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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
4 * Copyright 2006-2009 Solarflare Communications Inc.
5 */
6#ifndef __LINUX_MDIO_H__
7#define __LINUX_MDIO_H__
8
9#include <uapi/linux/mdio.h>
10#include <linux/bitfield.h>
11#include <linux/mod_devicetable.h>
12
13struct gpio_desc;
14struct mii_bus;
15struct reset_control;
16
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
28struct mdio_device {
29 struct device dev;
30
31 struct mii_bus *bus;
32 char modalias[MDIO_NAME_SIZE];
33
34 int (*bus_match)(struct device *dev, const struct device_driver *drv);
35 void (*device_free)(struct mdio_device *mdiodev);
36 void (*device_remove)(struct mdio_device *mdiodev);
37
38 /* Bus address of the MDIO device (0-31) */
39 int addr;
40 int flags;
41 int reset_state;
42 struct gpio_desc *reset_gpio;
43 struct reset_control *reset_ctrl;
44 unsigned int reset_assert_delay;
45 unsigned int reset_deassert_delay;
46};
47
48#define to_mdio_device(__dev) container_of_const(__dev, struct mdio_device, dev)
49
50/* struct mdio_driver_common: Common to all MDIO drivers */
51struct mdio_driver_common {
52 struct device_driver driver;
53 int flags;
54};
55#define MDIO_DEVICE_FLAG_PHY 1
56
57#define to_mdio_common_driver(__drv_c) container_of_const(__drv_c, struct mdio_driver_common, \
58 driver)
59
60/* struct mdio_driver: Generic MDIO driver */
61struct mdio_driver {
62 struct mdio_driver_common mdiodrv;
63
64 /*
65 * Called during discovery. Used to set
66 * up device-specific structures, if any
67 */
68 int (*probe)(struct mdio_device *mdiodev);
69
70 /* Clears up any memory if needed */
71 void (*remove)(struct mdio_device *mdiodev);
72
73 /* Quiesces the device on system shutdown, turns off interrupts etc */
74 void (*shutdown)(struct mdio_device *mdiodev);
75};
76
77#define to_mdio_driver(__drv_m) container_of_const(to_mdio_common_driver(__drv_m), \
78 struct mdio_driver, mdiodrv)
79
80/* device driver data */
81static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
82{
83 dev_set_drvdata(&mdio->dev, data);
84}
85
86static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
87{
88 return dev_get_drvdata(&mdio->dev);
89}
90
91void mdio_device_free(struct mdio_device *mdiodev);
92struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
93int mdio_device_register(struct mdio_device *mdiodev);
94void mdio_device_remove(struct mdio_device *mdiodev);
95void mdio_device_reset(struct mdio_device *mdiodev, int value);
96int mdio_driver_register(struct mdio_driver *drv);
97void mdio_driver_unregister(struct mdio_driver *drv);
98
99static inline void mdio_device_get(struct mdio_device *mdiodev)
100{
101 get_device(&mdiodev->dev);
102}
103
104static inline void mdio_device_put(struct mdio_device *mdiodev)
105{
106 mdio_device_free(mdiodev);
107}
108
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
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;
140 u32 mmds;
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)
152#define MDIO_SUPPORTS_C22 1
153#define MDIO_SUPPORTS_C45 2
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
165mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
166 struct ethtool_link_ksettings *cmd,
167 u32 npage_adv, u32 npage_lpa);
168
169/**
170 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
171 * @mdio: MDIO interface
172 * @cmd: Ethtool request structure
173 *
174 * Since the CSRs for auto-negotiation using next pages are not fully
175 * standardised, this function does not attempt to decode them. Use
176 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
177 * from next pages.
178 */
179static inline void
180mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
181 struct ethtool_link_ksettings *cmd)
182{
183 mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
184}
185
186extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
187 struct mii_ioctl_data *mii_data, int cmd);
188
189/**
190 * mmd_eee_cap_to_ethtool_sup_t
191 * @eee_cap: value of the MMD EEE Capability register
192 *
193 * A small helper function that translates MMD EEE Capability (3.20) bits
194 * to ethtool supported settings.
195 */
196static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
197{
198 u32 supported = 0;
199
200 if (eee_cap & MDIO_EEE_100TX)
201 supported |= SUPPORTED_100baseT_Full;
202 if (eee_cap & MDIO_EEE_1000T)
203 supported |= SUPPORTED_1000baseT_Full;
204 if (eee_cap & MDIO_EEE_10GT)
205 supported |= SUPPORTED_10000baseT_Full;
206 if (eee_cap & MDIO_EEE_1000KX)
207 supported |= SUPPORTED_1000baseKX_Full;
208 if (eee_cap & MDIO_EEE_10GKX4)
209 supported |= SUPPORTED_10000baseKX4_Full;
210 if (eee_cap & MDIO_EEE_10GKR)
211 supported |= SUPPORTED_10000baseKR_Full;
212
213 return supported;
214}
215
216/**
217 * mmd_eee_adv_to_ethtool_adv_t
218 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
219 *
220 * A small helper function that translates the MMD EEE Advertisment (7.60)
221 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
222 * settings.
223 */
224static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
225{
226 u32 adv = 0;
227
228 if (eee_adv & MDIO_EEE_100TX)
229 adv |= ADVERTISED_100baseT_Full;
230 if (eee_adv & MDIO_EEE_1000T)
231 adv |= ADVERTISED_1000baseT_Full;
232 if (eee_adv & MDIO_EEE_10GT)
233 adv |= ADVERTISED_10000baseT_Full;
234 if (eee_adv & MDIO_EEE_1000KX)
235 adv |= ADVERTISED_1000baseKX_Full;
236 if (eee_adv & MDIO_EEE_10GKX4)
237 adv |= ADVERTISED_10000baseKX4_Full;
238 if (eee_adv & MDIO_EEE_10GKR)
239 adv |= ADVERTISED_10000baseKR_Full;
240
241 return adv;
242}
243
244/**
245 * ethtool_adv_to_mmd_eee_adv_t
246 * @adv: the ethtool advertisement settings
247 *
248 * A small helper function that translates ethtool advertisement settings
249 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
250 * MMD EEE Link Partner Ability (7.61) registers.
251 */
252static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
253{
254 u16 reg = 0;
255
256 if (adv & ADVERTISED_100baseT_Full)
257 reg |= MDIO_EEE_100TX;
258 if (adv & ADVERTISED_1000baseT_Full)
259 reg |= MDIO_EEE_1000T;
260 if (adv & ADVERTISED_10000baseT_Full)
261 reg |= MDIO_EEE_10GT;
262 if (adv & ADVERTISED_1000baseKX_Full)
263 reg |= MDIO_EEE_1000KX;
264 if (adv & ADVERTISED_10000baseKX4_Full)
265 reg |= MDIO_EEE_10GKX4;
266 if (adv & ADVERTISED_10000baseKR_Full)
267 reg |= MDIO_EEE_10GKR;
268
269 return reg;
270}
271
272/**
273 * linkmode_adv_to_mii_10gbt_adv_t
274 * @advertising: the linkmode advertisement settings
275 *
276 * A small helper function that translates linkmode advertisement
277 * settings to phy autonegotiation advertisements for the C45
278 * 10GBASE-T AN CONTROL (7.32) register.
279 */
280static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
281{
282 u32 result = 0;
283
284 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
285 advertising))
286 result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
287 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
288 advertising))
289 result |= MDIO_AN_10GBT_CTRL_ADV5G;
290 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
291 advertising))
292 result |= MDIO_AN_10GBT_CTRL_ADV10G;
293
294 return result;
295}
296
297/**
298 * mii_10gbt_stat_mod_linkmode_lpa_t
299 * @advertising: target the linkmode advertisement settings
300 * @lpa: value of the C45 10GBASE-T AN STATUS register
301 *
302 * A small helper function that translates C45 10GBASE-T AN STATUS register bits
303 * to linkmode advertisement settings. Other bits in advertising aren't changed.
304 */
305static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
306 u32 lpa)
307{
308 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
309 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
310 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
311 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
312 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
313 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
314}
315
316/**
317 * mii_t1_adv_l_mod_linkmode_t
318 * @advertising: target the linkmode advertisement settings
319 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register
320 *
321 * A small helper function that translates BASE-T1 Autonegotiation
322 * Advertisement [15:0] Register bits to linkmode advertisement settings.
323 * Other bits in advertising aren't changed.
324 */
325static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa)
326{
327 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising,
328 lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP);
329 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising,
330 lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM);
331}
332
333/**
334 * mii_t1_adv_m_mod_linkmode_t
335 * @advertising: target the linkmode advertisement settings
336 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register
337 *
338 * A small helper function that translates BASE-T1 Autonegotiation
339 * Advertisement [31:16] Register bits to linkmode advertisement settings.
340 * Other bits in advertising aren't changed.
341 */
342static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa)
343{
344 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
345 advertising, lpa & MDIO_AN_T1_ADV_M_B10L);
346 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
347 advertising, lpa & MDIO_AN_T1_ADV_M_100BT1);
348 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT,
349 advertising, lpa & MDIO_AN_T1_ADV_M_1000BT1);
350}
351
352/**
353 * linkmode_adv_to_mii_t1_adv_l_t
354 * @advertising: the linkmode advertisement settings
355 *
356 * A small helper function that translates linkmode advertisement
357 * settings to phy autonegotiation advertisements for the
358 * BASE-T1 Autonegotiation Advertisement [15:0] Register.
359 */
360static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising)
361{
362 u32 result = 0;
363
364 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising))
365 result |= MDIO_AN_T1_ADV_L_PAUSE_CAP;
366 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising))
367 result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM;
368
369 return result;
370}
371
372/**
373 * linkmode_adv_to_mii_t1_adv_m_t
374 * @advertising: the linkmode advertisement settings
375 *
376 * A small helper function that translates linkmode advertisement
377 * settings to phy autonegotiation advertisements for the
378 * BASE-T1 Autonegotiation Advertisement [31:16] Register.
379 */
380static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising)
381{
382 u32 result = 0;
383
384 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising))
385 result |= MDIO_AN_T1_ADV_M_B10L;
386 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT, advertising))
387 result |= MDIO_AN_T1_ADV_M_100BT1;
388 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT, advertising))
389 result |= MDIO_AN_T1_ADV_M_1000BT1;
390
391 return result;
392}
393
394/**
395 * mii_eee_cap1_mod_linkmode_t()
396 * @adv: target the linkmode advertisement settings
397 * @val: register value
398 *
399 * A function that translates value of following registers to the linkmode:
400 * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20)
401 * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60)
402 * IEEE 802.3-2018 45.2.7.14 "EEE link partner ability 1" register (7.61)
403 */
404static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
405{
406 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
407 adv, val & MDIO_EEE_100TX);
408 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
409 adv, val & MDIO_EEE_1000T);
410 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
411 adv, val & MDIO_EEE_10GT);
412 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
413 adv, val & MDIO_EEE_1000KX);
414 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
415 adv, val & MDIO_EEE_10GKX4);
416 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
417 adv, val & MDIO_EEE_10GKR);
418}
419
420/**
421 * mii_eee_cap2_mod_linkmode_sup_t()
422 * @adv: target the linkmode settings
423 * @val: register value
424 *
425 * A function that translates value of following registers to the linkmode:
426 * IEEE 802.3-2022 45.2.3.11 "EEE control and capability 2" register (3.21)
427 */
428static inline void mii_eee_cap2_mod_linkmode_sup_t(unsigned long *adv, u32 val)
429{
430 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
431 adv, val & MDIO_EEE_2_5GT);
432 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
433 adv, val & MDIO_EEE_5GT);
434}
435
436/**
437 * mii_eee_cap2_mod_linkmode_adv_t()
438 * @adv: target the linkmode advertisement settings
439 * @val: register value
440 *
441 * A function that translates value of following registers to the linkmode:
442 * IEEE 802.3-2022 45.2.7.16 "EEE advertisement 2" register (7.62)
443 * IEEE 802.3-2022 45.2.7.17 "EEE link partner ability 2" register (7.63)
444 * Note: Currently this function is the same as mii_eee_cap2_mod_linkmode_sup_t.
445 * For certain, not yet supported, modes however the bits differ.
446 * Therefore create separate functions already.
447 */
448static inline void mii_eee_cap2_mod_linkmode_adv_t(unsigned long *adv, u32 val)
449{
450 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
451 adv, val & MDIO_EEE_2_5GT);
452 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
453 adv, val & MDIO_EEE_5GT);
454}
455
456/**
457 * linkmode_to_mii_eee_cap1_t()
458 * @adv: the linkmode advertisement settings
459 *
460 * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13
461 * "EEE advertisement 1" register (7.60)
462 */
463static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
464{
465 u32 result = 0;
466
467 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv))
468 result |= MDIO_EEE_100TX;
469 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv))
470 result |= MDIO_EEE_1000T;
471 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv))
472 result |= MDIO_EEE_10GT;
473 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv))
474 result |= MDIO_EEE_1000KX;
475 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv))
476 result |= MDIO_EEE_10GKX4;
477 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv))
478 result |= MDIO_EEE_10GKR;
479
480 return result;
481}
482
483/**
484 * linkmode_to_mii_eee_cap2_t()
485 * @adv: the linkmode advertisement settings
486 *
487 * A function that translates linkmode to value for IEEE 802.3-2022 45.2.7.16
488 * "EEE advertisement 2" register (7.62)
489 */
490static inline u32 linkmode_to_mii_eee_cap2_t(unsigned long *adv)
491{
492 u32 result = 0;
493
494 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, adv))
495 result |= MDIO_EEE_2_5GT;
496 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, adv))
497 result |= MDIO_EEE_5GT;
498
499 return result;
500}
501
502/**
503 * mii_10base_t1_adv_mod_linkmode_t()
504 * @adv: linkmode advertisement settings
505 * @val: register value
506 *
507 * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status"
508 * register (7.527) value to the linkmode.
509 */
510static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val)
511{
512 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
513 adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L);
514}
515
516/**
517 * linkmode_adv_to_mii_10base_t1_t()
518 * @adv: linkmode advertisement settings
519 *
520 * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25
521 * "10BASE-T1 AN control" register (7.526) value.
522 */
523static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv)
524{
525 u32 result = 0;
526
527 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv))
528 result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L;
529
530 return result;
531}
532
533/**
534 * mii_c73_mod_linkmode - convert a Clause 73 advertisement to linkmodes
535 * @adv: linkmode advertisement setting
536 * @lpa: array of three u16s containing the advertisement
537 *
538 * Convert an IEEE 802.3 Clause 73 advertisement to ethtool link modes.
539 */
540static inline void mii_c73_mod_linkmode(unsigned long *adv, u16 *lpa)
541{
542 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT,
543 adv, lpa[0] & MDIO_AN_C73_0_PAUSE);
544 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
545 adv, lpa[0] & MDIO_AN_C73_0_ASM_DIR);
546 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
547 adv, lpa[1] & MDIO_AN_C73_1_1000BASE_KX);
548 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
549 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KX4);
550 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
551 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_KR4);
552 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
553 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_CR4);
554 /* 100GBASE_CR10 and 100GBASE_KP4 not implemented */
555 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
556 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_KR4);
557 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
558 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_CR4);
559 /* 25GBASE_R_S not implemented */
560 /* The 25GBASE_R bit can be used for 25Gbase KR or CR modes */
561 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
562 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
563 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
564 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
565 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
566 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KR);
567 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
568 adv, lpa[2] & MDIO_AN_C73_2_2500BASE_KX);
569 /* 5GBASE_KR not implemented */
570}
571
572int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
573int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
574int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
575 u16 set);
576int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
577 u16 mask, u16 set);
578
579int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
580int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
581int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
582int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
583int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
584 u16 set);
585int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
586 u16 mask, u16 set);
587int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
588int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
589int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad,
590 u32 regnum);
591int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
592 u16 val);
593int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
594 u16 val);
595int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad,
596 u32 regnum, u16 val);
597int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum,
598 u16 mask, u16 set);
599
600int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad,
601 u32 regnum, u16 mask, u16 set);
602
603static inline int __mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
604{
605 return __mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
606}
607
608static inline int __mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
609 u16 val)
610{
611 return __mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
612}
613
614static inline int __mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
615 u16 mask, u16 set)
616{
617 return __mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
618}
619
620static inline int __mdiodev_modify_changed(struct mdio_device *mdiodev,
621 u32 regnum, u16 mask, u16 set)
622{
623 return __mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
624 mask, set);
625}
626
627static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
628{
629 return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
630}
631
632static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
633 u16 val)
634{
635 return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
636}
637
638static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
639 u16 mask, u16 set)
640{
641 return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
642}
643
644static inline int mdiodev_modify_changed(struct mdio_device *mdiodev,
645 u32 regnum, u16 mask, u16 set)
646{
647 return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
648 mask, set);
649}
650
651static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad,
652 u32 regnum, u16 mask, u16 set)
653{
654 return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum,
655 mask, set);
656}
657
658static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev,
659 int devad, u32 regnum, u16 mask,
660 u16 set)
661{
662 return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad,
663 regnum, mask, set);
664}
665
666static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad,
667 u16 regnum)
668{
669 return mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum);
670}
671
672static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad,
673 u16 regnum, u16 val)
674{
675 return mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum,
676 val);
677}
678
679int mdiobus_register_device(struct mdio_device *mdiodev);
680int mdiobus_unregister_device(struct mdio_device *mdiodev);
681bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
682struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);
683
684/**
685 * mdio_module_driver() - Helper macro for registering mdio drivers
686 * @_mdio_driver: driver to register
687 *
688 * Helper macro for MDIO drivers which do not do anything special in module
689 * init/exit. Each module may only use this macro once, and calling it
690 * replaces module_init() and module_exit().
691 */
692#define mdio_module_driver(_mdio_driver) \
693 module_driver(_mdio_driver, mdio_driver_register, mdio_driver_unregister)
694
695#endif /* __LINUX_MDIO_H__ */