| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * ibm_emac_phy.h |
| 4 | * |
| 5 | * |
| 6 | * Benjamin Herrenschmidt <benh@kernel.crashing.org> |
| 7 | * February 2003 |
| 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 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 16 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 17 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 20 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 21 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License along |
| 26 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 27 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 28 | * |
| 29 | * |
| 30 | * This file basically duplicates sungem_phy.{c,h} with different PHYs |
| 31 | * supported. I'm looking into merging that in a single mii layer more |
| 32 | * flexible than mii.c |
| 33 | */ |
| 34 | |
| 35 | #ifndef _IBM_EMAC_PHY_H_ |
| 36 | #define _IBM_EMAC_PHY_H_ |
| 37 | |
| 38 | /* |
| 39 | * PHY mode settings |
| 40 | * Used for multi-mode capable PHYs |
| 41 | */ |
| 42 | #define PHY_MODE_NA 0 |
| 43 | #define PHY_MODE_MII 1 |
| 44 | #define PHY_MODE_RMII 2 |
| 45 | #define PHY_MODE_SMII 3 |
| 46 | #define PHY_MODE_RGMII 4 |
| 47 | #define PHY_MODE_TBI 5 |
| 48 | #define PHY_MODE_GMII 6 |
| 49 | #define PHY_MODE_RTBI 7 |
| 50 | #define PHY_MODE_SGMII 8 |
| 51 | |
| 52 | /* |
| 53 | * PHY specific registers/values |
| 54 | */ |
| 55 | |
| 56 | /* CIS8201 */ |
| 57 | #define MII_CIS8201_EPCR 0x17 |
| 58 | #define EPCR_MODE_MASK 0x3000 |
| 59 | #define EPCR_GMII_MODE 0x0000 |
| 60 | #define EPCR_RGMII_MODE 0x1000 |
| 61 | #define EPCR_TBI_MODE 0x2000 |
| 62 | #define EPCR_RTBI_MODE 0x3000 |
| 63 | |
| 64 | struct mii_phy; |
| 65 | |
| 66 | /* Operations supported by any kind of PHY */ |
| 67 | struct mii_phy_ops { |
| 68 | int (*init) (struct mii_phy * phy); |
| 69 | int (*suspend) (struct mii_phy * phy, int wol_options); |
| 70 | int (*setup_aneg) (struct mii_phy * phy, u32 advertise); |
| 71 | int (*setup_forced) (struct mii_phy * phy, int speed, int fd); |
| 72 | int (*poll_link) (struct mii_phy * phy); |
| 73 | int (*read_link) (struct mii_phy * phy); |
| 74 | }; |
| 75 | |
| 76 | /* Structure used to statically define an mii/gii based PHY */ |
| 77 | struct mii_phy_def { |
| 78 | u32 phy_id; /* Concatenated ID1 << 16 | ID2 */ |
| 79 | u32 phy_id_mask; /* Significant bits */ |
| 80 | u32 features; /* Ethtool SUPPORTED_* defines */ |
| 81 | int magic_aneg; /* Autoneg does all speed test for us */ |
| 82 | const char *name; |
| 83 | const struct mii_phy_ops *ops; |
| 84 | }; |
| 85 | |
| 86 | /* An instance of a PHY, partially borrowed from mii_if_info */ |
| 87 | struct mii_phy { |
| 88 | struct mii_phy_def *def; |
| 89 | int advertising; |
| 90 | int mii_id; |
| 91 | |
| 92 | /* 1: autoneg enabled, 0: disabled */ |
| 93 | int autoneg; |
| 94 | |
| 95 | /* forced speed & duplex (no autoneg) |
| 96 | * partner speed & duplex & pause (autoneg) |
| 97 | */ |
| 98 | int speed; |
| 99 | int duplex; |
| 100 | int pause; |
| 101 | |
| 102 | /* PHY mode - if needed */ |
| 103 | int mode; |
| 104 | |
| 105 | /* Provided by host chip */ |
| 106 | struct net_device *dev; |
| 107 | int (*mdio_read) (struct net_device * dev, int mii_id, int reg); |
| 108 | void (*mdio_write) (struct net_device * dev, int mii_id, int reg, |
| 109 | int val); |
| 110 | }; |
| 111 | |
| 112 | /* Pass in a struct mii_phy with dev, mdio_read and mdio_write |
| 113 | * filled, the remaining fields will be filled on return |
| 114 | */ |
| 115 | extern int mii_phy_probe(struct mii_phy *phy, int mii_id); |
| 116 | |
| 117 | static inline int __phy_read(struct mii_phy *phy, int id, int reg) |
| 118 | { |
| 119 | return phy->mdio_read(phy->dev, id, reg); |
| 120 | } |
| 121 | |
| 122 | static inline void __phy_write(struct mii_phy *phy, int id, int reg, int val) |
| 123 | { |
| 124 | phy->mdio_write(phy->dev, id, reg, val); |
| 125 | } |
| 126 | |
| 127 | static inline int phy_read(struct mii_phy *phy, int reg) |
| 128 | { |
| 129 | return phy->mdio_read(phy->dev, phy->mii_id, reg); |
| 130 | } |
| 131 | |
| 132 | static inline void phy_write(struct mii_phy *phy, int reg, int val) |
| 133 | { |
| 134 | phy->mdio_write(phy->dev, phy->mii_id, reg, val); |
| 135 | } |
| 136 | |
| 137 | #endif /* _IBM_EMAC_PHY_H_ */ |