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#include <linux/ethtool.h>
#include <linux/bitfield.h>
#include "global2.h"
int mv88e6xxx_g2_read(struct mv88e6xxx_chip *chip, int reg, u16 *val)
{
return mv88e6xxx_read(chip, chip->info->global2_addr, reg, val);
}
int mv88e6xxx_g2_write(struct mv88e6xxx_chip *chip, int reg, u16 val)
{
return mv88e6xxx_write(chip, chip->info->global2_addr, reg, val);
}
int mv88e6xxx_g2_wait(struct mv88e6xxx_chip *chip, int reg, u16 mask)
{
return mv88e6xxx_wait(chip, chip->info->global2_addr, reg, mask);
}
static int mv88e6xxx_g2_smi_phy_wait(struct mv88e6xxx_chip *chip)
{
return mv88e6xxx_g2_wait(chip, MV88E6XXX_G2_SMI_PHY_CMD,
MV88E6XXX_G2_SMI_PHY_CMD_BUSY);
}
static int mv88e6xxx_g2_smi_phy_cmd(struct mv88e6xxx_chip *chip, u16 cmd)
{
int err;
err = mv88e6xxx_g2_write(chip, MV88E6XXX_G2_SMI_PHY_CMD,
MV88E6XXX_G2_SMI_PHY_CMD_BUSY | cmd);
if (err)
return err;
return mv88e6xxx_g2_smi_phy_wait(chip);
}
static int mv88e6xxx_g2_smi_phy_access(struct mv88e6xxx_chip *chip,
bool external, bool c45, u16 op, int dev,
int reg)
{
u16 cmd = op;
if (external)
cmd |= MV88E6390_G2_SMI_PHY_CMD_FUNC_EXTERNAL;
else
cmd |= MV88E6390_G2_SMI_PHY_CMD_FUNC_INTERNAL; /* empty mask */
if (c45)
cmd |= MV88E6XXX_G2_SMI_PHY_CMD_MODE_45; /* empty mask */
else
cmd |= MV88E6XXX_G2_SMI_PHY_CMD_MODE_22;
dev <<= __bf_shf(MV88E6XXX_G2_SMI_PHY_CMD_DEV_ADDR_MASK);
cmd |= dev & MV88E6XXX_G2_SMI_PHY_CMD_DEV_ADDR_MASK;
cmd |= reg & MV88E6XXX_G2_SMI_PHY_CMD_REG_ADDR_MASK;
return mv88e6xxx_g2_smi_phy_cmd(chip, cmd);
}
static int mv88e6xxx_g2_smi_phy_access_c22(struct mv88e6xxx_chip *chip,
bool external, u16 op, int dev,
int reg)
{
return mv88e6xxx_g2_smi_phy_access(chip, external, false, op, dev, reg);
}
/* IEEE 802.3 Clause 22 Read Data Register */
static int mv88e6xxx_g2_smi_phy_read_data_c22(struct mv88e6xxx_chip *chip,
bool external, int dev, int reg,
u16 *data)
{
u16 op = MV88E6XXX_G2_SMI_PHY_CMD_OP_22_READ_DATA;
int err;
err = mv88e6xxx_g2_smi_phy_wait(chip);
if (err)
return err;
err = mv88e6xxx_g2_smi_phy_access_c22(chip, external, op, dev, reg);
if (err)
return err;
return mv88e6xxx_g2_read(chip, MV88E6XXX_G2_SMI_PHY_DATA, data);
}
/* IEEE 802.3 Clause 22 Write Data Register */
static int mv88e6xxx_g2_smi_phy_write_data_c22(struct mv88e6xxx_chip *chip,
bool external, int dev, int reg,
u16 data)
{
u16 op = MV88E6XXX_G2_SMI_PHY_CMD_OP_22_WRITE_DATA;
int err;
err = mv88e6xxx_g2_smi_phy_wait(chip);
if (err)
return err;
err = mv88e6xxx_g2_write(chip, MV88E6XXX_G2_SMI_PHY_DATA, data);
if (err)
return err;
return mv88e6xxx_g2_smi_phy_access_c22(chip, external, op, dev, reg);
}
int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
int addr, int reg, u16 *val)
{
bool external = false;
return mv88e6xxx_g2_smi_phy_read_data_c22(chip, external, addr, reg,
val);
}
int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
int addr, int reg, u16 val)
{
bool external = false;
return mv88e6xxx_g2_smi_phy_write_data_c22(chip, external, addr, reg,
val);
}
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