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***************************************************************************/

/* $OpenBSD: if_em_osdep.h,v 1.6 2006/03/05 19:55:10 brad Exp $ */
/* $FreeBSD: if_em_osdep.h,v 1.11 2003/05/02 21:17:08 pdeuskar Exp $ */

#ifndef _EM_OPENBSD_OS_H_
#define _EM_OPENBSD_OS_H_

/* The happy-fun DELAY macro is defined in /usr/src/sys/i386/include/clock.h */
#define usec_delay(x)		DELAY(x)
#define msec_delay(x)		DELAY(1000*(x))
/* TODO: Should we be paranoid about delaying in interrupt context? */
#define msec_delay_irq(x)	DELAY(1000*(x))

#define MSGOUT(S, A, B)		printf(S "\n", A, B)
#define DEBUGFUNC(F)		DEBUGOUT(F);
#if DBG
	#define DEBUGOUT(S)			printf(S "\n")
	#define DEBUGOUT1(S,A)			printf(S "\n",A)
	#define DEBUGOUT2(S,A,B)		printf(S "\n",A,B)
	#define DEBUGOUT3(S,A,B,C)		printf(S "\n",A,B,C)
	#define DEBUGOUT7(S,A,B,C,D,E,F,G)	printf(S "\n",A,B,C,D,E,F,G)
#else
	#define DEBUGOUT(S)
	#define DEBUGOUT1(S,A)
	#define DEBUGOUT2(S,A,B)
	#define DEBUGOUT3(S,A,B,C)
	#define DEBUGOUT7(S,A,B,C,D,E,F,G)
#endif

#define CMD_MEM_WRT_INVALIDATE		0x0010  /* BIT_4 */

struct em_osdep
{
	bus_space_tag_t		mem_bus_space_tag;
	bus_space_handle_t	mem_bus_space_handle;
	struct device		*dev;

	struct pci_attach_args	em_pa;

	bus_size_t		em_memsize;
	bus_addr_t		em_membase;

	bus_space_handle_t	em_iobhandle;
	bus_space_tag_t		em_iobtag;
	bus_size_t		em_iosize;
	bus_addr_t		em_iobase;
};

#define E1000_WRITE_FLUSH(hw)	E1000_READ_REG(hw, STATUS)

/* Read from an absolute offset in the adapter's memory space */
#define E1000_READ_OFFSET(hw, offset) \
	bus_space_read_4( ((struct em_osdep *)(hw)->back)->mem_bus_space_tag, \
			    ((struct em_osdep *)(hw)->back)->mem_bus_space_handle, \
			    offset)

/* Write to an absolute offset in the adapter's memory space */
#define E1000_WRITE_OFFSET(hw, offset, value) \
	bus_space_write_4( ((struct em_osdep *)(hw)->back)->mem_bus_space_tag, \
			    ((struct em_osdep *)(hw)->back)->mem_bus_space_handle, \
			    offset, value)

/* Convert a register name to its offset in the adapter's memory space */
#define E1000_REG_OFFSET(hw, reg) \
	((hw)->mac_type >= em_82543 ? E1000_##reg : E1000_82542_##reg)

#define E1000_READ_REG(hw, reg) \
	E1000_READ_OFFSET(hw, E1000_REG_OFFSET(hw, reg))

#define E1000_WRITE_REG(hw, reg, value) \
	E1000_WRITE_OFFSET(hw, E1000_REG_OFFSET(hw, reg), value)

#define E1000_READ_REG_ARRAY(hw, reg, index) \
	E1000_READ_OFFSET(hw, E1000_REG_OFFSET(hw, reg) + ((index) << 2))

#define E1000_READ_REG_ARRAY_DWORD	E1000_READ_REG_ARRAY

#define E1000_WRITE_REG_ARRAY(hw, reg, index, value) \
	E1000_WRITE_OFFSET(hw, E1000_REG_OFFSET(hw, reg) + ((index) << 2), value)

#define E1000_WRITE_REG_ARRAY_BYTE(hw, reg, index, value) \
	bus_space_write_1( ((struct em_osdep *)(hw)->back)->mem_bus_space_tag, \
			    ((struct em_osdep *)(hw)->back)->mem_bus_space_handle, \
			    E1000_REG_OFFSET(hw, reg) + (index), \
			    value)

#define E1000_WRITE_REG_ARRAY_WORD(hw, reg, index, value) \
	bus_space_write_2( ((struct em_osdep *)(hw)->back)->mem_bus_space_tag, \
			    ((struct em_osdep *)(hw)->back)->mem_bus_space_handle, \
			    E1000_REG_OFFSET(hw, reg) + (index), \
			    value)

#define E1000_WRITE_REG_ARRAY_DWORD(hw, reg, index, value) \
	E1000_WRITE_OFFSET(hw, E1000_REG_OFFSET(hw, reg) + ((index) << 2), value)

#define em_io_read(hw, port) \
	bus_space_read_4(((struct em_osdep *)(hw)->back)->em_iobtag, \
			    ((struct em_osdep *)(hw)->back)->em_iobhandle, (port))

#define em_io_write(hw, port, value) \
	bus_space_write_4(((struct em_osdep *)(hw)->back)->em_iobtag, \
			    ((struct em_osdep *)(hw)->back)->em_iobhandle, \
			    (port), (value))

#ifdef DEBUG
#define EM_KASSERT(exp,msg)	do { if (!(exp)) panic msg; } while (0)
#else
#define EM_KASSERT(exp,msg)
#endif

#endif  /* _EM_OPENBSD_OS_H_ */