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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * eexpress.h: Intel EtherExpress16 defines
3 */
4
5/*
6 * EtherExpress card register addresses
7 * as offsets from the base IO region (dev->base_addr)
8 */
9
10#define DATAPORT 0x0000
11#define WRITE_PTR 0x0002
12#define READ_PTR 0x0004
13#define SIGNAL_CA 0x0006
14#define SET_IRQ 0x0007
15#define SM_PTR 0x0008
16#define MEM_Dec 0x000a
17#define MEM_Ctrl 0x000b
18#define MEM_Page_Ctrl 0x000c
19#define Config 0x000d
20#define EEPROM_Ctrl 0x000e
21#define ID_PORT 0x000f
22#define MEM_ECtrl 0x000f
23
24/*
25 * card register defines
26 */
27
28/* SET_IRQ */
29#define SIRQ_en 0x08
30#define SIRQ_dis 0x00
31
32/* EEPROM_Ctrl */
33#define EC_Clk 0x01
34#define EC_CS 0x02
35#define EC_Wr 0x04
36#define EC_Rd 0x08
37#define ASIC_RST 0x40
38#define i586_RST 0x80
39
40#define eeprom_delay() { udelay(40); }
41
42/*
43 * i82586 Memory Configuration
44 */
45
46/* (System Configuration Pointer) System start up block, read after 586_RST */
47#define SCP_START 0xfff6
48
49/* Intermediate System Configuration Pointer */
50#define ISCP_START 0x0000
51
52/* System Command Block */
53#define SCB_START 0x0008
54
55/* Start of buffer region. Everything before this is used for control
Jeff Garzik6aa20a22006-09-13 13:24:59 -040056 * structures and the CU configuration program. The memory layout is
57 * determined in eexp_hw_probe(), once we know how much memory is
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 * available on the card.
59 */
60
61#define TX_BUF_START 0x0100
62
63#define TX_BUF_SIZE ((24+ETH_FRAME_LEN+31)&~0x1f)
64#define RX_BUF_SIZE ((32+ETH_FRAME_LEN+31)&~0x1f)
65
66/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -040067 * SCB defines
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 */
69
70/* these functions take the SCB status word and test the relevant status bit */
Roel Kluin684f4a42008-12-29 18:42:33 -080071#define SCB_complete(s) (((s) & 0x8000) != 0)
72#define SCB_rxdframe(s) (((s) & 0x4000) != 0)
73#define SCB_CUdead(s) (((s) & 0x2000) != 0)
74#define SCB_RUdead(s) (((s) & 0x1000) != 0)
75#define SCB_ack(s) ((s) & 0xf000)
Linus Torvalds1da177e2005-04-16 15:20:36 -070076
77/* Command unit status: 0=idle, 1=suspended, 2=active */
Roel Kluin684f4a42008-12-29 18:42:33 -080078#define SCB_CUstat(s) (((s)&0x0300)>>8)
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80/* Receive unit status: 0=idle, 1=suspended, 2=out of resources, 4=ready */
Roel Kluin684f4a42008-12-29 18:42:33 -080081#define SCB_RUstat(s) (((s)&0x0070)>>4)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83/* SCB commands */
84#define SCB_CUnop 0x0000
85#define SCB_CUstart 0x0100
86#define SCB_CUresume 0x0200
87#define SCB_CUsuspend 0x0300
88#define SCB_CUabort 0x0400
89#define SCB_resetchip 0x0080
90
91#define SCB_RUnop 0x0000
92#define SCB_RUstart 0x0010
93#define SCB_RUresume 0x0020
94#define SCB_RUsuspend 0x0030
95#define SCB_RUabort 0x0040
96
97/*
Jeff Garzik6aa20a22006-09-13 13:24:59 -040098 * Command block defines
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 */
100
Roel Kluin684f4a42008-12-29 18:42:33 -0800101#define Stat_Done(s) (((s) & 0x8000) != 0)
102#define Stat_Busy(s) (((s) & 0x4000) != 0)
103#define Stat_OK(s) (((s) & 0x2000) != 0)
104#define Stat_Abort(s) (((s) & 0x1000) != 0)
105#define Stat_STFail (((s) & 0x0800) != 0)
106#define Stat_TNoCar(s) (((s) & 0x0400) != 0)
107#define Stat_TNoCTS(s) (((s) & 0x0200) != 0)
108#define Stat_TNoDMA(s) (((s) & 0x0100) != 0)
109#define Stat_TDefer(s) (((s) & 0x0080) != 0)
110#define Stat_TColl(s) (((s) & 0x0040) != 0)
111#define Stat_TXColl(s) (((s) & 0x0020) != 0)
112#define Stat_NoColl(s) ((s) & 0x000f)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
114/* Cmd_END will end AFTER the command if this is the first
115 * command block after an SCB_CUstart, but BEFORE the command
116 * for all subsequent commands. Best strategy is to place
117 * Cmd_INT on the last command in the sequence, followed by a
118 * dummy Cmd_Nop with Cmd_END after this.
119 */
120
121#define Cmd_END 0x8000
122#define Cmd_SUS 0x4000
123#define Cmd_INT 0x2000
124
125#define Cmd_Nop 0x0000
126#define Cmd_SetAddr 0x0001
127#define Cmd_Config 0x0002
128#define Cmd_MCast 0x0003
129#define Cmd_Xmit 0x0004
130#define Cmd_TDR 0x0005
131#define Cmd_Dump 0x0006
132#define Cmd_Diag 0x0007
133
134
135/*
136 * Frame Descriptor (Receive block) defines
137 */
138
Roel Kluin684f4a42008-12-29 18:42:33 -0800139#define FD_Done(s) (((s) & 0x8000) != 0)
140#define FD_Busy(s) (((s) & 0x4000) != 0)
141#define FD_OK(s) (((s) & 0x2000) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
Roel Kluin684f4a42008-12-29 18:42:33 -0800143#define FD_CRC(s) (((s) & 0x0800) != 0)
144#define FD_Align(s) (((s) & 0x0400) != 0)
145#define FD_Resrc(s) (((s) & 0x0200) != 0)
146#define FD_DMA(s) (((s) & 0x0100) != 0)
147#define FD_Short(s) (((s) & 0x0080) != 0)
148#define FD_NoEOF(s) (((s) & 0x0040) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
150struct rfd_header {
151 volatile unsigned long flags;
152 volatile unsigned short link;
153 volatile unsigned short rbd_offset;
154 volatile unsigned short dstaddr1;
155 volatile unsigned short dstaddr2;
156 volatile unsigned short dstaddr3;
157 volatile unsigned short srcaddr1;
158 volatile unsigned short srcaddr2;
159 volatile unsigned short srcaddr3;
160 volatile unsigned short length;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400161
162 /* This is actually a Receive Buffer Descriptor. The way we
163 * arrange memory means that an RBD always follows the RFD that
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 * points to it, so they might as well be in the same structure.
165 */
166 volatile unsigned short actual_count;
167 volatile unsigned short next_rbd;
168 volatile unsigned short buf_addr1;
169 volatile unsigned short buf_addr2;
170 volatile unsigned short size;
171};
172
173/* Returned data from the Time Domain Reflectometer */
174
175#define TDR_LINKOK (1<<15)
176#define TDR_XCVRPROBLEM (1<<14)
177#define TDR_OPEN (1<<13)
178#define TDR_SHORT (1<<12)
179#define TDR_TIME 0x7ff