include/linux/phy.h

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
phy_modes
mdiobus_alloc
devm_mdiobus_alloc
phy_is_started
phy_read
__phy_read
phy_write
__phy_write
__phy_set_bits
__phy_clear_bits
phy_set_bits
phy_clear_bits
__phy_set_bits_mmd
__phy_clear_bits_mmd
phy_set_bits_mmd
phy_clear_bits_mmd
phy_interrupt_is_valid
phy_polling_mode
phy_is_internal
phy_interface_mode_is_rgmii
phy_interface_mode_is_8023z
phy_interface_is_rgmii
phy_is_pseudo_fixed_link
get_phy_device
phy_device_register
phy_device_free
phy_device_reset
phydev_name
phy_attached_print
genphy_no_soft_reset
genphy_no_ack_interrupt
genphy_no_config_intr
phy_read_status
phy_ethtool_get_strings
phy_ethtool_get_sset_count
phy_ethtool_get_stats
mdiobus_register_board_info
   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Framework and drivers for configuring and reading different PHYs
   4  * Based on code in sungem_phy.c and (long-removed) gianfar_phy.c
   5  *
   6  * Author: Andy Fleming
   7  *
   8  * Copyright (c) 2004 Freescale Semiconductor, Inc.
   9  */
  10 
  11 #ifndef __PHY_H
  12 #define __PHY_H
  13 
  14 #include <linux/compiler.h>
  15 #include <linux/spinlock.h>
  16 #include <linux/ethtool.h>
  17 #include <linux/linkmode.h>
  18 #include <linux/mdio.h>
  19 #include <linux/mii.h>
  20 #include <linux/module.h>
  21 #include <linux/timer.h>
  22 #include <linux/workqueue.h>
  23 #include <linux/mod_devicetable.h>
  24 
  25 #include <linux/atomic.h>
  26 
  27 #define PHY_DEFAULT_FEATURES    (SUPPORTED_Autoneg | \
  28                                  SUPPORTED_TP | \
  29                                  SUPPORTED_MII)
  30 
  31 #define PHY_10BT_FEATURES       (SUPPORTED_10baseT_Half | \
  32                                  SUPPORTED_10baseT_Full)
  33 
  34 #define PHY_100BT_FEATURES      (SUPPORTED_100baseT_Half | \
  35                                  SUPPORTED_100baseT_Full)
  36 
  37 #define PHY_1000BT_FEATURES     (SUPPORTED_1000baseT_Half | \
  38                                  SUPPORTED_1000baseT_Full)
  39 
  40 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init;
  41 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init;
  42 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init;
  43 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init;
  44 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init;
  45 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init;
  46 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init;
  47 extern __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
  48 
  49 #define PHY_BASIC_FEATURES ((unsigned long *)&phy_basic_features)
  50 #define PHY_BASIC_T1_FEATURES ((unsigned long *)&phy_basic_t1_features)
  51 #define PHY_GBIT_FEATURES ((unsigned long *)&phy_gbit_features)
  52 #define PHY_GBIT_FIBRE_FEATURES ((unsigned long *)&phy_gbit_fibre_features)
  53 #define PHY_GBIT_ALL_PORTS_FEATURES ((unsigned long *)&phy_gbit_all_ports_features)
  54 #define PHY_10GBIT_FEATURES ((unsigned long *)&phy_10gbit_features)
  55 #define PHY_10GBIT_FEC_FEATURES ((unsigned long *)&phy_10gbit_fec_features)
  56 #define PHY_10GBIT_FULL_FEATURES ((unsigned long *)&phy_10gbit_full_features)
  57 
  58 extern const int phy_basic_ports_array[3];
  59 extern const int phy_fibre_port_array[1];
  60 extern const int phy_all_ports_features_array[7];
  61 extern const int phy_10_100_features_array[4];
  62 extern const int phy_basic_t1_features_array[2];
  63 extern const int phy_gbit_features_array[2];
  64 extern const int phy_10gbit_features_array[1];
  65 
  66 /*
  67  * Set phydev->irq to PHY_POLL if interrupts are not supported,
  68  * or not desired for this PHY.  Set to PHY_IGNORE_INTERRUPT if
  69  * the attached driver handles the interrupt
  70  */
  71 #define PHY_POLL                -1
  72 #define PHY_IGNORE_INTERRUPT    -2
  73 
  74 #define PHY_IS_INTERNAL         0x00000001
  75 #define PHY_RST_AFTER_CLK_EN    0x00000002
  76 #define MDIO_DEVICE_IS_PHY      0x80000000
  77 
  78 /* Interface Mode definitions */
  79 typedef enum {
  80         PHY_INTERFACE_MODE_NA,
  81         PHY_INTERFACE_MODE_INTERNAL,
  82         PHY_INTERFACE_MODE_MII,
  83         PHY_INTERFACE_MODE_GMII,
  84         PHY_INTERFACE_MODE_SGMII,
  85         PHY_INTERFACE_MODE_TBI,
  86         PHY_INTERFACE_MODE_REVMII,
  87         PHY_INTERFACE_MODE_RMII,
  88         PHY_INTERFACE_MODE_RGMII,
  89         PHY_INTERFACE_MODE_RGMII_ID,
  90         PHY_INTERFACE_MODE_RGMII_RXID,
  91         PHY_INTERFACE_MODE_RGMII_TXID,
  92         PHY_INTERFACE_MODE_RTBI,
  93         PHY_INTERFACE_MODE_SMII,
  94         PHY_INTERFACE_MODE_XGMII,
  95         PHY_INTERFACE_MODE_MOCA,
  96         PHY_INTERFACE_MODE_QSGMII,
  97         PHY_INTERFACE_MODE_TRGMII,
  98         PHY_INTERFACE_MODE_1000BASEX,
  99         PHY_INTERFACE_MODE_2500BASEX,
 100         PHY_INTERFACE_MODE_RXAUI,
 101         PHY_INTERFACE_MODE_XAUI,
 102         /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */
 103         PHY_INTERFACE_MODE_10GKR,
 104         PHY_INTERFACE_MODE_USXGMII,
 105         PHY_INTERFACE_MODE_MAX,
 106 } phy_interface_t;
 107 
 108 /**
 109  * phy_supported_speeds - return all speeds currently supported by a phy device
 110  * @phy: The phy device to return supported speeds of.
 111  * @speeds: buffer to store supported speeds in.
 112  * @size: size of speeds buffer.
 113  *
 114  * Description: Returns the number of supported speeds, and fills
 115  * the speeds buffer with the supported speeds. If speeds buffer is
 116  * too small to contain all currently supported speeds, will return as
 117  * many speeds as can fit.
 118  */
 119 unsigned int phy_supported_speeds(struct phy_device *phy,
 120                                       unsigned int *speeds,
 121                                       unsigned int size);
 122 
 123 /**
 124  * phy_modes - map phy_interface_t enum to device tree binding of phy-mode
 125  * @interface: enum phy_interface_t value
 126  *
 127  * Description: maps 'enum phy_interface_t' defined in this file
 128  * into the device tree binding of 'phy-mode', so that Ethernet
 129  * device driver can get phy interface from device tree.
 130  */
 131 static inline const char *phy_modes(phy_interface_t interface)
 132 {
 133         switch (interface) {
 134         case PHY_INTERFACE_MODE_NA:
 135                 return "";
 136         case PHY_INTERFACE_MODE_INTERNAL:
 137                 return "internal";
 138         case PHY_INTERFACE_MODE_MII:
 139                 return "mii";
 140         case PHY_INTERFACE_MODE_GMII:
 141                 return "gmii";
 142         case PHY_INTERFACE_MODE_SGMII:
 143                 return "sgmii";
 144         case PHY_INTERFACE_MODE_TBI:
 145                 return "tbi";
 146         case PHY_INTERFACE_MODE_REVMII:
 147                 return "rev-mii";
 148         case PHY_INTERFACE_MODE_RMII:
 149                 return "rmii";
 150         case PHY_INTERFACE_MODE_RGMII:
 151                 return "rgmii";
 152         case PHY_INTERFACE_MODE_RGMII_ID:
 153                 return "rgmii-id";
 154         case PHY_INTERFACE_MODE_RGMII_RXID:
 155                 return "rgmii-rxid";
 156         case PHY_INTERFACE_MODE_RGMII_TXID:
 157                 return "rgmii-txid";
 158         case PHY_INTERFACE_MODE_RTBI:
 159                 return "rtbi";
 160         case PHY_INTERFACE_MODE_SMII:
 161                 return "smii";
 162         case PHY_INTERFACE_MODE_XGMII:
 163                 return "xgmii";
 164         case PHY_INTERFACE_MODE_MOCA:
 165                 return "moca";
 166         case PHY_INTERFACE_MODE_QSGMII:
 167                 return "qsgmii";
 168         case PHY_INTERFACE_MODE_TRGMII:
 169                 return "trgmii";
 170         case PHY_INTERFACE_MODE_1000BASEX:
 171                 return "1000base-x";
 172         case PHY_INTERFACE_MODE_2500BASEX:
 173                 return "2500base-x";
 174         case PHY_INTERFACE_MODE_RXAUI:
 175                 return "rxaui";
 176         case PHY_INTERFACE_MODE_XAUI:
 177                 return "xaui";
 178         case PHY_INTERFACE_MODE_10GKR:
 179                 return "10gbase-kr";
 180         case PHY_INTERFACE_MODE_USXGMII:
 181                 return "usxgmii";
 182         default:
 183                 return "unknown";
 184         }
 185 }
 186 
 187 
 188 #define PHY_INIT_TIMEOUT        100000
 189 #define PHY_FORCE_TIMEOUT       10
 190 
 191 #define PHY_MAX_ADDR    32
 192 
 193 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
 194 #define PHY_ID_FMT "%s:%02x"
 195 
 196 #define MII_BUS_ID_SIZE 61
 197 
 198 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
 199    IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
 200 #define MII_ADDR_C45 (1<<30)
 201 #define MII_DEVADDR_C45_SHIFT   16
 202 #define MII_REGADDR_C45_MASK    GENMASK(15, 0)
 203 
 204 struct device;
 205 struct phylink;
 206 struct sk_buff;
 207 
 208 /*
 209  * The Bus class for PHYs.  Devices which provide access to
 210  * PHYs should register using this structure
 211  */
 212 struct mii_bus {
 213         struct module *owner;
 214         const char *name;
 215         char id[MII_BUS_ID_SIZE];
 216         void *priv;
 217         int (*read)(struct mii_bus *bus, int addr, int regnum);
 218         int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
 219         int (*reset)(struct mii_bus *bus);
 220 
 221         /*
 222          * A lock to ensure that only one thing can read/write
 223          * the MDIO bus at a time
 224          */
 225         struct mutex mdio_lock;
 226 
 227         struct device *parent;
 228         enum {
 229                 MDIOBUS_ALLOCATED = 1,
 230                 MDIOBUS_REGISTERED,
 231                 MDIOBUS_UNREGISTERED,
 232                 MDIOBUS_RELEASED,
 233         } state;
 234         struct device dev;
 235 
 236         /* list of all PHYs on bus */
 237         struct mdio_device *mdio_map[PHY_MAX_ADDR];
 238 
 239         /* PHY addresses to be ignored when probing */
 240         u32 phy_mask;
 241 
 242         /* PHY addresses to ignore the TA/read failure */
 243         u32 phy_ignore_ta_mask;
 244 
 245         /*
 246          * An array of interrupts, each PHY's interrupt at the index
 247          * matching its address
 248          */
 249         int irq[PHY_MAX_ADDR];
 250 
 251         /* GPIO reset pulse width in microseconds */
 252         int reset_delay_us;
 253         /* RESET GPIO descriptor pointer */
 254         struct gpio_desc *reset_gpiod;
 255 };
 256 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
 257 
 258 struct mii_bus *mdiobus_alloc_size(size_t);
 259 static inline struct mii_bus *mdiobus_alloc(void)
 260 {
 261         return mdiobus_alloc_size(0);
 262 }
 263 
 264 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
 265 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
 266 void mdiobus_unregister(struct mii_bus *bus);
 267 void mdiobus_free(struct mii_bus *bus);
 268 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
 269 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
 270 {
 271         return devm_mdiobus_alloc_size(dev, 0);
 272 }
 273 
 274 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
 275 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
 276 
 277 #define PHY_INTERRUPT_DISABLED  false
 278 #define PHY_INTERRUPT_ENABLED   true
 279 
 280 /* PHY state machine states:
 281  *
 282  * DOWN: PHY device and driver are not ready for anything.  probe
 283  * should be called if and only if the PHY is in this state,
 284  * given that the PHY device exists.
 285  * - PHY driver probe function will set the state to READY
 286  *
 287  * READY: PHY is ready to send and receive packets, but the
 288  * controller is not.  By default, PHYs which do not implement
 289  * probe will be set to this state by phy_probe().
 290  * - start will set the state to UP
 291  *
 292  * UP: The PHY and attached device are ready to do work.
 293  * Interrupts should be started here.
 294  * - timer moves to NOLINK or RUNNING
 295  *
 296  * NOLINK: PHY is up, but not currently plugged in.
 297  * - irq or timer will set RUNNING if link comes back
 298  * - phy_stop moves to HALTED
 299  *
 300  * RUNNING: PHY is currently up, running, and possibly sending
 301  * and/or receiving packets
 302  * - irq or timer will set NOLINK if link goes down
 303  * - phy_stop moves to HALTED
 304  *
 305  * HALTED: PHY is up, but no polling or interrupts are done. Or
 306  * PHY is in an error state.
 307  * - phy_start moves to UP
 308  */
 309 enum phy_state {
 310         PHY_DOWN = 0,
 311         PHY_READY,
 312         PHY_HALTED,
 313         PHY_UP,
 314         PHY_RUNNING,
 315         PHY_NOLINK,
 316 };
 317 
 318 /**
 319  * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
 320  * @devices_in_package: Bit vector of devices present.
 321  * @device_ids: The device identifer for each present device.
 322  */
 323 struct phy_c45_device_ids {
 324         u32 devices_in_package;
 325         u32 device_ids[8];
 326 };
 327 
 328 /* phy_device: An instance of a PHY
 329  *
 330  * drv: Pointer to the driver for this PHY instance
 331  * phy_id: UID for this device found during discovery
 332  * c45_ids: 802.3-c45 Device Identifers if is_c45.
 333  * is_c45:  Set to true if this phy uses clause 45 addressing.
 334  * is_internal: Set to true if this phy is internal to a MAC.
 335  * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc.
 336  * is_gigabit_capable: Set to true if PHY supports 1000Mbps
 337  * has_fixups: Set to true if this phy has fixups/quirks.
 338  * suspended: Set to true if this phy has been suspended successfully.
 339  * suspended_by_mdio_bus: Set to true if this phy was suspended by MDIO bus.
 340  * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
 341  * loopback_enabled: Set true if this phy has been loopbacked successfully.
 342  * state: state of the PHY for management purposes
 343  * dev_flags: Device-specific flags used by the PHY driver.
 344  * irq: IRQ number of the PHY's interrupt (-1 if none)
 345  * phy_timer: The timer for handling the state machine
 346  * attached_dev: The attached enet driver's device instance ptr
 347  * adjust_link: Callback for the enet controller to respond to
 348  * changes in the link state.
 349  *
 350  * speed, duplex, pause, supported, advertising, lp_advertising,
 351  * and autoneg are used like in mii_if_info
 352  *
 353  * interrupts currently only supports enabled or disabled,
 354  * but could be changed in the future to support enabling
 355  * and disabling specific interrupts
 356  *
 357  * Contains some infrastructure for polling and interrupt
 358  * handling, as well as handling shifts in PHY hardware state
 359  */
 360 struct phy_device {
 361         struct mdio_device mdio;
 362 
 363         /* Information about the PHY type */
 364         /* And management functions */
 365         struct phy_driver *drv;
 366 
 367         u32 phy_id;
 368 
 369         struct phy_c45_device_ids c45_ids;
 370         unsigned is_c45:1;
 371         unsigned is_internal:1;
 372         unsigned is_pseudo_fixed_link:1;
 373         unsigned is_gigabit_capable:1;
 374         unsigned has_fixups:1;
 375         unsigned suspended:1;
 376         unsigned suspended_by_mdio_bus:1;
 377         unsigned sysfs_links:1;
 378         unsigned loopback_enabled:1;
 379 
 380         unsigned autoneg:1;
 381         /* The most recently read link state */
 382         unsigned link:1;
 383         unsigned autoneg_complete:1;
 384 
 385         /* Interrupts are enabled */
 386         unsigned interrupts:1;
 387 
 388         enum phy_state state;
 389 
 390         u32 dev_flags;
 391 
 392         phy_interface_t interface;
 393 
 394         /*
 395          * forced speed & duplex (no autoneg)
 396          * partner speed & duplex & pause (autoneg)
 397          */
 398         int speed;
 399         int duplex;
 400         int pause;
 401         int asym_pause;
 402 
 403         /* Union of PHY and Attached devices' supported link modes */
 404         /* See ethtool.h for more info */
 405         __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
 406         __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
 407         __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
 408         /* used with phy_speed_down */
 409         __ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
 410 
 411         /* Energy efficient ethernet modes which should be prohibited */
 412         u32 eee_broken_modes;
 413 
 414 #ifdef CONFIG_LED_TRIGGER_PHY
 415         struct phy_led_trigger *phy_led_triggers;
 416         unsigned int phy_num_led_triggers;
 417         struct phy_led_trigger *last_triggered;
 418 
 419         struct phy_led_trigger *led_link_trigger;
 420 #endif
 421 
 422         /*
 423          * Interrupt number for this PHY
 424          * -1 means no interrupt
 425          */
 426         int irq;
 427 
 428         /* private data pointer */
 429         /* For use by PHYs to maintain extra state */
 430         void *priv;
 431 
 432         /* Interrupt and Polling infrastructure */
 433         struct delayed_work state_queue;
 434 
 435         struct mutex lock;
 436 
 437         struct phylink *phylink;
 438         struct net_device *attached_dev;
 439 
 440         u8 mdix;
 441         u8 mdix_ctrl;
 442 
 443         void (*phy_link_change)(struct phy_device *, bool up, bool do_carrier);
 444         void (*adjust_link)(struct net_device *dev);
 445 };
 446 #define to_phy_device(d) container_of(to_mdio_device(d), \
 447                                       struct phy_device, mdio)
 448 
 449 /* struct phy_driver: Driver structure for a particular PHY type
 450  *
 451  * driver_data: static driver data
 452  * phy_id: The result of reading the UID registers of this PHY
 453  *   type, and ANDing them with the phy_id_mask.  This driver
 454  *   only works for PHYs with IDs which match this field
 455  * name: The friendly name of this PHY type
 456  * phy_id_mask: Defines the important bits of the phy_id
 457  * features: A mandatory list of features (speed, duplex, etc)
 458  *   supported by this PHY
 459  * flags: A bitfield defining certain other features this PHY
 460  *   supports (like interrupts)
 461  *
 462  * All functions are optional. If config_aneg or read_status
 463  * are not implemented, the phy core uses the genphy versions.
 464  * Note that none of these functions should be called from
 465  * interrupt time. The goal is for the bus read/write functions
 466  * to be able to block when the bus transaction is happening,
 467  * and be freed up by an interrupt (The MPC85xx has this ability,
 468  * though it is not currently supported in the driver).
 469  */
 470 struct phy_driver {
 471         struct mdio_driver_common mdiodrv;
 472         u32 phy_id;
 473         char *name;
 474         u32 phy_id_mask;
 475         const unsigned long * const features;
 476         u32 flags;
 477         const void *driver_data;
 478 
 479         /*
 480          * Called to issue a PHY software reset
 481          */
 482         int (*soft_reset)(struct phy_device *phydev);
 483 
 484         /*
 485          * Called to initialize the PHY,
 486          * including after a reset
 487          */
 488         int (*config_init)(struct phy_device *phydev);
 489 
 490         /*
 491          * Called during discovery.  Used to set
 492          * up device-specific structures, if any
 493          */
 494         int (*probe)(struct phy_device *phydev);
 495 
 496         /*
 497          * Probe the hardware to determine what abilities it has.
 498          * Should only set phydev->supported.
 499          */
 500         int (*get_features)(struct phy_device *phydev);
 501 
 502         /* PHY Power Management */
 503         int (*suspend)(struct phy_device *phydev);
 504         int (*resume)(struct phy_device *phydev);
 505 
 506         /*
 507          * Configures the advertisement and resets
 508          * autonegotiation if phydev->autoneg is on,
 509          * forces the speed to the current settings in phydev
 510          * if phydev->autoneg is off
 511          */
 512         int (*config_aneg)(struct phy_device *phydev);
 513 
 514         /* Determines the auto negotiation result */
 515         int (*aneg_done)(struct phy_device *phydev);
 516 
 517         /* Determines the negotiated speed and duplex */
 518         int (*read_status)(struct phy_device *phydev);
 519 
 520         /* Clears any pending interrupts */
 521         int (*ack_interrupt)(struct phy_device *phydev);
 522 
 523         /* Enables or disables interrupts */
 524         int (*config_intr)(struct phy_device *phydev);
 525 
 526         /*
 527          * Checks if the PHY generated an interrupt.
 528          * For multi-PHY devices with shared PHY interrupt pin
 529          * Set interrupt bits have to be cleared.
 530          */
 531         int (*did_interrupt)(struct phy_device *phydev);
 532 
 533         /* Override default interrupt handling */
 534         int (*handle_interrupt)(struct phy_device *phydev);
 535 
 536         /* Clears up any memory if needed */
 537         void (*remove)(struct phy_device *phydev);
 538 
 539         /* Returns true if this is a suitable driver for the given
 540          * phydev.  If NULL, matching is based on phy_id and
 541          * phy_id_mask.
 542          */
 543         int (*match_phy_device)(struct phy_device *phydev);
 544 
 545         /* Handles ethtool queries for hardware time stamping. */
 546         int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
 547 
 548         /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
 549         int  (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
 550 
 551         /*
 552          * Requests a Rx timestamp for 'skb'. If the skb is accepted,
 553          * the phy driver promises to deliver it using netif_rx() as
 554          * soon as a timestamp becomes available. One of the
 555          * PTP_CLASS_ values is passed in 'type'. The function must
 556          * return true if the skb is accepted for delivery.
 557          */
 558         bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
 559 
 560         /*
 561          * Requests a Tx timestamp for 'skb'. The phy driver promises
 562          * to deliver it using skb_complete_tx_timestamp() as soon as a
 563          * timestamp becomes available. One of the PTP_CLASS_ values
 564          * is passed in 'type'.
 565          */
 566         void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
 567 
 568         /* Some devices (e.g. qnap TS-119P II) require PHY register changes to
 569          * enable Wake on LAN, so set_wol is provided to be called in the
 570          * ethernet driver's set_wol function. */
 571         int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
 572 
 573         /* See set_wol, but for checking whether Wake on LAN is enabled. */
 574         void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
 575 
 576         /*
 577          * Called to inform a PHY device driver when the core is about to
 578          * change the link state. This callback is supposed to be used as
 579          * fixup hook for drivers that need to take action when the link
 580          * state changes. Drivers are by no means allowed to mess with the
 581          * PHY device structure in their implementations.
 582          */
 583         void (*link_change_notify)(struct phy_device *dev);
 584 
 585         /*
 586          * Phy specific driver override for reading a MMD register.
 587          * This function is optional for PHY specific drivers.  When
 588          * not provided, the default MMD read function will be used
 589          * by phy_read_mmd(), which will use either a direct read for
 590          * Clause 45 PHYs or an indirect read for Clause 22 PHYs.
 591          *  devnum is the MMD device number within the PHY device,
 592          *  regnum is the register within the selected MMD device.
 593          */
 594         int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
 595 
 596         /*
 597          * Phy specific driver override for writing a MMD register.
 598          * This function is optional for PHY specific drivers.  When
 599          * not provided, the default MMD write function will be used
 600          * by phy_write_mmd(), which will use either a direct write for
 601          * Clause 45 PHYs, or an indirect write for Clause 22 PHYs.
 602          *  devnum is the MMD device number within the PHY device,
 603          *  regnum is the register within the selected MMD device.
 604          *  val is the value to be written.
 605          */
 606         int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
 607                          u16 val);
 608 
 609         int (*read_page)(struct phy_device *dev);
 610         int (*write_page)(struct phy_device *dev, int page);
 611 
 612         /* Get the size and type of the eeprom contained within a plug-in
 613          * module */
 614         int (*module_info)(struct phy_device *dev,
 615                            struct ethtool_modinfo *modinfo);
 616 
 617         /* Get the eeprom information from the plug-in module */
 618         int (*module_eeprom)(struct phy_device *dev,
 619                              struct ethtool_eeprom *ee, u8 *data);
 620 
 621         /* Get statistics from the phy using ethtool */
 622         int (*get_sset_count)(struct phy_device *dev);
 623         void (*get_strings)(struct phy_device *dev, u8 *data);
 624         void (*get_stats)(struct phy_device *dev,
 625                           struct ethtool_stats *stats, u64 *data);
 626 
 627         /* Get and Set PHY tunables */
 628         int (*get_tunable)(struct phy_device *dev,
 629                            struct ethtool_tunable *tuna, void *data);
 630         int (*set_tunable)(struct phy_device *dev,
 631                             struct ethtool_tunable *tuna,
 632                             const void *data);
 633         int (*set_loopback)(struct phy_device *dev, bool enable);
 634 };
 635 #define to_phy_driver(d) container_of(to_mdio_common_driver(d),         \
 636                                       struct phy_driver, mdiodrv)
 637 
 638 #define PHY_ANY_ID "MATCH ANY PHY"
 639 #define PHY_ANY_UID 0xffffffff
 640 
 641 #define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
 642 #define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
 643 #define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
 644 
 645 /* A Structure for boards to register fixups with the PHY Lib */
 646 struct phy_fixup {
 647         struct list_head list;
 648         char bus_id[MII_BUS_ID_SIZE + 3];
 649         u32 phy_uid;
 650         u32 phy_uid_mask;
 651         int (*run)(struct phy_device *phydev);
 652 };
 653 
 654 const char *phy_speed_to_str(int speed);
 655 const char *phy_duplex_to_str(unsigned int duplex);
 656 
 657 /* A structure for mapping a particular speed and duplex
 658  * combination to a particular SUPPORTED and ADVERTISED value
 659  */
 660 struct phy_setting {
 661         u32 speed;
 662         u8 duplex;
 663         u8 bit;
 664 };
 665 
 666 const struct phy_setting *
 667 phy_lookup_setting(int speed, int duplex, const unsigned long *mask,
 668                    bool exact);
 669 size_t phy_speeds(unsigned int *speeds, size_t size,
 670                   unsigned long *mask);
 671 void of_set_phy_supported(struct phy_device *phydev);
 672 void of_set_phy_eee_broken(struct phy_device *phydev);
 673 int phy_speed_down_core(struct phy_device *phydev);
 674 
 675 /**
 676  * phy_is_started - Convenience function to check whether PHY is started
 677  * @phydev: The phy_device struct
 678  */
 679 static inline bool phy_is_started(struct phy_device *phydev)
 680 {
 681         return phydev->state >= PHY_UP;
 682 }
 683 
 684 void phy_resolve_aneg_pause(struct phy_device *phydev);
 685 void phy_resolve_aneg_linkmode(struct phy_device *phydev);
 686 
 687 /**
 688  * phy_read - Convenience function for reading a given PHY register
 689  * @phydev: the phy_device struct
 690  * @regnum: register number to read
 691  *
 692  * NOTE: MUST NOT be called from interrupt context,
 693  * because the bus read/write functions may wait for an interrupt
 694  * to conclude the operation.
 695  */
 696 static inline int phy_read(struct phy_device *phydev, u32 regnum)
 697 {
 698         return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
 699 }
 700 
 701 /**
 702  * __phy_read - convenience function for reading a given PHY register
 703  * @phydev: the phy_device struct
 704  * @regnum: register number to read
 705  *
 706  * The caller must have taken the MDIO bus lock.
 707  */
 708 static inline int __phy_read(struct phy_device *phydev, u32 regnum)
 709 {
 710         return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
 711 }
 712 
 713 /**
 714  * phy_write - Convenience function for writing a given PHY register
 715  * @phydev: the phy_device struct
 716  * @regnum: register number to write
 717  * @val: value to write to @regnum
 718  *
 719  * NOTE: MUST NOT be called from interrupt context,
 720  * because the bus read/write functions may wait for an interrupt
 721  * to conclude the operation.
 722  */
 723 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
 724 {
 725         return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
 726 }
 727 
 728 /**
 729  * __phy_write - Convenience function for writing a given PHY register
 730  * @phydev: the phy_device struct
 731  * @regnum: register number to write
 732  * @val: value to write to @regnum
 733  *
 734  * The caller must have taken the MDIO bus lock.
 735  */
 736 static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
 737 {
 738         return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
 739                                val);
 740 }
 741 
 742 /**
 743  * phy_read_mmd - Convenience function for reading a register
 744  * from an MMD on a given PHY.
 745  * @phydev: The phy_device struct
 746  * @devad: The MMD to read from
 747  * @regnum: The register on the MMD to read
 748  *
 749  * Same rules as for phy_read();
 750  */
 751 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
 752 
 753 /**
 754  * __phy_read_mmd - Convenience function for reading a register
 755  * from an MMD on a given PHY.
 756  * @phydev: The phy_device struct
 757  * @devad: The MMD to read from
 758  * @regnum: The register on the MMD to read
 759  *
 760  * Same rules as for __phy_read();
 761  */
 762 int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
 763 
 764 /**
 765  * phy_write_mmd - Convenience function for writing a register
 766  * on an MMD on a given PHY.
 767  * @phydev: The phy_device struct
 768  * @devad: The MMD to write to
 769  * @regnum: The register on the MMD to read
 770  * @val: value to write to @regnum
 771  *
 772  * Same rules as for phy_write();
 773  */
 774 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
 775 
 776 /**
 777  * __phy_write_mmd - Convenience function for writing a register
 778  * on an MMD on a given PHY.
 779  * @phydev: The phy_device struct
 780  * @devad: The MMD to write to
 781  * @regnum: The register on the MMD to read
 782  * @val: value to write to @regnum
 783  *
 784  * Same rules as for __phy_write();
 785  */
 786 int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
 787 
 788 int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
 789                          u16 set);
 790 int phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask,
 791                        u16 set);
 792 int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
 793 int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
 794 
 795 int __phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
 796                              u16 mask, u16 set);
 797 int phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
 798                            u16 mask, u16 set);
 799 int __phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
 800                      u16 mask, u16 set);
 801 int phy_modify_mmd(struct phy_device *phydev, int devad, u32 regnum,
 802                    u16 mask, u16 set);
 803 
 804 /**
 805  * __phy_set_bits - Convenience function for setting bits in a PHY register
 806  * @phydev: the phy_device struct
 807  * @regnum: register number to write
 808  * @val: bits to set
 809  *
 810  * The caller must have taken the MDIO bus lock.
 811  */
 812 static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
 813 {
 814         return __phy_modify(phydev, regnum, 0, val);
 815 }
 816 
 817 /**
 818  * __phy_clear_bits - Convenience function for clearing bits in a PHY register
 819  * @phydev: the phy_device struct
 820  * @regnum: register number to write
 821  * @val: bits to clear
 822  *
 823  * The caller must have taken the MDIO bus lock.
 824  */
 825 static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
 826                                    u16 val)
 827 {
 828         return __phy_modify(phydev, regnum, val, 0);
 829 }
 830 
 831 /**
 832  * phy_set_bits - Convenience function for setting bits in a PHY register
 833  * @phydev: the phy_device struct
 834  * @regnum: register number to write
 835  * @val: bits to set
 836  */
 837 static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
 838 {
 839         return phy_modify(phydev, regnum, 0, val);
 840 }
 841 
 842 /**
 843  * phy_clear_bits - Convenience function for clearing bits in a PHY register
 844  * @phydev: the phy_device struct
 845  * @regnum: register number to write
 846  * @val: bits to clear
 847  */
 848 static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
 849 {
 850         return phy_modify(phydev, regnum, val, 0);
 851 }
 852 
 853 /**
 854  * __phy_set_bits_mmd - Convenience function for setting bits in a register
 855  * on MMD
 856  * @phydev: the phy_device struct
 857  * @devad: the MMD containing register to modify
 858  * @regnum: register number to modify
 859  * @val: bits to set
 860  *
 861  * The caller must have taken the MDIO bus lock.
 862  */
 863 static inline int __phy_set_bits_mmd(struct phy_device *phydev, int devad,
 864                 u32 regnum, u16 val)
 865 {
 866         return __phy_modify_mmd(phydev, devad, regnum, 0, val);
 867 }
 868 
 869 /**
 870  * __phy_clear_bits_mmd - Convenience function for clearing bits in a register
 871  * on MMD
 872  * @phydev: the phy_device struct
 873  * @devad: the MMD containing register to modify
 874  * @regnum: register number to modify
 875  * @val: bits to clear
 876  *
 877  * The caller must have taken the MDIO bus lock.
 878  */
 879 static inline int __phy_clear_bits_mmd(struct phy_device *phydev, int devad,
 880                 u32 regnum, u16 val)
 881 {
 882         return __phy_modify_mmd(phydev, devad, regnum, val, 0);
 883 }
 884 
 885 /**
 886  * phy_set_bits_mmd - Convenience function for setting bits in a register
 887  * on MMD
 888  * @phydev: the phy_device struct
 889  * @devad: the MMD containing register to modify
 890  * @regnum: register number to modify
 891  * @val: bits to set
 892  */
 893 static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad,
 894                 u32 regnum, u16 val)
 895 {
 896         return phy_modify_mmd(phydev, devad, regnum, 0, val);
 897 }
 898 
 899 /**
 900  * phy_clear_bits_mmd - Convenience function for clearing bits in a register
 901  * on MMD
 902  * @phydev: the phy_device struct
 903  * @devad: the MMD containing register to modify
 904  * @regnum: register number to modify
 905  * @val: bits to clear
 906  */
 907 static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad,
 908                 u32 regnum, u16 val)
 909 {
 910         return phy_modify_mmd(phydev, devad, regnum, val, 0);
 911 }
 912 
 913 /**
 914  * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
 915  * @phydev: the phy_device struct
 916  *
 917  * NOTE: must be kept in sync with addition/removal of PHY_POLL and
 918  * PHY_IGNORE_INTERRUPT
 919  */
 920 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
 921 {
 922         return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
 923 }
 924 
 925 /**
 926  * phy_polling_mode - Convenience function for testing whether polling is
 927  * used to detect PHY status changes
 928  * @phydev: the phy_device struct
 929  */
 930 static inline bool phy_polling_mode(struct phy_device *phydev)
 931 {
 932         return phydev->irq == PHY_POLL;
 933 }
 934 
 935 /**
 936  * phy_is_internal - Convenience function for testing if a PHY is internal
 937  * @phydev: the phy_device struct
 938  */
 939 static inline bool phy_is_internal(struct phy_device *phydev)
 940 {
 941         return phydev->is_internal;
 942 }
 943 
 944 /**
 945  * phy_interface_mode_is_rgmii - Convenience function for testing if a
 946  * PHY interface mode is RGMII (all variants)
 947  * @mode: the phy_interface_t enum
 948  */
 949 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
 950 {
 951         return mode >= PHY_INTERFACE_MODE_RGMII &&
 952                 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
 953 };
 954 
 955 /**
 956  * phy_interface_mode_is_8023z() - does the phy interface mode use 802.3z
 957  *   negotiation
 958  * @mode: one of &enum phy_interface_t
 959  *
 960  * Returns true if the phy interface mode uses the 16-bit negotiation
 961  * word as defined in 802.3z. (See 802.3-2015 37.2.1 Config_Reg encoding)
 962  */
 963 static inline bool phy_interface_mode_is_8023z(phy_interface_t mode)
 964 {
 965         return mode == PHY_INTERFACE_MODE_1000BASEX ||
 966                mode == PHY_INTERFACE_MODE_2500BASEX;
 967 }
 968 
 969 /**
 970  * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
 971  * is RGMII (all variants)
 972  * @phydev: the phy_device struct
 973  */
 974 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
 975 {
 976         return phy_interface_mode_is_rgmii(phydev->interface);
 977 };
 978 
 979 /*
 980  * phy_is_pseudo_fixed_link - Convenience function for testing if this
 981  * PHY is the CPU port facing side of an Ethernet switch, or similar.
 982  * @phydev: the phy_device struct
 983  */
 984 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
 985 {
 986         return phydev->is_pseudo_fixed_link;
 987 }
 988 
 989 int phy_save_page(struct phy_device *phydev);
 990 int phy_select_page(struct phy_device *phydev, int page);
 991 int phy_restore_page(struct phy_device *phydev, int oldpage, int ret);
 992 int phy_read_paged(struct phy_device *phydev, int page, u32 regnum);
 993 int phy_write_paged(struct phy_device *phydev, int page, u32 regnum, u16 val);
 994 int phy_modify_paged_changed(struct phy_device *phydev, int page, u32 regnum,
 995                              u16 mask, u16 set);
 996 int phy_modify_paged(struct phy_device *phydev, int page, u32 regnum,
 997                      u16 mask, u16 set);
 998 
 999 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
1000                                      bool is_c45,
1001                                      struct phy_c45_device_ids *c45_ids);
1002 #if IS_ENABLED(CONFIG_PHYLIB)
1003 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
1004 int phy_device_register(struct phy_device *phy);
1005 void phy_device_free(struct phy_device *phydev);
1006 #else
1007 static inline
1008 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
1009 {
1010         return NULL;
1011 }
1012 
1013 static inline int phy_device_register(struct phy_device *phy)
1014 {
1015         return 0;
1016 }
1017 
1018 static inline void phy_device_free(struct phy_device *phydev) { }
1019 #endif /* CONFIG_PHYLIB */
1020 void phy_device_remove(struct phy_device *phydev);
1021 int phy_init_hw(struct phy_device *phydev);
1022 int phy_suspend(struct phy_device *phydev);
1023 int phy_resume(struct phy_device *phydev);
1024 int __phy_resume(struct phy_device *phydev);
1025 int phy_loopback(struct phy_device *phydev, bool enable);
1026 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
1027                               phy_interface_t interface);
1028 struct phy_device *phy_find_first(struct mii_bus *bus);
1029 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
1030                       u32 flags, phy_interface_t interface);
1031 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
1032                        void (*handler)(struct net_device *),
1033                        phy_interface_t interface);
1034 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
1035                                void (*handler)(struct net_device *),
1036                                phy_interface_t interface);
1037 void phy_disconnect(struct phy_device *phydev);
1038 void phy_detach(struct phy_device *phydev);
1039 void phy_start(struct phy_device *phydev);
1040 void phy_stop(struct phy_device *phydev);
1041 int phy_start_aneg(struct phy_device *phydev);
1042 int phy_aneg_done(struct phy_device *phydev);
1043 int phy_speed_down(struct phy_device *phydev, bool sync);
1044 int phy_speed_up(struct phy_device *phydev);
1045 
1046 int phy_restart_aneg(struct phy_device *phydev);
1047 int phy_reset_after_clk_enable(struct phy_device *phydev);
1048 
1049 static inline void phy_device_reset(struct phy_device *phydev, int value)
1050 {
1051         mdio_device_reset(&phydev->mdio, value);
1052 }
1053 
1054 #define phydev_err(_phydev, format, args...)    \
1055         dev_err(&_phydev->mdio.dev, format, ##args)
1056 
1057 #define phydev_info(_phydev, format, args...)   \
1058         dev_info(&_phydev->mdio.dev, format, ##args)
1059 
1060 #define phydev_warn(_phydev, format, args...)   \
1061         dev_warn(&_phydev->mdio.dev, format, ##args)
1062 
1063 #define phydev_dbg(_phydev, format, args...)    \
1064         dev_dbg(&_phydev->mdio.dev, format, ##args)
1065 
1066 static inline const char *phydev_name(const struct phy_device *phydev)
1067 {
1068         return dev_name(&phydev->mdio.dev);
1069 }
1070 
1071 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
1072         __printf(2, 3);
1073 void phy_attached_info(struct phy_device *phydev);
1074 
1075 /* Clause 22 PHY */
1076 int genphy_read_abilities(struct phy_device *phydev);
1077 int genphy_setup_forced(struct phy_device *phydev);
1078 int genphy_restart_aneg(struct phy_device *phydev);
1079 int genphy_config_eee_advert(struct phy_device *phydev);
1080 int __genphy_config_aneg(struct phy_device *phydev, bool changed);
1081 int genphy_aneg_done(struct phy_device *phydev);
1082 int genphy_update_link(struct phy_device *phydev);
1083 int genphy_read_lpa(struct phy_device *phydev);
1084 int genphy_read_status(struct phy_device *phydev);
1085 int genphy_suspend(struct phy_device *phydev);
1086 int genphy_resume(struct phy_device *phydev);
1087 int genphy_loopback(struct phy_device *phydev, bool enable);
1088 int genphy_soft_reset(struct phy_device *phydev);
1089 
1090 static inline int genphy_config_aneg(struct phy_device *phydev)
1091 {
1092         return __genphy_config_aneg(phydev, false);
1093 }
1094 
1095 static inline int genphy_no_soft_reset(struct phy_device *phydev)
1096 {
1097         return 0;
1098 }
1099 static inline int genphy_no_ack_interrupt(struct phy_device *phydev)
1100 {
1101         return 0;
1102 }
1103 static inline int genphy_no_config_intr(struct phy_device *phydev)
1104 {
1105         return 0;
1106 }
1107 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
1108                                 u16 regnum);
1109 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
1110                                  u16 regnum, u16 val);
1111 
1112 /* Clause 45 PHY */
1113 int genphy_c45_restart_aneg(struct phy_device *phydev);
1114 int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
1115 int genphy_c45_aneg_done(struct phy_device *phydev);
1116 int genphy_c45_read_link(struct phy_device *phydev);
1117 int genphy_c45_read_lpa(struct phy_device *phydev);
1118 int genphy_c45_read_pma(struct phy_device *phydev);
1119 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
1120 int genphy_c45_an_config_aneg(struct phy_device *phydev);
1121 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
1122 int genphy_c45_read_mdix(struct phy_device *phydev);
1123 int genphy_c45_pma_read_abilities(struct phy_device *phydev);
1124 int genphy_c45_read_status(struct phy_device *phydev);
1125 int genphy_c45_config_aneg(struct phy_device *phydev);
1126 
1127 /* The gen10g_* functions are the old Clause 45 stub */
1128 int gen10g_config_aneg(struct phy_device *phydev);
1129 
1130 static inline int phy_read_status(struct phy_device *phydev)
1131 {
1132         if (!phydev->drv)
1133                 return -EIO;
1134 
1135         if (phydev->drv->read_status)
1136                 return phydev->drv->read_status(phydev);
1137         else
1138                 return genphy_read_status(phydev);
1139 }
1140 
1141 void phy_driver_unregister(struct phy_driver *drv);
1142 void phy_drivers_unregister(struct phy_driver *drv, int n);
1143 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
1144 int phy_drivers_register(struct phy_driver *new_driver, int n,
1145                          struct module *owner);
1146 void phy_state_machine(struct work_struct *work);
1147 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies);
1148 void phy_mac_interrupt(struct phy_device *phydev);
1149 void phy_start_machine(struct phy_device *phydev);
1150 void phy_stop_machine(struct phy_device *phydev);
1151 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
1152 void phy_ethtool_ksettings_get(struct phy_device *phydev,
1153                                struct ethtool_link_ksettings *cmd);
1154 int phy_ethtool_ksettings_set(struct phy_device *phydev,
1155                               const struct ethtool_link_ksettings *cmd);
1156 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
1157 void phy_request_interrupt(struct phy_device *phydev);
1158 void phy_free_interrupt(struct phy_device *phydev);
1159 void phy_print_status(struct phy_device *phydev);
1160 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
1161 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
1162 void phy_advertise_supported(struct phy_device *phydev);
1163 void phy_support_sym_pause(struct phy_device *phydev);
1164 void phy_support_asym_pause(struct phy_device *phydev);
1165 void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
1166                        bool autoneg);
1167 void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
1168 bool phy_validate_pause(struct phy_device *phydev,
1169                         struct ethtool_pauseparam *pp);
1170 
1171 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
1172                        int (*run)(struct phy_device *));
1173 int phy_register_fixup_for_id(const char *bus_id,
1174                               int (*run)(struct phy_device *));
1175 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
1176                                int (*run)(struct phy_device *));
1177 
1178 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
1179 int phy_unregister_fixup_for_id(const char *bus_id);
1180 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
1181 
1182 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
1183 int phy_get_eee_err(struct phy_device *phydev);
1184 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
1185 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
1186 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
1187 void phy_ethtool_get_wol(struct phy_device *phydev,
1188                          struct ethtool_wolinfo *wol);
1189 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
1190                                    struct ethtool_link_ksettings *cmd);
1191 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
1192                                    const struct ethtool_link_ksettings *cmd);
1193 int phy_ethtool_nway_reset(struct net_device *ndev);
1194 
1195 #if IS_ENABLED(CONFIG_PHYLIB)
1196 int __init mdio_bus_init(void);
1197 void mdio_bus_exit(void);
1198 #endif
1199 
1200 /* Inline function for use within net/core/ethtool.c (built-in) */
1201 static inline int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data)
1202 {
1203         if (!phydev->drv)
1204                 return -EIO;
1205 
1206         mutex_lock(&phydev->lock);
1207         phydev->drv->get_strings(phydev, data);
1208         mutex_unlock(&phydev->lock);
1209 
1210         return 0;
1211 }
1212 
1213 static inline int phy_ethtool_get_sset_count(struct phy_device *phydev)
1214 {
1215         int ret;
1216 
1217         if (!phydev->drv)
1218                 return -EIO;
1219 
1220         if (phydev->drv->get_sset_count &&
1221             phydev->drv->get_strings &&
1222             phydev->drv->get_stats) {
1223                 mutex_lock(&phydev->lock);
1224                 ret = phydev->drv->get_sset_count(phydev);
1225                 mutex_unlock(&phydev->lock);
1226 
1227                 return ret;
1228         }
1229 
1230         return -EOPNOTSUPP;
1231 }
1232 
1233 static inline int phy_ethtool_get_stats(struct phy_device *phydev,
1234                                         struct ethtool_stats *stats, u64 *data)
1235 {
1236         if (!phydev->drv)
1237                 return -EIO;
1238 
1239         mutex_lock(&phydev->lock);
1240         phydev->drv->get_stats(phydev, stats, data);
1241         mutex_unlock(&phydev->lock);
1242 
1243         return 0;
1244 }
1245 
1246 extern struct bus_type mdio_bus_type;
1247 
1248 struct mdio_board_info {
1249         const char      *bus_id;
1250         char            modalias[MDIO_NAME_SIZE];
1251         int             mdio_addr;
1252         const void      *platform_data;
1253 };
1254 
1255 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
1256 int mdiobus_register_board_info(const struct mdio_board_info *info,
1257                                 unsigned int n);
1258 #else
1259 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
1260                                               unsigned int n)
1261 {
1262         return 0;
1263 }
1264 #endif
1265 
1266 
1267 /**
1268  * module_phy_driver() - Helper macro for registering PHY drivers
1269  * @__phy_drivers: array of PHY drivers to register
1270  *
1271  * Helper macro for PHY drivers which do not do anything special in module
1272  * init/exit. Each module may only use this macro once, and calling it
1273  * replaces module_init() and module_exit().
1274  */
1275 #define phy_module_driver(__phy_drivers, __count)                       \
1276 static int __init phy_module_init(void)                                 \
1277 {                                                                       \
1278         return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
1279 }                                                                       \
1280 module_init(phy_module_init);                                           \
1281 static void __exit phy_module_exit(void)                                \
1282 {                                                                       \
1283         phy_drivers_unregister(__phy_drivers, __count);                 \
1284 }                                                                       \
1285 module_exit(phy_module_exit)
1286 
1287 #define module_phy_driver(__phy_drivers)                                \
1288         phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
1289 
1290 bool phy_driver_is_genphy(struct phy_device *phydev);
1291 bool phy_driver_is_genphy_10g(struct phy_device *phydev);
1292 
1293 #endif /* __PHY_H */
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root/include/linux/phy.h

INCLUDED FROM

DEFINITIONS
