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135 lines
4.2 KiB
C
135 lines
4.2 KiB
C
/*-
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* Copyright (c) 2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas of 3am Software Foundry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "locators.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(1, "$NetBSD: awin_wdc.c,v 1.2 2014/02/20 21:48:38 matt Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/systm.h>
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#include <arm/allwinner/awin_reg.h>
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#include <arm/allwinner/awin_var.h>
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#include <dev/ata/atavar.h>
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#include <dev/ic/wdcvar.h>
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static int awin_wdc_match(device_t, cfdata_t, void *);
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static void awin_wdc_attach(device_t, device_t, void *);
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struct awin_wdc_softc {
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struct wdc_softc asc_sc;
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struct ata_channel *asc_chanlist[1];
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struct ata_channel asc_channel;
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struct ata_queue asc_chqueue;
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struct wdc_regs asc_wdc_regs;
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void *asc_ih;
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};
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CFATTACH_DECL_NEW(awin_wdc, sizeof(struct awin_wdc_softc),
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awin_wdc_match, awin_wdc_attach, NULL, NULL);
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static int
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awin_wdc_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct awinio_attach_args * const aio = aux;
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const struct awin_locators * const loc = &aio->aio_loc;
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const int port = cf->cf_loc[AWINIOCF_PORT];
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if (strcmp(cf->cf_name, loc->loc_name))
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return 0;
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if (port != AWINIOCF_PORT_DEFAULT)
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return 0;
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return 1;
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}
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static void
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awin_wdc_attach(device_t parent, device_t self, void *aux)
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{
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struct awin_wdc_softc * const asc = device_private(self);
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struct wdc_softc * const sc = &asc->asc_sc;
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struct awinio_attach_args * const aio = aux;
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const struct awin_locators * const loc = &aio->aio_loc;
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struct wdc_regs * const regs = &asc->asc_wdc_regs;
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sc->sc_atac.atac_dev = self;
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sc->regs = regs;
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regs->cmd_iot = aio->aio_core_a4x_bst;
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regs->ctl_iot = aio->aio_core_a4x_bst;
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regs->data32iot = aio->aio_core_a4x_bst;
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bus_space_subregion(regs->cmd_iot, aio->aio_core_bsh,
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loc->loc_offset / 4, loc->loc_size, ®s->cmd_baseioh);
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aprint_naive(": ATA controller\n");
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aprint_normal(": ATA controller\n");
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for (u_int i = 0; i < 8; i++) {
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if (bus_space_subregion(regs->cmd_iot, regs->cmd_baseioh,
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i, 1, ®s->cmd_iohs[i]) != 0) {
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aprint_error(": couldn't subregion registers\n");
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return;
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}
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}
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if (bus_space_subregion(regs->ctl_iot, regs->cmd_baseioh,
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AWIN_PATA_CTL_REG, 1, ®s->ctl_ioh) != 0) {
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aprint_error(": couldn't subregion registers\n");
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return;
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}
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asc->asc_ih = intr_establish(loc->loc_intr, IPL_VM, IST_LEVEL,
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wdcintr, sc);
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if (asc->asc_ih == NULL) {
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aprint_error_dev(self, "failed to establish interrupt %d\n",
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loc->loc_intr);
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goto fail;
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}
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aprint_normal_dev(self, "interrupting on irq %d\n",
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loc->loc_intr);
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return;
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fail:
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if (asc->asc_ih) {
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intr_disestablish(asc->asc_ih);
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asc->asc_ih = NULL;
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}
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}
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