Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 1 | /* |
| 2 | * include/linux/phy.h |
| 3 | * |
| 4 | * Framework and drivers for configuring and reading different PHYs |
| 5 | * Based on code in sungem_phy.c and gianfar_phy.c |
| 6 | * |
| 7 | * Author: Andy Fleming |
| 8 | * |
| 9 | * Copyright (c) 2004 Freescale Semiconductor, Inc. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your |
| 14 | * option) any later version. |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #ifndef __PHY_H |
| 19 | #define __PHY_H |
| 20 | |
| 21 | #include <linux/spinlock.h> |
| 22 | #include <linux/device.h> |
Maciej W. Rozycki | 13df29f | 2006-10-03 16:18:28 +0100 | [diff] [blame] | 23 | #include <linux/ethtool.h> |
| 24 | #include <linux/mii.h> |
| 25 | #include <linux/timer.h> |
| 26 | #include <linux/workqueue.h> |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 27 | |
Maciej W. Rozycki | 0ac4952 | 2007-09-28 22:42:14 -0700 | [diff] [blame] | 28 | #include <asm/atomic.h> |
| 29 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 30 | #define PHY_BASIC_FEATURES (SUPPORTED_10baseT_Half | \ |
| 31 | SUPPORTED_10baseT_Full | \ |
| 32 | SUPPORTED_100baseT_Half | \ |
| 33 | SUPPORTED_100baseT_Full | \ |
| 34 | SUPPORTED_Autoneg | \ |
| 35 | SUPPORTED_TP | \ |
| 36 | SUPPORTED_MII) |
| 37 | |
| 38 | #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \ |
| 39 | SUPPORTED_1000baseT_Half | \ |
| 40 | SUPPORTED_1000baseT_Full) |
| 41 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 42 | /* |
| 43 | * Set phydev->irq to PHY_POLL if interrupts are not supported, |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 44 | * or not desired for this PHY. Set to PHY_IGNORE_INTERRUPT if |
| 45 | * the attached driver handles the interrupt |
| 46 | */ |
| 47 | #define PHY_POLL -1 |
| 48 | #define PHY_IGNORE_INTERRUPT -2 |
| 49 | |
| 50 | #define PHY_HAS_INTERRUPT 0x00000001 |
| 51 | #define PHY_HAS_MAGICANEG 0x00000002 |
| 52 | |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 53 | /* Interface Mode definitions */ |
| 54 | typedef enum { |
| 55 | PHY_INTERFACE_MODE_MII, |
| 56 | PHY_INTERFACE_MODE_GMII, |
| 57 | PHY_INTERFACE_MODE_SGMII, |
| 58 | PHY_INTERFACE_MODE_TBI, |
| 59 | PHY_INTERFACE_MODE_RMII, |
| 60 | PHY_INTERFACE_MODE_RGMII, |
Kim Phillips | a999589 | 2007-04-13 01:25:57 -0500 | [diff] [blame] | 61 | PHY_INTERFACE_MODE_RGMII_ID, |
Kim Phillips | 7d400a4 | 2007-11-26 16:17:48 -0600 | [diff] [blame] | 62 | PHY_INTERFACE_MODE_RGMII_RXID, |
| 63 | PHY_INTERFACE_MODE_RGMII_TXID, |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 64 | PHY_INTERFACE_MODE_RTBI |
| 65 | } phy_interface_t; |
| 66 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 67 | |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 68 | #define PHY_INIT_TIMEOUT 100000 |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 69 | #define PHY_STATE_TIME 1 |
| 70 | #define PHY_FORCE_TIMEOUT 10 |
| 71 | #define PHY_AN_TIMEOUT 10 |
| 72 | |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 73 | #define PHY_MAX_ADDR 32 |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 74 | |
Kumar Gala | a4d00f1 | 2006-01-11 11:27:33 -0800 | [diff] [blame] | 75 | /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ |
Andy Fleming | 9d9326d | 2008-04-09 19:38:13 -0500 | [diff] [blame] | 76 | #define PHY_ID_FMT "%s:%02x" |
| 77 | |
| 78 | /* |
| 79 | * Need to be a little smaller than phydev->dev.bus_id to leave room |
| 80 | * for the ":%02x" |
| 81 | */ |
| 82 | #define MII_BUS_ID_SIZE (BUS_ID_SIZE - 3) |
Kumar Gala | a4d00f1 | 2006-01-11 11:27:33 -0800 | [diff] [blame] | 83 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 84 | /* |
| 85 | * The Bus class for PHYs. Devices which provide access to |
| 86 | * PHYs should register using this structure |
| 87 | */ |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 88 | struct mii_bus { |
| 89 | const char *name; |
Andy Fleming | 9d9326d | 2008-04-09 19:38:13 -0500 | [diff] [blame] | 90 | char id[MII_BUS_ID_SIZE]; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 91 | void *priv; |
| 92 | int (*read)(struct mii_bus *bus, int phy_id, int regnum); |
| 93 | int (*write)(struct mii_bus *bus, int phy_id, int regnum, u16 val); |
| 94 | int (*reset)(struct mii_bus *bus); |
| 95 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 96 | /* |
| 97 | * A lock to ensure that only one thing can read/write |
| 98 | * the MDIO bus at a time |
| 99 | */ |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 100 | struct mutex mdio_lock; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 101 | |
Lennert Buytenhek | 18ee49d | 2008-10-01 15:41:33 +0000 | [diff] [blame] | 102 | struct device *parent; |
Lennert Buytenhek | 46abc02 | 2008-10-08 16:33:40 -0700 | [diff] [blame] | 103 | enum { |
| 104 | MDIOBUS_ALLOCATED = 1, |
| 105 | MDIOBUS_REGISTERED, |
| 106 | MDIOBUS_UNREGISTERED, |
| 107 | MDIOBUS_RELEASED, |
| 108 | } state; |
| 109 | struct device dev; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 110 | |
| 111 | /* list of all PHYs on bus */ |
| 112 | struct phy_device *phy_map[PHY_MAX_ADDR]; |
| 113 | |
Matt Porter | f896424 | 2005-11-02 16:13:06 -0700 | [diff] [blame] | 114 | /* Phy addresses to be ignored when probing */ |
| 115 | u32 phy_mask; |
| 116 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 117 | /* |
| 118 | * Pointer to an array of interrupts, each PHY's |
| 119 | * interrupt at the index matching its address |
| 120 | */ |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 121 | int *irq; |
| 122 | }; |
Lennert Buytenhek | 46abc02 | 2008-10-08 16:33:40 -0700 | [diff] [blame] | 123 | #define to_mii_bus(d) container_of(d, struct mii_bus, dev) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 124 | |
Lennert Buytenhek | 2e88810 | 2008-09-29 17:12:35 +0000 | [diff] [blame] | 125 | struct mii_bus *mdiobus_alloc(void); |
| 126 | int mdiobus_register(struct mii_bus *bus); |
| 127 | void mdiobus_unregister(struct mii_bus *bus); |
| 128 | void mdiobus_free(struct mii_bus *bus); |
| 129 | struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr); |
| 130 | int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum); |
| 131 | int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val); |
| 132 | |
| 133 | |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 134 | #define PHY_INTERRUPT_DISABLED 0x0 |
| 135 | #define PHY_INTERRUPT_ENABLED 0x80000000 |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 136 | |
| 137 | /* PHY state machine states: |
| 138 | * |
| 139 | * DOWN: PHY device and driver are not ready for anything. probe |
| 140 | * should be called if and only if the PHY is in this state, |
| 141 | * given that the PHY device exists. |
| 142 | * - PHY driver probe function will, depending on the PHY, set |
| 143 | * the state to STARTING or READY |
| 144 | * |
| 145 | * STARTING: PHY device is coming up, and the ethernet driver is |
| 146 | * not ready. PHY drivers may set this in the probe function. |
| 147 | * If they do, they are responsible for making sure the state is |
| 148 | * eventually set to indicate whether the PHY is UP or READY, |
| 149 | * depending on the state when the PHY is done starting up. |
| 150 | * - PHY driver will set the state to READY |
| 151 | * - start will set the state to PENDING |
| 152 | * |
| 153 | * READY: PHY is ready to send and receive packets, but the |
| 154 | * controller is not. By default, PHYs which do not implement |
| 155 | * probe will be set to this state by phy_probe(). If the PHY |
| 156 | * driver knows the PHY is ready, and the PHY state is STARTING, |
| 157 | * then it sets this STATE. |
| 158 | * - start will set the state to UP |
| 159 | * |
| 160 | * PENDING: PHY device is coming up, but the ethernet driver is |
| 161 | * ready. phy_start will set this state if the PHY state is |
| 162 | * STARTING. |
| 163 | * - PHY driver will set the state to UP when the PHY is ready |
| 164 | * |
| 165 | * UP: The PHY and attached device are ready to do work. |
| 166 | * Interrupts should be started here. |
| 167 | * - timer moves to AN |
| 168 | * |
| 169 | * AN: The PHY is currently negotiating the link state. Link is |
| 170 | * therefore down for now. phy_timer will set this state when it |
| 171 | * detects the state is UP. config_aneg will set this state |
| 172 | * whenever called with phydev->autoneg set to AUTONEG_ENABLE. |
| 173 | * - If autonegotiation finishes, but there's no link, it sets |
| 174 | * the state to NOLINK. |
| 175 | * - If aneg finishes with link, it sets the state to RUNNING, |
| 176 | * and calls adjust_link |
| 177 | * - If autonegotiation did not finish after an arbitrary amount |
| 178 | * of time, autonegotiation should be tried again if the PHY |
| 179 | * supports "magic" autonegotiation (back to AN) |
| 180 | * - If it didn't finish, and no magic_aneg, move to FORCING. |
| 181 | * |
| 182 | * NOLINK: PHY is up, but not currently plugged in. |
| 183 | * - If the timer notes that the link comes back, we move to RUNNING |
| 184 | * - config_aneg moves to AN |
| 185 | * - phy_stop moves to HALTED |
| 186 | * |
| 187 | * FORCING: PHY is being configured with forced settings |
| 188 | * - if link is up, move to RUNNING |
| 189 | * - If link is down, we drop to the next highest setting, and |
| 190 | * retry (FORCING) after a timeout |
| 191 | * - phy_stop moves to HALTED |
| 192 | * |
| 193 | * RUNNING: PHY is currently up, running, and possibly sending |
| 194 | * and/or receiving packets |
| 195 | * - timer will set CHANGELINK if we're polling (this ensures the |
| 196 | * link state is polled every other cycle of this state machine, |
| 197 | * which makes it every other second) |
| 198 | * - irq will set CHANGELINK |
| 199 | * - config_aneg will set AN |
| 200 | * - phy_stop moves to HALTED |
| 201 | * |
| 202 | * CHANGELINK: PHY experienced a change in link state |
| 203 | * - timer moves to RUNNING if link |
| 204 | * - timer moves to NOLINK if the link is down |
| 205 | * - phy_stop moves to HALTED |
| 206 | * |
| 207 | * HALTED: PHY is up, but no polling or interrupts are done. Or |
| 208 | * PHY is in an error state. |
| 209 | * |
| 210 | * - phy_start moves to RESUMING |
| 211 | * |
| 212 | * RESUMING: PHY was halted, but now wants to run again. |
| 213 | * - If we are forcing, or aneg is done, timer moves to RUNNING |
| 214 | * - If aneg is not done, timer moves to AN |
| 215 | * - phy_stop moves to HALTED |
| 216 | */ |
| 217 | enum phy_state { |
| 218 | PHY_DOWN=0, |
| 219 | PHY_STARTING, |
| 220 | PHY_READY, |
| 221 | PHY_PENDING, |
| 222 | PHY_UP, |
| 223 | PHY_AN, |
| 224 | PHY_RUNNING, |
| 225 | PHY_NOLINK, |
| 226 | PHY_FORCING, |
| 227 | PHY_CHANGELINK, |
| 228 | PHY_HALTED, |
| 229 | PHY_RESUMING |
| 230 | }; |
| 231 | |
| 232 | /* phy_device: An instance of a PHY |
| 233 | * |
| 234 | * drv: Pointer to the driver for this PHY instance |
| 235 | * bus: Pointer to the bus this PHY is on |
| 236 | * dev: driver model device structure for this PHY |
| 237 | * phy_id: UID for this device found during discovery |
| 238 | * state: state of the PHY for management purposes |
| 239 | * dev_flags: Device-specific flags used by the PHY driver. |
| 240 | * addr: Bus address of PHY |
| 241 | * link_timeout: The number of timer firings to wait before the |
| 242 | * giving up on the current attempt at acquiring a link |
| 243 | * irq: IRQ number of the PHY's interrupt (-1 if none) |
| 244 | * phy_timer: The timer for handling the state machine |
| 245 | * phy_queue: A work_queue for the interrupt |
| 246 | * attached_dev: The attached enet driver's device instance ptr |
| 247 | * adjust_link: Callback for the enet controller to respond to |
| 248 | * changes in the link state. |
| 249 | * adjust_state: Callback for the enet driver to respond to |
| 250 | * changes in the state machine. |
| 251 | * |
| 252 | * speed, duplex, pause, supported, advertising, and |
| 253 | * autoneg are used like in mii_if_info |
| 254 | * |
| 255 | * interrupts currently only supports enabled or disabled, |
| 256 | * but could be changed in the future to support enabling |
| 257 | * and disabling specific interrupts |
| 258 | * |
| 259 | * Contains some infrastructure for polling and interrupt |
| 260 | * handling, as well as handling shifts in PHY hardware state |
| 261 | */ |
| 262 | struct phy_device { |
| 263 | /* Information about the PHY type */ |
| 264 | /* And management functions */ |
| 265 | struct phy_driver *drv; |
| 266 | |
| 267 | struct mii_bus *bus; |
| 268 | |
| 269 | struct device dev; |
| 270 | |
| 271 | u32 phy_id; |
| 272 | |
| 273 | enum phy_state state; |
| 274 | |
| 275 | u32 dev_flags; |
| 276 | |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 277 | phy_interface_t interface; |
| 278 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 279 | /* Bus address of the PHY (0-32) */ |
| 280 | int addr; |
| 281 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 282 | /* |
| 283 | * forced speed & duplex (no autoneg) |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 284 | * partner speed & duplex & pause (autoneg) |
| 285 | */ |
| 286 | int speed; |
| 287 | int duplex; |
| 288 | int pause; |
| 289 | int asym_pause; |
| 290 | |
| 291 | /* The most recently read link state */ |
| 292 | int link; |
| 293 | |
| 294 | /* Enabled Interrupts */ |
| 295 | u32 interrupts; |
| 296 | |
| 297 | /* Union of PHY and Attached devices' supported modes */ |
| 298 | /* See mii.h for more info */ |
| 299 | u32 supported; |
| 300 | u32 advertising; |
| 301 | |
| 302 | int autoneg; |
| 303 | |
| 304 | int link_timeout; |
| 305 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 306 | /* |
| 307 | * Interrupt number for this PHY |
| 308 | * -1 means no interrupt |
| 309 | */ |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 310 | int irq; |
| 311 | |
| 312 | /* private data pointer */ |
| 313 | /* For use by PHYs to maintain extra state */ |
| 314 | void *priv; |
| 315 | |
| 316 | /* Interrupt and Polling infrastructure */ |
| 317 | struct work_struct phy_queue; |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 318 | struct work_struct state_queue; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 319 | struct timer_list phy_timer; |
Maciej W. Rozycki | 0ac4952 | 2007-09-28 22:42:14 -0700 | [diff] [blame] | 320 | atomic_t irq_disable; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 321 | |
Nate Case | 35b5f6b | 2008-01-29 10:05:09 -0600 | [diff] [blame] | 322 | struct mutex lock; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 323 | |
| 324 | struct net_device *attached_dev; |
| 325 | |
| 326 | void (*adjust_link)(struct net_device *dev); |
| 327 | |
| 328 | void (*adjust_state)(struct net_device *dev); |
| 329 | }; |
| 330 | #define to_phy_device(d) container_of(d, struct phy_device, dev) |
| 331 | |
| 332 | /* struct phy_driver: Driver structure for a particular PHY type |
| 333 | * |
| 334 | * phy_id: The result of reading the UID registers of this PHY |
| 335 | * type, and ANDing them with the phy_id_mask. This driver |
| 336 | * only works for PHYs with IDs which match this field |
| 337 | * name: The friendly name of this PHY type |
| 338 | * phy_id_mask: Defines the important bits of the phy_id |
| 339 | * features: A list of features (speed, duplex, etc) supported |
| 340 | * by this PHY |
| 341 | * flags: A bitfield defining certain other features this PHY |
| 342 | * supports (like interrupts) |
| 343 | * |
| 344 | * The drivers must implement config_aneg and read_status. All |
| 345 | * other functions are optional. Note that none of these |
| 346 | * functions should be called from interrupt time. The goal is |
| 347 | * for the bus read/write functions to be able to block when the |
| 348 | * bus transaction is happening, and be freed up by an interrupt |
| 349 | * (The MPC85xx has this ability, though it is not currently |
| 350 | * supported in the driver). |
| 351 | */ |
| 352 | struct phy_driver { |
| 353 | u32 phy_id; |
| 354 | char *name; |
| 355 | unsigned int phy_id_mask; |
| 356 | u32 features; |
| 357 | u32 flags; |
| 358 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 359 | /* |
| 360 | * Called to initialize the PHY, |
| 361 | * including after a reset |
| 362 | */ |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 363 | int (*config_init)(struct phy_device *phydev); |
| 364 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 365 | /* |
| 366 | * Called during discovery. Used to set |
| 367 | * up device-specific structures, if any |
| 368 | */ |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 369 | int (*probe)(struct phy_device *phydev); |
| 370 | |
| 371 | /* PHY Power Management */ |
| 372 | int (*suspend)(struct phy_device *phydev); |
| 373 | int (*resume)(struct phy_device *phydev); |
| 374 | |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 375 | /* |
| 376 | * Configures the advertisement and resets |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 377 | * autonegotiation if phydev->autoneg is on, |
| 378 | * forces the speed to the current settings in phydev |
Andy Fleming | c5e38a9 | 2008-04-09 19:38:27 -0500 | [diff] [blame] | 379 | * if phydev->autoneg is off |
| 380 | */ |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 381 | int (*config_aneg)(struct phy_device *phydev); |
| 382 | |
| 383 | /* Determines the negotiated speed and duplex */ |
| 384 | int (*read_status)(struct phy_device *phydev); |
| 385 | |
| 386 | /* Clears any pending interrupts */ |
| 387 | int (*ack_interrupt)(struct phy_device *phydev); |
| 388 | |
| 389 | /* Enables or disables interrupts */ |
| 390 | int (*config_intr)(struct phy_device *phydev); |
| 391 | |
| 392 | /* Clears up any memory if needed */ |
| 393 | void (*remove)(struct phy_device *phydev); |
| 394 | |
| 395 | struct device_driver driver; |
| 396 | }; |
| 397 | #define to_phy_driver(d) container_of(d, struct phy_driver, driver) |
| 398 | |
Andy Fleming | f62220d | 2008-04-18 17:29:54 -0500 | [diff] [blame] | 399 | #define PHY_ANY_ID "MATCH ANY PHY" |
| 400 | #define PHY_ANY_UID 0xffffffff |
| 401 | |
| 402 | /* A Structure for boards to register fixups with the PHY Lib */ |
| 403 | struct phy_fixup { |
| 404 | struct list_head list; |
| 405 | char bus_id[BUS_ID_SIZE]; |
| 406 | u32 phy_uid; |
| 407 | u32 phy_uid_mask; |
| 408 | int (*run)(struct phy_device *phydev); |
| 409 | }; |
| 410 | |
Lennert Buytenhek | 2e88810 | 2008-09-29 17:12:35 +0000 | [diff] [blame] | 411 | /** |
| 412 | * phy_read - Convenience function for reading a given PHY register |
| 413 | * @phydev: the phy_device struct |
| 414 | * @regnum: register number to read |
| 415 | * |
| 416 | * NOTE: MUST NOT be called from interrupt context, |
| 417 | * because the bus read/write functions may wait for an interrupt |
| 418 | * to conclude the operation. |
| 419 | */ |
| 420 | static inline int phy_read(struct phy_device *phydev, u16 regnum) |
| 421 | { |
| 422 | return mdiobus_read(phydev->bus, phydev->addr, regnum); |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * phy_write - Convenience function for writing a given PHY register |
| 427 | * @phydev: the phy_device struct |
| 428 | * @regnum: register number to write |
| 429 | * @val: value to write to @regnum |
| 430 | * |
| 431 | * NOTE: MUST NOT be called from interrupt context, |
| 432 | * because the bus read/write functions may wait for an interrupt |
| 433 | * to conclude the operation. |
| 434 | */ |
| 435 | static inline int phy_write(struct phy_device *phydev, u16 regnum, u16 val) |
| 436 | { |
| 437 | return mdiobus_write(phydev->bus, phydev->addr, regnum, val); |
| 438 | } |
| 439 | |
Paul Gortmaker | cac1f3c | 2008-04-15 12:49:21 -0400 | [diff] [blame] | 440 | int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 441 | struct phy_device* get_phy_device(struct mii_bus *bus, int addr); |
| 442 | int phy_clear_interrupt(struct phy_device *phydev); |
| 443 | int phy_config_interrupt(struct phy_device *phydev, u32 interrupts); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 444 | struct phy_device * phy_attach(struct net_device *dev, |
Andy Fleming | f62220d | 2008-04-18 17:29:54 -0500 | [diff] [blame] | 445 | const char *bus_id, u32 flags, phy_interface_t interface); |
| 446 | struct phy_device * phy_connect(struct net_device *dev, const char *bus_id, |
Andy Fleming | e8a2b6a | 2006-12-01 12:01:06 -0600 | [diff] [blame] | 447 | void (*handler)(struct net_device *), u32 flags, |
| 448 | phy_interface_t interface); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 449 | void phy_disconnect(struct phy_device *phydev); |
| 450 | void phy_detach(struct phy_device *phydev); |
| 451 | void phy_start(struct phy_device *phydev); |
| 452 | void phy_stop(struct phy_device *phydev); |
| 453 | int phy_start_aneg(struct phy_device *phydev); |
| 454 | |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 455 | void phy_sanitize_settings(struct phy_device *phydev); |
| 456 | int phy_stop_interrupts(struct phy_device *phydev); |
Andy Fleming | 9b9a8bf | 2008-05-02 13:00:51 -0500 | [diff] [blame] | 457 | int phy_enable_interrupts(struct phy_device *phydev); |
| 458 | int phy_disable_interrupts(struct phy_device *phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 459 | |
| 460 | static inline int phy_read_status(struct phy_device *phydev) { |
| 461 | return phydev->drv->read_status(phydev); |
| 462 | } |
| 463 | |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 464 | int genphy_config_advert(struct phy_device *phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 465 | int genphy_setup_forced(struct phy_device *phydev); |
| 466 | int genphy_restart_aneg(struct phy_device *phydev); |
| 467 | int genphy_config_aneg(struct phy_device *phydev); |
| 468 | int genphy_update_link(struct phy_device *phydev); |
| 469 | int genphy_read_status(struct phy_device *phydev); |
Giuseppe Cavallaro | 0f0ca34 | 2008-11-28 16:24:56 -0800 | [diff] [blame] | 470 | int genphy_suspend(struct phy_device *phydev); |
| 471 | int genphy_resume(struct phy_device *phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 472 | void phy_driver_unregister(struct phy_driver *drv); |
| 473 | int phy_driver_register(struct phy_driver *new_driver); |
| 474 | void phy_prepare_link(struct phy_device *phydev, |
| 475 | void (*adjust_link)(struct net_device *)); |
| 476 | void phy_start_machine(struct phy_device *phydev, |
| 477 | void (*handler)(struct net_device *)); |
| 478 | void phy_stop_machine(struct phy_device *phydev); |
| 479 | int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); |
| 480 | int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd); |
| 481 | int phy_mii_ioctl(struct phy_device *phydev, |
| 482 | struct mii_ioctl_data *mii_data, int cmd); |
Andy Fleming | e139345 | 2005-08-24 18:46:21 -0500 | [diff] [blame] | 483 | int phy_start_interrupts(struct phy_device *phydev); |
| 484 | void phy_print_status(struct phy_device *phydev); |
Vitaly Bordug | 11b0bac | 2006-08-14 23:00:29 -0700 | [diff] [blame] | 485 | struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id); |
Anton Vorontsov | 6f4a7f4 | 2007-12-04 16:17:33 +0300 | [diff] [blame] | 486 | void phy_device_free(struct phy_device *phydev); |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 487 | |
Andy Fleming | f62220d | 2008-04-18 17:29:54 -0500 | [diff] [blame] | 488 | int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, |
| 489 | int (*run)(struct phy_device *)); |
| 490 | int phy_register_fixup_for_id(const char *bus_id, |
| 491 | int (*run)(struct phy_device *)); |
| 492 | int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, |
| 493 | int (*run)(struct phy_device *)); |
| 494 | int phy_scan_fixups(struct phy_device *phydev); |
| 495 | |
Andy Fleming | 9b9a8bf | 2008-05-02 13:00:51 -0500 | [diff] [blame] | 496 | int __init mdio_bus_init(void); |
| 497 | void mdio_bus_exit(void); |
| 498 | |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 499 | extern struct bus_type mdio_bus_type; |
Andy Fleming | 00db818 | 2005-07-30 19:31:23 -0400 | [diff] [blame] | 500 | #endif /* __PHY_H */ |