Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
ni65.h
Go to the documentation of this file.
1 /* am7990 (lance) definitions
2  *
3  * This is an extension to the Linux operating system, and is covered by
4  * same GNU General Public License that covers that work.
5  *
6  * Michael Hipp
7  * email: [email protected]
8  *
9  * sources: (mail me or ask archie if you need them)
10  * crynwr-packet-driver
11  */
12 
13 /*
14  * Control and Status Register 0 (CSR0) bit definitions
15  * (R=Readable) (W=Writeable) (S=Set on write) (C-Clear on write)
16  *
17  */
18 
19 #define CSR0_ERR 0x8000 /* Error summary (R) */
20 #define CSR0_BABL 0x4000 /* Babble transmitter timeout error (RC) */
21 #define CSR0_CERR 0x2000 /* Collision Error (RC) */
22 #define CSR0_MISS 0x1000 /* Missed packet (RC) */
23 #define CSR0_MERR 0x0800 /* Memory Error (RC) */
24 #define CSR0_RINT 0x0400 /* Receiver Interrupt (RC) */
25 #define CSR0_TINT 0x0200 /* Transmit Interrupt (RC) */
26 #define CSR0_IDON 0x0100 /* Initialization Done (RC) */
27 #define CSR0_INTR 0x0080 /* Interrupt Flag (R) */
28 #define CSR0_INEA 0x0040 /* Interrupt Enable (RW) */
29 #define CSR0_RXON 0x0020 /* Receiver on (R) */
30 #define CSR0_TXON 0x0010 /* Transmitter on (R) */
31 #define CSR0_TDMD 0x0008 /* Transmit Demand (RS) */
32 #define CSR0_STOP 0x0004 /* Stop (RS) */
33 #define CSR0_STRT 0x0002 /* Start (RS) */
34 #define CSR0_INIT 0x0001 /* Initialize (RS) */
35 
36 #define CSR0_CLRALL 0x7f00 /* mask for all clearable bits */
37 /*
38  * Initialization Block Mode operation Bit Definitions.
39  */
40 
41 #define M_PROM 0x8000 /* Promiscuous Mode */
42 #define M_INTL 0x0040 /* Internal Loopback */
43 #define M_DRTY 0x0020 /* Disable Retry */
44 #define M_COLL 0x0010 /* Force Collision */
45 #define M_DTCR 0x0008 /* Disable Transmit CRC) */
46 #define M_LOOP 0x0004 /* Loopback */
47 #define M_DTX 0x0002 /* Disable the Transmitter */
48 #define M_DRX 0x0001 /* Disable the Receiver */
49 
50 
51 /*
52  * Receive message descriptor bit definitions.
53  */
54 
55 #define RCV_OWN 0x80 /* owner bit 0 = host, 1 = lance */
56 #define RCV_ERR 0x40 /* Error Summary */
57 #define RCV_FRAM 0x20 /* Framing Error */
58 #define RCV_OFLO 0x10 /* Overflow Error */
59 #define RCV_CRC 0x08 /* CRC Error */
60 #define RCV_BUF_ERR 0x04 /* Buffer Error */
61 #define RCV_START 0x02 /* Start of Packet */
62 #define RCV_END 0x01 /* End of Packet */
63 
64 
65 /*
66  * Transmit message descriptor bit definitions.
67  */
68 
69 #define XMIT_OWN 0x80 /* owner bit 0 = host, 1 = lance */
70 #define XMIT_ERR 0x40 /* Error Summary */
71 #define XMIT_RETRY 0x10 /* more the 1 retry needed to Xmit */
72 #define XMIT_1_RETRY 0x08 /* one retry needed to Xmit */
73 #define XMIT_DEF 0x04 /* Deferred */
74 #define XMIT_START 0x02 /* Start of Packet */
75 #define XMIT_END 0x01 /* End of Packet */
76 
77 /*
78  * transmit status (2) (valid if XMIT_ERR == 1)
79  */
80 
81 #define XMIT_TDRMASK 0x03ff /* time-domain-reflectometer-value */
82 #define XMIT_RTRY 0x0400 /* Failed after 16 retransmissions */
83 #define XMIT_LCAR 0x0800 /* Loss of Carrier */
84 #define XMIT_LCOL 0x1000 /* Late collision */
85 #define XMIT_RESERV 0x2000 /* Reserved */
86 #define XMIT_UFLO 0x4000 /* Underflow (late memory) */
87 #define XMIT_BUFF 0x8000 /* Buffering error (no ENP) */
88 
89 struct init_block {
90  unsigned short mode;
91  unsigned char eaddr[6];
92  unsigned char filter[8];
93  /* bit 29-31: number of rmd's (power of 2) */
94  u32 rrp; /* receive ring pointer (align 8) */
95  /* bit 29-31: number of tmd's (power of 2) */
96  u32 trp; /* transmit ring pointer (align 8) */
97 };
98 
99 struct rmd { /* Receive Message Descriptor */
100  union {
101  volatile u32 buffer;
102  struct {
103  volatile unsigned char dummy[3];
104  volatile unsigned char status;
105  } s;
106  } u;
107  volatile short blen;
108  volatile unsigned short mlen;
109 };
110 
111 struct tmd {
112  union {
113  volatile u32 buffer;
114  struct {
115  volatile unsigned char dummy[3];
116  volatile unsigned char status;
117  } s;
118  } u;
119  volatile unsigned short blen;
120  volatile unsigned short status2;
121 };