aha_isa.c revision 140467 
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 140467 2005-01-19 06:54:10Z imp $");
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_pio.h>
67#include <machine/bus.h>
68#include <machine/resource.h>
69#include <sys/module.h>
70#include <sys/bus.h>
71#include <sys/rman.h>
72
73#include <isa/isavar.h>
74
75#include <dev/aha/ahareg.h>
76
77#include <cam/scsi/scsi_all.h>
78
79static struct isa_pnp_id aha_ids[] = {
80	{ADP0100_PNP,		"Adaptec 1540/1542 ISA SCSI"},	/* ADP0100 */
81	{AHA1540_PNP,		"Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */
82	{AHA1542_PNP,		"Adaptec 1542/aha-1535"},	/* ADP1542 */
83	{AHA1542_PNPCOMPAT,	"Adaptec 1542 compatible"},	/* PNP00A0 */
84	{ICU0091_PNP,		"Adaptec AHA-1540/1542 SCSI"},	/* ICU0091 */
85	{0}
86};
87
88/*
89 * I/O ports listed in the order enumerated by the card for certain op codes.
90 */
91static bus_addr_t aha_board_ports[] =
92{
93	0x330,
94	0x334,
95	0x230,
96	0x234,
97	0x130,
98	0x134
99};
100
101/*
102 * Check if the device can be found at the port given
103 */
104static int
105aha_isa_probe(device_t dev)
106{
107	/*
108	 * find unit and check we have that many defined
109	 */
110	struct	aha_softc *aha = device_get_softc(dev);
111	int	error;
112	u_long	port_start;
113	struct resource *port_res;
114	int	port_rid;
115	int	drq;
116	int	irq;
117	config_data_t config_data;
118
119	aha->dev = dev;
120	/* Check isapnp ids */
121	if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
122		return (ENXIO);
123
124	port_rid = 0;
125	port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
126	    0, ~0, AHA_NREGS, RF_ACTIVE);
127
128	if (port_res == NULL)
129		return (ENXIO);
130
131	port_start = rman_get_start(port_res);
132	aha_alloc(aha, device_get_unit(dev), rman_get_bustag(port_res),
133	    rman_get_bushandle(port_res));
134
135	/* See if there is really a card present */
136	if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
137		aha_free(aha);
138		bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
139		return (ENXIO);
140	}
141
142	/*
143	 * Determine our IRQ, and DMA settings and
144	 * export them to the configuration system.
145	 */
146	error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
147	    (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
148
149	if (error != 0) {
150		device_printf(dev, "Could not determine IRQ or DMA "
151		    "settings for adapter at %#jx.  Failing probe\n",
152		    (uintmax_t)port_start);
153		aha_free(aha);
154		bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
155		    port_res);
156		return (ENXIO);
157	}
158
159	bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
160
161	switch (config_data.dma_chan) {
162	case DMA_CHAN_5:
163		drq = 5;
164		break;
165	case DMA_CHAN_6:
166		drq = 6;
167		break;
168	case DMA_CHAN_7:
169		drq = 7;
170		break;
171	default:
172		device_printf(dev, "Invalid DMA setting for adapter at %#jx.",
173		    (uintmax_t)port_start);
174		return (ENXIO);
175	}
176	error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
177	if (error)
178		return error;
179
180	irq = ffs(config_data.irq) + 8;
181	error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
182	return (error);
183}
184
185/*
186 * Attach all the sub-devices we can find
187 */
188static int
189aha_isa_attach(device_t dev)
190{
191	struct	aha_softc *aha = device_get_softc(dev);
192	bus_dma_filter_t *filter;
193	void		 *filter_arg;
194	bus_addr_t	 lowaddr;
195	void		 *ih;
196	int		 error = ENOMEM;
197	int		 aha_free_needed = 0;
198
199	aha->dev = dev;
200	aha->portrid = 0;
201	aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
202	    0, ~0, AHA_NREGS, RF_ACTIVE);
203	if (!aha->port) {
204		device_printf(dev, "Unable to allocate I/O ports\n");
205		goto fail;
206	}
207
208	aha->irqrid = 0;
209	aha->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &aha->irqrid,
210	    RF_ACTIVE);
211	if (!aha->irq) {
212		device_printf(dev, "Unable to allocate excluse use of irq\n");
213		goto fail;
214	}
215
216	aha->drqrid = 0;
217	aha->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &aha->drqrid,
218	    RF_ACTIVE);
219	if (!aha->drq) {
220		device_printf(dev, "Unable to allocate drq\n");
221		goto fail;
222	}
223
224#if 0				/* is the drq ever unset? */
225	if (dev->id_drq != -1)
226		isa_dmacascade(dev->id_drq);
227#endif
228	isa_dmacascade(rman_get_start(aha->drq));
229
230	/* Allocate our parent dmatag */
231	filter = NULL;
232	filter_arg = NULL;
233	lowaddr = BUS_SPACE_MAXADDR_24BIT;
234
235	if (bus_dma_tag_create(	/* parent	*/ NULL,
236				/* alignemnt	*/ 1,
237				/* boundary	*/ 0,
238				/* lowaddr	*/ lowaddr,
239				/* highaddr	*/ BUS_SPACE_MAXADDR,
240				/* filter	*/ filter,
241				/* filterarg	*/ filter_arg,
242				/* maxsize	*/ BUS_SPACE_MAXSIZE_24BIT,
243				/* nsegments	*/ ~0,
244				/* maxsegsz	*/ BUS_SPACE_MAXSIZE_24BIT,
245				/* flags	*/ 0,
246				/* lockfunc	*/ busdma_lock_mutex,
247				/* lockarg	*/ &Giant,
248				&aha->parent_dmat) != 0) {
249		device_printf(dev, "dma tag create failed.\n");
250		goto fail;
251        }
252
253	if (aha_init(aha)) {
254		device_printf(dev, "init failed\n");
255		goto fail;
256        }
257	/*
258	 * The 1542A and B look the same.  So we guess based on
259	 * the firmware revision.  It appears that only rev 0 is on
260	 * the A cards.
261	 */
262	if (aha->boardid <= BOARD_1542 && aha->fw_major == 0) {
263		device_printf(dev, "154xA may not work\n");
264		aha->ccb_sg_opcode = INITIATOR_SG_CCB;
265		aha->ccb_ccb_opcode = INITIATOR_CCB;
266	}
267	aha_free_needed++;
268
269	error = aha_attach(aha);
270	if (error) {
271		device_printf(dev, "attach failed\n");
272		goto fail;
273	}
274
275	error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY,
276	    aha_intr, aha, &ih);
277	if (error) {
278		device_printf(dev, "Unable to register interrupt handler\n");
279                goto fail;
280	}
281
282	return (0);
283fail: ;
284	bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
285	bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
286	bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
287	if (aha_free_needed)
288		aha_free(aha);
289	return (error);
290}
291
292static int
293aha_isa_detach(device_t dev)
294{
295	struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev);
296	int error;
297
298	error = bus_teardown_intr(dev, aha->irq, aha->ih);
299	if (error)
300		device_printf(dev, "failed to unregister interrupt handler\n");
301
302	bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
303	bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
304	bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
305
306	error = aha_detach(aha);
307	if (error) {
308		device_printf(dev, "detach failed\n");
309		return (error);
310	}
311	aha_free(aha);
312
313	return (0);
314}
315
316static void
317aha_isa_identify(driver_t *driver, device_t parent)
318{
319	int i;
320	bus_addr_t ioport;
321	struct aha_softc aha;
322	int rid;
323	struct resource *res;
324	device_t child;
325
326	/* Attempt to find an adapter */
327	for (i = 0; i < sizeof(aha_board_ports) / sizeof(aha_board_ports[0]);
328	    i++) {
329		bzero(&aha, sizeof(aha));
330		ioport = aha_board_ports[i];
331		/*
332		 * XXX Check to see if we have a hard-wired aha device at
333		 * XXX this port, if so, skip.  This should also cover the
334		 * XXX case where we are run multiple times due to, eg,
335		 * XXX kldload/kldunload.
336		 */
337		rid = 0;
338		res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
339		    ioport, ioport, AHA_NREGS, RF_ACTIVE);
340		if (res == NULL)
341			continue;
342		aha_alloc(&aha, -1, rman_get_bustag(res),
343		    rman_get_bushandle(res));
344		/* See if there is really a card present */
345		if (aha_probe(&aha) || aha_fetch_adapter_info(&aha))
346			goto not_this_one;
347		child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1);
348		bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS);
349		/*
350		 * Could query the board and set IRQ/DRQ, but probe does
351		 * that.
352		 */
353	not_this_one:;
354		bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
355		aha_free(&aha);
356	}
357}
358
359static device_method_t aha_isa_methods[] = {
360	/* Device interface */
361	DEVMETHOD(device_probe,		aha_isa_probe),
362	DEVMETHOD(device_attach,	aha_isa_attach),
363	DEVMETHOD(device_detach,	aha_isa_detach),
364	DEVMETHOD(device_identify,	aha_isa_identify),
365
366	{ 0, 0 }
367};
368
369static driver_t aha_isa_driver = {
370	"aha",
371	aha_isa_methods,
372	sizeof(struct aha_softc),
373};
374
375static devclass_t aha_devclass;
376
377DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
378