1 /* 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 19 #include <linux/spinlock.h> 20 #include <linux/ethtool.h> 21 #include <linux/mii.h> 22 #include <linux/timer.h> 23 #include <linux/workqueue.h> 24 #include <linux/mod_devicetable.h> 25 26 #include <linux/atomic.h> 27 28 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \ 29 SUPPORTED_TP | \ 30 SUPPORTED_MII) 31 32 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \ 33 SUPPORTED_10baseT_Full) 34 35 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \ 36 SUPPORTED_100baseT_Full) 37 38 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \ 39 SUPPORTED_1000baseT_Full) 40 41 #define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \ 42 PHY_100BT_FEATURES | \ 43 PHY_DEFAULT_FEATURES) 44 45 #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \ 46 PHY_1000BT_FEATURES) 47 48 49 /* 50 * Set phydev->irq to PHY_POLL if interrupts are not supported, 51 * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if 52 * the attached driver handles the interrupt 53 */ 54 #define PHY_POLL -1 55 #define PHY_IGNORE_INTERRUPT -2 56 57 #define PHY_HAS_INTERRUPT 0x00000001 58 #define PHY_HAS_MAGICANEG 0x00000002 59 #define PHY_IS_INTERNAL 0x00000004 60 61 /* Interface Mode definitions */ 62 typedef enum { 63 PHY_INTERFACE_MODE_NA, 64 PHY_INTERFACE_MODE_MII, 65 PHY_INTERFACE_MODE_GMII, 66 PHY_INTERFACE_MODE_SGMII, 67 PHY_INTERFACE_MODE_TBI, 68 PHY_INTERFACE_MODE_REVMII, 69 PHY_INTERFACE_MODE_RMII, 70 PHY_INTERFACE_MODE_RGMII, 71 PHY_INTERFACE_MODE_RGMII_ID, 72 PHY_INTERFACE_MODE_RGMII_RXID, 73 PHY_INTERFACE_MODE_RGMII_TXID, 74 PHY_INTERFACE_MODE_RTBI, 75 PHY_INTERFACE_MODE_SMII, 76 PHY_INTERFACE_MODE_XGMII, 77 PHY_INTERFACE_MODE_MOCA, 78 PHY_INTERFACE_MODE_QSGMII, 79 PHY_INTERFACE_MODE_MAX, 80 } phy_interface_t; 81 82 /** 83 * It maps 'enum phy_interface_t' found in include/linux/phy.h 84 * into the device tree binding of 'phy-mode', so that Ethernet 85 * device driver can get phy interface from device tree. 86 */ 87 static inline const char *phy_modes(phy_interface_t interface) 88 { 89 switch (interface) { 90 case PHY_INTERFACE_MODE_NA: 91 return ""; 92 case PHY_INTERFACE_MODE_MII: 93 return "mii"; 94 case PHY_INTERFACE_MODE_GMII: 95 return "gmii"; 96 case PHY_INTERFACE_MODE_SGMII: 97 return "sgmii"; 98 case PHY_INTERFACE_MODE_TBI: 99 return "tbi"; 100 case PHY_INTERFACE_MODE_REVMII: 101 return "rev-mii"; 102 case PHY_INTERFACE_MODE_RMII: 103 return "rmii"; 104 case PHY_INTERFACE_MODE_RGMII: 105 return "rgmii"; 106 case PHY_INTERFACE_MODE_RGMII_ID: 107 return "rgmii-id"; 108 case PHY_INTERFACE_MODE_RGMII_RXID: 109 return "rgmii-rxid"; 110 case PHY_INTERFACE_MODE_RGMII_TXID: 111 return "rgmii-txid"; 112 case PHY_INTERFACE_MODE_RTBI: 113 return "rtbi"; 114 case PHY_INTERFACE_MODE_SMII: 115 return "smii"; 116 case PHY_INTERFACE_MODE_XGMII: 117 return "xgmii"; 118 case PHY_INTERFACE_MODE_MOCA: 119 return "moca"; 120 case PHY_INTERFACE_MODE_QSGMII: 121 return "qsgmii"; 122 default: 123 return "unknown"; 124 } 125 } 126 127 128 #define PHY_INIT_TIMEOUT 100000 129 #define PHY_STATE_TIME 1 130 #define PHY_FORCE_TIMEOUT 10 131 #define PHY_AN_TIMEOUT 10 132 133 #define PHY_MAX_ADDR 32 134 135 /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ 136 #define PHY_ID_FMT "%s:%02x" 137 138 /* 139 * Need to be a little smaller than phydev->dev.bus_id to leave room 140 * for the ":%02x" 141 */ 142 #define MII_BUS_ID_SIZE (20 - 3) 143 144 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit 145 IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */ 146 #define MII_ADDR_C45 (1<<30) 147 148 struct device; 149 struct sk_buff; 150 151 /* 152 * The Bus class for PHYs. Devices which provide access to 153 * PHYs should register using this structure 154 */ 155 struct mii_bus { 156 const char *name; 157 char id[MII_BUS_ID_SIZE]; 158 void *priv; 159 int (*read)(struct mii_bus *bus, int phy_id, int regnum); 160 int (*write)(struct mii_bus *bus, int phy_id, int regnum, u16 val); 161 int (*reset)(struct mii_bus *bus); 162 163 /* 164 * A lock to ensure that only one thing can read/write 165 * the MDIO bus at a time 166 */ 167 struct mutex mdio_lock; 168 169 struct device *parent; 170 enum { 171 MDIOBUS_ALLOCATED = 1, 172 MDIOBUS_REGISTERED, 173 MDIOBUS_UNREGISTERED, 174 MDIOBUS_RELEASED, 175 } state; 176 struct device dev; 177 178 /* list of all PHYs on bus */ 179 struct phy_device *phy_map[PHY_MAX_ADDR]; 180 181 /* PHY addresses to be ignored when probing */ 182 u32 phy_mask; 183 184 /* 185 * Pointer to an array of interrupts, each PHY's 186 * interrupt at the index matching its address 187 */ 188 int *irq; 189 }; 190 #define to_mii_bus(d) container_of(d, struct mii_bus, dev) 191 192 struct mii_bus *mdiobus_alloc_size(size_t); 193 static inline struct mii_bus *mdiobus_alloc(void) 194 { 195 return mdiobus_alloc_size(0); 196 } 197 198 int mdiobus_register(struct mii_bus *bus); 199 void mdiobus_unregister(struct mii_bus *bus); 200 void mdiobus_free(struct mii_bus *bus); 201 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv); 202 static inline struct mii_bus *devm_mdiobus_alloc(struct device *dev) 203 { 204 return devm_mdiobus_alloc_size(dev, 0); 205 } 206 207 void devm_mdiobus_free(struct device *dev, struct mii_bus *bus); 208 struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); 209 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum); 210 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val); 211 212 213 #define PHY_INTERRUPT_DISABLED 0x0 214 #define PHY_INTERRUPT_ENABLED 0x80000000 215 216 /* PHY state machine states: 217 * 218 * DOWN: PHY device and driver are not ready for anything. probe 219 * should be called if and only if the PHY is in this state, 220 * given that the PHY device exists. 221 * - PHY driver probe function will, depending on the PHY, set 222 * the state to STARTING or READY 223 * 224 * STARTING: PHY device is coming up, and the ethernet driver is 225 * not ready. PHY drivers may set this in the probe function. 226 * If they do, they are responsible for making sure the state is 227 * eventually set to indicate whether the PHY is UP or READY, 228 * depending on the state when the PHY is done starting up. 229 * - PHY driver will set the state to READY 230 * - start will set the state to PENDING 231 * 232 * READY: PHY is ready to send and receive packets, but the 233 * controller is not. By default, PHYs which do not implement 234 * probe will be set to this state by phy_probe(). If the PHY 235 * driver knows the PHY is ready, and the PHY state is STARTING, 236 * then it sets this STATE. 237 * - start will set the state to UP 238 * 239 * PENDING: PHY device is coming up, but the ethernet driver is 240 * ready. phy_start will set this state if the PHY state is 241 * STARTING. 242 * - PHY driver will set the state to UP when the PHY is ready 243 * 244 * UP: The PHY and attached device are ready to do work. 245 * Interrupts should be started here. 246 * - timer moves to AN 247 * 248 * AN: The PHY is currently negotiating the link state. Link is 249 * therefore down for now. phy_timer will set this state when it 250 * detects the state is UP. config_aneg will set this state 251 * whenever called with phydev->autoneg set to AUTONEG_ENABLE. 252 * - If autonegotiation finishes, but there's no link, it sets 253 * the state to NOLINK. 254 * - If aneg finishes with link, it sets the state to RUNNING, 255 * and calls adjust_link 256 * - If autonegotiation did not finish after an arbitrary amount 257 * of time, autonegotiation should be tried again if the PHY 258 * supports "magic" autonegotiation (back to AN) 259 * - If it didn't finish, and no magic_aneg, move to FORCING. 260 * 261 * NOLINK: PHY is up, but not currently plugged in. 262 * - If the timer notes that the link comes back, we move to RUNNING 263 * - config_aneg moves to AN 264 * - phy_stop moves to HALTED 265 * 266 * FORCING: PHY is being configured with forced settings 267 * - if link is up, move to RUNNING 268 * - If link is down, we drop to the next highest setting, and 269 * retry (FORCING) after a timeout 270 * - phy_stop moves to HALTED 271 * 272 * RUNNING: PHY is currently up, running, and possibly sending 273 * and/or receiving packets 274 * - timer will set CHANGELINK if we're polling (this ensures the 275 * link state is polled every other cycle of this state machine, 276 * which makes it every other second) 277 * - irq will set CHANGELINK 278 * - config_aneg will set AN 279 * - phy_stop moves to HALTED 280 * 281 * CHANGELINK: PHY experienced a change in link state 282 * - timer moves to RUNNING if link 283 * - timer moves to NOLINK if the link is down 284 * - phy_stop moves to HALTED 285 * 286 * HALTED: PHY is up, but no polling or interrupts are done. Or 287 * PHY is in an error state. 288 * 289 * - phy_start moves to RESUMING 290 * 291 * RESUMING: PHY was halted, but now wants to run again. 292 * - If we are forcing, or aneg is done, timer moves to RUNNING 293 * - If aneg is not done, timer moves to AN 294 * - phy_stop moves to HALTED 295 */ 296 enum phy_state { 297 PHY_DOWN = 0, 298 PHY_STARTING, 299 PHY_READY, 300 PHY_PENDING, 301 PHY_UP, 302 PHY_AN, 303 PHY_RUNNING, 304 PHY_NOLINK, 305 PHY_FORCING, 306 PHY_CHANGELINK, 307 PHY_HALTED, 308 PHY_RESUMING 309 }; 310 311 /** 312 * struct phy_c45_device_ids - 802.3-c45 Device Identifiers 313 * @devices_in_package: Bit vector of devices present. 314 * @device_ids: The device identifer for each present device. 315 */ 316 struct phy_c45_device_ids { 317 u32 devices_in_package; 318 u32 device_ids[8]; 319 }; 320 321 /* phy_device: An instance of a PHY 322 * 323 * drv: Pointer to the driver for this PHY instance 324 * bus: Pointer to the bus this PHY is on 325 * dev: driver model device structure for this PHY 326 * phy_id: UID for this device found during discovery 327 * c45_ids: 802.3-c45 Device Identifers if is_c45. 328 * is_c45: Set to true if this phy uses clause 45 addressing. 329 * is_internal: Set to true if this phy is internal to a MAC. 330 * state: state of the PHY for management purposes 331 * dev_flags: Device-specific flags used by the PHY driver. 332 * addr: Bus address of PHY 333 * link_timeout: The number of timer firings to wait before the 334 * giving up on the current attempt at acquiring a link 335 * irq: IRQ number of the PHY's interrupt (-1 if none) 336 * phy_timer: The timer for handling the state machine 337 * phy_queue: A work_queue for the interrupt 338 * attached_dev: The attached enet driver's device instance ptr 339 * adjust_link: Callback for the enet controller to respond to 340 * changes in the link state. 341 * 342 * speed, duplex, pause, supported, advertising, lp_advertising, 343 * and autoneg are used like in mii_if_info 344 * 345 * interrupts currently only supports enabled or disabled, 346 * but could be changed in the future to support enabling 347 * and disabling specific interrupts 348 * 349 * Contains some infrastructure for polling and interrupt 350 * handling, as well as handling shifts in PHY hardware state 351 */ 352 struct phy_device { 353 /* Information about the PHY type */ 354 /* And management functions */ 355 struct phy_driver *drv; 356 357 struct mii_bus *bus; 358 359 struct device dev; 360 361 u32 phy_id; 362 363 struct phy_c45_device_ids c45_ids; 364 bool is_c45; 365 bool is_internal; 366 bool has_fixups; 367 368 enum phy_state state; 369 370 u32 dev_flags; 371 372 phy_interface_t interface; 373 374 /* Bus address of the PHY (0-31) */ 375 int addr; 376 377 /* 378 * forced speed & duplex (no autoneg) 379 * partner speed & duplex & pause (autoneg) 380 */ 381 int speed; 382 int duplex; 383 int pause; 384 int asym_pause; 385 386 /* The most recently read link state */ 387 int link; 388 389 /* Enabled Interrupts */ 390 u32 interrupts; 391 392 /* Union of PHY and Attached devices' supported modes */ 393 /* See mii.h for more info */ 394 u32 supported; 395 u32 advertising; 396 u32 lp_advertising; 397 398 int autoneg; 399 400 int link_timeout; 401 402 /* 403 * Interrupt number for this PHY 404 * -1 means no interrupt 405 */ 406 int irq; 407 408 /* private data pointer */ 409 /* For use by PHYs to maintain extra state */ 410 void *priv; 411 412 /* Interrupt and Polling infrastructure */ 413 struct work_struct phy_queue; 414 struct delayed_work state_queue; 415 atomic_t irq_disable; 416 417 struct mutex lock; 418 419 struct net_device *attached_dev; 420 421 void (*adjust_link)(struct net_device *dev); 422 }; 423 #define to_phy_device(d) container_of(d, struct phy_device, dev) 424 425 /* struct phy_driver: Driver structure for a particular PHY type 426 * 427 * phy_id: The result of reading the UID registers of this PHY 428 * type, and ANDing them with the phy_id_mask. This driver 429 * only works for PHYs with IDs which match this field 430 * name: The friendly name of this PHY type 431 * phy_id_mask: Defines the important bits of the phy_id 432 * features: A list of features (speed, duplex, etc) supported 433 * by this PHY 434 * flags: A bitfield defining certain other features this PHY 435 * supports (like interrupts) 436 * 437 * The drivers must implement config_aneg and read_status. All 438 * other functions are optional. Note that none of these 439 * functions should be called from interrupt time. The goal is 440 * for the bus read/write functions to be able to block when the 441 * bus transaction is happening, and be freed up by an interrupt 442 * (The MPC85xx has this ability, though it is not currently 443 * supported in the driver). 444 */ 445 struct phy_driver { 446 u32 phy_id; 447 char *name; 448 unsigned int phy_id_mask; 449 u32 features; 450 u32 flags; 451 452 /* 453 * Called to issue a PHY software reset 454 */ 455 int (*soft_reset)(struct phy_device *phydev); 456 457 /* 458 * Called to initialize the PHY, 459 * including after a reset 460 */ 461 int (*config_init)(struct phy_device *phydev); 462 463 /* 464 * Called during discovery. Used to set 465 * up device-specific structures, if any 466 */ 467 int (*probe)(struct phy_device *phydev); 468 469 /* PHY Power Management */ 470 int (*suspend)(struct phy_device *phydev); 471 int (*resume)(struct phy_device *phydev); 472 473 /* 474 * Configures the advertisement and resets 475 * autonegotiation if phydev->autoneg is on, 476 * forces the speed to the current settings in phydev 477 * if phydev->autoneg is off 478 */ 479 int (*config_aneg)(struct phy_device *phydev); 480 481 /* Determines the auto negotiation result */ 482 int (*aneg_done)(struct phy_device *phydev); 483 484 /* Determines the negotiated speed and duplex */ 485 int (*read_status)(struct phy_device *phydev); 486 487 /* Clears any pending interrupts */ 488 int (*ack_interrupt)(struct phy_device *phydev); 489 490 /* Enables or disables interrupts */ 491 int (*config_intr)(struct phy_device *phydev); 492 493 /* 494 * Checks if the PHY generated an interrupt. 495 * For multi-PHY devices with shared PHY interrupt pin 496 */ 497 int (*did_interrupt)(struct phy_device *phydev); 498 499 /* Clears up any memory if needed */ 500 void (*remove)(struct phy_device *phydev); 501 502 /* Returns true if this is a suitable driver for the given 503 * phydev. If NULL, matching is based on phy_id and 504 * phy_id_mask. 505 */ 506 int (*match_phy_device)(struct phy_device *phydev); 507 508 /* Handles ethtool queries for hardware time stamping. */ 509 int (*ts_info)(struct phy_device *phydev, struct ethtool_ts_info *ti); 510 511 /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */ 512 int (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr); 513 514 /* 515 * Requests a Rx timestamp for 'skb'. If the skb is accepted, 516 * the phy driver promises to deliver it using netif_rx() as 517 * soon as a timestamp becomes available. One of the 518 * PTP_CLASS_ values is passed in 'type'. The function must 519 * return true if the skb is accepted for delivery. 520 */ 521 bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); 522 523 /* 524 * Requests a Tx timestamp for 'skb'. The phy driver promises 525 * to deliver it using skb_complete_tx_timestamp() as soon as a 526 * timestamp becomes available. One of the PTP_CLASS_ values 527 * is passed in 'type'. 528 */ 529 void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type); 530 531 /* Some devices (e.g. qnap TS-119P II) require PHY register changes to 532 * enable Wake on LAN, so set_wol is provided to be called in the 533 * ethernet driver's set_wol function. */ 534 int (*set_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); 535 536 /* See set_wol, but for checking whether Wake on LAN is enabled. */ 537 void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); 538 539 /* 540 * Called to inform a PHY device driver when the core is about to 541 * change the link state. This callback is supposed to be used as 542 * fixup hook for drivers that need to take action when the link 543 * state changes. Drivers are by no means allowed to mess with the 544 * PHY device structure in their implementations. 545 */ 546 void (*link_change_notify)(struct phy_device *dev); 547 548 /* A function provided by a phy specific driver to override the 549 * the PHY driver framework support for reading a MMD register 550 * from the PHY. If not supported, return -1. This function is 551 * optional for PHY specific drivers, if not provided then the 552 * default MMD read function is used by the PHY framework. 553 */ 554 int (*read_mmd_indirect)(struct phy_device *dev, int ptrad, 555 int devnum, int regnum); 556 557 /* A function provided by a phy specific driver to override the 558 * the PHY driver framework support for writing a MMD register 559 * from the PHY. This function is optional for PHY specific drivers, 560 * if not provided then the default MMD read function is used by 561 * the PHY framework. 562 */ 563 void (*write_mmd_indirect)(struct phy_device *dev, int ptrad, 564 int devnum, int regnum, u32 val); 565 566 struct device_driver driver; 567 }; 568 #define to_phy_driver(d) container_of(d, struct phy_driver, driver) 569 570 #define PHY_ANY_ID "MATCH ANY PHY" 571 #define PHY_ANY_UID 0xffffffff 572 573 /* A Structure for boards to register fixups with the PHY Lib */ 574 struct phy_fixup { 575 struct list_head list; 576 char bus_id[20]; 577 u32 phy_uid; 578 u32 phy_uid_mask; 579 int (*run)(struct phy_device *phydev); 580 }; 581 582 /** 583 * phy_read_mmd - Convenience function for reading a register 584 * from an MMD on a given PHY. 585 * @phydev: The phy_device struct 586 * @devad: The MMD to read from 587 * @regnum: The register on the MMD to read 588 * 589 * Same rules as for phy_read(); 590 */ 591 static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum) 592 { 593 if (!phydev->is_c45) 594 return -EOPNOTSUPP; 595 596 return mdiobus_read(phydev->bus, phydev->addr, 597 MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff)); 598 } 599 600 /** 601 * phy_read_mmd_indirect - reads data from the MMD registers 602 * @phydev: The PHY device bus 603 * @prtad: MMD Address 604 * @devad: MMD DEVAD 605 * @addr: PHY address on the MII bus 606 * 607 * Description: it reads data from the MMD registers (clause 22 to access to 608 * clause 45) of the specified phy address. 609 */ 610 int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, 611 int devad, int addr); 612 613 /** 614 * phy_read - Convenience function for reading a given PHY register 615 * @phydev: the phy_device struct 616 * @regnum: register number to read 617 * 618 * NOTE: MUST NOT be called from interrupt context, 619 * because the bus read/write functions may wait for an interrupt 620 * to conclude the operation. 621 */ 622 static inline int phy_read(struct phy_device *phydev, u32 regnum) 623 { 624 return mdiobus_read(phydev->bus, phydev->addr, regnum); 625 } 626 627 /** 628 * phy_write - Convenience function for writing a given PHY register 629 * @phydev: the phy_device struct 630 * @regnum: register number to write 631 * @val: value to write to @regnum 632 * 633 * NOTE: MUST NOT be called from interrupt context, 634 * because the bus read/write functions may wait for an interrupt 635 * to conclude the operation. 636 */ 637 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val) 638 { 639 return mdiobus_write(phydev->bus, phydev->addr, regnum, val); 640 } 641 642 /** 643 * phy_interrupt_is_valid - Convenience function for testing a given PHY irq 644 * @phydev: the phy_device struct 645 * 646 * NOTE: must be kept in sync with addition/removal of PHY_POLL and 647 * PHY_IGNORE_INTERRUPT 648 */ 649 static inline bool phy_interrupt_is_valid(struct phy_device *phydev) 650 { 651 return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT; 652 } 653 654 /** 655 * phy_is_internal - Convenience function for testing if a PHY is internal 656 * @phydev: the phy_device struct 657 */ 658 static inline bool phy_is_internal(struct phy_device *phydev) 659 { 660 return phydev->is_internal; 661 } 662 663 /** 664 * phy_write_mmd - Convenience function for writing a register 665 * on an MMD on a given PHY. 666 * @phydev: The phy_device struct 667 * @devad: The MMD to read from 668 * @regnum: The register on the MMD to read 669 * @val: value to write to @regnum 670 * 671 * Same rules as for phy_write(); 672 */ 673 static inline int phy_write_mmd(struct phy_device *phydev, int devad, 674 u32 regnum, u16 val) 675 { 676 if (!phydev->is_c45) 677 return -EOPNOTSUPP; 678 679 regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff); 680 681 return mdiobus_write(phydev->bus, phydev->addr, regnum, val); 682 } 683 684 /** 685 * phy_write_mmd_indirect - writes data to the MMD registers 686 * @phydev: The PHY device 687 * @prtad: MMD Address 688 * @devad: MMD DEVAD 689 * @addr: PHY address on the MII bus 690 * @data: data to write in the MMD register 691 * 692 * Description: Write data from the MMD registers of the specified 693 * phy address. 694 */ 695 void phy_write_mmd_indirect(struct phy_device *phydev, int prtad, 696 int devad, int addr, u32 data); 697 698 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, 699 bool is_c45, 700 struct phy_c45_device_ids *c45_ids); 701 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); 702 int phy_device_register(struct phy_device *phy); 703 int phy_init_hw(struct phy_device *phydev); 704 int phy_suspend(struct phy_device *phydev); 705 int phy_resume(struct phy_device *phydev); 706 struct phy_device *phy_attach(struct net_device *dev, const char *bus_id, 707 phy_interface_t interface); 708 struct phy_device *phy_find_first(struct mii_bus *bus); 709 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, 710 u32 flags, phy_interface_t interface); 711 int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, 712 void (*handler)(struct net_device *), 713 phy_interface_t interface); 714 struct phy_device *phy_connect(struct net_device *dev, const char *bus_id, 715 void (*handler)(struct net_device *), 716 phy_interface_t interface); 717 void phy_disconnect(struct phy_device *phydev); 718 void phy_detach(struct phy_device *phydev); 719 void phy_start(struct phy_device *phydev); 720 void phy_stop(struct phy_device *phydev); 721 int phy_start_aneg(struct phy_device *phydev); 722 723 int phy_stop_interrupts(struct phy_device *phydev); 724 725 static inline int phy_read_status(struct phy_device *phydev) 726 { 727 return phydev->drv->read_status(phydev); 728 } 729 730 int genphy_config_init(struct phy_device *phydev); 731 int genphy_setup_forced(struct phy_device *phydev); 732 int genphy_restart_aneg(struct phy_device *phydev); 733 int genphy_config_aneg(struct phy_device *phydev); 734 int genphy_aneg_done(struct phy_device *phydev); 735 int genphy_update_link(struct phy_device *phydev); 736 int genphy_read_status(struct phy_device *phydev); 737 int genphy_suspend(struct phy_device *phydev); 738 int genphy_resume(struct phy_device *phydev); 739 int genphy_soft_reset(struct phy_device *phydev); 740 void phy_driver_unregister(struct phy_driver *drv); 741 void phy_drivers_unregister(struct phy_driver *drv, int n); 742 int phy_driver_register(struct phy_driver *new_driver); 743 int phy_drivers_register(struct phy_driver *new_driver, int n); 744 void phy_state_machine(struct work_struct *work); 745 void phy_change(struct work_struct *work); 746 void phy_mac_interrupt(struct phy_device *phydev, int new_link); 747 void phy_start_machine(struct phy_device *phydev); 748 void phy_stop_machine(struct phy_device *phydev); 749 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); 750 int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd); 751 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); 752 int phy_start_interrupts(struct phy_device *phydev); 753 void phy_print_status(struct phy_device *phydev); 754 void phy_device_free(struct phy_device *phydev); 755 756 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, 757 int (*run)(struct phy_device *)); 758 int phy_register_fixup_for_id(const char *bus_id, 759 int (*run)(struct phy_device *)); 760 int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, 761 int (*run)(struct phy_device *)); 762 763 int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); 764 int phy_get_eee_err(struct phy_device *phydev); 765 int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); 766 int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); 767 int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol); 768 void phy_ethtool_get_wol(struct phy_device *phydev, 769 struct ethtool_wolinfo *wol); 770 771 int __init mdio_bus_init(void); 772 void mdio_bus_exit(void); 773 774 extern struct bus_type mdio_bus_type; 775 #endif /* __PHY_H */ 776