fcef3758142d6a2ce48e5bb947d2685702fdbc8b
[dragonfly.git] / sys / dev / disk / aic7xxx / aic7770.c
1 /*
2  * Product specific probe and attach routines for:
3  *      27/284X and aic7770 motherboard SCSI controllers
4  *
5  * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions, and the following disclaimer,
13  *    without modification.
14  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
15  *    substantially similar to the "NO WARRANTY" disclaimer below
16  *    ("Disclaimer") and any redistribution must be conditioned upon
17  *    including a substantially similar Disclaimer requirement for further
18  *    binary redistribution.
19  * 3. Neither the names of the above-listed copyright holders nor the names
20  *    of any contributors may be used to endorse or promote products derived
21  *    from this software without specific prior written permission.
22  *
23  * Alternatively, this software may be distributed under the terms of the
24  * GNU General Public License ("GPL") version 2 as published by the Free
25  * Software Foundation.
26  *
27  * NO WARRANTY
28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
31  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
36  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
37  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38  * POSSIBILITY OF SUCH DAMAGES.
39  *
40  * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#34 $
41  *
42  * $FreeBSD: src/sys/dev/aic7xxx/aic7770.c,v 1.16 2003/12/17 00:02:09 gibbs Exp $
43  * $DragonFly: src/sys/dev/disk/aic7xxx/aic7770.c,v 1.8 2007/07/06 00:01:16 pavalos Exp $
44  */
45
46 #ifdef __linux__
47 #include "aic7xxx_osm.h"
48 #include "aic7xxx_inline.h"
49 #include "aic7xxx_93cx6.h"
50 #else
51 #include "aic7xxx_osm.h"
52 #include "aic7xxx_inline.h"
53 #include "aic7xxx_93cx6.h"
54 #endif
55
56 #define ID_AIC7770      0x04907770
57 #define ID_AHA_274x     0x04907771
58 #define ID_AHA_284xB    0x04907756 /* BIOS enabled */
59 #define ID_AHA_284x     0x04907757 /* BIOS disabled*/
60 #define ID_OLV_274x     0x04907782 /* Olivetti OEM */
61 #define ID_OLV_274xD    0x04907783 /* Olivetti OEM (Differential) */
62
63 static int aic7770_chip_init(struct ahc_softc *ahc);
64 static int aic7770_suspend(struct ahc_softc *ahc);
65 static int aic7770_resume(struct ahc_softc *ahc);
66 static int aha2840_load_seeprom(struct ahc_softc *ahc);
67 static ahc_device_setup_t ahc_aic7770_VL_setup;
68 static ahc_device_setup_t ahc_aic7770_EISA_setup;
69 static ahc_device_setup_t ahc_aic7770_setup;
70
71 struct aic7770_identity aic7770_ident_table[] =
72 {
73         {
74                 ID_AHA_274x,
75                 0xFFFFFFFF,
76                 "Adaptec 274X SCSI adapter",
77                 ahc_aic7770_EISA_setup
78         },
79         {
80                 ID_AHA_284xB,
81                 0xFFFFFFFE,
82                 "Adaptec 284X SCSI adapter",
83                 ahc_aic7770_VL_setup
84         },
85         {
86                 ID_AHA_284x,
87                 0xFFFFFFFE,
88                 "Adaptec 284X SCSI adapter (BIOS Disabled)",
89                 ahc_aic7770_VL_setup
90         },
91         {
92                 ID_OLV_274x,
93                 0xFFFFFFFF,
94                 "Adaptec (Olivetti OEM) 274X SCSI adapter",
95                 ahc_aic7770_EISA_setup
96         },
97         {
98                 ID_OLV_274xD,
99                 0xFFFFFFFF,
100                 "Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
101                 ahc_aic7770_EISA_setup
102         },
103         /* Generic chip probes for devices we don't know 'exactly' */
104         {
105                 ID_AIC7770,
106                 0xFFFFFFFF,
107                 "Adaptec aic7770 SCSI adapter",
108                 ahc_aic7770_EISA_setup
109         }
110 };
111 const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
112
113 struct aic7770_identity *
114 aic7770_find_device(uint32_t id)
115 {
116         struct  aic7770_identity *entry;
117         int     i;
118
119         for (i = 0; i < ahc_num_aic7770_devs; i++) {
120                 entry = &aic7770_ident_table[i];
121                 if (entry->full_id == (id & entry->id_mask))
122                         return (entry);
123         }
124         return (NULL);
125 }
126
127 int
128 aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
129 {
130         int     error;
131         int     have_seeprom;
132         u_int   hostconf;
133         u_int   irq;
134         u_int   intdef;
135
136         error = entry->setup(ahc);
137         have_seeprom = 0;
138         if (error != 0)
139                 return (error);
140
141         error = aic7770_map_registers(ahc, io);
142         if (error != 0)
143                 return (error);
144
145         /*
146          * Before we continue probing the card, ensure that
147          * its interrupts are *disabled*.  We don't want
148          * a misstep to hang the machine in an interrupt
149          * storm.
150          */
151         ahc_intr_enable(ahc, FALSE);
152
153         ahc->description = entry->name;
154         error = ahc_softc_init(ahc);
155         if (error != 0)
156                 return (error);
157
158         ahc->bus_chip_init = aic7770_chip_init;
159         ahc->bus_suspend = aic7770_suspend;
160         ahc->bus_resume = aic7770_resume;
161
162         error = ahc_reset(ahc, /*reinit*/FALSE);
163         if (error != 0)
164                 return (error);
165
166         /* Make sure we have a valid interrupt vector */
167         intdef = ahc_inb(ahc, INTDEF);
168         irq = intdef & VECTOR;
169         switch (irq) {
170         case 9:
171         case 10:
172         case 11:
173         case 12:
174         case 14:
175         case 15:
176                 break;
177         default:
178                 kprintf("aic7770_config: invalid irq setting %d\n", intdef);
179                 return (ENXIO);
180         }
181
182         if ((intdef & EDGE_TRIG) != 0)
183                 ahc->flags |= AHC_EDGE_INTERRUPT;
184
185         switch (ahc->chip & (AHC_EISA|AHC_VL)) {
186         case AHC_EISA:
187         {
188                 u_int biosctrl;
189                 u_int scsiconf;
190                 u_int scsiconf1;
191
192                 biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
193                 scsiconf = ahc_inb(ahc, SCSICONF);
194                 scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
195
196                 /* Get the primary channel information */
197                 if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
198                         ahc->flags |= 1;
199
200                 if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
201                         ahc->flags |= AHC_USEDEFAULTS;
202                 } else {
203                         if ((ahc->features & AHC_WIDE) != 0) {
204                                 ahc->our_id = scsiconf1 & HWSCSIID;
205                                 if (scsiconf & TERM_ENB)
206                                         ahc->flags |= AHC_TERM_ENB_A;
207                         } else {
208                                 ahc->our_id = scsiconf & HSCSIID;
209                                 ahc->our_id_b = scsiconf1 & HSCSIID;
210                                 if (scsiconf & TERM_ENB)
211                                         ahc->flags |= AHC_TERM_ENB_A;
212                                 if (scsiconf1 & TERM_ENB)
213                                         ahc->flags |= AHC_TERM_ENB_B;
214                         }
215                 }
216                 if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
217                         ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
218                 break;
219         }
220         case AHC_VL:
221         {
222                 have_seeprom = aha2840_load_seeprom(ahc);
223                 break;
224         }
225         default:
226                 break;
227         }
228         if (have_seeprom == 0) {
229                 kfree(ahc->seep_config, M_DEVBUF);
230                 ahc->seep_config = NULL;
231         }
232
233         /*
234          * Ensure autoflush is enabled
235          */
236         ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
237
238         /* Setup the FIFO threshold and the bus off time */
239         hostconf = ahc_inb(ahc, HOSTCONF);
240         ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
241         ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
242
243         ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
244         ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
245
246         /*
247          * Generic aic7xxx initialization.
248          */
249         error = ahc_init(ahc);
250         if (error != 0)
251                 return (error);
252
253         error = aic7770_map_int(ahc, irq);
254         if (error != 0)
255                 return (error);
256
257         /*
258          * Link this softc in with all other ahc instances.
259          */
260         ahc_softc_insert(ahc);
261
262         /*
263          * Enable the board's BUS drivers
264          */
265         ahc_outb(ahc, BCTL, ENABLE);
266
267         return (0);
268 }
269
270 static int
271 aic7770_chip_init(struct ahc_softc *ahc)
272 {
273         ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
274         ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
275         ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
276         ahc_outb(ahc, BCTL, ENABLE);
277         return (ahc_chip_init(ahc));
278 }
279
280 static int
281 aic7770_suspend(struct ahc_softc *ahc)
282 {
283         return (ahc_suspend(ahc));
284 }
285
286 static int
287 aic7770_resume(struct ahc_softc *ahc)
288 {
289         return (ahc_resume(ahc));
290 }
291
292 /*
293  * Read the 284x SEEPROM.
294  */
295 static int
296 aha2840_load_seeprom(struct ahc_softc *ahc)
297 {
298         struct  seeprom_descriptor sd;
299         struct  seeprom_config *sc;
300         int     have_seeprom;
301         uint8_t scsi_conf;
302
303         sd.sd_ahc = ahc;
304         sd.sd_control_offset = SEECTL_2840;
305         sd.sd_status_offset = STATUS_2840;
306         sd.sd_dataout_offset = STATUS_2840;             
307         sd.sd_chip = C46;
308         sd.sd_MS = 0;
309         sd.sd_RDY = EEPROM_TF;
310         sd.sd_CS = CS_2840;
311         sd.sd_CK = CK_2840;
312         sd.sd_DO = DO_2840;
313         sd.sd_DI = DI_2840;
314         sc = ahc->seep_config;
315
316         if (bootverbose)
317                 kprintf("%s: Reading SEEPROM...", ahc_name(ahc));
318         have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
319                                         /*start_addr*/0, sizeof(*sc)/2);
320
321         if (have_seeprom) {
322
323                 if (ahc_verify_cksum(sc) == 0) {
324                         if(bootverbose)
325                                 kprintf ("checksum error\n");
326                         have_seeprom = 0;
327                 } else if (bootverbose) {
328                         kprintf("done.\n");
329                 }
330         }
331
332         if (!have_seeprom) {
333                 if (bootverbose)
334                         kprintf("%s: No SEEPROM available\n", ahc_name(ahc));
335                 ahc->flags |= AHC_USEDEFAULTS;
336         } else {
337                 /*
338                  * Put the data we've collected down into SRAM
339                  * where ahc_init will find it.
340                  */
341                 int      i;
342                 int      max_targ;
343                 uint16_t discenable;
344
345                 max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
346                 discenable = 0;
347                 for (i = 0; i < max_targ; i++){
348                         uint8_t target_settings;
349
350                         target_settings = (sc->device_flags[i] & CFXFER) << 4;
351                         if (sc->device_flags[i] & CFSYNCH)
352                                 target_settings |= SOFS;
353                         if (sc->device_flags[i] & CFWIDEB)
354                                 target_settings |= WIDEXFER;
355                         if (sc->device_flags[i] & CFDISC)
356                                 discenable |= (0x01 << i);
357                         ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
358                 }
359                 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
360                 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
361
362                 ahc->our_id = sc->brtime_id & CFSCSIID;
363
364                 scsi_conf = (ahc->our_id & 0x7);
365                 if (sc->adapter_control & CFSPARITY)
366                         scsi_conf |= ENSPCHK;
367                 if (sc->adapter_control & CFRESETB)
368                         scsi_conf |= RESET_SCSI;
369
370                 if (sc->bios_control & CF284XEXTEND)            
371                         ahc->flags |= AHC_EXTENDED_TRANS_A;
372                 /* Set SCSICONF info */
373                 ahc_outb(ahc, SCSICONF, scsi_conf);
374
375                 if (sc->adapter_control & CF284XSTERM)
376                         ahc->flags |= AHC_TERM_ENB_A;
377         }
378         return (have_seeprom);
379 }
380
381 static int
382 ahc_aic7770_VL_setup(struct ahc_softc *ahc)
383 {
384         int error;
385
386         error = ahc_aic7770_setup(ahc);
387         ahc->chip |= AHC_VL;
388         return (error);
389 }
390
391 static int
392 ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
393 {
394         int error;
395
396         error = ahc_aic7770_setup(ahc);
397         ahc->chip |= AHC_EISA;
398         return (error);
399 }
400
401 static int
402 ahc_aic7770_setup(struct ahc_softc *ahc)
403 {
404         ahc->channel = 'A';
405         ahc->channel_b = 'B';
406         ahc->chip = AHC_AIC7770;
407         ahc->features = AHC_AIC7770_FE;
408         ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
409         ahc->flags |= AHC_PAGESCBS;
410         ahc->instruction_ram_size = 448;
411         return (0);
412 }