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34/*$FreeBSD$*/
35
36#include "e1000_api.h"
37
38/*
39 * NOTE: the following routines using the e1000
40 * 	naming style are provided to the shared
41 *	code but are OS specific
42 */
43
44void
45e1000_write_pci_cfg(struct e1000_hw *hw, u32 reg, u16 *value)
46{
47	pci_write_config(((struct e1000_osdep *)hw->back)->dev, reg, *value, 2);
48}
49
50void
51e1000_read_pci_cfg(struct e1000_hw *hw, u32 reg, u16 *value)
52{
53	*value = pci_read_config(((struct e1000_osdep *)hw->back)->dev, reg, 2);
54}
55
56void
57e1000_pci_set_mwi(struct e1000_hw *hw)
58{
59	pci_write_config(((struct e1000_osdep *)hw->back)->dev, PCIR_COMMAND,
60	    (hw->bus.pci_cmd_word | CMD_MEM_WRT_INVALIDATE), 2);
61}
62
63void
64e1000_pci_clear_mwi(struct e1000_hw *hw)
65{
66	pci_write_config(((struct e1000_osdep *)hw->back)->dev, PCIR_COMMAND,
67	    (hw->bus.pci_cmd_word & ~CMD_MEM_WRT_INVALIDATE), 2);
68}
69
70/*
71 * Read the PCI Express capabilities
72 */
73int32_t
74e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
75{
76	device_t dev = ((struct e1000_osdep *)hw->back)->dev;
77	u32	offset;
78
79	pci_find_cap(dev, PCIY_EXPRESS, &offset);
80	*value = pci_read_config(dev, offset + reg, 2);
81	return (E1000_SUCCESS);
82}
83
84/*
85 * Write the PCI Express capabilities
86 */
87int32_t
88e1000_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
89{
90	device_t dev = ((struct e1000_osdep *)hw->back)->dev;
91	u32	offset;
92
93	pci_find_cap(dev, PCIY_EXPRESS, &offset);
94	pci_write_config(dev, offset + reg, *value, 2);
95	return (E1000_SUCCESS);
96}
97