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
  18 struct 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         /*
  27          * This mutex serialises access to the statistics unit.
  28          * Hold this mutex over snapshot + dump sequences.
  29          */
  30         struct mutex    stats_mutex;
  31 };
  32
  33 struct mv88e6xxx_hw_stat {
  34         char string[ETH_GSTRING_LEN];
  35         int sizeof_stat;
  36         int reg;
  37 };
  38
  39 int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
  40 int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
  41 int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
  42                           int reg, u16 val);
  43 int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
  44 int mv88e6xxx_config_prio(struct dsa_switch *ds);
  45 int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
  46 int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
  47 int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
  48 void mv88e6xxx_poll_link(struct dsa_switch *ds);
  49 void mv88e6xxx_get_strings(struct dsa_switch *ds,
  50                            int nr_stats, struct mv88e6xxx_hw_stat *stats,
  51                            int port, uint8_t *data);
  52 void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
  53                                  int nr_stats, struct mv88e6xxx_hw_stat *stats,
  54                                  int port, uint64_t *data);
  55
  56 #define REG_READ(addr, reg)                                             \
  57         ({                                                              \
  58                 int __ret;                                              \
  59                                                                         \
  60                 __ret = mv88e6xxx_reg_read(ds, addr, reg);              \
  61                 if (__ret < 0)                                          \
  62                         return __ret;                                   \
  63                 __ret;                                                  \
  64         })
  65
  66 #define REG_WRITE(addr, reg, val)                                       \
  67         ({                                                              \
  68                 int __ret;                                              \
  69                                                                         \
  70                 __ret = mv88e6xxx_reg_write(ds, addr, reg, val);        \
  71                 if (__ret < 0)                                          \
  72                         return __ret;                                   \
  73         })
  74
  75
  76
  77 #endif