Commit | Line | Data |
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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 | 13 | struct gpio_desc; |
bac83c65 | 14 | struct mii_bus; |
33374098 | 15 | struct 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 | */ | |
22 | enum mdio_mutex_lock_class { | |
23 | MDIO_MUTEX_NORMAL, | |
24 | MDIO_MUTEX_MUX, | |
25 | MDIO_MUTEX_NESTED, | |
26 | }; | |
27 | ||
e5a03bfd AL |
28 | struct 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 | |
47 | static 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 */ |
53 | struct mdio_driver_common { | |
54 | struct device_driver driver; | |
55 | int flags; | |
56 | }; | |
7f854420 | 57 | #define MDIO_DEVICE_FLAG_PHY 1 |
7eab14de AL |
58 | |
59 | static inline struct mdio_driver_common * | |
60 | to_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 */ | |
66 | struct 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 | |
82 | static inline struct mdio_driver * | |
83 | to_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 */ |
90 | static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data) | |
91 | { | |
92 | dev_set_drvdata(&mdio->dev, data); | |
93 | } | |
94 | ||
95 | static inline void *mdiodev_get_drvdata(struct mdio_device *mdio) | |
96 | { | |
97 | return dev_get_drvdata(&mdio->dev); | |
98 | } | |
99 | ||
a9049e0c AL |
100 | void mdio_device_free(struct mdio_device *mdiodev); |
101 | struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr); | |
102 | int mdio_device_register(struct mdio_device *mdiodev); | |
103 | void mdio_device_remove(struct mdio_device *mdiodev); | |
bafbdd52 | 104 | void mdio_device_reset(struct mdio_device *mdiodev, int value); |
a9049e0c AL |
105 | int mdio_driver_register(struct mdio_driver *drv); |
106 | void mdio_driver_unregister(struct mdio_driver *drv); | |
648ea013 | 107 | int mdio_device_bus_match(struct device *dev, struct device_driver *drv); |
7f854420 | 108 | |
c4933fa8 RKO |
109 | static inline void mdio_device_get(struct mdio_device *mdiodev) |
110 | { | |
111 | get_device(&mdiodev->dev); | |
112 | } | |
113 | ||
114 | static inline void mdio_device_put(struct mdio_device *mdiodev) | |
115 | { | |
116 | mdio_device_free(mdiodev); | |
117 | } | |
118 | ||
52c94dfa BH |
119 | static inline bool mdio_phy_id_is_c45(int phy_id) |
120 | { | |
121 | return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK); | |
122 | } | |
123 | ||
124 | static inline __u16 mdio_phy_id_prtad(int phy_id) | |
125 | { | |
126 | return (phy_id & MDIO_PHY_ID_PRTAD) >> 5; | |
127 | } | |
128 | ||
129 | static inline __u16 mdio_phy_id_devad(int phy_id) | |
130 | { | |
131 | return phy_id & MDIO_PHY_ID_DEVAD; | |
132 | } | |
133 | ||
1b1c2e95 BH |
134 | /** |
135 | * struct mdio_if_info - Ethernet controller MDIO interface | |
136 | * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown) | |
137 | * @mmds: Mask of MMDs expected to be present in the PHY. This must be | |
138 | * non-zero unless @prtad = %MDIO_PRTAD_NONE. | |
139 | * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then | |
140 | * MII register access will be passed through with @devad = | |
141 | * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to | |
142 | * commonly used clause 22 registers will be translated into | |
143 | * clause 45 registers. | |
144 | * @dev: Net device structure | |
145 | * @mdio_read: Register read function; returns value or negative error code | |
146 | * @mdio_write: Register write function; returns 0 or negative error code | |
147 | */ | |
148 | struct mdio_if_info { | |
149 | int prtad; | |
23428e6b | 150 | u32 mmds; |
1b1c2e95 BH |
151 | unsigned mode_support; |
152 | ||
153 | struct net_device *dev; | |
154 | int (*mdio_read)(struct net_device *dev, int prtad, int devad, | |
155 | u16 addr); | |
156 | int (*mdio_write)(struct net_device *dev, int prtad, int devad, | |
157 | u16 addr, u16 val); | |
158 | }; | |
159 | ||
160 | #define MDIO_PRTAD_NONE (-1) | |
161 | #define MDIO_DEVAD_NONE (-1) | |
9c717758 BH |
162 | #define MDIO_SUPPORTS_C22 1 |
163 | #define MDIO_SUPPORTS_C45 2 | |
1b1c2e95 BH |
164 | #define MDIO_EMULATE_C22 4 |
165 | ||
166 | struct ethtool_cmd; | |
167 | struct ethtool_pauseparam; | |
168 | extern int mdio45_probe(struct mdio_if_info *mdio, int prtad); | |
169 | extern int mdio_set_flag(const struct mdio_if_info *mdio, | |
170 | int prtad, int devad, u16 addr, int mask, | |
171 | bool sense); | |
172 | extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds); | |
173 | extern int mdio45_nway_restart(const struct mdio_if_info *mdio); | |
174 | extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, | |
175 | struct ethtool_cmd *ecmd, | |
176 | u32 npage_adv, u32 npage_lpa); | |
8e4881aa PR |
177 | extern void |
178 | mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio, | |
179 | struct ethtool_link_ksettings *cmd, | |
180 | u32 npage_adv, u32 npage_lpa); | |
1b1c2e95 BH |
181 | |
182 | /** | |
183 | * mdio45_ethtool_gset - get settings for ETHTOOL_GSET | |
184 | * @mdio: MDIO interface | |
185 | * @ecmd: Ethtool request structure | |
186 | * | |
187 | * Since the CSRs for auto-negotiation using next pages are not fully | |
188 | * standardised, this function does not attempt to decode them. Use | |
189 | * mdio45_ethtool_gset_npage() to specify advertisement bits from next | |
190 | * pages. | |
191 | */ | |
192 | static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio, | |
193 | struct ethtool_cmd *ecmd) | |
194 | { | |
195 | mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0); | |
196 | } | |
197 | ||
8e4881aa PR |
198 | /** |
199 | * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS | |
200 | * @mdio: MDIO interface | |
201 | * @cmd: Ethtool request structure | |
202 | * | |
203 | * Since the CSRs for auto-negotiation using next pages are not fully | |
204 | * standardised, this function does not attempt to decode them. Use | |
205 | * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits | |
206 | * from next pages. | |
207 | */ | |
208 | static inline void | |
209 | mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio, | |
210 | struct ethtool_link_ksettings *cmd) | |
211 | { | |
212 | mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0); | |
213 | } | |
214 | ||
1b1c2e95 BH |
215 | extern int mdio_mii_ioctl(const struct mdio_if_info *mdio, |
216 | struct mii_ioctl_data *mii_data, int cmd); | |
217 | ||
b32607dd AB |
218 | /** |
219 | * mmd_eee_cap_to_ethtool_sup_t | |
220 | * @eee_cap: value of the MMD EEE Capability register | |
221 | * | |
222 | * A small helper function that translates MMD EEE Capability (3.20) bits | |
223 | * to ethtool supported settings. | |
224 | */ | |
225 | static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap) | |
226 | { | |
227 | u32 supported = 0; | |
228 | ||
229 | if (eee_cap & MDIO_EEE_100TX) | |
230 | supported |= SUPPORTED_100baseT_Full; | |
231 | if (eee_cap & MDIO_EEE_1000T) | |
232 | supported |= SUPPORTED_1000baseT_Full; | |
233 | if (eee_cap & MDIO_EEE_10GT) | |
234 | supported |= SUPPORTED_10000baseT_Full; | |
235 | if (eee_cap & MDIO_EEE_1000KX) | |
236 | supported |= SUPPORTED_1000baseKX_Full; | |
237 | if (eee_cap & MDIO_EEE_10GKX4) | |
238 | supported |= SUPPORTED_10000baseKX4_Full; | |
239 | if (eee_cap & MDIO_EEE_10GKR) | |
240 | supported |= SUPPORTED_10000baseKR_Full; | |
241 | ||
242 | return supported; | |
243 | } | |
244 | ||
245 | /** | |
246 | * mmd_eee_adv_to_ethtool_adv_t | |
247 | * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers | |
248 | * | |
249 | * A small helper function that translates the MMD EEE Advertisment (7.60) | |
250 | * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement | |
251 | * settings. | |
252 | */ | |
253 | static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv) | |
254 | { | |
255 | u32 adv = 0; | |
256 | ||
257 | if (eee_adv & MDIO_EEE_100TX) | |
258 | adv |= ADVERTISED_100baseT_Full; | |
259 | if (eee_adv & MDIO_EEE_1000T) | |
260 | adv |= ADVERTISED_1000baseT_Full; | |
261 | if (eee_adv & MDIO_EEE_10GT) | |
262 | adv |= ADVERTISED_10000baseT_Full; | |
263 | if (eee_adv & MDIO_EEE_1000KX) | |
264 | adv |= ADVERTISED_1000baseKX_Full; | |
265 | if (eee_adv & MDIO_EEE_10GKX4) | |
266 | adv |= ADVERTISED_10000baseKX4_Full; | |
267 | if (eee_adv & MDIO_EEE_10GKR) | |
268 | adv |= ADVERTISED_10000baseKR_Full; | |
269 | ||
270 | return adv; | |
271 | } | |
272 | ||
273 | /** | |
274 | * ethtool_adv_to_mmd_eee_adv_t | |
275 | * @adv: the ethtool advertisement settings | |
276 | * | |
277 | * A small helper function that translates ethtool advertisement settings | |
278 | * to EEE advertisements for the MMD EEE Advertisement (7.60) and | |
279 | * MMD EEE Link Partner Ability (7.61) registers. | |
280 | */ | |
281 | static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv) | |
282 | { | |
283 | u16 reg = 0; | |
284 | ||
285 | if (adv & ADVERTISED_100baseT_Full) | |
286 | reg |= MDIO_EEE_100TX; | |
287 | if (adv & ADVERTISED_1000baseT_Full) | |
288 | reg |= MDIO_EEE_1000T; | |
289 | if (adv & ADVERTISED_10000baseT_Full) | |
290 | reg |= MDIO_EEE_10GT; | |
291 | if (adv & ADVERTISED_1000baseKX_Full) | |
292 | reg |= MDIO_EEE_1000KX; | |
293 | if (adv & ADVERTISED_10000baseKX4_Full) | |
294 | reg |= MDIO_EEE_10GKX4; | |
295 | if (adv & ADVERTISED_10000baseKR_Full) | |
296 | reg |= MDIO_EEE_10GKR; | |
297 | ||
298 | return reg; | |
299 | } | |
300 | ||
744e458a HK |
301 | /** |
302 | * linkmode_adv_to_mii_10gbt_adv_t | |
303 | * @advertising: the linkmode advertisement settings | |
304 | * | |
305 | * A small helper function that translates linkmode advertisement | |
306 | * settings to phy autonegotiation advertisements for the C45 | |
307 | * 10GBASE-T AN CONTROL (7.32) register. | |
308 | */ | |
309 | static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising) | |
310 | { | |
311 | u32 result = 0; | |
312 | ||
313 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, | |
314 | advertising)) | |
315 | result |= MDIO_AN_10GBT_CTRL_ADV2_5G; | |
316 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, | |
317 | advertising)) | |
318 | result |= MDIO_AN_10GBT_CTRL_ADV5G; | |
319 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, | |
320 | advertising)) | |
321 | result |= MDIO_AN_10GBT_CTRL_ADV10G; | |
322 | ||
323 | return result; | |
324 | } | |
325 | ||
9004a14c HK |
326 | /** |
327 | * mii_10gbt_stat_mod_linkmode_lpa_t | |
328 | * @advertising: target the linkmode advertisement settings | |
39097ab6 | 329 | * @lpa: value of the C45 10GBASE-T AN STATUS register |
9004a14c HK |
330 | * |
331 | * A small helper function that translates C45 10GBASE-T AN STATUS register bits | |
332 | * to linkmode advertisement settings. Other bits in advertising aren't changed. | |
333 | */ | |
334 | static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising, | |
335 | u32 lpa) | |
336 | { | |
337 | linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, | |
338 | advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G); | |
339 | linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, | |
340 | advertising, lpa & MDIO_AN_10GBT_STAT_LP5G); | |
341 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, | |
342 | advertising, lpa & MDIO_AN_10GBT_STAT_LP10G); | |
343 | } | |
344 | ||
3da8ffd8 AT |
345 | /** |
346 | * mii_t1_adv_l_mod_linkmode_t | |
347 | * @advertising: target the linkmode advertisement settings | |
348 | * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register | |
349 | * | |
350 | * A small helper function that translates BASE-T1 Autonegotiation | |
351 | * Advertisement [15:0] Register bits to linkmode advertisement settings. | |
352 | * Other bits in advertising aren't changed. | |
353 | */ | |
354 | static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa) | |
355 | { | |
356 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising, | |
357 | lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP); | |
358 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising, | |
359 | lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM); | |
360 | } | |
361 | ||
362 | /** | |
363 | * mii_t1_adv_m_mod_linkmode_t | |
364 | * @advertising: target the linkmode advertisement settings | |
365 | * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register | |
366 | * | |
367 | * A small helper function that translates BASE-T1 Autonegotiation | |
368 | * Advertisement [31:16] Register bits to linkmode advertisement settings. | |
369 | * Other bits in advertising aren't changed. | |
370 | */ | |
371 | static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa) | |
372 | { | |
373 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, | |
374 | advertising, lpa & MDIO_AN_T1_ADV_M_B10L); | |
375 | } | |
376 | ||
377 | /** | |
378 | * linkmode_adv_to_mii_t1_adv_l_t | |
379 | * @advertising: the linkmode advertisement settings | |
380 | * | |
381 | * A small helper function that translates linkmode advertisement | |
382 | * settings to phy autonegotiation advertisements for the | |
383 | * BASE-T1 Autonegotiation Advertisement [15:0] Register. | |
384 | */ | |
385 | static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising) | |
386 | { | |
387 | u32 result = 0; | |
388 | ||
389 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising)) | |
390 | result |= MDIO_AN_T1_ADV_L_PAUSE_CAP; | |
391 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising)) | |
392 | result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM; | |
393 | ||
394 | return result; | |
395 | } | |
396 | ||
397 | /** | |
398 | * linkmode_adv_to_mii_t1_adv_m_t | |
399 | * @advertising: the linkmode advertisement settings | |
400 | * | |
401 | * A small helper function that translates linkmode advertisement | |
402 | * settings to phy autonegotiation advertisements for the | |
403 | * BASE-T1 Autonegotiation Advertisement [31:16] Register. | |
404 | */ | |
405 | static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising) | |
406 | { | |
407 | u32 result = 0; | |
408 | ||
409 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising)) | |
410 | result |= MDIO_AN_T1_ADV_M_B10L; | |
411 | ||
412 | return result; | |
413 | } | |
414 | ||
14e47d1f OR |
415 | /** |
416 | * mii_eee_cap1_mod_linkmode_t() | |
417 | * @adv: target the linkmode advertisement settings | |
418 | * @val: register value | |
419 | * | |
420 | * A function that translates value of following registers to the linkmode: | |
421 | * IEEE 802.3-2018 45.2.3.10 "EEE control and capability 1" register (3.20) | |
422 | * IEEE 802.3-2018 45.2.7.13 "EEE advertisement 1" register (7.60) | |
423 | * IEEE 802.3-2018 45.2.7.14 "EEE "link partner ability 1 register (7.61) | |
424 | */ | |
425 | static inline void mii_eee_cap1_mod_linkmode_t(unsigned long *adv, u32 val) | |
426 | { | |
427 | linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, | |
428 | adv, val & MDIO_EEE_100TX); | |
429 | linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, | |
430 | adv, val & MDIO_EEE_1000T); | |
431 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, | |
432 | adv, val & MDIO_EEE_10GT); | |
433 | linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, | |
434 | adv, val & MDIO_EEE_1000KX); | |
435 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, | |
436 | adv, val & MDIO_EEE_10GKX4); | |
437 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, | |
438 | adv, val & MDIO_EEE_10GKR); | |
439 | } | |
440 | ||
022c3f87 OR |
441 | /** |
442 | * linkmode_to_mii_eee_cap1_t() | |
443 | * @adv: the linkmode advertisement settings | |
444 | * | |
445 | * A function that translates linkmode to value for IEEE 802.3-2018 45.2.7.13 | |
446 | * "EEE advertisement 1" register (7.60) | |
447 | */ | |
448 | static inline u32 linkmode_to_mii_eee_cap1_t(unsigned long *adv) | |
449 | { | |
450 | u32 result = 0; | |
451 | ||
452 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, adv)) | |
453 | result |= MDIO_EEE_100TX; | |
454 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, adv)) | |
455 | result |= MDIO_EEE_1000T; | |
456 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, adv)) | |
457 | result |= MDIO_EEE_10GT; | |
458 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, adv)) | |
459 | result |= MDIO_EEE_1000KX; | |
460 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, adv)) | |
461 | result |= MDIO_EEE_10GKX4; | |
462 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, adv)) | |
463 | result |= MDIO_EEE_10GKR; | |
464 | ||
465 | return result; | |
466 | } | |
467 | ||
468 | /** | |
469 | * mii_10base_t1_adv_mod_linkmode_t() | |
470 | * @adv: linkmode advertisement settings | |
471 | * @val: register value | |
472 | * | |
473 | * A function that translates IEEE 802.3cg-2019 45.2.7.26 "10BASE-T1 AN status" | |
474 | * register (7.527) value to the linkmode. | |
475 | */ | |
476 | static inline void mii_10base_t1_adv_mod_linkmode_t(unsigned long *adv, u16 val) | |
477 | { | |
478 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, | |
479 | adv, val & MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L); | |
480 | } | |
481 | ||
482 | /** | |
483 | * linkmode_adv_to_mii_10base_t1_t() | |
484 | * @adv: linkmode advertisement settings | |
485 | * | |
486 | * A function that translates the linkmode to IEEE 802.3cg-2019 45.2.7.25 | |
487 | * "10BASE-T1 AN control" register (7.526) value. | |
488 | */ | |
489 | static inline u32 linkmode_adv_to_mii_10base_t1_t(unsigned long *adv) | |
490 | { | |
491 | u32 result = 0; | |
492 | ||
493 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, adv)) | |
494 | result |= MDIO_AN_10BT1_AN_CTRL_ADV_EEE_T1L; | |
495 | ||
496 | return result; | |
497 | } | |
498 | ||
e9261467 RKO |
499 | /** |
500 | * mii_c73_mod_linkmode - convert a Clause 73 advertisement to linkmodes | |
501 | * @adv: linkmode advertisement setting | |
502 | * @lpa: array of three u16s containing the advertisement | |
503 | * | |
504 | * Convert an IEEE 802.3 Clause 73 advertisement to ethtool link modes. | |
505 | */ | |
506 | static inline void mii_c73_mod_linkmode(unsigned long *adv, u16 *lpa) | |
507 | { | |
508 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, | |
509 | adv, lpa[0] & MDIO_AN_C73_0_PAUSE); | |
510 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, | |
511 | adv, lpa[0] & MDIO_AN_C73_0_ASM_DIR); | |
512 | linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, | |
513 | adv, lpa[1] & MDIO_AN_C73_1_1000BASE_KX); | |
514 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, | |
515 | adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KX4); | |
516 | linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, | |
517 | adv, lpa[1] & MDIO_AN_C73_1_40GBASE_KR4); | |
518 | linkmode_mod_bit(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, | |
519 | adv, lpa[1] & MDIO_AN_C73_1_40GBASE_CR4); | |
520 | /* 100GBASE_CR10 and 100GBASE_KP4 not implemented */ | |
521 | linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, | |
522 | adv, lpa[1] & MDIO_AN_C73_1_100GBASE_KR4); | |
523 | linkmode_mod_bit(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, | |
524 | adv, lpa[1] & MDIO_AN_C73_1_100GBASE_CR4); | |
525 | /* 25GBASE_R_S not implemented */ | |
526 | /* The 25GBASE_R bit can be used for 25Gbase KR or CR modes */ | |
527 | linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, | |
528 | adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R); | |
529 | linkmode_mod_bit(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, | |
530 | adv, lpa[1] & MDIO_AN_C73_1_25GBASE_R); | |
531 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, | |
532 | adv, lpa[1] & MDIO_AN_C73_1_10GBASE_KR); | |
533 | linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT, | |
534 | adv, lpa[2] & MDIO_AN_C73_2_2500BASE_KX); | |
535 | /* 5GBASE_KR not implemented */ | |
536 | } | |
537 | ||
34dc08e4 RK |
538 | int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); |
539 | int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
e6a45700 RKO |
540 | int __mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, |
541 | u16 set); | |
6cc7cf81 RK |
542 | int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, |
543 | u16 mask, u16 set); | |
34dc08e4 | 544 | |
bac83c65 AL |
545 | int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); |
546 | int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum); | |
547 | int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
548 | int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
6cc7cf81 RK |
549 | int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, |
550 | u16 set); | |
79365f36 RKO |
551 | int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, |
552 | u16 mask, u16 set); | |
4e4aafcd AL |
553 | int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum); |
554 | int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum); | |
1d914d51 AL |
555 | int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad, |
556 | u32 regnum); | |
4e4aafcd AL |
557 | int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum, |
558 | u16 val); | |
559 | int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum, | |
560 | u16 val); | |
1d914d51 AL |
561 | int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad, |
562 | u32 regnum, u16 val); | |
4e4aafcd AL |
563 | int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum, |
564 | u16 mask, u16 set); | |
565 | ||
566 | int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad, | |
567 | u32 regnum, u16 mask, u16 set); | |
bac83c65 | 568 | |
e6a45700 RKO |
569 | static inline int __mdiodev_read(struct mdio_device *mdiodev, u32 regnum) |
570 | { | |
571 | return __mdiobus_read(mdiodev->bus, mdiodev->addr, regnum); | |
572 | } | |
573 | ||
574 | static inline int __mdiodev_write(struct mdio_device *mdiodev, u32 regnum, | |
575 | u16 val) | |
576 | { | |
577 | return __mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val); | |
578 | } | |
579 | ||
580 | static inline int __mdiodev_modify(struct mdio_device *mdiodev, u32 regnum, | |
581 | u16 mask, u16 set) | |
582 | { | |
583 | return __mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set); | |
584 | } | |
585 | ||
586 | static inline int __mdiodev_modify_changed(struct mdio_device *mdiodev, | |
587 | u32 regnum, u16 mask, u16 set) | |
588 | { | |
589 | return __mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum, | |
590 | mask, set); | |
591 | } | |
592 | ||
0ebecb26 SA |
593 | static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum) |
594 | { | |
595 | return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum); | |
596 | } | |
597 | ||
598 | static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum, | |
599 | u16 val) | |
600 | { | |
601 | return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val); | |
602 | } | |
603 | ||
604 | static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum, | |
605 | u16 mask, u16 set) | |
606 | { | |
607 | return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set); | |
608 | } | |
609 | ||
610 | static inline int mdiodev_modify_changed(struct mdio_device *mdiodev, | |
611 | u32 regnum, u16 mask, u16 set) | |
612 | { | |
613 | return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum, | |
614 | mask, set); | |
615 | } | |
616 | ||
4e4aafcd AL |
617 | static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad, |
618 | u32 regnum, u16 mask, u16 set) | |
90ce665c | 619 | { |
4e4aafcd AL |
620 | return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum, |
621 | mask, set); | |
90ce665c RK |
622 | } |
623 | ||
4e4aafcd AL |
624 | static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev, |
625 | int devad, u32 regnum, u16 mask, | |
626 | u16 set) | |
90ce665c | 627 | { |
4e4aafcd AL |
628 | return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad, |
629 | regnum, mask, set); | |
2dab432c IC |
630 | } |
631 | ||
f6479ea4 RKO |
632 | static inline int mdiodev_c45_read(struct mdio_device *mdiodev, int devad, |
633 | u16 regnum) | |
634 | { | |
635 | return mdiobus_c45_read(mdiodev->bus, mdiodev->addr, devad, regnum); | |
636 | } | |
637 | ||
638 | static inline int mdiodev_c45_write(struct mdio_device *mdiodev, u32 devad, | |
639 | u16 regnum, u16 val) | |
640 | { | |
641 | return mdiobus_c45_write(mdiodev->bus, mdiodev->addr, devad, regnum, | |
642 | val); | |
643 | } | |
644 | ||
7f854420 AL |
645 | int mdiobus_register_device(struct mdio_device *mdiodev); |
646 | int mdiobus_unregister_device(struct mdio_device *mdiodev); | |
647 | bool mdiobus_is_registered_device(struct mii_bus *bus, int addr); | |
648 | struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr); | |
649 | ||
a9049e0c | 650 | /** |
b70f43a1 | 651 | * mdio_module_driver() - Helper macro for registering mdio drivers |
39097ab6 | 652 | * @_mdio_driver: driver to register |
a9049e0c AL |
653 | * |
654 | * Helper macro for MDIO drivers which do not do anything special in module | |
655 | * init/exit. Each module may only use this macro once, and calling it | |
656 | * replaces module_init() and module_exit(). | |
657 | */ | |
658 | #define mdio_module_driver(_mdio_driver) \ | |
659 | static int __init mdio_module_init(void) \ | |
660 | { \ | |
661 | return mdio_driver_register(&_mdio_driver); \ | |
662 | } \ | |
663 | module_init(mdio_module_init); \ | |
664 | static void __exit mdio_module_exit(void) \ | |
665 | { \ | |
666 | mdio_driver_unregister(&_mdio_driver); \ | |
667 | } \ | |
668 | module_exit(mdio_module_exit) | |
669 | ||
52c94dfa | 670 | #endif /* __LINUX_MDIO_H__ */ |