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yaml
---
r: 112188
b: refs/heads/master
c: 2e88810
h: refs/heads/master
v: v3
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Lennert Buytenhek authored and David S. Miller committed Oct 8, 2008
1 parent 7a6eabe commit 570a94a
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Showing 4 changed files with 88 additions and 58 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 46abc02175b3c246dd5141d878f565a8725060c9
refs/heads/master: 2e888103295f47b8fcbf7e9bb8c5da97dd2ecd76
49 changes: 49 additions & 0 deletions trunk/drivers/net/phy/mdio_bus.c
Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,55 @@ struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr)
}
EXPORT_SYMBOL(mdiobus_scan);

/**
* mdiobus_read - Convenience function for reading a given MII mgmt register
* @bus: the mii_bus struct
* @addr: the phy address
* @regnum: register number to read
*
* NOTE: MUST NOT be called from interrupt context,
* because the bus read/write functions may wait for an interrupt
* to conclude the operation.
*/
int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum)
{
int retval;

BUG_ON(in_interrupt());

mutex_lock(&bus->mdio_lock);
retval = bus->read(bus, addr, regnum);
mutex_unlock(&bus->mdio_lock);

return retval;
}
EXPORT_SYMBOL(mdiobus_read);

/**
* mdiobus_write - Convenience function for writing a given MII mgmt register
* @bus: the mii_bus struct
* @addr: the phy address
* @regnum: register number to write
* @val: value to write to @regnum
*
* NOTE: MUST NOT be called from interrupt context,
* because the bus read/write functions may wait for an interrupt
* to conclude the operation.
*/
int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val)
{
int err;

BUG_ON(in_interrupt());

mutex_lock(&bus->mdio_lock);
err = bus->write(bus, addr, regnum, val);
mutex_unlock(&bus->mdio_lock);

return err;
}
EXPORT_SYMBOL(mdiobus_write);

/**
* mdio_bus_match - determine if given PHY driver supports the given PHY device
* @dev: target PHY device
Expand Down
49 changes: 0 additions & 49 deletions trunk/drivers/net/phy/phy.c
Original file line number Diff line number Diff line change
Expand Up @@ -57,55 +57,6 @@ void phy_print_status(struct phy_device *phydev)
EXPORT_SYMBOL(phy_print_status);


/**
* phy_read - Convenience function for reading a given PHY register
* @phydev: the phy_device struct
* @regnum: register number to read
*
* NOTE: MUST NOT be called from interrupt context,
* because the bus read/write functions may wait for an interrupt
* to conclude the operation.
*/
int phy_read(struct phy_device *phydev, u16 regnum)
{
int retval;
struct mii_bus *bus = phydev->bus;

BUG_ON(in_interrupt());

mutex_lock(&bus->mdio_lock);
retval = bus->read(bus, phydev->addr, regnum);
mutex_unlock(&bus->mdio_lock);

return retval;
}
EXPORT_SYMBOL(phy_read);

/**
* phy_write - Convenience function for writing a given PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
* @val: value to write to @regnum
*
* NOTE: MUST NOT be called from interrupt context,
* because the bus read/write functions may wait for an interrupt
* to conclude the operation.
*/
int phy_write(struct phy_device *phydev, u16 regnum, u16 val)
{
int err;
struct mii_bus *bus = phydev->bus;

BUG_ON(in_interrupt());

mutex_lock(&bus->mdio_lock);
err = bus->write(bus, phydev->addr, regnum, val);
mutex_unlock(&bus->mdio_lock);

return err;
}
EXPORT_SYMBOL(phy_write);

/**
* phy_clear_interrupt - Ack the phy device's interrupt
* @phydev: the phy_device struct
Expand Down
46 changes: 38 additions & 8 deletions trunk/include/linux/phy.h
Original file line number Diff line number Diff line change
Expand Up @@ -122,6 +122,15 @@ struct mii_bus {
};
#define to_mii_bus(d) container_of(d, struct mii_bus, dev)

struct mii_bus *mdiobus_alloc(void);
int mdiobus_register(struct mii_bus *bus);
void mdiobus_unregister(struct mii_bus *bus);
void mdiobus_free(struct mii_bus *bus);
struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum);
int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val);


#define PHY_INTERRUPT_DISABLED 0x0
#define PHY_INTERRUPT_ENABLED 0x80000000

Expand Down Expand Up @@ -399,8 +408,35 @@ struct phy_fixup {
int (*run)(struct phy_device *phydev);
};

int phy_read(struct phy_device *phydev, u16 regnum);
int phy_write(struct phy_device *phydev, u16 regnum, u16 val);
/**
* phy_read - Convenience function for reading a given PHY register
* @phydev: the phy_device struct
* @regnum: register number to read
*
* NOTE: MUST NOT be called from interrupt context,
* because the bus read/write functions may wait for an interrupt
* to conclude the operation.
*/
static inline int phy_read(struct phy_device *phydev, u16 regnum)
{
return mdiobus_read(phydev->bus, phydev->addr, regnum);
}

/**
* phy_write - Convenience function for writing a given PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
* @val: value to write to @regnum
*
* NOTE: MUST NOT be called from interrupt context,
* because the bus read/write functions may wait for an interrupt
* to conclude the operation.
*/
static inline int phy_write(struct phy_device *phydev, u16 regnum, u16 val)
{
return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
}

int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id);
struct phy_device* get_phy_device(struct mii_bus *bus, int addr);
int phy_clear_interrupt(struct phy_device *phydev);
Expand All @@ -416,12 +452,6 @@ void phy_start(struct phy_device *phydev);
void phy_stop(struct phy_device *phydev);
int phy_start_aneg(struct phy_device *phydev);

struct mii_bus *mdiobus_alloc(void);
int mdiobus_register(struct mii_bus *bus);
void mdiobus_unregister(struct mii_bus *bus);
void mdiobus_free(struct mii_bus *bus);
struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);

void phy_sanitize_settings(struct phy_device *phydev);
int phy_stop_interrupts(struct phy_device *phydev);
int phy_enable_interrupts(struct phy_device *phydev);
Expand Down

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