mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f0f9b4ed23
This patch add set_loopback in phy_driver, which is used by MAC driver to enable or disable phy loopback. it also add a generic genphy_loopback function, which use BMCR loopback bit to enable or disable loopback. Signed-off-by: Lin Yun Sheng <linyunsheng@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
966 lines
30 KiB
C
966 lines
30 KiB
C
/*
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* Framework and drivers for configuring and reading different PHYs
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* Based on code in sungem_phy.c and gianfar_phy.c
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*
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* Author: Andy Fleming
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*
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* Copyright (c) 2004 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#ifndef __PHY_H
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#define __PHY_H
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#include <linux/compiler.h>
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#include <linux/spinlock.h>
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#include <linux/ethtool.h>
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#include <linux/mdio.h>
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#include <linux/mii.h>
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#include <linux/module.h>
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include <linux/mod_devicetable.h>
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#include <linux/atomic.h>
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#define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
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SUPPORTED_TP | \
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SUPPORTED_MII)
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#define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
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SUPPORTED_10baseT_Full)
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#define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
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SUPPORTED_100baseT_Full)
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#define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
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SUPPORTED_1000baseT_Full)
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#define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \
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PHY_100BT_FEATURES | \
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PHY_DEFAULT_FEATURES)
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#define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
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PHY_1000BT_FEATURES)
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/*
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* Set phydev->irq to PHY_POLL if interrupts are not supported,
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* or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if
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* the attached driver handles the interrupt
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*/
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#define PHY_POLL -1
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#define PHY_IGNORE_INTERRUPT -2
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#define PHY_HAS_INTERRUPT 0x00000001
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#define PHY_IS_INTERNAL 0x00000002
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#define MDIO_DEVICE_IS_PHY 0x80000000
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/* Interface Mode definitions */
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typedef enum {
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PHY_INTERFACE_MODE_NA,
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PHY_INTERFACE_MODE_INTERNAL,
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PHY_INTERFACE_MODE_MII,
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PHY_INTERFACE_MODE_GMII,
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PHY_INTERFACE_MODE_SGMII,
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PHY_INTERFACE_MODE_TBI,
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PHY_INTERFACE_MODE_REVMII,
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PHY_INTERFACE_MODE_RMII,
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PHY_INTERFACE_MODE_RGMII,
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PHY_INTERFACE_MODE_RGMII_ID,
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PHY_INTERFACE_MODE_RGMII_RXID,
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PHY_INTERFACE_MODE_RGMII_TXID,
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PHY_INTERFACE_MODE_RTBI,
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PHY_INTERFACE_MODE_SMII,
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PHY_INTERFACE_MODE_XGMII,
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PHY_INTERFACE_MODE_MOCA,
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PHY_INTERFACE_MODE_QSGMII,
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PHY_INTERFACE_MODE_TRGMII,
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PHY_INTERFACE_MODE_1000BASEX,
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PHY_INTERFACE_MODE_2500BASEX,
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PHY_INTERFACE_MODE_RXAUI,
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PHY_INTERFACE_MODE_XAUI,
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/* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */
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PHY_INTERFACE_MODE_10GKR,
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PHY_INTERFACE_MODE_MAX,
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} phy_interface_t;
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/**
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* phy_supported_speeds - return all speeds currently supported by a phy device
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* @phy: The phy device to return supported speeds of.
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* @speeds: buffer to store supported speeds in.
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* @size: size of speeds buffer.
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*
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* Description: Returns the number of supported speeds, and
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* fills the speeds * buffer with the supported speeds. If speeds buffer is
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* too small to contain * all currently supported speeds, will return as
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* many speeds as can fit.
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*/
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unsigned int phy_supported_speeds(struct phy_device *phy,
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unsigned int *speeds,
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unsigned int size);
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/**
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* It maps 'enum phy_interface_t' found in include/linux/phy.h
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* into the device tree binding of 'phy-mode', so that Ethernet
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* device driver can get phy interface from device tree.
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*/
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static inline const char *phy_modes(phy_interface_t interface)
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{
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switch (interface) {
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case PHY_INTERFACE_MODE_NA:
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return "";
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case PHY_INTERFACE_MODE_INTERNAL:
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return "internal";
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case PHY_INTERFACE_MODE_MII:
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return "mii";
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case PHY_INTERFACE_MODE_GMII:
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return "gmii";
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case PHY_INTERFACE_MODE_SGMII:
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return "sgmii";
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case PHY_INTERFACE_MODE_TBI:
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return "tbi";
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case PHY_INTERFACE_MODE_REVMII:
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return "rev-mii";
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case PHY_INTERFACE_MODE_RMII:
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return "rmii";
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case PHY_INTERFACE_MODE_RGMII:
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return "rgmii";
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case PHY_INTERFACE_MODE_RGMII_ID:
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return "rgmii-id";
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case PHY_INTERFACE_MODE_RGMII_RXID:
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return "rgmii-rxid";
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case PHY_INTERFACE_MODE_RGMII_TXID:
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return "rgmii-txid";
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case PHY_INTERFACE_MODE_RTBI:
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return "rtbi";
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case PHY_INTERFACE_MODE_SMII:
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return "smii";
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case PHY_INTERFACE_MODE_XGMII:
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return "xgmii";
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case PHY_INTERFACE_MODE_MOCA:
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return "moca";
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case PHY_INTERFACE_MODE_QSGMII:
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return "qsgmii";
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case PHY_INTERFACE_MODE_TRGMII:
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return "trgmii";
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case PHY_INTERFACE_MODE_1000BASEX:
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return "1000base-x";
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case PHY_INTERFACE_MODE_2500BASEX:
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return "2500base-x";
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case PHY_INTERFACE_MODE_RXAUI:
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return "rxaui";
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case PHY_INTERFACE_MODE_XAUI:
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return "xaui";
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case PHY_INTERFACE_MODE_10GKR:
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return "10gbase-kr";
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default:
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return "unknown";
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}
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}
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#define PHY_INIT_TIMEOUT 100000
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#define PHY_STATE_TIME 1
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#define PHY_FORCE_TIMEOUT 10
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#define PHY_AN_TIMEOUT 10
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#define PHY_MAX_ADDR 32
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/* Used when trying to connect to a specific phy (mii bus id:phy device id) */
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#define PHY_ID_FMT "%s:%02x"
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#define MII_BUS_ID_SIZE 61
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/* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
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IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
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#define MII_ADDR_C45 (1<<30)
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struct device;
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struct sk_buff;
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/*
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* The Bus class for PHYs. Devices which provide access to
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* PHYs should register using this structure
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*/
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struct mii_bus {
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struct module *owner;
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const char *name;
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char id[MII_BUS_ID_SIZE];
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void *priv;
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int (*read)(struct mii_bus *bus, int addr, int regnum);
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int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
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int (*reset)(struct mii_bus *bus);
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/*
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* A lock to ensure that only one thing can read/write
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* the MDIO bus at a time
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*/
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struct mutex mdio_lock;
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struct device *parent;
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enum {
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MDIOBUS_ALLOCATED = 1,
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MDIOBUS_REGISTERED,
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MDIOBUS_UNREGISTERED,
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MDIOBUS_RELEASED,
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} state;
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struct device dev;
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/* list of all PHYs on bus */
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struct mdio_device *mdio_map[PHY_MAX_ADDR];
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/* PHY addresses to be ignored when probing */
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u32 phy_mask;
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/* PHY addresses to ignore the TA/read failure */
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u32 phy_ignore_ta_mask;
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/*
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* An array of interrupts, each PHY's interrupt at the index
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* matching its address
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*/
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int irq[PHY_MAX_ADDR];
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/* GPIO reset pulse width in microseconds */
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int reset_delay_us;
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/* RESET GPIO descriptor pointer */
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struct gpio_desc *reset_gpiod;
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};
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#define to_mii_bus(d) container_of(d, struct mii_bus, dev)
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struct mii_bus *mdiobus_alloc_size(size_t);
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static inline struct mii_bus *mdiobus_alloc(void)
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{
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return mdiobus_alloc_size(0);
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}
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int __mdiobus_register(struct mii_bus *bus, struct module *owner);
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#define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
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void mdiobus_unregister(struct mii_bus *bus);
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void mdiobus_free(struct mii_bus *bus);
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struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
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static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
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{
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return devm_mdiobus_alloc_size(dev, 0);
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}
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void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
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struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
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#define PHY_INTERRUPT_DISABLED 0x0
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#define PHY_INTERRUPT_ENABLED 0x80000000
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/* PHY state machine states:
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*
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* DOWN: PHY device and driver are not ready for anything. probe
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* should be called if and only if the PHY is in this state,
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* given that the PHY device exists.
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* - PHY driver probe function will, depending on the PHY, set
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* the state to STARTING or READY
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*
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* STARTING: PHY device is coming up, and the ethernet driver is
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* not ready. PHY drivers may set this in the probe function.
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* If they do, they are responsible for making sure the state is
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* eventually set to indicate whether the PHY is UP or READY,
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* depending on the state when the PHY is done starting up.
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* - PHY driver will set the state to READY
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* - start will set the state to PENDING
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*
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* READY: PHY is ready to send and receive packets, but the
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* controller is not. By default, PHYs which do not implement
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* probe will be set to this state by phy_probe(). If the PHY
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* driver knows the PHY is ready, and the PHY state is STARTING,
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* then it sets this STATE.
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* - start will set the state to UP
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*
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* PENDING: PHY device is coming up, but the ethernet driver is
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* ready. phy_start will set this state if the PHY state is
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* STARTING.
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* - PHY driver will set the state to UP when the PHY is ready
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*
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* UP: The PHY and attached device are ready to do work.
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* Interrupts should be started here.
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* - timer moves to AN
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*
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* AN: The PHY is currently negotiating the link state. Link is
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* therefore down for now. phy_timer will set this state when it
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* detects the state is UP. config_aneg will set this state
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* whenever called with phydev->autoneg set to AUTONEG_ENABLE.
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* - If autonegotiation finishes, but there's no link, it sets
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* the state to NOLINK.
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* - If aneg finishes with link, it sets the state to RUNNING,
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* and calls adjust_link
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* - If autonegotiation did not finish after an arbitrary amount
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* of time, autonegotiation should be tried again if the PHY
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* supports "magic" autonegotiation (back to AN)
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* - If it didn't finish, and no magic_aneg, move to FORCING.
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*
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* NOLINK: PHY is up, but not currently plugged in.
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* - If the timer notes that the link comes back, we move to RUNNING
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* - config_aneg moves to AN
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* - phy_stop moves to HALTED
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*
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* FORCING: PHY is being configured with forced settings
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* - if link is up, move to RUNNING
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* - If link is down, we drop to the next highest setting, and
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* retry (FORCING) after a timeout
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* - phy_stop moves to HALTED
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*
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* RUNNING: PHY is currently up, running, and possibly sending
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* and/or receiving packets
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* - timer will set CHANGELINK if we're polling (this ensures the
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* link state is polled every other cycle of this state machine,
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* which makes it every other second)
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* - irq will set CHANGELINK
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* - config_aneg will set AN
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* - phy_stop moves to HALTED
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*
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* CHANGELINK: PHY experienced a change in link state
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* - timer moves to RUNNING if link
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* - timer moves to NOLINK if the link is down
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* - phy_stop moves to HALTED
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*
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* HALTED: PHY is up, but no polling or interrupts are done. Or
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* PHY is in an error state.
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*
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* - phy_start moves to RESUMING
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*
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* RESUMING: PHY was halted, but now wants to run again.
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* - If we are forcing, or aneg is done, timer moves to RUNNING
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* - If aneg is not done, timer moves to AN
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* - phy_stop moves to HALTED
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*/
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enum phy_state {
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PHY_DOWN = 0,
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PHY_STARTING,
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PHY_READY,
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PHY_PENDING,
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PHY_UP,
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PHY_AN,
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PHY_RUNNING,
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PHY_NOLINK,
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PHY_FORCING,
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PHY_CHANGELINK,
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PHY_HALTED,
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PHY_RESUMING
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};
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/**
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* struct phy_c45_device_ids - 802.3-c45 Device Identifiers
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* @devices_in_package: Bit vector of devices present.
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* @device_ids: The device identifer for each present device.
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*/
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struct phy_c45_device_ids {
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u32 devices_in_package;
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u32 device_ids[8];
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};
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/* phy_device: An instance of a PHY
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*
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* drv: Pointer to the driver for this PHY instance
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* phy_id: UID for this device found during discovery
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* c45_ids: 802.3-c45 Device Identifers if is_c45.
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* is_c45: Set to true if this phy uses clause 45 addressing.
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* is_internal: Set to true if this phy is internal to a MAC.
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* is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc.
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* has_fixups: Set to true if this phy has fixups/quirks.
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* suspended: Set to true if this phy has been suspended successfully.
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* sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
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* loopback_enabled: Set true if this phy has been loopbacked successfully.
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* state: state of the PHY for management purposes
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* dev_flags: Device-specific flags used by the PHY driver.
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* link_timeout: The number of timer firings to wait before the
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* giving up on the current attempt at acquiring a link
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* irq: IRQ number of the PHY's interrupt (-1 if none)
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* phy_timer: The timer for handling the state machine
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* phy_queue: A work_queue for the phy_mac_interrupt
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* attached_dev: The attached enet driver's device instance ptr
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* adjust_link: Callback for the enet controller to respond to
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* changes in the link state.
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*
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* speed, duplex, pause, supported, advertising, lp_advertising,
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* and autoneg are used like in mii_if_info
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*
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* interrupts currently only supports enabled or disabled,
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* but could be changed in the future to support enabling
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* and disabling specific interrupts
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*
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* Contains some infrastructure for polling and interrupt
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* handling, as well as handling shifts in PHY hardware state
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*/
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struct phy_device {
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struct mdio_device mdio;
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/* Information about the PHY type */
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/* And management functions */
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struct phy_driver *drv;
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u32 phy_id;
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struct phy_c45_device_ids c45_ids;
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bool is_c45;
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bool is_internal;
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bool is_pseudo_fixed_link;
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bool has_fixups;
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bool suspended;
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bool sysfs_links;
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bool loopback_enabled;
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enum phy_state state;
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u32 dev_flags;
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phy_interface_t interface;
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/*
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* forced speed & duplex (no autoneg)
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* partner speed & duplex & pause (autoneg)
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*/
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int speed;
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int duplex;
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int pause;
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int asym_pause;
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/* The most recently read link state */
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int link;
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/* Enabled Interrupts */
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u32 interrupts;
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/* Union of PHY and Attached devices' supported modes */
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/* See mii.h for more info */
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u32 supported;
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u32 advertising;
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u32 lp_advertising;
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/* Energy efficient ethernet modes which should be prohibited */
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u32 eee_broken_modes;
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int autoneg;
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int link_timeout;
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#ifdef CONFIG_LED_TRIGGER_PHY
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struct phy_led_trigger *phy_led_triggers;
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unsigned int phy_num_led_triggers;
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struct phy_led_trigger *last_triggered;
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#endif
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/*
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* Interrupt number for this PHY
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* -1 means no interrupt
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*/
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int irq;
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/* private data pointer */
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/* For use by PHYs to maintain extra state */
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void *priv;
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/* Interrupt and Polling infrastructure */
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struct work_struct phy_queue;
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struct delayed_work state_queue;
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atomic_t irq_disable;
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struct mutex lock;
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struct net_device *attached_dev;
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u8 mdix;
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u8 mdix_ctrl;
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void (*adjust_link)(struct net_device *dev);
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};
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#define to_phy_device(d) container_of(to_mdio_device(d), \
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struct phy_device, mdio)
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|
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/* struct phy_driver: Driver structure for a particular PHY type
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*
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* driver_data: static driver data
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* phy_id: The result of reading the UID registers of this PHY
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* type, and ANDing them with the phy_id_mask. This driver
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* only works for PHYs with IDs which match this field
|
|
* name: The friendly name of this PHY type
|
|
* phy_id_mask: Defines the important bits of the phy_id
|
|
* features: A list of features (speed, duplex, etc) supported
|
|
* by this PHY
|
|
* flags: A bitfield defining certain other features this PHY
|
|
* supports (like interrupts)
|
|
*
|
|
* The drivers must implement config_aneg and read_status. All
|
|
* other functions are optional. Note that none of these
|
|
* functions should be called from interrupt time. The goal is
|
|
* for the bus read/write functions to be able to block when the
|
|
* bus transaction is happening, and be freed up by an interrupt
|
|
* (The MPC85xx has this ability, though it is not currently
|
|
* supported in the driver).
|
|
*/
|
|
struct phy_driver {
|
|
struct mdio_driver_common mdiodrv;
|
|
u32 phy_id;
|
|
char *name;
|
|
unsigned int phy_id_mask;
|
|
u32 features;
|
|
u32 flags;
|
|
const void *driver_data;
|
|
|
|
/*
|
|
* Called to issue a PHY software reset
|
|
*/
|
|
int (*soft_reset)(struct phy_device *phydev);
|
|
|
|
/*
|
|
* Called to initialize the PHY,
|
|
* including after a reset
|
|
*/
|
|
int (*config_init)(struct phy_device *phydev);
|
|
|
|
/*
|
|
* Called during discovery. Used to set
|
|
* up device-specific structures, if any
|
|
*/
|
|
int (*probe)(struct phy_device *phydev);
|
|
|
|
/* PHY Power Management */
|
|
int (*suspend)(struct phy_device *phydev);
|
|
int (*resume)(struct phy_device *phydev);
|
|
|
|
/*
|
|
* Configures the advertisement and resets
|
|
* autonegotiation if phydev->autoneg is on,
|
|
* forces the speed to the current settings in phydev
|
|
* if phydev->autoneg is off
|
|
*/
|
|
int (*config_aneg)(struct phy_device *phydev);
|
|
|
|
/* Determines the auto negotiation result */
|
|
int (*aneg_done)(struct phy_device *phydev);
|
|
|
|
/* Determines the negotiated speed and duplex */
|
|
int (*read_status)(struct phy_device *phydev);
|
|
|
|
/* Clears any pending interrupts */
|
|
int (*ack_interrupt)(struct phy_device *phydev);
|
|
|
|
/* Enables or disables interrupts */
|
|
int (*config_intr)(struct phy_device *phydev);
|
|
|
|
/*
|
|
* Checks if the PHY generated an interrupt.
|
|
* For multi-PHY devices with shared PHY interrupt pin
|
|
*/
|
|
int (*did_interrupt)(struct phy_device *phydev);
|
|
|
|
/* Clears up any memory if needed */
|
|
void (*remove)(struct phy_device *phydev);
|
|
|
|
/* Returns true if this is a suitable driver for the given
|
|
* phydev. If NULL, matching is based on phy_id and
|
|
* phy_id_mask.
|
|
*/
|
|
int (*match_phy_device)(struct phy_device *phydev);
|
|
|
|
/* Handles ethtool queries for hardware time stamping. */
|
|
int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
|
|
|
|
/* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
|
|
int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
|
|
|
|
/*
|
|
* Requests a Rx timestamp for 'skb'. If the skb is accepted,
|
|
* the phy driver promises to deliver it using netif_rx() as
|
|
* soon as a timestamp becomes available. One of the
|
|
* PTP_CLASS_ values is passed in 'type'. The function must
|
|
* return true if the skb is accepted for delivery.
|
|
*/
|
|
bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
|
|
|
|
/*
|
|
* Requests a Tx timestamp for 'skb'. The phy driver promises
|
|
* to deliver it using skb_complete_tx_timestamp() as soon as a
|
|
* timestamp becomes available. One of the PTP_CLASS_ values
|
|
* is passed in 'type'.
|
|
*/
|
|
void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
|
|
|
|
/* Some devices (e.g. qnap TS-119P II) require PHY register changes to
|
|
* enable Wake on LAN, so set_wol is provided to be called in the
|
|
* ethernet driver's set_wol function. */
|
|
int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
|
|
|
|
/* See set_wol, but for checking whether Wake on LAN is enabled. */
|
|
void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
|
|
|
|
/*
|
|
* Called to inform a PHY device driver when the core is about to
|
|
* change the link state. This callback is supposed to be used as
|
|
* fixup hook for drivers that need to take action when the link
|
|
* state changes. Drivers are by no means allowed to mess with the
|
|
* PHY device structure in their implementations.
|
|
*/
|
|
void (*link_change_notify)(struct phy_device *dev);
|
|
|
|
/*
|
|
* Phy specific driver override for reading a MMD register.
|
|
* This function is optional for PHY specific drivers. When
|
|
* not provided, the default MMD read function will be used
|
|
* by phy_read_mmd(), which will use either a direct read for
|
|
* Clause 45 PHYs or an indirect read for Clause 22 PHYs.
|
|
* devnum is the MMD device number within the PHY device,
|
|
* regnum is the register within the selected MMD device.
|
|
*/
|
|
int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
|
|
|
|
/*
|
|
* Phy specific driver override for writing a MMD register.
|
|
* This function is optional for PHY specific drivers. When
|
|
* not provided, the default MMD write function will be used
|
|
* by phy_write_mmd(), which will use either a direct write for
|
|
* Clause 45 PHYs, or an indirect write for Clause 22 PHYs.
|
|
* devnum is the MMD device number within the PHY device,
|
|
* regnum is the register within the selected MMD device.
|
|
* val is the value to be written.
|
|
*/
|
|
int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
|
|
u16 val);
|
|
|
|
/* Get the size and type of the eeprom contained within a plug-in
|
|
* module */
|
|
int (*module_info)(struct phy_device *dev,
|
|
struct ethtool_modinfo *modinfo);
|
|
|
|
/* Get the eeprom information from the plug-in module */
|
|
int (*module_eeprom)(struct phy_device *dev,
|
|
struct ethtool_eeprom *ee, u8 *data);
|
|
|
|
/* Get statistics from the phy using ethtool */
|
|
int (*get_sset_count)(struct phy_device *dev);
|
|
void (*get_strings)(struct phy_device *dev, u8 *data);
|
|
void (*get_stats)(struct phy_device *dev,
|
|
struct ethtool_stats *stats, u64 *data);
|
|
|
|
/* Get and Set PHY tunables */
|
|
int (*get_tunable)(struct phy_device *dev,
|
|
struct ethtool_tunable *tuna, void *data);
|
|
int (*set_tunable)(struct phy_device *dev,
|
|
struct ethtool_tunable *tuna,
|
|
const void *data);
|
|
int (*set_loopback)(struct phy_device *dev, bool enable);
|
|
};
|
|
#define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
|
|
struct phy_driver, mdiodrv)
|
|
|
|
#define PHY_ANY_ID "MATCH ANY PHY"
|
|
#define PHY_ANY_UID 0xffffffff
|
|
|
|
/* A Structure for boards to register fixups with the PHY Lib */
|
|
struct phy_fixup {
|
|
struct list_head list;
|
|
char bus_id[MII_BUS_ID_SIZE + 3];
|
|
u32 phy_uid;
|
|
u32 phy_uid_mask;
|
|
int (*run)(struct phy_device *phydev);
|
|
};
|
|
|
|
/**
|
|
* phy_read_mmd - Convenience function for reading a register
|
|
* from an MMD on a given PHY.
|
|
* @phydev: The phy_device struct
|
|
* @devad: The MMD to read from
|
|
* @regnum: The register on the MMD to read
|
|
*
|
|
* Same rules as for phy_read();
|
|
*/
|
|
int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
|
|
|
|
/**
|
|
* phy_read - Convenience function for reading a given PHY register
|
|
* @phydev: the phy_device struct
|
|
* @regnum: register number to read
|
|
*
|
|
* NOTE: MUST NOT be called from interrupt context,
|
|
* because the bus read/write functions may wait for an interrupt
|
|
* to conclude the operation.
|
|
*/
|
|
static inline int phy_read(struct phy_device *phydev, u32 regnum)
|
|
{
|
|
return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
|
|
}
|
|
|
|
/**
|
|
* phy_write - Convenience function for writing a given PHY register
|
|
* @phydev: the phy_device struct
|
|
* @regnum: register number to write
|
|
* @val: value to write to @regnum
|
|
*
|
|
* NOTE: MUST NOT be called from interrupt context,
|
|
* because the bus read/write functions may wait for an interrupt
|
|
* to conclude the operation.
|
|
*/
|
|
static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
|
|
{
|
|
return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
|
|
}
|
|
|
|
/**
|
|
* phy_interrupt_is_valid - Convenience function for testing a given PHY irq
|
|
* @phydev: the phy_device struct
|
|
*
|
|
* NOTE: must be kept in sync with addition/removal of PHY_POLL and
|
|
* PHY_IGNORE_INTERRUPT
|
|
*/
|
|
static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
|
|
{
|
|
return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
|
|
}
|
|
|
|
/**
|
|
* phy_is_internal - Convenience function for testing if a PHY is internal
|
|
* @phydev: the phy_device struct
|
|
*/
|
|
static inline bool phy_is_internal(struct phy_device *phydev)
|
|
{
|
|
return phydev->is_internal;
|
|
}
|
|
|
|
/**
|
|
* phy_interface_mode_is_rgmii - Convenience function for testing if a
|
|
* PHY interface mode is RGMII (all variants)
|
|
* @mode: the phy_interface_t enum
|
|
*/
|
|
static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
|
|
{
|
|
return mode >= PHY_INTERFACE_MODE_RGMII &&
|
|
mode <= PHY_INTERFACE_MODE_RGMII_TXID;
|
|
};
|
|
|
|
/**
|
|
* phy_interface_is_rgmii - Convenience function for testing if a PHY interface
|
|
* is RGMII (all variants)
|
|
* @phydev: the phy_device struct
|
|
*/
|
|
static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
|
|
{
|
|
return phy_interface_mode_is_rgmii(phydev->interface);
|
|
};
|
|
|
|
/*
|
|
* phy_is_pseudo_fixed_link - Convenience function for testing if this
|
|
* PHY is the CPU port facing side of an Ethernet switch, or similar.
|
|
* @phydev: the phy_device struct
|
|
*/
|
|
static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
|
|
{
|
|
return phydev->is_pseudo_fixed_link;
|
|
}
|
|
|
|
/**
|
|
* phy_write_mmd - Convenience function for writing a register
|
|
* on an MMD on a given PHY.
|
|
* @phydev: The phy_device struct
|
|
* @devad: The MMD to read from
|
|
* @regnum: The register on the MMD to read
|
|
* @val: value to write to @regnum
|
|
*
|
|
* Same rules as for phy_write();
|
|
*/
|
|
int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
|
|
|
|
struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
|
|
bool is_c45,
|
|
struct phy_c45_device_ids *c45_ids);
|
|
#if IS_ENABLED(CONFIG_PHYLIB)
|
|
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
|
|
int phy_device_register(struct phy_device *phy);
|
|
void phy_device_free(struct phy_device *phydev);
|
|
#else
|
|
static inline
|
|
struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int phy_device_register(struct phy_device *phy)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void phy_device_free(struct phy_device *phydev) { }
|
|
#endif /* CONFIG_PHYLIB */
|
|
void phy_device_remove(struct phy_device *phydev);
|
|
int phy_init_hw(struct phy_device *phydev);
|
|
int phy_suspend(struct phy_device *phydev);
|
|
int phy_resume(struct phy_device *phydev);
|
|
int phy_loopback(struct phy_device *phydev, bool enable);
|
|
struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
|
|
phy_interface_t interface);
|
|
struct phy_device *phy_find_first(struct mii_bus *bus);
|
|
int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
|
|
u32 flags, phy_interface_t interface);
|
|
int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
|
|
void (*handler)(struct net_device *),
|
|
phy_interface_t interface);
|
|
struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
|
|
void (*handler)(struct net_device *),
|
|
phy_interface_t interface);
|
|
void phy_disconnect(struct phy_device *phydev);
|
|
void phy_detach(struct phy_device *phydev);
|
|
void phy_start(struct phy_device *phydev);
|
|
void phy_stop(struct phy_device *phydev);
|
|
int phy_start_aneg(struct phy_device *phydev);
|
|
int phy_aneg_done(struct phy_device *phydev);
|
|
|
|
int phy_stop_interrupts(struct phy_device *phydev);
|
|
int phy_restart_aneg(struct phy_device *phydev);
|
|
|
|
static inline int phy_read_status(struct phy_device *phydev)
|
|
{
|
|
if (!phydev->drv)
|
|
return -EIO;
|
|
|
|
return phydev->drv->read_status(phydev);
|
|
}
|
|
|
|
#define phydev_err(_phydev, format, args...) \
|
|
dev_err(&_phydev->mdio.dev, format, ##args)
|
|
|
|
#define phydev_dbg(_phydev, format, args...) \
|
|
dev_dbg(&_phydev->mdio.dev, format, ##args);
|
|
|
|
static inline const char *phydev_name(const struct phy_device *phydev)
|
|
{
|
|
return dev_name(&phydev->mdio.dev);
|
|
}
|
|
|
|
void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
|
|
__printf(2, 3);
|
|
void phy_attached_info(struct phy_device *phydev);
|
|
|
|
/* Clause 22 PHY */
|
|
int genphy_config_init(struct phy_device *phydev);
|
|
int genphy_setup_forced(struct phy_device *phydev);
|
|
int genphy_restart_aneg(struct phy_device *phydev);
|
|
int genphy_config_aneg(struct phy_device *phydev);
|
|
int genphy_aneg_done(struct phy_device *phydev);
|
|
int genphy_update_link(struct phy_device *phydev);
|
|
int genphy_read_status(struct phy_device *phydev);
|
|
int genphy_suspend(struct phy_device *phydev);
|
|
int genphy_resume(struct phy_device *phydev);
|
|
int genphy_loopback(struct phy_device *phydev, bool enable);
|
|
int genphy_soft_reset(struct phy_device *phydev);
|
|
static inline int genphy_no_soft_reset(struct phy_device *phydev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Clause 45 PHY */
|
|
int genphy_c45_restart_aneg(struct phy_device *phydev);
|
|
int genphy_c45_aneg_done(struct phy_device *phydev);
|
|
int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask);
|
|
int genphy_c45_read_lpa(struct phy_device *phydev);
|
|
int genphy_c45_read_pma(struct phy_device *phydev);
|
|
int genphy_c45_pma_setup_forced(struct phy_device *phydev);
|
|
int genphy_c45_an_disable_aneg(struct phy_device *phydev);
|
|
|
|
void phy_driver_unregister(struct phy_driver *drv);
|
|
void phy_drivers_unregister(struct phy_driver *drv, int n);
|
|
int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
|
|
int phy_drivers_register(struct phy_driver *new_driver, int n,
|
|
struct module *owner);
|
|
void phy_state_machine(struct work_struct *work);
|
|
void phy_change(struct phy_device *phydev);
|
|
void phy_change_work(struct work_struct *work);
|
|
void phy_mac_interrupt(struct phy_device *phydev, int new_link);
|
|
void phy_start_machine(struct phy_device *phydev);
|
|
void phy_stop_machine(struct phy_device *phydev);
|
|
void phy_trigger_machine(struct phy_device *phydev, bool sync);
|
|
int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
|
|
void phy_ethtool_ksettings_get(struct phy_device *phydev,
|
|
struct ethtool_link_ksettings *cmd);
|
|
int phy_ethtool_ksettings_set(struct phy_device *phydev,
|
|
const struct ethtool_link_ksettings *cmd);
|
|
int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
|
|
int phy_start_interrupts(struct phy_device *phydev);
|
|
void phy_print_status(struct phy_device *phydev);
|
|
int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
|
|
|
|
int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
|
|
int (*run)(struct phy_device *));
|
|
int phy_register_fixup_for_id(const char *bus_id,
|
|
int (*run)(struct phy_device *));
|
|
int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
|
|
int (*run)(struct phy_device *));
|
|
|
|
int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
|
|
int phy_unregister_fixup_for_id(const char *bus_id);
|
|
int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
|
|
|
|
int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
|
|
int phy_get_eee_err(struct phy_device *phydev);
|
|
int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
|
|
int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
|
|
int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
|
|
void phy_ethtool_get_wol(struct phy_device *phydev,
|
|
struct ethtool_wolinfo *wol);
|
|
int phy_ethtool_get_link_ksettings(struct net_device *ndev,
|
|
struct ethtool_link_ksettings *cmd);
|
|
int phy_ethtool_set_link_ksettings(struct net_device *ndev,
|
|
const struct ethtool_link_ksettings *cmd);
|
|
int phy_ethtool_nway_reset(struct net_device *ndev);
|
|
|
|
#if IS_ENABLED(CONFIG_PHYLIB)
|
|
int __init mdio_bus_init(void);
|
|
void mdio_bus_exit(void);
|
|
#endif
|
|
|
|
extern struct bus_type mdio_bus_type;
|
|
|
|
struct mdio_board_info {
|
|
const char *bus_id;
|
|
char modalias[MDIO_NAME_SIZE];
|
|
int mdio_addr;
|
|
const void *platform_data;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_MDIO_DEVICE)
|
|
int mdiobus_register_board_info(const struct mdio_board_info *info,
|
|
unsigned int n);
|
|
#else
|
|
static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
|
|
unsigned int n)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
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/**
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* module_phy_driver() - Helper macro for registering PHY drivers
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* @__phy_drivers: array of PHY drivers to register
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*
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* Helper macro for PHY drivers which do not do anything special in module
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* init/exit. Each module may only use this macro once, and calling it
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* replaces module_init() and module_exit().
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*/
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#define phy_module_driver(__phy_drivers, __count) \
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static int __init phy_module_init(void) \
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{ \
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return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
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} \
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module_init(phy_module_init); \
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static void __exit phy_module_exit(void) \
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{ \
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phy_drivers_unregister(__phy_drivers, __count); \
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} \
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module_exit(phy_module_exit)
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#define module_phy_driver(__phy_drivers) \
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phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
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#endif /* __PHY_H */
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