348 lines
9.2 KiB
C
348 lines
9.2 KiB
C
/*
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* Product specific probe and attach routines for:
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* Adaptec 154x.
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*
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* Derived from code written by:
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*
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* Copyright (c) 1998 Justin T. Gibbs
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <isa/isavar.h>
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#include <dev/aha/ahareg.h>
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#include <cam/scsi/scsi_all.h>
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static struct isa_pnp_id aha_ids[] = {
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{ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */
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{AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1542 */
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{AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */
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{AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */
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{ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */
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{0}
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};
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/*
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* Check if the device can be found at the port given
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* and if so, set it up ready for further work
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* as an argument, takes the isa_device structure from
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* autoconf.c
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*/
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static int
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aha_isa_probe(device_t dev)
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{
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/*
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* find unit and check we have that many defined
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*/
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struct aha_softc **sc = device_get_softc(dev);
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struct aha_softc *aha;
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int port_index;
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int max_port_index;
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int error;
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u_long port_start, port_count;
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struct resource *port_res;
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int port_rid;
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int drq;
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int irq;
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aha = NULL;
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/* Check isapnp ids */
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if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
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return (ENXIO);
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error = bus_get_resource(dev, SYS_RES_IOPORT, 0,
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&port_start, &port_count);
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if (error != 0)
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port_start = 0;
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/*
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* Bound our board search if the user has
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* specified an exact port.
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*/
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aha_find_probe_range(port_start, &port_index, &max_port_index);
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if (port_index < 0)
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return ENXIO;
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/* Attempt to find an adapter */
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for (;port_index <= max_port_index; port_index++) {
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config_data_t config_data;
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u_int ioport;
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int error;
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ioport = aha_iop_from_bio(port_index);
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error = bus_set_resource(dev, SYS_RES_IOPORT, 0,
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ioport, AHA_NREGS);
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if (error)
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return error;
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port_rid = 0;
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port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
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0, ~0, AHA_NREGS, RF_ACTIVE);
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if (!port_res)
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continue;
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/* Allocate a softc for use during probing */
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aha = aha_alloc(device_get_unit(dev), rman_get_bustag(port_res),
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rman_get_bushandle(port_res));
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if (aha == NULL) {
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bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
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port_res);
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break;
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}
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/* See if there is really a card present */
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if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
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aha_free(aha);
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bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
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port_res);
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continue;
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}
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/*
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* Determine our IRQ, and DMA settings and
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* export them to the configuration system.
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*/
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error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
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(u_int8_t*)&config_data, sizeof(config_data),
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DEFAULT_CMD_TIMEOUT);
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if (error != 0) {
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printf("aha_isa_probe: Could not determine IRQ or DMA "
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"settings for adapter at 0x%x. Failing probe\n",
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ioport);
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aha_free(aha);
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bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
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port_res);
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continue;
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}
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bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res);
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switch (config_data.dma_chan) {
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case DMA_CHAN_5:
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drq = 5;
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break;
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case DMA_CHAN_6:
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drq = 6;
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break;
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case DMA_CHAN_7:
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drq = 7;
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break;
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default:
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printf("aha_isa_probe: Invalid DMA setting "
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"detected for adapter at 0x%x. "
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"Failing probe\n", ioport);
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return (ENXIO);
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}
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error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
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if (error)
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return error;
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irq = ffs(config_data.irq) + 8;
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error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
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if (error)
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return error;
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*sc = aha;
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aha_unit++;
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return (0);
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}
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return (ENXIO);
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}
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/*
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* Attach all the sub-devices we can find
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*/
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static int
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aha_isa_attach(device_t dev)
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{
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struct aha_softc **sc = device_get_softc(dev);
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struct aha_softc *aha;
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bus_dma_filter_t *filter;
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void *filter_arg;
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bus_addr_t lowaddr;
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void *ih;
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int error;
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aha = *sc;
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aha->portrid = 0;
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aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
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0, ~0, AHA_NREGS, RF_ACTIVE);
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if (!aha->port) {
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device_printf(dev, "Unable to allocate I/O ports\n");
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return ENOMEM;
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}
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aha->irqrid = 0;
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aha->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &aha->irqrid, 0, ~0, 1,
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RF_ACTIVE);
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if (!aha->irq) {
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device_printf(dev, "Unable to allocate excluse use of irq\n");
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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return ENOMEM;
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}
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aha->drqrid = 0;
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aha->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &aha->drqrid, 0, ~0, 1,
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RF_ACTIVE);
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if (!aha->drq) {
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device_printf(dev, "Unable to allocate drq\n");
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
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return ENOMEM;
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}
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#if 0 /* is the drq ever unset? */
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if (dev->id_drq != -1)
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isa_dmacascade(dev->id_drq);
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#endif
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isa_dmacascade(rman_get_start(aha->drq));
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/* Allocate our parent dmatag */
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filter = NULL;
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filter_arg = NULL;
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lowaddr = BUS_SPACE_MAXADDR_24BIT;
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if (bus_dma_tag_create( /* parent */ NULL,
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/* alignemnt */ 1,
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/* boundary */ 0,
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/* lowaddr */ lowaddr,
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/* highaddr */ BUS_SPACE_MAXADDR,
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/* filter */ filter,
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/* filterarg */ filter_arg,
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/* maxsize */ BUS_SPACE_MAXSIZE_24BIT,
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/* nsegments */ ~0,
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/* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
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/* flags */ 0,
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&aha->parent_dmat) != 0) {
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aha_free(aha);
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
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bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
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return (ENOMEM);
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}
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if (aha_init(aha)) {
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device_printf(dev, "init failed\n");
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aha_free(aha);
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
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bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
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return (ENOMEM);
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}
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error = aha_attach(aha);
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if (error) {
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device_printf(dev, "attach failed\n");
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aha_free(aha);
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
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bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
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return (error);
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}
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error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY, aha_intr, aha,
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&ih);
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if (error) {
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device_printf(dev, "Unable to register interrupt handler\n");
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aha_free(aha);
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
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bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
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return (error);
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}
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return (0);
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}
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static int
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aha_isa_detach(device_t dev)
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{
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struct aha_softc *aha = *(struct aha_softc **) device_get_softc(dev);
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int error;
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error = bus_teardown_intr(dev, aha->irq, aha->ih);
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if (error) {
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device_printf(dev, "failed to unregister interrupt handler\n");
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}
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bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port);
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bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq);
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bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq);
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error = aha_detach(aha);
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if (error) {
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device_printf(dev, "detach failed\n");
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return (error);
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}
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aha_free(aha);
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return (0);
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}
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static void
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aha_isa_identify(driver_t *driver, device_t parent)
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{
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}
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static device_method_t aha_isa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, aha_isa_probe),
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DEVMETHOD(device_attach, aha_isa_attach),
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DEVMETHOD(device_detach, aha_isa_detach),
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DEVMETHOD(device_identify, aha_isa_identify),
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{ 0, 0 }
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};
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static driver_t aha_isa_driver = {
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"aha",
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aha_isa_methods,
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sizeof(struct aha_softc*),
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};
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static devclass_t aha_devclass;
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DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
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