aic7770.c revision 331722 
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
43#ifdef __linux__
44#include "aic7xxx_osm.h"
45#include "aic7xxx_inline.h"
46#include "aic7xxx_93cx6.h"
47#else
48#include <sys/cdefs.h>
49__FBSDID("$FreeBSD: stable/11/sys/dev/aic7xxx/aic7770.c 331722 2018-03-29 02:50:57Z eadler $");
50#include <dev/aic7xxx/aic7xxx_osm.h>
51#include <dev/aic7xxx/aic7xxx_inline.h>
52#include <dev/aic7xxx/aic7xxx_93cx6.h>
53#endif
54
55#define ID_AIC7770	0x04907770
56#define ID_AHA_274x	0x04907771
57#define ID_AHA_284xB	0x04907756 /* BIOS enabled */
58#define ID_AHA_284x	0x04907757 /* BIOS disabled*/
59#define	ID_OLV_274x	0x04907782 /* Olivetti OEM */
60#define	ID_OLV_274xD	0x04907783 /* Olivetti OEM (Differential) */
61
62static int aic7770_chip_init(struct ahc_softc *ahc);
63static int aic7770_suspend(struct ahc_softc *ahc);
64static int aic7770_resume(struct ahc_softc *ahc);
65static int aha2840_load_seeprom(struct ahc_softc *ahc);
66static ahc_device_setup_t ahc_aic7770_VL_setup;
67static ahc_device_setup_t ahc_aic7770_EISA_setup;
68static ahc_device_setup_t ahc_aic7770_setup;
69
70struct aic7770_identity aic7770_ident_table[] =
71{
72	{
73		ID_AHA_274x,
74		0xFFFFFFFF,
75		"Adaptec 274X SCSI adapter",
76		ahc_aic7770_EISA_setup
77	},
78	{
79		ID_AHA_284xB,
80		0xFFFFFFFE,
81		"Adaptec 284X SCSI adapter",
82		ahc_aic7770_VL_setup
83	},
84	{
85		ID_AHA_284x,
86		0xFFFFFFFE,
87		"Adaptec 284X SCSI adapter (BIOS Disabled)",
88		ahc_aic7770_VL_setup
89	},
90	{
91		ID_OLV_274x,
92		0xFFFFFFFF,
93		"Adaptec (Olivetti OEM) 274X SCSI adapter",
94		ahc_aic7770_EISA_setup
95	},
96	{
97		ID_OLV_274xD,
98		0xFFFFFFFF,
99		"Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
100		ahc_aic7770_EISA_setup
101	},
102	/* Generic chip probes for devices we don't know 'exactly' */
103	{
104		ID_AIC7770,
105		0xFFFFFFFF,
106		"Adaptec aic7770 SCSI adapter",
107		ahc_aic7770_EISA_setup
108	}
109};
110const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
111
112struct aic7770_identity *
113aic7770_find_device(uint32_t id)
114{
115	struct	aic7770_identity *entry;
116	int	i;
117
118	for (i = 0; i < ahc_num_aic7770_devs; i++) {
119		entry = &aic7770_ident_table[i];
120		if (entry->full_id == (id & entry->id_mask))
121			return (entry);
122	}
123	return (NULL);
124}
125
126int
127aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
128{
129	int	error;
130	int	have_seeprom;
131	u_int	hostconf;
132	u_int   irq;
133	u_int	intdef;
134
135	error = entry->setup(ahc);
136	have_seeprom = 0;
137	if (error != 0)
138		return (error);
139
140	error = aic7770_map_registers(ahc, io);
141	if (error != 0)
142		return (error);
143
144	/*
145	 * Before we continue probing the card, ensure that
146	 * its interrupts are *disabled*.  We don't want
147	 * a misstep to hang the machine in an interrupt
148	 * storm.
149	 */
150	ahc_intr_enable(ahc, FALSE);
151
152	ahc->description = entry->name;
153	error = ahc_softc_init(ahc);
154	if (error != 0)
155		return (error);
156
157	ahc->bus_chip_init = aic7770_chip_init;
158	ahc->bus_suspend = aic7770_suspend;
159	ahc->bus_resume = aic7770_resume;
160
161	error = ahc_reset(ahc, /*reinit*/FALSE);
162	if (error != 0)
163		return (error);
164
165	/* Make sure we have a valid interrupt vector */
166	intdef = ahc_inb(ahc, INTDEF);
167	irq = intdef & VECTOR;
168	switch (irq) {
169	case 9:
170	case 10:
171	case 11:
172	case 12:
173	case 14:
174	case 15:
175		break;
176	default:
177		printf("aic7770_config: invalid irq setting %d\n", intdef);
178		return (ENXIO);
179	}
180
181	if ((intdef & EDGE_TRIG) != 0)
182		ahc->flags |= AHC_EDGE_INTERRUPT;
183
184	switch (ahc->chip & (AHC_EISA|AHC_VL)) {
185	case AHC_EISA:
186	{
187		u_int biosctrl;
188		u_int scsiconf;
189		u_int scsiconf1;
190
191		biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
192		scsiconf = ahc_inb(ahc, SCSICONF);
193		scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
194
195		/* Get the primary channel information */
196		if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
197			ahc->flags |= 1;
198
199		if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
200			ahc->flags |= AHC_USEDEFAULTS;
201		} else {
202			if ((ahc->features & AHC_WIDE) != 0) {
203				ahc->our_id = scsiconf1 & HWSCSIID;
204				if (scsiconf & TERM_ENB)
205					ahc->flags |= AHC_TERM_ENB_A;
206			} else {
207				ahc->our_id = scsiconf & HSCSIID;
208				ahc->our_id_b = scsiconf1 & HSCSIID;
209				if (scsiconf & TERM_ENB)
210					ahc->flags |= AHC_TERM_ENB_A;
211				if (scsiconf1 & TERM_ENB)
212					ahc->flags |= AHC_TERM_ENB_B;
213			}
214		}
215		if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
216			ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
217		break;
218	}
219	case AHC_VL:
220	{
221		have_seeprom = aha2840_load_seeprom(ahc);
222		break;
223	}
224	default:
225		break;
226	}
227	if (have_seeprom == 0) {
228		free(ahc->seep_config, M_DEVBUF);
229		ahc->seep_config = NULL;
230	}
231
232	/*
233	 * Ensure autoflush is enabled
234	 */
235	ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
236
237	/* Setup the FIFO threshold and the bus off time */
238	hostconf = ahc_inb(ahc, HOSTCONF);
239	ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
240	ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
241
242	ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
243	ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
244
245	/*
246	 * Generic aic7xxx initialization.
247	 */
248	error = ahc_init(ahc);
249	if (error != 0)
250		return (error);
251
252	error = aic7770_map_int(ahc, irq);
253	if (error != 0)
254		return (error);
255
256	ahc_lock(ahc);
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	ahc_unlock(ahc);
268
269	return (0);
270}
271
272static int
273aic7770_chip_init(struct ahc_softc *ahc)
274{
275	ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
276	ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
277	ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
278	ahc_outb(ahc, BCTL, ENABLE);
279	return (ahc_chip_init(ahc));
280}
281
282static int
283aic7770_suspend(struct ahc_softc *ahc)
284{
285	return (ahc_suspend(ahc));
286}
287
288static int
289aic7770_resume(struct ahc_softc *ahc)
290{
291	return (ahc_resume(ahc));
292}
293
294/*
295 * Read the 284x SEEPROM.
296 */
297static int
298aha2840_load_seeprom(struct ahc_softc *ahc)
299{
300	struct	seeprom_descriptor sd;
301	struct	seeprom_config *sc;
302	int	have_seeprom;
303	uint8_t scsi_conf;
304
305	sd.sd_ahc = ahc;
306	sd.sd_control_offset = SEECTL_2840;
307	sd.sd_status_offset = STATUS_2840;
308	sd.sd_dataout_offset = STATUS_2840;
309	sd.sd_chip = C46;
310	sd.sd_MS = 0;
311	sd.sd_RDY = EEPROM_TF;
312	sd.sd_CS = CS_2840;
313	sd.sd_CK = CK_2840;
314	sd.sd_DO = DO_2840;
315	sd.sd_DI = DI_2840;
316	sc = ahc->seep_config;
317
318	if (bootverbose)
319		printf("%s: Reading SEEPROM...", ahc_name(ahc));
320	have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
321					/*start_addr*/0, sizeof(*sc)/2);
322
323	if (have_seeprom) {
324
325		if (ahc_verify_cksum(sc) == 0) {
326			if(bootverbose)
327				printf ("checksum error\n");
328			have_seeprom = 0;
329		} else if (bootverbose) {
330			printf("done.\n");
331		}
332	}
333
334	if (!have_seeprom) {
335		if (bootverbose)
336			printf("%s: No SEEPROM available\n", ahc_name(ahc));
337		ahc->flags |= AHC_USEDEFAULTS;
338	} else {
339		/*
340		 * Put the data we've collected down into SRAM
341		 * where ahc_init will find it.
342		 */
343		int	 i;
344		int	 max_targ;
345		uint16_t discenable;
346
347		max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
348		discenable = 0;
349		for (i = 0; i < max_targ; i++){
350			uint8_t target_settings;
351
352			target_settings = (sc->device_flags[i] & CFXFER) << 4;
353			if (sc->device_flags[i] & CFSYNCH)
354				target_settings |= SOFS;
355			if (sc->device_flags[i] & CFWIDEB)
356				target_settings |= WIDEXFER;
357			if (sc->device_flags[i] & CFDISC)
358				discenable |= (0x01 << i);
359			ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
360		}
361		ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
362		ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
363
364		ahc->our_id = sc->brtime_id & CFSCSIID;
365
366		scsi_conf = (ahc->our_id & 0x7);
367		if (sc->adapter_control & CFSPARITY)
368			scsi_conf |= ENSPCHK;
369		if (sc->adapter_control & CFRESETB)
370			scsi_conf |= RESET_SCSI;
371
372		if (sc->bios_control & CF284XEXTEND)
373			ahc->flags |= AHC_EXTENDED_TRANS_A;
374		/* Set SCSICONF info */
375		ahc_outb(ahc, SCSICONF, scsi_conf);
376
377		if (sc->adapter_control & CF284XSTERM)
378			ahc->flags |= AHC_TERM_ENB_A;
379	}
380	return (have_seeprom);
381}
382
383static int
384ahc_aic7770_VL_setup(struct ahc_softc *ahc)
385{
386	int error;
387
388	error = ahc_aic7770_setup(ahc);
389	ahc->chip |= AHC_VL;
390	return (error);
391}
392
393static int
394ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
395{
396	int error;
397
398	error = ahc_aic7770_setup(ahc);
399	ahc->chip |= AHC_EISA;
400	return (error);
401}
402
403static int
404ahc_aic7770_setup(struct ahc_softc *ahc)
405{
406	ahc->channel = 'A';
407	ahc->channel_b = 'B';
408	ahc->chip = AHC_AIC7770;
409	ahc->features = AHC_AIC7770_FE;
410	ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
411	ahc->flags |= AHC_PAGESCBS;
412	ahc->instruction_ram_size = 448;
413	return (0);
414}
415