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00db8189 | 1 | /* |
00db8189 AF |
2 | * Framework and drivers for configuring and reading different PHYs |
3 | * Based on code in sungem_phy.c and gianfar_phy.c | |
4 | * | |
5 | * Author: Andy Fleming | |
6 | * | |
7 | * Copyright (c) 2004 Freescale Semiconductor, Inc. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | * | |
14 | */ | |
15 | ||
16 | #ifndef __PHY_H | |
17 | #define __PHY_H | |
18 | ||
2220943a | 19 | #include <linux/compiler.h> |
00db8189 | 20 | #include <linux/spinlock.h> |
13df29f6 | 21 | #include <linux/ethtool.h> |
bac83c65 | 22 | #include <linux/mdio.h> |
13df29f6 | 23 | #include <linux/mii.h> |
3e3aaf64 | 24 | #include <linux/module.h> |
13df29f6 MR |
25 | #include <linux/timer.h> |
26 | #include <linux/workqueue.h> | |
8626d3b4 | 27 | #include <linux/mod_devicetable.h> |
00db8189 | 28 | |
60063497 | 29 | #include <linux/atomic.h> |
0ac49527 | 30 | |
e9fbdf17 | 31 | #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \ |
00db8189 AF |
32 | SUPPORTED_TP | \ |
33 | SUPPORTED_MII) | |
34 | ||
e9fbdf17 FF |
35 | #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \ |
36 | SUPPORTED_10baseT_Full) | |
37 | ||
38 | #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \ | |
39 | SUPPORTED_100baseT_Full) | |
40 | ||
41 | #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \ | |
00db8189 AF |
42 | SUPPORTED_1000baseT_Full) |
43 | ||
e9fbdf17 FF |
44 | #define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \ |
45 | PHY_100BT_FEATURES | \ | |
46 | PHY_DEFAULT_FEATURES) | |
47 | ||
48 | #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \ | |
49 | PHY_1000BT_FEATURES) | |
50 | ||
51 | ||
c5e38a94 AF |
52 | /* |
53 | * Set phydev->irq to PHY_POLL if interrupts are not supported, | |
00db8189 AF |
54 | * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if |
55 | * the attached driver handles the interrupt | |
56 | */ | |
57 | #define PHY_POLL -1 | |
58 | #define PHY_IGNORE_INTERRUPT -2 | |
59 | ||
60 | #define PHY_HAS_INTERRUPT 0x00000001 | |
1b86f702 | 61 | #define PHY_IS_INTERNAL 0x00000002 |
a9049e0c | 62 | #define MDIO_DEVICE_IS_PHY 0x80000000 |
00db8189 | 63 | |
e8a2b6a4 AF |
64 | /* Interface Mode definitions */ |
65 | typedef enum { | |
4157ef1b | 66 | PHY_INTERFACE_MODE_NA, |
735d8a18 | 67 | PHY_INTERFACE_MODE_INTERNAL, |
e8a2b6a4 AF |
68 | PHY_INTERFACE_MODE_MII, |
69 | PHY_INTERFACE_MODE_GMII, | |
70 | PHY_INTERFACE_MODE_SGMII, | |
71 | PHY_INTERFACE_MODE_TBI, | |
2cc70ba4 | 72 | PHY_INTERFACE_MODE_REVMII, |
e8a2b6a4 AF |
73 | PHY_INTERFACE_MODE_RMII, |
74 | PHY_INTERFACE_MODE_RGMII, | |
a999589c | 75 | PHY_INTERFACE_MODE_RGMII_ID, |
7d400a4c KP |
76 | PHY_INTERFACE_MODE_RGMII_RXID, |
77 | PHY_INTERFACE_MODE_RGMII_TXID, | |
4157ef1b SG |
78 | PHY_INTERFACE_MODE_RTBI, |
79 | PHY_INTERFACE_MODE_SMII, | |
898dd0bd | 80 | PHY_INTERFACE_MODE_XGMII, |
fd70f72c | 81 | PHY_INTERFACE_MODE_MOCA, |
b9d12085 | 82 | PHY_INTERFACE_MODE_QSGMII, |
572de608 | 83 | PHY_INTERFACE_MODE_TRGMII, |
55601a88 AL |
84 | PHY_INTERFACE_MODE_1000BASEX, |
85 | PHY_INTERFACE_MODE_2500BASEX, | |
86 | PHY_INTERFACE_MODE_RXAUI, | |
c125ca09 RK |
87 | PHY_INTERFACE_MODE_XAUI, |
88 | /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */ | |
89 | PHY_INTERFACE_MODE_10GKR, | |
8a2fe56e | 90 | PHY_INTERFACE_MODE_MAX, |
e8a2b6a4 AF |
91 | } phy_interface_t; |
92 | ||
1f9127ca ZB |
93 | /** |
94 | * phy_supported_speeds - return all speeds currently supported by a phy device | |
95 | * @phy: The phy device to return supported speeds of. | |
96 | * @speeds: buffer to store supported speeds in. | |
97 | * @size: size of speeds buffer. | |
98 | * | |
99 | * Description: Returns the number of supported speeds, and | |
100 | * fills the speeds * buffer with the supported speeds. If speeds buffer is | |
101 | * too small to contain * all currently supported speeds, will return as | |
102 | * many speeds as can fit. | |
103 | */ | |
104 | unsigned int phy_supported_speeds(struct phy_device *phy, | |
105 | unsigned int *speeds, | |
106 | unsigned int size); | |
107 | ||
8a2fe56e FF |
108 | /** |
109 | * It maps 'enum phy_interface_t' found in include/linux/phy.h | |
110 | * into the device tree binding of 'phy-mode', so that Ethernet | |
111 | * device driver can get phy interface from device tree. | |
112 | */ | |
113 | static inline const char *phy_modes(phy_interface_t interface) | |
114 | { | |
115 | switch (interface) { | |
116 | case PHY_INTERFACE_MODE_NA: | |
117 | return ""; | |
735d8a18 FF |
118 | case PHY_INTERFACE_MODE_INTERNAL: |
119 | return "internal"; | |
8a2fe56e FF |
120 | case PHY_INTERFACE_MODE_MII: |
121 | return "mii"; | |
122 | case PHY_INTERFACE_MODE_GMII: | |
123 | return "gmii"; | |
124 | case PHY_INTERFACE_MODE_SGMII: | |
125 | return "sgmii"; | |
126 | case PHY_INTERFACE_MODE_TBI: | |
127 | return "tbi"; | |
128 | case PHY_INTERFACE_MODE_REVMII: | |
129 | return "rev-mii"; | |
130 | case PHY_INTERFACE_MODE_RMII: | |
131 | return "rmii"; | |
132 | case PHY_INTERFACE_MODE_RGMII: | |
133 | return "rgmii"; | |
134 | case PHY_INTERFACE_MODE_RGMII_ID: | |
135 | return "rgmii-id"; | |
136 | case PHY_INTERFACE_MODE_RGMII_RXID: | |
137 | return "rgmii-rxid"; | |
138 | case PHY_INTERFACE_MODE_RGMII_TXID: | |
139 | return "rgmii-txid"; | |
140 | case PHY_INTERFACE_MODE_RTBI: | |
141 | return "rtbi"; | |
142 | case PHY_INTERFACE_MODE_SMII: | |
143 | return "smii"; | |
144 | case PHY_INTERFACE_MODE_XGMII: | |
145 | return "xgmii"; | |
fd70f72c FF |
146 | case PHY_INTERFACE_MODE_MOCA: |
147 | return "moca"; | |
b9d12085 TP |
148 | case PHY_INTERFACE_MODE_QSGMII: |
149 | return "qsgmii"; | |
572de608 SW |
150 | case PHY_INTERFACE_MODE_TRGMII: |
151 | return "trgmii"; | |
55601a88 AL |
152 | case PHY_INTERFACE_MODE_1000BASEX: |
153 | return "1000base-x"; | |
154 | case PHY_INTERFACE_MODE_2500BASEX: | |
155 | return "2500base-x"; | |
156 | case PHY_INTERFACE_MODE_RXAUI: | |
157 | return "rxaui"; | |
c125ca09 RK |
158 | case PHY_INTERFACE_MODE_XAUI: |
159 | return "xaui"; | |
160 | case PHY_INTERFACE_MODE_10GKR: | |
161 | return "10gbase-kr"; | |
8a2fe56e FF |
162 | default: |
163 | return "unknown"; | |
164 | } | |
165 | } | |
166 | ||
00db8189 | 167 | |
e8a2b6a4 | 168 | #define PHY_INIT_TIMEOUT 100000 |
00db8189 AF |
169 | #define PHY_STATE_TIME 1 |
170 | #define PHY_FORCE_TIMEOUT 10 | |
171 | #define PHY_AN_TIMEOUT 10 | |
172 | ||
e8a2b6a4 | 173 | #define PHY_MAX_ADDR 32 |
00db8189 | 174 | |
a4d00f17 | 175 | /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ |
9d9326d3 AF |
176 | #define PHY_ID_FMT "%s:%02x" |
177 | ||
4567d686 | 178 | #define MII_BUS_ID_SIZE 61 |
a4d00f17 | 179 | |
abf35df2 JG |
180 | /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit |
181 | IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */ | |
182 | #define MII_ADDR_C45 (1<<30) | |
183 | ||
313162d0 PG |
184 | struct device; |
185 | struct sk_buff; | |
186 | ||
c5e38a94 AF |
187 | /* |
188 | * The Bus class for PHYs. Devices which provide access to | |
189 | * PHYs should register using this structure | |
190 | */ | |
00db8189 | 191 | struct mii_bus { |
3e3aaf64 | 192 | struct module *owner; |
00db8189 | 193 | const char *name; |
9d9326d3 | 194 | char id[MII_BUS_ID_SIZE]; |
00db8189 | 195 | void *priv; |
ccaa953e AL |
196 | int (*read)(struct mii_bus *bus, int addr, int regnum); |
197 | int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val); | |
00db8189 AF |
198 | int (*reset)(struct mii_bus *bus); |
199 | ||
c5e38a94 AF |
200 | /* |
201 | * A lock to ensure that only one thing can read/write | |
202 | * the MDIO bus at a time | |
203 | */ | |
35b5f6b1 | 204 | struct mutex mdio_lock; |
00db8189 | 205 | |
18ee49dd | 206 | struct device *parent; |
46abc021 LB |
207 | enum { |
208 | MDIOBUS_ALLOCATED = 1, | |
209 | MDIOBUS_REGISTERED, | |
210 | MDIOBUS_UNREGISTERED, | |
211 | MDIOBUS_RELEASED, | |
212 | } state; | |
213 | struct device dev; | |
00db8189 AF |
214 | |
215 | /* list of all PHYs on bus */ | |
7f854420 | 216 | struct mdio_device *mdio_map[PHY_MAX_ADDR]; |
00db8189 | 217 | |
c6883996 | 218 | /* PHY addresses to be ignored when probing */ |
f896424c MP |
219 | u32 phy_mask; |
220 | ||
922f2dd1 FF |
221 | /* PHY addresses to ignore the TA/read failure */ |
222 | u32 phy_ignore_ta_mask; | |
223 | ||
c5e38a94 | 224 | /* |
e7f4dc35 AL |
225 | * An array of interrupts, each PHY's interrupt at the index |
226 | * matching its address | |
c5e38a94 | 227 | */ |
e7f4dc35 | 228 | int irq[PHY_MAX_ADDR]; |
69226896 RQ |
229 | |
230 | /* GPIO reset pulse width in microseconds */ | |
231 | int reset_delay_us; | |
d396e84c SS |
232 | /* RESET GPIO descriptor pointer */ |
233 | struct gpio_desc *reset_gpiod; | |
00db8189 | 234 | }; |
46abc021 | 235 | #define to_mii_bus(d) container_of(d, struct mii_bus, dev) |
00db8189 | 236 | |
eb8a54a7 TT |
237 | struct mii_bus *mdiobus_alloc_size(size_t); |
238 | static inline struct mii_bus *mdiobus_alloc(void) | |
239 | { | |
240 | return mdiobus_alloc_size(0); | |
241 | } | |
242 | ||
3e3aaf64 RK |
243 | int __mdiobus_register(struct mii_bus *bus, struct module *owner); |
244 | #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE) | |
2e888103 LB |
245 | void mdiobus_unregister(struct mii_bus *bus); |
246 | void mdiobus_free(struct mii_bus *bus); | |
6d48f44b GS |
247 | struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv); |
248 | static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev) | |
249 | { | |
250 | return devm_mdiobus_alloc_size(dev, 0); | |
251 | } | |
252 | ||
253 | void devm_mdiobus_free(struct device *dev, struct mii_bus *bus); | |
2e888103 | 254 | struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); |
2e888103 | 255 | |
e8a2b6a4 AF |
256 | #define PHY_INTERRUPT_DISABLED 0x0 |
257 | #define PHY_INTERRUPT_ENABLED 0x80000000 | |
00db8189 AF |
258 | |
259 | /* PHY state machine states: | |
260 | * | |
261 | * DOWN: PHY device and driver are not ready for anything. probe | |
262 | * should be called if and only if the PHY is in this state, | |
263 | * given that the PHY device exists. | |
264 | * - PHY driver probe function will, depending on the PHY, set | |
265 | * the state to STARTING or READY | |
266 | * | |
267 | * STARTING: PHY device is coming up, and the ethernet driver is | |
268 | * not ready. PHY drivers may set this in the probe function. | |
269 | * If they do, they are responsible for making sure the state is | |
270 | * eventually set to indicate whether the PHY is UP or READY, | |
271 | * depending on the state when the PHY is done starting up. | |
272 | * - PHY driver will set the state to READY | |
273 | * - start will set the state to PENDING | |
274 | * | |
275 | * READY: PHY is ready to send and receive packets, but the | |
276 | * controller is not. By default, PHYs which do not implement | |
277 | * probe will be set to this state by phy_probe(). If the PHY | |
278 | * driver knows the PHY is ready, and the PHY state is STARTING, | |
279 | * then it sets this STATE. | |
280 | * - start will set the state to UP | |
281 | * | |
282 | * PENDING: PHY device is coming up, but the ethernet driver is | |
283 | * ready. phy_start will set this state if the PHY state is | |
284 | * STARTING. | |
285 | * - PHY driver will set the state to UP when the PHY is ready | |
286 | * | |
287 | * UP: The PHY and attached device are ready to do work. | |
288 | * Interrupts should be started here. | |
289 | * - timer moves to AN | |
290 | * | |
291 | * AN: The PHY is currently negotiating the link state. Link is | |
292 | * therefore down for now. phy_timer will set this state when it | |
293 | * detects the state is UP. config_aneg will set this state | |
294 | * whenever called with phydev->autoneg set to AUTONEG_ENABLE. | |
295 | * - If autonegotiation finishes, but there's no link, it sets | |
296 | * the state to NOLINK. | |
297 | * - If aneg finishes with link, it sets the state to RUNNING, | |
298 | * and calls adjust_link | |
299 | * - If autonegotiation did not finish after an arbitrary amount | |
300 | * of time, autonegotiation should be tried again if the PHY | |
301 | * supports "magic" autonegotiation (back to AN) | |
302 | * - If it didn't finish, and no magic_aneg, move to FORCING. | |
303 | * | |
304 | * NOLINK: PHY is up, but not currently plugged in. | |
305 | * - If the timer notes that the link comes back, we move to RUNNING | |
306 | * - config_aneg moves to AN | |
307 | * - phy_stop moves to HALTED | |
308 | * | |
309 | * FORCING: PHY is being configured with forced settings | |
310 | * - if link is up, move to RUNNING | |
311 | * - If link is down, we drop to the next highest setting, and | |
312 | * retry (FORCING) after a timeout | |
313 | * - phy_stop moves to HALTED | |
314 | * | |
315 | * RUNNING: PHY is currently up, running, and possibly sending | |
316 | * and/or receiving packets | |
317 | * - timer will set CHANGELINK if we're polling (this ensures the | |
318 | * link state is polled every other cycle of this state machine, | |
319 | * which makes it every other second) | |
320 | * - irq will set CHANGELINK | |
321 | * - config_aneg will set AN | |
322 | * - phy_stop moves to HALTED | |
323 | * | |
324 | * CHANGELINK: PHY experienced a change in link state | |
325 | * - timer moves to RUNNING if link | |
326 | * - timer moves to NOLINK if the link is down | |
327 | * - phy_stop moves to HALTED | |
328 | * | |
329 | * HALTED: PHY is up, but no polling or interrupts are done. Or | |
330 | * PHY is in an error state. | |
331 | * | |
332 | * - phy_start moves to RESUMING | |
333 | * | |
334 | * RESUMING: PHY was halted, but now wants to run again. | |
335 | * - If we are forcing, or aneg is done, timer moves to RUNNING | |
336 | * - If aneg is not done, timer moves to AN | |
337 | * - phy_stop moves to HALTED | |
338 | */ | |
339 | enum phy_state { | |
4017b4d3 | 340 | PHY_DOWN = 0, |
00db8189 AF |
341 | PHY_STARTING, |
342 | PHY_READY, | |
343 | PHY_PENDING, | |
344 | PHY_UP, | |
345 | PHY_AN, | |
346 | PHY_RUNNING, | |
347 | PHY_NOLINK, | |
348 | PHY_FORCING, | |
349 | PHY_CHANGELINK, | |
350 | PHY_HALTED, | |
351 | PHY_RESUMING | |
352 | }; | |
353 | ||
ac28b9f8 DD |
354 | /** |
355 | * struct phy_c45_device_ids - 802.3-c45 Device Identifiers | |
356 | * @devices_in_package: Bit vector of devices present. | |
357 | * @device_ids: The device identifer for each present device. | |
358 | */ | |
359 | struct phy_c45_device_ids { | |
360 | u32 devices_in_package; | |
361 | u32 device_ids[8]; | |
362 | }; | |
c1f19b51 | 363 | |
00db8189 AF |
364 | /* phy_device: An instance of a PHY |
365 | * | |
366 | * drv: Pointer to the driver for this PHY instance | |
00db8189 | 367 | * phy_id: UID for this device found during discovery |
ac28b9f8 DD |
368 | * c45_ids: 802.3-c45 Device Identifers if is_c45. |
369 | * is_c45: Set to true if this phy uses clause 45 addressing. | |
4284b6a5 | 370 | * is_internal: Set to true if this phy is internal to a MAC. |
5a11dd7d | 371 | * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc. |
aae88261 | 372 | * has_fixups: Set to true if this phy has fixups/quirks. |
8a477a6f | 373 | * suspended: Set to true if this phy has been suspended successfully. |
a3995460 | 374 | * sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal. |
f0f9b4ed | 375 | * loopback_enabled: Set true if this phy has been loopbacked successfully. |
00db8189 AF |
376 | * state: state of the PHY for management purposes |
377 | * dev_flags: Device-specific flags used by the PHY driver. | |
00db8189 AF |
378 | * link_timeout: The number of timer firings to wait before the |
379 | * giving up on the current attempt at acquiring a link | |
380 | * irq: IRQ number of the PHY's interrupt (-1 if none) | |
381 | * phy_timer: The timer for handling the state machine | |
664fcf12 | 382 | * phy_queue: A work_queue for the phy_mac_interrupt |
00db8189 AF |
383 | * attached_dev: The attached enet driver's device instance ptr |
384 | * adjust_link: Callback for the enet controller to respond to | |
385 | * changes in the link state. | |
00db8189 | 386 | * |
114002bc FF |
387 | * speed, duplex, pause, supported, advertising, lp_advertising, |
388 | * and autoneg are used like in mii_if_info | |
00db8189 AF |
389 | * |
390 | * interrupts currently only supports enabled or disabled, | |
391 | * but could be changed in the future to support enabling | |
392 | * and disabling specific interrupts | |
393 | * | |
394 | * Contains some infrastructure for polling and interrupt | |
395 | * handling, as well as handling shifts in PHY hardware state | |
396 | */ | |
397 | struct phy_device { | |
e5a03bfd AL |
398 | struct mdio_device mdio; |
399 | ||
00db8189 AF |
400 | /* Information about the PHY type */ |
401 | /* And management functions */ | |
402 | struct phy_driver *drv; | |
403 | ||
00db8189 AF |
404 | u32 phy_id; |
405 | ||
ac28b9f8 DD |
406 | struct phy_c45_device_ids c45_ids; |
407 | bool is_c45; | |
4284b6a5 | 408 | bool is_internal; |
5a11dd7d | 409 | bool is_pseudo_fixed_link; |
b0ae009f | 410 | bool has_fixups; |
8a477a6f | 411 | bool suspended; |
a3995460 | 412 | bool sysfs_links; |
f0f9b4ed | 413 | bool loopback_enabled; |
ac28b9f8 | 414 | |
00db8189 AF |
415 | enum phy_state state; |
416 | ||
417 | u32 dev_flags; | |
418 | ||
e8a2b6a4 AF |
419 | phy_interface_t interface; |
420 | ||
c5e38a94 AF |
421 | /* |
422 | * forced speed & duplex (no autoneg) | |
00db8189 AF |
423 | * partner speed & duplex & pause (autoneg) |
424 | */ | |
425 | int speed; | |
426 | int duplex; | |
427 | int pause; | |
428 | int asym_pause; | |
429 | ||
430 | /* The most recently read link state */ | |
431 | int link; | |
432 | ||
433 | /* Enabled Interrupts */ | |
434 | u32 interrupts; | |
435 | ||
436 | /* Union of PHY and Attached devices' supported modes */ | |
437 | /* See mii.h for more info */ | |
438 | u32 supported; | |
439 | u32 advertising; | |
114002bc | 440 | u32 lp_advertising; |
00db8189 | 441 | |
d853d145 | 442 | /* Energy efficient ethernet modes which should be prohibited */ |
443 | u32 eee_broken_modes; | |
444 | ||
00db8189 AF |
445 | int autoneg; |
446 | ||
447 | int link_timeout; | |
448 | ||
2e0bc452 ZB |
449 | #ifdef CONFIG_LED_TRIGGER_PHY |
450 | struct phy_led_trigger *phy_led_triggers; | |
451 | unsigned int phy_num_led_triggers; | |
452 | struct phy_led_trigger *last_triggered; | |
453 | #endif | |
454 | ||
c5e38a94 AF |
455 | /* |
456 | * Interrupt number for this PHY | |
457 | * -1 means no interrupt | |
458 | */ | |
00db8189 AF |
459 | int irq; |
460 | ||
461 | /* private data pointer */ | |
462 | /* For use by PHYs to maintain extra state */ | |
463 | void *priv; | |
464 | ||
465 | /* Interrupt and Polling infrastructure */ | |
466 | struct work_struct phy_queue; | |
a390d1f3 | 467 | struct delayed_work state_queue; |
0ac49527 | 468 | atomic_t irq_disable; |
00db8189 | 469 | |
35b5f6b1 | 470 | struct mutex lock; |
00db8189 AF |
471 | |
472 | struct net_device *attached_dev; | |
473 | ||
634ec36c | 474 | u8 mdix; |
f4ed2fe3 | 475 | u8 mdix_ctrl; |
634ec36c | 476 | |
00db8189 | 477 | void (*adjust_link)(struct net_device *dev); |
00db8189 | 478 | }; |
e5a03bfd AL |
479 | #define to_phy_device(d) container_of(to_mdio_device(d), \ |
480 | struct phy_device, mdio) | |
00db8189 AF |
481 | |
482 | /* struct phy_driver: Driver structure for a particular PHY type | |
483 | * | |
a9049e0c | 484 | * driver_data: static driver data |
00db8189 AF |
485 | * phy_id: The result of reading the UID registers of this PHY |
486 | * type, and ANDing them with the phy_id_mask. This driver | |
487 | * only works for PHYs with IDs which match this field | |
488 | * name: The friendly name of this PHY type | |
489 | * phy_id_mask: Defines the important bits of the phy_id | |
490 | * features: A list of features (speed, duplex, etc) supported | |
491 | * by this PHY | |
492 | * flags: A bitfield defining certain other features this PHY | |
493 | * supports (like interrupts) | |
494 | * | |
495 | * The drivers must implement config_aneg and read_status. All | |
496 | * other functions are optional. Note that none of these | |
497 | * functions should be called from interrupt time. The goal is | |
498 | * for the bus read/write functions to be able to block when the | |
499 | * bus transaction is happening, and be freed up by an interrupt | |
500 | * (The MPC85xx has this ability, though it is not currently | |
501 | * supported in the driver). | |
502 | */ | |
503 | struct phy_driver { | |
a9049e0c | 504 | struct mdio_driver_common mdiodrv; |
00db8189 AF |
505 | u32 phy_id; |
506 | char *name; | |
507 | unsigned int phy_id_mask; | |
508 | u32 features; | |
509 | u32 flags; | |
860f6e9e | 510 | const void *driver_data; |
00db8189 | 511 | |
c5e38a94 | 512 | /* |
9df81dd7 FF |
513 | * Called to issue a PHY software reset |
514 | */ | |
515 | int (*soft_reset)(struct phy_device *phydev); | |
516 | ||
517 | /* | |
c5e38a94 AF |
518 | * Called to initialize the PHY, |
519 | * including after a reset | |
520 | */ | |
00db8189 AF |
521 | int (*config_init)(struct phy_device *phydev); |
522 | ||
c5e38a94 AF |
523 | /* |
524 | * Called during discovery. Used to set | |
525 | * up device-specific structures, if any | |
526 | */ | |
00db8189 AF |
527 | int (*probe)(struct phy_device *phydev); |
528 | ||
529 | /* PHY Power Management */ | |
530 | int (*suspend)(struct phy_device *phydev); | |
531 | int (*resume)(struct phy_device *phydev); | |
532 | ||
c5e38a94 AF |
533 | /* |
534 | * Configures the advertisement and resets | |
00db8189 AF |
535 | * autonegotiation if phydev->autoneg is on, |
536 | * forces the speed to the current settings in phydev | |
c5e38a94 AF |
537 | * if phydev->autoneg is off |
538 | */ | |
00db8189 AF |
539 | int (*config_aneg)(struct phy_device *phydev); |
540 | ||
76a423a3 FF |
541 | /* Determines the auto negotiation result */ |
542 | int (*aneg_done)(struct phy_device *phydev); | |
543 | ||
00db8189 AF |
544 | /* Determines the negotiated speed and duplex */ |
545 | int (*read_status)(struct phy_device *phydev); | |
546 | ||
547 | /* Clears any pending interrupts */ | |
548 | int (*ack_interrupt)(struct phy_device *phydev); | |
549 | ||
550 | /* Enables or disables interrupts */ | |
551 | int (*config_intr)(struct phy_device *phydev); | |
552 | ||
a8729eb3 AG |
553 | /* |
554 | * Checks if the PHY generated an interrupt. | |
555 | * For multi-PHY devices with shared PHY interrupt pin | |
556 | */ | |
557 | int (*did_interrupt)(struct phy_device *phydev); | |
558 | ||
00db8189 AF |
559 | /* Clears up any memory if needed */ |
560 | void (*remove)(struct phy_device *phydev); | |
561 | ||
a30e2c18 DD |
562 | /* Returns true if this is a suitable driver for the given |
563 | * phydev. If NULL, matching is based on phy_id and | |
564 | * phy_id_mask. | |
565 | */ | |
566 | int (*match_phy_device)(struct phy_device *phydev); | |
567 | ||
c8f3a8c3 RC |
568 | /* Handles ethtool queries for hardware time stamping. */ |
569 | int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti); | |
570 | ||
c1f19b51 RC |
571 | /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */ |
572 | int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr); | |
573 | ||
574 | /* | |
575 | * Requests a Rx timestamp for 'skb'. If the skb is accepted, | |
576 | * the phy driver promises to deliver it using netif_rx() as | |
577 | * soon as a timestamp becomes available. One of the | |
578 | * PTP_CLASS_ values is passed in 'type'. The function must | |
579 | * return true if the skb is accepted for delivery. | |
580 | */ | |
581 | bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); | |
582 | ||
583 | /* | |
584 | * Requests a Tx timestamp for 'skb'. The phy driver promises | |
da92b194 | 585 | * to deliver it using skb_complete_tx_timestamp() as soon as a |
c1f19b51 RC |
586 | * timestamp becomes available. One of the PTP_CLASS_ values |
587 | * is passed in 'type'. | |
588 | */ | |
589 | void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); | |
590 | ||
42e836eb MS |
591 | /* Some devices (e.g. qnap TS-119P II) require PHY register changes to |
592 | * enable Wake on LAN, so set_wol is provided to be called in the | |
593 | * ethernet driver's set_wol function. */ | |
594 | int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); | |
595 | ||
596 | /* See set_wol, but for checking whether Wake on LAN is enabled. */ | |
597 | void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); | |
598 | ||
2b8f2a28 DM |
599 | /* |
600 | * Called to inform a PHY device driver when the core is about to | |
601 | * change the link state. This callback is supposed to be used as | |
602 | * fixup hook for drivers that need to take action when the link | |
603 | * state changes. Drivers are by no means allowed to mess with the | |
604 | * PHY device structure in their implementations. | |
605 | */ | |
606 | void (*link_change_notify)(struct phy_device *dev); | |
607 | ||
1ee6b9bc RK |
608 | /* |
609 | * Phy specific driver override for reading a MMD register. | |
610 | * This function is optional for PHY specific drivers. When | |
611 | * not provided, the default MMD read function will be used | |
612 | * by phy_read_mmd(), which will use either a direct read for | |
613 | * Clause 45 PHYs or an indirect read for Clause 22 PHYs. | |
614 | * devnum is the MMD device number within the PHY device, | |
615 | * regnum is the register within the selected MMD device. | |
616 | */ | |
617 | int (*read_mmd)(struct phy_device *dev, int devnum, u16 regnum); | |
618 | ||
619 | /* | |
620 | * Phy specific driver override for writing a MMD register. | |
621 | * This function is optional for PHY specific drivers. When | |
622 | * not provided, the default MMD write function will be used | |
623 | * by phy_write_mmd(), which will use either a direct write for | |
624 | * Clause 45 PHYs, or an indirect write for Clause 22 PHYs. | |
625 | * devnum is the MMD device number within the PHY device, | |
626 | * regnum is the register within the selected MMD device. | |
627 | * val is the value to be written. | |
628 | */ | |
629 | int (*write_mmd)(struct phy_device *dev, int devnum, u16 regnum, | |
630 | u16 val); | |
631 | ||
2f438366 ES |
632 | /* Get the size and type of the eeprom contained within a plug-in |
633 | * module */ | |
634 | int (*module_info)(struct phy_device *dev, | |
635 | struct ethtool_modinfo *modinfo); | |
636 | ||
637 | /* Get the eeprom information from the plug-in module */ | |
638 | int (*module_eeprom)(struct phy_device *dev, | |
639 | struct ethtool_eeprom *ee, u8 *data); | |
640 | ||
f3a40945 AL |
641 | /* Get statistics from the phy using ethtool */ |
642 | int (*get_sset_count)(struct phy_device *dev); | |
643 | void (*get_strings)(struct phy_device *dev, u8 *data); | |
644 | void (*get_stats)(struct phy_device *dev, | |
645 | struct ethtool_stats *stats, u64 *data); | |
968ad9da RL |
646 | |
647 | /* Get and Set PHY tunables */ | |
648 | int (*get_tunable)(struct phy_device *dev, | |
649 | struct ethtool_tunable *tuna, void *data); | |
650 | int (*set_tunable)(struct phy_device *dev, | |
651 | struct ethtool_tunable *tuna, | |
652 | const void *data); | |
f0f9b4ed | 653 | int (*set_loopback)(struct phy_device *dev, bool enable); |
00db8189 | 654 | }; |
a9049e0c AL |
655 | #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \ |
656 | struct phy_driver, mdiodrv) | |
00db8189 | 657 | |
f62220d3 AF |
658 | #define PHY_ANY_ID "MATCH ANY PHY" |
659 | #define PHY_ANY_UID 0xffffffff | |
660 | ||
661 | /* A Structure for boards to register fixups with the PHY Lib */ | |
662 | struct phy_fixup { | |
663 | struct list_head list; | |
4567d686 | 664 | char bus_id[MII_BUS_ID_SIZE + 3]; |
f62220d3 AF |
665 | u32 phy_uid; |
666 | u32 phy_uid_mask; | |
667 | int (*run)(struct phy_device *phydev); | |
668 | }; | |
669 | ||
efabdfb9 AF |
670 | /** |
671 | * phy_read_mmd - Convenience function for reading a register | |
672 | * from an MMD on a given PHY. | |
673 | * @phydev: The phy_device struct | |
674 | * @devad: The MMD to read from | |
675 | * @regnum: The register on the MMD to read | |
676 | * | |
677 | * Same rules as for phy_read(); | |
678 | */ | |
9860118b | 679 | int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); |
efabdfb9 | 680 | |
2e888103 LB |
681 | /** |
682 | * phy_read - Convenience function for reading a given PHY register | |
683 | * @phydev: the phy_device struct | |
684 | * @regnum: register number to read | |
685 | * | |
686 | * NOTE: MUST NOT be called from interrupt context, | |
687 | * because the bus read/write functions may wait for an interrupt | |
688 | * to conclude the operation. | |
689 | */ | |
abf35df2 | 690 | static inline int phy_read(struct phy_device *phydev, u32 regnum) |
2e888103 | 691 | { |
e5a03bfd | 692 | return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); |
2e888103 LB |
693 | } |
694 | ||
695 | /** | |
696 | * phy_write - Convenience function for writing a given PHY register | |
697 | * @phydev: the phy_device struct | |
698 | * @regnum: register number to write | |
699 | * @val: value to write to @regnum | |
700 | * | |
701 | * NOTE: MUST NOT be called from interrupt context, | |
702 | * because the bus read/write functions may wait for an interrupt | |
703 | * to conclude the operation. | |
704 | */ | |
abf35df2 | 705 | static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val) |
2e888103 | 706 | { |
e5a03bfd | 707 | return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val); |
2e888103 LB |
708 | } |
709 | ||
2c7b4921 FF |
710 | /** |
711 | * phy_interrupt_is_valid - Convenience function for testing a given PHY irq | |
712 | * @phydev: the phy_device struct | |
713 | * | |
714 | * NOTE: must be kept in sync with addition/removal of PHY_POLL and | |
715 | * PHY_IGNORE_INTERRUPT | |
716 | */ | |
717 | static inline bool phy_interrupt_is_valid(struct phy_device *phydev) | |
718 | { | |
719 | return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT; | |
720 | } | |
721 | ||
4284b6a5 FF |
722 | /** |
723 | * phy_is_internal - Convenience function for testing if a PHY is internal | |
724 | * @phydev: the phy_device struct | |
725 | */ | |
726 | static inline bool phy_is_internal(struct phy_device *phydev) | |
727 | { | |
728 | return phydev->is_internal; | |
729 | } | |
730 | ||
32d0f783 IS |
731 | /** |
732 | * phy_interface_mode_is_rgmii - Convenience function for testing if a | |
733 | * PHY interface mode is RGMII (all variants) | |
734 | * @mode: the phy_interface_t enum | |
735 | */ | |
736 | static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode) | |
737 | { | |
738 | return mode >= PHY_INTERFACE_MODE_RGMII && | |
739 | mode <= PHY_INTERFACE_MODE_RGMII_TXID; | |
740 | }; | |
741 | ||
e463d88c FF |
742 | /** |
743 | * phy_interface_is_rgmii - Convenience function for testing if a PHY interface | |
744 | * is RGMII (all variants) | |
745 | * @phydev: the phy_device struct | |
746 | */ | |
747 | static inline bool phy_interface_is_rgmii(struct phy_device *phydev) | |
748 | { | |
32d0f783 | 749 | return phy_interface_mode_is_rgmii(phydev->interface); |
5a11dd7d FF |
750 | }; |
751 | ||
752 | /* | |
753 | * phy_is_pseudo_fixed_link - Convenience function for testing if this | |
754 | * PHY is the CPU port facing side of an Ethernet switch, or similar. | |
755 | * @phydev: the phy_device struct | |
756 | */ | |
757 | static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev) | |
758 | { | |
759 | return phydev->is_pseudo_fixed_link; | |
e463d88c FF |
760 | } |
761 | ||
efabdfb9 AF |
762 | /** |
763 | * phy_write_mmd - Convenience function for writing a register | |
764 | * on an MMD on a given PHY. | |
765 | * @phydev: The phy_device struct | |
766 | * @devad: The MMD to read from | |
767 | * @regnum: The register on the MMD to read | |
768 | * @val: value to write to @regnum | |
769 | * | |
770 | * Same rules as for phy_write(); | |
771 | */ | |
9860118b | 772 | int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val); |
efabdfb9 | 773 | |
ac28b9f8 | 774 | struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, |
4017b4d3 SS |
775 | bool is_c45, |
776 | struct phy_c45_device_ids *c45_ids); | |
90eff909 | 777 | #if IS_ENABLED(CONFIG_PHYLIB) |
ac28b9f8 | 778 | struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); |
4dea547f | 779 | int phy_device_register(struct phy_device *phy); |
90eff909 FF |
780 | void phy_device_free(struct phy_device *phydev); |
781 | #else | |
782 | static inline | |
783 | struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45) | |
784 | { | |
785 | return NULL; | |
786 | } | |
787 | ||
788 | static inline int phy_device_register(struct phy_device *phy) | |
789 | { | |
790 | return 0; | |
791 | } | |
792 | ||
793 | static inline void phy_device_free(struct phy_device *phydev) { } | |
794 | #endif /* CONFIG_PHYLIB */ | |
38737e49 | 795 | void phy_device_remove(struct phy_device *phydev); |
2f5cb434 | 796 | int phy_init_hw(struct phy_device *phydev); |
481b5d93 SH |
797 | int phy_suspend(struct phy_device *phydev); |
798 | int phy_resume(struct phy_device *phydev); | |
f0f9b4ed | 799 | int phy_loopback(struct phy_device *phydev, bool enable); |
4017b4d3 SS |
800 | struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, |
801 | phy_interface_t interface); | |
f8f76db1 | 802 | struct phy_device *phy_find_first(struct mii_bus *bus); |
257184d7 AF |
803 | int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, |
804 | u32 flags, phy_interface_t interface); | |
fa94f6d9 | 805 | int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, |
4017b4d3 SS |
806 | void (*handler)(struct net_device *), |
807 | phy_interface_t interface); | |
808 | struct phy_device *phy_connect(struct net_device *dev, const char *bus_id, | |
809 | void (*handler)(struct net_device *), | |
810 | phy_interface_t interface); | |
e1393456 AF |
811 | void phy_disconnect(struct phy_device *phydev); |
812 | void phy_detach(struct phy_device *phydev); | |
813 | void phy_start(struct phy_device *phydev); | |
814 | void phy_stop(struct phy_device *phydev); | |
815 | int phy_start_aneg(struct phy_device *phydev); | |
372788f9 | 816 | int phy_aneg_done(struct phy_device *phydev); |
e1393456 | 817 | |
e1393456 | 818 | int phy_stop_interrupts(struct phy_device *phydev); |
002ba705 | 819 | int phy_restart_aneg(struct phy_device *phydev); |
00db8189 | 820 | |
4017b4d3 SS |
821 | static inline int phy_read_status(struct phy_device *phydev) |
822 | { | |
25149ef9 FF |
823 | if (!phydev->drv) |
824 | return -EIO; | |
825 | ||
00db8189 AF |
826 | return phydev->drv->read_status(phydev); |
827 | } | |
828 | ||
72ba48be | 829 | #define phydev_err(_phydev, format, args...) \ |
e5a03bfd | 830 | dev_err(&_phydev->mdio.dev, format, ##args) |
72ba48be AL |
831 | |
832 | #define phydev_dbg(_phydev, format, args...) \ | |
2eaa38d9 | 833 | dev_dbg(&_phydev->mdio.dev, format, ##args) |
72ba48be | 834 | |
84eff6d1 AL |
835 | static inline const char *phydev_name(const struct phy_device *phydev) |
836 | { | |
e5a03bfd | 837 | return dev_name(&phydev->mdio.dev); |
84eff6d1 AL |
838 | } |
839 | ||
2220943a AL |
840 | void phy_attached_print(struct phy_device *phydev, const char *fmt, ...) |
841 | __printf(2, 3); | |
842 | void phy_attached_info(struct phy_device *phydev); | |
5acde34a RK |
843 | |
844 | /* Clause 22 PHY */ | |
af6b6967 | 845 | int genphy_config_init(struct phy_device *phydev); |
3fb69bca | 846 | int genphy_setup_forced(struct phy_device *phydev); |
00db8189 AF |
847 | int genphy_restart_aneg(struct phy_device *phydev); |
848 | int genphy_config_aneg(struct phy_device *phydev); | |
a9fa6e6a | 849 | int genphy_aneg_done(struct phy_device *phydev); |
00db8189 AF |
850 | int genphy_update_link(struct phy_device *phydev); |
851 | int genphy_read_status(struct phy_device *phydev); | |
0f0ca340 GC |
852 | int genphy_suspend(struct phy_device *phydev); |
853 | int genphy_resume(struct phy_device *phydev); | |
f0f9b4ed | 854 | int genphy_loopback(struct phy_device *phydev, bool enable); |
797ac071 | 855 | int genphy_soft_reset(struct phy_device *phydev); |
0878fff1 FF |
856 | static inline int genphy_no_soft_reset(struct phy_device *phydev) |
857 | { | |
858 | return 0; | |
859 | } | |
5acde34a RK |
860 | |
861 | /* Clause 45 PHY */ | |
862 | int genphy_c45_restart_aneg(struct phy_device *phydev); | |
863 | int genphy_c45_aneg_done(struct phy_device *phydev); | |
864 | int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask); | |
865 | int genphy_c45_read_lpa(struct phy_device *phydev); | |
866 | int genphy_c45_read_pma(struct phy_device *phydev); | |
867 | int genphy_c45_pma_setup_forced(struct phy_device *phydev); | |
868 | int genphy_c45_an_disable_aneg(struct phy_device *phydev); | |
869 | ||
00db8189 | 870 | void phy_driver_unregister(struct phy_driver *drv); |
d5bf9071 | 871 | void phy_drivers_unregister(struct phy_driver *drv, int n); |
be01da72 AL |
872 | int phy_driver_register(struct phy_driver *new_driver, struct module *owner); |
873 | int phy_drivers_register(struct phy_driver *new_driver, int n, | |
874 | struct module *owner); | |
4f9c85a1 | 875 | void phy_state_machine(struct work_struct *work); |
664fcf12 AL |
876 | void phy_change(struct phy_device *phydev); |
877 | void phy_change_work(struct work_struct *work); | |
5ea94e76 | 878 | void phy_mac_interrupt(struct phy_device *phydev, int new_link); |
29935aeb | 879 | void phy_start_machine(struct phy_device *phydev); |
00db8189 | 880 | void phy_stop_machine(struct phy_device *phydev); |
f555f34f | 881 | void phy_trigger_machine(struct phy_device *phydev, bool sync); |
00db8189 | 882 | int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); |
5514174f | 883 | void phy_ethtool_ksettings_get(struct phy_device *phydev, |
884 | struct ethtool_link_ksettings *cmd); | |
2d55173e PR |
885 | int phy_ethtool_ksettings_set(struct phy_device *phydev, |
886 | const struct ethtool_link_ksettings *cmd); | |
4017b4d3 | 887 | int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); |
e1393456 AF |
888 | int phy_start_interrupts(struct phy_device *phydev); |
889 | void phy_print_status(struct phy_device *phydev); | |
f3a6bd39 | 890 | int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); |
00db8189 | 891 | |
f62220d3 | 892 | int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, |
4017b4d3 | 893 | int (*run)(struct phy_device *)); |
f62220d3 | 894 | int phy_register_fixup_for_id(const char *bus_id, |
4017b4d3 | 895 | int (*run)(struct phy_device *)); |
f62220d3 | 896 | int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, |
4017b4d3 | 897 | int (*run)(struct phy_device *)); |
f62220d3 | 898 | |
f38e7a32 WH |
899 | int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask); |
900 | int phy_unregister_fixup_for_id(const char *bus_id); | |
901 | int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask); | |
902 | ||
a59a4d19 GC |
903 | int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); |
904 | int phy_get_eee_err(struct phy_device *phydev); | |
905 | int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); | |
906 | int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); | |
42e836eb | 907 | int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); |
4017b4d3 SS |
908 | void phy_ethtool_get_wol(struct phy_device *phydev, |
909 | struct ethtool_wolinfo *wol); | |
9d9a77ce PR |
910 | int phy_ethtool_get_link_ksettings(struct net_device *ndev, |
911 | struct ethtool_link_ksettings *cmd); | |
912 | int phy_ethtool_set_link_ksettings(struct net_device *ndev, | |
913 | const struct ethtool_link_ksettings *cmd); | |
e86a8987 | 914 | int phy_ethtool_nway_reset(struct net_device *ndev); |
a59a4d19 | 915 | |
90eff909 | 916 | #if IS_ENABLED(CONFIG_PHYLIB) |
9b9a8bfc AF |
917 | int __init mdio_bus_init(void); |
918 | void mdio_bus_exit(void); | |
90eff909 | 919 | #endif |
9b9a8bfc | 920 | |
00db8189 | 921 | extern struct bus_type mdio_bus_type; |
c31accd1 | 922 | |
648ea013 FF |
923 | struct mdio_board_info { |
924 | const char *bus_id; | |
925 | char modalias[MDIO_NAME_SIZE]; | |
926 | int mdio_addr; | |
927 | const void *platform_data; | |
928 | }; | |
929 | ||
90eff909 | 930 | #if IS_ENABLED(CONFIG_MDIO_DEVICE) |
648ea013 FF |
931 | int mdiobus_register_board_info(const struct mdio_board_info *info, |
932 | unsigned int n); | |
933 | #else | |
934 | static inline int mdiobus_register_board_info(const struct mdio_board_info *i, | |
935 | unsigned int n) | |
936 | { | |
937 | return 0; | |
938 | } | |
939 | #endif | |
940 | ||
941 | ||
c31accd1 JH |
942 | /** |
943 | * module_phy_driver() - Helper macro for registering PHY drivers | |
944 | * @__phy_drivers: array of PHY drivers to register | |
945 | * | |
946 | * Helper macro for PHY drivers which do not do anything special in module | |
947 | * init/exit. Each module may only use this macro once, and calling it | |
948 | * replaces module_init() and module_exit(). | |
949 | */ | |
950 | #define phy_module_driver(__phy_drivers, __count) \ | |
951 | static int __init phy_module_init(void) \ | |
952 | { \ | |
be01da72 | 953 | return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \ |
c31accd1 JH |
954 | } \ |
955 | module_init(phy_module_init); \ | |
956 | static void __exit phy_module_exit(void) \ | |
957 | { \ | |
958 | phy_drivers_unregister(__phy_drivers, __count); \ | |
959 | } \ | |
960 | module_exit(phy_module_exit) | |
961 | ||
962 | #define module_phy_driver(__phy_drivers) \ | |
963 | phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers)) | |
964 | ||
00db8189 | 965 | #endif /* __PHY_H */ |