e1000_osdep.c

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/*$FreeBSD$*/
 
#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);
}