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# $FreeBSD$
#include <sys/bus.h>
INTERFACE mdio;
CODE {
#include <dev/mdio/mdio.h>
static int
mdio_null_readextreg(device_t dev, int phy, int devad, int reg)
{
if (devad == MDIO_DEVADDR_NONE)
return (MDIO_READREG(dev, phy, reg));
return (~0U);
}
static int
mdio_null_writeextreg(device_t dev, int phy, int devad, int reg,
int val)
{
if (devad == MDIO_DEVADDR_NONE)
return (MDIO_WRITEREG(dev, phy, reg, val));
return (EINVAL);
}
}
/**
* @brief Read register from device on MDIO bus.
*
* @param dev MDIO bus device.
* @param phy PHY address.
* @param reg The PHY register offset.
*/
METHOD int readreg {
device_t dev;
int phy;
int reg;
};
/**
* @brief Write register to device on MDIO bus.
*
* @param dev MDIO bus device.
* @param phy PHY address.
* @param reg The PHY register offset.
* @param val The value to write at offset @p reg.
*/
METHOD int writereg {
device_t dev;
int phy;
int reg;
int val;
};
/**
* @brief Read extended register from device on MDIO bus.
*
* @param dev MDIO bus device.
* @param phy PHY address.
* @param devad The MDIO IEEE 802.3 Clause 45 device address, or
* MDIO_DEVADDR_NONE to request Clause 22 register addressing.
* @param reg The PHY register offset.
*/
METHOD int readextreg {
device_t dev;
int phy;
int devad;
int reg;
} DEFAULT mdio_null_readextreg;
/**
* @brief Write extended register to device on MDIO bus.
*
* @param dev MDIO bus device.
* @param phy PHY address.
* @param devad The MDIO IEEE 802.3 Clause 45 device address, or
* MDIO_DEVADDR_NONE to request Clause 22 register addressing.
* @param reg The PHY register offset.
* @param val The value to write at offset @p reg.
*/
METHOD int writeextreg {
device_t dev;
int phy;
int devad;
int reg;
int val;
} DEFAULT mdio_null_writeextreg;
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