aha_isa.c revision 166901 
1/*
2 * Product specific probe and attach routines for:
3 *      Adaptec 154x.
4 */
5/*-
6 * Copyright (c) 1999-2003 M. Warner Losh
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions, and the following disclaimer,
14 *    without modification, immediately at the beginning of the file.
15 * 2. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * Derived from bt isa from end, written by:
31 *
32 * Copyright (c) 1998 Justin T. Gibbs
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 *    notice, this list of conditions, and the following disclaimer,
40 *    without modification, immediately at the beginning of the file.
41 * 2. The name of the author may not be used to endorse or promote products
42 *    derived from this software without specific prior written permission.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
48 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * SUCH DAMAGE.
55 */
56
57#include <sys/cdefs.h>
58__FBSDID("$FreeBSD: head/sys/dev/aha/aha_isa.c 166901 2007-02-23 12:19:07Z piso $");
59
60#include <sys/param.h>
61#include <sys/systm.h>
62#include <sys/kernel.h>
63#include <sys/lock.h>
64#include <sys/mutex.h>
65
66#include <machine/bus.h>
67#include <machine/resource.h>
68#include <sys/module.h>
69#include <sys/bus.h>
70#include <sys/rman.h>
71
72#include <isa/isavar.h>
73
74#include <dev/aha/ahareg.h>
75
76#include <cam/scsi/scsi_all.h>
77
78static struct isa_pnp_id aha_ids[] = {
79	{ADP0100_PNP,		"Adaptec 1540/1542 ISA SCSI"},	/* ADP0100 */
80	{AHA1540_PNP,		"Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */
81	{AHA1542_PNP,		"Adaptec 1542/aha-1535"},	/* ADP1542 */
82	{AHA1542_PNPCOMPAT,	"Adaptec 1542 compatible"},	/* PNP00A0 */
83	{ICU0091_PNP,		"Adaptec AHA-1540/1542 SCSI"},	/* ICU0091 */
84	{0}
85};
86
87/*
88 * I/O ports listed in the order enumerated by the card for certain op codes.
89 */
90static bus_addr_t aha_board_ports[] =
91{
92	0x330,
93	0x334,
94	0x230,
95	0x234,
96	0x130,
97	0x134
98};
99
100/*
101 * Check if the device can be found at the port given
102 */
103static int
104aha_isa_probe(device_t dev)
105{
106	/*
107	 * find unit and check we have that many defined
108	 */
109	struct	aha_softc *aha = device_get_softc(dev);
110	int	error;
111	u_long	port_start;
112	struct resource *port_res;
113	int	port_rid;
114	int	drq;
115	int	irq;
116	config_data_t config_data;
117
118	aha->dev = dev;
119	/* Check isapnp ids */
120	if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
121		return (ENXIO);
122
123	port_rid = 0;
124	port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
125	    0, ~0, AHA_NREGS, RF_ACTIVE);
126
127	if (port_res == NULL)
128		return (ENXIO);
129
130	port_start = rman_get_start(port_res);
131	aha_alloc(aha, device_get_unit(dev), rman_get_bustag(port_res),
132	    rman_get_bushandle(port_res));
133
134	/* See if there is really a card present */
135	if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
136		aha_free(aha);
137		bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
138		return (ENXIO);
139	}
140
141	/*
142	 * Determine our IRQ, and DMA settings and
143	 * export them to the configuration system.
144	 */
145	error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
146	    (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
147
148	if (error != 0) {
149		device_printf(dev, "Could not determine IRQ or DMA "
150		    "settings for adapter at %#jx.  Failing probe\n",
151		    (uintmax_t)port_start);
152		aha_free(aha);
153		bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
154		    port_res);
155		return (ENXIO);
156	}
157
158	bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
159
160	switch (config_data.dma_chan) {
161	case DMA_CHAN_5:
162		drq = 5;
163		break;
164	case DMA_CHAN_6:
165		drq = 6;
166		break;
167	case DMA_CHAN_7:
168		drq = 7;
169		break;
170	default:
171		device_printf(dev, "Invalid DMA setting for adapter at %#jx.",
172		    (uintmax_t)port_start);
173		return (ENXIO);
174	}
175	error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
176	if (error)
177		return error;
178
179	irq = ffs(config_data.irq) + 8;
180	error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
181	return (error);
182}
183
184/*
185 * Attach all the sub-devices we can find
186 */
187static int
188aha_isa_attach(device_t dev)
189{
190	struct	aha_softc *aha = device_get_softc(dev);
191	bus_dma_filter_t *filter;
192	void		 *filter_arg;
193	bus_addr_t	 lowaddr;
194	void		 *ih;
195	int		 error = ENOMEM;
196	int		 aha_free_needed = 0;
197
198	aha->dev = dev;
199	aha->portrid = 0;
200	aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
201	    0, ~0, AHA_NREGS, RF_ACTIVE);
202	if (!aha->port) {
203		device_printf(dev, "Unable to allocate I/O ports\n");
204		goto fail;
205	}
206
207	aha->irqrid = 0;
208	aha->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &aha->irqrid,
209	    RF_ACTIVE);
210	if (!aha->irq) {
211		device_printf(dev, "Unable to allocate excluse use of irq\n");
212		goto fail;
213	}
214
215	aha->drqrid = 0;
216	aha->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &aha->drqrid,
217	    RF_ACTIVE);
218	if (!aha->drq) {
219		device_printf(dev, "Unable to allocate drq\n");
220		goto fail;
221	}
222
223#if 0				/* is the drq ever unset? */
224	if (dev->id_drq != -1)
225		isa_dmacascade(dev->id_drq);
226#endif
227	isa_dmacascade(rman_get_start(aha->drq));
228
229	/* Allocate our parent dmatag */
230	filter = NULL;
231	filter_arg = NULL;
232	lowaddr = BUS_SPACE_MAXADDR_24BIT;
233
234	if (bus_dma_tag_create(	/* parent	*/ NULL,
235				/* alignemnt	*/ 1,
236				/* boundary	*/ 0,
237				/* lowaddr	*/ lowaddr,
238				/* highaddr	*/ BUS_SPACE_MAXADDR,
239				/* filter	*/ filter,
240				/* filterarg	*/ filter_arg,
241				/* maxsize	*/ BUS_SPACE_MAXSIZE_24BIT,
242				/* nsegments	*/ ~0,
243				/* maxsegsz	*/ BUS_SPACE_MAXSIZE_24BIT,
244				/* flags	*/ 0,
245				/* lockfunc	*/ busdma_lock_mutex,
246				/* lockarg	*/ &Giant,
247				&aha->parent_dmat) != 0) {
248		device_printf(dev, "dma tag create failed.\n");
249		goto fail;
250        }
251
252	if (aha_init(aha)) {
253		device_printf(dev, "init failed\n");
254		goto fail;
255        }
256	/*
257	 * The 1542A and B look the same.  So we guess based on
258	 * the firmware revision.  It appears that only rev 0 is on
259	 * the A cards.
260	 */
261	if (aha->boardid <= BOARD_1542 && aha->fw_major == 0) {
262		device_printf(dev, "154xA may not work\n");
263		aha->ccb_sg_opcode = INITIATOR_SG_CCB;
264		aha->ccb_ccb_opcode = INITIATOR_CCB;
265	}
266	aha_free_needed++;
267
268	error = aha_attach(aha);
269	if (error) {
270		device_printf(dev, "attach failed\n");
271		goto fail;
272	}
273
274	error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY,
275	    NULL, aha_intr, aha, &ih);
276	if (error) {
277		device_printf(dev, "Unable to register interrupt handler\n");
278                goto fail;
279	}
280
281	return (0);
282fail: ;
283	bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
284	bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
285	bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
286	if (aha_free_needed)
287		aha_free(aha);
288	return (error);
289}
290
291static int
292aha_isa_detach(device_t dev)
293{
294	struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev);
295	int error;
296
297	error = bus_teardown_intr(dev, aha->irq, aha->ih);
298	if (error)
299		device_printf(dev, "failed to unregister interrupt handler\n");
300
301	bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
302	bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
303	bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
304
305	error = aha_detach(aha);
306	if (error) {
307		device_printf(dev, "detach failed\n");
308		return (error);
309	}
310	aha_free(aha);
311
312	return (0);
313}
314
315static void
316aha_isa_identify(driver_t *driver, device_t parent)
317{
318	int i;
319	bus_addr_t ioport;
320	struct aha_softc aha;
321	int rid;
322	struct resource *res;
323	device_t child;
324
325	/* Attempt to find an adapter */
326	for (i = 0; i < sizeof(aha_board_ports) / sizeof(aha_board_ports[0]);
327	    i++) {
328		bzero(&aha, sizeof(aha));
329		ioport = aha_board_ports[i];
330		/*
331		 * XXX Check to see if we have a hard-wired aha device at
332		 * XXX this port, if so, skip.  This should also cover the
333		 * XXX case where we are run multiple times due to, eg,
334		 * XXX kldload/kldunload.
335		 */
336		rid = 0;
337		res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
338		    ioport, ioport, AHA_NREGS, RF_ACTIVE);
339		if (res == NULL)
340			continue;
341		aha_alloc(&aha, -1, rman_get_bustag(res),
342		    rman_get_bushandle(res));
343		/* See if there is really a card present */
344		if (aha_probe(&aha) || aha_fetch_adapter_info(&aha))
345			goto not_this_one;
346		child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1);
347		bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS);
348		/*
349		 * Could query the board and set IRQ/DRQ, but probe does
350		 * that.
351		 */
352	not_this_one:;
353		bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
354		aha_free(&aha);
355	}
356}
357
358static device_method_t aha_isa_methods[] = {
359	/* Device interface */
360	DEVMETHOD(device_probe,		aha_isa_probe),
361	DEVMETHOD(device_attach,	aha_isa_attach),
362	DEVMETHOD(device_detach,	aha_isa_detach),
363	DEVMETHOD(device_identify,	aha_isa_identify),
364
365	{ 0, 0 }
366};
367
368static driver_t aha_isa_driver = {
369	"aha",
370	aha_isa_methods,
371	sizeof(struct aha_softc),
372};
373
374static devclass_t aha_devclass;
375
376DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
377MODULE_DEPEND(aha, isa, 1, 1, 1);
378