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/compiler.h>
20 #include <linux/spinlock.h>
21 #include <linux/ethtool.h>
22 #include <linux/mdio.h>
23 #include <linux/mii.h>
24 #include <linux/module.h>
25 #include <linux/timer.h>
26 #include <linux/workqueue.h>
27 #include <linux/mod_devicetable.h>
29 #include <linux/atomic.h>
31 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
35 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
36 SUPPORTED_10baseT_Full)
38 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
39 SUPPORTED_100baseT_Full)
41 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
42 SUPPORTED_1000baseT_Full)
44 #define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \
45 PHY_100BT_FEATURES | \
48 #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
53 * Set phydev->irq to PHY_POLL if interrupts are not supported,
54 * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if
55 * the attached driver handles the interrupt
58 #define PHY_IGNORE_INTERRUPT -2
60 #define PHY_HAS_INTERRUPT 0x00000001
61 #define PHY_HAS_MAGICANEG 0x00000002
62 #define PHY_IS_INTERNAL 0x00000004
63 #define MDIO_DEVICE_IS_PHY 0x80000000
65 /* Interface Mode definitions */
67 PHY_INTERFACE_MODE_NA,
68 PHY_INTERFACE_MODE_MII,
69 PHY_INTERFACE_MODE_GMII,
70 PHY_INTERFACE_MODE_SGMII,
71 PHY_INTERFACE_MODE_TBI,
72 PHY_INTERFACE_MODE_REVMII,
73 PHY_INTERFACE_MODE_RMII,
74 PHY_INTERFACE_MODE_RGMII,
75 PHY_INTERFACE_MODE_RGMII_ID,
76 PHY_INTERFACE_MODE_RGMII_RXID,
77 PHY_INTERFACE_MODE_RGMII_TXID,
78 PHY_INTERFACE_MODE_RTBI,
79 PHY_INTERFACE_MODE_SMII,
80 PHY_INTERFACE_MODE_XGMII,
81 PHY_INTERFACE_MODE_MOCA,
82 PHY_INTERFACE_MODE_QSGMII,
83 PHY_INTERFACE_MODE_TRGMII,
84 PHY_INTERFACE_MODE_1000BASEX,
85 PHY_INTERFACE_MODE_2500BASEX,
86 PHY_INTERFACE_MODE_RXAUI,
87 PHY_INTERFACE_MODE_MAX,
91 * phy_supported_speeds - return all speeds currently supported by a phy device
92 * @phy: The phy device to return supported speeds of.
93 * @speeds: buffer to store supported speeds in.
94 * @size: size of speeds buffer.
96 * Description: Returns the number of supported speeds, and
97 * fills the speeds * buffer with the supported speeds. If speeds buffer is
98 * too small to contain * all currently supported speeds, will return as
99 * many speeds as can fit.
101 unsigned int phy_supported_speeds(struct phy_device *phy,
102 unsigned int *speeds,
106 * It maps 'enum phy_interface_t' found in include/linux/phy.h
107 * into the device tree binding of 'phy-mode', so that Ethernet
108 * device driver can get phy interface from device tree.
110 static inline const char *phy_modes(phy_interface_t interface)
113 case PHY_INTERFACE_MODE_NA:
115 case PHY_INTERFACE_MODE_MII:
117 case PHY_INTERFACE_MODE_GMII:
119 case PHY_INTERFACE_MODE_SGMII:
121 case PHY_INTERFACE_MODE_TBI:
123 case PHY_INTERFACE_MODE_REVMII:
125 case PHY_INTERFACE_MODE_RMII:
127 case PHY_INTERFACE_MODE_RGMII:
129 case PHY_INTERFACE_MODE_RGMII_ID:
131 case PHY_INTERFACE_MODE_RGMII_RXID:
133 case PHY_INTERFACE_MODE_RGMII_TXID:
135 case PHY_INTERFACE_MODE_RTBI:
137 case PHY_INTERFACE_MODE_SMII:
139 case PHY_INTERFACE_MODE_XGMII:
141 case PHY_INTERFACE_MODE_MOCA:
143 case PHY_INTERFACE_MODE_QSGMII:
145 case PHY_INTERFACE_MODE_TRGMII:
147 case PHY_INTERFACE_MODE_1000BASEX:
149 case PHY_INTERFACE_MODE_2500BASEX:
151 case PHY_INTERFACE_MODE_RXAUI:
159 #define PHY_INIT_TIMEOUT 100000
160 #define PHY_STATE_TIME 1
161 #define PHY_FORCE_TIMEOUT 10
162 #define PHY_AN_TIMEOUT 10
164 #define PHY_MAX_ADDR 32
166 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
167 #define PHY_ID_FMT "%s:%02x"
169 #define MII_BUS_ID_SIZE 61
171 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
172 IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
173 #define MII_ADDR_C45 (1<<30)
179 * The Bus class for PHYs. Devices which provide access to
180 * PHYs should register using this structure
183 struct module *owner;
185 char id[MII_BUS_ID_SIZE];
187 int (*read)(struct mii_bus *bus, int addr, int regnum);
188 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
189 int (*reset)(struct mii_bus *bus);
192 * A lock to ensure that only one thing can read/write
193 * the MDIO bus at a time
195 struct mutex mdio_lock;
197 struct device *parent;
199 MDIOBUS_ALLOCATED = 1,
201 MDIOBUS_UNREGISTERED,
206 /* list of all PHYs on bus */
207 struct mdio_device *mdio_map[PHY_MAX_ADDR];
209 /* PHY addresses to be ignored when probing */
212 /* PHY addresses to ignore the TA/read failure */
213 u32 phy_ignore_ta_mask;
216 * An array of interrupts, each PHY's interrupt at the index
217 * matching its address
219 int irq[PHY_MAX_ADDR];
221 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
223 struct mii_bus *mdiobus_alloc_size(size_t);
224 static inline struct mii_bus *mdiobus_alloc(void)
226 return mdiobus_alloc_size(0);
229 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
230 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
231 void mdiobus_unregister(struct mii_bus *bus);
232 void mdiobus_free(struct mii_bus *bus);
233 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
234 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
236 return devm_mdiobus_alloc_size(dev, 0);
239 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
240 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
242 #define PHY_INTERRUPT_DISABLED 0x0
243 #define PHY_INTERRUPT_ENABLED 0x80000000
245 /* PHY state machine states:
247 * DOWN: PHY device and driver are not ready for anything. probe
248 * should be called if and only if the PHY is in this state,
249 * given that the PHY device exists.
250 * - PHY driver probe function will, depending on the PHY, set
251 * the state to STARTING or READY
253 * STARTING: PHY device is coming up, and the ethernet driver is
254 * not ready. PHY drivers may set this in the probe function.
255 * If they do, they are responsible for making sure the state is
256 * eventually set to indicate whether the PHY is UP or READY,
257 * depending on the state when the PHY is done starting up.
258 * - PHY driver will set the state to READY
259 * - start will set the state to PENDING
261 * READY: PHY is ready to send and receive packets, but the
262 * controller is not. By default, PHYs which do not implement
263 * probe will be set to this state by phy_probe(). If the PHY
264 * driver knows the PHY is ready, and the PHY state is STARTING,
265 * then it sets this STATE.
266 * - start will set the state to UP
268 * PENDING: PHY device is coming up, but the ethernet driver is
269 * ready. phy_start will set this state if the PHY state is
271 * - PHY driver will set the state to UP when the PHY is ready
273 * UP: The PHY and attached device are ready to do work.
274 * Interrupts should be started here.
275 * - timer moves to AN
277 * AN: The PHY is currently negotiating the link state. Link is
278 * therefore down for now. phy_timer will set this state when it
279 * detects the state is UP. config_aneg will set this state
280 * whenever called with phydev->autoneg set to AUTONEG_ENABLE.
281 * - If autonegotiation finishes, but there's no link, it sets
282 * the state to NOLINK.
283 * - If aneg finishes with link, it sets the state to RUNNING,
284 * and calls adjust_link
285 * - If autonegotiation did not finish after an arbitrary amount
286 * of time, autonegotiation should be tried again if the PHY
287 * supports "magic" autonegotiation (back to AN)
288 * - If it didn't finish, and no magic_aneg, move to FORCING.
290 * NOLINK: PHY is up, but not currently plugged in.
291 * - If the timer notes that the link comes back, we move to RUNNING
292 * - config_aneg moves to AN
293 * - phy_stop moves to HALTED
295 * FORCING: PHY is being configured with forced settings
296 * - if link is up, move to RUNNING
297 * - If link is down, we drop to the next highest setting, and
298 * retry (FORCING) after a timeout
299 * - phy_stop moves to HALTED
301 * RUNNING: PHY is currently up, running, and possibly sending
302 * and/or receiving packets
303 * - timer will set CHANGELINK if we're polling (this ensures the
304 * link state is polled every other cycle of this state machine,
305 * which makes it every other second)
306 * - irq will set CHANGELINK
307 * - config_aneg will set AN
308 * - phy_stop moves to HALTED
310 * CHANGELINK: PHY experienced a change in link state
311 * - timer moves to RUNNING if link
312 * - timer moves to NOLINK if the link is down
313 * - phy_stop moves to HALTED
315 * HALTED: PHY is up, but no polling or interrupts are done. Or
316 * PHY is in an error state.
318 * - phy_start moves to RESUMING
320 * RESUMING: PHY was halted, but now wants to run again.
321 * - If we are forcing, or aneg is done, timer moves to RUNNING
322 * - If aneg is not done, timer moves to AN
323 * - phy_stop moves to HALTED
341 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
342 * @devices_in_package: Bit vector of devices present.
343 * @device_ids: The device identifer for each present device.
345 struct phy_c45_device_ids {
346 u32 devices_in_package;
350 /* phy_device: An instance of a PHY
352 * drv: Pointer to the driver for this PHY instance
353 * phy_id: UID for this device found during discovery
354 * c45_ids: 802.3-c45 Device Identifers if is_c45.
355 * is_c45: Set to true if this phy uses clause 45 addressing.
356 * is_internal: Set to true if this phy is internal to a MAC.
357 * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc.
358 * has_fixups: Set to true if this phy has fixups/quirks.
359 * suspended: Set to true if this phy has been suspended successfully.
360 * state: state of the PHY for management purposes
361 * dev_flags: Device-specific flags used by the PHY driver.
362 * link_timeout: The number of timer firings to wait before the
363 * giving up on the current attempt at acquiring a link
364 * irq: IRQ number of the PHY's interrupt (-1 if none)
365 * phy_timer: The timer for handling the state machine
366 * phy_queue: A work_queue for the phy_mac_interrupt
367 * attached_dev: The attached enet driver's device instance ptr
368 * adjust_link: Callback for the enet controller to respond to
369 * changes in the link state.
371 * speed, duplex, pause, supported, advertising, lp_advertising,
372 * and autoneg are used like in mii_if_info
374 * interrupts currently only supports enabled or disabled,
375 * but could be changed in the future to support enabling
376 * and disabling specific interrupts
378 * Contains some infrastructure for polling and interrupt
379 * handling, as well as handling shifts in PHY hardware state
382 struct mdio_device mdio;
384 /* Information about the PHY type */
385 /* And management functions */
386 struct phy_driver *drv;
390 struct phy_c45_device_ids c45_ids;
393 bool is_pseudo_fixed_link;
397 enum phy_state state;
401 phy_interface_t interface;
404 * forced speed & duplex (no autoneg)
405 * partner speed & duplex & pause (autoneg)
412 /* The most recently read link state */
415 /* Enabled Interrupts */
418 /* Union of PHY and Attached devices' supported modes */
419 /* See mii.h for more info */
424 /* Energy efficient ethernet modes which should be prohibited */
425 u32 eee_broken_modes;
431 #ifdef CONFIG_LED_TRIGGER_PHY
432 struct phy_led_trigger *phy_led_triggers;
433 unsigned int phy_num_led_triggers;
434 struct phy_led_trigger *last_triggered;
438 * Interrupt number for this PHY
439 * -1 means no interrupt
443 /* private data pointer */
444 /* For use by PHYs to maintain extra state */
447 /* Interrupt and Polling infrastructure */
448 struct work_struct phy_queue;
449 struct delayed_work state_queue;
450 atomic_t irq_disable;
454 struct net_device *attached_dev;
459 void (*adjust_link)(struct net_device *dev);
461 #define to_phy_device(d) container_of(to_mdio_device(d), \
462 struct phy_device, mdio)
464 /* struct phy_driver: Driver structure for a particular PHY type
466 * driver_data: static driver data
467 * phy_id: The result of reading the UID registers of this PHY
468 * type, and ANDing them with the phy_id_mask. This driver
469 * only works for PHYs with IDs which match this field
470 * name: The friendly name of this PHY type
471 * phy_id_mask: Defines the important bits of the phy_id
472 * features: A list of features (speed, duplex, etc) supported
474 * flags: A bitfield defining certain other features this PHY
475 * supports (like interrupts)
477 * The drivers must implement config_aneg and read_status. All
478 * other functions are optional. Note that none of these
479 * functions should be called from interrupt time. The goal is
480 * for the bus read/write functions to be able to block when the
481 * bus transaction is happening, and be freed up by an interrupt
482 * (The MPC85xx has this ability, though it is not currently
483 * supported in the driver).
486 struct mdio_driver_common mdiodrv;
489 unsigned int phy_id_mask;
492 const void *driver_data;
495 * Called to issue a PHY software reset
497 int (*soft_reset)(struct phy_device *phydev);
500 * Called to initialize the PHY,
501 * including after a reset
503 int (*config_init)(struct phy_device *phydev);
506 * Called during discovery. Used to set
507 * up device-specific structures, if any
509 int (*probe)(struct phy_device *phydev);
511 /* PHY Power Management */
512 int (*suspend)(struct phy_device *phydev);
513 int (*resume)(struct phy_device *phydev);
516 * Configures the advertisement and resets
517 * autonegotiation if phydev->autoneg is on,
518 * forces the speed to the current settings in phydev
519 * if phydev->autoneg is off
521 int (*config_aneg)(struct phy_device *phydev);
523 /* Determines the auto negotiation result */
524 int (*aneg_done)(struct phy_device *phydev);
526 /* Determines the negotiated speed and duplex */
527 int (*read_status)(struct phy_device *phydev);
529 /* Clears any pending interrupts */
530 int (*ack_interrupt)(struct phy_device *phydev);
532 /* Enables or disables interrupts */
533 int (*config_intr)(struct phy_device *phydev);
536 * Checks if the PHY generated an interrupt.
537 * For multi-PHY devices with shared PHY interrupt pin
539 int (*did_interrupt)(struct phy_device *phydev);
541 /* Clears up any memory if needed */
542 void (*remove)(struct phy_device *phydev);
544 /* Returns true if this is a suitable driver for the given
545 * phydev. If NULL, matching is based on phy_id and
548 int (*match_phy_device)(struct phy_device *phydev);
550 /* Handles ethtool queries for hardware time stamping. */
551 int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
553 /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
554 int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
557 * Requests a Rx timestamp for 'skb'. If the skb is accepted,
558 * the phy driver promises to deliver it using netif_rx() as
559 * soon as a timestamp becomes available. One of the
560 * PTP_CLASS_ values is passed in 'type'. The function must
561 * return true if the skb is accepted for delivery.
563 bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
566 * Requests a Tx timestamp for 'skb'. The phy driver promises
567 * to deliver it using skb_complete_tx_timestamp() as soon as a
568 * timestamp becomes available. One of the PTP_CLASS_ values
569 * is passed in 'type'.
571 void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
573 /* Some devices (e.g. qnap TS-119P II) require PHY register changes to
574 * enable Wake on LAN, so set_wol is provided to be called in the
575 * ethernet driver's set_wol function. */
576 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
578 /* See set_wol, but for checking whether Wake on LAN is enabled. */
579 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
582 * Called to inform a PHY device driver when the core is about to
583 * change the link state. This callback is supposed to be used as
584 * fixup hook for drivers that need to take action when the link
585 * state changes. Drivers are by no means allowed to mess with the
586 * PHY device structure in their implementations.
588 void (*link_change_notify)(struct phy_device *dev);
590 /* A function provided by a phy specific driver to override the
591 * the PHY driver framework support for reading a MMD register
592 * from the PHY. If not supported, return -1. This function is
593 * optional for PHY specific drivers, if not provided then the
594 * default MMD read function is used by the PHY framework.
596 int (*read_mmd_indirect)(struct phy_device *dev, int ptrad,
597 int devnum, int regnum);
599 /* A function provided by a phy specific driver to override the
600 * the PHY driver framework support for writing a MMD register
601 * from the PHY. This function is optional for PHY specific drivers,
602 * if not provided then the default MMD read function is used by
605 void (*write_mmd_indirect)(struct phy_device *dev, int ptrad,
606 int devnum, int regnum, u32 val);
608 /* Get the size and type of the eeprom contained within a plug-in
610 int (*module_info)(struct phy_device *dev,
611 struct ethtool_modinfo *modinfo);
613 /* Get the eeprom information from the plug-in module */
614 int (*module_eeprom)(struct phy_device *dev,
615 struct ethtool_eeprom *ee, u8 *data);
617 /* Get statistics from the phy using ethtool */
618 int (*get_sset_count)(struct phy_device *dev);
619 void (*get_strings)(struct phy_device *dev, u8 *data);
620 void (*get_stats)(struct phy_device *dev,
621 struct ethtool_stats *stats, u64 *data);
623 /* Get and Set PHY tunables */
624 int (*get_tunable)(struct phy_device *dev,
625 struct ethtool_tunable *tuna, void *data);
626 int (*set_tunable)(struct phy_device *dev,
627 struct ethtool_tunable *tuna,
630 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
631 struct phy_driver, mdiodrv)
633 #define PHY_ANY_ID "MATCH ANY PHY"
634 #define PHY_ANY_UID 0xffffffff
636 /* A Structure for boards to register fixups with the PHY Lib */
638 struct list_head list;
639 char bus_id[MII_BUS_ID_SIZE + 3];
642 int (*run)(struct phy_device *phydev);
646 * phy_read_mmd - Convenience function for reading a register
647 * from an MMD on a given PHY.
648 * @phydev: The phy_device struct
649 * @devad: The MMD to read from
650 * @regnum: The register on the MMD to read
652 * Same rules as for phy_read();
654 static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
659 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
660 MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
664 * phy_read_mmd_indirect - reads data from the MMD registers
665 * @phydev: The PHY device bus
666 * @prtad: MMD Address
667 * @addr: PHY address on the MII bus
669 * Description: it reads data from the MMD registers (clause 22 to access to
670 * clause 45) of the specified phy address.
672 int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad);
675 * phy_read - Convenience function for reading a given PHY register
676 * @phydev: the phy_device struct
677 * @regnum: register number to read
679 * NOTE: MUST NOT be called from interrupt context,
680 * because the bus read/write functions may wait for an interrupt
681 * to conclude the operation.
683 static inline int phy_read(struct phy_device *phydev, u32 regnum)
685 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
689 * phy_write - Convenience function for writing a given PHY register
690 * @phydev: the phy_device struct
691 * @regnum: register number to write
692 * @val: value to write to @regnum
694 * NOTE: MUST NOT be called from interrupt context,
695 * because the bus read/write functions may wait for an interrupt
696 * to conclude the operation.
698 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
700 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
704 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
705 * @phydev: the phy_device struct
707 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
708 * PHY_IGNORE_INTERRUPT
710 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
712 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
716 * phy_is_internal - Convenience function for testing if a PHY is internal
717 * @phydev: the phy_device struct
719 static inline bool phy_is_internal(struct phy_device *phydev)
721 return phydev->is_internal;
725 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
726 * is RGMII (all variants)
727 * @phydev: the phy_device struct
729 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
731 return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
732 phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
736 * phy_is_pseudo_fixed_link - Convenience function for testing if this
737 * PHY is the CPU port facing side of an Ethernet switch, or similar.
738 * @phydev: the phy_device struct
740 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
742 return phydev->is_pseudo_fixed_link;
746 * phy_write_mmd - Convenience function for writing a register
747 * on an MMD on a given PHY.
748 * @phydev: The phy_device struct
749 * @devad: The MMD to read from
750 * @regnum: The register on the MMD to read
751 * @val: value to write to @regnum
753 * Same rules as for phy_write();
755 static inline int phy_write_mmd(struct phy_device *phydev, int devad,
761 regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
763 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
767 * phy_write_mmd_indirect - writes data to the MMD registers
768 * @phydev: The PHY device
769 * @prtad: MMD Address
771 * @data: data to write in the MMD register
773 * Description: Write data from the MMD registers of the specified
776 void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
777 int devad, u32 data);
779 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
781 struct phy_c45_device_ids *c45_ids);
782 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
783 int phy_device_register(struct phy_device *phy);
784 void phy_device_remove(struct phy_device *phydev);
785 int phy_init_hw(struct phy_device *phydev);
786 int phy_suspend(struct phy_device *phydev);
787 int phy_resume(struct phy_device *phydev);
788 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
789 phy_interface_t interface);
790 struct phy_device *phy_find_first(struct mii_bus *bus);
791 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
792 u32 flags, phy_interface_t interface);
793 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
794 void (*handler)(struct net_device *),
795 phy_interface_t interface);
796 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
797 void (*handler)(struct net_device *),
798 phy_interface_t interface);
799 void phy_disconnect(struct phy_device *phydev);
800 void phy_detach(struct phy_device *phydev);
801 void phy_start(struct phy_device *phydev);
802 void phy_stop(struct phy_device *phydev);
803 int phy_start_aneg(struct phy_device *phydev);
804 int phy_aneg_done(struct phy_device *phydev);
806 int phy_stop_interrupts(struct phy_device *phydev);
808 static inline int phy_read_status(struct phy_device *phydev)
813 return phydev->drv->read_status(phydev);
816 #define phydev_err(_phydev, format, args...) \
817 dev_err(&_phydev->mdio.dev, format, ##args)
819 #define phydev_dbg(_phydev, format, args...) \
820 dev_dbg(&_phydev->mdio.dev, format, ##args);
822 static inline const char *phydev_name(const struct phy_device *phydev)
824 return dev_name(&phydev->mdio.dev);
827 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
829 void phy_attached_info(struct phy_device *phydev);
830 int genphy_config_init(struct phy_device *phydev);
831 int genphy_setup_forced(struct phy_device *phydev);
832 int genphy_restart_aneg(struct phy_device *phydev);
833 int genphy_config_aneg(struct phy_device *phydev);
834 int genphy_aneg_done(struct phy_device *phydev);
835 int genphy_update_link(struct phy_device *phydev);
836 int genphy_read_status(struct phy_device *phydev);
837 int genphy_suspend(struct phy_device *phydev);
838 int genphy_resume(struct phy_device *phydev);
839 int genphy_soft_reset(struct phy_device *phydev);
840 static inline int genphy_no_soft_reset(struct phy_device *phydev)
844 void phy_driver_unregister(struct phy_driver *drv);
845 void phy_drivers_unregister(struct phy_driver *drv, int n);
846 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
847 int phy_drivers_register(struct phy_driver *new_driver, int n,
848 struct module *owner);
849 void phy_state_machine(struct work_struct *work);
850 void phy_change(struct phy_device *phydev);
851 void phy_change_work(struct work_struct *work);
852 void phy_mac_interrupt(struct phy_device *phydev, int new_link);
853 void phy_start_machine(struct phy_device *phydev);
854 void phy_stop_machine(struct phy_device *phydev);
855 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
856 int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
857 int phy_ethtool_ksettings_get(struct phy_device *phydev,
858 struct ethtool_link_ksettings *cmd);
859 int phy_ethtool_ksettings_set(struct phy_device *phydev,
860 const struct ethtool_link_ksettings *cmd);
861 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
862 int phy_start_interrupts(struct phy_device *phydev);
863 void phy_print_status(struct phy_device *phydev);
864 void phy_device_free(struct phy_device *phydev);
865 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
867 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
868 int (*run)(struct phy_device *));
869 int phy_register_fixup_for_id(const char *bus_id,
870 int (*run)(struct phy_device *));
871 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
872 int (*run)(struct phy_device *));
874 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
875 int phy_unregister_fixup_for_id(const char *bus_id);
876 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
878 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
879 int phy_get_eee_err(struct phy_device *phydev);
880 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
881 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
882 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
883 void phy_ethtool_get_wol(struct phy_device *phydev,
884 struct ethtool_wolinfo *wol);
885 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
886 struct ethtool_link_ksettings *cmd);
887 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
888 const struct ethtool_link_ksettings *cmd);
889 int phy_ethtool_nway_reset(struct net_device *ndev);
891 int __init mdio_bus_init(void);
892 void mdio_bus_exit(void);
894 extern struct bus_type mdio_bus_type;
896 struct mdio_board_info {
898 char modalias[MDIO_NAME_SIZE];
900 const void *platform_data;
903 #if IS_ENABLED(CONFIG_PHYLIB)
904 int mdiobus_register_board_info(const struct mdio_board_info *info,
907 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
916 * module_phy_driver() - Helper macro for registering PHY drivers
917 * @__phy_drivers: array of PHY drivers to register
919 * Helper macro for PHY drivers which do not do anything special in module
920 * init/exit. Each module may only use this macro once, and calling it
921 * replaces module_init() and module_exit().
923 #define phy_module_driver(__phy_drivers, __count) \
924 static int __init phy_module_init(void) \
926 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
928 module_init(phy_module_init); \
929 static void __exit phy_module_exit(void) \
931 phy_drivers_unregister(__phy_drivers, __count); \
933 module_exit(phy_module_exit)
935 #define module_phy_driver(__phy_drivers) \
936 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))