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/*
* drivers/net/fec_1588.h
*
* Copyright (C) 2010 Freescale Semiconductor, Inc.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifndef FEC_1588_H
#define FEC_1588_H
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/circ_buf.h>
#define FALSE 0
#define TRUE 1
/* FEC 1588 register bits */
#define FEC_T_CTRL_SLAVE 0x00002000
#define FEC_T_CTRL_CAPTURE 0x00000800
#define FEC_T_CTRL_RESTART 0x00000200
#define FEC_T_CTRL_PERIOD_RST 0x00000030
#define FEC_T_CTRL_ENABLE 0x00000001
#define FEC_T_INC_MASK 0x0000007f
#define FEC_T_INC_OFFSET 0
#define FEC_T_INC_CORR_MASK 0x00007f00
#define FEC_T_INC_CORR_OFFSET 8
#define FEC_T_INC_40MHZ 25
#define FEC_ATIME_40MHZ 40000000
#define FEC_T_PERIOD_ONE_SEC 0x3B9ACA00
/* IEEE 1588 definition */
#define FEC_ECNTRL_TS_EN 0x10
#define PTP_MAJOR 232 /*the temporary major number
*used by PTP driver, the major
*number 232~239 is unassigned*/
#define DEFAULT_PTP_RX_BUF_SZ 2048
#define DEFAULT_PTP_TX_BUF_SZ 16
#define PTP_MSG_SYNC 0x0
#define PTP_MSG_DEL_REQ 0x1
#define PTP_MSG_P_DEL_REQ 0x2
#define PTP_MSG_P_DEL_RESP 0x3
#define PTP_MSG_DEL_RESP 0x4
#define PTP_MSG_ALL_OTHER 0x5
#define PTP_GET_TX_TIMESTAMP 0x1
#define PTP_GET_RX_TIMESTAMP 0x9
#define PTP_SET_RTC_TIME 0x3
#define PTP_SET_COMPENSATION 0x4
#define PTP_GET_CURRENT_TIME 0x5
#define PTP_FLUSH_TIMESTAMP 0x6
#define PTP_ADJ_ADDEND 0x7
#define PTP_GET_ORIG_COMP 0x8
#define PTP_GET_ADDEND 0xB
#define PTP_GET_RX_TIMESTAMP_PDELAY_REQ 0xC
#define PTP_GET_RX_TIMESTAMP_PDELAY_RESP 0xD
#define FEC_PTP_DOMAIN_DLFT 0xe0000181
#define FEC_PTP_IP_OFFS 0xE
#define FEC_PTP_UDP_OFFS 0x22
#define FEC_PTP_MSG_TYPE_OFFS 0x2A
#define FEC_PTP_SPORT_ID_OFFS 0x3E
#define FEC_PTP_SEQ_ID_OFFS 0x48
#define FEC_PTP_CTRL_OFFS 0x4A
#define FEC_PACKET_TYPE_UDP 0x11
#define FEC_PTP_ORIG_COMP 0x15555555
/* PTP standard time representation structure */
struct ptp_time{
u64 sec; /* seconds */
u32 nsec; /* nanoseconds */
};
/* Structure for PTP Time Stamp */
struct fec_ptp_data_t {
u8 spid[10];
int key;
struct ptp_time ts_time;
};
/* interface for PTP driver command GET_TX_TIME */
struct ptp_ts_data {
/* PTP version */
u8 version;
/* PTP source port ID */
u8 spid[10];
/* PTP sequence ID */
u16 seq_id;
/* PTP message type */
u8 message_type;
/* PTP timestamp */
struct ptp_time ts;
};
/* interface for PTP driver command SET_RTC_TIME/GET_CURRENT_TIME */
struct ptp_rtc_time {
struct ptp_time rtc_time;
};
/* interface for PTP driver command SET_COMPENSATION */
struct ptp_set_comp {
u32 drift;
bool o_ops;
u32 freq_compensation;
};
/* interface for PTP driver command GET_ORIG_COMP */
struct ptp_get_comp {
/* the initial compensation value */
u32 dw_origcomp;
/* the minimum compensation value */
u32 dw_mincomp;
/*the max compensation value*/
u32 dw_maxcomp;
/*the min drift applying min compensation value in ppm*/
u32 dw_mindrift;
/*the max drift applying max compensation value in ppm*/
u32 dw_maxdrift;
};
struct ptp_time_correct {
u32 corr_period;
u32 corr_inc;
};
/* PTP message version */
#define PTP_1588_MSG_VER_1 1
#define PTP_1588_MSG_VER_2 2
#define BD_ENET_TX_TS 0x20000000
#define BD_ENET_TX_BDU 0x80000000
struct fec_ptp_private {
void __iomem *hwp;
int dev_id;
struct circ_buf rx_time_sync;
struct circ_buf rx_time_del_req;
struct circ_buf rx_time_pdel_req;
struct circ_buf rx_time_pdel_resp;
struct circ_buf tx_time_sync;
struct circ_buf tx_time_del_req;
struct circ_buf tx_time_pdel_req;
struct circ_buf tx_time_pdel_resp;
spinlock_t ptp_lock;
spinlock_t cnt_lock;
u64 prtc;
u8 ptp_active;
u8 ptp_slave;
struct circ_buf txstamp;
};
#ifdef CONFIG_FEC_1588
static inline int fec_ptp_malloc_priv(struct fec_ptp_private **priv)
{
*priv = kzalloc(sizeof(struct fec_ptp_private), GFP_KERNEL);
return 1;
}
extern int fec_ptp_init(struct fec_ptp_private *priv, int id);
extern void fec_ptp_cleanup(struct fec_ptp_private *priv);
extern int fec_ptp_start(struct fec_ptp_private *priv);
extern void fec_ptp_stop(struct fec_ptp_private *priv);
extern int fec_ptp_do_txstamp(struct sk_buff *skb);
extern void fec_ptp_store_txstamp(struct fec_ptp_private *priv,
struct sk_buff *skb,
struct bufdesc *bdp);
extern void fec_ptp_store_rxstamp(struct fec_ptp_private *priv,
struct sk_buff *skb,
struct bufdesc *bdp);
#else
static inline int fec_ptp_malloc_priv(struct fec_ptp_private **priv)
{
return 0;
}
static inline int fec_ptp_init(struct fec_ptp_private *priv, int id)
{
return 1;
}
static inline void fec_ptp_cleanup(struct fec_ptp_private *priv) { }
static inline int fec_ptp_start(struct fec_ptp_private *priv)
{
return 1;
}
static inline void fec_ptp_stop(struct fec_ptp_private *priv) {}
static inline int fec_ptp_do_txstamp(struct sk_buff *skb)
{
return 0;
}
static inline void fec_ptp_store_txstamp(struct fec_ptp_private *priv,
struct sk_buff *skb,
struct bufdesc *bdp) {}
static inline void fec_ptp_store_rxstamp(struct fec_ptp_private *priv,
struct sk_buff *skb,
struct bufdesc *bdp) {}
#endif /* 1588 */
#endif
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