Do a major clean-up of the BUSDMA architecture. A large number of
[dragonfly.git] / sys / dev / raid / dpt / dpt_eisa.c
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1/*-
2 * Copyright (c) 1997, 2000 Matthew N. Dodd <winter@jurai.net>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/dev/dpt/dpt_eisa.c,v 1.12.2.1 2000/08/07 18:48:14 peter Exp $
1f7ab7c9 27 * $DragonFly: src/sys/dev/raid/dpt/dpt_eisa.c,v 1.7 2006/10/25 20:56:01 dillon Exp $
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28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/bus.h>
984263bc 35#include <sys/rman.h>
73c4645c 36#include <sys/thread2.h>
984263bc 37
1f2de5d4 38#include <bus/eisa/eisaconf.h>
984263bc 39
1f2de5d4 40#include <bus/cam/scsi/scsi_all.h>
984263bc 41
1f2de5d4 42#include "dpt.h"
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43
44#define DPT_EISA_IOSIZE 0x100
45#define DPT_EISA_SLOT_OFFSET 0x0c00
46#define DPT_EISA_EATA_REG_OFFSET 0x0088
47
48#define DPT_EISA_DPT2402 0x12142402 /* DPT PM2012A/9X */
49#define DPT_EISA_DPTA401 0x1214A401 /* DPT PM2012B/9X */
50#define DPT_EISA_DPTA402 0x1214A402 /* DPT PM2012B2/9X */
51#define DPT_EISA_DPTA410 0x1214A410 /* DPT PM2x22A/9X */
52#define DPT_EISA_DPTA411 0x1214A411 /* DPT Spectre */
53#define DPT_EISA_DPTA412 0x1214A412 /* DPT PM2021A/9X */
54#define DPT_EISA_DPTA420 0x1214A420 /* DPT Smart Cache IV (PM2042) */
55#define DPT_EISA_DPTA501 0x1214A501 /* DPT PM2012B1/9X" */
56#define DPT_EISA_DPTA502 0x1214A502 /* DPT PM2012Bx/9X */
57#define DPT_EISA_DPTA701 0x1214A701 /* DPT PM2011B1/9X */
58#define DPT_EISA_DPTBC01 0x1214BC01 /* DPT PM3011/7X ESDI */
59#define DPT_EISA_DPT8200 0x12148200 /* NEC EATA SCSI */
60#define DPT_EISA_DPT2408 0x12142408 /* ATT EATA SCSI */
61
62/* Function Prototypes */
63
64static const char * dpt_eisa_match (eisa_id_t);
65static int dpt_eisa_probe (device_t);
66static int dpt_eisa_attach (device_t);
67
68
69static int
70dpt_eisa_probe (device_t dev)
71{
72 const char * desc;
73 u_int32_t io_base;
74 dpt_conf_t * conf;
75
76 desc = dpt_eisa_match(eisa_get_id(dev));
77 if (!desc)
78 return (ENXIO);
79 device_set_desc(dev, desc);
80
81 io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + DPT_EISA_SLOT_OFFSET;
82
83 conf = dpt_pio_get_conf(io_base + DPT_EISA_EATA_REG_OFFSET);
84 if (!conf) {
85 printf("dpt: dpt_pio_get_conf() failed.\n");
86 return (ENXIO);
87 }
88
89 eisa_add_iospace(dev, io_base, DPT_EISA_IOSIZE, RESVADDR_NONE);
90 eisa_add_intr(dev, conf->IRQ,
91 (conf->IRQ_TR ? EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE));
92
93 return 0;
94}
95
96static int
97dpt_eisa_attach (device_t dev)
98{
99 dpt_softc_t * dpt;
100 struct resource *io = 0;
101 struct resource *irq = 0;
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102 int rid;
103 void * ih;
104 int error = 0;
105
106 rid = 0;
107 io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
108 if (!io) {
109 device_printf(dev, "No I/O space?!\n");
110 error = ENOMEM;
111 goto bad;
112 }
113
114 rid = 0;
115 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
116 if (!irq) {
117 device_printf(dev, "No irq?!\n");
118 error = ENOMEM;
119 goto bad;
120 }
121
122 dpt = dpt_alloc(dev, rman_get_bustag(io),
123 rman_get_bushandle(io) + DPT_EISA_EATA_REG_OFFSET);
124 if (dpt == NULL) {
125 error = ENOMEM;
126 goto bad;
127 }
128
129 /* Allocate a dmatag representing the capabilities of this attachment */
130 /* XXX Should be a child of the EISA bus dma tag */
131 if (bus_dma_tag_create( /* parent */ NULL,
132 /* alignemnt */ 1,
133 /* boundary */ 0,
134 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
135 /* highaddr */ BUS_SPACE_MAXADDR,
136 /* filter */ NULL,
137 /* filterarg */ NULL,
138 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
139 /* nsegments */ BUS_SPACE_UNRESTRICTED,
140 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
141 /* flags */0,
142 &dpt->parent_dmat) != 0) {
143 dpt_free(dpt);
144 error = ENXIO;
145 goto bad;
146 }
147
73c4645c 148 crit_enter();
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149
150 if (dpt_init(dpt) != 0) {
151 dpt_free(dpt);
152 error = ENXIO;
153 goto bad;
154 }
155
156 /* Register with the XPT */
157 dpt_attach(dpt);
158
73c4645c 159 crit_exit();
984263bc 160
ee61f228 161 error = bus_setup_intr(dev, irq, 0, dpt_intr, dpt, &ih, NULL);
e9cb6d99 162 if (error) {
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163 device_printf(dev, "Unable to register interrupt handler\n");
164 error = ENXIO;
165 goto bad;
166 }
167
168 return (error);
169
170 bad:
171 if (io)
172 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
173 if (irq)
174 bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
175
176 return (error);
177}
178
179static const char *
180dpt_eisa_match(type)
181 eisa_id_t type;
182{
183 switch (type) {
184 case DPT_EISA_DPT2402:
185 case DPT_EISA_DPTA401:
186 case DPT_EISA_DPTA402:
187 case DPT_EISA_DPTA410:
188 case DPT_EISA_DPTA411:
189 case DPT_EISA_DPTA412:
190 case DPT_EISA_DPTA420:
191 case DPT_EISA_DPTA501:
192 case DPT_EISA_DPTA502:
193 case DPT_EISA_DPTA701:
194 case DPT_EISA_DPTBC01:
195 case DPT_EISA_DPT8200:
196 case DPT_EISA_DPT2408:
197 return ("DPT SCSI Host Bus Adapter");
198 break;
199 default:
200 break;
201 }
202
203 return (NULL);
204}
205
206static device_method_t dpt_eisa_methods[] = {
207 /* Device interface */
208 DEVMETHOD(device_probe, dpt_eisa_probe),
209 DEVMETHOD(device_attach, dpt_eisa_attach),
210
211 { 0, 0 }
212};
213
214static driver_t dpt_eisa_driver = {
215 "dpt",
216 dpt_eisa_methods,
217 sizeof(dpt_softc_t),
218};
219
220static devclass_t dpt_devclass;
221
222DRIVER_MODULE(dpt, eisa, dpt_eisa_driver, dpt_devclass, 0, 0);