/******************************************************************************
**
** FILE NAME    : ifxmips_ptm_adsl.h
** PROJECT      : UEIP
** MODULES      : PTM
**
** DATE         : 7 Jul 2009
** AUTHOR       : Xu Liang
** DESCRIPTION  : PTM driver header file (core functions for Danube/Amazon-SE/
**                AR9)
** COPYRIGHT    :       Copyright (c) 2006
**                      Infineon Technologies AG
**                      Am Campeon 1-12, 85579 Neubiberg, Germany
**
**    This program is free software; you can redistribute it and/or modify
**    it under the terms of the GNU General Public License as published by
**    the Free Software Foundation; either version 2 of the License, or
**    (at your option) any later version.
**
** HISTORY
** $Date        $Author         $Comment
** 17 JUN 2009  Xu Liang        Init Version
*******************************************************************************/

#ifndef IFXMIPS_PTM_ADSL_H
#define IFXMIPS_PTM_ADSL_H



#include <linux/netdevice.h>
#include <asm/mach-infineon/ifx_ptm.h>
#include "ifxmips_ptm_common.h"
#include "ifxmips_ptm_ppe_common.h"
#include "ifxmips_ptm_fw_regs_adsl.h"

/*
 *  ###################################
 *              Kernel Adaption
 *  ###################################
 */
#undef NEW_NAPI
#if KERNEL_VERSION(2,6,28)
#define NEW_NAPI 1
#endif


/*
 * ####################################
 *              Definition
 * ####################################
 */

/*
 *  Constant Definition
 */
#define ETH_WATCHDOG_TIMEOUT            (10 * HZ)

/*
 *  DMA RX/TX Channel Parameters
 */
#define MAX_ITF_NUMBER                  2
#define MAX_RX_DMA_CHANNEL_NUMBER       MAX_ITF_NUMBER
#define MAX_TX_DMA_CHANNEL_NUMBER       MAX_ITF_NUMBER
#define DATA_BUFFER_ALIGNMENT           EMA_ALIGNMENT
#define DESC_ALIGNMENT                  8

/*
 *  Ethernet Frame Definitions
 */
#define ETH_MAC_HEADER_LENGTH           14
#define ETH_CRC_LENGTH                  4
#define ETH_MIN_FRAME_LENGTH            64
#define ETH_MAX_FRAME_LENGTH            (1518 + 4 * 2)

/*
 *  RX Frame Definitions
 */
#define RX_HEAD_MAC_ADDR_ALIGNMENT      2
#define RX_TAIL_CRC_LENGTH              0   //  PTM firmware does not have ethernet frame CRC
                                            //  The len in descriptor doesn't include ETH_CRC
                                            //  because ETH_CRC may not present in some configuration



/*
 * ####################################
 *              Data Type
 * ####################################
 */

struct ptm_itf {
    volatile struct rx_descriptor  *rx_desc;
    unsigned int                    rx_desc_pos;

    volatile struct tx_descriptor  *tx_desc;
    unsigned int                    tx_desc_pos;
    struct sk_buff                **tx_skb;

    struct net_device_stats         stats;
};

struct ptm_priv_data {
    struct ptm_itf                  itf[MAX_ITF_NUMBER];

    void                           *rx_desc_base;
    void                           *tx_desc_base;
    void                           *tx_skb_base;

#ifdef NEW_NAPI
    struct napi_struct				napi;
    struct net_device				*netdev;
#endif
};



/*
 * ####################################
 *             Declaration
 * ####################################
 */

extern unsigned int ifx_ptm_dbg_enable;

extern void ifx_ptm_get_fw_ver(unsigned int *major, unsigned int *minor);

extern void ifx_ptm_init_chip(void);
extern void ifx_ptm_uninit_chip(void);

extern int ifx_pp32_start(int pp32);
extern void ifx_pp32_stop(int pp32);

extern void ifx_reset_ppe(void);

extern int ifx_ptm_proc_read_regs(char *page, char **start, off_t off, int count, int *eof, void *data);



#endif  //  IFXMIPS_PTM_ADSL_H