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1/*
2 * Initio A100 device driver for Linux.
3 *
4 * Copyright (c) 1994-1998 Initio Corporation
5 * All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; see the file COPYING. If not, write to
19 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 *
21 * --------------------------------------------------------------------------
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the above copyright
27 * notice, this list of conditions, and the following disclaimer,
28 * without modification, immediately at the beginning of the file.
29 * 2. Redistributions in binary form must reproduce the above copyright
30 * notice, this list of conditions and the following disclaimer in the
31 * documentation and/or other materials provided with the distribution.
32 * 3. The name of the author may not be used to endorse or promote products
33 * derived from this software without specific prior written permission.
34 *
35 * Where this Software is combined with software released under the terms of
36 * the GNU General Public License ("GPL") and the terms of the GPL would require the
37 * combined work to also be released under the terms of the GPL, the terms
38 * and conditions of this License will apply in addition to those of the
39 * GPL with the exception of any terms or conditions of this License that
40 * conflict with, or are expressly prohibited by, the GPL.
41 *
42 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
46 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 */
54
55/*
56 * Revision History:
57 * 06/18/98 HL, Initial production Version 1.02
58 * 12/19/98 bv, Use spinlocks for 2.1.95 and up
59 * 06/25/02 Doug Ledford <dledford@redhat.com>
60 * - This and the i60uscsi.h file are almost identical,
61 * merged them into a single header used by both .c files.
62 */
63
64#define inia100_REVID "Initio INI-A100U2W SCSI device driver; Revision: 1.02d"
65
66#define ULONG unsigned long
67#define USHORT unsigned short
68#define UCHAR unsigned char
69#define BYTE unsigned char
70#define WORD unsigned short
71#define DWORD unsigned long
72#define UBYTE unsigned char
73#define UWORD unsigned short
74#define UDWORD unsigned long
75#define U32 u32
76
77#if 1
78#define ORC_MAXQUEUE 245
79#define ORC_MAXTAGS 64
80#else
81#define ORC_MAXQUEUE 25
82#define ORC_MAXTAGS 8
83#endif
84
85#define TOTAL_SG_ENTRY 32
86#define MAX_TARGETS 16
87#define IMAX_CDB 15
88#define SENSE_SIZE 14
89
90/************************************************************************/
91/* Scatter-Gather Element Structure */
92/************************************************************************/
93typedef struct ORC_SG_Struc {
94 U32 SG_Ptr; /* Data Pointer */
95 U32 SG_Len; /* Data Length */
96} ORC_SG;
97
98/* SCSI related definition */
99#define DISC_NOT_ALLOW 0x80 /* Disconnect is not allowed */
100#define DISC_ALLOW 0xC0 /* Disconnect is allowed */
101
102
103#define ORC_OFFSET_SCB 16
104#define ORC_MAX_SCBS 250
105#define MAX_CHANNELS 2
106#define MAX_ESCB_ELE 64
107#define TCF_DRV_255_63 0x0400
108
109/********************************************************/
110/* Orchid Host Command Set */
111/********************************************************/
112#define ORC_CMD_NOP 0x00 /* Host command - NOP */
113#define ORC_CMD_VERSION 0x01 /* Host command - Get F/W version */
114#define ORC_CMD_ECHO 0x02 /* Host command - ECHO */
115#define ORC_CMD_SET_NVM 0x03 /* Host command - Set NVRAM */
116#define ORC_CMD_GET_NVM 0x04 /* Host command - Get NVRAM */
117#define ORC_CMD_GET_BUS_STATUS 0x05 /* Host command - Get SCSI bus status */
118#define ORC_CMD_ABORT_SCB 0x06 /* Host command - Abort SCB */
119#define ORC_CMD_ISSUE_SCB 0x07 /* Host command - Issue SCB */
120
121/********************************************************/
122/* Orchid Register Set */
123/********************************************************/
124#define ORC_GINTS 0xA0 /* Global Interrupt Status */
125#define QINT 0x04 /* Reply Queue Interrupt */
126#define ORC_GIMSK 0xA1 /* Global Interrupt MASK */
127#define MQINT 0x04 /* Mask Reply Queue Interrupt */
128#define ORC_GCFG 0xA2 /* Global Configure */
129#define EEPRG 0x01 /* Enable EEPROM programming */
130#define ORC_GSTAT 0xA3 /* Global status */
131#define WIDEBUS 0x10 /* Wide SCSI Devices connected */
132#define ORC_HDATA 0xA4 /* Host Data */
133#define ORC_HCTRL 0xA5 /* Host Control */
134#define SCSIRST 0x80 /* SCSI bus reset */
135#define HDO 0x40 /* Host data out */
136#define HOSTSTOP 0x02 /* Host stop RISC engine */
137#define DEVRST 0x01 /* Device reset */
138#define ORC_HSTUS 0xA6 /* Host Status */
139#define HDI 0x02 /* Host data in */
140#define RREADY 0x01 /* RISC engine is ready to receive */
141#define ORC_NVRAM 0xA7 /* Nvram port address */
142#define SE2CS 0x008
143#define SE2CLK 0x004
144#define SE2DO 0x002
145#define SE2DI 0x001
146#define ORC_PQUEUE 0xA8 /* Posting queue FIFO */
147#define ORC_PQCNT 0xA9 /* Posting queue FIFO Cnt */
148#define ORC_RQUEUE 0xAA /* Reply queue FIFO */
149#define ORC_RQUEUECNT 0xAB /* Reply queue FIFO Cnt */
150#define ORC_FWBASEADR 0xAC /* Firmware base address */
151
152#define ORC_EBIOSADR0 0xB0 /* External Bios address */
153#define ORC_EBIOSADR1 0xB1 /* External Bios address */
154#define ORC_EBIOSADR2 0xB2 /* External Bios address */
155#define ORC_EBIOSDATA 0xB3 /* External Bios address */
156
157#define ORC_SCBSIZE 0xB7 /* SCB size register */
158#define ORC_SCBBASE0 0xB8 /* SCB base address 0 */
159#define ORC_SCBBASE1 0xBC /* SCB base address 1 */
160
161#define ORC_RISCCTL 0xE0 /* RISC Control */
162#define PRGMRST 0x002
163#define DOWNLOAD 0x001
164#define ORC_PRGMCTR0 0xE2 /* RISC program counter */
165#define ORC_PRGMCTR1 0xE3 /* RISC program counter */
166#define ORC_RISCRAM 0xEC /* RISC RAM data port 4 bytes */
167
168typedef struct orc_extended_scb { /* Extended SCB */
169 ORC_SG ESCB_SGList[TOTAL_SG_ENTRY]; /*0 Start of SG list */
170 struct scsi_cmnd *SCB_Srb; /*50 SRB Pointer */
171} ESCB;
172
173/***********************************************************************
174 SCSI Control Block
175************************************************************************/
176typedef struct orc_scb { /* Scsi_Ctrl_Blk */
177 UBYTE SCB_Opcode; /*00 SCB command code&residual */
178 UBYTE SCB_Flags; /*01 SCB Flags */
179 UBYTE SCB_Target; /*02 Target Id */
180 UBYTE SCB_Lun; /*03 Lun */
181 U32 SCB_Reserved0; /*04 Reserved for ORCHID must 0 */
182 U32 SCB_XferLen; /*08 Data Transfer Length */
183 U32 SCB_Reserved1; /*0C Reserved for ORCHID must 0 */
184 U32 SCB_SGLen; /*10 SG list # * 8 */
185 U32 SCB_SGPAddr; /*14 SG List Buf physical Addr */
186 U32 SCB_SGPAddrHigh; /*18 SG Buffer high physical Addr */
187 UBYTE SCB_HaStat; /*1C Host Status */
188 UBYTE SCB_TaStat; /*1D Target Status */
189 UBYTE SCB_Status; /*1E SCB status */
190 UBYTE SCB_Link; /*1F Link pointer, default 0xFF */
191 UBYTE SCB_SenseLen; /*20 Sense Allocation Length */
192 UBYTE SCB_CDBLen; /*21 CDB Length */
193 UBYTE SCB_Ident; /*22 Identify */
194 UBYTE SCB_TagMsg; /*23 Tag Message */
195 UBYTE SCB_CDB[IMAX_CDB]; /*24 SCSI CDBs */
196 UBYTE SCB_ScbIdx; /*3C Index for this ORCSCB */
197 U32 SCB_SensePAddr; /*34 Sense Buffer physical Addr */
198
199 ESCB *SCB_EScb; /*38 Extended SCB Pointer */
200#ifndef ALPHA
201 UBYTE SCB_Reserved2[4]; /*3E Reserved for Driver use */
202#endif
203} ORC_SCB;
204
205/* Opcodes of ORCSCB_Opcode */
206#define ORC_EXECSCSI 0x00 /* SCSI initiator command with residual */
207#define ORC_BUSDEVRST 0x01 /* SCSI Bus Device Reset */
208
209/* Status of ORCSCB_Status */
210#define ORCSCB_COMPLETE 0x00 /* SCB request completed */
211#define ORCSCB_POST 0x01 /* SCB is posted by the HOST */
212
213/* Bit Definition for ORCSCB_Flags */
214#define SCF_DISINT 0x01 /* Disable HOST interrupt */
215#define SCF_DIR 0x18 /* Direction bits */
216#define SCF_NO_DCHK 0x00 /* Direction determined by SCSI */
217#define SCF_DIN 0x08 /* From Target to Initiator */
218#define SCF_DOUT 0x10 /* From Initiator to Target */
219#define SCF_NO_XF 0x18 /* No data transfer */
220#define SCF_POLL 0x40
221
222/* Error Codes for ORCSCB_HaStat */
223#define HOST_SEL_TOUT 0x11
224#define HOST_DO_DU 0x12
225#define HOST_BUS_FREE 0x13
226#define HOST_BAD_PHAS 0x14
227#define HOST_INV_CMD 0x16
228#define HOST_SCSI_RST 0x1B
229#define HOST_DEV_RST 0x1C
230
231
232/* Error Codes for ORCSCB_TaStat */
233#define TARGET_CHK_COND 0x02
234#define TARGET_BUSY 0x08
235#define TARGET_TAG_FULL 0x28
236
237
238/***********************************************************************
239 Target Device Control Structure
240**********************************************************************/
241
242typedef struct ORC_Tar_Ctrl_Struc {
243 UBYTE TCS_DrvDASD; /* 6 */
244 UBYTE TCS_DrvSCSI; /* 7 */
245 UBYTE TCS_DrvHead; /* 8 */
246 UWORD TCS_DrvFlags; /* 4 */
247 UBYTE TCS_DrvSector; /* 7 */
248} ORC_TCS;
249
250/* Bit Definition for TCF_DrvFlags */
251#define TCS_DF_NODASD_SUPT 0x20 /* Suppress OS/2 DASD Mgr support */
252#define TCS_DF_NOSCSI_SUPT 0x40 /* Suppress OS/2 SCSI Mgr support */
253
254
255/***********************************************************************
256 Host Adapter Control Structure
257************************************************************************/
258typedef struct ORC_Ha_Ctrl_Struc {
259 USHORT HCS_Base; /* 00 */
260 UBYTE HCS_Index; /* 02 */
261 UBYTE HCS_Intr; /* 04 */
262 UBYTE HCS_SCSI_ID; /* 06 H/A SCSI ID */
263 UBYTE HCS_BIOS; /* 07 BIOS configuration */
264
265 UBYTE HCS_Flags; /* 0B */
266 UBYTE HCS_HAConfig1; /* 1B SCSI0MAXTags */
267 UBYTE HCS_MaxTar; /* 1B SCSI0MAXTags */
268
269 USHORT HCS_Units; /* Number of units this adapter */
270 USHORT HCS_AFlags; /* Adapter info. defined flags */
271 ULONG HCS_Timeout; /* Adapter timeout value */
272 ORC_SCB *HCS_virScbArray; /* 28 Virtual Pointer to SCB array */
273 dma_addr_t HCS_physScbArray; /* Scb Physical address */
274 ESCB *HCS_virEscbArray; /* Virtual pointer to ESCB Scatter list */
275 dma_addr_t HCS_physEscbArray; /* scatter list Physical address */
276 UBYTE TargetFlag[16]; /* 30 target configuration, TCF_EN_TAG */
277 UBYTE MaximumTags[16]; /* 40 ORC_MAX_SCBS */
278 UBYTE ActiveTags[16][16]; /* 50 */
279 ORC_TCS HCS_Tcs[16]; /* 28 */
280 U32 BitAllocFlag[MAX_CHANNELS][8]; /* Max STB is 256, So 256/32 */
281 spinlock_t BitAllocFlagLock;
282 struct pci_dev *pdev;
283} ORC_HCS;
284
285/* Bit Definition for HCS_Flags */
286
287#define HCF_SCSI_RESET 0x01 /* SCSI BUS RESET */
288#define HCF_PARITY 0x02 /* parity card */
289#define HCF_LVDS 0x10 /* parity card */
290
291/* Bit Definition for TargetFlag */
292
293#define TCF_EN_255 0x08
294#define TCF_EN_TAG 0x10
295#define TCF_BUSY 0x20
296#define TCF_DISCONNECT 0x40
297#define TCF_SPIN_UP 0x80
298
299/* Bit Definition for HCS_AFlags */
300#define HCS_AF_IGNORE 0x01 /* Adapter ignore */
301#define HCS_AF_DISABLE_RESET 0x10 /* Adapter disable reset */
302#define HCS_AF_DISABLE_ADPT 0x80 /* Adapter disable */
303
304typedef struct _NVRAM {
305/*----------header ---------------*/
306 UCHAR SubVendorID0; /* 00 - Sub Vendor ID */
307 UCHAR SubVendorID1; /* 00 - Sub Vendor ID */
308 UCHAR SubSysID0; /* 02 - Sub System ID */
309 UCHAR SubSysID1; /* 02 - Sub System ID */
310 UCHAR SubClass; /* 04 - Sub Class */
311 UCHAR VendorID0; /* 05 - Vendor ID */
312 UCHAR VendorID1; /* 05 - Vendor ID */
313 UCHAR DeviceID0; /* 07 - Device ID */
314 UCHAR DeviceID1; /* 07 - Device ID */
315 UCHAR Reserved0[2]; /* 09 - Reserved */
316 UCHAR Revision; /* 0B - Revision of data structure */
317 /* ----Host Adapter Structure ---- */
318 UCHAR NumOfCh; /* 0C - Number of SCSI channel */
319 UCHAR BIOSConfig1; /* 0D - BIOS configuration 1 */
320 UCHAR BIOSConfig2; /* 0E - BIOS boot channel&target ID */
321 UCHAR BIOSConfig3; /* 0F - BIOS configuration 3 */
322 /* ----SCSI channel Structure ---- */
323 /* from "CTRL-I SCSI Host Adapter SetUp menu " */
324 UCHAR SCSI0Id; /* 10 - Channel 0 SCSI ID */
325 UCHAR SCSI0Config; /* 11 - Channel 0 SCSI configuration */
326 UCHAR SCSI0MaxTags; /* 12 - Channel 0 Maximum tags */
327 UCHAR SCSI0ResetTime; /* 13 - Channel 0 Reset recovering time */
328 UCHAR ReservedforChannel0[2]; /* 14 - Reserved */
329
330 /* ----SCSI target Structure ---- */
331 /* from "CTRL-I SCSI device SetUp menu " */
332 UCHAR Target00Config; /* 16 - Channel 0 Target 0 config */
333 UCHAR Target01Config; /* 17 - Channel 0 Target 1 config */
334 UCHAR Target02Config; /* 18 - Channel 0 Target 2 config */
335 UCHAR Target03Config; /* 19 - Channel 0 Target 3 config */
336 UCHAR Target04Config; /* 1A - Channel 0 Target 4 config */
337 UCHAR Target05Config; /* 1B - Channel 0 Target 5 config */
338 UCHAR Target06Config; /* 1C - Channel 0 Target 6 config */
339 UCHAR Target07Config; /* 1D - Channel 0 Target 7 config */
340 UCHAR Target08Config; /* 1E - Channel 0 Target 8 config */
341 UCHAR Target09Config; /* 1F - Channel 0 Target 9 config */
342 UCHAR Target0AConfig; /* 20 - Channel 0 Target A config */
343 UCHAR Target0BConfig; /* 21 - Channel 0 Target B config */
344 UCHAR Target0CConfig; /* 22 - Channel 0 Target C config */
345 UCHAR Target0DConfig; /* 23 - Channel 0 Target D config */
346 UCHAR Target0EConfig; /* 24 - Channel 0 Target E config */
347 UCHAR Target0FConfig; /* 25 - Channel 0 Target F config */
348
349 UCHAR SCSI1Id; /* 26 - Channel 1 SCSI ID */
350 UCHAR SCSI1Config; /* 27 - Channel 1 SCSI configuration */
351 UCHAR SCSI1MaxTags; /* 28 - Channel 1 Maximum tags */
352 UCHAR SCSI1ResetTime; /* 29 - Channel 1 Reset recovering time */
353 UCHAR ReservedforChannel1[2]; /* 2A - Reserved */
354
355 /* ----SCSI target Structure ---- */
356 /* from "CTRL-I SCSI device SetUp menu " */
357 UCHAR Target10Config; /* 2C - Channel 1 Target 0 config */
358 UCHAR Target11Config; /* 2D - Channel 1 Target 1 config */
359 UCHAR Target12Config; /* 2E - Channel 1 Target 2 config */
360 UCHAR Target13Config; /* 2F - Channel 1 Target 3 config */
361 UCHAR Target14Config; /* 30 - Channel 1 Target 4 config */
362 UCHAR Target15Config; /* 31 - Channel 1 Target 5 config */
363 UCHAR Target16Config; /* 32 - Channel 1 Target 6 config */
364 UCHAR Target17Config; /* 33 - Channel 1 Target 7 config */
365 UCHAR Target18Config; /* 34 - Channel 1 Target 8 config */
366 UCHAR Target19Config; /* 35 - Channel 1 Target 9 config */
367 UCHAR Target1AConfig; /* 36 - Channel 1 Target A config */
368 UCHAR Target1BConfig; /* 37 - Channel 1 Target B config */
369 UCHAR Target1CConfig; /* 38 - Channel 1 Target C config */
370 UCHAR Target1DConfig; /* 39 - Channel 1 Target D config */
371 UCHAR Target1EConfig; /* 3A - Channel 1 Target E config */
372 UCHAR Target1FConfig; /* 3B - Channel 1 Target F config */
373 UCHAR reserved[3]; /* 3C - Reserved */
374 /* ---------- CheckSum ---------- */
375 UCHAR CheckSum; /* 3F - Checksum of NVRam */
376} NVRAM, *PNVRAM;
377
378/* Bios Configuration for nvram->BIOSConfig1 */
379#define NBC_BIOSENABLE 0x01 /* BIOS enable */
380#define NBC_CDROM 0x02 /* Support bootable CDROM */
381#define NBC_REMOVABLE 0x04 /* Support removable drive */
382
383/* Bios Configuration for nvram->BIOSConfig2 */
384#define NBB_TARGET_MASK 0x0F /* Boot SCSI target ID number */
385#define NBB_CHANL_MASK 0xF0 /* Boot SCSI channel number */
386
387/* Bit definition for nvram->SCSIConfig */
388#define NCC_BUSRESET 0x01 /* Reset SCSI bus at power up */
389#define NCC_PARITYCHK 0x02 /* SCSI parity enable */
390#define NCC_LVDS 0x10 /* Enable LVDS */
391#define NCC_ACTTERM1 0x20 /* Enable active terminator 1 */
392#define NCC_ACTTERM2 0x40 /* Enable active terminator 2 */
393#define NCC_AUTOTERM 0x80 /* Enable auto termination */
394
395/* Bit definition for nvram->TargetxConfig */
396#define NTC_PERIOD 0x07 /* Maximum Sync. Speed */
397#define NTC_1GIGA 0x08 /* 255 head / 63 sectors (64/32) */
398#define NTC_NO_SYNC 0x10 /* NO SYNC. NEGO */
399#define NTC_NO_WIDESYNC 0x20 /* NO WIDE SYNC. NEGO */
400#define NTC_DISC_ENABLE 0x40 /* Enable SCSI disconnect */
401#define NTC_SPINUP 0x80 /* Start disk drive */
402
403/* Default NVRam values */
404#define NBC_DEFAULT (NBC_ENABLE)
405#define NCC_DEFAULT (NCC_BUSRESET | NCC_AUTOTERM | NCC_PARITYCHK)
406#define NCC_MAX_TAGS 0x20 /* Maximum tags per target */
407#define NCC_RESET_TIME 0x0A /* SCSI RESET recovering time */
408#define NTC_DEFAULT (NTC_1GIGA | NTC_NO_WIDESYNC | NTC_DISC_ENABLE)
409
410#define ORC_RD(x,y) (UCHAR)(inb( (int)((ULONG)((ULONG)x+(UCHAR)y)) ))
411#define ORC_RDWORD(x,y) (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) ))
412#define ORC_RDLONG(x,y) (long)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) ))
413
414#define ORC_WR( adr,data) outb( (UCHAR)(data), (int)(adr))
415#define ORC_WRSHORT(adr,data) outw( (UWORD)(data), (int)(adr))
416#define ORC_WRLONG( adr,data) outl( (ULONG)(data), (int)(adr))
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