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 | |
52c94dfa BH |
109 | static 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 | ||
114 | static inline __u16 mdio_phy_id_prtad(int phy_id) | |
115 | { | |
116 | return (phy_id & MDIO_PHY_ID_PRTAD) >> 5; | |
117 | } | |
118 | ||
119 | static 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 | */ | |
138 | struct 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 | ||
156 | struct ethtool_cmd; | |
157 | struct ethtool_pauseparam; | |
158 | extern int mdio45_probe(struct mdio_if_info *mdio, int prtad); | |
159 | extern int mdio_set_flag(const struct mdio_if_info *mdio, | |
160 | int prtad, int devad, u16 addr, int mask, | |
161 | bool sense); | |
162 | extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds); | |
163 | extern int mdio45_nway_restart(const struct mdio_if_info *mdio); | |
164 | extern 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 |
167 | extern void |
168 | mdio45_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 | */ | |
182 | static 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 | */ | |
198 | static inline void | |
199 | mdio45_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 |
205 | extern 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 | */ | |
215 | static 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 | */ | |
243 | static 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 | */ | |
271 | static 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 | */ | |
299 | static 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 | */ | |
324 | static 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 | */ | |
344 | static 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 | */ | |
361 | static 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 | */ | |
375 | static 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 | */ | |
395 | static 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 | */ | |
415 | static 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 | */ | |
438 | static 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 | */ | |
466 | static 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 | */ | |
479 | static 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 |
489 | int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); |
490 | int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
6cc7cf81 RK |
491 | int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, |
492 | u16 mask, u16 set); | |
34dc08e4 | 493 | |
bac83c65 AL |
494 | int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); |
495 | int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum); | |
496 | int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
497 | int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
6cc7cf81 RK |
498 | int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, |
499 | u16 set); | |
79365f36 RKO |
500 | int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, |
501 | u16 mask, u16 set); | |
4e4aafcd AL |
502 | int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum); |
503 | int mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum); | |
1d914d51 AL |
504 | int mdiobus_c45_read_nested(struct mii_bus *bus, int addr, int devad, |
505 | u32 regnum); | |
4e4aafcd AL |
506 | int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum, |
507 | u16 val); | |
508 | int mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum, | |
509 | u16 val); | |
1d914d51 AL |
510 | int mdiobus_c45_write_nested(struct mii_bus *bus, int addr, int devad, |
511 | u32 regnum, u16 val); | |
4e4aafcd AL |
512 | int mdiobus_c45_modify(struct mii_bus *bus, int addr, int devad, u32 regnum, |
513 | u16 mask, u16 set); | |
514 | ||
515 | int mdiobus_c45_modify_changed(struct mii_bus *bus, int addr, int devad, | |
516 | u32 regnum, u16 mask, u16 set); | |
bac83c65 | 517 | |
0ebecb26 SA |
518 | static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum) |
519 | { | |
520 | return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum); | |
521 | } | |
522 | ||
523 | static 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 | ||
529 | static 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 | ||
535 | static 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 | ||
4e4aafcd AL |
542 | static inline int mdiodev_c45_modify(struct mdio_device *mdiodev, int devad, |
543 | u32 regnum, u16 mask, u16 set) | |
90ce665c | 544 | { |
4e4aafcd AL |
545 | return mdiobus_c45_modify(mdiodev->bus, mdiodev->addr, devad, regnum, |
546 | mask, set); | |
90ce665c RK |
547 | } |
548 | ||
4e4aafcd AL |
549 | static inline int mdiodev_c45_modify_changed(struct mdio_device *mdiodev, |
550 | int devad, u32 regnum, u16 mask, | |
551 | u16 set) | |
90ce665c | 552 | { |
4e4aafcd AL |
553 | return mdiobus_c45_modify_changed(mdiodev->bus, mdiodev->addr, devad, |
554 | regnum, mask, set); | |
2dab432c IC |
555 | } |
556 | ||
f6479ea4 RKO |
557 | static 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 | ||
563 | static 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 |
570 | int mdiobus_register_device(struct mdio_device *mdiodev); |
571 | int mdiobus_unregister_device(struct mdio_device *mdiodev); | |
572 | bool mdiobus_is_registered_device(struct mii_bus *bus, int addr); | |
573 | struct 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) \ | |
584 | static int __init mdio_module_init(void) \ | |
585 | { \ | |
586 | return mdio_driver_register(&_mdio_driver); \ | |
587 | } \ | |
588 | module_init(mdio_module_init); \ | |
589 | static void __exit mdio_module_exit(void) \ | |
590 | { \ | |
591 | mdio_driver_unregister(&_mdio_driver); \ | |
592 | } \ | |
593 | module_exit(mdio_module_exit) | |
594 | ||
52c94dfa | 595 | #endif /* __LINUX_MDIO_H__ */ |