2 * Product specific probe and attach routines for:
5 * Derived from code written by:
7 * Copyright (c) 1998 Justin T. Gibbs
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions, and the following disclaimer,
15 * without modification, immediately at the beginning of the file.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * $FreeBSD: src/sys/dev/aha/aha_isa.c,v 1.17.2.1 2000/08/02 22:24:40 peter Exp $
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
38 #include <machine/bus_pio.h>
39 #include <machine/bus.h>
40 #include <machine/resource.h>
41 #include <sys/module.h>
45 #include <isa/isavar.h>
47 #include <dev/aha/ahareg.h>
49 #include <cam/scsi/scsi_all.h>
51 static struct isa_pnp_id aha_ids[] = {
52 {ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */
53 {AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1542 */
54 {AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */
55 {AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */
56 {ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */
61 * Check if the device can be found at the port given
62 * and if so, set it up ready for further work
63 * as an argument, takes the isa_device structure from
67 aha_isa_probe(device_t dev)
70 * find unit and check we have that many defined
72 struct aha_softc **sc = device_get_softc(dev);
73 struct aha_softc *aha;
77 u_long port_start, port_count;
78 struct resource *port_res;
85 /* Check isapnp ids */
86 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
89 error = bus_get_resource(dev, SYS_RES_IOPORT, 0,
90 &port_start, &port_count);
95 * Bound our board search if the user has
96 * specified an exact port.
98 aha_find_probe_range(port_start, &port_index, &max_port_index);
103 /* Attempt to find an adapter */
104 for (;port_index <= max_port_index; port_index++) {
105 config_data_t config_data;
109 ioport = aha_iop_from_bio(port_index);
111 error = bus_set_resource(dev, SYS_RES_IOPORT, 0,
117 port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
118 0, ~0, AHA_NREGS, RF_ACTIVE);
122 /* Allocate a softc for use during probing */
123 aha = aha_alloc(device_get_unit(dev), rman_get_bustag(port_res),
124 rman_get_bushandle(port_res));
127 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
132 /* See if there is really a card present */
133 if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
135 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
141 * Determine our IRQ, and DMA settings and
142 * export them to the configuration system.
144 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
145 (u_int8_t*)&config_data, sizeof(config_data),
146 DEFAULT_CMD_TIMEOUT);
149 printf("aha_isa_probe: Could not determine IRQ or DMA "
150 "settings for adapter at 0x%x. Failing probe\n",
153 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
158 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
160 switch (config_data.dma_chan) {
171 printf("aha_isa_probe: Invalid DMA setting "
172 "detected for adapter at 0x%x. "
173 "Failing probe\n", ioport);
176 error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
180 irq = ffs(config_data.irq) + 8;
181 error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
195 * Attach all the sub-devices we can find
198 aha_isa_attach(device_t dev)
200 struct aha_softc **sc = device_get_softc(dev);
201 struct aha_softc *aha;
202 bus_dma_filter_t *filter;
210 aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
211 0, ~0, AHA_NREGS, RF_ACTIVE);
213 device_printf(dev, "Unable to allocate I/O ports\n");
218 aha->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &aha->irqrid, 0, ~0, 1,
221 device_printf(dev, "Unable to allocate excluse use of irq\n");
222 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
227 aha->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &aha->drqrid, 0, ~0, 1,
230 device_printf(dev, "Unable to allocate drq\n");
231 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
232 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
236 #if 0 /* is the drq ever unset? */
237 if (dev->id_drq != -1)
238 isa_dmacascade(dev->id_drq);
240 isa_dmacascade(rman_get_start(aha->drq));
242 /* Allocate our parent dmatag */
245 lowaddr = BUS_SPACE_MAXADDR_24BIT;
247 if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
248 lowaddr, /*highaddr*/BUS_SPACE_MAXADDR,
250 /*maxsize*/BUS_SPACE_MAXSIZE_24BIT,
251 /*nsegments*/BUS_SPACE_UNRESTRICTED,
252 /*maxsegsz*/BUS_SPACE_MAXSIZE_24BIT,
253 /*flags*/0, &aha->parent_dmat) != 0) {
255 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
256 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
257 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
262 device_printf(dev, "init failed\n");
264 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
265 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
266 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
270 error = aha_attach(aha);
272 device_printf(dev, "attach failed\n");
274 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
275 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
276 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
280 error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM, aha_intr, aha,
283 device_printf(dev, "Unable to register interrupt handler\n");
285 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
286 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
287 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
295 aha_isa_detach(device_t dev)
297 struct aha_softc *aha = *(struct aha_softc **) device_get_softc(dev);
300 error = bus_teardown_intr(dev, aha->irq, aha->ih);
302 device_printf(dev, "failed to unregister interrupt handler\n");
305 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
306 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
307 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
309 error = aha_detach(aha);
311 device_printf(dev, "detach failed\n");
320 aha_isa_identify(driver_t *driver, device_t parent)
324 static device_method_t aha_isa_methods[] = {
325 /* Device interface */
326 DEVMETHOD(device_probe, aha_isa_probe),
327 DEVMETHOD(device_attach, aha_isa_attach),
328 DEVMETHOD(device_detach, aha_isa_detach),
329 DEVMETHOD(device_identify, aha_isa_identify),
334 static driver_t aha_isa_driver = {
337 sizeof(struct aha_softc*),
340 static devclass_t aha_devclass;
342 DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);