diff options
Diffstat (limited to 'sys/dev/ct/ct_isa.c')
| -rw-r--r-- | sys/dev/ct/ct_isa.c | 408 |
1 files changed, 408 insertions, 0 deletions
diff --git a/sys/dev/ct/ct_isa.c b/sys/dev/ct/ct_isa.c new file mode 100644 index 0000000..af63f81 --- /dev/null +++ b/sys/dev/ct/ct_isa.c @@ -0,0 +1,408 @@ +/* $FreeBSD$ */ +/* $NecBSD: ct_isa.c,v 1.6 1999/07/26 06:32:01 honda Exp $ */ +/* $NetBSD$ */ + +/* + * [NetBSD for NEC PC-98 series] + * Copyright (c) 1995, 1996, 1997, 1998 + * NetBSD/pc98 porting staff. 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. + * 3. 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 ``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 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. + */ + +#define SCSIBUS_RESCAN + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/bio.h> +#include <sys/buf.h> +#include <sys/queue.h> +#include <sys/malloc.h> +#include <sys/device_port.h> +#include <sys/errno.h> + +#include <vm/vm.h> + +#ifdef __NetBSD__ +#include <machine/bus.h> +#include <machine/intr.h> + +#include <dev/scsipi/scsi_all.h> +#include <dev/scsipi/scsipi_all.h> +#include <dev/scsipi/scsiconf.h> +#include <dev/scsipi/scsi_disk.h> + +#include <dev/isa/isareg.h> +#include <dev/isa/isavar.h> +#include <dev/isa/isadmavar.h> + +#include <machine/dvcfg.h> +#include <machine/physio_proc.h> +#include <machine/syspmgr.h> + +#include <i386/Cbus/dev/scsi_low.h> + +#include <dev/ic/wd33c93reg.h> +#include <i386/Cbus/dev/ct/ctvar.h> +#include <i386/Cbus/dev/ct/bshwvar.h> +#endif /* __NetBSD__ */ + +#ifdef __FreeBSD__ +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/bus.h> +#include <sys/rman.h> +#include <machine/md_var.h> + +#include <pc98/pc98/pc98.h> +#include <isa/isavar.h> + +#include <machine/dvcfg.h> +#include <machine/physio_proc.h> + +#include <cam/scsi/scsi_low.h> + +#include <dev/ic/wd33c93reg.h> +#include <dev/ct/ctvar.h> +#include <dev/ct/bshwvar.h> +#endif /* __FreeBSD__ */ + +#define BSHW_IOSZ 0x08 +#define BSHW_IOBASE 0xcc0 +#define BSHW_MEMSZ (PAGE_SIZE * 2) + +static int ct_isa_match(device_t); +static int ct_isa_attach(device_t); +static int ct_space_map(device_t, struct bshw *, + struct resource **, struct resource **); +static void ct_space_unmap(device_t, struct ct_softc *); +static struct bshw *ct_find_hw(device_t); +static void ct_dmamap(void *, bus_dma_segment_t *, int, int); +static void ct_isa_bus_access_weight(struct ct_bus_access_handle *); +static void ct_isa_dmasync_before(struct ct_softc *); +static void ct_isa_dmasync_after(struct ct_softc *); + +struct ct_isa_softc { + struct ct_softc sc_ct; + struct bshw_softc sc_bshw; +}; + +static struct isa_pnp_id ct_pnp_ids[] = { + { 0x0100e7b1, "Logitec LHA-301" }, + { 0x110154dc, "I-O DATA SC-98III" }, + { 0x4120acb4, "MELCO IFC-NN" }, + { 0, NULL } +}; + +static device_method_t ct_isa_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, ct_isa_match), + DEVMETHOD(device_attach, ct_isa_attach), + { 0, 0 } +}; + +static driver_t ct_isa_driver = { + "ct", ct_isa_methods, sizeof(struct ct_isa_softc), +}; + +static devclass_t ct_devclass; + +DRIVER_MODULE(ct, isa, ct_isa_driver, ct_devclass, 0, 0); + +static int +ct_isa_match(device_t dev) +{ + struct bshw *hw; + struct resource *port_res, *mem_res; + struct ct_bus_access_handle ch; + int rv; + + if (ISA_PNP_PROBE(device_get_parent(dev), dev, ct_pnp_ids) == ENXIO) + return ENXIO; + + if (isa_get_port(dev) == -1) + bus_set_resource(dev, SYS_RES_IOPORT, 0, + BSHW_IOBASE, BSHW_IOSZ); + + if ((hw = ct_find_hw(dev)) == NULL) + return ENXIO; + if (ct_space_map(dev, hw, &port_res, &mem_res) != 0) + return ENXIO; + + bzero(&ch, sizeof(ch)); + ch.ch_iot = rman_get_bustag(port_res); + ch.ch_ioh = rman_get_bushandle(port_res), + ch.ch_bus_weight = ct_isa_bus_access_weight; + + rv = ctprobesubr(&ch, 0, BSHW_DEFAULT_HOSTID, + BSHW_DEFAULT_CHIPCLK, NULL); + if (rv != 0) + { + struct bshw_softc bshw_tab; + struct bshw_softc *bs = &bshw_tab; + + memset(bs, 0, sizeof(*bs)); + bshw_read_settings(&ch, bs); + bus_set_resource(dev, SYS_RES_IRQ, 0, bs->sc_irq, 1); + bus_set_resource(dev, SYS_RES_DRQ, 0, bs->sc_drq, 1); + } + + bus_release_resource(dev, SYS_RES_IOPORT, 0, port_res); + if (mem_res != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, 0, mem_res); + + if (rv != 0) + return 0; + return ENXIO; +} + +static int +ct_isa_attach(device_t dev) +{ + struct ct_isa_softc *pct = device_get_softc(dev); + struct ct_softc *ct = &pct->sc_ct; + struct ct_bus_access_handle *chp = &ct->sc_ch; + struct scsi_low_softc *slp = &ct->sc_sclow; + struct bshw_softc *bs = &pct->sc_bshw; + struct bshw *hw; + int irq_rid, drq_rid, chiprev; + u_int8_t *vaddr; + bus_addr_t addr; + intrmask_t s; + + hw = ct_find_hw(dev); + if (ct_space_map(dev, hw, &ct->port_res, &ct->mem_res) != 0) { + device_printf(dev, "bus io mem map failed\n"); + return ENXIO; + } + + bzero(chp, sizeof(*chp)); + chp->ch_iot = rman_get_bustag(ct->port_res); + chp->ch_ioh = rman_get_bushandle(ct->port_res); + if (ct->mem_res) { + chp->ch_memt = rman_get_bustag(ct->mem_res); + chp->ch_memh = rman_get_bushandle(ct->mem_res); + } + chp->ch_bus_weight = ct_isa_bus_access_weight; + + irq_rid = 0; + ct->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &irq_rid, 0, ~0, + 1, RF_ACTIVE); + drq_rid = 0; + ct->drq_res = bus_alloc_resource(dev, SYS_RES_DRQ, &drq_rid, 0, ~0, + 1, RF_ACTIVE); + if (ct->irq_res == NULL || ct->drq_res == NULL) { + ct_space_unmap(dev, ct); + return ENXIO; + } + + if (ctprobesubr(chp, 0, BSHW_DEFAULT_HOSTID, + BSHW_DEFAULT_CHIPCLK, &chiprev) == 0) + { + device_printf(dev, "hardware missing\n"); + ct_space_unmap(dev, ct); + return ENXIO; + } + + /* setup DMA map */ + if (bus_dma_tag_create(NULL, 1, 0, + BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR, + NULL, NULL, MAXBSIZE, 1, + BUS_SPACE_MAXSIZE_32BIT, + BUS_DMA_ALLOCNOW, &ct->sc_dmat) != 0) { + device_printf(dev, "can't set up ISA DMA map\n"); + ct_space_unmap(dev, ct); + return ENXIO; + } + + if (bus_dmamem_alloc(ct->sc_dmat, (void **)&vaddr, BUS_DMA_NOWAIT, + &ct->sc_dmamapt) != 0) { + device_printf(dev, "can't set up ISA DMA map\n"); + ct_space_unmap(dev, ct); + return ENXIO; + } + + bus_dmamap_load(ct->sc_dmat, ct->sc_dmamapt, vaddr, MAXBSIZE, + ct_dmamap, &addr, 0); + + /* setup machdep softc */ + bs->sc_hw = hw; + bs->sc_io_control = 0; + bs->sc_bounce_phys = (u_int8_t *)addr; + bs->sc_bounce_addr = vaddr; + bs->sc_bounce_size = MAXBSIZE; + bs->sc_minphys = (1 << 24); + bs->sc_dmasync_before = ct_isa_dmasync_before; + bs->sc_dmasync_after = ct_isa_dmasync_after; + bshw_read_settings(chp, bs); + + /* setup ct driver softc */ + ct->ct_hw = bs; + ct->ct_dma_xfer_start = bshw_dma_xfer_start; + ct->ct_pio_xfer_start = bshw_smit_xfer_start; + ct->ct_dma_xfer_stop = bshw_dma_xfer_stop; + ct->ct_pio_xfer_stop = bshw_smit_xfer_stop; + ct->ct_bus_reset = bshw_bus_reset; + ct->ct_synch_setup = bshw_synch_setup; + + ct->sc_xmode = CT_XMODE_DMA; + if (chp->ch_memh != NULL) + ct->sc_xmode |= CT_XMODE_PIO; + + ct->sc_chiprev = chiprev; + switch (chiprev) + { + case CT_WD33C93: + /* s = "WD33C93"; */ + ct->sc_chipclk = 8; + break; + case CT_WD33C93_A: + if (DVCFG_MAJOR(device_get_flags(dev)) > 0) + { + /* s = "AM33C93_A"; */ + ct->sc_chipclk = 20; + ct->sc_chiprev = CT_AM33C93_A; + } + else + { + /* s = "WD33C93_A"; */ + ct->sc_chipclk = 10; + } + break; + + case CT_AM33C93_A: + /* s = "AM33C93_A"; */ + ct->sc_chipclk = 20; + break; + + default: + case CT_WD33C93_B: + /* s = "WD33C93_B"; */ + ct->sc_chipclk = 20; + break; + } +#if 0 + printf("%s: chiprev %s chipclk %d Mhz\n", + slp->sl_dev.dv_xname, s, ct->sc_chipclk); +#endif + + slp->sl_dev = dev; + slp->sl_hostid = bs->sc_hostid; + slp->sl_irq = isa_get_irq(dev); + slp->sl_cfgflags = device_get_flags(dev); + + s = splcam(); + ctattachsubr(ct); + splx(s); + + if (bus_setup_intr(dev, ct->irq_res, INTR_TYPE_CAM, + (driver_intr_t *)ctintr, ct, &ct->sc_ih)) { + ct_space_unmap(dev, ct); + return ENXIO; + } + + return 0; +} + +static struct bshw * +ct_find_hw(device_t dev) +{ + return DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(device_get_flags(dev))); +} + +static int +ct_space_map(device_t dev, struct bshw *hw, + struct resource **iohp, struct resource **memhp) +{ + int port_rid, mem_rid; + + *memhp = NULL; + + port_rid = 0; + *iohp = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid, 0, ~0, + BSHW_IOSZ, RF_ACTIVE); + if (*iohp == NULL) + return ENXIO; + + if ((hw->hw_flags & BSHW_SMFIFO) == 0 || isa_get_maddr(dev) == -1) + return 0; + + mem_rid = 0; + *memhp = bus_alloc_resource(dev, SYS_RES_MEMORY, &mem_rid, 0, ~0, + BSHW_MEMSZ, RF_ACTIVE); + if (*memhp == NULL) { + bus_release_resource(dev, SYS_RES_IOPORT, port_rid, *iohp); + return ENXIO; + } + + return 0; +} + +static void +ct_space_unmap(device_t dev, struct ct_softc *ct) +{ + if (ct->port_res != NULL) + bus_release_resource(dev, SYS_RES_IOPORT, 0, ct->port_res); + if (ct->mem_res != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, 0, ct->mem_res); + if (ct->irq_res != NULL) + bus_release_resource(dev, SYS_RES_IRQ, 0, ct->irq_res); + if (ct->drq_res != NULL) + bus_release_resource(dev, SYS_RES_DRQ, 0, ct->drq_res); +} + +static void +ct_dmamap(void *arg, bus_dma_segment_t *seg, int nseg, int error) +{ + bus_addr_t *addr = (bus_addr_t *)arg; + + *addr = seg->ds_addr; +} + +static void +ct_isa_bus_access_weight(chp) + struct ct_bus_access_handle *chp; +{ + + outb(0x5f, 0); +} + +static void +ct_isa_dmasync_before(ct) + struct ct_softc *ct; +{ + + if (need_pre_dma_flush) + wbinvd(); +} + +static void +ct_isa_dmasync_after(ct) + struct ct_softc *ct; +{ + + if (need_post_dma_flush) + invd(); +} |
