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146 lines
4.1 KiB
C
146 lines
4.1 KiB
C
/* $NetBSD: slhci_zbus.c,v 1.1 2013/04/27 22:27:33 rkujawa Exp $ */
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/*-
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* Copyright (c) 2013 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 Radoslaw Kujawa.
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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 <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: slhci_zbus.c,v 1.1 2013/04/27 22:27:33 rkujawa Exp $");
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/*
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* Thylacine driver.
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* Inspired by slhci_intio.c.
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*/
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <amiga/amiga/device.h>
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#include <amiga/amiga/isr.h>
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#include <amiga/dev/zbusvar.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/ic/sl811hsreg.h>
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#include <dev/ic/sl811hsvar.h>
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#define THYLACINE_SLHCI_PWR_OFFSET 0x100
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#define THYLACINE_SLHCI_ADDR_OFFSET 0x1
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#define THYLACINE_SLHCI_DATA_STRIDE 0x4000
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#define THYLACINE_SIZE 0x8000
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static int slhci_zbus_match(device_t, cfdata_t , void *);
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static void slhci_zbus_attach(device_t, device_t, void *);
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static void slhci_zbus_enable_power(void *, enum power_change);
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struct slhci_zbus_softc {
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struct slhci_softc sc_sc;
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struct bus_space_tag sc_bst;
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struct isr sc_isr;
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};
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CFATTACH_DECL_NEW(slhci_zbus, sizeof(struct slhci_zbus_softc),
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slhci_zbus_match, slhci_zbus_attach, NULL, NULL);
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static int
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slhci_zbus_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct zbus_args *zap = aux;
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/* Thylacine */
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if (zap->manid == 0x1392 && zap->prodid == 0x1) {
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return 1;
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}
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return 0;
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}
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static void
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slhci_zbus_attach(device_t parent, device_t self, void *aux)
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{
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struct slhci_zbus_softc *zsc;
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struct slhci_softc *sc;
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struct zbus_args *zap;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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zap = aux;
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zsc = device_private(self);
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sc = &zsc->sc_sc;
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sc->sc_dev = self;
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sc->sc_bus.hci_private = sc;
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zsc->sc_bst.base = (bus_addr_t)zap->va;
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zsc->sc_bst.absm = &amiga_bus_stride_1;
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iot = &zsc->sc_bst;
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aprint_normal(": Thylacine USB Host Controller\n");
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if (bus_space_map(iot, THYLACINE_SLHCI_ADDR_OFFSET, THYLACINE_SIZE, 0,
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&ioh)) {
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aprint_error_dev(sc->sc_dev, "can't map the bus\n");
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}
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slhci_preinit(sc, slhci_zbus_enable_power, iot, ioh, 500,
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THYLACINE_SLHCI_DATA_STRIDE);
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/* Attach interrupt routine. */
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zsc->sc_isr.isr_intr = slhci_intr;
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zsc->sc_isr.isr_arg = sc;
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zsc->sc_isr.isr_ipl = 6;
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add_isr(&zsc->sc_isr);
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slhci_attach(sc);
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}
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static void
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slhci_zbus_enable_power(void *arg, enum power_change mode)
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{
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struct slhci_zbus_softc *zsc = arg;
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/*
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* The hardware is dumb. Changing power mode depends only on A8 being
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* low or high.
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*/
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if (mode == POWER_ON)
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bus_space_read_1(zsc->sc_sc.sc_iot, zsc->sc_sc.sc_ioh,
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THYLACINE_SLHCI_DATA_STRIDE);
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else
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bus_space_read_1(zsc->sc_sc.sc_iot, zsc->sc_sc.sc_ioh,
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THYLACINE_SLHCI_PWR_OFFSET);
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}
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