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Merge tag 'fbdev-for-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
[linux-block.git] / include / linux / mdio.h
CommitLineData
d2912cb1 1/* SPDX-License-Identifier: GPL-2.0-only */
52c94dfa
BH		 2/*
3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
4 * Copyright 2006-2009 Solarflare Communications Inc.
52c94dfa 5 */
52c94dfa
BH		 6#ifndef __LINUX_MDIO_H__
7#define __LINUX_MDIO_H__
8
607ca46e 9#include <uapi/linux/mdio.h>
c6af53f0 10#include <linux/bitfield.h>
648ea013 11#include <linux/mod_devicetable.h>
52c94dfa 12
bafbdd52 13struct gpio_desc;
bac83c65 14struct mii_bus;
33374098 15struct reset_control;
9c717758 16
9a6f2b01
AL		 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
20 * these cases.
21 */
22enum mdio_mutex_lock_class {
23 MDIO_MUTEX_NORMAL,
24 MDIO_MUTEX_MUX,
25 MDIO_MUTEX_NESTED,
26};
27
e5a03bfd
AL		 28struct mdio_device {
29 struct device dev;
a9049e0c 30
e5a03bfd 31 struct mii_bus *bus;
648ea013 32 char modalias[MDIO_NAME_SIZE];
711fdba3 33
e76a4957 34 int (*bus_match)(struct device *dev, struct device_driver *drv);
711fdba3
AL		 35 void (*device_free)(struct mdio_device *mdiodev);
36 void (*device_remove)(struct mdio_device *mdiodev);
37
e5a03bfd
AL		 38 /* Bus address of the MDIO device (0-31) */
39 int addr;
7f854420 40 int flags;
6110ed2d 41 struct gpio_desc *reset_gpio;
71dd6c0d 42 struct reset_control *reset_ctrl;
04f629f7
RL		 43 unsigned int reset_assert_delay;
44 unsigned int reset_deassert_delay;
e5a03bfd 45};
7eab14de
AL		 46
47static inline struct mdio_device *to_mdio_device(const struct device *dev)
48{
49 return container_of(dev, struct mdio_device, dev);
50}
e5a03bfd 51
a9049e0c
AL		 52/* struct mdio_driver_common: Common to all MDIO drivers */
53struct mdio_driver_common {
54 struct device_driver driver;
55 int flags;
56};
7f854420 57#define MDIO_DEVICE_FLAG_PHY 1
7eab14de
AL		 58
59static inline struct mdio_driver_common *
60to_mdio_common_driver(const struct device_driver *driver)
61{
62 return container_of(driver, struct mdio_driver_common, driver);
63}
a9049e0c
AL		 64
65/* struct mdio_driver: Generic MDIO driver */
66struct mdio_driver {
67 struct mdio_driver_common mdiodrv;
68
69 /*
70 * Called during discovery. Used to set
71 * up device-specific structures, if any
72 */
73 int (*probe)(struct mdio_device *mdiodev);
74
75 /* Clears up any memory if needed */
76 void (*remove)(struct mdio_device *mdiodev);
cf957997
VO		 77
78 /* Quiesces the device on system shutdown, turns off interrupts etc */
79 void (*shutdown)(struct mdio_device *mdiodev);
a9049e0c 80};
7eab14de
AL		 81
82static inline struct mdio_driver *
83to_mdio_driver(const struct device_driver *driver)
84{
85 return container_of(to_mdio_common_driver(driver), struct mdio_driver,
86 mdiodrv);
87}
a9049e0c 88
36b1a2fc
HK		 89/* device driver data */
90static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
91{
92 dev_set_drvdata(&mdio->dev, data);
93}
94
95static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
96{
97 return dev_get_drvdata(&mdio->dev);
98}
99
a9049e0c
AL		 100void mdio_device_free(struct mdio_device *mdiodev);
101struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
102int mdio_device_register(struct mdio_device *mdiodev);
103void mdio_device_remove(struct mdio_device *mdiodev);
bafbdd52 104void mdio_device_reset(struct mdio_device *mdiodev, int value);
a9049e0c
AL		 105int mdio_driver_register(struct mdio_driver *drv);
106void mdio_driver_unregister(struct mdio_driver *drv);
648ea013 107int mdio_device_bus_match(struct device *dev, struct device_driver *drv);
7f854420 108
52c94dfa
BH		 109static inline bool mdio_phy_id_is_c45(int phy_id)
110{
111 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
112}
113
114static inline __u16 mdio_phy_id_prtad(int phy_id)
115{
116 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
117}
118
119static inline __u16 mdio_phy_id_devad(int phy_id)
120{
121 return phy_id & MDIO_PHY_ID_DEVAD;
122}
123
1b1c2e95
BH		 124/**
125 * struct mdio_if_info - Ethernet controller MDIO interface
126 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
127 * @mmds: Mask of MMDs expected to be present in the PHY. This must be
128 * non-zero unless @prtad = %MDIO_PRTAD_NONE.
129 * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then
130 * MII register access will be passed through with @devad =
131 * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to
132 * commonly used clause 22 registers will be translated into
133 * clause 45 registers.
134 * @dev: Net device structure
135 * @mdio_read: Register read function; returns value or negative error code
136 * @mdio_write: Register write function; returns 0 or negative error code
137 */
138struct mdio_if_info {
139 int prtad;
23428e6b 140 u32 mmds;
1b1c2e95
BH		 141 unsigned mode_support;
142
143 struct net_device *dev;
144 int (*mdio_read)(struct net_device *dev, int prtad, int devad,
145 u16 addr);
146 int (*mdio_write)(struct net_device *dev, int prtad, int devad,
147 u16 addr, u16 val);
148};
149
150#define MDIO_PRTAD_NONE (-1)
151#define MDIO_DEVAD_NONE (-1)
9c717758
BH		 152#define MDIO_SUPPORTS_C22 1
153#define MDIO_SUPPORTS_C45 2
1b1c2e95
BH		 154#define MDIO_EMULATE_C22 4
155
156struct ethtool_cmd;
157struct ethtool_pauseparam;
158extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
159extern int mdio_set_flag(const struct mdio_if_info *mdio,
160 int prtad, int devad, u16 addr, int mask,
161 bool sense);
162extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
163extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
164extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
165 struct ethtool_cmd *ecmd,
166 u32 npage_adv, u32 npage_lpa);
8e4881aa
PR		 167extern void
168mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
169 struct ethtool_link_ksettings *cmd,
170 u32 npage_adv, u32 npage_lpa);
1b1c2e95
BH		 171
172/**
173 * mdio45_ethtool_gset - get settings for ETHTOOL_GSET
174 * @mdio: MDIO interface
175 * @ecmd: Ethtool request structure
176 *
177 * Since the CSRs for auto-negotiation using next pages are not fully
178 * standardised, this function does not attempt to decode them. Use
179 * mdio45_ethtool_gset_npage() to specify advertisement bits from next
180 * pages.
181 */
182static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
183 struct ethtool_cmd *ecmd)
184{
185 mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
186}
187
8e4881aa
PR		 188/**
189 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
190 * @mdio: MDIO interface
191 * @cmd: Ethtool request structure
192 *
193 * Since the CSRs for auto-negotiation using next pages are not fully
194 * standardised, this function does not attempt to decode them. Use
195 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
196 * from next pages.
197 */
198static inline void
199mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
200 struct ethtool_link_ksettings *cmd)
201{
202 mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
203}
204
1b1c2e95
BH		 205extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
206 struct mii_ioctl_data *mii_data, int cmd);
207
b32607dd
AB		 208/**
209 * mmd_eee_cap_to_ethtool_sup_t
210 * @eee_cap: value of the MMD EEE Capability register
211 *
212 * A small helper function that translates MMD EEE Capability (3.20) bits
213 * to ethtool supported settings.
214 */
215static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
216{
217 u32 supported = 0;
218
219 if (eee_cap & MDIO_EEE_100TX)
220 supported |= SUPPORTED_100baseT_Full;
221 if (eee_cap & MDIO_EEE_1000T)
222 supported |= SUPPORTED_1000baseT_Full;
223 if (eee_cap & MDIO_EEE_10GT)
224 supported |= SUPPORTED_10000baseT_Full;
225 if (eee_cap & MDIO_EEE_1000KX)
226 supported |= SUPPORTED_1000baseKX_Full;
227 if (eee_cap & MDIO_EEE_10GKX4)
228 supported |= SUPPORTED_10000baseKX4_Full;
229 if (eee_cap & MDIO_EEE_10GKR)
230 supported |= SUPPORTED_10000baseKR_Full;
231
232 return supported;
233}
234
235/**
236 * mmd_eee_adv_to_ethtool_adv_t
237 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
238 *
239 * A small helper function that translates the MMD EEE Advertisment (7.60)
240 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
241 * settings.
242 */
243static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
244{
245 u32 adv = 0;
246
247 if (eee_adv & MDIO_EEE_100TX)
248 adv |= ADVERTISED_100baseT_Full;
249 if (eee_adv & MDIO_EEE_1000T)
250 adv |= ADVERTISED_1000baseT_Full;
251 if (eee_adv & MDIO_EEE_10GT)
252 adv |= ADVERTISED_10000baseT_Full;
253 if (eee_adv & MDIO_EEE_1000KX)
254 adv |= ADVERTISED_1000baseKX_Full;
255 if (eee_adv & MDIO_EEE_10GKX4)
256 adv |= ADVERTISED_10000baseKX4_Full;
257 if (eee_adv & MDIO_EEE_10GKR)
258 adv |= ADVERTISED_10000baseKR_Full;
259
260 return adv;
261}
262
263/**
264 * ethtool_adv_to_mmd_eee_adv_t
265 * @adv: the ethtool advertisement settings
266 *
267 * A small helper function that translates ethtool advertisement settings
268 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
269 * MMD EEE Link Partner Ability (7.61) registers.
270 */
271static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
272{
273 u16 reg = 0;
274
275 if (adv & ADVERTISED_100baseT_Full)
276 reg |= MDIO_EEE_100TX;
277 if (adv & ADVERTISED_1000baseT_Full)
278 reg |= MDIO_EEE_1000T;
279 if (adv & ADVERTISED_10000baseT_Full)
280 reg |= MDIO_EEE_10GT;
281 if (adv & ADVERTISED_1000baseKX_Full)
282 reg |= MDIO_EEE_1000KX;
283 if (adv & ADVERTISED_10000baseKX4_Full)
284 reg |= MDIO_EEE_10GKX4;
285 if (adv & ADVERTISED_10000baseKR_Full)
286 reg |= MDIO_EEE_10GKR;
287
288 return reg;
289}
290
744e458a
HK		 291/**
292 * linkmode_adv_to_mii_10gbt_adv_t
293 * @advertising: the linkmode advertisement settings
294 *
295 * A small helper function that translates linkmode advertisement
296 * settings to phy autonegotiation advertisements for the C45
297 * 10GBASE-T AN CONTROL (7.32) register.
298 */
299static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
300{
301 u32 result = 0;
302
303 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
304 advertising))
305 result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
306 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
307 advertising))
308 result |= MDIO_AN_10GBT_CTRL_ADV5G;
309 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
310 advertising))
311 result |= MDIO_AN_10GBT_CTRL_ADV10G;
312
313 return result;
314}
315
9004a14c
HK		 316/**
317 * mii_10gbt_stat_mod_linkmode_lpa_t
318 * @advertising: target the linkmode advertisement settings
39097ab6 319 * @lpa: value of the C45 10GBASE-T AN STATUS register
9004a14c
HK		 320 *
321 * A small helper function that translates C45 10GBASE-T AN STATUS register bits
322 * to linkmode advertisement settings. Other bits in advertising aren't changed.
323 */
324static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
325 u32 lpa)
326{
327 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
328 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
329 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
330 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
331 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
332 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
333}
334
3da8ffd8
AT		 335/**
336 * mii_t1_adv_l_mod_linkmode_t
337 * @advertising: target the linkmode advertisement settings
338 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register
339 *
340 * A small helper function that translates BASE-T1 Autonegotiation
341 * Advertisement [15:0] Register bits to linkmode advertisement settings.
342 * Other bits in advertising aren't changed.
343 */
344static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa)
345{
346 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising,
347 lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP);
348 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising,
349 lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM);
350}
351
352/**
353 * mii_t1_adv_m_mod_linkmode_t
354 * @advertising: target the linkmode advertisement settings
355 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register
356 *
357 * A small helper function that translates BASE-T1 Autonegotiation
358 * Advertisement [31:16] Register bits to linkmode advertisement settings.
359 * Other bits in advertising aren't changed.
360 */
361static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa)
362{
363 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
364 advertising, lpa & MDIO_AN_T1_ADV_M_B10L);
365}
366
367/**
368 * linkmode_adv_to_mii_t1_adv_l_t
369 * @advertising: the linkmode advertisement settings
370 *
371 * A small helper function that translates linkmode advertisement
372 * settings to phy autonegotiation advertisements for the
373 * BASE-T1 Autonegotiation Advertisement [15:0] Register.
374 */
375static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising)
376{
377 u32 result = 0;
378
379 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising))
380 result |= MDIO_AN_T1_ADV_L_PAUSE_CAP;
381 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising))
382 result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM;
383
384 return result;
385}
386
387/**
388 * linkmode_adv_to_mii_t1_adv_m_t
389 * @advertising: the linkmode advertisement settings
390 *
391 * A small helper function that translates linkmode advertisement
392 * settings to phy autonegotiation advertisements for the
393 * BASE-T1 Autonegotiation Advertisement [31:16] Register.
394 */
395static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising)
396{
397 u32 result = 0;
398
399 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising))
400 result |= MDIO_AN_T1_ADV_M_B10L;
401
402 return result;
403}
404
14e47d1f
OR		 405/**
406 * mii_eee_cap1_mod_linkmode_t()
407 * @adv: target the linkmode advertisement settings
408 * @val: register value
409 *
410 * A function that translates value of following registers to the linkmode:
411 * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20)
412 * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60)
413 * IEEE 802.3-2018 45.2.7.14 "EEE "link partner ability 1 register (7.61)
414 */
415static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
416{
417 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
418 adv, val & MDIO_EEE_100TX);
419 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
420 adv, val & MDIO_EEE_1000T);
421 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
422 adv, val & MDIO_EEE_10GT);
423 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
424 adv, val & MDIO_EEE_1000KX);
425 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
426 adv, val & MDIO_EEE_10GKX4);
427 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
428 adv, val & MDIO_EEE_10GKR);
429}
430
022c3f87
OR		 431/**
432 * linkmode_to_mii_eee_cap1_t()
433 * @adv: the linkmode advertisement settings
434 *
435 * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13
436 * "EEE advertisement 1" register (7.60)
437 */
438static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
439{
440 u32 result = 0;
441
442 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv))
443 result |= MDIO_EEE_100TX;
444 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv))
445 result |= MDIO_EEE_1000T;
446 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv))
447 result |= MDIO_EEE_10GT;
448 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv))
449 result |= MDIO_EEE_1000KX;
450 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv))
451 result |= MDIO_EEE_10GKX4;
452 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv))
453 result |= MDIO_EEE_10GKR;
454
455 return result;
456}
457
458/**
459 * mii_10base_t1_adv_mod_linkmode_t()
460 * @adv: linkmode advertisement settings
461 * @val: register value
462 *
463 * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status"
464 * register (7.527) value to the linkmode.
465 */
466static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val)
467{
468 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
469 adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L);
470}
471
472/**
473 * linkmode_adv_to_mii_10base_t1_t()
474 * @adv: linkmode advertisement settings
475 *
476 * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25
477 * "10BASE-T1 AN control" register (7.526) value.
478 */
479static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv)
480{
481 u32 result = 0;
482
483 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv))
484 result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L;
485
486 return result;
487}
488
34dc08e4
RK		 489int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
490int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
6cc7cf81
RK		 491int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
492 u16 mask, u16 set);
34dc08e4 493
bac83c65
AL		 494int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
495int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
496int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
497int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
6cc7cf81
RK		 498int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
499 u16 set);
79365f36
RKO		 500int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
501 u16 mask, u16 set);
4e4aafcd
AL		 502int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
503int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
1d914d51
AL		 504int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad,
505 u32 regnum);
4e4aafcd
AL		 506int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
507 u16 val);
508int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
509 u16 val);
1d914d51
AL		 510int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad,
511 u32 regnum, u16 val);
4e4aafcd
AL		 512int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum,
513 u16 mask, u16 set);
514
515int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad,
516 u32 regnum, u16 mask, u16 set);
bac83c65 517
0ebecb26
SA		 518static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
519{
520 return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
521}
522
523static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
524 u16 val)
525{
526 return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
527}
528
529static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
530 u16 mask, u16 set)
531{
532 return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
533}
534
535static inline int mdiodev_modify_changed(struct mdio_device *mdiodev,
536 u32 regnum, u16 mask, u16 set)
537{
538 return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
539 mask, set);
540}
541
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AL		 542static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad,
543 u32 regnum, u16 mask, u16 set)
90ce665c 544{
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AL		 545 return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum,
546 mask, set);
90ce665c
RK		 547}
548
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AL		 549static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev,
550 int devad, u32 regnum, u16 mask,
551 u16 set)
90ce665c 552{
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AL		 553 return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad,
554 regnum, mask, set);
2dab432c
IC		 555}
556
f6479ea4
RKO		 557static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad,
558 u16 regnum)
559{
560 return mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum);
561}
562
563static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad,
564 u16 regnum, u16 val)
565{
566 return mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum,
567 val);
568}
569
7f854420
AL		 570int mdiobus_register_device(struct mdio_device *mdiodev);
571int mdiobus_unregister_device(struct mdio_device *mdiodev);
572bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
573struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);
574
a9049e0c 575/**
b70f43a1 576 * mdio_module_driver() - Helper macro for registering mdio drivers
39097ab6 577 * @_mdio_driver: driver to register
a9049e0c
AL		 578 *
579 * Helper macro for MDIO drivers which do not do anything special in module
580 * init/exit. Each module may only use this macro once, and calling it
581 * replaces module_init() and module_exit().
582 */
583#define mdio_module_driver(_mdio_driver) \
584static int __init mdio_module_init(void) \
585{ \
586 return mdio_driver_register(&_mdio_driver); \
587} \
588module_init(mdio_module_init); \
589static void __exit mdio_module_exit(void) \
590{ \
591 mdio_driver_unregister(&_mdio_driver); \
592} \
593module_exit(mdio_module_exit)
594
52c94dfa 595#endif /* __LINUX_MDIO_H__ */
Linux 6.x block layer and io_uring tree(s)