e2db1d1f11
IEEE 802.3 Clause 45 added backwards-compatible support for 2^16 PHY registers through the addition of an additional device address frame. Clause 45 addressing is used in 10Gbe PHYs, 802.3az EEE registers, etc. It may make sense to provide a similar extension to the miibus interface, but I've refrained from unilaterally doing so here. Submitted by: Landon Fuller <landon@landonf.org> Differential Revision: https://reviews.freebsd.org/D4607
92 lines
1.8 KiB
Objective-C
92 lines
1.8 KiB
Objective-C
# $FreeBSD$
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#include <sys/bus.h>
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INTERFACE mdio;
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CODE {
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#include <dev/mdio/mdio.h>
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static int
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mdio_null_readextreg(device_t dev, int phy, int devad, int reg)
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{
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if (devad == MDIO_DEVADDR_NONE)
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return (MDIO_READREG(dev, phy, reg));
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return (~0U);
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}
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static int
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mdio_null_writeextreg(device_t dev, int phy, int devad, int reg,
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int val)
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{
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if (devad == MDIO_DEVADDR_NONE)
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return (MDIO_WRITEREG(dev, phy, reg, val));
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return (EINVAL);
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}
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}
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/**
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* @brief Read register from device on MDIO bus.
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*
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* @param dev MDIO bus device.
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* @param phy PHY address.
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* @param reg The PHY register offset.
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*/
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METHOD int readreg {
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device_t dev;
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int phy;
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int reg;
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};
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/**
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* @brief Write register to device on MDIO bus.
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*
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* @param dev MDIO bus device.
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* @param phy PHY address.
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* @param reg The PHY register offset.
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* @param val The value to write at offset @p reg.
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*/
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METHOD int writereg {
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device_t dev;
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int phy;
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int reg;
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int val;
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};
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/**
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* @brief Read extended register from device on MDIO bus.
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*
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* @param dev MDIO bus device.
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* @param phy PHY address.
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* @param devad The MDIO IEEE 802.3 Clause 45 device address, or
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* MDIO_DEVADDR_NONE to request Clause 22 register addressing.
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* @param reg The PHY register offset.
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*/
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METHOD int readextreg {
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device_t dev;
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int phy;
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int devad;
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int reg;
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} DEFAULT mdio_null_readextreg;
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/**
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* @brief Write extended register to device on MDIO bus.
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*
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* @param dev MDIO bus device.
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* @param phy PHY address.
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* @param devad The MDIO IEEE 802.3 Clause 45 device address, or
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* MDIO_DEVADDR_NONE to request Clause 22 register addressing.
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* @param reg The PHY register offset.
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* @param val The value to write at offset @p reg.
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*/
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METHOD int writeextreg {
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device_t dev;
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int phy;
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int devad;
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int reg;
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int val;
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} DEFAULT mdio_null_writeextreg;
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