include/linux/phy.h

   1 /*
   2  * Framework and drivers for configuring and reading different PHYs
   3  * Based on code in sungem_phy.c and gianfar_phy.c
   4  *
   5  * Author: Andy Fleming
   6  *
   7  * Copyright (c) 2004 Freescale Semiconductor, Inc.
   8  *
   9  * This program is free software; you can redistribute  it and/or modify it
  10  * under  the terms of  the GNU General  Public License as published by the
  11  * Free Software Foundation;  either version 2 of the  License, or (at your
  12  * option) any later version.
  13  *
  14  */
  15
  16 #ifndef __PHY_H
  17 #define __PHY_H
  18
  19 #include <linux/spinlock.h>
  20 #include <linux/ethtool.h>
  21 #include <linux/mii.h>
  22 #include <linux/timer.h>
  23 #include <linux/workqueue.h>
  24 #include <linux/mod_devicetable.h>
  25
  26 #include <linux/atomic.h>
  27
  28 #define PHY_DEFAULT_FEATURES    (SUPPORTED_Autoneg | \
  29                                  SUPPORTED_TP | \
  30                                  SUPPORTED_MII)
  31
  32 #define PHY_10BT_FEATURES       (SUPPORTED_10baseT_Half | \
  33                                  SUPPORTED_10baseT_Full)
  34
  35 #define PHY_100BT_FEATURES      (SUPPORTED_100baseT_Half | \
  36                                  SUPPORTED_100baseT_Full)
  37
  38 #define PHY_1000BT_FEATURES     (SUPPORTED_1000baseT_Half | \
  39                                  SUPPORTED_1000baseT_Full)
  40
  41 #define PHY_BASIC_FEATURES      (PHY_10BT_FEATURES | \
  42                                  PHY_100BT_FEATURES | \
  43                                  PHY_DEFAULT_FEATURES)
  44
  45 #define PHY_GBIT_FEATURES       (PHY_BASIC_FEATURES | \
  46                                  PHY_1000BT_FEATURES)
  47
  48
  49 /*
  50  * Set phydev->irq to PHY_POLL if interrupts are not supported,
  51  * or not desired for this PHY.  Set to PHY_IGNORE_INTERRUPT if
  52  * the attached driver handles the interrupt
  53  */
  54 #define PHY_POLL                -1
  55 #define PHY_IGNORE_INTERRUPT    -2
  56
  57 #define PHY_HAS_INTERRUPT       0x00000001
  58 #define PHY_HAS_MAGICANEG       0x00000002
  59 #define PHY_IS_INTERNAL         0x00000004
  60
  61 /* Interface Mode definitions */
  62 typedef enum {
  63         PHY_INTERFACE_MODE_NA,
  64         PHY_INTERFACE_MODE_MII,
  65         PHY_INTERFACE_MODE_GMII,
  66         PHY_INTERFACE_MODE_SGMII,
  67         PHY_INTERFACE_MODE_TBI,
  68         PHY_INTERFACE_MODE_REVMII,
  69         PHY_INTERFACE_MODE_RMII,
  70         PHY_INTERFACE_MODE_RGMII,
  71         PHY_INTERFACE_MODE_RGMII_ID,
  72         PHY_INTERFACE_MODE_RGMII_RXID,
  73         PHY_INTERFACE_MODE_RGMII_TXID,
  74         PHY_INTERFACE_MODE_RTBI,
  75         PHY_INTERFACE_MODE_SMII,
  76         PHY_INTERFACE_MODE_XGMII,
  77         PHY_INTERFACE_MODE_MOCA,
  78         PHY_INTERFACE_MODE_MAX,
  79 } phy_interface_t;
  80
  81 /**
  82  * It maps 'enum phy_interface_t' found in include/linux/phy.h
  83  * into the device tree binding of 'phy-mode', so that Ethernet
  84  * device driver can get phy interface from device tree.
  85  */
  86 static inline const char *phy_modes(phy_interface_t interface)
  87 {
  88         switch (interface) {
  89         case PHY_INTERFACE_MODE_NA:
  90                 return "";
  91         case PHY_INTERFACE_MODE_MII:
  92                 return "mii";
  93         case PHY_INTERFACE_MODE_GMII:
  94                 return "gmii";
  95         case PHY_INTERFACE_MODE_SGMII:
  96                 return "sgmii";
  97         case PHY_INTERFACE_MODE_TBI:
  98                 return "tbi";
  99         case PHY_INTERFACE_MODE_REVMII:
 100                 return "rev-mii";
 101         case PHY_INTERFACE_MODE_RMII:
 102                 return "rmii";
 103         case PHY_INTERFACE_MODE_RGMII:
 104                 return "rgmii";
 105         case PHY_INTERFACE_MODE_RGMII_ID:
 106                 return "rgmii-id";
 107         case PHY_INTERFACE_MODE_RGMII_RXID:
 108                 return "rgmii-rxid";
 109         case PHY_INTERFACE_MODE_RGMII_TXID:
 110                 return "rgmii-txid";
 111         case PHY_INTERFACE_MODE_RTBI:
 112                 return "rtbi";
 113         case PHY_INTERFACE_MODE_SMII:
 114                 return "smii";
 115         case PHY_INTERFACE_MODE_XGMII:
 116                 return "xgmii";
 117         case PHY_INTERFACE_MODE_MOCA:
 118                 return "moca";
 119         default:
 120                 return "unknown";
 121         }
 122 }
 123
 124
 125 #define PHY_INIT_TIMEOUT        100000
 126 #define PHY_STATE_TIME          1
 127 #define PHY_FORCE_TIMEOUT       10
 128 #define PHY_AN_TIMEOUT          10
 129
 130 #define PHY_MAX_ADDR    32
 131
 132 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
 133 #define PHY_ID_FMT "%s:%02x"
 134
 135 /*
 136  * Need to be a little smaller than phydev->dev.bus_id to leave room
 137  * for the ":%02x"
 138  */
 139 #define MII_BUS_ID_SIZE (20 - 3)
 140
 141 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
 142    IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
 143 #define MII_ADDR_C45 (1<<30)
 144
 145 struct device;
 146 struct sk_buff;
 147
 148 /*
 149  * The Bus class for PHYs.  Devices which provide access to
 150  * PHYs should register using this structure
 151  */
 152 struct mii_bus {
 153         const char *name;
 154         char id[MII_BUS_ID_SIZE];
 155         void *priv;
 156         int (*read)(struct mii_bus *bus, int phy_id, int regnum);
 157         int (*write)(struct mii_bus *bus, int phy_id, int regnum, u16 val);
 158         int (*reset)(struct mii_bus *bus);
 159
 160         /*
 161          * A lock to ensure that only one thing can read/write
 162          * the MDIO bus at a time
 163          */
 164         struct mutex mdio_lock;
 165
 166         struct device *parent;
 167         enum {
 168                 MDIOBUS_ALLOCATED = 1,
 169                 MDIOBUS_REGISTERED,
 170                 MDIOBUS_UNREGISTERED,
 171                 MDIOBUS_RELEASED,
 172         } state;
 173         struct device dev;
 174
 175         /* list of all PHYs on bus */
 176         struct phy_device *phy_map[PHY_MAX_ADDR];
 177
 178         /* PHY addresses to be ignored when probing */
 179         u32 phy_mask;
 180
 181         /*
 182          * Pointer to an array of interrupts, each PHY's
 183          * interrupt at the index matching its address
 184          */
 185         int *irq;
 186 };
 187 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
 188
 189 struct mii_bus *mdiobus_alloc_size(size_t);
 190 static inline struct mii_bus *mdiobus_alloc(void)
 191 {
 192         return mdiobus_alloc_size(0);
 193 }
 194
 195 int mdiobus_register(struct mii_bus *bus);
 196 void mdiobus_unregister(struct mii_bus *bus);
 197 void mdiobus_free(struct mii_bus *bus);
 198 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
 199 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
 200 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
 201
 202
 203 #define PHY_INTERRUPT_DISABLED  0x0
 204 #define PHY_INTERRUPT_ENABLED   0x80000000
 205
 206 /* PHY state machine states:
 207  *
 208  * DOWN: PHY device and driver are not ready for anything.  probe
 209  * should be called if and only if the PHY is in this state,
 210  * given that the PHY device exists.
 211  * - PHY driver probe function will, depending on the PHY, set
 212  * the state to STARTING or READY
 213  *
 214  * STARTING:  PHY device is coming up, and the ethernet driver is
 215  * not ready.  PHY drivers may set this in the probe function.
 216  * If they do, they are responsible for making sure the state is
 217  * eventually set to indicate whether the PHY is UP or READY,
 218  * depending on the state when the PHY is done starting up.
 219  * - PHY driver will set the state to READY
 220  * - start will set the state to PENDING
 221  *
 222  * READY: PHY is ready to send and receive packets, but the
 223  * controller is not.  By default, PHYs which do not implement
 224  * probe will be set to this state by phy_probe().  If the PHY
 225  * driver knows the PHY is ready, and the PHY state is STARTING,
 226  * then it sets this STATE.
 227  * - start will set the state to UP
 228  *
 229  * PENDING: PHY device is coming up, but the ethernet driver is
 230  * ready.  phy_start will set this state if the PHY state is
 231  * STARTING.
 232  * - PHY driver will set the state to UP when the PHY is ready
 233  *
 234  * UP: The PHY and attached device are ready to do work.
 235  * Interrupts should be started here.
 236  * - timer moves to AN
 237  *
 238  * AN: The PHY is currently negotiating the link state.  Link is
 239  * therefore down for now.  phy_timer will set this state when it
 240  * detects the state is UP.  config_aneg will set this state
 241  * whenever called with phydev->autoneg set to AUTONEG_ENABLE.
 242  * - If autonegotiation finishes, but there's no link, it sets
 243  *   the state to NOLINK.
 244  * - If aneg finishes with link, it sets the state to RUNNING,
 245  *   and calls adjust_link
 246  * - If autonegotiation did not finish after an arbitrary amount
 247  *   of time, autonegotiation should be tried again if the PHY
 248  *   supports "magic" autonegotiation (back to AN)
 249  * - If it didn't finish, and no magic_aneg, move to FORCING.
 250  *
 251  * NOLINK: PHY is up, but not currently plugged in.
 252  * - If the timer notes that the link comes back, we move to RUNNING
 253  * - config_aneg moves to AN
 254  * - phy_stop moves to HALTED
 255  *
 256  * FORCING: PHY is being configured with forced settings
 257  * - if link is up, move to RUNNING
 258  * - If link is down, we drop to the next highest setting, and
 259  *   retry (FORCING) after a timeout
 260  * - phy_stop moves to HALTED
 261  *
 262  * RUNNING: PHY is currently up, running, and possibly sending
 263  * and/or receiving packets
 264  * - timer will set CHANGELINK if we're polling (this ensures the
 265  *   link state is polled every other cycle of this state machine,
 266  *   which makes it every other second)
 267  * - irq will set CHANGELINK
 268  * - config_aneg will set AN
 269  * - phy_stop moves to HALTED
 270  *
 271  * CHANGELINK: PHY experienced a change in link state
 272  * - timer moves to RUNNING if link
 273  * - timer moves to NOLINK if the link is down
 274  * - phy_stop moves to HALTED
 275  *
 276  * HALTED: PHY is up, but no polling or interrupts are done. Or
 277  * PHY is in an error state.
 278  *
 279  * - phy_start moves to RESUMING
 280  *
 281  * RESUMING: PHY was halted, but now wants to run again.
 282  * - If we are forcing, or aneg is done, timer moves to RUNNING
 283  * - If aneg is not done, timer moves to AN
 284  * - phy_stop moves to HALTED
 285  */
 286 enum phy_state {
 287         PHY_DOWN = 0,
 288         PHY_STARTING,
 289         PHY_READY,
 290         PHY_PENDING,
 291         PHY_UP,
 292         PHY_AN,
 293         PHY_RUNNING,
 294         PHY_NOLINK,
 295         PHY_FORCING,
 296         PHY_CHANGELINK,
 297         PHY_HALTED,
 298         PHY_RESUMING
 299 };
 300
 301 /**
 302  * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
 303  * @devices_in_package: Bit vector of devices present.
 304  * @device_ids: The device identifer for each present device.
 305  */
 306 struct phy_c45_device_ids {
 307         u32 devices_in_package;
 308         u32 device_ids[8];
 309 };
 310
 311 /* phy_device: An instance of a PHY
 312  *
 313  * drv: Pointer to the driver for this PHY instance
 314  * bus: Pointer to the bus this PHY is on
 315  * dev: driver model device structure for this PHY
 316  * phy_id: UID for this device found during discovery
 317  * c45_ids: 802.3-c45 Device Identifers if is_c45.
 318  * is_c45:  Set to true if this phy uses clause 45 addressing.
 319  * is_internal: Set to true if this phy is internal to a MAC.
 320  * state: state of the PHY for management purposes
 321  * dev_flags: Device-specific flags used by the PHY driver.
 322  * addr: Bus address of PHY
 323  * link_timeout: The number of timer firings to wait before the
 324  * giving up on the current attempt at acquiring a link
 325  * irq: IRQ number of the PHY's interrupt (-1 if none)
 326  * phy_timer: The timer for handling the state machine
 327  * phy_queue: A work_queue for the interrupt
 328  * attached_dev: The attached enet driver's device instance ptr
 329  * adjust_link: Callback for the enet controller to respond to
 330  * changes in the link state.
 331  *
 332  * speed, duplex, pause, supported, advertising, lp_advertising,
 333  * and autoneg are used like in mii_if_info
 334  *
 335  * interrupts currently only supports enabled or disabled,
 336  * but could be changed in the future to support enabling
 337  * and disabling specific interrupts
 338  *
 339  * Contains some infrastructure for polling and interrupt
 340  * handling, as well as handling shifts in PHY hardware state
 341  */
 342 struct phy_device {
 343         /* Information about the PHY type */
 344         /* And management functions */
 345         struct phy_driver *drv;
 346
 347         struct mii_bus *bus;
 348
 349         struct device dev;
 350
 351         u32 phy_id;
 352
 353         struct phy_c45_device_ids c45_ids;
 354         bool is_c45;
 355         bool is_internal;
 356         bool has_fixups;
 357
 358         enum phy_state state;
 359
 360         u32 dev_flags;
 361
 362         phy_interface_t interface;
 363
 364         /* Bus address of the PHY (0-31) */
 365         int addr;
 366
 367         /*
 368          * forced speed & duplex (no autoneg)
 369          * partner speed & duplex & pause (autoneg)
 370          */
 371         int speed;
 372         int duplex;
 373         int pause;
 374         int asym_pause;
 375
 376         /* The most recently read link state */
 377         int link;
 378
 379         /* Enabled Interrupts */
 380         u32 interrupts;
 381
 382         /* Union of PHY and Attached devices' supported modes */
 383         /* See mii.h for more info */
 384         u32 supported;
 385         u32 advertising;
 386         u32 lp_advertising;
 387
 388         int autoneg;
 389
 390         int link_timeout;
 391
 392         /*
 393          * Interrupt number for this PHY
 394          * -1 means no interrupt
 395          */
 396         int irq;
 397
 398         /* private data pointer */
 399         /* For use by PHYs to maintain extra state */
 400         void *priv;
 401
 402         /* Interrupt and Polling infrastructure */
 403         struct work_struct phy_queue;
 404         struct delayed_work state_queue;
 405         atomic_t irq_disable;
 406
 407         struct mutex lock;
 408
 409         struct net_device *attached_dev;
 410
 411         void (*adjust_link)(struct net_device *dev);
 412 };
 413 #define to_phy_device(d) container_of(d, struct phy_device, dev)
 414
 415 /* struct phy_driver: Driver structure for a particular PHY type
 416  *
 417  * phy_id: The result of reading the UID registers of this PHY
 418  *   type, and ANDing them with the phy_id_mask.  This driver
 419  *   only works for PHYs with IDs which match this field
 420  * name: The friendly name of this PHY type
 421  * phy_id_mask: Defines the important bits of the phy_id
 422  * features: A list of features (speed, duplex, etc) supported
 423  *   by this PHY
 424  * flags: A bitfield defining certain other features this PHY
 425  *   supports (like interrupts)
 426  *
 427  * The drivers must implement config_aneg and read_status.  All
 428  * other functions are optional. Note that none of these
 429  * functions should be called from interrupt time.  The goal is
 430  * for the bus read/write functions to be able to block when the
 431  * bus transaction is happening, and be freed up by an interrupt
 432  * (The MPC85xx has this ability, though it is not currently
 433  * supported in the driver).
 434  */
 435 struct phy_driver {
 436         u32 phy_id;
 437         char *name;
 438         unsigned int phy_id_mask;
 439         u32 features;
 440         u32 flags;
 441
 442         /*
 443          * Called to issue a PHY software reset
 444          */
 445         int (*soft_reset)(struct phy_device *phydev);
 446
 447         /*
 448          * Called to initialize the PHY,
 449          * including after a reset
 450          */
 451         int (*config_init)(struct phy_device *phydev);
 452
 453         /*
 454          * Called during discovery.  Used to set
 455          * up device-specific structures, if any
 456          */
 457         int (*probe)(struct phy_device *phydev);
 458
 459         /* PHY Power Management */
 460         int (*suspend)(struct phy_device *phydev);
 461         int (*resume)(struct phy_device *phydev);
 462
 463         /*
 464          * Configures the advertisement and resets
 465          * autonegotiation if phydev->autoneg is on,
 466          * forces the speed to the current settings in phydev
 467          * if phydev->autoneg is off
 468          */
 469         int (*config_aneg)(struct phy_device *phydev);
 470
 471         /* Determines the auto negotiation result */
 472         int (*aneg_done)(struct phy_device *phydev);
 473
 474         /* Determines the negotiated speed and duplex */
 475         int (*read_status)(struct phy_device *phydev);
 476
 477         /* Clears any pending interrupts */
 478         int (*ack_interrupt)(struct phy_device *phydev);
 479
 480         /* Enables or disables interrupts */
 481         int (*config_intr)(struct phy_device *phydev);
 482
 483         /*
 484          * Checks if the PHY generated an interrupt.
 485          * For multi-PHY devices with shared PHY interrupt pin
 486          */
 487         int (*did_interrupt)(struct phy_device *phydev);
 488
 489         /* Clears up any memory if needed */
 490         void (*remove)(struct phy_device *phydev);
 491
 492         /* Returns true if this is a suitable driver for the given
 493          * phydev.  If NULL, matching is based on phy_id and
 494          * phy_id_mask.
 495          */
 496         int (*match_phy_device)(struct phy_device *phydev);
 497
 498         /* Handles ethtool queries for hardware time stamping. */
 499         int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
 500
 501         /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
 502         int  (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
 503
 504         /*
 505          * Requests a Rx timestamp for 'skb'. If the skb is accepted,
 506          * the phy driver promises to deliver it using netif_rx() as
 507          * soon as a timestamp becomes available. One of the
 508          * PTP_CLASS_ values is passed in 'type'. The function must
 509          * return true if the skb is accepted for delivery.
 510          */
 511         bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
 512
 513         /*
 514          * Requests a Tx timestamp for 'skb'. The phy driver promises
 515          * to deliver it using skb_complete_tx_timestamp() as soon as a
 516          * timestamp becomes available. One of the PTP_CLASS_ values
 517          * is passed in 'type'.
 518          */
 519         void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
 520
 521         /* Some devices (e.g. qnap TS-119P II) require PHY register changes to
 522          * enable Wake on LAN, so set_wol is provided to be called in the
 523          * ethernet driver's set_wol function. */
 524         int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
 525
 526         /* See set_wol, but for checking whether Wake on LAN is enabled. */
 527         void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
 528
 529         struct device_driver driver;
 530 };
 531 #define to_phy_driver(d) container_of(d, struct phy_driver, driver)
 532
 533 #define PHY_ANY_ID "MATCH ANY PHY"
 534 #define PHY_ANY_UID 0xffffffff
 535
 536 /* A Structure for boards to register fixups with the PHY Lib */
 537 struct phy_fixup {
 538         struct list_head list;
 539         char bus_id[20];
 540         u32 phy_uid;
 541         u32 phy_uid_mask;
 542         int (*run)(struct phy_device *phydev);
 543 };
 544
 545 /**
 546  * phy_read_mmd - Convenience function for reading a register
 547  * from an MMD on a given PHY.
 548  * @phydev: The phy_device struct
 549  * @devad: The MMD to read from
 550  * @regnum: The register on the MMD to read
 551  *
 552  * Same rules as for phy_read();
 553  */
 554 static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
 555 {
 556         if (!phydev->is_c45)
 557                 return -EOPNOTSUPP;
 558
 559         return mdiobus_read(phydev->bus, phydev->addr,
 560                             MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
 561 }
 562
 563 /**
 564  * phy_read - Convenience function for reading a given PHY register
 565  * @phydev: the phy_device struct
 566  * @regnum: register number to read
 567  *
 568  * NOTE: MUST NOT be called from interrupt context,
 569  * because the bus read/write functions may wait for an interrupt
 570  * to conclude the operation.
 571  */
 572 static inline int phy_read(struct phy_device *phydev, u32 regnum)
 573 {
 574         return mdiobus_read(phydev->bus, phydev->addr, regnum);
 575 }
 576
 577 /**
 578  * phy_write - Convenience function for writing a given PHY register
 579  * @phydev: the phy_device struct
 580  * @regnum: register number to write
 581  * @val: value to write to @regnum
 582  *
 583  * NOTE: MUST NOT be called from interrupt context,
 584  * because the bus read/write functions may wait for an interrupt
 585  * to conclude the operation.
 586  */
 587 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
 588 {
 589         return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
 590 }
 591
 592 /**
 593  * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
 594  * @phydev: the phy_device struct
 595  *
 596  * NOTE: must be kept in sync with addition/removal of PHY_POLL and
 597  * PHY_IGNORE_INTERRUPT
 598  */
 599 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
 600 {
 601         return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
 602 }
 603
 604 /**
 605  * phy_is_internal - Convenience function for testing if a PHY is internal
 606  * @phydev: the phy_device struct
 607  */
 608 static inline bool phy_is_internal(struct phy_device *phydev)
 609 {
 610         return phydev->is_internal;
 611 }
 612
 613 /**
 614  * phy_write_mmd - Convenience function for writing a register
 615  * on an MMD on a given PHY.
 616  * @phydev: The phy_device struct
 617  * @devad: The MMD to read from
 618  * @regnum: The register on the MMD to read
 619  * @val: value to write to @regnum
 620  *
 621  * Same rules as for phy_write();
 622  */
 623 static inline int phy_write_mmd(struct phy_device *phydev, int devad,
 624                                 u32 regnum, u16 val)
 625 {
 626         if (!phydev->is_c45)
 627                 return -EOPNOTSUPP;
 628
 629         regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
 630
 631         return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
 632 }
 633
 634 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 635                                      bool is_c45,
 636                                      struct phy_c45_device_ids *c45_ids);
 637 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
 638 int phy_device_register(struct phy_device *phy);
 639 int phy_init_hw(struct phy_device *phydev);
 640 int phy_suspend(struct phy_device *phydev);
 641 int phy_resume(struct phy_device *phydev);
 642 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
 643                               phy_interface_t interface);
 644 struct phy_device *phy_find_first(struct mii_bus *bus);
 645 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 646                       u32 flags, phy_interface_t interface);
 647 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
 648                        void (*handler)(struct net_device *),
 649                        phy_interface_t interface);
 650 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
 651                                void (*handler)(struct net_device *),
 652                                phy_interface_t interface);
 653 void phy_disconnect(struct phy_device *phydev);
 654 void phy_detach(struct phy_device *phydev);
 655 void phy_start(struct phy_device *phydev);
 656 void phy_stop(struct phy_device *phydev);
 657 int phy_start_aneg(struct phy_device *phydev);
 658
 659 int phy_stop_interrupts(struct phy_device *phydev);
 660
 661 static inline int phy_read_status(struct phy_device *phydev)
 662 {
 663         return phydev->drv->read_status(phydev);
 664 }
 665
 666 int genphy_setup_forced(struct phy_device *phydev);
 667 int genphy_restart_aneg(struct phy_device *phydev);
 668 int genphy_config_aneg(struct phy_device *phydev);
 669 int genphy_aneg_done(struct phy_device *phydev);
 670 int genphy_update_link(struct phy_device *phydev);
 671 int genphy_read_status(struct phy_device *phydev);
 672 int genphy_suspend(struct phy_device *phydev);
 673 int genphy_resume(struct phy_device *phydev);
 674 int genphy_soft_reset(struct phy_device *phydev);
 675 void phy_driver_unregister(struct phy_driver *drv);
 676 void phy_drivers_unregister(struct phy_driver *drv, int n);
 677 int phy_driver_register(struct phy_driver *new_driver);
 678 int phy_drivers_register(struct phy_driver *new_driver, int n);
 679 void phy_state_machine(struct work_struct *work);
 680 void phy_change(struct work_struct *work);
 681 void phy_mac_interrupt(struct phy_device *phydev, int new_link);
 682 void phy_start_machine(struct phy_device *phydev);
 683 void phy_stop_machine(struct phy_device *phydev);
 684 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
 685 int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
 686 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
 687 int phy_start_interrupts(struct phy_device *phydev);
 688 void phy_print_status(struct phy_device *phydev);
 689 void phy_device_free(struct phy_device *phydev);
 690
 691 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
 692                        int (*run)(struct phy_device *));
 693 int phy_register_fixup_for_id(const char *bus_id,
 694                               int (*run)(struct phy_device *));
 695 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
 696                                int (*run)(struct phy_device *));
 697
 698 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
 699 int phy_get_eee_err(struct phy_device *phydev);
 700 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
 701 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
 702 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
 703 void phy_ethtool_get_wol(struct phy_device *phydev,
 704                          struct ethtool_wolinfo *wol);
 705
 706 int __init mdio_bus_init(void);
 707 void mdio_bus_exit(void);
 708
 709 extern struct bus_type mdio_bus_type;
 710 #endif /* __PHY_H */