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