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
13 struct gpio_desc;
14 struct mii_bus;
15 struct 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 */
22 enum mdio_mutex_lock_class {
23 MDIO_MUTEX_NORMAL,
24 MDIO_MUTEX_MUX,
25 MDIO_MUTEX_NESTED,
26 };
27
28 struct 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, 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 struct gpio_desc *reset_gpio;
42 struct reset_control *reset_ctrl;
43 unsigned int reset_assert_delay;
44 unsigned int reset_deassert_delay;
45 };
46
47 #define to_mdio_device(__dev) container_of_const(__dev, struct mdio_device, dev)
48
49 /* struct mdio_driver_common: Common to all MDIO drivers */
50 struct mdio_driver_common {
51 struct device_driver driver;
52 int flags;
53 };
54 #define MDIO_DEVICE_FLAG_PHY 1
55
56 static inline struct mdio_driver_common *
to_mdio_common_driver(const struct device_driver * driver)57 to_mdio_common_driver(const struct device_driver *driver)
58 {
59 return container_of(driver, struct mdio_driver_common, driver);
60 }
61
62 /* struct mdio_driver: Generic MDIO driver */
63 struct mdio_driver {
64 struct mdio_driver_common mdiodrv;
65
66 /*
67 * Called during discovery. Used to set
68 * up device-specific structures, if any
69 */
70 int (*probe)(struct mdio_device *mdiodev);
71
72 /* Clears up any memory if needed */
73 void (*remove)(struct mdio_device *mdiodev);
74
75 /* Quiesces the device on system shutdown, turns off interrupts etc */
76 void (*shutdown)(struct mdio_device *mdiodev);
77 };
78
79 static inline struct mdio_driver *
to_mdio_driver(const struct device_driver * driver)80 to_mdio_driver(const struct device_driver *driver)
81 {
82 return container_of(to_mdio_common_driver(driver), struct mdio_driver,
83 mdiodrv);
84 }
85
86 /* device driver data */
mdiodev_set_drvdata(struct mdio_device * mdio,void * data)87 static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
88 {
89 dev_set_drvdata(&mdio->dev, data);
90 }
91
mdiodev_get_drvdata(struct mdio_device * mdio)92 static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
93 {
94 return dev_get_drvdata(&mdio->dev);
95 }
96
97 void mdio_device_free(struct mdio_device *mdiodev);
98 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
99 int mdio_device_register(struct mdio_device *mdiodev);
100 void mdio_device_remove(struct mdio_device *mdiodev);
101 void mdio_device_reset(struct mdio_device *mdiodev, int value);
102 int mdio_driver_register(struct mdio_driver *drv);
103 void mdio_driver_unregister(struct mdio_driver *drv);
104 int mdio_device_bus_match(struct device *dev, struct device_driver *drv);
105
mdio_device_get(struct mdio_device * mdiodev)106 static inline void mdio_device_get(struct mdio_device *mdiodev)
107 {
108 get_device(&mdiodev->dev);
109 }
110
mdio_device_put(struct mdio_device * mdiodev)111 static inline void mdio_device_put(struct mdio_device *mdiodev)
112 {
113 mdio_device_free(mdiodev);
114 }
115
mdio_phy_id_is_c45(int phy_id)116 static inline bool mdio_phy_id_is_c45(int phy_id)
117 {
118 return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
119 }
120
mdio_phy_id_prtad(int phy_id)121 static inline __u16 mdio_phy_id_prtad(int phy_id)
122 {
123 return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
124 }
125
mdio_phy_id_devad(int phy_id)126 static inline __u16 mdio_phy_id_devad(int phy_id)
127 {
128 return phy_id & MDIO_PHY_ID_DEVAD;
129 }
130
131 /**
132 * struct mdio_if_info - Ethernet controller MDIO interface
133 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
134 * @mmds: Mask of MMDs expected to be present in the PHY. This must be
135 * non-zero unless @prtad = %MDIO_PRTAD_NONE.
136 * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then
137 * MII register access will be passed through with @devad =
138 * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to
139 * commonly used clause 22 registers will be translated into
140 * clause 45 registers.
141 * @dev: Net device structure
142 * @mdio_read: Register read function; returns value or negative error code
143 * @mdio_write: Register write function; returns 0 or negative error code
144 */
145 struct mdio_if_info {
146 int prtad;
147 u32 mmds;
148 unsigned mode_support;
149
150 struct net_device *dev;
151 int (*mdio_read)(struct net_device *dev, int prtad, int devad,
152 u16 addr);
153 int (*mdio_write)(struct net_device *dev, int prtad, int devad,
154 u16 addr, u16 val);
155 };
156
157 #define MDIO_PRTAD_NONE (-1)
158 #define MDIO_DEVAD_NONE (-1)
159 #define MDIO_SUPPORTS_C22 1
160 #define MDIO_SUPPORTS_C45 2
161 #define MDIO_EMULATE_C22 4
162
163 struct ethtool_cmd;
164 struct ethtool_pauseparam;
165 extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
166 extern int mdio_set_flag(const struct mdio_if_info *mdio,
167 int prtad, int devad, u16 addr, int mask,
168 bool sense);
169 extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
170 extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
171 extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
172 struct ethtool_cmd *ecmd,
173 u32 npage_adv, u32 npage_lpa);
174 extern void
175 mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
176 struct ethtool_link_ksettings *cmd,
177 u32 npage_adv, u32 npage_lpa);
178
179 /**
180 * mdio45_ethtool_gset - get settings for ETHTOOL_GSET
181 * @mdio: MDIO interface
182 * @ecmd: Ethtool request structure
183 *
184 * Since the CSRs for auto-negotiation using next pages are not fully
185 * standardised, this function does not attempt to decode them. Use
186 * mdio45_ethtool_gset_npage() to specify advertisement bits from next
187 * pages.
188 */
mdio45_ethtool_gset(const struct mdio_if_info * mdio,struct ethtool_cmd * ecmd)189 static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
190 struct ethtool_cmd *ecmd)
191 {
192 mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
193 }
194
195 /**
196 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
197 * @mdio: MDIO interface
198 * @cmd: Ethtool request structure
199 *
200 * Since the CSRs for auto-negotiation using next pages are not fully
201 * standardised, this function does not attempt to decode them. Use
202 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
203 * from next pages.
204 */
205 static inline void
mdio45_ethtool_ksettings_get(const struct mdio_if_info * mdio,struct ethtool_link_ksettings * cmd)206 mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
207 struct ethtool_link_ksettings *cmd)
208 {
209 mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
210 }
211
212 extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
213 struct mii_ioctl_data *mii_data, int cmd);
214
215 /**
216 * mmd_eee_cap_to_ethtool_sup_t
217 * @eee_cap: value of the MMD EEE Capability register
218 *
219 * A small helper function that translates MMD EEE Capability (3.20) bits
220 * to ethtool supported settings.
221 */
mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)222 static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
223 {
224 u32 supported = 0;
225
226 if (eee_cap & MDIO_EEE_100TX)
227 supported |= SUPPORTED_100baseT_Full;
228 if (eee_cap & MDIO_EEE_1000T)
229 supported |= SUPPORTED_1000baseT_Full;
230 if (eee_cap & MDIO_EEE_10GT)
231 supported |= SUPPORTED_10000baseT_Full;
232 if (eee_cap & MDIO_EEE_1000KX)
233 supported |= SUPPORTED_1000baseKX_Full;
234 if (eee_cap & MDIO_EEE_10GKX4)
235 supported |= SUPPORTED_10000baseKX4_Full;
236 if (eee_cap & MDIO_EEE_10GKR)
237 supported |= SUPPORTED_10000baseKR_Full;
238
239 return supported;
240 }
241
242 /**
243 * mmd_eee_adv_to_ethtool_adv_t
244 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
245 *
246 * A small helper function that translates the MMD EEE Advertisment (7.60)
247 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
248 * settings.
249 */
mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)250 static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
251 {
252 u32 adv = 0;
253
254 if (eee_adv & MDIO_EEE_100TX)
255 adv |= ADVERTISED_100baseT_Full;
256 if (eee_adv & MDIO_EEE_1000T)
257 adv |= ADVERTISED_1000baseT_Full;
258 if (eee_adv & MDIO_EEE_10GT)
259 adv |= ADVERTISED_10000baseT_Full;
260 if (eee_adv & MDIO_EEE_1000KX)
261 adv |= ADVERTISED_1000baseKX_Full;
262 if (eee_adv & MDIO_EEE_10GKX4)
263 adv |= ADVERTISED_10000baseKX4_Full;
264 if (eee_adv & MDIO_EEE_10GKR)
265 adv |= ADVERTISED_10000baseKR_Full;
266
267 return adv;
268 }
269
270 /**
271 * ethtool_adv_to_mmd_eee_adv_t
272 * @adv: the ethtool advertisement settings
273 *
274 * A small helper function that translates ethtool advertisement settings
275 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
276 * MMD EEE Link Partner Ability (7.61) registers.
277 */
ethtool_adv_to_mmd_eee_adv_t(u32 adv)278 static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
279 {
280 u16 reg = 0;
281
282 if (adv & ADVERTISED_100baseT_Full)
283 reg |= MDIO_EEE_100TX;
284 if (adv & ADVERTISED_1000baseT_Full)
285 reg |= MDIO_EEE_1000T;
286 if (adv & ADVERTISED_10000baseT_Full)
287 reg |= MDIO_EEE_10GT;
288 if (adv & ADVERTISED_1000baseKX_Full)
289 reg |= MDIO_EEE_1000KX;
290 if (adv & ADVERTISED_10000baseKX4_Full)
291 reg |= MDIO_EEE_10GKX4;
292 if (adv & ADVERTISED_10000baseKR_Full)
293 reg |= MDIO_EEE_10GKR;
294
295 return reg;
296 }
297
298 /**
299 * linkmode_adv_to_mii_10gbt_adv_t
300 * @advertising: the linkmode advertisement settings
301 *
302 * A small helper function that translates linkmode advertisement
303 * settings to phy autonegotiation advertisements for the C45
304 * 10GBASE-T AN CONTROL (7.32) register.
305 */
linkmode_adv_to_mii_10gbt_adv_t(unsigned long * advertising)306 static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
307 {
308 u32 result = 0;
309
310 if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
311 advertising))
312 result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
313 if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
314 advertising))
315 result |= MDIO_AN_10GBT_CTRL_ADV5G;
316 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
317 advertising))
318 result |= MDIO_AN_10GBT_CTRL_ADV10G;
319
320 return result;
321 }
322
323 /**
324 * mii_10gbt_stat_mod_linkmode_lpa_t
325 * @advertising: target the linkmode advertisement settings
326 * @lpa: value of the C45 10GBASE-T AN STATUS register
327 *
328 * A small helper function that translates C45 10GBASE-T AN STATUS register bits
329 * to linkmode advertisement settings. Other bits in advertising aren't changed.
330 */
mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long * advertising,u32 lpa)331 static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
332 u32 lpa)
333 {
334 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
335 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
336 linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
337 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
338 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
339 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
340 }
341
342 /**
343 * mii_t1_adv_l_mod_linkmode_t
344 * @advertising: target the linkmode advertisement settings
345 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register
346 *
347 * A small helper function that translates BASE-T1 Autonegotiation
348 * Advertisement [15:0] Register bits to linkmode advertisement settings.
349 * Other bits in advertising aren't changed.
350 */
mii_t1_adv_l_mod_linkmode_t(unsigned long * advertising,u32 lpa)351 static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa)
352 {
353 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising,
354 lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP);
355 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising,
356 lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM);
357 }
358
359 /**
360 * mii_t1_adv_m_mod_linkmode_t
361 * @advertising: target the linkmode advertisement settings
362 * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register
363 *
364 * A small helper function that translates BASE-T1 Autonegotiation
365 * Advertisement [31:16] Register bits to linkmode advertisement settings.
366 * Other bits in advertising aren't changed.
367 */
mii_t1_adv_m_mod_linkmode_t(unsigned long * advertising,u32 lpa)368 static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa)
369 {
370 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
371 advertising, lpa & MDIO_AN_T1_ADV_M_B10L);
372 }
373
374 /**
375 * linkmode_adv_to_mii_t1_adv_l_t
376 * @advertising: the linkmode advertisement settings
377 *
378 * A small helper function that translates linkmode advertisement
379 * settings to phy autonegotiation advertisements for the
380 * BASE-T1 Autonegotiation Advertisement [15:0] Register.
381 */
linkmode_adv_to_mii_t1_adv_l_t(unsigned long * advertising)382 static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising)
383 {
384 u32 result = 0;
385
386 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising))
387 result |= MDIO_AN_T1_ADV_L_PAUSE_CAP;
388 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising))
389 result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM;
390
391 return result;
392 }
393
394 /**
395 * linkmode_adv_to_mii_t1_adv_m_t
396 * @advertising: the linkmode advertisement settings
397 *
398 * A small helper function that translates linkmode advertisement
399 * settings to phy autonegotiation advertisements for the
400 * BASE-T1 Autonegotiation Advertisement [31:16] Register.
401 */
linkmode_adv_to_mii_t1_adv_m_t(unsigned long * advertising)402 static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising)
403 {
404 u32 result = 0;
405
406 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising))
407 result |= MDIO_AN_T1_ADV_M_B10L;
408
409 return result;
410 }
411
412 /**
413 * mii_eee_cap1_mod_linkmode_t()
414 * @adv: target the linkmode advertisement settings
415 * @val: register value
416 *
417 * A function that translates value of following registers to the linkmode:
418 * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20)
419 * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60)
420 * IEEE 802.3-2018 45.2.7.14 "EEE "link partner ability 1 register (7.61)
421 */
mii_eee_cap1_mod_linkmode_t(unsigned long * adv,u32 val)422 static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val)
423 {
424 linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
425 adv, val & MDIO_EEE_100TX);
426 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
427 adv, val & MDIO_EEE_1000T);
428 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
429 adv, val & MDIO_EEE_10GT);
430 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
431 adv, val & MDIO_EEE_1000KX);
432 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
433 adv, val & MDIO_EEE_10GKX4);
434 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
435 adv, val & MDIO_EEE_10GKR);
436 }
437
438 /**
439 * linkmode_to_mii_eee_cap1_t()
440 * @adv: the linkmode advertisement settings
441 *
442 * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13
443 * "EEE advertisement 1" register (7.60)
444 */
linkmode_to_mii_eee_cap1_t(unsigned long * adv)445 static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv)
446 {
447 u32 result = 0;
448
449 if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv))
450 result |= MDIO_EEE_100TX;
451 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv))
452 result |= MDIO_EEE_1000T;
453 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv))
454 result |= MDIO_EEE_10GT;
455 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv))
456 result |= MDIO_EEE_1000KX;
457 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv))
458 result |= MDIO_EEE_10GKX4;
459 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv))
460 result |= MDIO_EEE_10GKR;
461
462 return result;
463 }
464
465 /**
466 * mii_10base_t1_adv_mod_linkmode_t()
467 * @adv: linkmode advertisement settings
468 * @val: register value
469 *
470 * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status"
471 * register (7.527) value to the linkmode.
472 */
mii_10base_t1_adv_mod_linkmode_t(unsigned long * adv,u16 val)473 static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val)
474 {
475 linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT,
476 adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L);
477 }
478
479 /**
480 * linkmode_adv_to_mii_10base_t1_t()
481 * @adv: linkmode advertisement settings
482 *
483 * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25
484 * "10BASE-T1 AN control" register (7.526) value.
485 */
linkmode_adv_to_mii_10base_t1_t(unsigned long * adv)486 static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv)
487 {
488 u32 result = 0;
489
490 if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv))
491 result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L;
492
493 return result;
494 }
495
496 /**
497 * mii_c73_mod_linkmode - convert a Clause 73 advertisement to linkmodes
498 * @adv: linkmode advertisement setting
499 * @lpa: array of three u16s containing the advertisement
500 *
501 * Convert an IEEE 802.3 Clause 73 advertisement to ethtool link modes.
502 */
mii_c73_mod_linkmode(unsigned long * adv,u16 * lpa)503 static inline void mii_c73_mod_linkmode(unsigned long *adv, u16 *lpa)
504 {
505 linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT,
506 adv, lpa[0] & MDIO_AN_C73_0_PAUSE);
507 linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
508 adv, lpa[0] & MDIO_AN_C73_0_ASM_DIR);
509 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
510 adv, lpa[1] & MDIO_AN_C73_1_1000BASE_KX);
511 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
512 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KX4);
513 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
514 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_KR4);
515 linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
516 adv, lpa[1] & MDIO_AN_C73_1_40GBASE_CR4);
517 /* 100GBASE_CR10 and 100GBASE_KP4 not implemented */
518 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
519 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_KR4);
520 linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
521 adv, lpa[1] & MDIO_AN_C73_1_100GBASE_CR4);
522 /* 25GBASE_R_S not implemented */
523 /* The 25GBASE_R bit can be used for 25Gbase KR or CR modes */
524 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
525 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
526 linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
527 adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R);
528 linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
529 adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KR);
530 linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
531 adv, lpa[2] & MDIO_AN_C73_2_2500BASE_KX);
532 /* 5GBASE_KR not implemented */
533 }
534
535 int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
536 int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
537 int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
538 u16 set);
539 int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
540 u16 mask, u16 set);
541
542 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
543 int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
544 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
545 int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
546 int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
547 u16 set);
548 int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
549 u16 mask, u16 set);
550 int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
551 int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum);
552 int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad,
553 u32 regnum);
554 int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
555 u16 val);
556 int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
557 u16 val);
558 int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad,
559 u32 regnum, u16 val);
560 int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum,
561 u16 mask, u16 set);
562
563 int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad,
564 u32 regnum, u16 mask, u16 set);
565
__mdiodev_read(struct mdio_device * mdiodev,u32 regnum)566 static inline int __mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
567 {
568 return __mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
569 }
570
__mdiodev_write(struct mdio_device * mdiodev,u32 regnum,u16 val)571 static inline int __mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
572 u16 val)
573 {
574 return __mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
575 }
576
__mdiodev_modify(struct mdio_device * mdiodev,u32 regnum,u16 mask,u16 set)577 static inline int __mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
578 u16 mask, u16 set)
579 {
580 return __mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
581 }
582
__mdiodev_modify_changed(struct mdio_device * mdiodev,u32 regnum,u16 mask,u16 set)583 static inline int __mdiodev_modify_changed(struct mdio_device *mdiodev,
584 u32 regnum, u16 mask, u16 set)
585 {
586 return __mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
587 mask, set);
588 }
589
mdiodev_read(struct mdio_device * mdiodev,u32 regnum)590 static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum)
591 {
592 return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum);
593 }
594
mdiodev_write(struct mdio_device * mdiodev,u32 regnum,u16 val)595 static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum,
596 u16 val)
597 {
598 return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val);
599 }
600
mdiodev_modify(struct mdio_device * mdiodev,u32 regnum,u16 mask,u16 set)601 static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum,
602 u16 mask, u16 set)
603 {
604 return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set);
605 }
606
mdiodev_modify_changed(struct mdio_device * mdiodev,u32 regnum,u16 mask,u16 set)607 static inline int mdiodev_modify_changed(struct mdio_device *mdiodev,
608 u32 regnum, u16 mask, u16 set)
609 {
610 return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum,
611 mask, set);
612 }
613
mdiodev_c45_modify(struct mdio_device * mdiodev,int devad,u32 regnum,u16 mask,u16 set)614 static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad,
615 u32 regnum, u16 mask, u16 set)
616 {
617 return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum,
618 mask, set);
619 }
620
mdiodev_c45_modify_changed(struct mdio_device * mdiodev,int devad,u32 regnum,u16 mask,u16 set)621 static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev,
622 int devad, u32 regnum, u16 mask,
623 u16 set)
624 {
625 return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad,
626 regnum, mask, set);
627 }
628
mdiodev_c45_read(struct mdio_device * mdiodev,int devad,u16 regnum)629 static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad,
630 u16 regnum)
631 {
632 return mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum);
633 }
634
mdiodev_c45_write(struct mdio_device * mdiodev,u32 devad,u16 regnum,u16 val)635 static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad,
636 u16 regnum, u16 val)
637 {
638 return mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum,
639 val);
640 }
641
642 int mdiobus_register_device(struct mdio_device *mdiodev);
643 int mdiobus_unregister_device(struct mdio_device *mdiodev);
644 bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
645 struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);
646
647 /**
648 * mdio_module_driver() - Helper macro for registering mdio drivers
649 * @_mdio_driver: driver to register
650 *
651 * Helper macro for MDIO drivers which do not do anything special in module
652 * init/exit. Each module may only use this macro once, and calling it
653 * replaces module_init() and module_exit().
654 */
655 #define mdio_module_driver(_mdio_driver) \
656 static int __init mdio_module_init(void) \
657 { \
658 return mdio_driver_register(&_mdio_driver); \
659 } \
660 module_init(mdio_module_init); \
661 static void __exit mdio_module_exit(void) \
662 { \
663 mdio_driver_unregister(&_mdio_driver); \
664 } \
665 module_exit(mdio_module_exit)
666
667 #endif /* __LINUX_MDIO_H__ */
668