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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/atm/midway.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/atm/midway.h')
-rw-r--r--drivers/atm/midway.h265
1 files changed, 265 insertions, 0 deletions
diff --git a/drivers/atm/midway.h b/drivers/atm/midway.h
new file mode 100644
index 000000000000..432525ad5e46
--- /dev/null
+++ b/drivers/atm/midway.h
@@ -0,0 +1,265 @@
1/* drivers/atm/midway.h - Efficient Networks Midway (SAR) description */
2
3/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
4
5
6#ifndef DRIVERS_ATM_MIDWAY_H
7#define DRIVERS_ATM_MIDWAY_H
8
9
10#define NR_VCI 1024 /* number of VCIs */
11#define NR_VCI_LD 10 /* log2(NR_VCI) */
12#define NR_DMA_RX 512 /* RX DMA queue entries */
13#define NR_DMA_TX 512 /* TX DMA queue entries */
14#define NR_SERVICE NR_VCI /* service list size */
15#define NR_CHAN 8 /* number of TX channels */
16#define TS_CLOCK 25000000 /* traffic shaper clock (cell/sec) */
17
18#define MAP_MAX_SIZE 0x00400000 /* memory window for max config */
19#define EPROM_SIZE 0x00010000
20#define MEM_VALID 0xffc00000 /* mask base address with this */
21#define PHY_BASE 0x00020000 /* offset of PHY register are */
22#define REG_BASE 0x00040000 /* offset of Midway register area */
23#define RAM_BASE 0x00200000 /* offset of RAM area */
24#define RAM_INCREMENT 0x00020000 /* probe for RAM every 128kB */
25
26#define MID_VCI_BASE RAM_BASE
27#define MID_DMA_RX_BASE (MID_VCI_BASE+NR_VCI*16)
28#define MID_DMA_TX_BASE (MID_DMA_RX_BASE+NR_DMA_RX*8)
29#define MID_SERVICE_BASE (MID_DMA_TX_BASE+NR_DMA_TX*8)
30#define MID_FREE_BASE (MID_SERVICE_BASE+NR_SERVICE*4)
31
32#define MAC_LEN 6 /* atm.h */
33
34#define MID_MIN_BUF_SIZE (1024) /* 1 kB is minimum */
35#define MID_MAX_BUF_SIZE (128*1024) /* 128 kB is maximum */
36
37#define RX_DESCR_SIZE 1 /* RX PDU descr is 1 longword */
38#define TX_DESCR_SIZE 2 /* TX PDU descr is 2 longwords */
39#define AAL5_TRAILER (ATM_AAL5_TRAILER/4) /* AAL5 trailer is 2 longwords */
40
41#define TX_GAP 8 /* TX buffer gap (words) */
42
43/*
44 * Midway Reset/ID
45 *
46 * All values read-only. Writing to this register resets Midway chip.
47 */
48
49#define MID_RES_ID_MCON 0x00 /* Midway Reset/ID */
50
51#define MID_ID 0xf0000000 /* Midway version */
52#define MID_SHIFT 24
53#define MID_MOTHER_ID 0x00000700 /* mother board id */
54#define MID_MOTHER_SHIFT 8
55#define MID_CON_TI 0x00000080 /* 0: normal ctrl; 1: SABRE */
56#define MID_CON_SUNI 0x00000040 /* 0: UTOPIA; 1: SUNI */
57#define MID_CON_V6 0x00000020 /* 0: non-pipel UTOPIA (required iff
58 !CON_SUNI; 1: UTOPIA */
59#define DAUGTHER_ID 0x0000001f /* daugther board id */
60
61/*
62 * Interrupt Status Acknowledge, Interrupt Status & Interrupt Enable
63 */
64
65#define MID_ISA 0x01 /* Interrupt Status Acknowledge */
66#define MID_IS 0x02 /* Interrupt Status */
67#define MID_IE 0x03 /* Interrupt Enable */
68
69#define MID_TX_COMPLETE_7 0x00010000 /* channel N completed a PDU */
70#define MID_TX_COMPLETE_6 0x00008000 /* transmission */
71#define MID_TX_COMPLETE_5 0x00004000
72#define MID_TX_COMPLETE_4 0x00002000
73#define MID_TX_COMPLETE_3 0x00001000
74#define MID_TX_COMPLETE_2 0x00000800
75#define MID_TX_COMPLETE_1 0x00000400
76#define MID_TX_COMPLETE_0 0x00000200
77#define MID_TX_COMPLETE 0x0001fe00 /* any TX */
78#define MID_TX_DMA_OVFL 0x00000100 /* DMA to adapter overflow */
79#define MID_TX_IDENT_MISM 0x00000080 /* TX: ident mismatch => halted */
80#define MID_DMA_LERR_ACK 0x00000040 /* LERR - SBus ? */
81#define MID_DMA_ERR_ACK 0x00000020 /* DMA error */
82#define MID_RX_DMA_COMPLETE 0x00000010 /* DMA to host done */
83#define MID_TX_DMA_COMPLETE 0x00000008 /* DMA from host done */
84#define MID_SERVICE 0x00000004 /* something in service list */
85#define MID_SUNI_INT 0x00000002 /* interrupt from SUNI */
86#define MID_STAT_OVFL 0x00000001 /* statistics overflow */
87
88/*
89 * Master Control/Status
90 */
91
92#define MID_MC_S 0x04
93
94#define MID_INT_SELECT 0x000001C0 /* Interrupt level (000: off) */
95#define MID_INT_SEL_SHIFT 6
96#define MID_TX_LOCK_MODE 0x00000020 /* 0: streaming; 1: TX ovfl->lock */
97#define MID_DMA_ENABLE 0x00000010 /* R: 0: disable; 1: enable
98 W: 0: no change; 1: enable */
99#define MID_TX_ENABLE 0x00000008 /* R: 0: TX disabled; 1: enabled
100 W: 0: no change; 1: enable */
101#define MID_RX_ENABLE 0x00000004 /* like TX */
102#define MID_WAIT_1MS 0x00000002 /* R: 0: timer not running; 1: running
103 W: 0: no change; 1: no interrupts
104 for 1 ms */
105#define MID_WAIT_500US 0x00000001 /* like WAIT_1MS, but 0.5 ms */
106
107/*
108 * Statistics
109 *
110 * Cleared when reading.
111 */
112
113#define MID_STAT 0x05
114
115#define MID_VCI_TRASH 0xFFFF0000 /* trashed cells because of VCI mode */
116#define MID_VCI_TRASH_SHIFT 16
117#define MID_OVFL_TRASH 0x0000FFFF /* trashed cells because of overflow */
118
119/*
120 * Address registers
121 */
122
123#define MID_SERV_WRITE 0x06 /* free pos in service area (R, 10 bits) */
124#define MID_DMA_ADDR 0x07 /* virtual DMA address (R, 32 bits) */
125#define MID_DMA_WR_RX 0x08 /* (RW, 9 bits) */
126#define MID_DMA_RD_RX 0x09
127#define MID_DMA_WR_TX 0x0A
128#define MID_DMA_RD_TX 0x0B
129
130/*
131 * Transmit Place Registers (0x10+4*channel)
132 */
133
134#define MID_TX_PLACE(c) (0x10+4*(c))
135
136#define MID_SIZE 0x00003800 /* size, N*256 x 32 bit */
137#define MID_SIZE_SHIFT 11
138#define MID_LOCATION 0x000007FF /* location in adapter memory (word) */
139
140#define MID_LOC_SKIP 8 /* 8 bits of location are always zero
141 (applies to all uses of location) */
142
143/*
144 * Transmit ReadPtr Registers (0x11+4*channel)
145 */
146
147#define MID_TX_RDPTR(c) (0x11+4*(c))
148
149#define MID_READ_PTR 0x00007FFF /* next word for PHY */
150
151/*
152 * Transmit DescrStart Registers (0x12+4*channel)
153 */
154
155#define MID_TX_DESCRSTART(c) (0x12+4*(c))
156
157#define MID_DESCR_START 0x00007FFF /* seg buffer being DMAed */
158
159#define ENI155_MAGIC 0xa54b872d
160
161struct midway_eprom {
162 unsigned char mac[MAC_LEN],inv_mac[MAC_LEN];
163 unsigned char pad[36];
164 u32 serial,inv_serial;
165 u32 magic,inv_magic;
166};
167
168
169/*
170 * VCI table entry
171 */
172
173#define MID_VCI_IN_SERVICE 0x00000001 /* set if VCI is currently in
174 service list */
175#define MID_VCI_SIZE 0x00038000 /* reassembly buffer size,
176 2*<size> kB */
177#define MID_VCI_SIZE_SHIFT 15
178#define MID_VCI_LOCATION 0x1ffc0000 /* buffer location */
179#define MID_VCI_LOCATION_SHIFT 18
180#define MID_VCI_PTI_MODE 0x20000000 /* 0: trash, 1: preserve */
181#define MID_VCI_MODE 0xc0000000
182#define MID_VCI_MODE_SHIFT 30
183#define MID_VCI_READ 0x00007fff
184#define MID_VCI_READ_SHIFT 0
185#define MID_VCI_DESCR 0x7fff0000
186#define MID_VCI_DESCR_SHIFT 16
187#define MID_VCI_COUNT 0x000007ff
188#define MID_VCI_COUNT_SHIFT 0
189#define MID_VCI_STATE 0x0000c000
190#define MID_VCI_STATE_SHIFT 14
191#define MID_VCI_WRITE 0x7fff0000
192#define MID_VCI_WRITE_SHIFT 16
193
194#define MID_MODE_TRASH 0
195#define MID_MODE_RAW 1
196#define MID_MODE_AAL5 2
197
198/*
199 * Reassembly buffer descriptor
200 */
201
202#define MID_RED_COUNT 0x000007ff
203#define MID_RED_CRC_ERR 0x00000800
204#define MID_RED_T 0x00001000
205#define MID_RED_CE 0x00010000
206#define MID_RED_CLP 0x01000000
207#define MID_RED_IDEN 0xfe000000
208#define MID_RED_SHIFT 25
209
210#define MID_RED_RX_ID 0x1b /* constant identifier */
211
212/*
213 * Segmentation buffer descriptor
214 */
215
216#define MID_SEG_COUNT MID_RED_COUNT
217#define MID_SEG_RATE 0x01f80000
218#define MID_SEG_RATE_SHIFT 19
219#define MID_SEG_PR 0x06000000
220#define MID_SEG_PR_SHIFT 25
221#define MID_SEG_AAL5 0x08000000
222#define MID_SEG_ID 0xf0000000
223#define MID_SEG_ID_SHIFT 28
224#define MID_SEG_MAX_RATE 63
225
226#define MID_SEG_CLP 0x00000001
227#define MID_SEG_PTI 0x0000000e
228#define MID_SEG_PTI_SHIFT 1
229#define MID_SEG_VCI 0x00003ff0
230#define MID_SEG_VCI_SHIFT 4
231
232#define MID_SEG_TX_ID 0xb /* constant identifier */
233
234/*
235 * DMA entry
236 */
237
238#define MID_DMA_COUNT 0xffff0000
239#define MID_DMA_COUNT_SHIFT 16
240#define MID_DMA_END 0x00000020
241#define MID_DMA_TYPE 0x0000000f
242
243#define MID_DT_JK 0x3
244#define MID_DT_WORD 0x0
245#define MID_DT_2W 0x7
246#define MID_DT_4W 0x4
247#define MID_DT_8W 0x5
248#define MID_DT_16W 0x6
249#define MID_DT_2WM 0xf
250#define MID_DT_4WM 0xc
251#define MID_DT_8WM 0xd
252#define MID_DT_16WM 0xe
253
254/* only for RX*/
255#define MID_DMA_VCI 0x0000ffc0
256#define MID_DMA_VCI_SHIFT 6
257
258/* only for TX */
259#define MID_DMA_CHAN 0x000001c0
260#define MID_DMA_CHAN_SHIFT 6
261
262#define MID_DT_BYTE 0x1
263#define MID_DT_HWORD 0x2
264
265#endif