1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
4 * Copyright 2006-2009 Solarflare Communications Inc.
6 #ifndef __LINUX_MDIO_H__
7 #define __LINUX_MDIO_H__
9 #include <uapi/linux/mdio.h>
10 #include <linux/bitfield.h>
11 #include <linux/mod_devicetable.h>
17 /* Multiple levels of nesting are possible. However typically this is
18 * limited to nested DSA like layer, a MUX layer, and the normal
19 * user. Instead of trying to handle the general case, just define
22 enum mdio_mutex_lock_class {
32 char modalias[MDIO_NAME_SIZE];
34 int (*bus_match)(struct device *dev, struct device_driver *drv);
35 void (*device_free)(struct mdio_device *mdiodev);
36 void (*device_remove)(struct mdio_device *mdiodev);
38 /* Bus address of the MDIO device (0-31) */
42 struct gpio_desc *reset_gpio;
43 struct reset_control *reset_ctrl;
44 unsigned int reset_assert_delay;
45 unsigned int reset_deassert_delay;
48 static inline struct mdio_device *to_mdio_device(const struct device *dev)
50 return container_of(dev, struct mdio_device, dev);
53 /* struct mdio_driver_common: Common to all MDIO drivers */
54 struct mdio_driver_common {
55 struct device_driver driver;
58 #define MDIO_DEVICE_FLAG_PHY 1
60 static inline struct mdio_driver_common *
61 to_mdio_common_driver(const struct device_driver *driver)
63 return container_of(driver, struct mdio_driver_common, driver);
66 /* struct mdio_driver: Generic MDIO driver */
68 struct mdio_driver_common mdiodrv;
71 * Called during discovery. Used to set
72 * up device-specific structures, if any
74 int (*probe)(struct mdio_device *mdiodev);
76 /* Clears up any memory if needed */
77 void (*remove)(struct mdio_device *mdiodev);
79 /* Quiesces the device on system shutdown, turns off interrupts etc */
80 void (*shutdown)(struct mdio_device *mdiodev);
83 static inline struct mdio_driver *
84 to_mdio_driver(const struct device_driver *driver)
86 return container_of(to_mdio_common_driver(driver), struct mdio_driver,
90 /* device driver data */
91 static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
93 dev_set_drvdata(&mdio->dev, data);
96 static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
98 return dev_get_drvdata(&mdio->dev);
101 void mdio_device_free(struct mdio_device *mdiodev);
102 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
103 int mdio_device_register(struct mdio_device *mdiodev);
104 void mdio_device_remove(struct mdio_device *mdiodev);
105 void mdio_device_reset(struct mdio_device *mdiodev, int value);
106 int mdio_driver_register(struct mdio_driver *drv);
107 void mdio_driver_unregister(struct mdio_driver *drv);
108 int mdio_device_bus_match(struct device *dev, struct device_driver *drv);
110 static inline void mdio_device_get(struct mdio_device *mdiodev)
112 get_device(&mdiodev->dev);
115 static inline void mdio_device_put(struct mdio_device *mdiodev)
117 mdio_device_free(mdiodev);
120 static inline bool mdio_phy_id_is_c45(int phy_id)
122 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
125 static inline __u16 mdio_phy_id_prtad(int phy_id)
127 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
130 static inline __u16 mdio_phy_id_devad(int phy_id)
132 return phy_id & MDIO_PHY_ID_DEVAD;
136 * struct mdio_if_info - Ethernet controller MDIO interface
137 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
138 * @mmds: Mask of MMDs expected to be present in the PHY. This must be
139 * non-zero unless @prtad = %MDIO_PRTAD_NONE.
140 * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then
141 * MII register access will be passed through with @devad =
142 * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to
143 * commonly used clause 22 registers will be translated into
144 * clause 45 registers.
145 * @dev: Net device structure
146 * @mdio_read: Register read function; returns value or negative error code
147 * @mdio_write: Register write function; returns 0 or negative error code
149 struct mdio_if_info {
152 unsigned mode_support;
154 struct net_device *dev;
155 int (*mdio_read)(struct net_device *dev, int prtad, int devad,
157 int (*mdio_write)(struct net_device *dev, int prtad, int devad,
161 #define MDIO_PRTAD_NONE (-1)
162 #define MDIO_DEVAD_NONE (-1)
163 #define MDIO_SUPPORTS_C22 1
164 #define MDIO_SUPPORTS_C45 2
165 #define MDIO_EMULATE_C22 4
168 struct ethtool_pauseparam;
169 extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
170 extern int mdio_set_flag(const struct mdio_if_info *mdio,
171 int prtad, int devad, u16 addr, int mask,
173 extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
174 extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
175 extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
176 struct ethtool_cmd *ecmd,
177 u32 npage_adv, u32 npage_lpa);
179 mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
180 struct ethtool_link_ksettings *cmd,
181 u32 npage_adv, u32 npage_lpa);
184 * mdio45_ethtool_gset - get settings for ETHTOOL_GSET
185 * @mdio: MDIO interface
186 * @ecmd: Ethtool request structure
188 * Since the CSRs for auto-negotiation using next pages are not fully
189 * standardised, this function does not attempt to decode them. Use
190 * mdio45_ethtool_gset_npage() to specify advertisement bits from next
193 static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
194 struct ethtool_cmd *ecmd)
196 mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
200 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
201 * @mdio: MDIO interface
202 * @cmd: Ethtool request structure
204 * Since the CSRs for auto-negotiation using next pages are not fully
205 * standardised, this function does not attempt to decode them. Use
206 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
210 mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
211 struct ethtool_link_ksettings *cmd)
213 mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
216 extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
217 struct mii_ioctl_data *mii_data, int cmd);
220 * mmd_eee_cap_to_ethtool_sup_t
221 * @eee_cap: value of the MMD EEE Capability register
223 * A small helper function that translates MMD EEE Capability (3.20) bits
224 * to ethtool supported settings.
226 static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
230 if (eee_cap & MDIO_EEE_100TX)
231 supported |= SUPPORTED_100baseT_Full;
232 if (eee_cap & MDIO_EEE_1000T)
233 supported |= SUPPORTED_1000baseT_Full;
234 if (eee_cap & MDIO_EEE_10GT)
235 supported |= SUPPORTED_10000baseT_Full;
236 if (eee_cap & MDIO_EEE_1000KX)
237 supported |= SUPPORTED_1000baseKX_Full;
238 if (eee_cap & MDIO_EEE_10GKX4)
239 supported |= SUPPORTED_10000baseKX4_Full;
240 if (eee_cap & MDIO_EEE_10GKR)
241 supported |= SUPPORTED_10000baseKR_Full;
247 * mmd_eee_adv_to_ethtool_adv_t
248 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
250 * A small helper function that translates the MMD EEE Advertisment (7.60)
251 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
254 static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
258 if (eee_adv & MDIO_EEE_100TX)
259 adv |= ADVERTISED_100baseT_Full;
260 if (eee_adv & MDIO_EEE_1000T)
261 adv |= ADVERTISED_1000baseT_Full;
262 if (eee_adv & MDIO_EEE_10GT)
263 adv |= ADVERTISED_10000baseT_Full;
264 if (eee_adv & MDIO_EEE_1000KX)
265 adv |= ADVERTISED_1000baseKX_Full;
266 if (eee_adv & MDIO_EEE_10GKX4)
267 adv |= ADVERTISED_10000baseKX4_Full;
268 if (eee_adv & MDIO_EEE_10GKR)
269 adv |= ADVERTISED_10000baseKR_Full;
275 * ethtool_adv_to_mmd_eee_adv_t
276 * @adv: the ethtool advertisement settings
278 * A small helper function that translates ethtool advertisement settings
279 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
280 * MMD EEE Link Partner Ability (7.61) registers.
282 static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
286 if (adv & ADVERTISED_100baseT_Full)
287 reg |= MDIO_EEE_100TX;
288 if (adv & ADVERTISED_1000baseT_Full)
289 reg |= MDIO_EEE_1000T;
290 if (adv & ADVERTISED_10000baseT_Full)
291 reg |= MDIO_EEE_10GT;
292 if (adv & ADVERTISED_1000baseKX_Full)
293 reg |= MDIO_EEE_1000KX;
294 if (adv & ADVERTISED_10000baseKX4_Full)
295 reg |= MDIO_EEE_10GKX4;
296 if (adv & ADVERTISED_10000baseKR_Full)
297 reg |= MDIO_EEE_10GKR;
303 * linkmode_adv_to_mii_10gbt_adv_t
304 * @advertising: the linkmode advertisement settings
306 * A small helper function that translates linkmode advertisement
307 * settings to phy autonegotiation advertisements for the C45
308 * 10GBASE-T AN CONTROL (7.32) register.
310 static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
314 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
316 result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
317 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
319 result |= MDIO_AN_10GBT_CTRL_ADV5G;
320 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
322 result |= MDIO_AN_10GBT_CTRL_ADV10G;
328 * mii_10gbt_stat_mod_linkmode_lpa_t
329 * @advertising: target the linkmode advertisement settings
330 * @lpa: value of the C45 10GBASE-T AN STATUS register
332 * A small helper function that translates C45 10GBASE-T AN STATUS register bits
333 * to linkmode advertisement settings. Other bits in advertising aren't changed.
335 static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
338 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
339 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
340 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
341 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
342 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
343 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
347 * mii_t1_adv_l_mod_linkmode_t
348 * @advertising: target the linkmode advertisement settings
349 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register
351 * A small helper function that translates BASE-T1 Autonegotiation
352 * Advertisement [15:0] Register bits to linkmode advertisement settings.
353 * Other bits in advertising aren't changed.
355 static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa)
357 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising,
358 lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP);
359 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising,
360 lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM);
364 * mii_t1_adv_m_mod_linkmode_t
365 * @advertising: target the linkmode advertisement settings
366 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register
368 * A small helper function that translates BASE-T1 Autonegotiation
369 * Advertisement [31:16] Register bits to linkmode advertisement settings.
370 * Other bits in advertising aren't changed.
372 static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa)
374 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
375 advertising, lpa & MDIO_AN_T1_ADV_M_B10L);
379 * linkmode_adv_to_mii_t1_adv_l_t
380 * @advertising: the linkmode advertisement settings
382 * A small helper function that translates linkmode advertisement
383 * settings to phy autonegotiation advertisements for the
384 * BASE-T1 Autonegotiation Advertisement [15:0] Register.
386 static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising)
390 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising))
391 result |= MDIO_AN_T1_ADV_L_PAUSE_CAP;
392 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising))
393 result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM;
399 * linkmode_adv_to_mii_t1_adv_m_t
400 * @advertising: the linkmode advertisement settings
402 * A small helper function that translates linkmode advertisement
403 * settings to phy autonegotiation advertisements for the
404 * BASE-T1 Autonegotiation Advertisement [31:16] Register.
406 static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising)
410 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising))
411 result |= MDIO_AN_T1_ADV_M_B10L;
417 * mii_eee_cap1_mod_linkmode_t()
418 * @adv: target the linkmode advertisement settings
419 * @val: register value
421 * A function that translates value of following registers to the linkmode:
422 * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20)
423 * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60)
424 * IEEE 802.3-2018 45.2.7.14 "EEE link partner ability 1" register (7.61)
426 static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
428 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
429 adv, val & MDIO_EEE_100TX);
430 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
431 adv, val & MDIO_EEE_1000T);
432 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
433 adv, val & MDIO_EEE_10GT);
434 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
435 adv, val & MDIO_EEE_1000KX);
436 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
437 adv, val & MDIO_EEE_10GKX4);
438 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
439 adv, val & MDIO_EEE_10GKR);
443 * linkmode_to_mii_eee_cap1_t()
444 * @adv: the linkmode advertisement settings
446 * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13
447 * "EEE advertisement 1" register (7.60)
449 static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
453 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv))
454 result |= MDIO_EEE_100TX;
455 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv))
456 result |= MDIO_EEE_1000T;
457 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv))
458 result |= MDIO_EEE_10GT;
459 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv))
460 result |= MDIO_EEE_1000KX;
461 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv))
462 result |= MDIO_EEE_10GKX4;
463 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv))
464 result |= MDIO_EEE_10GKR;
470 * mii_10base_t1_adv_mod_linkmode_t()
471 * @adv: linkmode advertisement settings
472 * @val: register value
474 * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status"
475 * register (7.527) value to the linkmode.
477 static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val)
479 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
480 adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L);
484 * linkmode_adv_to_mii_10base_t1_t()
485 * @adv: linkmode advertisement settings
487 * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25
488 * "10BASE-T1 AN control" register (7.526) value.
490 static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv)
494 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv))
495 result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L;
501 * mii_c73_mod_linkmode - convert a Clause 73 advertisement to linkmodes
502 * @adv: linkmode advertisement setting
503 * @lpa: array of three u16s containing the advertisement
505 * Convert an IEEE 802.3 Clause 73 advertisement to ethtool link modes.
507 static inline void mii_c73_mod_linkmode(unsigned long *adv, u16 *lpa)
509 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT,
510 adv, lpa[0] & MDIO_AN_C73_0_PAUSE);
511 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
512 adv, lpa[0] & MDIO_AN_C73_0_ASM_DIR);
513 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
514 adv, lpa[1] & MDIO_AN_C73_1_1000BASE_KX);
515 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
516 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KX4);
517 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
518 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_KR4);
519 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
520 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_CR4);
521 /* 100GBASE_CR10 and 100GBASE_KP4 not implemented */
522 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
523 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_KR4);
524 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
525 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_CR4);
526 /* 25GBASE_R_S not implemented */
527 /* The 25GBASE_R bit can be used for 25Gbase KR or CR modes */
528 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
529 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
530 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
531 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
532 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
533 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KR);
534 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
535 adv, lpa[2] & MDIO_AN_C73_2_2500BASE_KX);
536 /* 5GBASE_KR not implemented */
539 int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
540 int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
541 int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
543 int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
546 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
547 int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
548 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
549 int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
550 int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
552 int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
554 int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
555 int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
556 int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad,
558 int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
560 int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
562 int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad,
563 u32 regnum, u16 val);
564 int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum,
567 int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad,
568 u32 regnum, u16 mask, u16 set);
570 static inline int __mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
572 return __mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
575 static inline int __mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
578 return __mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
581 static inline int __mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
584 return __mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
587 static inline int __mdiodev_modify_changed(struct mdio_device *mdiodev,
588 u32 regnum, u16 mask, u16 set)
590 return __mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
594 static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
596 return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
599 static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
602 return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
605 static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
608 return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
611 static inline int mdiodev_modify_changed(struct mdio_device *mdiodev,
612 u32 regnum, u16 mask, u16 set)
614 return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
618 static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad,
619 u32 regnum, u16 mask, u16 set)
621 return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum,
625 static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev,
626 int devad, u32 regnum, u16 mask,
629 return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad,
633 static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad,
636 return mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum);
639 static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad,
642 return mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum,
646 int mdiobus_register_device(struct mdio_device *mdiodev);
647 int mdiobus_unregister_device(struct mdio_device *mdiodev);
648 bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
649 struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);
652 * mdio_module_driver() - Helper macro for registering mdio drivers
653 * @_mdio_driver: driver to register
655 * Helper macro for MDIO drivers which do not do anything special in module
656 * init/exit. Each module may only use this macro once, and calling it
657 * replaces module_init() and module_exit().
659 #define mdio_module_driver(_mdio_driver) \
660 static int __init mdio_module_init(void) \
662 return mdio_driver_register(&_mdio_driver); \
664 module_init(mdio_module_init); \
665 static void __exit mdio_module_exit(void) \
667 mdio_driver_unregister(&_mdio_driver); \
669 module_exit(mdio_module_exit)
671 #endif /* __LINUX_MDIO_H__ */