drivers/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         /* When using multi-chip addressing, this mutex protects
  20          * access to the indirect access registers.  (In single-chip
  21          * mode, this mutex is effectively useless.)
  22          */
  23         struct mutex    smi_mutex;
  24
  25 #ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
  26         /* Handles automatic disabling and re-enabling of the PHY
  27          * polling unit.
  28          */
  29         struct mutex            ppu_mutex;
  30         int                     ppu_disabled;
  31         struct work_struct      ppu_work;
  32         struct timer_list       ppu_timer;
  33 #endif
  34
  35         /* This mutex serialises access to the statistics unit.
  36          * Hold this mutex over snapshot + dump sequences.
  37          */
  38         struct mutex    stats_mutex;
  39
  40         /* This mutex serializes phy access for chips with
  41          * indirect phy addressing. It is unused for chips
  42          * with direct phy access.
  43          */
  44         struct mutex    phy_mutex;
  45
  46         int             id; /* switch product id */
  47 };
  48
  49 struct mv88e6xxx_hw_stat {
  50         char string[ETH_GSTRING_LEN];
  51         int sizeof_stat;
  52         int reg;
  53 };
  54
  55 int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
  56 int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
  57 int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
  58                           int reg, u16 val);
  59 int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
  60 int mv88e6xxx_config_prio(struct dsa_switch *ds);
  61 int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
  62 int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
  63 int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
  64 int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
  65 void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
  66 int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
  67 int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
  68                             int regnum, u16 val);
  69 void mv88e6xxx_poll_link(struct dsa_switch *ds);
  70 void mv88e6xxx_get_strings(struct dsa_switch *ds,
  71                            int nr_stats, struct mv88e6xxx_hw_stat *stats,
  72                            int port, uint8_t *data);
  73 void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
  74                                  int nr_stats, struct mv88e6xxx_hw_stat *stats,
  75                                  int port, uint64_t *data);
  76
  77 extern struct dsa_switch_driver mv88e6131_switch_driver;
  78 extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
  79 extern struct dsa_switch_driver mv88e6352_switch_driver;
  80 extern struct dsa_switch_driver mv88e6171_switch_driver;
  81
  82 #define REG_READ(addr, reg)                                             \
  83         ({                                                              \
  84                 int __ret;                                              \
  85                                                                         \
  86                 __ret = mv88e6xxx_reg_read(ds, addr, reg);              \
  87                 if (__ret < 0)                                          \
  88                         return __ret;                                   \
  89                 __ret;                                                  \
  90         })
  91
  92 #define REG_WRITE(addr, reg, val)                                       \
  93         ({                                                              \
  94                 int __ret;                                              \
  95                                                                         \
  96                 __ret = mv88e6xxx_reg_write(ds, addr, reg, val);        \
  97                 if (__ret < 0)                                          \
  98                         return __ret;                                   \
  99         })
 100
 101
 102
 103 #endif