/* WizNet W5200 Register Definitions */

// $Id: W5200.h 3718 2012-04-16 11:28:40Z svn $

#ifndef _W5200_H
#define _W5200_H

#include <_ansi.h>
#include <stdint.h>

#define W5200_MAX_SOCKETS	8

// Common Registers

#define	W5200_MR		0x0000
#define W5200_GAR		0x0001
#define W5200_SUBR		0x0005
#define W5200_SHAR		0x0009
#define W5200_SIPR		0x000F
#define W5200_IR		0x0015
#define W5200_IMR		0x0016
#define W5200_RTR		0x0017
#define W5200_RCR		0x0019
#define W5200_PATR		0x001C
#define W5200_PPPALGO		0x001E
#define W5200_PTIMER		0x0028
#define W5200_PMAGIC		0x0029
#define W5200_INTLEVEL		0x0030
#define W5200_IR2		0x0034
#define W5200_PSTATUS		0x0035
#define W5200_IMR2		0x0036

// Socket Registers

#define W5200_SOCKET_REG(s)	(0x4000 + (s << 8))

#define W5200_Sn_MR(s)		(W5200_SOCKET_REG(s) + 0x00)
#define W5200_Sn_CR(s)		(W5200_SOCKET_REG(s) + 0x01)
#define W5200_Sn_IR(s)		(W5200_SOCKET_REG(s) + 0x02)
#define W5200_Sn_SR(s)		(W5200_SOCKET_REG(s) + 0x03)
#define W5200_Sn_PORT(s)	(W5200_SOCKET_REG(s) + 0x04)
#define W5200_Sn_DHAR(s)	(W5200_SOCKET_REG(s) + 0x06)
#define W5200_Sn_DIPR(s)	(W5200_SOCKET_REG(s) + 0x0C)
#define W5200_Sn_DPORT(s)	(W5200_SOCKET_REG(s) + 0x10)
#define W5200_Sn_MSSR(s)	(W5200_SOCKET_REG(s) + 0x12)
#define W5200_Sn_PROTO(s)	(W5200_SOCKET_REG(s) + 0x14)
#define W5200_Sn_IP_TOS(s)	(W5200_SOCKET_REG(s) + 0x15)
#define W5200_Sn_IP_TTL(s)	(W5200_SOCKET_REG(s) + 0x16)
#define W5200_Sn_RXMEM_SIZE(s)	(W5200_SOCKET_REG(s) + 0x1E)
#define W5200_Sn_TXMEM_SIZE(s)	(W5200_SOCKET_REG(s) + 0x1F)
#define W5200_Sn_TX_FSR(s)	(W5200_SOCKET_REG(s) + 0x20)
#define W5200_Sn_TX_RD(s)	(W5200_SOCKET_REG(s) + 0x22)
#define W5200_Sn_TX_WR(s)	(W5200_SOCKET_REG(s) + 0x24)
#define W5200_Sn_RX_RSR(s)	(W5200_SOCKET_REG(s) + 0x26)
#define W5200_Sn_RX_RD(s)	(W5200_SOCKET_REG(s) + 0x28)
#define W5200_Sn_RX_WR(s)	(W5200_SOCKET_REG(s) + 0x2A)
#define W5200_Sn_IMR(s)		(W5200_SOCKET_REG(s) + 0x2C)
#define W5200_Sn_FRAG(s)	(W5200_SOCKET_REG(s) + 0x2D)

// W5200 register bit masks

#define W5200_MR_RST		0x80
#define W5200_MR_PB		0x10
#define W5200_MR_PPPOE_ENABLE	0x08

#define W5200_IR_CONFLICT	0x80
#define W5200_IR_PPPOE_CLOSE	0x20

#define W5200_IMR_CONFLICT	0x80
#define W5200_IMR_PPPOE_CLOSE	0x20

#define W5200_PSTATUS_LINK	0x20
#define W5200_PSTATUS_POWERDOWN	0x08

#define W5200_Sn_MR_MULTI	0x80
#define W5200_Sn_MR_MF		0x40
#define W5200_Sn_MR_ND		0x20
#define W5200_Sn_MR_MC		0x20
#define W5200_Sn_MR_CLOSED	0x00
#define W5200_Sn_MR_TCP		0x01
#define W5200_Sn_MR_UDP		0x02
#define W5200_Sn_MR_IPRAW	0x03
#define W5200_Sn_MR_MACRAW	0x04

#define W5200_Sn_CR_IDLE	0x00
#define W5200_Sn_CR_OPEN	0x01
#define W5200_Sn_CR_LISTEN	0x02
#define W5200_Sn_CR_CONNECT	0x04
#define W5200_Sn_CR_DISCON	0x08
#define W5200_Sn_CR_CLOSE	0x10
#define W5200_Sn_CR_SEND	0x20
#define W5200_Sn_CR_SEND_MAC	0x21
#define W5200_Sn_CR_SEND_KEEP	0x22
#define W5200_Sn_CR_RECV	0x40

#define W5200_Sn_SR_SOCK_CLOSED		0x00
#define W5200_Sn_SR_SOCK_ARP		0x01
#define W5200_Sn_SR_SOCK_INIT		0x13
#define W5200_Sn_SR_SOCK_LISTEN		0x14
#define W5200_Sn_SR_SOCK_SYNSENT	0x15
#define W5200_Sn_SR_SOCK_SYNRECV	0x16
#define W5200_Sn_SR_SOCK_ESTABLISHED	0x17
#define W5200_Sn_SR_SOCK_FIN_WAIT	0x18
#define W5200_Sn_SR_SOCK_CLOSING	0x1A
#define W5200_Sn_SR_SOCK_TIME_WAIT	0x1B
#define W5200_Sn_SR_SOCK_CLOSE_WAIT	0x1C
#define W5200_Sn_SR_SOCK_LAST_ACK	0x1D
#define W5200_Sn_SR_SOCK_UDP		0x22
#define W5200_Sn_SR_SOCK_IPRAW		0x32
#define W5200_Sn_SR_SOCK_MACRAW		0x42
#define W5200_Sn_SR_SOCK_PPPOE		0x5F

#define W5200_RAMSIZE			16384

#define W5200_TX_RAM_ADDR		0x8000
#define W5200_RX_RAM_ADDR		0xC000

#define W5200_RAMSIZE_CONFIG_WHOLE	0x0F
#define W5200_RAMSIZE_CONFIG_HALF	0x08
#define W5200_RAMSIZE_CONFIG_QUARTER	0x04
#define W5200_RAMSIZE_CONFIG_EIGHTH	0x02

// W5200 specific driver functions

_BEGIN_STD_C

int W5200_write_register(const uint16_t address,
                         const uint8_t data);

int W5200_read_register(const uint16_t address,
                        uint8_t *data);

int W5200_read_receive_ram(const uint32_t socket,
                           const uint16_t rampointer,
                           uint8_t *buf,
                           const size_t count);

int W5200_write_transmit_ram(const uint32_t socket,
                             const uint16_t rampointer,
                             uint8_t *buf,
                             const size_t count);

_END_STD_C
#endif