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 | |
90ce665c RK |
13 | /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit |
14 | * IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. | |
15 | */ | |
16 | #define MII_ADDR_C45 (1<<30) | |
17 | #define MII_DEVADDR_C45_SHIFT 16 | |
c6af53f0 | 18 | #define MII_DEVADDR_C45_MASK GENMASK(20, 16) |
90ce665c RK |
19 | #define MII_REGADDR_C45_MASK GENMASK(15, 0) |
20 | ||
bafbdd52 | 21 | struct gpio_desc; |
bac83c65 | 22 | struct mii_bus; |
33374098 | 23 | struct reset_control; |
9c717758 | 24 | |
9a6f2b01 AL |
25 | /* Multiple levels of nesting are possible. However typically this is |
26 | * limited to nested DSA like layer, a MUX layer, and the normal | |
27 | * user. Instead of trying to handle the general case, just define | |
28 | * these cases. | |
29 | */ | |
30 | enum mdio_mutex_lock_class { | |
31 | MDIO_MUTEX_NORMAL, | |
32 | MDIO_MUTEX_MUX, | |
33 | MDIO_MUTEX_NESTED, | |
34 | }; | |
35 | ||
e5a03bfd AL |
36 | struct mdio_device { |
37 | struct device dev; | |
a9049e0c | 38 | |
e5a03bfd | 39 | struct mii_bus *bus; |
648ea013 | 40 | char modalias[MDIO_NAME_SIZE]; |
711fdba3 | 41 | |
e76a4957 | 42 | int (*bus_match)(struct device *dev, struct device_driver *drv); |
711fdba3 AL |
43 | void (*device_free)(struct mdio_device *mdiodev); |
44 | void (*device_remove)(struct mdio_device *mdiodev); | |
45 | ||
e5a03bfd AL |
46 | /* Bus address of the MDIO device (0-31) */ |
47 | int addr; | |
7f854420 | 48 | int flags; |
6110ed2d | 49 | struct gpio_desc *reset_gpio; |
71dd6c0d | 50 | struct reset_control *reset_ctrl; |
04f629f7 RL |
51 | unsigned int reset_assert_delay; |
52 | unsigned int reset_deassert_delay; | |
e5a03bfd | 53 | }; |
7eab14de AL |
54 | |
55 | static inline struct mdio_device *to_mdio_device(const struct device *dev) | |
56 | { | |
57 | return container_of(dev, struct mdio_device, dev); | |
58 | } | |
e5a03bfd | 59 | |
a9049e0c AL |
60 | /* struct mdio_driver_common: Common to all MDIO drivers */ |
61 | struct mdio_driver_common { | |
62 | struct device_driver driver; | |
63 | int flags; | |
64 | }; | |
7f854420 | 65 | #define MDIO_DEVICE_FLAG_PHY 1 |
7eab14de AL |
66 | |
67 | static inline struct mdio_driver_common * | |
68 | to_mdio_common_driver(const struct device_driver *driver) | |
69 | { | |
70 | return container_of(driver, struct mdio_driver_common, driver); | |
71 | } | |
a9049e0c AL |
72 | |
73 | /* struct mdio_driver: Generic MDIO driver */ | |
74 | struct mdio_driver { | |
75 | struct mdio_driver_common mdiodrv; | |
76 | ||
77 | /* | |
78 | * Called during discovery. Used to set | |
79 | * up device-specific structures, if any | |
80 | */ | |
81 | int (*probe)(struct mdio_device *mdiodev); | |
82 | ||
83 | /* Clears up any memory if needed */ | |
84 | void (*remove)(struct mdio_device *mdiodev); | |
cf957997 VO |
85 | |
86 | /* Quiesces the device on system shutdown, turns off interrupts etc */ | |
87 | void (*shutdown)(struct mdio_device *mdiodev); | |
a9049e0c | 88 | }; |
7eab14de AL |
89 | |
90 | static inline struct mdio_driver * | |
91 | to_mdio_driver(const struct device_driver *driver) | |
92 | { | |
93 | return container_of(to_mdio_common_driver(driver), struct mdio_driver, | |
94 | mdiodrv); | |
95 | } | |
a9049e0c | 96 | |
36b1a2fc HK |
97 | /* device driver data */ |
98 | static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data) | |
99 | { | |
100 | dev_set_drvdata(&mdio->dev, data); | |
101 | } | |
102 | ||
103 | static inline void *mdiodev_get_drvdata(struct mdio_device *mdio) | |
104 | { | |
105 | return dev_get_drvdata(&mdio->dev); | |
106 | } | |
107 | ||
a9049e0c AL |
108 | void mdio_device_free(struct mdio_device *mdiodev); |
109 | struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr); | |
110 | int mdio_device_register(struct mdio_device *mdiodev); | |
111 | void mdio_device_remove(struct mdio_device *mdiodev); | |
bafbdd52 | 112 | void mdio_device_reset(struct mdio_device *mdiodev, int value); |
a9049e0c AL |
113 | int mdio_driver_register(struct mdio_driver *drv); |
114 | void mdio_driver_unregister(struct mdio_driver *drv); | |
648ea013 | 115 | int mdio_device_bus_match(struct device *dev, struct device_driver *drv); |
7f854420 | 116 | |
52c94dfa BH |
117 | static inline bool mdio_phy_id_is_c45(int phy_id) |
118 | { | |
119 | return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK); | |
120 | } | |
121 | ||
122 | static inline __u16 mdio_phy_id_prtad(int phy_id) | |
123 | { | |
124 | return (phy_id & MDIO_PHY_ID_PRTAD) >> 5; | |
125 | } | |
126 | ||
127 | static inline __u16 mdio_phy_id_devad(int phy_id) | |
128 | { | |
129 | return phy_id & MDIO_PHY_ID_DEVAD; | |
130 | } | |
131 | ||
1b1c2e95 BH |
132 | /** |
133 | * struct mdio_if_info - Ethernet controller MDIO interface | |
134 | * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown) | |
135 | * @mmds: Mask of MMDs expected to be present in the PHY. This must be | |
136 | * non-zero unless @prtad = %MDIO_PRTAD_NONE. | |
137 | * @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then | |
138 | * MII register access will be passed through with @devad = | |
139 | * %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to | |
140 | * commonly used clause 22 registers will be translated into | |
141 | * clause 45 registers. | |
142 | * @dev: Net device structure | |
143 | * @mdio_read: Register read function; returns value or negative error code | |
144 | * @mdio_write: Register write function; returns 0 or negative error code | |
145 | */ | |
146 | struct mdio_if_info { | |
147 | int prtad; | |
23428e6b | 148 | u32 mmds; |
1b1c2e95 BH |
149 | unsigned mode_support; |
150 | ||
151 | struct net_device *dev; | |
152 | int (*mdio_read)(struct net_device *dev, int prtad, int devad, | |
153 | u16 addr); | |
154 | int (*mdio_write)(struct net_device *dev, int prtad, int devad, | |
155 | u16 addr, u16 val); | |
156 | }; | |
157 | ||
158 | #define MDIO_PRTAD_NONE (-1) | |
159 | #define MDIO_DEVAD_NONE (-1) | |
9c717758 BH |
160 | #define MDIO_SUPPORTS_C22 1 |
161 | #define MDIO_SUPPORTS_C45 2 | |
1b1c2e95 BH |
162 | #define MDIO_EMULATE_C22 4 |
163 | ||
164 | struct ethtool_cmd; | |
165 | struct ethtool_pauseparam; | |
166 | extern int mdio45_probe(struct mdio_if_info *mdio, int prtad); | |
167 | extern int mdio_set_flag(const struct mdio_if_info *mdio, | |
168 | int prtad, int devad, u16 addr, int mask, | |
169 | bool sense); | |
170 | extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds); | |
171 | extern int mdio45_nway_restart(const struct mdio_if_info *mdio); | |
172 | extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio, | |
173 | struct ethtool_cmd *ecmd, | |
174 | u32 npage_adv, u32 npage_lpa); | |
8e4881aa PR |
175 | extern void |
176 | mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio, | |
177 | struct ethtool_link_ksettings *cmd, | |
178 | u32 npage_adv, u32 npage_lpa); | |
1b1c2e95 BH |
179 | |
180 | /** | |
181 | * mdio45_ethtool_gset - get settings for ETHTOOL_GSET | |
182 | * @mdio: MDIO interface | |
183 | * @ecmd: Ethtool request structure | |
184 | * | |
185 | * Since the CSRs for auto-negotiation using next pages are not fully | |
186 | * standardised, this function does not attempt to decode them. Use | |
187 | * mdio45_ethtool_gset_npage() to specify advertisement bits from next | |
188 | * pages. | |
189 | */ | |
190 | static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio, | |
191 | struct ethtool_cmd *ecmd) | |
192 | { | |
193 | mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0); | |
194 | } | |
195 | ||
8e4881aa PR |
196 | /** |
197 | * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS | |
198 | * @mdio: MDIO interface | |
199 | * @cmd: Ethtool request structure | |
200 | * | |
201 | * Since the CSRs for auto-negotiation using next pages are not fully | |
202 | * standardised, this function does not attempt to decode them. Use | |
203 | * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits | |
204 | * from next pages. | |
205 | */ | |
206 | static inline void | |
207 | mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio, | |
208 | struct ethtool_link_ksettings *cmd) | |
209 | { | |
210 | mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0); | |
211 | } | |
212 | ||
1b1c2e95 BH |
213 | extern int mdio_mii_ioctl(const struct mdio_if_info *mdio, |
214 | struct mii_ioctl_data *mii_data, int cmd); | |
215 | ||
b32607dd AB |
216 | /** |
217 | * mmd_eee_cap_to_ethtool_sup_t | |
218 | * @eee_cap: value of the MMD EEE Capability register | |
219 | * | |
220 | * A small helper function that translates MMD EEE Capability (3.20) bits | |
221 | * to ethtool supported settings. | |
222 | */ | |
223 | static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap) | |
224 | { | |
225 | u32 supported = 0; | |
226 | ||
227 | if (eee_cap & MDIO_EEE_100TX) | |
228 | supported |= SUPPORTED_100baseT_Full; | |
229 | if (eee_cap & MDIO_EEE_1000T) | |
230 | supported |= SUPPORTED_1000baseT_Full; | |
231 | if (eee_cap & MDIO_EEE_10GT) | |
232 | supported |= SUPPORTED_10000baseT_Full; | |
233 | if (eee_cap & MDIO_EEE_1000KX) | |
234 | supported |= SUPPORTED_1000baseKX_Full; | |
235 | if (eee_cap & MDIO_EEE_10GKX4) | |
236 | supported |= SUPPORTED_10000baseKX4_Full; | |
237 | if (eee_cap & MDIO_EEE_10GKR) | |
238 | supported |= SUPPORTED_10000baseKR_Full; | |
239 | ||
240 | return supported; | |
241 | } | |
242 | ||
243 | /** | |
244 | * mmd_eee_adv_to_ethtool_adv_t | |
245 | * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers | |
246 | * | |
247 | * A small helper function that translates the MMD EEE Advertisment (7.60) | |
248 | * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement | |
249 | * settings. | |
250 | */ | |
251 | static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv) | |
252 | { | |
253 | u32 adv = 0; | |
254 | ||
255 | if (eee_adv & MDIO_EEE_100TX) | |
256 | adv |= ADVERTISED_100baseT_Full; | |
257 | if (eee_adv & MDIO_EEE_1000T) | |
258 | adv |= ADVERTISED_1000baseT_Full; | |
259 | if (eee_adv & MDIO_EEE_10GT) | |
260 | adv |= ADVERTISED_10000baseT_Full; | |
261 | if (eee_adv & MDIO_EEE_1000KX) | |
262 | adv |= ADVERTISED_1000baseKX_Full; | |
263 | if (eee_adv & MDIO_EEE_10GKX4) | |
264 | adv |= ADVERTISED_10000baseKX4_Full; | |
265 | if (eee_adv & MDIO_EEE_10GKR) | |
266 | adv |= ADVERTISED_10000baseKR_Full; | |
267 | ||
268 | return adv; | |
269 | } | |
270 | ||
271 | /** | |
272 | * ethtool_adv_to_mmd_eee_adv_t | |
273 | * @adv: the ethtool advertisement settings | |
274 | * | |
275 | * A small helper function that translates ethtool advertisement settings | |
276 | * to EEE advertisements for the MMD EEE Advertisement (7.60) and | |
277 | * MMD EEE Link Partner Ability (7.61) registers. | |
278 | */ | |
279 | static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv) | |
280 | { | |
281 | u16 reg = 0; | |
282 | ||
283 | if (adv & ADVERTISED_100baseT_Full) | |
284 | reg |= MDIO_EEE_100TX; | |
285 | if (adv & ADVERTISED_1000baseT_Full) | |
286 | reg |= MDIO_EEE_1000T; | |
287 | if (adv & ADVERTISED_10000baseT_Full) | |
288 | reg |= MDIO_EEE_10GT; | |
289 | if (adv & ADVERTISED_1000baseKX_Full) | |
290 | reg |= MDIO_EEE_1000KX; | |
291 | if (adv & ADVERTISED_10000baseKX4_Full) | |
292 | reg |= MDIO_EEE_10GKX4; | |
293 | if (adv & ADVERTISED_10000baseKR_Full) | |
294 | reg |= MDIO_EEE_10GKR; | |
295 | ||
296 | return reg; | |
297 | } | |
298 | ||
744e458a HK |
299 | /** |
300 | * linkmode_adv_to_mii_10gbt_adv_t | |
301 | * @advertising: the linkmode advertisement settings | |
302 | * | |
303 | * A small helper function that translates linkmode advertisement | |
304 | * settings to phy autonegotiation advertisements for the C45 | |
305 | * 10GBASE-T AN CONTROL (7.32) register. | |
306 | */ | |
307 | static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising) | |
308 | { | |
309 | u32 result = 0; | |
310 | ||
311 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, | |
312 | advertising)) | |
313 | result |= MDIO_AN_10GBT_CTRL_ADV2_5G; | |
314 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, | |
315 | advertising)) | |
316 | result |= MDIO_AN_10GBT_CTRL_ADV5G; | |
317 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, | |
318 | advertising)) | |
319 | result |= MDIO_AN_10GBT_CTRL_ADV10G; | |
320 | ||
321 | return result; | |
322 | } | |
323 | ||
9004a14c HK |
324 | /** |
325 | * mii_10gbt_stat_mod_linkmode_lpa_t | |
326 | * @advertising: target the linkmode advertisement settings | |
39097ab6 | 327 | * @lpa: value of the C45 10GBASE-T AN STATUS register |
9004a14c HK |
328 | * |
329 | * A small helper function that translates C45 10GBASE-T AN STATUS register bits | |
330 | * to linkmode advertisement settings. Other bits in advertising aren't changed. | |
331 | */ | |
332 | static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising, | |
333 | u32 lpa) | |
334 | { | |
335 | linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, | |
336 | advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G); | |
337 | linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, | |
338 | advertising, lpa & MDIO_AN_10GBT_STAT_LP5G); | |
339 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT, | |
340 | advertising, lpa & MDIO_AN_10GBT_STAT_LP10G); | |
341 | } | |
342 | ||
3da8ffd8 AT |
343 | /** |
344 | * mii_t1_adv_l_mod_linkmode_t | |
345 | * @advertising: target the linkmode advertisement settings | |
346 | * @lpa: value of the BASE-T1 Autonegotiation Advertisement [15:0] Register | |
347 | * | |
348 | * A small helper function that translates BASE-T1 Autonegotiation | |
349 | * Advertisement [15:0] Register bits to linkmode advertisement settings. | |
350 | * Other bits in advertising aren't changed. | |
351 | */ | |
352 | static inline void mii_t1_adv_l_mod_linkmode_t(unsigned long *advertising, u32 lpa) | |
353 | { | |
354 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising, | |
355 | lpa & MDIO_AN_T1_ADV_L_PAUSE_CAP); | |
356 | linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising, | |
357 | lpa & MDIO_AN_T1_ADV_L_PAUSE_ASYM); | |
358 | } | |
359 | ||
360 | /** | |
361 | * mii_t1_adv_m_mod_linkmode_t | |
362 | * @advertising: target the linkmode advertisement settings | |
363 | * @lpa: value of the BASE-T1 Autonegotiation Advertisement [31:16] Register | |
364 | * | |
365 | * A small helper function that translates BASE-T1 Autonegotiation | |
366 | * Advertisement [31:16] Register bits to linkmode advertisement settings. | |
367 | * Other bits in advertising aren't changed. | |
368 | */ | |
369 | static inline void mii_t1_adv_m_mod_linkmode_t(unsigned long *advertising, u32 lpa) | |
370 | { | |
371 | linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, | |
372 | advertising, lpa & MDIO_AN_T1_ADV_M_B10L); | |
373 | } | |
374 | ||
375 | /** | |
376 | * linkmode_adv_to_mii_t1_adv_l_t | |
377 | * @advertising: the linkmode advertisement settings | |
378 | * | |
379 | * A small helper function that translates linkmode advertisement | |
380 | * settings to phy autonegotiation advertisements for the | |
381 | * BASE-T1 Autonegotiation Advertisement [15:0] Register. | |
382 | */ | |
383 | static inline u32 linkmode_adv_to_mii_t1_adv_l_t(unsigned long *advertising) | |
384 | { | |
385 | u32 result = 0; | |
386 | ||
387 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertising)) | |
388 | result |= MDIO_AN_T1_ADV_L_PAUSE_CAP; | |
389 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertising)) | |
390 | result |= MDIO_AN_T1_ADV_L_PAUSE_ASYM; | |
391 | ||
392 | return result; | |
393 | } | |
394 | ||
395 | /** | |
396 | * linkmode_adv_to_mii_t1_adv_m_t | |
397 | * @advertising: the linkmode advertisement settings | |
398 | * | |
399 | * A small helper function that translates linkmode advertisement | |
400 | * settings to phy autonegotiation advertisements for the | |
401 | * BASE-T1 Autonegotiation Advertisement [31:16] Register. | |
402 | */ | |
403 | static inline u32 linkmode_adv_to_mii_t1_adv_m_t(unsigned long *advertising) | |
404 | { | |
405 | u32 result = 0; | |
406 | ||
407 | if (linkmode_test_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, advertising)) | |
408 | result |= MDIO_AN_T1_ADV_M_B10L; | |
409 | ||
410 | return result; | |
411 | } | |
412 | ||
34dc08e4 RK |
413 | int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); |
414 | int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
6cc7cf81 RK |
415 | int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, |
416 | u16 mask, u16 set); | |
34dc08e4 | 417 | |
bac83c65 AL |
418 | int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); |
419 | int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum); | |
420 | int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
421 | int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val); | |
6cc7cf81 RK |
422 | int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, |
423 | u16 set); | |
79365f36 RKO |
424 | int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum, |
425 | u16 mask, u16 set); | |
bac83c65 | 426 | |
0ebecb26 SA |
427 | static inline int mdiodev_read(struct mdio_device *mdiodev, u32 regnum) |
428 | { | |
429 | return mdiobus_read(mdiodev->bus, mdiodev->addr, regnum); | |
430 | } | |
431 | ||
432 | static inline int mdiodev_write(struct mdio_device *mdiodev, u32 regnum, | |
433 | u16 val) | |
434 | { | |
435 | return mdiobus_write(mdiodev->bus, mdiodev->addr, regnum, val); | |
436 | } | |
437 | ||
438 | static inline int mdiodev_modify(struct mdio_device *mdiodev, u32 regnum, | |
439 | u16 mask, u16 set) | |
440 | { | |
441 | return mdiobus_modify(mdiodev->bus, mdiodev->addr, regnum, mask, set); | |
442 | } | |
443 | ||
444 | static inline int mdiodev_modify_changed(struct mdio_device *mdiodev, | |
445 | u32 regnum, u16 mask, u16 set) | |
446 | { | |
447 | return mdiobus_modify_changed(mdiodev->bus, mdiodev->addr, regnum, | |
448 | mask, set); | |
449 | } | |
450 | ||
90ce665c RK |
451 | static inline u32 mdiobus_c45_addr(int devad, u16 regnum) |
452 | { | |
453 | return MII_ADDR_C45 | devad << MII_DEVADDR_C45_SHIFT | regnum; | |
454 | } | |
455 | ||
c6af53f0 RKO |
456 | static inline u16 mdiobus_c45_regad(u32 regnum) |
457 | { | |
458 | return FIELD_GET(MII_REGADDR_C45_MASK, regnum); | |
459 | } | |
460 | ||
461 | static inline u16 mdiobus_c45_devad(u32 regnum) | |
462 | { | |
463 | return FIELD_GET(MII_DEVADDR_C45_MASK, regnum); | |
464 | } | |
465 | ||
90ce665c RK |
466 | static inline int __mdiobus_c45_read(struct mii_bus *bus, int prtad, int devad, |
467 | u16 regnum) | |
468 | { | |
469 | return __mdiobus_read(bus, prtad, mdiobus_c45_addr(devad, regnum)); | |
470 | } | |
471 | ||
472 | static inline int __mdiobus_c45_write(struct mii_bus *bus, int prtad, int devad, | |
473 | u16 regnum, u16 val) | |
474 | { | |
475 | return __mdiobus_write(bus, prtad, mdiobus_c45_addr(devad, regnum), | |
476 | val); | |
477 | } | |
478 | ||
479 | static inline int mdiobus_c45_read(struct mii_bus *bus, int prtad, int devad, | |
480 | u16 regnum) | |
481 | { | |
482 | return mdiobus_read(bus, prtad, mdiobus_c45_addr(devad, regnum)); | |
483 | } | |
484 | ||
2dab432c IC |
485 | static inline int mdiobus_c45_write(struct mii_bus *bus, int prtad, int devad, |
486 | u16 regnum, u16 val) | |
487 | { | |
488 | return mdiobus_write(bus, prtad, mdiobus_c45_addr(devad, regnum), val); | |
489 | } | |
490 | ||
7f854420 AL |
491 | int mdiobus_register_device(struct mdio_device *mdiodev); |
492 | int mdiobus_unregister_device(struct mdio_device *mdiodev); | |
493 | bool mdiobus_is_registered_device(struct mii_bus *bus, int addr); | |
494 | struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr); | |
495 | ||
a9049e0c | 496 | /** |
b70f43a1 | 497 | * mdio_module_driver() - Helper macro for registering mdio drivers |
39097ab6 | 498 | * @_mdio_driver: driver to register |
a9049e0c AL |
499 | * |
500 | * Helper macro for MDIO drivers which do not do anything special in module | |
501 | * init/exit. Each module may only use this macro once, and calling it | |
502 | * replaces module_init() and module_exit(). | |
503 | */ | |
504 | #define mdio_module_driver(_mdio_driver) \ | |
505 | static int __init mdio_module_init(void) \ | |
506 | { \ | |
507 | return mdio_driver_register(&_mdio_driver); \ | |
508 | } \ | |
509 | module_init(mdio_module_init); \ | |
510 | static void __exit mdio_module_exit(void) \ | |
511 | { \ | |
512 | mdio_driver_unregister(&_mdio_driver); \ | |
513 | } \ | |
514 | module_exit(mdio_module_exit) | |
515 | ||
52c94dfa | 516 | #endif /* __LINUX_MDIO_H__ */ |