phy_ops;
+
+ /* These variables are just for quick access to certain regs addresses. */
+ volatile mac_reg_t *mac; /* mac registers */
+ volatile u32 *enable; /* address of MAC Enable Register */
+
+ u32 vaddr; /* virtual address of rx/tx buffers */
+ dma_addr_t dma_addr; /* dma address of rx/tx buffers */
+
+ u8 *hash_table;
+ u32 hash_mode;
+ u32 intr_work_done; /* number of Rx and Tx pkts processed in the isr */
+ int phy_addr; /* phy address */
+ u32 options; /* User-settable misc. driver options. */
+ u32 drv_flags;
+ int want_autoneg;
+ struct net_device_stats stats;
+ struct timer_list timer;
+ spinlock_t lock; /* Serialise access to device */
+};