/*- * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Matt Thomas of 3am Software Foundry. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 "locators.h" #include __KERNEL_RCSID(0, "$NetBSD: wdc_obio.c,v 1.6.8.1 2019/09/23 07:09:47 martin Exp $"); #include #include #include #include #include "ioconf.h" #include #include #include #include #include #include struct wdc_obio_softc { struct wdc_softc sc_wdcdev; struct ata_channel *wdc_chanlist[1]; struct ata_channel ata_channel; struct wdc_regs wdc_regs; void *sc_ih; }; #define WDC_OBIO_AUXREG_OFFSET (WDC_NREG + 6) static int wdc_obio_match(device_t, cfdata_t, void *); static void wdc_obio_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(wdc_obio, sizeof(struct wdc_obio_softc), wdc_obio_match, wdc_obio_attach, NULL, NULL); static bool wdc_obio_initregmap(struct wdc_regs *wdr, bus_space_tag_t bst, bus_addr_t addr, bus_size_t size) { int error; wdr->cmd_iot = bst; wdr->ctl_iot = bst; error = bus_space_map(wdr->cmd_iot, addr, size, 0, &wdr->cmd_baseioh); if (error) { wdr->cmd_baseioh = 0; return false; } for (u_int i = 0; i < WDC_NREG; i++) { if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, i, (i == 0) ? 2 : 1, &wdr->cmd_iohs[i])) { return false; } } if (bus_space_subregion(wdr->ctl_iot, wdr->cmd_baseioh, WDC_OBIO_AUXREG_OFFSET, 1, &wdr->ctl_ioh)) { return false; } return true; } static int wdc_obio_match(device_t parent, cfdata_t cf, void *aux) { struct generic_attach_args * const ga = aux; bus_size_t size = ga->ga_size; struct wdc_regs wdr; struct device dev; int rv = 0; if (ga->ga_addr == OBIOCF_ADDR_DEFAULT) return 0; if (size == OBIOCF_SIZE_DEFAULT || size > PAGE_SIZE) size = 2 * WDC_NREG; /* * We need to see if a CF is attached in True-IDE mode */ memset(&dev, 0, sizeof(dev)); memset(&wdr, 0, sizeof(wdr)); dev.dv_xname[0] = '?'; if (wdc_obio_initregmap(&wdr, ga->ga_bst, ga->ga_addr, size)) { wdc_init_shadow_regs(&wdr); rv = wdcprobe(&wdr); bus_space_unmap(wdr.cmd_iot, wdr.cmd_baseioh, size); } return rv; } static void wdc_obio_attach(device_t parent, device_t self, void *aux) { struct wdc_obio_softc *sc = device_private(self); struct wdc_regs * const wdr = &sc->wdc_regs; struct generic_attach_args * const ga = aux; bus_size_t size = ga->ga_size; if (size == OBIOCF_SIZE_DEFAULT || size > PAGE_SIZE) size = 2 * WDC_NREG; sc->sc_wdcdev.sc_atac.atac_dev = self; sc->sc_wdcdev.regs = wdr; if (!wdc_obio_initregmap(wdr, ga->ga_bst, ga->ga_addr, size)) { aprint_error(": couldn't map registers\n"); return; } //sc->sc_wdcdev.cap |= WDC_CAPABILITY_NO_EXTRA_RESETS; sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; sc->wdc_chanlist[0] = &sc->ata_channel; sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist; sc->sc_wdcdev.sc_atac.atac_nchannels = 1; sc->sc_wdcdev.wdc_maxdrives = 2; sc->ata_channel.ch_channel = 0; sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac; wdc_init_shadow_regs(wdr); /* * The interrupt line is controlled by a jumper. We can't detect * this, except by allowing a request to time out, so assume that * if the config file hasn't specified the IRQ, then the jumper isn't * fitted. */ if (ga->ga_irq != OBIOCF_IRQ_DEFAULT) { sc->sc_ih = intr_establish(ga->ga_irq, IPL_BIO, IST_EDGE, wdcintr, &sc->ata_channel); aprint_normal(": interrupting at irq %d\n", ga->ga_irq); } else { sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_NOIRQ; aprint_normal(": using polled I/O\n"); } wdcattach(&sc->ata_channel); }