diff options
Diffstat (limited to 'sys/isa/orm.c')
| -rw-r--r-- | sys/isa/orm.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/sys/isa/orm.c b/sys/isa/orm.c deleted file mode 100644 index f25312f..0000000 --- a/sys/isa/orm.c +++ /dev/null @@ -1,185 +0,0 @@ -/*- - * Copyright (c) 2000 Nikolai Saoukh - * 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, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 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. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * Driver to take care of holes in ISA I/O memory occupied - * by option rom(s) - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/socket.h> - -#include <sys/module.h> -#include <sys/bus.h> - -#include <machine/bus.h> -#include <machine/resource.h> -#include <sys/rman.h> - -#include <isa/isavar.h> -#include <isa/pnpvar.h> - -#define IOMEM_START 0x0a0000 -#define IOMEM_STEP 0x000800 -#define IOMEM_END 0x100000 - -#define ORM_ID 0x00004d3e - -static struct isa_pnp_id orm_ids[] = { - { ORM_ID, NULL }, /* ORM0000 */ - { 0, NULL }, -}; - -#define MAX_ROMS 16 - -struct orm_softc { - int rnum; - int rid[MAX_ROMS]; - struct resource *res[MAX_ROMS]; -}; - -static int -orm_probe(device_t dev) -{ - return (ISA_PNP_PROBE(device_get_parent(dev), dev, orm_ids)); -} - -static int -orm_attach(device_t dev) -{ - return (0); -} - -static void -orm_identify(driver_t* driver, device_t parent) -{ - bus_space_handle_t bh; - bus_space_tag_t bt; - device_t child; - u_int32_t chunk = IOMEM_START; - struct resource *res; - int rid; - u_int32_t rom_size; - struct orm_softc *sc; - u_int8_t buf[3]; - - child = BUS_ADD_CHILD(parent, ISA_ORDER_SENSITIVE, "orm", -1); - device_set_driver(child, driver); - isa_set_logicalid(child, ORM_ID); - isa_set_vendorid(child, ORM_ID); - sc = device_get_softc(child); - sc->rnum = 0; - while (chunk < IOMEM_END) { - bus_set_resource(child, SYS_RES_MEMORY, sc->rnum, chunk, - IOMEM_STEP); - rid = sc->rnum; - res = bus_alloc_resource_any(child, SYS_RES_MEMORY, &rid, - RF_ACTIVE); - if (res == NULL) { - bus_delete_resource(child, SYS_RES_MEMORY, sc->rnum); - chunk += IOMEM_STEP; - continue; - } - bt = rman_get_bustag(res); - bh = rman_get_bushandle(res); - bus_space_read_region_1(bt, bh, 0, buf, sizeof(buf)); - - /* - * We need to release and delete the resource since we're - * changing its size, or the rom isn't there. There - * is a checksum field in the ROM to prevent false - * positives. However, some common hardware (IBM thinkpads) - * neglects to put a valid checksum in the ROM, so we do - * not double check the checksum here. On the ISA bus - * areas that have no hardware read back as 0xff, so the - * tests to see if we have 0x55 followed by 0xaa are - * generally sufficient. - */ - bus_release_resource(child, SYS_RES_MEMORY, rid, res); - bus_delete_resource(child, SYS_RES_MEMORY, sc->rnum); - if (buf[0] != 0x55 || buf[1] != 0xAA || (buf[2] & 0x03) != 0) { - chunk += IOMEM_STEP; - continue; - } - rom_size = buf[2] << 9; - bus_set_resource(child, SYS_RES_MEMORY, sc->rnum, chunk, - rom_size); - rid = sc->rnum; - res = bus_alloc_resource_any(child, SYS_RES_MEMORY, &rid, 0); - if (res == NULL) { - bus_delete_resource(child, SYS_RES_MEMORY, sc->rnum); - chunk += IOMEM_STEP; - continue; - } - sc->rid[sc->rnum] = rid; - sc->res[sc->rnum] = res; - sc->rnum++; - chunk += rom_size; - } - - if (sc->rnum == 0) - device_delete_child(parent, child); - else if (sc->rnum == 1) - device_set_desc(child, "ISA Option ROM"); - else - device_set_desc(child, "ISA Option ROMs"); -} - -static int -orm_detach(device_t dev) -{ - int i; - struct orm_softc *sc = device_get_softc(dev); - - for (i = 0; i < sc->rnum; i++) - bus_release_resource(dev, SYS_RES_MEMORY, sc->rid[i], - sc->res[i]); - return (0); -} - -static device_method_t orm_methods[] = { - /* Device interface */ - DEVMETHOD(device_identify, orm_identify), - DEVMETHOD(device_probe, orm_probe), - DEVMETHOD(device_attach, orm_attach), - DEVMETHOD(device_detach, orm_detach), - { 0, 0 } -}; - -static driver_t orm_driver = { - "orm", - orm_methods, - sizeof (struct orm_softc) -}; - -static devclass_t orm_devclass; - -DRIVER_MODULE(orm, isa, orm_driver, orm_devclass, 0, 0); |
