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Diffstat (limited to 'include/phy.h')
| -rw-r--r-- | include/phy.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/include/phy.h b/include/phy.h new file mode 100644 index 000000000..2abd23bf2 --- /dev/null +++ b/include/phy.h @@ -0,0 +1,219 @@ +/* + * Copyright 2011 Freescale Semiconductor, Inc. + * Andy Fleming <afleming@freescale.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * This file pretty much stolen from Linux's mii.h/ethtool.h/phy.h + */ + +#ifndef _PHY_H +#define _PHY_H + +#include <linux/list.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/mdio.h> + +#define PHY_MAX_ADDR 32 + +#define PHY_BASIC_FEATURES (SUPPORTED_10baseT_Half | \ + SUPPORTED_10baseT_Full | \ + SUPPORTED_100baseT_Half | \ + SUPPORTED_100baseT_Full | \ + SUPPORTED_Autoneg | \ + SUPPORTED_TP | \ + SUPPORTED_MII) + +#define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \ + SUPPORTED_1000baseT_Half | \ + SUPPORTED_1000baseT_Full) + +#define PHY_10G_FEATURES (PHY_GBIT_FEATURES | \ + SUPPORTED_10000baseT_Full) + +#define PHY_ANEG_TIMEOUT 4000 + + +typedef enum { + PHY_INTERFACE_MODE_MII, + PHY_INTERFACE_MODE_GMII, + PHY_INTERFACE_MODE_SGMII, + PHY_INTERFACE_MODE_TBI, + PHY_INTERFACE_MODE_RMII, + PHY_INTERFACE_MODE_RGMII, + PHY_INTERFACE_MODE_RGMII_ID, + PHY_INTERFACE_MODE_RGMII_RXID, + PHY_INTERFACE_MODE_RGMII_TXID, + PHY_INTERFACE_MODE_RTBI, + PHY_INTERFACE_MODE_XGMII, + PHY_INTERFACE_MODE_NONE /* Must be last */ +} phy_interface_t; + +static const char *phy_interface_strings[] = { + [PHY_INTERFACE_MODE_MII] = "mii", + [PHY_INTERFACE_MODE_GMII] = "gmii", + [PHY_INTERFACE_MODE_SGMII] = "sgmii", + [PHY_INTERFACE_MODE_TBI] = "tbi", + [PHY_INTERFACE_MODE_RMII] = "rmii", + [PHY_INTERFACE_MODE_RGMII] = "rgmii", + [PHY_INTERFACE_MODE_RGMII_ID] = "rgmii-id", + [PHY_INTERFACE_MODE_RGMII_RXID] = "rgmii-rxid", + [PHY_INTERFACE_MODE_RGMII_TXID] = "rgmii-txid", + [PHY_INTERFACE_MODE_RTBI] = "rtbi", + [PHY_INTERFACE_MODE_XGMII] = "xgmii", + [PHY_INTERFACE_MODE_NONE] = "", +}; + +static inline const char *phy_string_for_interface(phy_interface_t i) +{ + /* Default to unknown */ + if (i > PHY_INTERFACE_MODE_NONE) + i = PHY_INTERFACE_MODE_NONE; + + return phy_interface_strings[i]; +} + + +struct phy_device; + +#define MDIO_NAME_LEN 32 + +struct mii_dev { + struct list_head link; + char name[MDIO_NAME_LEN]; + void *priv; + int (*read)(struct mii_dev *bus, int addr, int devad, int reg); + int (*write)(struct mii_dev *bus, int addr, int devad, int reg, + u16 val); + int (*reset)(struct mii_dev *bus); + struct phy_device *phymap[PHY_MAX_ADDR]; + u32 phy_mask; +}; + +/* struct phy_driver: a structure which defines PHY behavior + * + * uid will contain a number which represents the PHY. During + * startup, the driver will poll the PHY to find out what its + * UID--as defined by registers 2 and 3--is. The 32-bit result + * gotten from the PHY will be masked to + * discard any bits which may change based on revision numbers + * unimportant to functionality + * + */ +struct phy_driver { + char *name; + unsigned int uid; + unsigned int mask; + unsigned int mmds; + + u32 features; + + /* Called to do any driver startup necessities */ + /* Will be called during phy_connect */ + int (*probe)(struct phy_device *phydev); + + /* Called to configure the PHY, and modify the controller + * based on the results. Should be called after phy_connect */ + int (*config)(struct phy_device *phydev); + + /* Called when starting up the controller */ + int (*startup)(struct phy_device *phydev); + + /* Called when bringing down the controller */ + int (*shutdown)(struct phy_device *phydev); + + struct list_head list; +}; + +struct phy_device { + /* Information about the PHY type */ + /* And management functions */ + struct mii_dev *bus; + struct phy_driver *drv; + void *priv; + + struct eth_device *dev; + + /* forced speed & duplex (no autoneg) + * partner speed & duplex & pause (autoneg) + */ + int speed; + int duplex; + + /* The most recently read link state */ + int link; + int port; + phy_interface_t interface; + + u32 advertising; + u32 supported; + u32 mmds; + + int autoneg; + int addr; + int pause; + int asym_pause; + u32 phy_id; + u32 flags; +}; + +static inline int phy_read(struct phy_device *phydev, int devad, int regnum) +{ + struct mii_dev *bus = phydev->bus; + + return bus->read(bus, phydev->addr, devad, regnum); +} + +static inline int phy_write(struct phy_device *phydev, int devad, int regnum, + u16 val) +{ + struct mii_dev *bus = phydev->bus; + + return bus->write(bus, phydev->addr, devad, regnum, val); +} + +#ifdef CONFIG_PHYLIB_10G +extern struct phy_driver gen10g_driver; + +/* For now, XGMII is the only 10G interface */ +static inline int is_10g_interface(phy_interface_t interface) +{ + return interface == PHY_INTERFACE_MODE_XGMII; +} + +#endif + +int phy_init(void); +int phy_reset(struct phy_device *phydev); +struct phy_device *phy_connect(struct mii_dev *bus, int addr, + struct eth_device *dev, + phy_interface_t interface); +int phy_startup(struct phy_device *phydev); +int phy_config(struct phy_device *phydev); +int phy_shutdown(struct phy_device *phydev); +int phy_register(struct phy_driver *drv); +int genphy_config_aneg(struct phy_device *phydev); +int genphy_update_link(struct phy_device *phydev); +int genphy_config(struct phy_device *phydev); +int genphy_startup(struct phy_device *phydev); +int genphy_shutdown(struct phy_device *phydev); +int gen10g_config(struct phy_device *phydev); +int gen10g_startup(struct phy_device *phydev); +int gen10g_shutdown(struct phy_device *phydev); +int gen10g_discover_mmds(struct phy_device *phydev); + +#endif |