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_IS_INTERNAL 0x00000002
62 #define MDIO_DEVICE_IS_PHY 0x80000000
64 /* Interface Mode definitions */
66 PHY_INTERFACE_MODE_NA,
67 PHY_INTERFACE_MODE_INTERNAL,
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_XAUI,
88 /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */
89 PHY_INTERFACE_MODE_10GKR,
90 PHY_INTERFACE_MODE_MAX,
94 * phy_supported_speeds - return all speeds currently supported by a phy device
95 * @phy: The phy device to return supported speeds of.
96 * @speeds: buffer to store supported speeds in.
97 * @size: size of speeds buffer.
99 * Description: Returns the number of supported speeds, and
100 * fills the speeds * buffer with the supported speeds. If speeds buffer is
101 * too small to contain * all currently supported speeds, will return as
102 * many speeds as can fit.
104 unsigned int phy_supported_speeds(struct phy_device *phy,
105 unsigned int *speeds,
109 * It maps 'enum phy_interface_t' found in include/linux/phy.h
110 * into the device tree binding of 'phy-mode', so that Ethernet
111 * device driver can get phy interface from device tree.
113 static inline const char *phy_modes(phy_interface_t interface)
116 case PHY_INTERFACE_MODE_NA:
118 case PHY_INTERFACE_MODE_INTERNAL:
120 case PHY_INTERFACE_MODE_MII:
122 case PHY_INTERFACE_MODE_GMII:
124 case PHY_INTERFACE_MODE_SGMII:
126 case PHY_INTERFACE_MODE_TBI:
128 case PHY_INTERFACE_MODE_REVMII:
130 case PHY_INTERFACE_MODE_RMII:
132 case PHY_INTERFACE_MODE_RGMII:
134 case PHY_INTERFACE_MODE_RGMII_ID:
136 case PHY_INTERFACE_MODE_RGMII_RXID:
138 case PHY_INTERFACE_MODE_RGMII_TXID:
140 case PHY_INTERFACE_MODE_RTBI:
142 case PHY_INTERFACE_MODE_SMII:
144 case PHY_INTERFACE_MODE_XGMII:
146 case PHY_INTERFACE_MODE_MOCA:
148 case PHY_INTERFACE_MODE_QSGMII:
150 case PHY_INTERFACE_MODE_TRGMII:
152 case PHY_INTERFACE_MODE_1000BASEX:
154 case PHY_INTERFACE_MODE_2500BASEX:
156 case PHY_INTERFACE_MODE_RXAUI:
158 case PHY_INTERFACE_MODE_XAUI:
160 case PHY_INTERFACE_MODE_10GKR:
168 #define PHY_INIT_TIMEOUT 100000
169 #define PHY_STATE_TIME 1
170 #define PHY_FORCE_TIMEOUT 10
171 #define PHY_AN_TIMEOUT 10
173 #define PHY_MAX_ADDR 32
175 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */
176 #define PHY_ID_FMT "%s:%02x"
178 #define MII_BUS_ID_SIZE 61
180 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
181 IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */
182 #define MII_ADDR_C45 (1<<30)
188 * The Bus class for PHYs. Devices which provide access to
189 * PHYs should register using this structure
192 struct module *owner;
194 char id[MII_BUS_ID_SIZE];
196 int (*read)(struct mii_bus *bus, int addr, int regnum);
197 int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val);
198 int (*reset)(struct mii_bus *bus);
201 * A lock to ensure that only one thing can read/write
202 * the MDIO bus at a time
204 struct mutex mdio_lock;
206 struct device *parent;
208 MDIOBUS_ALLOCATED = 1,
210 MDIOBUS_UNREGISTERED,
215 /* list of all PHYs on bus */
216 struct mdio_device *mdio_map[PHY_MAX_ADDR];
218 /* PHY addresses to be ignored when probing */
221 /* PHY addresses to ignore the TA/read failure */
222 u32 phy_ignore_ta_mask;
225 * An array of interrupts, each PHY's interrupt at the index
226 * matching its address
228 int irq[PHY_MAX_ADDR];
230 /* GPIO reset pulse width in microseconds */
232 /* RESET GPIO descriptor pointer */
233 struct gpio_desc *reset_gpiod;
235 #define to_mii_bus(d) container_of(d, struct mii_bus, dev)
237 struct mii_bus *mdiobus_alloc_size(size_t);
238 static inline struct mii_bus *mdiobus_alloc(void)
240 return mdiobus_alloc_size(0);
243 int __mdiobus_register(struct mii_bus *bus, struct module *owner);
244 #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
245 void mdiobus_unregister(struct mii_bus *bus);
246 void mdiobus_free(struct mii_bus *bus);
247 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
248 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev)
250 return devm_mdiobus_alloc_size(dev, 0);
253 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus);
254 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
256 #define PHY_INTERRUPT_DISABLED 0x0
257 #define PHY_INTERRUPT_ENABLED 0x80000000
259 /* PHY state machine states:
261 * DOWN: PHY device and driver are not ready for anything. probe
262 * should be called if and only if the PHY is in this state,
263 * given that the PHY device exists.
264 * - PHY driver probe function will, depending on the PHY, set
265 * the state to STARTING or READY
267 * STARTING: PHY device is coming up, and the ethernet driver is
268 * not ready. PHY drivers may set this in the probe function.
269 * If they do, they are responsible for making sure the state is
270 * eventually set to indicate whether the PHY is UP or READY,
271 * depending on the state when the PHY is done starting up.
272 * - PHY driver will set the state to READY
273 * - start will set the state to PENDING
275 * READY: PHY is ready to send and receive packets, but the
276 * controller is not. By default, PHYs which do not implement
277 * probe will be set to this state by phy_probe(). If the PHY
278 * driver knows the PHY is ready, and the PHY state is STARTING,
279 * then it sets this STATE.
280 * - start will set the state to UP
282 * PENDING: PHY device is coming up, but the ethernet driver is
283 * ready. phy_start will set this state if the PHY state is
285 * - PHY driver will set the state to UP when the PHY is ready
287 * UP: The PHY and attached device are ready to do work.
288 * Interrupts should be started here.
289 * - timer moves to AN
291 * AN: The PHY is currently negotiating the link state. Link is
292 * therefore down for now. phy_timer will set this state when it
293 * detects the state is UP. config_aneg will set this state
294 * whenever called with phydev->autoneg set to AUTONEG_ENABLE.
295 * - If autonegotiation finishes, but there's no link, it sets
296 * the state to NOLINK.
297 * - If aneg finishes with link, it sets the state to RUNNING,
298 * and calls adjust_link
299 * - If autonegotiation did not finish after an arbitrary amount
300 * of time, autonegotiation should be tried again if the PHY
301 * supports "magic" autonegotiation (back to AN)
302 * - If it didn't finish, and no magic_aneg, move to FORCING.
304 * NOLINK: PHY is up, but not currently plugged in.
305 * - If the timer notes that the link comes back, we move to RUNNING
306 * - config_aneg moves to AN
307 * - phy_stop moves to HALTED
309 * FORCING: PHY is being configured with forced settings
310 * - if link is up, move to RUNNING
311 * - If link is down, we drop to the next highest setting, and
312 * retry (FORCING) after a timeout
313 * - phy_stop moves to HALTED
315 * RUNNING: PHY is currently up, running, and possibly sending
316 * and/or receiving packets
317 * - timer will set CHANGELINK if we're polling (this ensures the
318 * link state is polled every other cycle of this state machine,
319 * which makes it every other second)
320 * - irq will set CHANGELINK
321 * - config_aneg will set AN
322 * - phy_stop moves to HALTED
324 * CHANGELINK: PHY experienced a change in link state
325 * - timer moves to RUNNING if link
326 * - timer moves to NOLINK if the link is down
327 * - phy_stop moves to HALTED
329 * HALTED: PHY is up, but no polling or interrupts are done. Or
330 * PHY is in an error state.
332 * - phy_start moves to RESUMING
334 * RESUMING: PHY was halted, but now wants to run again.
335 * - If we are forcing, or aneg is done, timer moves to RUNNING
336 * - If aneg is not done, timer moves to AN
337 * - phy_stop moves to HALTED
355 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers
356 * @devices_in_package: Bit vector of devices present.
357 * @device_ids: The device identifer for each present device.
359 struct phy_c45_device_ids {
360 u32 devices_in_package;
364 /* phy_device: An instance of a PHY
366 * drv: Pointer to the driver for this PHY instance
367 * phy_id: UID for this device found during discovery
368 * c45_ids: 802.3-c45 Device Identifers if is_c45.
369 * is_c45: Set to true if this phy uses clause 45 addressing.
370 * is_internal: Set to true if this phy is internal to a MAC.
371 * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc.
372 * has_fixups: Set to true if this phy has fixups/quirks.
373 * suspended: Set to true if this phy has been suspended successfully.
374 * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
375 * state: state of the PHY for management purposes
376 * dev_flags: Device-specific flags used by the PHY driver.
377 * link_timeout: The number of timer firings to wait before the
378 * giving up on the current attempt at acquiring a link
379 * irq: IRQ number of the PHY's interrupt (-1 if none)
380 * phy_timer: The timer for handling the state machine
381 * phy_queue: A work_queue for the phy_mac_interrupt
382 * attached_dev: The attached enet driver's device instance ptr
383 * adjust_link: Callback for the enet controller to respond to
384 * changes in the link state.
386 * speed, duplex, pause, supported, advertising, lp_advertising,
387 * and autoneg are used like in mii_if_info
389 * interrupts currently only supports enabled or disabled,
390 * but could be changed in the future to support enabling
391 * and disabling specific interrupts
393 * Contains some infrastructure for polling and interrupt
394 * handling, as well as handling shifts in PHY hardware state
397 struct mdio_device mdio;
399 /* Information about the PHY type */
400 /* And management functions */
401 struct phy_driver *drv;
405 struct phy_c45_device_ids c45_ids;
408 bool is_pseudo_fixed_link;
413 enum phy_state state;
417 phy_interface_t interface;
420 * forced speed & duplex (no autoneg)
421 * partner speed & duplex & pause (autoneg)
428 /* The most recently read link state */
431 /* Enabled Interrupts */
434 /* Union of PHY and Attached devices' supported modes */
435 /* See mii.h for more info */
440 /* Energy efficient ethernet modes which should be prohibited */
441 u32 eee_broken_modes;
447 #ifdef CONFIG_LED_TRIGGER_PHY
448 struct phy_led_trigger *phy_led_triggers;
449 unsigned int phy_num_led_triggers;
450 struct phy_led_trigger *last_triggered;
454 * Interrupt number for this PHY
455 * -1 means no interrupt
459 /* private data pointer */
460 /* For use by PHYs to maintain extra state */
463 /* Interrupt and Polling infrastructure */
464 struct work_struct phy_queue;
465 struct delayed_work state_queue;
466 atomic_t irq_disable;
470 struct net_device *attached_dev;
475 void (*adjust_link)(struct net_device *dev);
477 #define to_phy_device(d) container_of(to_mdio_device(d), \
478 struct phy_device, mdio)
480 /* struct phy_driver: Driver structure for a particular PHY type
482 * driver_data: static driver data
483 * phy_id: The result of reading the UID registers of this PHY
484 * type, and ANDing them with the phy_id_mask. This driver
485 * only works for PHYs with IDs which match this field
486 * name: The friendly name of this PHY type
487 * phy_id_mask: Defines the important bits of the phy_id
488 * features: A list of features (speed, duplex, etc) supported
490 * flags: A bitfield defining certain other features this PHY
491 * supports (like interrupts)
493 * The drivers must implement config_aneg and read_status. All
494 * other functions are optional. Note that none of these
495 * functions should be called from interrupt time. The goal is
496 * for the bus read/write functions to be able to block when the
497 * bus transaction is happening, and be freed up by an interrupt
498 * (The MPC85xx has this ability, though it is not currently
499 * supported in the driver).
502 struct mdio_driver_common mdiodrv;
505 unsigned int phy_id_mask;
508 const void *driver_data;
511 * Called to issue a PHY software reset
513 int (*soft_reset)(struct phy_device *phydev);
516 * Called to initialize the PHY,
517 * including after a reset
519 int (*config_init)(struct phy_device *phydev);
522 * Called during discovery. Used to set
523 * up device-specific structures, if any
525 int (*probe)(struct phy_device *phydev);
527 /* PHY Power Management */
528 int (*suspend)(struct phy_device *phydev);
529 int (*resume)(struct phy_device *phydev);
532 * Configures the advertisement and resets
533 * autonegotiation if phydev->autoneg is on,
534 * forces the speed to the current settings in phydev
535 * if phydev->autoneg is off
537 int (*config_aneg)(struct phy_device *phydev);
539 /* Determines the auto negotiation result */
540 int (*aneg_done)(struct phy_device *phydev);
542 /* Determines the negotiated speed and duplex */
543 int (*read_status)(struct phy_device *phydev);
545 /* Clears any pending interrupts */
546 int (*ack_interrupt)(struct phy_device *phydev);
548 /* Enables or disables interrupts */
549 int (*config_intr)(struct phy_device *phydev);
552 * Checks if the PHY generated an interrupt.
553 * For multi-PHY devices with shared PHY interrupt pin
555 int (*did_interrupt)(struct phy_device *phydev);
557 /* Clears up any memory if needed */
558 void (*remove)(struct phy_device *phydev);
560 /* Returns true if this is a suitable driver for the given
561 * phydev. If NULL, matching is based on phy_id and
564 int (*match_phy_device)(struct phy_device *phydev);
566 /* Handles ethtool queries for hardware time stamping. */
567 int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti);
569 /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
570 int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
573 * Requests a Rx timestamp for 'skb'. If the skb is accepted,
574 * the phy driver promises to deliver it using netif_rx() as
575 * soon as a timestamp becomes available. One of the
576 * PTP_CLASS_ values is passed in 'type'. The function must
577 * return true if the skb is accepted for delivery.
579 bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
582 * Requests a Tx timestamp for 'skb'. The phy driver promises
583 * to deliver it using skb_complete_tx_timestamp() as soon as a
584 * timestamp becomes available. One of the PTP_CLASS_ values
585 * is passed in 'type'.
587 void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
589 /* Some devices (e.g. qnap TS-119P II) require PHY register changes to
590 * enable Wake on LAN, so set_wol is provided to be called in the
591 * ethernet driver's set_wol function. */
592 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
594 /* See set_wol, but for checking whether Wake on LAN is enabled. */
595 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol);
598 * Called to inform a PHY device driver when the core is about to
599 * change the link state. This callback is supposed to be used as
600 * fixup hook for drivers that need to take action when the link
601 * state changes. Drivers are by no means allowed to mess with the
602 * PHY device structure in their implementations.
604 void (*link_change_notify)(struct phy_device *dev);
607 * Phy specific driver override for reading a MMD register.
608 * This function is optional for PHY specific drivers. When
609 * not provided, the default MMD read function will be used
610 * by phy_read_mmd(), which will use either a direct read for
611 * Clause 45 PHYs or an indirect read for Clause 22 PHYs.
612 * devnum is the MMD device number within the PHY device,
613 * regnum is the register within the selected MMD device.
615 int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum);
618 * Phy specific driver override for writing a MMD register.
619 * This function is optional for PHY specific drivers. When
620 * not provided, the default MMD write function will be used
621 * by phy_write_mmd(), which will use either a direct write for
622 * Clause 45 PHYs, or an indirect write for Clause 22 PHYs.
623 * devnum is the MMD device number within the PHY device,
624 * regnum is the register within the selected MMD device.
625 * val is the value to be written.
627 int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum,
630 /* Get the size and type of the eeprom contained within a plug-in
632 int (*module_info)(struct phy_device *dev,
633 struct ethtool_modinfo *modinfo);
635 /* Get the eeprom information from the plug-in module */
636 int (*module_eeprom)(struct phy_device *dev,
637 struct ethtool_eeprom *ee, u8 *data);
639 /* Get statistics from the phy using ethtool */
640 int (*get_sset_count)(struct phy_device *dev);
641 void (*get_strings)(struct phy_device *dev, u8 *data);
642 void (*get_stats)(struct phy_device *dev,
643 struct ethtool_stats *stats, u64 *data);
645 /* Get and Set PHY tunables */
646 int (*get_tunable)(struct phy_device *dev,
647 struct ethtool_tunable *tuna, void *data);
648 int (*set_tunable)(struct phy_device *dev,
649 struct ethtool_tunable *tuna,
652 #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
653 struct phy_driver, mdiodrv)
655 #define PHY_ANY_ID "MATCH ANY PHY"
656 #define PHY_ANY_UID 0xffffffff
658 /* A Structure for boards to register fixups with the PHY Lib */
660 struct list_head list;
661 char bus_id[MII_BUS_ID_SIZE + 3];
664 int (*run)(struct phy_device *phydev);
668 * phy_read_mmd - Convenience function for reading a register
669 * from an MMD on a given PHY.
670 * @phydev: The phy_device struct
671 * @devad: The MMD to read from
672 * @regnum: The register on the MMD to read
674 * Same rules as for phy_read();
676 int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
679 * phy_read - Convenience function for reading a given PHY register
680 * @phydev: the phy_device struct
681 * @regnum: register number to read
683 * NOTE: MUST NOT be called from interrupt context,
684 * because the bus read/write functions may wait for an interrupt
685 * to conclude the operation.
687 static inline int phy_read(struct phy_device *phydev, u32 regnum)
689 return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
693 * phy_write - Convenience function for writing a given PHY register
694 * @phydev: the phy_device struct
695 * @regnum: register number to write
696 * @val: value to write to @regnum
698 * NOTE: MUST NOT be called from interrupt context,
699 * because the bus read/write functions may wait for an interrupt
700 * to conclude the operation.
702 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
704 return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
708 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
709 * @phydev: the phy_device struct
711 * NOTE: must be kept in sync with addition/removal of PHY_POLL and
712 * PHY_IGNORE_INTERRUPT
714 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
716 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
720 * phy_is_internal - Convenience function for testing if a PHY is internal
721 * @phydev: the phy_device struct
723 static inline bool phy_is_internal(struct phy_device *phydev)
725 return phydev->is_internal;
729 * phy_interface_mode_is_rgmii - Convenience function for testing if a
730 * PHY interface mode is RGMII (all variants)
731 * @mode: the phy_interface_t enum
733 static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
735 return mode >= PHY_INTERFACE_MODE_RGMII &&
736 mode <= PHY_INTERFACE_MODE_RGMII_TXID;
740 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
741 * is RGMII (all variants)
742 * @phydev: the phy_device struct
744 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
746 return phy_interface_mode_is_rgmii(phydev->interface);
750 * phy_is_pseudo_fixed_link - Convenience function for testing if this
751 * PHY is the CPU port facing side of an Ethernet switch, or similar.
752 * @phydev: the phy_device struct
754 static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
756 return phydev->is_pseudo_fixed_link;
760 * phy_write_mmd - Convenience function for writing a register
761 * on an MMD on a given PHY.
762 * @phydev: The phy_device struct
763 * @devad: The MMD to read from
764 * @regnum: The register on the MMD to read
765 * @val: value to write to @regnum
767 * Same rules as for phy_write();
769 int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
771 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
773 struct phy_c45_device_ids *c45_ids);
774 #if IS_ENABLED(CONFIG_PHYLIB)
775 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
776 int phy_device_register(struct phy_device *phy);
777 void phy_device_free(struct phy_device *phydev);
780 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
785 static inline int phy_device_register(struct phy_device *phy)
790 static inline void phy_device_free(struct phy_device *phydev) { }
791 #endif /* CONFIG_PHYLIB */
792 void phy_device_remove(struct phy_device *phydev);
793 int phy_init_hw(struct phy_device *phydev);
794 int phy_suspend(struct phy_device *phydev);
795 int phy_resume(struct phy_device *phydev);
796 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
797 phy_interface_t interface);
798 struct phy_device *phy_find_first(struct mii_bus *bus);
799 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
800 u32 flags, phy_interface_t interface);
801 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
802 void (*handler)(struct net_device *),
803 phy_interface_t interface);
804 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
805 void (*handler)(struct net_device *),
806 phy_interface_t interface);
807 void phy_disconnect(struct phy_device *phydev);
808 void phy_detach(struct phy_device *phydev);
809 void phy_start(struct phy_device *phydev);
810 void phy_stop(struct phy_device *phydev);
811 int phy_start_aneg(struct phy_device *phydev);
812 int phy_aneg_done(struct phy_device *phydev);
814 int phy_stop_interrupts(struct phy_device *phydev);
815 int phy_restart_aneg(struct phy_device *phydev);
817 static inline int phy_read_status(struct phy_device *phydev)
822 return phydev->drv->read_status(phydev);
825 #define phydev_err(_phydev, format, args...) \
826 dev_err(&_phydev->mdio.dev, format, ##args)
828 #define phydev_dbg(_phydev, format, args...) \
829 dev_dbg(&_phydev->mdio.dev, format, ##args);
831 static inline const char *phydev_name(const struct phy_device *phydev)
833 return dev_name(&phydev->mdio.dev);
836 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
838 void phy_attached_info(struct phy_device *phydev);
841 int genphy_config_init(struct phy_device *phydev);
842 int genphy_setup_forced(struct phy_device *phydev);
843 int genphy_restart_aneg(struct phy_device *phydev);
844 int genphy_config_aneg(struct phy_device *phydev);
845 int genphy_aneg_done(struct phy_device *phydev);
846 int genphy_update_link(struct phy_device *phydev);
847 int genphy_read_status(struct phy_device *phydev);
848 int genphy_suspend(struct phy_device *phydev);
849 int genphy_resume(struct phy_device *phydev);
850 int genphy_soft_reset(struct phy_device *phydev);
851 static inline int genphy_no_soft_reset(struct phy_device *phydev)
857 int genphy_c45_restart_aneg(struct phy_device *phydev);
858 int genphy_c45_aneg_done(struct phy_device *phydev);
859 int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask);
860 int genphy_c45_read_lpa(struct phy_device *phydev);
861 int genphy_c45_read_pma(struct phy_device *phydev);
862 int genphy_c45_pma_setup_forced(struct phy_device *phydev);
863 int genphy_c45_an_disable_aneg(struct phy_device *phydev);
865 void phy_driver_unregister(struct phy_driver *drv);
866 void phy_drivers_unregister(struct phy_driver *drv, int n);
867 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
868 int phy_drivers_register(struct phy_driver *new_driver, int n,
869 struct module *owner);
870 void phy_state_machine(struct work_struct *work);
871 void phy_change(struct phy_device *phydev);
872 void phy_change_work(struct work_struct *work);
873 void phy_mac_interrupt(struct phy_device *phydev, int new_link);
874 void phy_start_machine(struct phy_device *phydev);
875 void phy_stop_machine(struct phy_device *phydev);
876 void phy_trigger_machine(struct phy_device *phydev, bool sync);
877 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
878 void phy_ethtool_ksettings_get(struct phy_device *phydev,
879 struct ethtool_link_ksettings *cmd);
880 int phy_ethtool_ksettings_set(struct phy_device *phydev,
881 const struct ethtool_link_ksettings *cmd);
882 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
883 int phy_start_interrupts(struct phy_device *phydev);
884 void phy_print_status(struct phy_device *phydev);
885 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
887 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
888 int (*run)(struct phy_device *));
889 int phy_register_fixup_for_id(const char *bus_id,
890 int (*run)(struct phy_device *));
891 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
892 int (*run)(struct phy_device *));
894 int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask);
895 int phy_unregister_fixup_for_id(const char *bus_id);
896 int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask);
898 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable);
899 int phy_get_eee_err(struct phy_device *phydev);
900 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data);
901 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data);
902 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol);
903 void phy_ethtool_get_wol(struct phy_device *phydev,
904 struct ethtool_wolinfo *wol);
905 int phy_ethtool_get_link_ksettings(struct net_device *ndev,
906 struct ethtool_link_ksettings *cmd);
907 int phy_ethtool_set_link_ksettings(struct net_device *ndev,
908 const struct ethtool_link_ksettings *cmd);
909 int phy_ethtool_nway_reset(struct net_device *ndev);
911 #if IS_ENABLED(CONFIG_PHYLIB)
912 int __init mdio_bus_init(void);
913 void mdio_bus_exit(void);
916 extern struct bus_type mdio_bus_type;
918 struct mdio_board_info {
920 char modalias[MDIO_NAME_SIZE];
922 const void *platform_data;
925 #if IS_ENABLED(CONFIG_MDIO_DEVICE)
926 int mdiobus_register_board_info(const struct mdio_board_info *info,
929 static inline int mdiobus_register_board_info(const struct mdio_board_info *i,
938 * module_phy_driver() - Helper macro for registering PHY drivers
939 * @__phy_drivers: array of PHY drivers to register
941 * Helper macro for PHY drivers which do not do anything special in module
942 * init/exit. Each module may only use this macro once, and calling it
943 * replaces module_init() and module_exit().
945 #define phy_module_driver(__phy_drivers, __count) \
946 static int __init phy_module_init(void) \
948 return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \
950 module_init(phy_module_init); \
951 static void __exit phy_module_exit(void) \
953 phy_drivers_unregister(__phy_drivers, __count); \
955 module_exit(phy_module_exit)
957 #define module_phy_driver(__phy_drivers) \
958 phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))