Annotation of sys/dev/isa/wdc_isapnp.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: wdc_isapnp.c,v 1.7 2002/03/14 01:26:56 millert Exp $ */
! 2: /* $NetBSD: wdc_isapnp.c,v 1.13 1999/03/22 10:00:12 mycroft Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Charles M. Hannum and by Onno van der Linden.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: #include <sys/types.h>
! 41: #include <sys/param.h>
! 42: #include <sys/systm.h>
! 43: #include <sys/device.h>
! 44: #include <sys/malloc.h>
! 45:
! 46: #include <machine/bus.h>
! 47: #include <machine/intr.h>
! 48:
! 49: #include <dev/isa/isavar.h>
! 50: #include <dev/isa/isadmavar.h>
! 51:
! 52: #include <dev/ata/atavar.h>
! 53: #include <dev/ic/wdcreg.h>
! 54: #include <dev/ic/wdcvar.h>
! 55:
! 56: struct wdc_isapnp_softc {
! 57: struct wdc_softc sc_wdcdev;
! 58: struct channel_softc *wdc_chanptr;
! 59: struct channel_softc wdc_channel;
! 60: isa_chipset_tag_t sc_ic;
! 61: void *sc_ih;
! 62: int sc_drq;
! 63: };
! 64:
! 65: int wdc_isapnp_match(struct device *, void *, void *);
! 66: void wdc_isapnp_attach(struct device *, struct device *, void *);
! 67:
! 68: struct cfattach wdc_isapnp_ca = {
! 69: sizeof(struct wdc_isapnp_softc), wdc_isapnp_match, wdc_isapnp_attach
! 70: };
! 71:
! 72: #ifdef notyet
! 73: static void wdc_isapnp_dma_setup(struct wdc_isapnp_softc *);
! 74: static void wdc_isapnp_dma_start(void *, void *, size_t, int);
! 75: static void wdc_isapnp_dma_finish(void *);
! 76: #endif
! 77:
! 78: int
! 79: wdc_isapnp_match(parent, match, aux)
! 80: struct device *parent;
! 81: void *match;
! 82: void *aux;
! 83: {
! 84: struct isa_attach_args *ipa = aux;
! 85:
! 86: if (ipa->ipa_nio != 2 ||
! 87: ipa->ipa_nmem != 0 ||
! 88: ipa->ipa_nmem32 != 0 ||
! 89: ipa->ipa_nirq != 1 ||
! 90: ipa->ipa_ndrq > 1)
! 91: return 0;
! 92:
! 93: return (1);
! 94: }
! 95:
! 96: void
! 97: wdc_isapnp_attach(parent, self, aux)
! 98: struct device *parent, *self;
! 99: void *aux;
! 100: {
! 101: struct wdc_isapnp_softc *sc = (void *)self;
! 102: struct isa_attach_args *ipa = aux;
! 103:
! 104:
! 105: sc->wdc_channel.cmd_iot = ipa->ia_iot;
! 106: sc->wdc_channel.ctl_iot = ipa->ia_iot;
! 107:
! 108: /*
! 109: * An IDE controller can feed us the regions in any order. Pass
! 110: * them along with the 8-byte region in sc_ad.ioh, and the other
! 111: * (2 byte) region in auxioh.
! 112: */
! 113: if (ipa->ipa_io[0].length == 8) {
! 114: sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h;
! 115: sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h;
! 116: } else {
! 117: sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h;
! 118: sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h;
! 119: }
! 120: sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
! 121: sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh;
! 122:
! 123: sc->sc_ic = ipa->ia_ic;
! 124: sc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num,
! 125: ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel,
! 126: sc->sc_wdcdev.sc_dev.dv_xname);
! 127:
! 128: #ifdef notyet
! 129: if (ipa->ipa_ndrq > 0) {
! 130: sc->sc_drq = ipa->ipa_drq[0].num;
! 131:
! 132: sc->sc_ad.cap |= WDC_CAPABILITY_DMA;
! 133: sc->sc_ad.dma_start = &wdc_isapnp_dma_start;
! 134: sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish;
! 135: wdc_isapnp_dma_setup(sc);
! 136: }
! 137: #endif
! 138: sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32;
! 139: sc->sc_wdcdev.PIO_cap = 0;
! 140: sc->wdc_chanptr = &sc->wdc_channel;
! 141: sc->sc_wdcdev.channels = &sc->wdc_chanptr;
! 142: sc->sc_wdcdev.nchannels = 1;
! 143: sc->wdc_channel.channel = 0;
! 144: sc->wdc_channel.wdc = &sc->sc_wdcdev;
! 145: sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue),
! 146: M_DEVBUF, M_NOWAIT);
! 147: if (sc->wdc_channel.ch_queue == NULL) {
! 148: printf(": can't allocate memory for command queue\n");
! 149: return;
! 150: }
! 151:
! 152: printf("\n");
! 153: wdcattach(&sc->wdc_channel);
! 154: wdc_print_current_modes(&sc->wdc_channel);
! 155: }
! 156:
! 157: #ifdef notyet
! 158: static void
! 159: wdc_isapnp_dma_setup(sc)
! 160: struct wdc_isapnp_softc *sc;
! 161: {
! 162:
! 163: if (isa_dmamap_create(sc->sc_ic, sc->sc_drq,
! 164: MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
! 165: printf("%s: can't create map for drq %d\n",
! 166: sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq);
! 167: sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA;
! 168: }
! 169: }
! 170:
! 171: static void
! 172: wdc_isapnp_dma_start(scv, buf, size, read)
! 173: void *scv, *buf;
! 174: size_t size;
! 175: int read;
! 176: {
! 177: struct wdc_isapnp_softc *sc = scv;
! 178:
! 179: isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL,
! 180: (read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND,
! 181: BUS_DMA_NOWAIT);
! 182: }
! 183:
! 184: static void
! 185: wdc_isapnp_dma_finish(scv)
! 186: void *scv;
! 187: {
! 188: struct wdc_isapnp_softc *sc = scv;
! 189:
! 190: isa_dmadone(sc->sc_ic, sc->sc_drq);
! 191: }
! 192: #endif
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to wdc_isapnp.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / dev / isa