LXR linux/net/dsa/mv88e6xxx.h

   1/*
   2 * net/dsa/mv88e6xxx.h - Marvell 88e6xxx switch chip support
   3 * Copyright (c) 2008 Marvell Semiconductor
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License as published by
   7 * the Free Software Foundation; either version 2 of the License, or
   8 * (at your option) any later version.
   9 */
  10
  11#ifndef __MV88E6XXX_H
  12#define __MV88E6XXX_H
  13
  14#define REG_PORT(p)             (0x10 + (p))
  15#define REG_GLOBAL              0x1b
  16#define REG_GLOBAL2             0x1c
  17
  18struct mv88e6xxx_priv_state {
  19        /*
  20         * When using multi-chip addressing, this mutex protects
  21         * access to the indirect access registers.  (In single-chip
  22         * mode, this mutex is effectively useless.)
  23         */
  24        struct mutex    smi_mutex;
  25
  26#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
  27        /*
  28         * Handles automatic disabling and re-enabling of the PHY
  29         * polling unit.
  30         */
  31        struct mutex            ppu_mutex;
  32        int                     ppu_disabled;
  33        struct work_struct      ppu_work;
  34        struct timer_list       ppu_timer;
  35#endif
  36
  37        /*
  38         * This mutex serialises access to the statistics unit.
  39         * Hold this mutex over snapshot + dump sequences.
  40         */
  41        struct mutex    stats_mutex;
  42};
  43
  44struct mv88e6xxx_hw_stat {
  45        char string[ETH_GSTRING_LEN];
  46        int sizeof_stat;
  47        int reg;
  48};
  49
  50int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
  51int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
  52int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
  53                          int reg, u16 val);
  54int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
  55int mv88e6xxx_config_prio(struct dsa_switch *ds);
  56int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
  57int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
  58int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
  59int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
  60void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
  61int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
  62int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
  63                            int regnum, u16 val);
  64void mv88e6xxx_poll_link(struct dsa_switch *ds);
  65void mv88e6xxx_get_strings(struct dsa_switch *ds,
  66                           int nr_stats, struct mv88e6xxx_hw_stat *stats,
  67                           int port, uint8_t *data);
  68void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
  69                                 int nr_stats, struct mv88e6xxx_hw_stat *stats,
  70                                 int port, uint64_t *data);
  71
  72#define REG_READ(addr, reg)                                             \
  73        ({                                                              \
  74                int __ret;                                              \
  75                                                                        \
  76                __ret = mv88e6xxx_reg_read(ds, addr, reg);              \
  77                if (__ret < 0)                                          \
  78                        return __ret;                                   \
  79                __ret;                                                  \
  80        })
  81
  82#define REG_WRITE(addr, reg, val)                                       \
  83        ({                                                              \
  84                int __ret;                                              \
  85                                                                        \
  86                __ret = mv88e6xxx_reg_write(ds, addr, reg, val);        \
  87                if (__ret < 0)                                          \
  88                        return __ret;                                   \
  89        })
  90
  91
  92
  93#endif
  94