diff options
Diffstat (limited to 'sys/dev/aic7xxx/ahc_eisa.c')
| -rw-r--r-- | sys/dev/aic7xxx/ahc_eisa.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/sys/dev/aic7xxx/ahc_eisa.c b/sys/dev/aic7xxx/ahc_eisa.c new file mode 100644 index 0000000..9ccd688 --- /dev/null +++ b/sys/dev/aic7xxx/ahc_eisa.c @@ -0,0 +1,213 @@ +/* + * FreeBSD, EISA product support functions + * + * + * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice immediately at the beginning of the file, without modification, + * this list of conditions, and the following disclaimer. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/ahc_eisa.c#9 $ + * + * $FreeBSD$ + */ + +#include <dev/aic7xxx/aic7xxx_osm.h> + +#include <dev/eisa/eisaconf.h> + +static int +aic7770_probe(device_t dev) +{ + struct aic7770_identity *entry; + struct resource *regs; + uint32_t iobase; + bus_space_handle_t bsh; + bus_space_tag_t tag; + u_int irq; + u_int intdef; + u_int hcntrl; + int shared; + int rid; + int error; + + entry = aic7770_find_device(eisa_get_id(dev)); + if (entry == NULL) + return (ENXIO); + device_set_desc(dev, entry->name); + + iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + AHC_EISA_SLOT_OFFSET; + + eisa_add_iospace(dev, iobase, AHC_EISA_IOSIZE, RESVADDR_NONE); + + rid = 0; + regs = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, + 0, ~0, 1, RF_ACTIVE); + if (regs == NULL) { + device_printf(dev, "Unable to map I/O space?!\n"); + return ENOMEM; + } + + tag = rman_get_bustag(regs); + bsh = rman_get_bushandle(regs); + error = 0; + + /* Pause the card preseving the IRQ type */ + hcntrl = bus_space_read_1(tag, bsh, HCNTRL) & IRQMS; + bus_space_write_1(tag, bsh, HCNTRL, hcntrl | PAUSE); + while ((bus_space_read_1(tag, bsh, HCNTRL) & PAUSE) == 0) + ; + + /* Make sure we have a valid interrupt vector */ + intdef = bus_space_read_1(tag, bsh, INTDEF); + shared = (intdef & EDGE_TRIG) ? EISA_TRIGGER_EDGE : EISA_TRIGGER_LEVEL; + irq = intdef & VECTOR; + switch (irq) { + case 9: + case 10: + case 11: + case 12: + case 14: + case 15: + break; + default: + printf("aic7770 at slot %d: illegal irq setting %d\n", + eisa_get_slot(dev), intdef); + error = ENXIO; + } + + if (error == 0) + eisa_add_intr(dev, irq, shared); + + bus_release_resource(dev, SYS_RES_IOPORT, rid, regs); + return (error); +} + +static int +aic7770_attach(device_t dev) +{ + struct aic7770_identity *entry; + struct ahc_softc *ahc; + char *name; + int error; + + entry = aic7770_find_device(eisa_get_id(dev)); + if (entry == NULL) + return (ENXIO); + + /* + * Allocate a softc for this card and + * set it up for attachment by our + * common detect routine. + */ + name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT); + if (name == NULL) + return (ENOMEM); + strcpy(name, device_get_nameunit(dev)); + ahc = ahc_alloc(dev, name); + if (ahc == NULL) + return (ENOMEM); + + ahc_set_unit(ahc, device_get_unit(dev)); + + /* Allocate a dmatag for our SCB DMA maps */ + /* XXX Should be a child of the PCI bus dma tag */ + error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, + /*boundary*/0, + /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, + /*highaddr*/BUS_SPACE_MAXADDR, + /*filter*/NULL, /*filterarg*/NULL, + /*maxsize*/MAXBSIZE, /*nsegments*/AHC_NSEG, + /*maxsegsz*/AHC_MAXTRANSFER_SIZE, + /*flags*/BUS_DMA_ALLOCNOW, + &ahc->parent_dmat); + + if (error != 0) { + printf("ahc_eisa_attach: Could not allocate DMA tag " + "- error %d\n", error); + ahc_free(ahc); + return (ENOMEM); + } + ahc->dev_softc = dev; + error = aic7770_config(ahc, entry, /*unused ioport arg*/0); + if (error != 0) { + ahc_free(ahc); + return (error); + } + + ahc_attach(ahc); + return (0); +} + +int +aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg) +{ + struct resource *regs; + int rid; + + rid = 0; + regs = bus_alloc_resource(ahc->dev_softc, SYS_RES_IOPORT, + &rid, 0, ~0, 1, RF_ACTIVE); + if (regs == NULL) { + device_printf(ahc->dev_softc, "Unable to map I/O space?!\n"); + return ENOMEM; + } + ahc->platform_data->regs_res_type = SYS_RES_IOPORT; + ahc->platform_data->regs_res_id = rid, + ahc->platform_data->regs = regs; + ahc->tag = rman_get_bustag(regs); + ahc->bsh = rman_get_bushandle(regs); + return (0); +} + +int +aic7770_map_int(struct ahc_softc *ahc, int irq) +{ + int zero; + + zero = 0; + ahc->platform_data->irq = + bus_alloc_resource(ahc->dev_softc, SYS_RES_IRQ, &zero, + 0, ~0, 1, RF_ACTIVE); + if (ahc->platform_data->irq == NULL) + return (ENOMEM); + ahc->platform_data->irq_res_type = SYS_RES_IRQ; + return (ahc_map_int(ahc)); +} + +static device_method_t ahc_eisa_device_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, aic7770_probe), + DEVMETHOD(device_attach, aic7770_attach), + DEVMETHOD(device_detach, ahc_detach), + { 0, 0 } +}; + +static driver_t ahc_eisa_driver = { + "ahc", + ahc_eisa_device_methods, + sizeof(struct ahc_softc) +}; + +DRIVER_MODULE(ahc_eisa, eisa, ahc_eisa_driver, ahc_devclass, 0, 0); +MODULE_DEPEND(ahc_eisa, ahc, 1, 1, 1); +MODULE_VERSION(ahc_eisa, 1); |
