tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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