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gerrit-public.fairphone.software / kernel / msm / 5185c7c20a4b88892f868ad8d92d1b640b1edba9 / . / drivers / net / saa9730.h
blob: a7e9d29a86a725ae67fdde869b1b9df2c6511e8e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
Ralf Baechle34454702005-11-14 00:19:44 +0000[diff] [blame]2 * Copyright (C) 2000, 2005 MIPS Technologies, Inc. All rights reserved.
3 * Authors: Carsten Langgaard <carstenl@mips.com>
4 * Maciej W. Rozycki <macro@mips.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]5 *
6 * ########################################################################
7 *
8 * This program is free software; you can distribute it and/or modify it
9 * under the terms of the GNU General Public License (Version 2) as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
20 *
21 * ########################################################################
22 *
23 * SAA9730 ethernet driver description.
24 *
25 */
26#ifndef _SAA9730_H
27#define _SAA9730_H
28
29
30/* Number of 6-byte entries in the CAM. */
31#define LAN_SAA9730_CAM_ENTRIES 10
32#define LAN_SAA9730_CAM_DWORDS ((LAN_SAA9730_CAM_ENTRIES*6)/4)
33
34/* TX and RX packet size: fixed to 2048 bytes, according to HW requirements. */
35#define LAN_SAA9730_PACKET_SIZE 2048
36
37/*
38 * Number of TX buffers = number of RX buffers = 2, which is fixed according
39 * to HW requirements.
40 */
41#define LAN_SAA9730_BUFFERS 2
42
43/* Number of RX packets per RX buffer. */
44#define LAN_SAA9730_RCV_Q_SIZE 15
45
46/* Number of TX packets per TX buffer. */
47#define LAN_SAA9730_TXM_Q_SIZE 15
48
49/*
50 * We get an interrupt for each LAN_SAA9730_DEFAULT_RCV_Q_INT_THRESHOLD
51 * packets received.
52 * If however we receive less than LAN_SAA9730_DEFAULT_RCV_Q_INT_THRESHOLD
53 * packets, the hardware can timeout after a certain time and still tell
54 * us packets have arrived.
55 * The timeout value in unit of 32 PCI clocks (33Mhz).
56 * The value 200 approximates 0.0002 seconds.
57 */
58#define LAN_SAA9730_RCV_Q_INT_THRESHOLD 1
59#define LAN_SAA9730_DEFAULT_TIME_OUT_CNT 10
60
61#define RXSF_NDIS 0
62#define RXSF_READY 2
63#define RXSF_HWDONE 3
64
65#define TXSF_EMPTY 0
66#define TXSF_READY 2
67#define TXSF_HWDONE 3
68
69#define LANEND_LITTLE 0
70#define LANEND_BIG_2143 1
71#define LANEND_BIG_4321 2
72
73#define LANMB_ANY 0
74#define LANMB_8 1
75#define LANMB_32 2
76#define LANMB_64 3
77
78#define MACCM_AUTOMATIC 0
79#define MACCM_10MB 1
80#define MACCM_MII 2
81
82/*
83 * PHY definitions for Basic registers of QS6612 (used on MIPS ATLAS board)
84 */
85#define PHY_CONTROL 0x0
86#define PHY_STATUS 0x1
87#define PHY_STATUS_LINK_UP 0x4
88#define PHY_CONTROL_RESET 0x8000
89#define PHY_CONTROL_AUTO_NEG 0x1000
90#define PHY_CONTROL_RESTART_AUTO_NEG 0x0200
91#define PHY_ADDRESS 0x0
92
93/* PK_COUNT register. */
94#define PK_COUNT_TX_A_SHF 24
95#define PK_COUNT_TX_A_MSK (0xff << PK_COUNT_TX_A_SHF)
96#define PK_COUNT_TX_B_SHF 16
97#define PK_COUNT_TX_B_MSK (0xff << PK_COUNT_TX_B_SHF)
98#define PK_COUNT_RX_A_SHF 8
99#define PK_COUNT_RX_A_MSK (0xff << PK_COUNT_RX_A_SHF)
100#define PK_COUNT_RX_B_SHF 0
101#define PK_COUNT_RX_B_MSK (0xff << PK_COUNT_RX_B_SHF)
102
103/* OK2USE register. */
104#define OK2USE_TX_A 0x8
105#define OK2USE_TX_B 0x4
106#define OK2USE_RX_A 0x2
107#define OK2USE_RX_B 0x1
108
109/* LAN DMA CONTROL register. */
110#define DMA_CTL_BLK_INT 0x80000000
111#define DMA_CTL_MAX_XFER_SHF 18
112#define DMA_CTL_MAX_XFER_MSK (0x3 << LAN_DMA_CTL_MAX_XFER_SHF)
113#define DMA_CTL_ENDIAN_SHF 16
114#define DMA_CTL_ENDIAN_MSK (0x3 << LAN_DMA_CTL_ENDIAN_SHF)
115#define DMA_CTL_RX_INT_COUNT_SHF 8
116#define DMA_CTL_RX_INT_COUNT_MSK (0xff << LAN_DMA_CTL_RX_INT_COUNT_SHF)
117#define DMA_CTL_EN_TX_DMA 0x00000080
118#define DMA_CTL_EN_RX_DMA 0x00000040
119#define DMA_CTL_RX_INT_BUFFUL_EN 0x00000020
120#define DMA_CTL_RX_INT_TO_EN 0x00000010
121#define DMA_CTL_RX_INT_EN 0x00000008
122#define DMA_CTL_TX_INT_EN 0x00000004
123#define DMA_CTL_MAC_TX_INT_EN 0x00000002
124#define DMA_CTL_MAC_RX_INT_EN 0x00000001
125
126/* DMA STATUS register. */
127#define DMA_STATUS_BAD_ADDR_SHF 16
128#define DMA_STATUS_BAD_ADDR_MSK (0xf << DMA_STATUS_BAD_ADDR_SHF)
129#define DMA_STATUS_RX_PKTS_RECEIVED_SHF 8
130#define DMA_STATUS_RX_PKTS_RECEIVED_MSK (0xff << DMA_STATUS_RX_PKTS_RECEIVED_SHF)
131#define DMA_STATUS_TX_EN_SYNC 0x00000080
132#define DMA_STATUS_RX_BUF_A_FUL 0x00000040
133#define DMA_STATUS_RX_BUF_B_FUL 0x00000020
134#define DMA_STATUS_RX_TO_INT 0x00000010
135#define DMA_STATUS_RX_INT 0x00000008
136#define DMA_STATUS_TX_INT 0x00000004
137#define DMA_STATUS_MAC_TX_INT 0x00000002
138#define DMA_STATUS_MAC_RX_INT 0x00000001
139
140/* DMA TEST/PANIC SWITHES register. */
141#define DMA_TEST_LOOPBACK 0x01000000
142#define DMA_TEST_SW_RESET 0x00000001
143
144/* MAC CONTROL register. */
145#define MAC_CONTROL_EN_MISS_ROLL 0x00002000
146#define MAC_CONTROL_MISS_ROLL 0x00000400
147#define MAC_CONTROL_LOOP10 0x00000080
148#define MAC_CONTROL_CONN_SHF 5
149#define MAC_CONTROL_CONN_MSK (0x3 << MAC_CONTROL_CONN_SHF)
150#define MAC_CONTROL_MAC_LOOP 0x00000010
151#define MAC_CONTROL_FULL_DUP 0x00000008
152#define MAC_CONTROL_RESET 0x00000004
153#define MAC_CONTROL_HALT_IMM 0x00000002
154#define MAC_CONTROL_HALT_REQ 0x00000001
155
156/* CAM CONTROL register. */
157#define CAM_CONTROL_COMP_EN 0x00000010
158#define CAM_CONTROL_NEG_CAM 0x00000008
159#define CAM_CONTROL_BROAD_ACC 0x00000004
160#define CAM_CONTROL_GROUP_ACC 0x00000002
161#define CAM_CONTROL_STATION_ACC 0x00000001
162
163/* TRANSMIT CONTROL register. */
164#define TX_CTL_EN_COMP 0x00004000
165#define TX_CTL_EN_TX_PAR 0x00002000
166#define TX_CTL_EN_LATE_COLL 0x00001000
167#define TX_CTL_EN_EX_COLL 0x00000800
168#define TX_CTL_EN_L_CARR 0x00000400
169#define TX_CTL_EN_EX_DEFER 0x00000200
170#define TX_CTL_EN_UNDER 0x00000100
171#define TX_CTL_MII10 0x00000080
172#define TX_CTL_SD_PAUSE 0x00000040
173#define TX_CTL_NO_EX_DEF0 0x00000020
174#define TX_CTL_F_BACK 0x00000010
175#define TX_CTL_NO_CRC 0x00000008
176#define TX_CTL_NO_PAD 0x00000004
177#define TX_CTL_TX_HALT 0x00000002
178#define TX_CTL_TX_EN 0x00000001
179
180/* TRANSMIT STATUS register. */
181#define TX_STATUS_SQ_ERR 0x00010000
182#define TX_STATUS_TX_HALTED 0x00008000
183#define TX_STATUS_COMP 0x00004000
184#define TX_STATUS_TX_PAR 0x00002000
185#define TX_STATUS_LATE_COLL 0x00001000
186#define TX_STATUS_TX10_STAT 0x00000800
187#define TX_STATUS_L_CARR 0x00000400
188#define TX_STATUS_EX_DEFER 0x00000200
189#define TX_STATUS_UNDER 0x00000100
190#define TX_STATUS_IN_TX 0x00000080
191#define TX_STATUS_PAUSED 0x00000040
192#define TX_STATUS_TX_DEFERRED 0x00000020
193#define TX_STATUS_EX_COLL 0x00000010
194#define TX_STATUS_TX_COLL_SHF 0
195#define TX_STATUS_TX_COLL_MSK (0xf << TX_STATUS_TX_COLL_SHF)
196
197/* RECEIVE CONTROL register. */
198#define RX_CTL_EN_GOOD 0x00004000
199#define RX_CTL_EN_RX_PAR 0x00002000
200#define RX_CTL_EN_LONG_ERR 0x00000800
201#define RX_CTL_EN_OVER 0x00000400
202#define RX_CTL_EN_CRC_ERR 0x00000200
203#define RX_CTL_EN_ALIGN 0x00000100
204#define RX_CTL_IGNORE_CRC 0x00000040
205#define RX_CTL_PASS_CTL 0x00000020
206#define RX_CTL_STRIP_CRC 0x00000010
207#define RX_CTL_SHORT_EN 0x00000008
208#define RX_CTL_LONG_EN 0x00000004
209#define RX_CTL_RX_HALT 0x00000002
210#define RX_CTL_RX_EN 0x00000001
211
212/* RECEIVE STATUS register. */
213#define RX_STATUS_RX_HALTED 0x00008000
214#define RX_STATUS_GOOD 0x00004000
215#define RX_STATUS_RX_PAR 0x00002000
216#define RX_STATUS_LONG_ERR 0x00000800
217#define RX_STATUS_OVERFLOW 0x00000400
218#define RX_STATUS_CRC_ERR 0x00000200
219#define RX_STATUS_ALIGN_ERR 0x00000100
220#define RX_STATUS_RX10_STAT 0x00000080
221#define RX_STATUS_INT_RX 0x00000040
222#define RX_STATUS_CTL_RECD 0x00000020
223
224/* MD_CA register. */
225#define MD_CA_PRE_SUP 0x00001000
226#define MD_CA_BUSY 0x00000800
227#define MD_CA_WR 0x00000400
228#define MD_CA_PHY_SHF 5
229#define MD_CA_PHY_MSK (0x1f << MD_CA_PHY_SHF)
230#define MD_CA_ADDR_SHF 0
231#define MD_CA_ADDR_MSK (0x1f << MD_CA_ADDR_SHF)
232
233/* Tx Status/Control. */
234#define TX_STAT_CTL_OWNER_SHF 30
235#define TX_STAT_CTL_OWNER_MSK (0x3 << TX_STAT_CTL_OWNER_SHF)
236#define TX_STAT_CTL_FRAME_SHF 27
237#define TX_STAT_CTL_FRAME_MSK (0x7 << TX_STAT_CTL_FRAME_SHF)
238#define TX_STAT_CTL_STATUS_SHF 11
239#define TX_STAT_CTL_STATUS_MSK (0x1ffff << TX_STAT_CTL_STATUS_SHF)
240#define TX_STAT_CTL_LENGTH_SHF 0
241#define TX_STAT_CTL_LENGTH_MSK (0x7ff << TX_STAT_CTL_LENGTH_SHF)
242
243#define TX_STAT_CTL_ERROR_MSK ((TX_STATUS_SQ_ERR | \
244 TX_STATUS_TX_HALTED | \
245 TX_STATUS_TX_PAR | \
246 TX_STATUS_LATE_COLL | \
247 TX_STATUS_L_CARR | \
248 TX_STATUS_EX_DEFER | \
249 TX_STATUS_UNDER | \
250 TX_STATUS_PAUSED | \
251 TX_STATUS_TX_DEFERRED | \
252 TX_STATUS_EX_COLL | \
253 TX_STATUS_TX_COLL_MSK) \
254 << TX_STAT_CTL_STATUS_SHF)
255#define TX_STAT_CTL_INT_AFTER_TX 0x4
256
257/* Rx Status/Control. */
258#define RX_STAT_CTL_OWNER_SHF 30
259#define RX_STAT_CTL_OWNER_MSK (0x3 << RX_STAT_CTL_OWNER_SHF)
260#define RX_STAT_CTL_STATUS_SHF 11
261#define RX_STAT_CTL_STATUS_MSK (0xffff << RX_STAT_CTL_STATUS_SHF)
262#define RX_STAT_CTL_LENGTH_SHF 0
263#define RX_STAT_CTL_LENGTH_MSK (0x7ff << RX_STAT_CTL_LENGTH_SHF)
264
265
266
267/* The SAA9730 (LAN) controller register map, as seen via the PCI-bus. */
268#define SAA9730_LAN_REGS_ADDR 0x20400
Ralf Baechle34454702005-11-14 00:19:44 +0000[diff] [blame]269#define SAA9730_LAN_REGS_SIZE 0x00400
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]270
271struct lan_saa9730_regmap {
272 volatile unsigned int TxBuffA; /* 0x20400 */
273 volatile unsigned int TxBuffB; /* 0x20404 */
274 volatile unsigned int RxBuffA; /* 0x20408 */
275 volatile unsigned int RxBuffB; /* 0x2040c */
276 volatile unsigned int PacketCount; /* 0x20410 */
277 volatile unsigned int Ok2Use; /* 0x20414 */
278 volatile unsigned int LanDmaCtl; /* 0x20418 */
279 volatile unsigned int Timeout; /* 0x2041c */
280 volatile unsigned int DmaStatus; /* 0x20420 */
281 volatile unsigned int DmaTest; /* 0x20424 */
282 volatile unsigned char filler20428[0x20430 - 0x20428];
283 volatile unsigned int PauseCount; /* 0x20430 */
284 volatile unsigned int RemotePauseCount; /* 0x20434 */
285 volatile unsigned char filler20438[0x20440 - 0x20438];
286 volatile unsigned int MacCtl; /* 0x20440 */
287 volatile unsigned int CamCtl; /* 0x20444 */
288 volatile unsigned int TxCtl; /* 0x20448 */
289 volatile unsigned int TxStatus; /* 0x2044c */
290 volatile unsigned int RxCtl; /* 0x20450 */
291 volatile unsigned int RxStatus; /* 0x20454 */
292 volatile unsigned int StationMgmtData; /* 0x20458 */
293 volatile unsigned int StationMgmtCtl; /* 0x2045c */
294 volatile unsigned int CamAddress; /* 0x20460 */
295 volatile unsigned int CamData; /* 0x20464 */
296 volatile unsigned int CamEnable; /* 0x20468 */
297 volatile unsigned char filler2046c[0x20500 - 0x2046c];
298 volatile unsigned int DebugPCIMasterAddr; /* 0x20500 */
299 volatile unsigned int DebugLanTxStateMachine; /* 0x20504 */
300 volatile unsigned int DebugLanRxStateMachine; /* 0x20508 */
301 volatile unsigned int DebugLanTxFifoPointers; /* 0x2050c */
302 volatile unsigned int DebugLanRxFifoPointers; /* 0x20510 */
303 volatile unsigned int DebugLanCtlStateMachine; /* 0x20514 */
304};
305typedef volatile struct lan_saa9730_regmap t_lan_saa9730_regmap;
306
307
308/* EVM interrupt control registers. */
309#define EVM_LAN_INT 0x00010000
310#define EVM_MASTER_EN 0x00000001
311
312/* The SAA9730 (EVM) controller register map, as seen via the PCI-bus. */
313#define SAA9730_EVM_REGS_ADDR 0x02000
Ralf Baechle34454702005-11-14 00:19:44 +0000[diff] [blame]314#define SAA9730_EVM_REGS_SIZE 0x00400
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]315
316struct evm_saa9730_regmap {
317 volatile unsigned int InterruptStatus1; /* 0x2000 */
318 volatile unsigned int InterruptEnable1; /* 0x2004 */
319 volatile unsigned int InterruptMonitor1; /* 0x2008 */
320 volatile unsigned int Counter; /* 0x200c */
321 volatile unsigned int CounterThreshold; /* 0x2010 */
322 volatile unsigned int CounterControl; /* 0x2014 */
323 volatile unsigned int GpioControl1; /* 0x2018 */
324 volatile unsigned int InterruptStatus2; /* 0x201c */
325 volatile unsigned int InterruptEnable2; /* 0x2020 */
326 volatile unsigned int InterruptMonitor2; /* 0x2024 */
327 volatile unsigned int GpioControl2; /* 0x2028 */
328 volatile unsigned int InterruptBlock1; /* 0x202c */
329 volatile unsigned int InterruptBlock2; /* 0x2030 */
330};
331typedef volatile struct evm_saa9730_regmap t_evm_saa9730_regmap;
332
333
334struct lan_saa9730_private {
Ralf Baechle34454702005-11-14 00:19:44 +0000[diff] [blame]335 /*
336 * Rx/Tx packet buffers.
337 * The Rx and Tx packets must be PACKET_SIZE aligned.
338 */
339 void *buffer_start;
340 unsigned int buffer_size;
341
342 /*
343 * DMA address of beginning of this object, returned
344 * by pci_alloc_consistent().
345 */
346 dma_addr_t dma_addr;
347
348 /* Pointer to the associated pci device structure */
349 struct pci_dev *pci_dev;
350
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]351 /* Pointer for the SAA9730 LAN controller register set. */
352 t_lan_saa9730_regmap *lan_saa9730_regs;
353
354 /* Pointer to the SAA9730 EVM register. */
355 t_evm_saa9730_regmap *evm_saa9730_regs;
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]357 /* Rcv buffer Index. */
358 unsigned char NextRcvPacketIndex;
Ralf Baechle34454702005-11-14 00:19:44 +0000[diff] [blame]359 /* Next buffer index. */
360 unsigned char NextRcvBufferIndex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]361
362 /* Index of next packet to use in that buffer. */
363 unsigned char NextTxmPacketIndex;
364 /* Next buffer index. */
365 unsigned char NextTxmBufferIndex;
366
367 /* Index of first pending packet ready to send. */
368 unsigned char PendingTxmPacketIndex;
369 /* Pending buffer index. */
370 unsigned char PendingTxmBufferIndex;
371
372 unsigned char DmaRcvPackets;
373 unsigned char DmaTxmPackets;
374
Ralf Baechle34454702005-11-14 00:19:44 +0000[diff] [blame]375 void *TxmBuffer[LAN_SAA9730_BUFFERS][LAN_SAA9730_TXM_Q_SIZE];
376 void *RcvBuffer[LAN_SAA9730_BUFFERS][LAN_SAA9730_RCV_Q_SIZE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]377 unsigned int TxBufferFree[LAN_SAA9730_BUFFERS];
378
379 unsigned char PhysicalAddress[LAN_SAA9730_CAM_ENTRIES][6];
380
381 struct net_device_stats stats;
382 spinlock_t lock;
383};
384
385#endif /* _SAA9730_H */