adv_eisa.c revision 241492 
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
36#include <sys/cdefs.h>
37__FBSDID("$FreeBSD: head/sys/dev/advansys/adv_eisa.c 241492 2012-10-12 21:31:44Z jhb $");
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/module.h>
43#include <sys/lock.h>
44#include <sys/mutex.h>
45#include <sys/bus.h>
46
47#include <machine/bus.h>
48#include <machine/resource.h>
49#include <sys/rman.h>
50
51#include <dev/eisa/eisaconf.h>
52
53#include <dev/advansys/advansys.h>
54
55#define EISA_DEVICE_ID_ADVANSYS_740	0x04507400
56#define EISA_DEVICE_ID_ADVANSYS_750	0x04507500
57
58#define ADV_EISA_SLOT_OFFSET		0xc00
59#define ADV_EISA_OFFSET_CHAN1		0x30
60#define ADV_EISA_OFFSET_CHAN2		0x50
61#define ADV_EISA_IOSIZE			0x100
62
63#define ADV_EISA_ROM_BIOS_ADDR_REG	0x86
64#define ADV_EISA_IRQ_BURST_LEN_REG	0x87
65#define 	ADV_EISA_IRQ_MASK	0x07
66#define 	ADV_EISA_IRQ_10		0x00
67#define 	ADV_EISA_IRQ_11		0x01
68#define 	ADV_EISA_IRQ_12		0x02
69#define 	ADV_EISA_IRQ_14		0x04
70#define 	ADV_EISA_IRQ_15		0x05
71
72#define	ADV_EISA_MAX_DMA_ADDR   (0x07FFFFFFL)
73#define	ADV_EISA_MAX_DMA_COUNT  (0x07FFFFFFL)
74
75/*
76 * The overrun buffer shared amongst all EISA adapters.
77 */
78static	void*		overrun_buf;
79static	bus_dma_tag_t	overrun_dmat;
80static	bus_dmamap_t	overrun_dmamap;
81static	bus_addr_t	overrun_physbase;
82
83static const char*
84adv_eisa_match(eisa_id_t type)
85{
86	switch (type & ~0xF) {
87	case EISA_DEVICE_ID_ADVANSYS_740:
88		return ("AdvanSys ABP-740/742 SCSI adapter");
89		break;
90	case EISA_DEVICE_ID_ADVANSYS_750:
91		return ("AdvanSys ABP-750/752 SCSI adapter");
92		break;
93	default:
94		break;
95	}
96	return (NULL);
97}
98
99static int
100adv_eisa_probe(device_t dev)
101{
102	const char *desc;
103	u_int32_t iobase;
104	u_int8_t irq;
105
106	desc = adv_eisa_match(eisa_get_id(dev));
107	if (!desc)
108		return (ENXIO);
109	device_set_desc(dev, desc);
110
111	iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + ADV_EISA_SLOT_OFFSET;
112
113	eisa_add_iospace(dev, iobase, ADV_EISA_IOSIZE, RESVADDR_NONE);
114	irq = inb(iobase + ADV_EISA_IRQ_BURST_LEN_REG);
115	irq &= ADV_EISA_IRQ_MASK;
116	switch (irq) {
117	case 0:
118	case 1:
119	case 2:
120	case 4:
121	case 5:
122	    break;
123	default:
124	    printf("adv at slot %d: illegal "
125		   "irq setting %d\n", eisa_get_slot(dev),
126		   irq);
127	    return ENXIO;
128	}
129	eisa_add_intr(dev, irq + 10, EISA_TRIGGER_LEVEL);
130
131	return 0;
132}
133
134/*
135 * The adv_b stuff to handle twin-channel cards will not work in its current
136 * incarnation.  It tries to reuse the same softc since adv_alloc() doesn't
137 * actually allocate a softc.  It also tries to reuse the same unit number
138 * for both sims.  This can be re-enabled if someone fixes it properly.
139 */
140static int
141adv_eisa_attach(device_t dev)
142{
143	struct adv_softc *adv;
144#if 0
145	struct adv_softc *adv_b;
146#endif
147	struct resource *io;
148	struct resource *irq;
149	int rid, error;
150	void *ih;
151
152#if 0
153	adv_b = NULL;
154#endif
155
156	rid = 0;
157	io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
158	if (!io) {
159		device_printf(dev, "No I/O space?!\n");
160		return ENOMEM;
161	}
162
163	rid = 0;
164	irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
165				     RF_SHAREABLE | RF_ACTIVE);
166	if (!irq) {
167		device_printf(dev, "No irq?!\n");
168		bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
169		return ENOMEM;
170
171	}
172
173	switch (eisa_get_id(dev) & ~0xF) {
174	case EISA_DEVICE_ID_ADVANSYS_750:
175#if 0
176		adv_b = adv_alloc(dev, io, ADV_EISA_OFFSET_CHAN2);
177		if (adv_b == NULL)
178			goto bad;
179
180		/*
181		 * Allocate a parent dmatag for all tags created
182		 * by the MI portions of the advansys driver
183		 */
184		error = bus_dma_tag_create(
185				/* parent	*/ bus_get_dma_tag(dev),
186				/* alignment	*/ 1,
187				/* boundary	*/ 0,
188				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
189				/* highaddr	*/ BUS_SPACE_MAXADDR,
190				/* filter	*/ NULL,
191				/* filterarg	*/ NULL,
192				/* maxsize	*/ BUS_SPACE_MAXSIZE_32BIT,
193				/* nsegments	*/ ~0,
194				/* maxsegsz	*/ ADV_EISA_MAX_DMA_COUNT,
195				/* flags	*/ 0,
196				/* lockfunc	*/ NULL,
197				/* lockarg	*/ NULL,
198				&adv_b->parent_dmat);
199
200		if (error != 0) {
201			device_printf(dev, "Could not allocate DMA tag - error %d\n",
202			       error);
203			adv_free(adv_b);
204			goto bad;
205		}
206
207		adv_b->init_level++;
208#endif
209
210		/* FALLTHROUGH */
211	case EISA_DEVICE_ID_ADVANSYS_740:
212		adv = adv_alloc(dev, io, ADV_EISA_OFFSET_CHAN1);
213		if (adv == NULL) {
214#if 0
215			if (adv_b != NULL)
216				adv_free(adv_b);
217#endif
218			goto bad;
219		}
220
221		/*
222		 * Allocate a parent dmatag for all tags created
223		 * by the MI portions of the advansys driver
224		 */
225		error = bus_dma_tag_create(
226				/* parent	*/ bus_get_dma_tag(dev),
227				/* alignment	*/ 1,
228				/* boundary	*/ 0,
229				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
230				/* highaddr	*/ BUS_SPACE_MAXADDR,
231				/* filter	*/ NULL,
232				/* filterarg	*/ NULL,
233				/* maxsize	*/ BUS_SPACE_MAXSIZE_32BIT,
234				/* nsegments	*/ ~0,
235				/* maxsegsz	*/ ADV_EISA_MAX_DMA_COUNT,
236				/* flags	*/ 0,
237				/* lockfunc	*/ NULL,
238				/* lockarg	*/ NULL,
239				&adv->parent_dmat);
240
241		if (error != 0) {
242			device_printf(dev, "Could not allocate DMA tag - error %d\n",
243			       error);
244			adv_free(adv);
245			goto bad;
246		}
247
248		adv->init_level++;
249		break;
250	default:
251		printf("adveisaattach: Unknown device type!\n");
252		goto bad;
253		break;
254	}
255
256	if (overrun_buf == NULL) {
257		/* Need to allocate our overrun buffer */
258		if (bus_dma_tag_create(
259				/* parent	*/ bus_get_dma_tag(dev),
260				/* alignment	*/ 8,
261				/* boundary	*/ 0,
262				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
263				/* highaddr	*/ BUS_SPACE_MAXADDR,
264				/* filter	*/ NULL,
265				/* filterarg	*/ NULL,
266				/* maxsize	*/ ADV_OVERRUN_BSIZE,
267				/* nsegments	*/ 1,
268				/* maxsegsz	*/ BUS_SPACE_MAXSIZE_32BIT,
269				/* flags	*/ 0,
270				/* lockfunc	*/ NULL,
271				/* lockarg	*/ NULL,
272				&overrun_dmat) != 0) {
273			adv_free(adv);
274			goto bad;
275       		}
276		if (bus_dmamem_alloc(overrun_dmat,
277				     &overrun_buf,
278				     BUS_DMA_NOWAIT,
279				     &overrun_dmamap) != 0) {
280			bus_dma_tag_destroy(overrun_dmat);
281			adv_free(adv);
282			goto bad;
283		}
284		/* And permanently map it in */
285		bus_dmamap_load(overrun_dmat, overrun_dmamap,
286				overrun_buf, ADV_OVERRUN_BSIZE,
287				adv_map, &overrun_physbase,
288				/*flags*/0);
289	}
290
291	/*
292	 * Now that we know we own the resources we need, do the
293	 * card initialization.
294	 */
295
296	/*
297	 * Stop the chip.
298	 */
299	ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
300	ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
301
302	adv->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
303			  + ADV_CHIP_MIN_VER_EISA - 1;
304
305	if (adv_init(adv) != 0) {
306		adv_free(adv);
307#if 0
308		if (adv_b != NULL)
309			adv_free(adv_b);
310#endif
311		goto bad;
312	}
313
314	adv->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
315	adv->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
316
317#if 0
318	if (adv_b != NULL) {
319		/*
320		 * Stop the chip.
321		 */
322		ADV_OUTB(adv_b, ADV_CHIP_CTRL, ADV_CC_HALT);
323		ADV_OUTW(adv_b, ADV_CHIP_STATUS, 0);
324
325		adv_b->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
326				    + ADV_CHIP_MIN_VER_EISA - 1;
327
328		if (adv_init(adv_b) != 0) {
329			adv_free(adv_b);
330		} else {
331			adv_b->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
332			adv_b->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
333		}
334	}
335#endif
336
337	/*
338	 * Enable our interrupt handler.
339	 */
340	if (bus_setup_intr(dev, irq, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE, NULL,
341	    adv_intr, adv, &ih) != 0) {
342		adv_free(adv);
343		goto bad;
344	}
345
346	/* Attach sub-devices */
347	if (adv_attach(adv) != 0) {
348		adv_free(adv);
349		goto bad;
350	}
351#if 0
352	if (adv_b != NULL)
353		adv_attach(adv_b);
354#endif
355
356	return 0;
357
358 bad:
359	bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
360	bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
361	return ENXIO;
362}
363
364static device_method_t adv_eisa_methods[] = {
365	/* Device interface */
366	DEVMETHOD(device_probe,		adv_eisa_probe),
367	DEVMETHOD(device_attach,	adv_eisa_attach),
368	{ 0, 0 }
369};
370
371static driver_t adv_eisa_driver = {
372	"adv", adv_eisa_methods, sizeof(struct adv_softc)
373};
374
375static devclass_t adv_eisa_devclass;
376DRIVER_MODULE(adv, eisa, adv_eisa_driver, adv_eisa_devclass, 0, 0);
377MODULE_DEPEND(adv, eisa, 1, 1, 1);
378