/**
* igb_release_swfw_sync_i210 - Release SW/FW semaphore
* @hw: pointer to the HW structure
* @mask: specifies which semaphore to acquire
*
* Release the SW/FW semaphore used to access the PHY or NVM. The mask
* will also specify which port we're releasing the lock for.
**/
void igb_release_swfw_sync_i210(struct e1000_hw *hw, u16 mask)
{
u32 swfw_sync;
while (igb_get_hw_semaphore_i210(hw))
; /* Empty */
swfw_sync = rd32(E1000_SW_FW_SYNC);
swfw_sync &= ~mask;
wr32(E1000_SW_FW_SYNC, swfw_sync);
igb_put_hw_semaphore(hw);
}
/**
* igb_acquire_swfw_sync_i210 - Acquire SW/FW semaphore
* @hw: pointer to the HW structure
* @mask: specifies which semaphore to acquire
*
* Acquire the SW/FW semaphore to access the PHY or NVM. The mask
* will also specify which port we're acquiring the lock for.
**/
s32 igb_acquire_swfw_sync_i210(struct e1000_hw *hw, u16 mask)
{
u32 swfw_sync;
u32 swmask = mask;
u32 fwmask = mask << 16;
s32 ret_val = E1000_SUCCESS;
s32 i = 0, timeout = 200; /* FIXME: find real value to use here */
while (i < timeout) {
if (igb_get_hw_semaphore_i210(hw)) {
ret_val = -E1000_ERR_SWFW_SYNC;
goto out;
}
swfw_sync = rd32(E1000_SW_FW_SYNC);
if (!(swfw_sync & fwmask))
break;
/*
* Firmware currently using resource (fwmask)
*/
igb_put_hw_semaphore_i210(hw);
mdelay(5);
i++;
}
if (i == timeout) {
hw_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
ret_val = -E1000_ERR_SWFW_SYNC;
goto out;
}
swfw_sync |= swmask;
wr32(E1000_SW_FW_SYNC, swfw_sync);
igb_put_hw_semaphore_i210(hw);
out:
return ret_val;
}
