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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 | |
61 | #define PHY_HAS_MAGICANEG 0x00000002 | |
4284b6a5 | 62 | #define PHY_IS_INTERNAL 0x00000004 |
a9049e0c | 63 | #define MDIO_DEVICE_IS_PHY 0x80000000 |
00db8189 | 64 | |
e8a2b6a4 AF |
65 | /* Interface Mode definitions */ |
66 | typedef enum { | |
4157ef1b | 67 | PHY_INTERFACE_MODE_NA, |
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, |
8a2fe56e | 84 | PHY_INTERFACE_MODE_MAX, |
e8a2b6a4 AF |
85 | } phy_interface_t; |
86 | ||
1f9127ca ZB |
87 | /** |
88 | * phy_supported_speeds - return all speeds currently supported by a phy device | |
89 | * @phy: The phy device to return supported speeds of. | |
90 | * @speeds: buffer to store supported speeds in. | |
91 | * @size: size of speeds buffer. | |
92 | * | |
93 | * Description: Returns the number of supported speeds, and | |
94 | * fills the speeds * buffer with the supported speeds. If speeds buffer is | |
95 | * too small to contain * all currently supported speeds, will return as | |
96 | * many speeds as can fit. | |
97 | */ | |
98 | unsigned int phy_supported_speeds(struct phy_device *phy, | |
99 | unsigned int *speeds, | |
100 | unsigned int size); | |
101 | ||
8a2fe56e FF |
102 | /** |
103 | * It maps 'enum phy_interface_t' found in include/linux/phy.h | |
104 | * into the device tree binding of 'phy-mode', so that Ethernet | |
105 | * device driver can get phy interface from device tree. | |
106 | */ | |
107 | static inline const char *phy_modes(phy_interface_t interface) | |
108 | { | |
109 | switch (interface) { | |
110 | case PHY_INTERFACE_MODE_NA: | |
111 | return ""; | |
112 | case PHY_INTERFACE_MODE_MII: | |
113 | return "mii"; | |
114 | case PHY_INTERFACE_MODE_GMII: | |
115 | return "gmii"; | |
116 | case PHY_INTERFACE_MODE_SGMII: | |
117 | return "sgmii"; | |
118 | case PHY_INTERFACE_MODE_TBI: | |
119 | return "tbi"; | |
120 | case PHY_INTERFACE_MODE_REVMII: | |
121 | return "rev-mii"; | |
122 | case PHY_INTERFACE_MODE_RMII: | |
123 | return "rmii"; | |
124 | case PHY_INTERFACE_MODE_RGMII: | |
125 | return "rgmii"; | |
126 | case PHY_INTERFACE_MODE_RGMII_ID: | |
127 | return "rgmii-id"; | |
128 | case PHY_INTERFACE_MODE_RGMII_RXID: | |
129 | return "rgmii-rxid"; | |
130 | case PHY_INTERFACE_MODE_RGMII_TXID: | |
131 | return "rgmii-txid"; | |
132 | case PHY_INTERFACE_MODE_RTBI: | |
133 | return "rtbi"; | |
134 | case PHY_INTERFACE_MODE_SMII: | |
135 | return "smii"; | |
136 | case PHY_INTERFACE_MODE_XGMII: | |
137 | return "xgmii"; | |
fd70f72c FF |
138 | case PHY_INTERFACE_MODE_MOCA: |
139 | return "moca"; | |
b9d12085 TP |
140 | case PHY_INTERFACE_MODE_QSGMII: |
141 | return "qsgmii"; | |
572de608 SW |
142 | case PHY_INTERFACE_MODE_TRGMII: |
143 | return "trgmii"; | |
8a2fe56e FF |
144 | default: |
145 | return "unknown"; | |
146 | } | |
147 | } | |
148 | ||
00db8189 | 149 | |
e8a2b6a4 | 150 | #define PHY_INIT_TIMEOUT 100000 |
00db8189 AF |
151 | #define PHY_STATE_TIME 1 |
152 | #define PHY_FORCE_TIMEOUT 10 | |
153 | #define PHY_AN_TIMEOUT 10 | |
154 | ||
e8a2b6a4 | 155 | #define PHY_MAX_ADDR 32 |
00db8189 | 156 | |
a4d00f17 | 157 | /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ |
9d9326d3 AF |
158 | #define PHY_ID_FMT "%s:%02x" |
159 | ||
160 | /* | |
161 | * Need to be a little smaller than phydev->dev.bus_id to leave room | |
162 | * for the ":%02x" | |
163 | */ | |
8e401ecc | 164 | #define MII_BUS_ID_SIZE (20 - 3) |
a4d00f17 | 165 | |
abf35df2 JG |
166 | /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit |
167 | IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */ | |
168 | #define MII_ADDR_C45 (1<<30) | |
169 | ||
313162d0 PG |
170 | struct device; |
171 | struct sk_buff; | |
172 | ||
c5e38a94 AF |
173 | /* |
174 | * The Bus class for PHYs. Devices which provide access to | |
175 | * PHYs should register using this structure | |
176 | */ | |
00db8189 | 177 | struct mii_bus { |
3e3aaf64 | 178 | struct module *owner; |
00db8189 | 179 | const char *name; |
9d9326d3 | 180 | char id[MII_BUS_ID_SIZE]; |
00db8189 | 181 | void *priv; |
ccaa953e AL |
182 | int (*read)(struct mii_bus *bus, int addr, int regnum); |
183 | int (*write)(struct mii_bus *bus, int addr, int regnum, u16 val); | |
00db8189 AF |
184 | int (*reset)(struct mii_bus *bus); |
185 | ||
c5e38a94 AF |
186 | /* |
187 | * A lock to ensure that only one thing can read/write | |
188 | * the MDIO bus at a time | |
189 | */ | |
35b5f6b1 | 190 | struct mutex mdio_lock; |
00db8189 | 191 | |
18ee49dd | 192 | struct device *parent; |
46abc021 LB |
193 | enum { |
194 | MDIOBUS_ALLOCATED = 1, | |
195 | MDIOBUS_REGISTERED, | |
196 | MDIOBUS_UNREGISTERED, | |
197 | MDIOBUS_RELEASED, | |
198 | } state; | |
199 | struct device dev; | |
00db8189 AF |
200 | |
201 | /* list of all PHYs on bus */ | |
7f854420 | 202 | struct mdio_device *mdio_map[PHY_MAX_ADDR]; |
00db8189 | 203 | |
c6883996 | 204 | /* PHY addresses to be ignored when probing */ |
f896424c MP |
205 | u32 phy_mask; |
206 | ||
922f2dd1 FF |
207 | /* PHY addresses to ignore the TA/read failure */ |
208 | u32 phy_ignore_ta_mask; | |
209 | ||
c5e38a94 | 210 | /* |
e7f4dc35 AL |
211 | * An array of interrupts, each PHY's interrupt at the index |
212 | * matching its address | |
c5e38a94 | 213 | */ |
e7f4dc35 | 214 | int irq[PHY_MAX_ADDR]; |
00db8189 | 215 | }; |
46abc021 | 216 | #define to_mii_bus(d) container_of(d, struct mii_bus, dev) |
00db8189 | 217 | |
eb8a54a7 TT |
218 | struct mii_bus *mdiobus_alloc_size(size_t); |
219 | static inline struct mii_bus *mdiobus_alloc(void) | |
220 | { | |
221 | return mdiobus_alloc_size(0); | |
222 | } | |
223 | ||
3e3aaf64 RK |
224 | int __mdiobus_register(struct mii_bus *bus, struct module *owner); |
225 | #define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE) | |
2e888103 LB |
226 | void mdiobus_unregister(struct mii_bus *bus); |
227 | void mdiobus_free(struct mii_bus *bus); | |
6d48f44b GS |
228 | struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv); |
229 | static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev) | |
230 | { | |
231 | return devm_mdiobus_alloc_size(dev, 0); | |
232 | } | |
233 | ||
234 | void devm_mdiobus_free(struct device *dev, struct mii_bus *bus); | |
2e888103 | 235 | struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); |
2e888103 | 236 | |
e8a2b6a4 AF |
237 | #define PHY_INTERRUPT_DISABLED 0x0 |
238 | #define PHY_INTERRUPT_ENABLED 0x80000000 | |
00db8189 AF |
239 | |
240 | /* PHY state machine states: | |
241 | * | |
242 | * DOWN: PHY device and driver are not ready for anything. probe | |
243 | * should be called if and only if the PHY is in this state, | |
244 | * given that the PHY device exists. | |
245 | * - PHY driver probe function will, depending on the PHY, set | |
246 | * the state to STARTING or READY | |
247 | * | |
248 | * STARTING: PHY device is coming up, and the ethernet driver is | |
249 | * not ready. PHY drivers may set this in the probe function. | |
250 | * If they do, they are responsible for making sure the state is | |
251 | * eventually set to indicate whether the PHY is UP or READY, | |
252 | * depending on the state when the PHY is done starting up. | |
253 | * - PHY driver will set the state to READY | |
254 | * - start will set the state to PENDING | |
255 | * | |
256 | * READY: PHY is ready to send and receive packets, but the | |
257 | * controller is not. By default, PHYs which do not implement | |
258 | * probe will be set to this state by phy_probe(). If the PHY | |
259 | * driver knows the PHY is ready, and the PHY state is STARTING, | |
260 | * then it sets this STATE. | |
261 | * - start will set the state to UP | |
262 | * | |
263 | * PENDING: PHY device is coming up, but the ethernet driver is | |
264 | * ready. phy_start will set this state if the PHY state is | |
265 | * STARTING. | |
266 | * - PHY driver will set the state to UP when the PHY is ready | |
267 | * | |
268 | * UP: The PHY and attached device are ready to do work. | |
269 | * Interrupts should be started here. | |
270 | * - timer moves to AN | |
271 | * | |
272 | * AN: The PHY is currently negotiating the link state. Link is | |
273 | * therefore down for now. phy_timer will set this state when it | |
274 | * detects the state is UP. config_aneg will set this state | |
275 | * whenever called with phydev->autoneg set to AUTONEG_ENABLE. | |
276 | * - If autonegotiation finishes, but there's no link, it sets | |
277 | * the state to NOLINK. | |
278 | * - If aneg finishes with link, it sets the state to RUNNING, | |
279 | * and calls adjust_link | |
280 | * - If autonegotiation did not finish after an arbitrary amount | |
281 | * of time, autonegotiation should be tried again if the PHY | |
282 | * supports "magic" autonegotiation (back to AN) | |
283 | * - If it didn't finish, and no magic_aneg, move to FORCING. | |
284 | * | |
285 | * NOLINK: PHY is up, but not currently plugged in. | |
286 | * - If the timer notes that the link comes back, we move to RUNNING | |
287 | * - config_aneg moves to AN | |
288 | * - phy_stop moves to HALTED | |
289 | * | |
290 | * FORCING: PHY is being configured with forced settings | |
291 | * - if link is up, move to RUNNING | |
292 | * - If link is down, we drop to the next highest setting, and | |
293 | * retry (FORCING) after a timeout | |
294 | * - phy_stop moves to HALTED | |
295 | * | |
296 | * RUNNING: PHY is currently up, running, and possibly sending | |
297 | * and/or receiving packets | |
298 | * - timer will set CHANGELINK if we're polling (this ensures the | |
299 | * link state is polled every other cycle of this state machine, | |
300 | * which makes it every other second) | |
301 | * - irq will set CHANGELINK | |
302 | * - config_aneg will set AN | |
303 | * - phy_stop moves to HALTED | |
304 | * | |
305 | * CHANGELINK: PHY experienced a change in link state | |
306 | * - timer moves to RUNNING if link | |
307 | * - timer moves to NOLINK if the link is down | |
308 | * - phy_stop moves to HALTED | |
309 | * | |
310 | * HALTED: PHY is up, but no polling or interrupts are done. Or | |
311 | * PHY is in an error state. | |
312 | * | |
313 | * - phy_start moves to RESUMING | |
314 | * | |
315 | * RESUMING: PHY was halted, but now wants to run again. | |
316 | * - If we are forcing, or aneg is done, timer moves to RUNNING | |
317 | * - If aneg is not done, timer moves to AN | |
318 | * - phy_stop moves to HALTED | |
319 | */ | |
320 | enum phy_state { | |
4017b4d3 | 321 | PHY_DOWN = 0, |
00db8189 AF |
322 | PHY_STARTING, |
323 | PHY_READY, | |
324 | PHY_PENDING, | |
325 | PHY_UP, | |
326 | PHY_AN, | |
327 | PHY_RUNNING, | |
328 | PHY_NOLINK, | |
329 | PHY_FORCING, | |
330 | PHY_CHANGELINK, | |
331 | PHY_HALTED, | |
332 | PHY_RESUMING | |
333 | }; | |
334 | ||
ac28b9f8 DD |
335 | /** |
336 | * struct phy_c45_device_ids - 802.3-c45 Device Identifiers | |
337 | * @devices_in_package: Bit vector of devices present. | |
338 | * @device_ids: The device identifer for each present device. | |
339 | */ | |
340 | struct phy_c45_device_ids { | |
341 | u32 devices_in_package; | |
342 | u32 device_ids[8]; | |
343 | }; | |
c1f19b51 | 344 | |
00db8189 AF |
345 | /* phy_device: An instance of a PHY |
346 | * | |
347 | * drv: Pointer to the driver for this PHY instance | |
00db8189 | 348 | * phy_id: UID for this device found during discovery |
ac28b9f8 DD |
349 | * c45_ids: 802.3-c45 Device Identifers if is_c45. |
350 | * is_c45: Set to true if this phy uses clause 45 addressing. | |
4284b6a5 | 351 | * is_internal: Set to true if this phy is internal to a MAC. |
5a11dd7d | 352 | * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc. |
aae88261 | 353 | * has_fixups: Set to true if this phy has fixups/quirks. |
8a477a6f | 354 | * suspended: Set to true if this phy has been suspended successfully. |
00db8189 AF |
355 | * state: state of the PHY for management purposes |
356 | * dev_flags: Device-specific flags used by the PHY driver. | |
00db8189 AF |
357 | * link_timeout: The number of timer firings to wait before the |
358 | * giving up on the current attempt at acquiring a link | |
359 | * irq: IRQ number of the PHY's interrupt (-1 if none) | |
360 | * phy_timer: The timer for handling the state machine | |
664fcf12 | 361 | * phy_queue: A work_queue for the phy_mac_interrupt |
00db8189 AF |
362 | * attached_dev: The attached enet driver's device instance ptr |
363 | * adjust_link: Callback for the enet controller to respond to | |
364 | * changes in the link state. | |
00db8189 | 365 | * |
114002bc FF |
366 | * speed, duplex, pause, supported, advertising, lp_advertising, |
367 | * and autoneg are used like in mii_if_info | |
00db8189 AF |
368 | * |
369 | * interrupts currently only supports enabled or disabled, | |
370 | * but could be changed in the future to support enabling | |
371 | * and disabling specific interrupts | |
372 | * | |
373 | * Contains some infrastructure for polling and interrupt | |
374 | * handling, as well as handling shifts in PHY hardware state | |
375 | */ | |
376 | struct phy_device { | |
e5a03bfd AL |
377 | struct mdio_device mdio; |
378 | ||
00db8189 AF |
379 | /* Information about the PHY type */ |
380 | /* And management functions */ | |
381 | struct phy_driver *drv; | |
382 | ||
00db8189 AF |
383 | u32 phy_id; |
384 | ||
ac28b9f8 DD |
385 | struct phy_c45_device_ids c45_ids; |
386 | bool is_c45; | |
4284b6a5 | 387 | bool is_internal; |
5a11dd7d | 388 | bool is_pseudo_fixed_link; |
b0ae009f | 389 | bool has_fixups; |
8a477a6f | 390 | bool suspended; |
ac28b9f8 | 391 | |
00db8189 AF |
392 | enum phy_state state; |
393 | ||
394 | u32 dev_flags; | |
395 | ||
e8a2b6a4 AF |
396 | phy_interface_t interface; |
397 | ||
c5e38a94 AF |
398 | /* |
399 | * forced speed & duplex (no autoneg) | |
00db8189 AF |
400 | * partner speed & duplex & pause (autoneg) |
401 | */ | |
402 | int speed; | |
403 | int duplex; | |
404 | int pause; | |
405 | int asym_pause; | |
406 | ||
407 | /* The most recently read link state */ | |
408 | int link; | |
409 | ||
410 | /* Enabled Interrupts */ | |
411 | u32 interrupts; | |
412 | ||
413 | /* Union of PHY and Attached devices' supported modes */ | |
414 | /* See mii.h for more info */ | |
415 | u32 supported; | |
416 | u32 advertising; | |
114002bc | 417 | u32 lp_advertising; |
00db8189 | 418 | |
d853d145 | 419 | /* Energy efficient ethernet modes which should be prohibited */ |
420 | u32 eee_broken_modes; | |
421 | ||
00db8189 AF |
422 | int autoneg; |
423 | ||
424 | int link_timeout; | |
425 | ||
2e0bc452 ZB |
426 | #ifdef CONFIG_LED_TRIGGER_PHY |
427 | struct phy_led_trigger *phy_led_triggers; | |
428 | unsigned int phy_num_led_triggers; | |
429 | struct phy_led_trigger *last_triggered; | |
430 | #endif | |
431 | ||
c5e38a94 AF |
432 | /* |
433 | * Interrupt number for this PHY | |
434 | * -1 means no interrupt | |
435 | */ | |
00db8189 AF |
436 | int irq; |
437 | ||
438 | /* private data pointer */ | |
439 | /* For use by PHYs to maintain extra state */ | |
440 | void *priv; | |
441 | ||
442 | /* Interrupt and Polling infrastructure */ | |
443 | struct work_struct phy_queue; | |
a390d1f3 | 444 | struct delayed_work state_queue; |
0ac49527 | 445 | atomic_t irq_disable; |
00db8189 | 446 | |
35b5f6b1 | 447 | struct mutex lock; |
00db8189 AF |
448 | |
449 | struct net_device *attached_dev; | |
450 | ||
634ec36c | 451 | u8 mdix; |
f4ed2fe3 | 452 | u8 mdix_ctrl; |
634ec36c | 453 | |
00db8189 | 454 | void (*adjust_link)(struct net_device *dev); |
00db8189 | 455 | }; |
e5a03bfd AL |
456 | #define to_phy_device(d) container_of(to_mdio_device(d), \ |
457 | struct phy_device, mdio) | |
00db8189 AF |
458 | |
459 | /* struct phy_driver: Driver structure for a particular PHY type | |
460 | * | |
a9049e0c | 461 | * driver_data: static driver data |
00db8189 AF |
462 | * phy_id: The result of reading the UID registers of this PHY |
463 | * type, and ANDing them with the phy_id_mask. This driver | |
464 | * only works for PHYs with IDs which match this field | |
465 | * name: The friendly name of this PHY type | |
466 | * phy_id_mask: Defines the important bits of the phy_id | |
467 | * features: A list of features (speed, duplex, etc) supported | |
468 | * by this PHY | |
469 | * flags: A bitfield defining certain other features this PHY | |
470 | * supports (like interrupts) | |
471 | * | |
472 | * The drivers must implement config_aneg and read_status. All | |
473 | * other functions are optional. Note that none of these | |
474 | * functions should be called from interrupt time. The goal is | |
475 | * for the bus read/write functions to be able to block when the | |
476 | * bus transaction is happening, and be freed up by an interrupt | |
477 | * (The MPC85xx has this ability, though it is not currently | |
478 | * supported in the driver). | |
479 | */ | |
480 | struct phy_driver { | |
a9049e0c | 481 | struct mdio_driver_common mdiodrv; |
00db8189 AF |
482 | u32 phy_id; |
483 | char *name; | |
484 | unsigned int phy_id_mask; | |
485 | u32 features; | |
486 | u32 flags; | |
860f6e9e | 487 | const void *driver_data; |
00db8189 | 488 | |
c5e38a94 | 489 | /* |
9df81dd7 FF |
490 | * Called to issue a PHY software reset |
491 | */ | |
492 | int (*soft_reset)(struct phy_device *phydev); | |
493 | ||
494 | /* | |
c5e38a94 AF |
495 | * Called to initialize the PHY, |
496 | * including after a reset | |
497 | */ | |
00db8189 AF |
498 | int (*config_init)(struct phy_device *phydev); |
499 | ||
c5e38a94 AF |
500 | /* |
501 | * Called during discovery. Used to set | |
502 | * up device-specific structures, if any | |
503 | */ | |
00db8189 AF |
504 | int (*probe)(struct phy_device *phydev); |
505 | ||
506 | /* PHY Power Management */ | |
507 | int (*suspend)(struct phy_device *phydev); | |
508 | int (*resume)(struct phy_device *phydev); | |
509 | ||
c5e38a94 AF |
510 | /* |
511 | * Configures the advertisement and resets | |
00db8189 AF |
512 | * autonegotiation if phydev->autoneg is on, |
513 | * forces the speed to the current settings in phydev | |
c5e38a94 AF |
514 | * if phydev->autoneg is off |
515 | */ | |
00db8189 AF |
516 | int (*config_aneg)(struct phy_device *phydev); |
517 | ||
76a423a3 FF |
518 | /* Determines the auto negotiation result */ |
519 | int (*aneg_done)(struct phy_device *phydev); | |
520 | ||
00db8189 AF |
521 | /* Determines the negotiated speed and duplex */ |
522 | int (*read_status)(struct phy_device *phydev); | |
523 | ||
524 | /* Clears any pending interrupts */ | |
525 | int (*ack_interrupt)(struct phy_device *phydev); | |
526 | ||
527 | /* Enables or disables interrupts */ | |
528 | int (*config_intr)(struct phy_device *phydev); | |
529 | ||
a8729eb3 AG |
530 | /* |
531 | * Checks if the PHY generated an interrupt. | |
532 | * For multi-PHY devices with shared PHY interrupt pin | |
533 | */ | |
534 | int (*did_interrupt)(struct phy_device *phydev); | |
535 | ||
00db8189 AF |
536 | /* Clears up any memory if needed */ |
537 | void (*remove)(struct phy_device *phydev); | |
538 | ||
a30e2c18 DD |
539 | /* Returns true if this is a suitable driver for the given |
540 | * phydev. If NULL, matching is based on phy_id and | |
541 | * phy_id_mask. | |
542 | */ | |
543 | int (*match_phy_device)(struct phy_device *phydev); | |
544 | ||
c8f3a8c3 RC |
545 | /* Handles ethtool queries for hardware time stamping. */ |
546 | int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti); | |
547 | ||
c1f19b51 RC |
548 | /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */ |
549 | int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr); | |
550 | ||
551 | /* | |
552 | * Requests a Rx timestamp for 'skb'. If the skb is accepted, | |
553 | * the phy driver promises to deliver it using netif_rx() as | |
554 | * soon as a timestamp becomes available. One of the | |
555 | * PTP_CLASS_ values is passed in 'type'. The function must | |
556 | * return true if the skb is accepted for delivery. | |
557 | */ | |
558 | bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); | |
559 | ||
560 | /* | |
561 | * Requests a Tx timestamp for 'skb'. The phy driver promises | |
da92b194 | 562 | * to deliver it using skb_complete_tx_timestamp() as soon as a |
c1f19b51 RC |
563 | * timestamp becomes available. One of the PTP_CLASS_ values |
564 | * is passed in 'type'. | |
565 | */ | |
566 | void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); | |
567 | ||
42e836eb MS |
568 | /* Some devices (e.g. qnap TS-119P II) require PHY register changes to |
569 | * enable Wake on LAN, so set_wol is provided to be called in the | |
570 | * ethernet driver's set_wol function. */ | |
571 | int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); | |
572 | ||
573 | /* See set_wol, but for checking whether Wake on LAN is enabled. */ | |
574 | void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); | |
575 | ||
2b8f2a28 DM |
576 | /* |
577 | * Called to inform a PHY device driver when the core is about to | |
578 | * change the link state. This callback is supposed to be used as | |
579 | * fixup hook for drivers that need to take action when the link | |
580 | * state changes. Drivers are by no means allowed to mess with the | |
581 | * PHY device structure in their implementations. | |
582 | */ | |
583 | void (*link_change_notify)(struct phy_device *dev); | |
584 | ||
0c1d77df VB |
585 | /* A function provided by a phy specific driver to override the |
586 | * the PHY driver framework support for reading a MMD register | |
587 | * from the PHY. If not supported, return -1. This function is | |
588 | * optional for PHY specific drivers, if not provided then the | |
589 | * default MMD read function is used by the PHY framework. | |
590 | */ | |
591 | int (*read_mmd_indirect)(struct phy_device *dev, int ptrad, | |
592 | int devnum, int regnum); | |
593 | ||
594 | /* A function provided by a phy specific driver to override the | |
595 | * the PHY driver framework support for writing a MMD register | |
596 | * from the PHY. This function is optional for PHY specific drivers, | |
597 | * if not provided then the default MMD read function is used by | |
598 | * the PHY framework. | |
599 | */ | |
600 | void (*write_mmd_indirect)(struct phy_device *dev, int ptrad, | |
601 | int devnum, int regnum, u32 val); | |
602 | ||
2f438366 ES |
603 | /* Get the size and type of the eeprom contained within a plug-in |
604 | * module */ | |
605 | int (*module_info)(struct phy_device *dev, | |
606 | struct ethtool_modinfo *modinfo); | |
607 | ||
608 | /* Get the eeprom information from the plug-in module */ | |
609 | int (*module_eeprom)(struct phy_device *dev, | |
610 | struct ethtool_eeprom *ee, u8 *data); | |
611 | ||
f3a40945 AL |
612 | /* Get statistics from the phy using ethtool */ |
613 | int (*get_sset_count)(struct phy_device *dev); | |
614 | void (*get_strings)(struct phy_device *dev, u8 *data); | |
615 | void (*get_stats)(struct phy_device *dev, | |
616 | struct ethtool_stats *stats, u64 *data); | |
968ad9da RL |
617 | |
618 | /* Get and Set PHY tunables */ | |
619 | int (*get_tunable)(struct phy_device *dev, | |
620 | struct ethtool_tunable *tuna, void *data); | |
621 | int (*set_tunable)(struct phy_device *dev, | |
622 | struct ethtool_tunable *tuna, | |
623 | const void *data); | |
00db8189 | 624 | }; |
a9049e0c AL |
625 | #define to_phy_driver(d) container_of(to_mdio_common_driver(d), \ |
626 | struct phy_driver, mdiodrv) | |
00db8189 | 627 | |
f62220d3 AF |
628 | #define PHY_ANY_ID "MATCH ANY PHY" |
629 | #define PHY_ANY_UID 0xffffffff | |
630 | ||
631 | /* A Structure for boards to register fixups with the PHY Lib */ | |
632 | struct phy_fixup { | |
633 | struct list_head list; | |
8e401ecc | 634 | char bus_id[20]; |
f62220d3 AF |
635 | u32 phy_uid; |
636 | u32 phy_uid_mask; | |
637 | int (*run)(struct phy_device *phydev); | |
638 | }; | |
639 | ||
efabdfb9 AF |
640 | /** |
641 | * phy_read_mmd - Convenience function for reading a register | |
642 | * from an MMD on a given PHY. | |
643 | * @phydev: The phy_device struct | |
644 | * @devad: The MMD to read from | |
645 | * @regnum: The register on the MMD to read | |
646 | * | |
647 | * Same rules as for phy_read(); | |
648 | */ | |
649 | static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum) | |
650 | { | |
651 | if (!phydev->is_c45) | |
652 | return -EOPNOTSUPP; | |
653 | ||
e5a03bfd | 654 | return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, |
efabdfb9 AF |
655 | MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff)); |
656 | } | |
657 | ||
66ce7fb9 FF |
658 | /** |
659 | * phy_read_mmd_indirect - reads data from the MMD registers | |
660 | * @phydev: The PHY device bus | |
661 | * @prtad: MMD Address | |
66ce7fb9 FF |
662 | * @addr: PHY address on the MII bus |
663 | * | |
664 | * Description: it reads data from the MMD registers (clause 22 to access to | |
665 | * clause 45) of the specified phy address. | |
666 | */ | |
053e7e16 | 667 | int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad); |
66ce7fb9 | 668 | |
2e888103 LB |
669 | /** |
670 | * phy_read - Convenience function for reading a given PHY register | |
671 | * @phydev: the phy_device struct | |
672 | * @regnum: register number to read | |
673 | * | |
674 | * NOTE: MUST NOT be called from interrupt context, | |
675 | * because the bus read/write functions may wait for an interrupt | |
676 | * to conclude the operation. | |
677 | */ | |
abf35df2 | 678 | static inline int phy_read(struct phy_device *phydev, u32 regnum) |
2e888103 | 679 | { |
e5a03bfd | 680 | return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum); |
2e888103 LB |
681 | } |
682 | ||
683 | /** | |
684 | * phy_write - Convenience function for writing a given PHY register | |
685 | * @phydev: the phy_device struct | |
686 | * @regnum: register number to write | |
687 | * @val: value to write to @regnum | |
688 | * | |
689 | * NOTE: MUST NOT be called from interrupt context, | |
690 | * because the bus read/write functions may wait for an interrupt | |
691 | * to conclude the operation. | |
692 | */ | |
abf35df2 | 693 | static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val) |
2e888103 | 694 | { |
e5a03bfd | 695 | return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val); |
2e888103 LB |
696 | } |
697 | ||
2c7b4921 FF |
698 | /** |
699 | * phy_interrupt_is_valid - Convenience function for testing a given PHY irq | |
700 | * @phydev: the phy_device struct | |
701 | * | |
702 | * NOTE: must be kept in sync with addition/removal of PHY_POLL and | |
703 | * PHY_IGNORE_INTERRUPT | |
704 | */ | |
705 | static inline bool phy_interrupt_is_valid(struct phy_device *phydev) | |
706 | { | |
707 | return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT; | |
708 | } | |
709 | ||
4284b6a5 FF |
710 | /** |
711 | * phy_is_internal - Convenience function for testing if a PHY is internal | |
712 | * @phydev: the phy_device struct | |
713 | */ | |
714 | static inline bool phy_is_internal(struct phy_device *phydev) | |
715 | { | |
716 | return phydev->is_internal; | |
717 | } | |
718 | ||
e463d88c FF |
719 | /** |
720 | * phy_interface_is_rgmii - Convenience function for testing if a PHY interface | |
721 | * is RGMII (all variants) | |
722 | * @phydev: the phy_device struct | |
723 | */ | |
724 | static inline bool phy_interface_is_rgmii(struct phy_device *phydev) | |
725 | { | |
726 | return phydev->interface >= PHY_INTERFACE_MODE_RGMII && | |
727 | phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID; | |
5a11dd7d FF |
728 | }; |
729 | ||
730 | /* | |
731 | * phy_is_pseudo_fixed_link - Convenience function for testing if this | |
732 | * PHY is the CPU port facing side of an Ethernet switch, or similar. | |
733 | * @phydev: the phy_device struct | |
734 | */ | |
735 | static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev) | |
736 | { | |
737 | return phydev->is_pseudo_fixed_link; | |
e463d88c FF |
738 | } |
739 | ||
efabdfb9 AF |
740 | /** |
741 | * phy_write_mmd - Convenience function for writing a register | |
742 | * on an MMD on a given PHY. | |
743 | * @phydev: The phy_device struct | |
744 | * @devad: The MMD to read from | |
745 | * @regnum: The register on the MMD to read | |
746 | * @val: value to write to @regnum | |
747 | * | |
748 | * Same rules as for phy_write(); | |
749 | */ | |
750 | static inline int phy_write_mmd(struct phy_device *phydev, int devad, | |
751 | u32 regnum, u16 val) | |
752 | { | |
753 | if (!phydev->is_c45) | |
754 | return -EOPNOTSUPP; | |
755 | ||
756 | regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff); | |
757 | ||
e5a03bfd | 758 | return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val); |
efabdfb9 AF |
759 | } |
760 | ||
66ce7fb9 FF |
761 | /** |
762 | * phy_write_mmd_indirect - writes data to the MMD registers | |
763 | * @phydev: The PHY device | |
764 | * @prtad: MMD Address | |
765 | * @devad: MMD DEVAD | |
66ce7fb9 FF |
766 | * @data: data to write in the MMD register |
767 | * | |
768 | * Description: Write data from the MMD registers of the specified | |
769 | * phy address. | |
770 | */ | |
771 | void phy_write_mmd_indirect(struct phy_device *phydev, int prtad, | |
053e7e16 | 772 | int devad, u32 data); |
66ce7fb9 | 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); | |
ac28b9f8 | 777 | struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); |
4dea547f | 778 | int phy_device_register(struct phy_device *phy); |
38737e49 | 779 | void phy_device_remove(struct phy_device *phydev); |
2f5cb434 | 780 | int phy_init_hw(struct phy_device *phydev); |
481b5d93 SH |
781 | int phy_suspend(struct phy_device *phydev); |
782 | int phy_resume(struct phy_device *phydev); | |
4017b4d3 SS |
783 | struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, |
784 | phy_interface_t interface); | |
f8f76db1 | 785 | struct phy_device *phy_find_first(struct mii_bus *bus); |
257184d7 AF |
786 | int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, |
787 | u32 flags, phy_interface_t interface); | |
fa94f6d9 | 788 | int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, |
4017b4d3 SS |
789 | void (*handler)(struct net_device *), |
790 | phy_interface_t interface); | |
791 | struct phy_device *phy_connect(struct net_device *dev, const char *bus_id, | |
792 | void (*handler)(struct net_device *), | |
793 | phy_interface_t interface); | |
e1393456 AF |
794 | void phy_disconnect(struct phy_device *phydev); |
795 | void phy_detach(struct phy_device *phydev); | |
796 | void phy_start(struct phy_device *phydev); | |
797 | void phy_stop(struct phy_device *phydev); | |
798 | int phy_start_aneg(struct phy_device *phydev); | |
372788f9 | 799 | int phy_aneg_done(struct phy_device *phydev); |
e1393456 | 800 | |
e1393456 | 801 | int phy_stop_interrupts(struct phy_device *phydev); |
00db8189 | 802 | |
4017b4d3 SS |
803 | static inline int phy_read_status(struct phy_device *phydev) |
804 | { | |
00db8189 AF |
805 | return phydev->drv->read_status(phydev); |
806 | } | |
807 | ||
72ba48be | 808 | #define phydev_err(_phydev, format, args...) \ |
e5a03bfd | 809 | dev_err(&_phydev->mdio.dev, format, ##args) |
72ba48be AL |
810 | |
811 | #define phydev_dbg(_phydev, format, args...) \ | |
e5a03bfd | 812 | dev_dbg(&_phydev->mdio.dev, format, ##args); |
72ba48be | 813 | |
84eff6d1 AL |
814 | static inline const char *phydev_name(const struct phy_device *phydev) |
815 | { | |
e5a03bfd | 816 | return dev_name(&phydev->mdio.dev); |
84eff6d1 AL |
817 | } |
818 | ||
2220943a AL |
819 | void phy_attached_print(struct phy_device *phydev, const char *fmt, ...) |
820 | __printf(2, 3); | |
821 | void phy_attached_info(struct phy_device *phydev); | |
af6b6967 | 822 | int genphy_config_init(struct phy_device *phydev); |
3fb69bca | 823 | int genphy_setup_forced(struct phy_device *phydev); |
00db8189 AF |
824 | int genphy_restart_aneg(struct phy_device *phydev); |
825 | int genphy_config_aneg(struct phy_device *phydev); | |
a9fa6e6a | 826 | int genphy_aneg_done(struct phy_device *phydev); |
00db8189 AF |
827 | int genphy_update_link(struct phy_device *phydev); |
828 | int genphy_read_status(struct phy_device *phydev); | |
0f0ca340 GC |
829 | int genphy_suspend(struct phy_device *phydev); |
830 | int genphy_resume(struct phy_device *phydev); | |
797ac071 | 831 | int genphy_soft_reset(struct phy_device *phydev); |
00db8189 | 832 | void phy_driver_unregister(struct phy_driver *drv); |
d5bf9071 | 833 | void phy_drivers_unregister(struct phy_driver *drv, int n); |
be01da72 AL |
834 | int phy_driver_register(struct phy_driver *new_driver, struct module *owner); |
835 | int phy_drivers_register(struct phy_driver *new_driver, int n, | |
836 | struct module *owner); | |
4f9c85a1 | 837 | void phy_state_machine(struct work_struct *work); |
664fcf12 AL |
838 | void phy_change(struct phy_device *phydev); |
839 | void phy_change_work(struct work_struct *work); | |
5ea94e76 | 840 | void phy_mac_interrupt(struct phy_device *phydev, int new_link); |
29935aeb | 841 | void phy_start_machine(struct phy_device *phydev); |
00db8189 AF |
842 | void phy_stop_machine(struct phy_device *phydev); |
843 | int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); | |
844 | int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd); | |
2d55173e PR |
845 | int phy_ethtool_ksettings_get(struct phy_device *phydev, |
846 | struct ethtool_link_ksettings *cmd); | |
847 | int phy_ethtool_ksettings_set(struct phy_device *phydev, | |
848 | const struct ethtool_link_ksettings *cmd); | |
4017b4d3 | 849 | int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); |
e1393456 AF |
850 | int phy_start_interrupts(struct phy_device *phydev); |
851 | void phy_print_status(struct phy_device *phydev); | |
6f4a7f41 | 852 | void phy_device_free(struct phy_device *phydev); |
f3a6bd39 | 853 | int phy_set_max_speed(struct phy_device *phydev, u32 max_speed); |
00db8189 | 854 | |
f62220d3 | 855 | int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, |
4017b4d3 | 856 | int (*run)(struct phy_device *)); |
f62220d3 | 857 | int phy_register_fixup_for_id(const char *bus_id, |
4017b4d3 | 858 | int (*run)(struct phy_device *)); |
f62220d3 | 859 | int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, |
4017b4d3 | 860 | int (*run)(struct phy_device *)); |
f62220d3 | 861 | |
f38e7a32 WH |
862 | int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask); |
863 | int phy_unregister_fixup_for_id(const char *bus_id); | |
864 | int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask); | |
865 | ||
a59a4d19 GC |
866 | int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); |
867 | int phy_get_eee_err(struct phy_device *phydev); | |
868 | int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); | |
869 | int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); | |
42e836eb | 870 | int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); |
4017b4d3 SS |
871 | void phy_ethtool_get_wol(struct phy_device *phydev, |
872 | struct ethtool_wolinfo *wol); | |
9d9a77ce PR |
873 | int phy_ethtool_get_link_ksettings(struct net_device *ndev, |
874 | struct ethtool_link_ksettings *cmd); | |
875 | int phy_ethtool_set_link_ksettings(struct net_device *ndev, | |
876 | const struct ethtool_link_ksettings *cmd); | |
e86a8987 | 877 | int phy_ethtool_nway_reset(struct net_device *ndev); |
a59a4d19 | 878 | |
9b9a8bfc AF |
879 | int __init mdio_bus_init(void); |
880 | void mdio_bus_exit(void); | |
881 | ||
00db8189 | 882 | extern struct bus_type mdio_bus_type; |
c31accd1 JH |
883 | |
884 | /** | |
885 | * module_phy_driver() - Helper macro for registering PHY drivers | |
886 | * @__phy_drivers: array of PHY drivers to register | |
887 | * | |
888 | * Helper macro for PHY drivers which do not do anything special in module | |
889 | * init/exit. Each module may only use this macro once, and calling it | |
890 | * replaces module_init() and module_exit(). | |
891 | */ | |
892 | #define phy_module_driver(__phy_drivers, __count) \ | |
893 | static int __init phy_module_init(void) \ | |
894 | { \ | |
be01da72 | 895 | return phy_drivers_register(__phy_drivers, __count, THIS_MODULE); \ |
c31accd1 JH |
896 | } \ |
897 | module_init(phy_module_init); \ | |
898 | static void __exit phy_module_exit(void) \ | |
899 | { \ | |
900 | phy_drivers_unregister(__phy_drivers, __count); \ | |
901 | } \ | |
902 | module_exit(phy_module_exit) | |
903 | ||
904 | #define module_phy_driver(__phy_drivers) \ | |
905 | phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers)) | |
906 | ||
00db8189 | 907 | #endif /* __PHY_H */ |