LXR linux/drivers/net/fs_enet/fs

   1#ifndef FS_ENET_H
   2#define FS_ENET_H
   3
   4#include <linux/mii.h>
   5#include <linux/netdevice.h>
   6#include <linux/types.h>
   7#include <linux/list.h>
   8#include <linux/phy.h>
   9#include <linux/dma-mapping.h>
  10
  11#include <linux/fs_enet_pd.h>
  12#include <asm/fs_pd.h>
  13
  14#ifdef CONFIG_CPM1
  15#include <asm/cpm1.h>
  16
  17struct fec_info {
  18        fec_t __iomem *fecp;
  19        u32 mii_speed;
  20};
  21#endif
  22
  23#ifdef CONFIG_CPM2
  24#include <asm/cpm2.h>
  25#endif
  26
  27/* hw driver ops */
  28struct fs_ops {
  29        int (*setup_data)(struct net_device *dev);
  30        int (*allocate_bd)(struct net_device *dev);
  31        void (*free_bd)(struct net_device *dev);
  32        void (*cleanup_data)(struct net_device *dev);
  33        void (*set_multicast_list)(struct net_device *dev);
  34        void (*adjust_link)(struct net_device *dev);
  35        void (*restart)(struct net_device *dev);
  36        void (*stop)(struct net_device *dev);
  37        void (*napi_clear_rx_event)(struct net_device *dev);
  38        void (*napi_enable_rx)(struct net_device *dev);
  39        void (*napi_disable_rx)(struct net_device *dev);
  40        void (*rx_bd_done)(struct net_device *dev);
  41        void (*tx_kickstart)(struct net_device *dev);
  42        u32 (*get_int_events)(struct net_device *dev);
  43        void (*clear_int_events)(struct net_device *dev, u32 int_events);
  44        void (*ev_error)(struct net_device *dev, u32 int_events);
  45        int (*get_regs)(struct net_device *dev, void *p, int *sizep);
  46        int (*get_regs_len)(struct net_device *dev);
  47        void (*tx_restart)(struct net_device *dev);
  48};
  49
  50struct phy_info {
  51        unsigned int id;
  52        const char *name;
  53        void (*startup) (struct net_device * dev);
  54        void (*shutdown) (struct net_device * dev);
  55        void (*ack_int) (struct net_device * dev);
  56};
  57
  58/* The FEC stores dest/src/type, data, and checksum for receive packets.
  59 */
  60#define MAX_MTU 1508            /* Allow fullsized pppoe packets over VLAN */
  61#define MIN_MTU 46              /* this is data size */
  62#define CRC_LEN 4
  63
  64#define PKT_MAXBUF_SIZE         (MAX_MTU+ETH_HLEN+CRC_LEN)
  65#define PKT_MINBUF_SIZE         (MIN_MTU+ETH_HLEN+CRC_LEN)
  66
  67/* Must be a multiple of 32 (to cover both FEC & FCC) */
  68#define PKT_MAXBLR_SIZE         ((PKT_MAXBUF_SIZE + 31) & ~31)
  69/* This is needed so that invalidate_xxx wont invalidate too much */
  70#define ENET_RX_ALIGN  16
  71#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
  72
  73struct fs_enet_private {
  74        struct napi_struct napi;
  75        struct device *dev;     /* pointer back to the device (must be initialized first) */
  76        struct net_device *ndev;
  77        spinlock_t lock;        /* during all ops except TX pckt processing */
  78        spinlock_t tx_lock;     /* during fs_start_xmit and fs_tx         */
  79        struct fs_platform_info *fpi;
  80        const struct fs_ops *ops;
  81        int rx_ring, tx_ring;
  82        dma_addr_t ring_mem_addr;
  83        void __iomem *ring_base;
  84        struct sk_buff **rx_skbuff;
  85        struct sk_buff **tx_skbuff;
  86        cbd_t __iomem *rx_bd_base;      /* Address of Rx and Tx buffers.    */
  87        cbd_t __iomem *tx_bd_base;
  88        cbd_t __iomem *dirty_tx;        /* ring entries to be free()ed.     */
  89        cbd_t __iomem *cur_rx;
  90        cbd_t __iomem *cur_tx;
  91        int tx_free;
  92        struct net_device_stats stats;
  93        struct timer_list phy_timer_list;
  94        const struct phy_info *phy;
  95        u32 msg_enable;
  96        struct mii_if_info mii_if;
  97        unsigned int last_mii_status;
  98        int interrupt;
  99
 100        struct phy_device *phydev;
 101        int oldduplex, oldspeed, oldlink;       /* current settings */
 102
 103        /* event masks */
 104        u32 ev_napi_rx;         /* mask of NAPI rx events */
 105        u32 ev_rx;              /* rx event mask          */
 106        u32 ev_tx;              /* tx event mask          */
 107        u32 ev_err;             /* error event mask       */
 108
 109        u16 bd_rx_empty;        /* mask of BD rx empty    */
 110        u16 bd_rx_err;          /* mask of BD rx errors   */
 111
 112        union {
 113                struct {
 114                        int idx;                /* FEC1 = 0, FEC2 = 1  */
 115                        void __iomem *fecp;     /* hw registers        */
 116                        u32 hthi, htlo;         /* state for multicast */
 117                } fec;
 118
 119                struct {
 120                        int idx;                /* FCC1-3 = 0-2        */
 121                        void __iomem *fccp;     /* hw registers        */
 122                        void __iomem *ep;       /* parameter ram       */
 123                        void __iomem *fcccp;    /* hw registers cont.  */
 124                        void __iomem *mem;      /* FCC DPRAM */
 125                        u32 gaddrh, gaddrl;     /* group address       */
 126                } fcc;
 127
 128                struct {
 129                        int idx;                /* FEC1 = 0, FEC2 = 1  */
 130                        void __iomem *sccp;     /* hw registers        */
 131                        void __iomem *ep;       /* parameter ram       */
 132                        u32 hthi, htlo;         /* state for multicast */
 133                } scc;
 134
 135        };
 136};
 137
 138/***************************************************************************/
 139
 140void fs_init_bds(struct net_device *dev);
 141void fs_cleanup_bds(struct net_device *dev);
 142
 143/***************************************************************************/
 144
 145#define DRV_MODULE_NAME         "fs_enet"
 146#define PFX DRV_MODULE_NAME     ": "
 147#define DRV_MODULE_VERSION      "1.0"
 148#define DRV_MODULE_RELDATE      "Aug 8, 2005"
 149
 150/***************************************************************************/
 151
 152int fs_enet_platform_init(void);
 153void fs_enet_platform_cleanup(void);
 154
 155/***************************************************************************/
 156/* buffer descriptor access macros */
 157
 158/* access macros */
 159#if defined(CONFIG_CPM1)
 160/* for a a CPM1 __raw_xxx's are sufficient */
 161#define __cbd_out32(addr, x)    __raw_writel(x, addr)
 162#define __cbd_out16(addr, x)    __raw_writew(x, addr)
 163#define __cbd_in32(addr)        __raw_readl(addr)
 164#define __cbd_in16(addr)        __raw_readw(addr)
 165#else
 166/* for others play it safe */
 167#define __cbd_out32(addr, x)    out_be32(addr, x)
 168#define __cbd_out16(addr, x)    out_be16(addr, x)
 169#define __cbd_in32(addr)        in_be32(addr)
 170#define __cbd_in16(addr)        in_be16(addr)
 171#endif
 172
 173/* write */
 174#define CBDW_SC(_cbd, _sc)              __cbd_out16(&(_cbd)->cbd_sc, (_sc))
 175#define CBDW_DATLEN(_cbd, _datlen)      __cbd_out16(&(_cbd)->cbd_datlen, (_datlen))
 176#define CBDW_BUFADDR(_cbd, _bufaddr)    __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
 177
 178/* read */
 179#define CBDR_SC(_cbd)                   __cbd_in16(&(_cbd)->cbd_sc)
 180#define CBDR_DATLEN(_cbd)               __cbd_in16(&(_cbd)->cbd_datlen)
 181#define CBDR_BUFADDR(_cbd)              __cbd_in32(&(_cbd)->cbd_bufaddr)
 182
 183/* set bits */
 184#define CBDS_SC(_cbd, _sc)              CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
 185
 186/* clear bits */
 187#define CBDC_SC(_cbd, _sc)              CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
 188
 189/*******************************************************************/
 190
 191extern const struct fs_ops fs_fec_ops;
 192extern const struct fs_ops fs_fcc_ops;
 193extern const struct fs_ops fs_scc_ops;
 194
 195/*******************************************************************/
 196
 197/* handy pointer to the immap */
 198extern void __iomem *fs_enet_immap;
 199
 200/*******************************************************************/
 201
 202#endif
 203