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/*$FreeBSD: release/9.1.0/sys/dev/e1000/e1000_osdep.c 219902 2011-03-23 13:10:15Z jhb $*/
#include "e1000_api.h"
/*
* NOTE: the following routines using the e1000
* naming style are provided to the shared
* code but are OS specific
*/
void
e1000_write_pci_cfg(struct e1000_hw *hw, u32 reg, u16 *value)
{
pci_write_config(((struct e1000_osdep *)hw->back)->dev, reg, *value, 2);
}
void
e1000_read_pci_cfg(struct e1000_hw *hw, u32 reg, u16 *value)
{
*value = pci_read_config(((struct e1000_osdep *)hw->back)->dev, reg, 2);
}
void
e1000_pci_set_mwi(struct e1000_hw *hw)
{
pci_write_config(((struct e1000_osdep *)hw->back)->dev, PCIR_COMMAND,
(hw->bus.pci_cmd_word | CMD_MEM_WRT_INVALIDATE), 2);
}
void
e1000_pci_clear_mwi(struct e1000_hw *hw)
{
pci_write_config(((struct e1000_osdep *)hw->back)->dev, PCIR_COMMAND,
(hw->bus.pci_cmd_word & ~CMD_MEM_WRT_INVALIDATE), 2);
}
/*
* Read the PCI Express capabilities
*/
int32_t
e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
{
device_t dev = ((struct e1000_osdep *)hw->back)->dev;
u32 offset;
pci_find_cap(dev, PCIY_EXPRESS, &offset);
*value = pci_read_config(dev, offset + reg, 2);
return (E1000_SUCCESS);
}
/*
* Write the PCI Express capabilities
*/
int32_t
e1000_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
{
device_t dev = ((struct e1000_osdep *)hw->back)->dev;
u32 offset;
pci_find_cap(dev, PCIY_EXPRESS, &offset);
pci_write_config(dev, offset + reg, *value, 2);
return (E1000_SUCCESS);
}