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 177 178