| /* | |
| * (C) Copyright 2008 | |
| * Gary Jennejohn, DENX Software Engineering GmbH, garyj@denx.de. | |
| * | |
| * See file CREDITS for list of people who contributed to this | |
| * project. | |
| * | |
| * 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., 59 Temple Place, Suite 330, Boston, | |
| * MA 02111-1307 USA | |
| */ | |
| #ifndef _KEYMILE_HDLC_ENET_H_ | |
| #define _KEYMILE_HDLC_ENET_H_ | |
| /* Unfortuantely, we have do this to get the flag defines in the cbd_t */ | |
| #ifdef CONFIG_MGSUVD | |
| #include <commproc.h> | |
| #endif | |
| #ifdef CONFIG_MGCOGE | |
| #include <mpc8260.h> | |
| #include <asm/cpm_8260.h> | |
| #endif | |
| /* | |
| * Defines for the ICN protocol used for communication over HDLC | |
| * on the backplane between MGSUVDs and MGCOGEs. | |
| */ | |
| /* | |
| * MAC which is reserved for communication (0x00 - 0xff in the last byte, | |
| * which is the slot number) | |
| */ | |
| /* | |
| * A DLL frame looks like this: | |
| * 8 bit | 8 bit | 8 bit | 8 bit | n * 8 bit| 16 bit| 8 bit | |
| * opening| destination| source | application| data | FCS | closing | |
| * flag | address | address| | | | flag | |
| * (HW) (APP) (APP) (APP) (APP) (HW) (HW) | |
| */ | |
| /* | |
| * The opening flag, the FCS and the closing flag are set by the hardware so | |
| * they are not reflected in this struct. | |
| */ | |
| struct icn_hdr { | |
| unsigned char dest_addr; | |
| unsigned char src_addr; | |
| unsigned char application; | |
| } __attribute__((packed)); | |
| #define ICNHDR_LEN (sizeof(struct icn_hdr)) | |
| #define CRC_LEN (sizeof(short)) | |
| /* bytes to remove from packet before sending it upstream */ | |
| #define REMOVE (ICNHDR_LEN + CRC_LEN) | |
| struct icn_frame { | |
| struct icn_hdr hdr; | |
| unsigned char data[0]; /* a place holder */ | |
| } __attribute__((packed)); | |
| /* Address field */ | |
| #define HDLC_UUA 0x00 /* Unicast Unit Address */ | |
| #define HDLC_UUA_MASK 0x3f /* the last 6 bits contain the slot number */ | |
| #define SET_HDLC_UUA(x) ((HDLC_UUA | ((x) & HDLC_UUA_MASK))) | |
| #define HDLC_UACUA 0x7f /* Unicast Active Control Unit Address */ | |
| #define HDLC_BCAST 0xff /* broadcast */ | |
| /* Application field */ | |
| #define MGS_UUSP 0x00 | |
| #define MGS_UREP 0x01 | |
| #define MGS_IUP 0x02 | |
| #define MGS_UTA 0x03 | |
| #define MGS_MDS 0x04 | |
| #define MGS_ITIME 0x05 | |
| /* added by DENX */ | |
| #define MGS_NETCONS 0x06 /* netconsole */ | |
| #define MGS_TFTP 0x07 | |
| /* Useful defines for buffer sizes, etc. */ | |
| #define HDLC_PKTBUFSRX 32 | |
| #define MAX_FRAME_LENGTH 1500 /* ethernet frame size */ | |
| /* 14 + 28 */ | |
| #define INET_HDR_SIZE (ETHER_HDR_SIZE + IP_HDR_SIZE) | |
| #define INET_HDR_ALIGN (((INET_HDR_SIZE + PKTALIGN - 1) / PKTALIGN) * PKTALIGN) | |
| /* INET_HDR_SIZE is stripped off */ | |
| #define PKT_MAXBLR_SIZE (MAX_FRAME_LENGTH + INET_HDR_ALIGN) | |
| /* | |
| * It is too slow to read always the port numbers and IP addresses from the | |
| * string variables. | |
| * cachedNumbers is meant to cache it. | |
| * THIS IS ONLY A SPEED IMPROVEMENT! | |
| */ | |
| enum { | |
| IP_ADDR = 0, /* getenv_IPaddr("serverip"); */ | |
| IP_SERVER, /* getenv_IPaddr("ipaddr"); */ | |
| TFTP_SRC_PORT, /* simple_strtol(getenv("tftpsrcp"), NULL, 10); */ | |
| TFTP_DST_PORT, /* simple_strtol(getenv("tftpdstp"), NULL, 10); */ | |
| NETCONS_PORT, /* simple_strtol(getenv("ncip"), NULL, 10); */ | |
| CACHEDNUMBERS | |
| }; | |
| #define WELL_KNOWN_PORT 69 /* Well known TFTP port # */ | |
| /* define this to create a test commend (htest) */ | |
| #undef TEST_IT | |
| #ifdef TEST_IT | |
| /* have to save a copy of the eth_device for the test command's use */ | |
| struct eth_device *seth; | |
| #endif | |
| /* define this for outputting of received packets */ | |
| #undef TEST_RX | |
| /* define this for outputting of packets being sent */ | |
| #undef TEST_TX | |
| #endif /* _KEYMILE_HDLC_ENET_H_ */ |