Annotation of sys/arch/landisk/dev/wdc_obio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: wdc_obio.c,v 1.2 2006/10/28 15:51:33 kettenis Exp $ */
! 2: /* $NetBSD: wdc_obio.c,v 1.1 2006/09/01 21:26:18 uwe Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1998, 2003 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/param.h>
! 41: #include <sys/systm.h>
! 42: #include <sys/device.h>
! 43: #include <sys/malloc.h>
! 44:
! 45: #include <machine/bus.h>
! 46: #include <machine/intr.h>
! 47:
! 48: #include <dev/ata/atavar.h>
! 49: #include <dev/ic/wdcvar.h>
! 50:
! 51: #include <landisk/dev/obiovar.h>
! 52:
! 53: struct wdc_obio_softc {
! 54: struct wdc_softc sc_wdcdev;
! 55: struct channel_softc *sc_chanptr;
! 56: struct channel_softc sc_channel;
! 57:
! 58: void *sc_ih;
! 59: };
! 60:
! 61: int wdc_obio_match(struct device *, void *, void *);
! 62: void wdc_obio_attach(struct device *, struct device *, void *);
! 63:
! 64: struct cfattach wdc_obio_ca = {
! 65: sizeof(struct wdc_obio_softc), wdc_obio_match, wdc_obio_attach
! 66: };
! 67:
! 68: #define WDC_OBIO_REG_NPORTS WDC_NREG
! 69: #define WDC_OBIO_REG_SIZE (WDC_OBIO_REG_NPORTS * 2)
! 70: #define WDC_OBIO_AUXREG_NPORTS 1
! 71: #define WDC_OBIO_AUXREG_SIZE (WDC_OBIO_AUXREG_NPORTS * 2)
! 72: #define WDC_OBIO_AUXREG_OFFSET 0x2c
! 73:
! 74: u_int8_t wdc_obio_read_reg(struct channel_softc *chp, enum wdc_regs reg);
! 75: void wdc_obio_write_reg(struct channel_softc *chp, enum wdc_regs reg,
! 76: u_int8_t val);
! 77:
! 78: struct channel_softc_vtbl wdc_obio_vtbl = {
! 79: wdc_obio_read_reg,
! 80: wdc_obio_write_reg,
! 81: wdc_default_lba48_write_reg,
! 82: wdc_default_read_raw_multi_2,
! 83: wdc_default_write_raw_multi_2,
! 84: wdc_default_read_raw_multi_4,
! 85: wdc_default_write_raw_multi_4
! 86: };
! 87:
! 88: int
! 89: wdc_obio_match(struct device *parent, void *vcf, void *aux)
! 90: {
! 91: struct obio_attach_args *oa = aux;
! 92:
! 93: if (oa->oa_nio != 1)
! 94: return (0);
! 95: if (oa->oa_nirq != 1)
! 96: return (0);
! 97: if (oa->oa_niomem != 0)
! 98: return (0);
! 99:
! 100: if (oa->oa_io[0].or_addr == IOBASEUNK)
! 101: return (0);
! 102: if (oa->oa_irq[0].or_irq == IRQUNK)
! 103: return (0);
! 104:
! 105: /* XXX should probe for hardware */
! 106:
! 107: oa->oa_io[0].or_size = WDC_OBIO_REG_SIZE;
! 108:
! 109: return (1);
! 110: }
! 111:
! 112: void
! 113: wdc_obio_attach(struct device *parent, struct device *self, void *aux)
! 114: {
! 115: struct wdc_obio_softc *sc = (void *)self;
! 116: struct obio_attach_args *oa = aux;
! 117: struct channel_softc *chp = &sc->sc_channel;
! 118:
! 119: printf("\n");
! 120:
! 121: chp->cmd_iot = chp->ctl_iot = oa->oa_iot;
! 122: chp->_vtbl = &wdc_obio_vtbl;
! 123:
! 124: if (bus_space_map(chp->cmd_iot, oa->oa_io[0].or_addr,
! 125: WDC_OBIO_REG_SIZE, 0, &chp->cmd_ioh)
! 126: || bus_space_map(chp->ctl_iot,
! 127: oa->oa_io[0].or_addr + WDC_OBIO_AUXREG_OFFSET,
! 128: WDC_OBIO_AUXREG_SIZE, 0, &chp->ctl_ioh)) {
! 129: printf(": couldn't map registers\n");
! 130: return;
! 131: }
! 132:
! 133: sc->sc_ih = obio_intr_establish(oa->oa_irq[0].or_irq, IPL_BIO, wdcintr,
! 134: chp, self->dv_xname);
! 135:
! 136: sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_PREATA;
! 137: sc->sc_wdcdev.PIO_cap = 0;
! 138: sc->sc_chanptr = chp;
! 139: sc->sc_wdcdev.channels = &sc->sc_chanptr;
! 140: sc->sc_wdcdev.nchannels = 1;
! 141: chp->channel = 0;
! 142: chp->wdc = &sc->sc_wdcdev;
! 143:
! 144: chp->ch_queue = malloc(sizeof(struct channel_queue), M_DEVBUF,
! 145: M_NOWAIT);
! 146: if (chp->ch_queue == NULL) {
! 147: printf("%s: can't allocate memory for command queue\n",
! 148: self->dv_xname);
! 149: obio_intr_disestablish(sc->sc_ih);
! 150: return;
! 151: }
! 152:
! 153: wdcattach(chp);
! 154: wdc_print_current_modes(chp);
! 155: }
! 156:
! 157: u_int8_t
! 158: wdc_obio_read_reg(struct channel_softc *chp, enum wdc_regs reg)
! 159: {
! 160: if (reg & _WDC_AUX)
! 161: return (bus_space_read_1(chp->ctl_iot, chp->ctl_ioh,
! 162: (reg & _WDC_REGMASK) << 1));
! 163: else
! 164: return (bus_space_read_1(chp->cmd_iot, chp->cmd_ioh,
! 165: (reg & _WDC_REGMASK) << 1));
! 166: }
! 167:
! 168: void
! 169: wdc_obio_write_reg(struct channel_softc *chp, enum wdc_regs reg, u_int8_t val)
! 170: {
! 171: if (reg & _WDC_AUX)
! 172: bus_space_write_1(chp->ctl_iot, chp->ctl_ioh,
! 173: (reg & _WDC_REGMASK) << 1, val);
! 174: else
! 175: bus_space_write_1(chp->cmd_iot, chp->cmd_ioh,
! 176: (reg & _WDC_REGMASK) << 1, val);
! 177: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to wdc_obio.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / landisk / dev