Do a major clean-up of the BUSDMA architecture. A large number of
[dragonfly.git] / sys / dev / disk / advansys / adv_eisa.c
CommitLineData
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1/*
2 * Device probe and attach routines for the following
3 * Advanced Systems Inc. SCSI controllers:
4 *
5 * Single Channel Products:
6 * ABP742 - Bus-Master EISA (240 CDB)
7 *
8 * Dual Channel Products:
9 * ABP752 - Dual Channel Bus-Master EISA (240 CDB Per Channel)
10 *
11 * Copyright (c) 1997 Justin Gibbs.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions, and the following disclaimer,
19 * without modification, immediately at the beginning of the file.
20 * 2. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD: src/sys/dev/advansys/adv_eisa.c,v 1.9.2.1 2000/04/14 13:32:44 nyan Exp $
1f7ab7c9 36 * $DragonFly: src/sys/dev/disk/advansys/adv_eisa.c,v 1.6 2006/10/25 20:55:52 dillon Exp $
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37 */
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/module.h>
43#include <sys/bus.h>
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44#include <sys/rman.h>
45
1f2de5d4 46#include <bus/eisa/eisaconf.h>
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1f2de5d4 48#include "advansys.h"
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49
50#define EISA_DEVICE_ID_ADVANSYS_740 0x04507400
51#define EISA_DEVICE_ID_ADVANSYS_750 0x04507500
52
53#define ADV_EISA_SLOT_OFFSET 0xc00
54#define ADV_EISA_OFFSET_CHAN1 0x30
55#define ADV_EISA_OFFSET_CHAN2 0x50
56#define ADV_EISA_IOSIZE 0x100
57
58#define ADV_EISA_ROM_BIOS_ADDR_REG 0x86
59#define ADV_EISA_IRQ_BURST_LEN_REG 0x87
60#define ADV_EISA_IRQ_MASK 0x07
61#define ADV_EISA_IRQ_10 0x00
62#define ADV_EISA_IRQ_11 0x01
63#define ADV_EISA_IRQ_12 0x02
64#define ADV_EISA_IRQ_14 0x04
65#define ADV_EISA_IRQ_15 0x05
66
67#define ADV_EISA_MAX_DMA_ADDR (0x07FFFFFFL)
68#define ADV_EISA_MAX_DMA_COUNT (0x07FFFFFFL)
69
70/*
71 * The overrun buffer shared amongst all EISA adapters.
72 */
73static u_int8_t* overrun_buf;
74static bus_dma_tag_t overrun_dmat;
75static bus_dmamap_t overrun_dmamap;
76static bus_addr_t overrun_physbase;
77
78static const char*
79adv_eisa_match(eisa_id_t type)
80{
81 switch (type & ~0xF) {
82 case EISA_DEVICE_ID_ADVANSYS_740:
83 return ("AdvanSys ABP-740/742 SCSI adapter");
84 break;
85 case EISA_DEVICE_ID_ADVANSYS_750:
86 return ("AdvanSys ABP-750/752 SCSI adapter");
87 break;
88 default:
89 break;
90 }
91 return (NULL);
92}
93
94static int
95adv_eisa_probe(device_t dev)
96{
97 const char *desc;
98 u_int32_t iobase;
99 u_int8_t irq;
100
101 desc = adv_eisa_match(eisa_get_id(dev));
102 if (!desc)
103 return (ENXIO);
104 device_set_desc(dev, desc);
105
106 iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + ADV_EISA_SLOT_OFFSET;
107
108 eisa_add_iospace(dev, iobase, ADV_EISA_IOSIZE, RESVADDR_NONE);
109 irq = inb(iobase + ADV_EISA_IRQ_BURST_LEN_REG);
110 irq &= ADV_EISA_IRQ_MASK;
111 switch (irq) {
112 case 0:
113 case 1:
114 case 2:
115 case 4:
116 case 5:
117 break;
118 default:
119 printf("adv at slot %d: illegal "
120 "irq setting %d\n", eisa_get_slot(dev),
121 irq);
122 return ENXIO;
123 }
124 eisa_add_intr(dev, irq + 10, EISA_TRIGGER_LEVEL);
125
126 return 0;
127}
128
129static int
130adv_eisa_attach(device_t dev)
131{
132 struct adv_softc *adv;
133 struct adv_softc *adv_b;
134 struct resource *io;
135 struct resource *irq;
136 int rid, error;
137 void *ih;
138
139 adv_b = NULL;
140
141 rid = 0;
142 io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
143 0, ~0, 1, RF_ACTIVE);
144 if (!io) {
145 device_printf(dev, "No I/O space?!\n");
146 return ENOMEM;
147 }
148
149 rid = 0;
150 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
151 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE);
152 if (!irq) {
153 device_printf(dev, "No irq?!\n");
154 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
155 return ENOMEM;
156
157 }
158
159 switch (eisa_get_id(dev) & ~0xF) {
160 case EISA_DEVICE_ID_ADVANSYS_750:
161 adv_b = adv_alloc(dev, rman_get_bustag(io),
162 rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN2);
163 if (adv_b == NULL)
164 goto bad;
165
166 /*
167 * Allocate a parent dmatag for all tags created
168 * by the MI portions of the advansys driver
169 */
170 /* XXX Should be a child of the PCI bus dma tag */
171 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
172 /*boundary*/0,
173 /*lowaddr*/ADV_EISA_MAX_DMA_ADDR,
174 /*highaddr*/BUS_SPACE_MAXADDR,
175 /*filter*/NULL, /*filterarg*/NULL,
176 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
177 /*nsegments*/BUS_SPACE_UNRESTRICTED,
178 /*maxsegsz*/ADV_EISA_MAX_DMA_COUNT,
179 /*flags*/0,
180 &adv_b->parent_dmat);
181
182 if (error != 0) {
183 printf("%s: Could not allocate DMA tag - error %d\n",
184 adv_name(adv_b), error);
185 adv_free(adv_b);
186 goto bad;
187 }
188
189 adv_b->init_level++;
190
191 /* FALLTHROUGH */
192 case EISA_DEVICE_ID_ADVANSYS_740:
193 adv = adv_alloc(dev, rman_get_bustag(io),
194 rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN1);
195 if (adv == NULL) {
196 if (adv_b != NULL)
197 adv_free(adv_b);
198 goto bad;
199 }
200
201 /*
202 * Allocate a parent dmatag for all tags created
203 * by the MI portions of the advansys driver
204 */
205 /* XXX Should be a child of the PCI bus dma tag */
206 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
207 /*boundary*/0,
208 /*lowaddr*/ADV_EISA_MAX_DMA_ADDR,
209 /*highaddr*/BUS_SPACE_MAXADDR,
210 /*filter*/NULL, /*filterarg*/NULL,
211 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
212 /*nsegments*/BUS_SPACE_UNRESTRICTED,
213 /*maxsegsz*/ADV_EISA_MAX_DMA_COUNT,
214 /*flags*/0,
215 &adv->parent_dmat);
216
217 if (error != 0) {
218 printf("%s: Could not allocate DMA tag - error %d\n",
219 adv_name(adv), error);
220 adv_free(adv);
221 goto bad;
222 }
223
224 adv->init_level++;
225 break;
226 default:
227 printf("adveisaattach: Unknown device type!\n");
228 goto bad;
229 break;
230 }
231
232 if (overrun_buf == NULL) {
233 /* Need to allocate our overrun buffer */
234 if (bus_dma_tag_create(adv->parent_dmat,
235 /*alignment*/8,
236 /*boundary*/0,
237 ADV_EISA_MAX_DMA_ADDR,
238 BUS_SPACE_MAXADDR,
239 /*filter*/NULL,
240 /*filterarg*/NULL,
241 ADV_OVERRUN_BSIZE,
242 /*nsegments*/1,
243 BUS_SPACE_MAXSIZE_32BIT,
244 /*flags*/0,
245 &overrun_dmat) != 0) {
246 adv_free(adv);
247 goto bad;
248 }
249 if (bus_dmamem_alloc(overrun_dmat,
250 (void **)&overrun_buf,
251 BUS_DMA_NOWAIT,
252 &overrun_dmamap) != 0) {
253 bus_dma_tag_destroy(overrun_dmat);
254 adv_free(adv);
255 goto bad;
256 }
257 /* And permanently map it in */
258 bus_dmamap_load(overrun_dmat, overrun_dmamap,
259 overrun_buf, ADV_OVERRUN_BSIZE,
260 adv_map, &overrun_physbase,
261 /*flags*/0);
262 }
263
264 /*
265 * Now that we know we own the resources we need, do the
266 * card initialization.
267 */
268
269 /*
270 * Stop the chip.
271 */
272 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
273 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
274
275 adv->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
276 + ADV_CHIP_MIN_VER_EISA - 1;
277
278 if (adv_init(adv) != 0) {
279 adv_free(adv);
280 if (adv_b != NULL)
281 adv_free(adv_b);
282 return(-1);
283 }
284
285 adv->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
286 adv->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
287
288 if (adv_b != NULL) {
289 /*
290 * Stop the chip.
291 */
292 ADV_OUTB(adv_b, ADV_CHIP_CTRL, ADV_CC_HALT);
293 ADV_OUTW(adv_b, ADV_CHIP_STATUS, 0);
294
295 adv_b->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
296 + ADV_CHIP_MIN_VER_EISA - 1;
297
298 if (adv_init(adv_b) != 0) {
299 adv_free(adv_b);
300 } else {
301 adv_b->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
302 adv_b->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
303 }
304 }
305
306 /*
307 * Enable our interrupt handler.
308 */
ee61f228 309 bus_setup_intr(dev, irq, 0, adv_intr, adv, &ih, NULL);
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310
311 /* Attach sub-devices - always succeeds */
312 adv_attach(adv);
313 if (adv_b != NULL)
314 adv_attach(adv_b);
315
316 return 0;
317
318 bad:
319 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
320 bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
321 return -1;
322}
323
324static device_method_t adv_eisa_methods[] = {
325 /* Device interface */
326 DEVMETHOD(device_probe, adv_eisa_probe),
327 DEVMETHOD(device_attach, adv_eisa_attach),
328 { 0, 0 }
329};
330
331static driver_t adv_eisa_driver = {
332 "adv", adv_eisa_methods, sizeof(struct adv_softc)
333};
334
335static devclass_t adv_eisa_devclass;
336DRIVER_MODULE(adv, eisa, adv_eisa_driver, adv_eisa_devclass, 0, 0);