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1da177e4 LT |
1 | /*********************************** |
2 | * $Id: m68360_enet.h,v 1.1 2002/03/02 15:01:07 gerg Exp $ | |
3 | *********************************** | |
4 | * | |
5 | *************************************** | |
6 | * Definitions for the ETHERNET controllers | |
7 | *************************************** | |
8 | */ | |
9 | ||
10 | #ifndef __ETHER_H | |
11 | #define __ETHER_H | |
12 | ||
13 | #include "quicc_simple.h" | |
14 | ||
15 | /* | |
16 | * transmit BD's | |
17 | */ | |
18 | #define T_R 0x8000 /* ready bit */ | |
19 | #define E_T_PAD 0x4000 /* short frame padding */ | |
20 | #define T_W 0x2000 /* wrap bit */ | |
21 | #define T_I 0x1000 /* interrupt on completion */ | |
22 | #define T_L 0x0800 /* last in frame */ | |
23 | #define T_TC 0x0400 /* transmit CRC (when last) */ | |
24 | ||
25 | #define T_DEF 0x0200 /* defer indication */ | |
26 | #define T_HB 0x0100 /* heartbeat */ | |
27 | #define T_LC 0x0080 /* error: late collision */ | |
28 | #define T_RL 0x0040 /* error: retransmission limit */ | |
29 | #define T_RC 0x003c /* retry count */ | |
30 | #define T_UN 0x0002 /* error: underrun */ | |
31 | #define T_CSL 0x0001 /* carier sense lost */ | |
32 | #define T_ERROR (T_HB | T_LC | T_RL | T_UN | T_CSL) | |
33 | ||
34 | /* | |
35 | * receive BD's | |
36 | */ | |
37 | #define R_E 0x8000 /* buffer empty */ | |
38 | #define R_W 0x2000 /* wrap bit */ | |
39 | #define R_I 0x1000 /* interrupt on reception */ | |
40 | #define R_L 0x0800 /* last BD in frame */ | |
41 | #define R_F 0x0400 /* first BD in frame */ | |
42 | #define R_M 0x0100 /* received because of promisc. mode */ | |
43 | ||
44 | #define R_LG 0x0020 /* frame too long */ | |
45 | #define R_NO 0x0010 /* non-octet aligned */ | |
46 | #define R_SH 0x0008 /* short frame */ | |
47 | #define R_CR 0x0004 /* receive CRC error */ | |
48 | #define R_OV 0x0002 /* receive overrun */ | |
49 | #define R_CL 0x0001 /* collision */ | |
50 | #define ETHER_R_ERROR (R_LG | R_NO | R_SH | R_CR | R_OV | R_CL) | |
51 | ||
52 | ||
53 | /* | |
54 | * ethernet interrupts | |
55 | */ | |
56 | #define ETHERNET_GRA 0x0080 /* graceful stop complete */ | |
57 | #define ETHERNET_TXE 0x0010 /* transmit error */ | |
58 | #define ETHERNET_RXF 0x0008 /* receive frame */ | |
59 | #define ETHERNET_BSY 0x0004 /* busy condition */ | |
60 | #define ETHERNET_TXB 0x0002 /* transmit buffer */ | |
61 | #define ETHERNET_RXB 0x0001 /* receive buffer */ | |
62 | ||
63 | /* | |
64 | * ethernet protocol specific mode register (PSMR) | |
65 | */ | |
66 | #define ETHER_HBC 0x8000 /* heartbeat checking */ | |
67 | #define ETHER_FC 0x4000 /* force collision */ | |
68 | #define ETHER_RSH 0x2000 /* receive short frames */ | |
69 | #define ETHER_IAM 0x1000 /* individual address mode */ | |
70 | #define ETHER_CRC_32 (0x2<<10) /* Enable CRC */ | |
71 | #define ETHER_PRO 0x0200 /* promiscuous */ | |
72 | #define ETHER_BRO 0x0100 /* broadcast address */ | |
73 | #define ETHER_SBT 0x0080 /* stop backoff timer */ | |
74 | #define ETHER_LPB 0x0040 /* Loop Back Mode */ | |
75 | #define ETHER_SIP 0x0020 /* sample input pins */ | |
76 | #define ETHER_LCW 0x0010 /* late collision window */ | |
77 | #define ETHER_NIB_13 (0x0<<1) /* # of ignored bits 13 */ | |
78 | #define ETHER_NIB_14 (0x1<<1) /* # of ignored bits 14 */ | |
79 | #define ETHER_NIB_15 (0x2<<1) /* # of ignored bits 15 */ | |
80 | #define ETHER_NIB_16 (0x3<<1) /* # of ignored bits 16 */ | |
81 | #define ETHER_NIB_21 (0x4<<1) /* # of ignored bits 21 */ | |
82 | #define ETHER_NIB_22 (0x5<<1) /* # of ignored bits 22 */ | |
83 | #define ETHER_NIB_23 (0x6<<1) /* # of ignored bits 23 */ | |
84 | #define ETHER_NIB_24 (0x7<<1) /* # of ignored bits 24 */ | |
85 | ||
86 | /* | |
87 | * ethernet specific parameters | |
88 | */ | |
89 | #define CRC_WORD 4 /* Length in bytes of CRC */ | |
90 | #define C_PRES 0xffffffff /* preform 32 bit CRC */ | |
91 | #define C_MASK 0xdebb20e3 /* comply with 32 bit CRC */ | |
92 | #define CRCEC 0x00000000 | |
93 | #define ALEC 0x00000000 | |
94 | #define DISFC 0x00000000 | |
95 | #define PADS 0x00000000 | |
96 | #define RET_LIM 0x000f /* retry 15 times to send a frame before interrupt */ | |
97 | #define ETH_MFLR 0x05ee /* 1518 max frame size */ | |
98 | #define MINFLR 0x0040 /* Minimum frame size 64 */ | |
99 | #define MAXD1 0x05ee /* Max dma count 1518 */ | |
100 | #define MAXD2 0x05ee | |
101 | #define GADDR1 0x00000000 /* Clear group address */ | |
102 | #define GADDR2 0x00000000 | |
103 | #define GADDR3 0x00000000 | |
104 | #define GADDR4 0x00000000 | |
105 | #define P_PER 0x00000000 /*not used */ | |
106 | #define IADDR1 0x00000000 /* Individual hash table not used */ | |
107 | #define IADDR2 0x00000000 | |
108 | #define IADDR3 0x00000000 | |
109 | #define IADDR4 0x00000000 | |
110 | #define TADDR_H 0x00000000 /* clear this regs */ | |
111 | #define TADDR_M 0x00000000 | |
112 | #define TADDR_L 0x00000000 | |
113 | ||
114 | /* SCC Parameter Ram */ | |
115 | #define RFCR 0x18 /* normal operation */ | |
116 | #define TFCR 0x18 /* normal operation */ | |
117 | #define E_MRBLR 1518 /* Max ethernet frame length */ | |
118 | ||
119 | /* | |
120 | * ethernet specific structure | |
121 | */ | |
122 | typedef union { | |
123 | unsigned char b[6]; | |
124 | struct { | |
125 | unsigned short high; | |
126 | unsigned short middl; | |
127 | unsigned short low; | |
128 | } w; | |
129 | } ETHER_ADDR; | |
130 | ||
131 | typedef struct { | |
132 | int max_frame_length; | |
133 | int promisc_mode; | |
134 | int reject_broadcast; | |
135 | ETHER_ADDR phys_adr; | |
136 | } ETHER_SPECIFIC; | |
137 | ||
138 | typedef struct { | |
139 | ETHER_ADDR dst_addr; | |
140 | ETHER_ADDR src_addr; | |
141 | unsigned short type_or_len; | |
142 | unsigned char data[1]; | |
143 | } ETHER_FRAME; | |
144 | ||
145 | #define MAX_DATALEN 1500 | |
146 | typedef struct { | |
147 | ETHER_ADDR dst_addr; | |
148 | ETHER_ADDR src_addr; | |
149 | unsigned short type_or_len; | |
150 | unsigned char data[MAX_DATALEN]; | |
151 | unsigned char fcs[CRC_WORD]; | |
152 | } ETHER_MAX_FRAME; | |
153 | ||
154 | ||
155 | /* | |
156 | * Internal ethernet function prototypes | |
157 | */ | |
158 | void ether_interrupt(int scc_num); | |
159 | /* mleslie: debug */ | |
160 | /* static void ethernet_rx_internal(int scc_num); */ | |
161 | /* static void ethernet_tx_internal(int scc_num); */ | |
162 | ||
163 | /* | |
164 | * User callable routines prototypes (ethernet specific) | |
165 | */ | |
166 | void ethernet_init(int scc_number, | |
167 | alloc_routine *alloc_buffer, | |
168 | free_routine *free_buffer, | |
169 | store_rx_buffer_routine *store_rx_buffer, | |
170 | handle_tx_error_routine *handle_tx_error, | |
171 | handle_rx_error_routine *handle_rx_error, | |
172 | handle_lost_error_routine *handle_lost_error, | |
173 | ETHER_SPECIFIC *ether_spec); | |
174 | int ethernet_tx(int scc_number, void *buf, int length); | |
175 | ||
176 | #endif | |
177 |