2 * Framework and drivers for configuring and reading different PHYs
3 * Based on code in sungem_phy.c and gianfar_phy.c
7 * Copyright (c) 2004 Freescale Semiconductor, Inc.
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.
19 #include <linux/spinlock.h>
20 #include <linux/ethtool.h>
21 #include <linux/mii.h>
22 #include <linux/module.h>
23 #include <linux/timer.h>
24 #include <linux/workqueue.h>
25 #include <linux/mod_devicetable.h>
27 #include <linux/atomic.h>
29 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
33 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
34 SUPPORTED_10baseT_Full)
36 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
37 SUPPORTED_100baseT_Full)
39 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
40 SUPPORTED_1000baseT_Full)
42 #define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \
43 PHY_100BT_FEATURES | \
46 #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
51 * Set phydev->irq to PHY_POLL if interrupts are not supported,
52 * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if
53 * the attached driver handles the interrupt
56 #define PHY_IGNORE_INTERRUPT -2
58 #define PHY_HAS_INTERRUPT 0x00000001
59 #define PHY_HAS_MAGICANEG 0x00000002
60 #define PHY_IS_INTERNAL 0x00000004
62 /* Interface Mode definitions */
64 PHY_INTERFACE_MODE_NA,
65 PHY_INTERFACE_MODE_MII,
66 PHY_INTERFACE_MODE_GMII,
67 PHY_INTERFACE_MODE_SGMII,
68 PHY_INTERFACE_MODE_TBI,
69 PHY_INTERFACE_MODE_REVMII,
70 PHY_INTERFACE_MODE_RMII,
71 PHY_INTERFACE_MODE_RGMII,
72 PHY_INTERFACE_MODE_RGMII_ID,
73 PHY_INTERFACE_MODE_RGMII_RXID,
74 PHY_INTERFACE_MODE_RGMII_TXID,
75 PHY_INTERFACE_MODE_RTBI,
76 PHY_INTERFACE_MODE_SMII,
77 PHY_INTERFACE_MODE_XGMII,
78 PHY_INTERFACE_MODE_MOCA,
79 PHY_INTERFACE_MODE_QSGMII,
80 PHY_INTERFACE_MODE_MAX,
84 * It maps 'enum phy_interface_t' found in include/linux/phy.h
85 * into the device tree binding of 'phy-mode', so that Ethernet
86 * device driver can get phy interface from device tree.
88 static inline const char *phy_modes(phy_interface_t interface)
91 case PHY_INTERFACE_MODE_NA:
93 case PHY_INTERFACE_MODE_MII:
95 case PHY_INTERFACE_MODE_GMII:
97 case PHY_INTERFACE_MODE_SGMII:
99 case PHY_INTERFACE_MODE_TBI:
101 case PHY_INTERFACE_MODE_REVMII:
103 case PHY_INTERFACE_MODE_RMII:
105 case PHY_INTERFACE_MODE_RGMII:
107 case PHY_INTERFACE_MODE_RGMII_ID:
109 case PHY_INTERFACE_MODE_RGMII_RXID:
111 case PHY_INTERFACE_MODE_RGMII_TXID:
113 case PHY_INTERFACE_MODE_RTBI:
115 case PHY_INTERFACE_MODE_SMII:
117 case PHY_INTERFACE_MODE_XGMII:
119 case PHY_INTERFACE_MODE_MOCA:
121 case PHY_INTERFACE_MODE_QSGMII:
129 #define PHY_INIT_TIMEOUT 100000
130 #define PHY_STATE_TIME 1
131 #define PHY_FORCE_TIMEOUT 10
132 #define PHY_AN_TIMEOUT 10
134 #define PHY_MAX_ADDR 32
136 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
137 #define PHY_ID_FMT "%s:%02x"
140 * Need to be a little smaller than phydev->dev.bus_id to leave room
143 #define MII_BUS_ID_SIZE (20 - 3)
145 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
146 IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
147 #define MII_ADDR_C45 (1<<30)
153 * The Bus class for PHYs. Devices which provide access to
154 * PHYs should register using this structure
157 struct module *owner;
159 char id[MII_BUS_ID_SIZE];
161 int (*read)(struct mii_bus *bus, int phy_id, int regnum);
162 int (*write)(struct mii_bus *bus, int phy_id, int regnum, u16 val);
163 int (*reset)(struct mii_bus *bus);
166 * A lock to ensure that only one thing can read/write
167 * the MDIO bus at a time
169 struct mutex mdio_lock;
171 struct device *parent;
173 MDIOBUS_ALLOCATED = 1,
175 MDIOBUS_UNREGISTERED,
180 /* list of all PHYs on bus */
181 struct phy_device *phy_map[PHY_MAX_ADDR];
183 /* PHY addresses to be ignored when probing */
186 /* PHY addresses to ignore the TA/read failure */
187 u32 phy_ignore_ta_mask;
190 * Pointer to an array of interrupts, each PHY's
191 * interrupt at the index matching its address
195 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
197 struct mii_bus *mdiobus_alloc_size(size_t);
198 static inline struct mii_bus *mdiobus_alloc(void)
200 return mdiobus_alloc_size(0);
203 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
204 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
205 void mdiobus_unregister(struct mii_bus *bus);
206 void mdiobus_free(struct mii_bus *bus);
207 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
208 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
210 return devm_mdiobus_alloc_size(dev, 0);
213 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
214 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
215 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
216 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
219 #define PHY_INTERRUPT_DISABLED 0x0
220 #define PHY_INTERRUPT_ENABLED 0x80000000
222 /* PHY state machine states:
224 * DOWN: PHY device and driver are not ready for anything. probe
225 * should be called if and only if the PHY is in this state,
226 * given that the PHY device exists.
227 * - PHY driver probe function will, depending on the PHY, set
228 * the state to STARTING or READY
230 * STARTING: PHY device is coming up, and the ethernet driver is
231 * not ready. PHY drivers may set this in the probe function.
232 * If they do, they are responsible for making sure the state is
233 * eventually set to indicate whether the PHY is UP or READY,
234 * depending on the state when the PHY is done starting up.
235 * - PHY driver will set the state to READY
236 * - start will set the state to PENDING
238 * READY: PHY is ready to send and receive packets, but the
239 * controller is not. By default, PHYs which do not implement
240 * probe will be set to this state by phy_probe(). If the PHY
241 * driver knows the PHY is ready, and the PHY state is STARTING,
242 * then it sets this STATE.
243 * - start will set the state to UP
245 * PENDING: PHY device is coming up, but the ethernet driver is
246 * ready. phy_start will set this state if the PHY state is
248 * - PHY driver will set the state to UP when the PHY is ready
250 * UP: The PHY and attached device are ready to do work.
251 * Interrupts should be started here.
252 * - timer moves to AN
254 * AN: The PHY is currently negotiating the link state. Link is
255 * therefore down for now. phy_timer will set this state when it
256 * detects the state is UP. config_aneg will set this state
257 * whenever called with phydev->autoneg set to AUTONEG_ENABLE.
258 * - If autonegotiation finishes, but there's no link, it sets
259 * the state to NOLINK.
260 * - If aneg finishes with link, it sets the state to RUNNING,
261 * and calls adjust_link
262 * - If autonegotiation did not finish after an arbitrary amount
263 * of time, autonegotiation should be tried again if the PHY
264 * supports "magic" autonegotiation (back to AN)
265 * - If it didn't finish, and no magic_aneg, move to FORCING.
267 * NOLINK: PHY is up, but not currently plugged in.
268 * - If the timer notes that the link comes back, we move to RUNNING
269 * - config_aneg moves to AN
270 * - phy_stop moves to HALTED
272 * FORCING: PHY is being configured with forced settings
273 * - if link is up, move to RUNNING
274 * - If link is down, we drop to the next highest setting, and
275 * retry (FORCING) after a timeout
276 * - phy_stop moves to HALTED
278 * RUNNING: PHY is currently up, running, and possibly sending
279 * and/or receiving packets
280 * - timer will set CHANGELINK if we're polling (this ensures the
281 * link state is polled every other cycle of this state machine,
282 * which makes it every other second)
283 * - irq will set CHANGELINK
284 * - config_aneg will set AN
285 * - phy_stop moves to HALTED
287 * CHANGELINK: PHY experienced a change in link state
288 * - timer moves to RUNNING if link
289 * - timer moves to NOLINK if the link is down
290 * - phy_stop moves to HALTED
292 * HALTED: PHY is up, but no polling or interrupts are done. Or
293 * PHY is in an error state.
295 * - phy_start moves to RESUMING
297 * RESUMING: PHY was halted, but now wants to run again.
298 * - If we are forcing, or aneg is done, timer moves to RUNNING
299 * - If aneg is not done, timer moves to AN
300 * - phy_stop moves to HALTED
318 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
319 * @devices_in_package: Bit vector of devices present.
320 * @device_ids: The device identifer for each present device.
322 struct phy_c45_device_ids {
323 u32 devices_in_package;
327 /* phy_device: An instance of a PHY
329 * drv: Pointer to the driver for this PHY instance
330 * bus: Pointer to the bus this PHY is on
331 * dev: driver model device structure for this PHY
332 * phy_id: UID for this device found during discovery
333 * c45_ids: 802.3-c45 Device Identifers if is_c45.
334 * is_c45: Set to true if this phy uses clause 45 addressing.
335 * is_internal: Set to true if this phy is internal to a MAC.
336 * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc.
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 * state: state of the PHY for management purposes
340 * dev_flags: Device-specific flags used by the PHY driver.
341 * addr: Bus address of PHY
342 * link_timeout: The number of timer firings to wait before the
343 * giving up on the current attempt at acquiring a link
344 * irq: IRQ number of the PHY's interrupt (-1 if none)
345 * phy_timer: The timer for handling the state machine
346 * phy_queue: A work_queue for the interrupt
347 * attached_dev: The attached enet driver's device instance ptr
348 * adjust_link: Callback for the enet controller to respond to
349 * changes in the link state.
351 * speed, duplex, pause, supported, advertising, lp_advertising,
352 * and autoneg are used like in mii_if_info
354 * interrupts currently only supports enabled or disabled,
355 * but could be changed in the future to support enabling
356 * and disabling specific interrupts
358 * Contains some infrastructure for polling and interrupt
359 * handling, as well as handling shifts in PHY hardware state
362 /* Information about the PHY type */
363 /* And management functions */
364 struct phy_driver *drv;
372 struct phy_c45_device_ids c45_ids;
375 bool is_pseudo_fixed_link;
379 enum phy_state state;
383 phy_interface_t interface;
385 /* Bus address of the PHY (0-31) */
389 * forced speed & duplex (no autoneg)
390 * partner speed & duplex & pause (autoneg)
397 /* The most recently read link state */
400 /* Enabled Interrupts */
403 /* Union of PHY and Attached devices' supported modes */
404 /* See mii.h for more info */
414 * Interrupt number for this PHY
415 * -1 means no interrupt
419 /* private data pointer */
420 /* For use by PHYs to maintain extra state */
423 /* Interrupt and Polling infrastructure */
424 struct work_struct phy_queue;
425 struct delayed_work state_queue;
426 atomic_t irq_disable;
430 struct net_device *attached_dev;
434 void (*adjust_link)(struct net_device *dev);
436 #define to_phy_device(d) container_of(d, struct phy_device, dev)
438 /* struct phy_driver: Driver structure for a particular PHY type
440 * phy_id: The result of reading the UID registers of this PHY
441 * type, and ANDing them with the phy_id_mask. This driver
442 * only works for PHYs with IDs which match this field
443 * name: The friendly name of this PHY type
444 * phy_id_mask: Defines the important bits of the phy_id
445 * features: A list of features (speed, duplex, etc) supported
447 * flags: A bitfield defining certain other features this PHY
448 * supports (like interrupts)
449 * driver_data: static driver data
451 * The drivers must implement config_aneg and read_status. All
452 * other functions are optional. Note that none of these
453 * functions should be called from interrupt time. The goal is
454 * for the bus read/write functions to be able to block when the
455 * bus transaction is happening, and be freed up by an interrupt
456 * (The MPC85xx has this ability, though it is not currently
457 * supported in the driver).
462 unsigned int phy_id_mask;
465 const void *driver_data;
468 * Called to issue a PHY software reset
470 int (*soft_reset)(struct phy_device *phydev);
473 * Called to initialize the PHY,
474 * including after a reset
476 int (*config_init)(struct phy_device *phydev);
479 * Called during discovery. Used to set
480 * up device-specific structures, if any
482 int (*probe)(struct phy_device *phydev);
484 /* PHY Power Management */
485 int (*suspend)(struct phy_device *phydev);
486 int (*resume)(struct phy_device *phydev);
489 * Configures the advertisement and resets
490 * autonegotiation if phydev->autoneg is on,
491 * forces the speed to the current settings in phydev
492 * if phydev->autoneg is off
494 int (*config_aneg)(struct phy_device *phydev);
496 /* Determines the auto negotiation result */
497 int (*aneg_done)(struct phy_device *phydev);
499 /* Determines the negotiated speed and duplex */
500 int (*read_status)(struct phy_device *phydev);
502 /* Clears any pending interrupts */
503 int (*ack_interrupt)(struct phy_device *phydev);
505 /* Enables or disables interrupts */
506 int (*config_intr)(struct phy_device *phydev);
509 * Checks if the PHY generated an interrupt.
510 * For multi-PHY devices with shared PHY interrupt pin
512 int (*did_interrupt)(struct phy_device *phydev);
514 /* Clears up any memory if needed */
515 void (*remove)(struct phy_device *phydev);
517 /* Returns true if this is a suitable driver for the given
518 * phydev. If NULL, matching is based on phy_id and
521 int (*match_phy_device)(struct phy_device *phydev);
523 /* Handles ethtool queries for hardware time stamping. */
524 int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
526 /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
527 int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
530 * Requests a Rx timestamp for 'skb'. If the skb is accepted,
531 * the phy driver promises to deliver it using netif_rx() as
532 * soon as a timestamp becomes available. One of the
533 * PTP_CLASS_ values is passed in 'type'. The function must
534 * return true if the skb is accepted for delivery.
536 bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
539 * Requests a Tx timestamp for 'skb'. The phy driver promises
540 * to deliver it using skb_complete_tx_timestamp() as soon as a
541 * timestamp becomes available. One of the PTP_CLASS_ values
542 * is passed in 'type'.
544 void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
546 /* Some devices (e.g. qnap TS-119P II) require PHY register changes to
547 * enable Wake on LAN, so set_wol is provided to be called in the
548 * ethernet driver's set_wol function. */
549 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
551 /* See set_wol, but for checking whether Wake on LAN is enabled. */
552 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
555 * Called to inform a PHY device driver when the core is about to
556 * change the link state. This callback is supposed to be used as
557 * fixup hook for drivers that need to take action when the link
558 * state changes. Drivers are by no means allowed to mess with the
559 * PHY device structure in their implementations.
561 void (*link_change_notify)(struct phy_device *dev);
563 /* A function provided by a phy specific driver to override the
564 * the PHY driver framework support for reading a MMD register
565 * from the PHY. If not supported, return -1. This function is
566 * optional for PHY specific drivers, if not provided then the
567 * default MMD read function is used by the PHY framework.
569 int (*read_mmd_indirect)(struct phy_device *dev, int ptrad,
570 int devnum, int regnum);
572 /* A function provided by a phy specific driver to override the
573 * the PHY driver framework support for writing a MMD register
574 * from the PHY. This function is optional for PHY specific drivers,
575 * if not provided then the default MMD read function is used by
578 void (*write_mmd_indirect)(struct phy_device *dev, int ptrad,
579 int devnum, int regnum, u32 val);
581 /* Get the size and type of the eeprom contained within a plug-in
583 int (*module_info)(struct phy_device *dev,
584 struct ethtool_modinfo *modinfo);
586 /* Get the eeprom information from the plug-in module */
587 int (*module_eeprom)(struct phy_device *dev,
588 struct ethtool_eeprom *ee, u8 *data);
590 struct device_driver driver;
592 #define to_phy_driver(d) container_of(d, struct phy_driver, driver)
594 #define PHY_ANY_ID "MATCH ANY PHY"
595 #define PHY_ANY_UID 0xffffffff
597 /* A Structure for boards to register fixups with the PHY Lib */
599 struct list_head list;
603 int (*run)(struct phy_device *phydev);
607 * phy_read_mmd - Convenience function for reading a register
608 * from an MMD on a given PHY.
609 * @phydev: The phy_device struct
610 * @devad: The MMD to read from
611 * @regnum: The register on the MMD to read
613 * Same rules as for phy_read();
615 static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
620 return mdiobus_read(phydev->bus, phydev->addr,
621 MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
625 * phy_read_mmd_indirect - reads data from the MMD registers
626 * @phydev: The PHY device bus
627 * @prtad: MMD Address
629 * @addr: PHY address on the MII bus
631 * Description: it reads data from the MMD registers (clause 22 to access to
632 * clause 45) of the specified phy address.
634 int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
635 int devad, int addr);
638 * phy_read - Convenience function for reading a given PHY register
639 * @phydev: the phy_device struct
640 * @regnum: register number to read
642 * NOTE: MUST NOT be called from interrupt context,
643 * because the bus read/write functions may wait for an interrupt
644 * to conclude the operation.
646 static inline int phy_read(struct phy_device *phydev, u32 regnum)
648 return mdiobus_read(phydev->bus, phydev->addr, regnum);
652 * phy_write - Convenience function for writing a given PHY register
653 * @phydev: the phy_device struct
654 * @regnum: register number to write
655 * @val: value to write to @regnum
657 * NOTE: MUST NOT be called from interrupt context,
658 * because the bus read/write functions may wait for an interrupt
659 * to conclude the operation.
661 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
663 return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
667 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
668 * @phydev: the phy_device struct
670 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
671 * PHY_IGNORE_INTERRUPT
673 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
675 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
679 * phy_is_internal - Convenience function for testing if a PHY is internal
680 * @phydev: the phy_device struct
682 static inline bool phy_is_internal(struct phy_device *phydev)
684 return phydev->is_internal;
688 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
689 * is RGMII (all variants)
690 * @phydev: the phy_device struct
692 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
694 return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
695 phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
699 * phy_is_pseudo_fixed_link - Convenience function for testing if this
700 * PHY is the CPU port facing side of an Ethernet switch, or similar.
701 * @phydev: the phy_device struct
703 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
705 return phydev->is_pseudo_fixed_link;
709 * phy_write_mmd - Convenience function for writing a register
710 * on an MMD on a given PHY.
711 * @phydev: The phy_device struct
712 * @devad: The MMD to read from
713 * @regnum: The register on the MMD to read
714 * @val: value to write to @regnum
716 * Same rules as for phy_write();
718 static inline int phy_write_mmd(struct phy_device *phydev, int devad,
724 regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
726 return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
730 * phy_write_mmd_indirect - writes data to the MMD registers
731 * @phydev: The PHY device
732 * @prtad: MMD Address
734 * @addr: PHY address on the MII bus
735 * @data: data to write in the MMD register
737 * Description: Write data from the MMD registers of the specified
740 void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
741 int devad, int addr, u32 data);
743 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
745 struct phy_c45_device_ids *c45_ids);
746 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
747 int phy_device_register(struct phy_device *phy);
748 void phy_device_remove(struct phy_device *phydev);
749 int phy_init_hw(struct phy_device *phydev);
750 int phy_suspend(struct phy_device *phydev);
751 int phy_resume(struct phy_device *phydev);
752 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
753 phy_interface_t interface);
754 struct phy_device *phy_find_first(struct mii_bus *bus);
755 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
756 u32 flags, phy_interface_t interface);
757 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
758 void (*handler)(struct net_device *),
759 phy_interface_t interface);
760 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
761 void (*handler)(struct net_device *),
762 phy_interface_t interface);
763 void phy_disconnect(struct phy_device *phydev);
764 void phy_detach(struct phy_device *phydev);
765 void phy_start(struct phy_device *phydev);
766 void phy_stop(struct phy_device *phydev);
767 int phy_start_aneg(struct phy_device *phydev);
769 int phy_stop_interrupts(struct phy_device *phydev);
771 static inline int phy_read_status(struct phy_device *phydev)
773 return phydev->drv->read_status(phydev);
776 int genphy_config_init(struct phy_device *phydev);
777 int genphy_setup_forced(struct phy_device *phydev);
778 int genphy_restart_aneg(struct phy_device *phydev);
779 int genphy_config_aneg(struct phy_device *phydev);
780 int genphy_aneg_done(struct phy_device *phydev);
781 int genphy_update_link(struct phy_device *phydev);
782 int genphy_read_status(struct phy_device *phydev);
783 int genphy_suspend(struct phy_device *phydev);
784 int genphy_resume(struct phy_device *phydev);
785 int genphy_soft_reset(struct phy_device *phydev);
786 void phy_driver_unregister(struct phy_driver *drv);
787 void phy_drivers_unregister(struct phy_driver *drv, int n);
788 int phy_driver_register(struct phy_driver *new_driver);
789 int phy_drivers_register(struct phy_driver *new_driver, int n);
790 void phy_state_machine(struct work_struct *work);
791 void phy_change(struct work_struct *work);
792 void phy_mac_interrupt(struct phy_device *phydev, int new_link);
793 void phy_start_machine(struct phy_device *phydev);
794 void phy_stop_machine(struct phy_device *phydev);
795 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
796 int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
797 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
798 int phy_start_interrupts(struct phy_device *phydev);
799 void phy_print_status(struct phy_device *phydev);
800 void phy_device_free(struct phy_device *phydev);
802 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
803 int (*run)(struct phy_device *));
804 int phy_register_fixup_for_id(const char *bus_id,
805 int (*run)(struct phy_device *));
806 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
807 int (*run)(struct phy_device *));
809 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
810 int phy_get_eee_err(struct phy_device *phydev);
811 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
812 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
813 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
814 void phy_ethtool_get_wol(struct phy_device *phydev,
815 struct ethtool_wolinfo *wol);
817 int __init mdio_bus_init(void);
818 void mdio_bus_exit(void);
820 extern struct bus_type mdio_bus_type;
823 * module_phy_driver() - Helper macro for registering PHY drivers
824 * @__phy_drivers: array of PHY drivers to register
826 * Helper macro for PHY drivers which do not do anything special in module
827 * init/exit. Each module may only use this macro once, and calling it
828 * replaces module_init() and module_exit().
830 #define phy_module_driver(__phy_drivers, __count) \
831 static int __init phy_module_init(void) \
833 return phy_drivers_register(__phy_drivers, __count); \
835 module_init(phy_module_init); \
836 static void __exit phy_module_exit(void) \
838 phy_drivers_unregister(__phy_drivers, __count); \
840 module_exit(phy_module_exit)
842 #define module_phy_driver(__phy_drivers) \
843 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))