348 lines
9.1 KiB
C
348 lines
9.1 KiB
C
/* $NetBSD: hd64461.c,v 1.1 2001/02/21 15:39:09 uch Exp $ */
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/*-
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* Copyright (c) 2001 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 UCHIYAMA Yasushi.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/boot_flag.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <sh3/shbvar.h>
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#ifdef DEBUG
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#include <hpcsh/hpcsh/debug.h>
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#endif
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#include <hpcsh/dev/hd64461/hd64461var.h>
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#include <hpcsh/dev/hd64461/hd64461reg.h>
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#include <hpcsh/dev/hd64461/hd64461intcreg.h>
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#include <hpcsh/dev/hd64461/hd64461intcvar.h>
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/* HD64461 modules. INTC, TIMER, POWER modules are included in hd64461if */
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static struct hd64461_module {
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const char *name;
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} hd64461_modules[] = {
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[HD64461_MODULE_VIDEO] = { "hd64461video" },
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[HD64461_MODULE_PCMCIA] = { "hd64461pcmcia" },
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[HD64461_MODULE_GPIO] = { "hd64461gpio" },
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[HD64461_MODULE_AFE] = { "hd64461afe" },
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[HD64461_MODULE_UART] = { "hd64461uart" },
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[HD64461_MODULE_FIR] = { "hd64461fir" },
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};
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#define HD64461_NMODULE \
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(sizeof hd64461_modules / sizeof(struct hd64461_module))
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struct hd64461_intr_entry {
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int (*func)(void *);
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void *arg;
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int priority;
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const u_int16_t mask;
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} hd64461_intr_entry[] = {
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#define IRQ_ENTRY(x) [HD64461_IRQ_##x] = { 0, 0, 0, HD64461_INTC_##x }
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IRQ_ENTRY(PCC0),
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IRQ_ENTRY(PCC1),
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IRQ_ENTRY(AFE),
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IRQ_ENTRY(GPIO),
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IRQ_ENTRY(TMU0),
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IRQ_ENTRY(TMU1),
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IRQ_ENTRY(IRDA),
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IRQ_ENTRY(UART)
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#undef IRQ_ENTRY
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};
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struct hd64461_softc {
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struct device sc_dev;
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};
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static int hd64461_match(struct device *, struct cfdata *, void *);
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static void hd64461_attach(struct device *, struct device *, void *);
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static int hd64461_print(void *, const char *);
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struct cfattach hd64461if_ca = {
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sizeof(struct hd64461_softc), hd64461_match, hd64461_attach
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};
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static void hd64461_module_attach(struct hd64461_softc *);
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static int hd64461_intr(void *);
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#ifdef DEBUG
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static void hd64461_info(struct hd64461_softc *);
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#endif
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static int
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hd64461_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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static int match;
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struct shb_attach_args *ia = aux;
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if (match++)
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return (0); /* only one instance */
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if (strcmp("hd64461if", cf->cf_driver->cd_name))
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return (0);
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ia->ia_iobase = 0;
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ia->ia_iosize = 0;
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ia->ia_maddr = 0;
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ia->ia_msize = 0;
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return (1);
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}
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static void
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hd64461_attach(struct device *parent, struct device *self, void *aux)
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{
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struct shb_attach_args *ia = aux;
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struct hd64461_softc *sc = (struct hd64461_softc *)self;
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printf("\n");
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#ifdef DEBUG
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if (bootverbose)
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hd64461_info(sc);
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#endif
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/* mask all interrupt */
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hd64461_reg_write_2(HD64461_INTCNIMR_REG16, 0xffff);
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shb_intr_establish(ia->ia_irq, IST_EDGE, IPL_TTY, hd64461_intr, sc);
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hd64461_module_attach(sc);
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}
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static void
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hd64461_module_attach(struct hd64461_softc *sc)
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{
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struct hd64461_attach_args ha;
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struct hd64461_module *module;
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int i;
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/* attach all sub modules */
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for (i = 0, module = hd64461_modules; i < HD64461_NMODULE;
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i++, module++) {
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if (module->name == 0)
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continue;
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ha.ha_module_id = i;
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config_found(&sc->sc_dev, &ha, hd64461_print);
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}
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}
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static int
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hd64461_print(void *aux, const char *pnp)
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{
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struct hd64461_attach_args *ha = aux;
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if (pnp)
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printf("%s at %s",
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hd64461_modules[ha->ha_module_id].name, pnp);
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return (UNCONF);
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}
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void *
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hd64461_intr_establish(enum hd64461_irq irq, int mode, int level,
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int (*func)(void *), void *arg)
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{
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struct hd64461_intr_entry *entry = &hd64461_intr_entry[irq];
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u_int16_t r;
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int s;
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s = splhigh();
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entry->func = func;
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entry->arg = arg;
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entry->priority = level;
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/* enable interrupt */
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r = hd64461_reg_read_2(HD64461_INTCNIMR_REG16);
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r &= ~entry->mask;
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hd64461_reg_write_2(HD64461_INTCNIMR_REG16, r);
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splx(s);
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return (void *)irq;
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}
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void
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hd64461_intr_disestablish(void *handle)
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{
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int irq = (int)handle;
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struct hd64461_intr_entry *entry = &hd64461_intr_entry[irq];
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u_int16_t r;
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int s;
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s = splhigh();
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/* disable interrupt */
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r = hd64461_reg_read_2(HD64461_INTCNIMR_REG16);
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r |= entry->mask;
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hd64461_reg_write_2(HD64461_INTCNIMR_REG16, r);
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entry->func = 0;
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splx(s);
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}
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int
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hd64461_intr(void *arg)
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{
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struct hd64461_intr_entry *entry = hd64461_intr_entry;
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u_int16_t r, m, cause;
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int i;
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r = hd64461_reg_read_2(HD64461_INTCNIRR_REG16);
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m = hd64461_reg_read_2(HD64461_INTCNIMR_REG16);
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cause = r & ~m;
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/* XXX priority */
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hd64461_reg_write_2(HD64461_INTCNIMR_REG16, 0xffff);
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/* XXX priority */
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for (i = 0; i < HD64461_IRQ_MAX; i++, entry++) {
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if (entry->func == 0)
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continue;
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if (cause & entry->mask) {
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(*entry->func)(entry->arg);
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}
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}
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hd64461_reg_write_2(HD64461_INTCNIMR_REG16, m);
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return 0;
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}
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#ifdef DEBUG
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static void
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hd64461_info(struct hd64461_softc *sc)
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{
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const char name[] = __FUNCTION__;
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u_int16_t r16;
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dbg_banner_start(name, sizeof name);
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/*
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* System
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*/
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printf("STBCR (System Control Register)\n");
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r16 = hd64461_reg_read_2(HD64461_SYSSTBCR_REG16);
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#define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_SYSSTBCR_##m, #m)
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DBG_BIT_PRINT(r16, CKIO_STBY);
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DBG_BIT_PRINT(r16, SAFECKE_IST);
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DBG_BIT_PRINT(r16, SLCKE_IST);
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DBG_BIT_PRINT(r16, SAFECKE_OST);
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DBG_BIT_PRINT(r16, SLCKE_OST);
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DBG_BIT_PRINT(r16, SMIAST);
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DBG_BIT_PRINT(r16, SLCDST);
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DBG_BIT_PRINT(r16, SPC0ST);
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DBG_BIT_PRINT(r16, SPC1ST);
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DBG_BIT_PRINT(r16, SAFEST);
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DBG_BIT_PRINT(r16, STM0ST);
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DBG_BIT_PRINT(r16, STM1ST);
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DBG_BIT_PRINT(r16, SIRST);
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DBG_BIT_PRINT(r16, SURTSD);
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#undef DBG_BIT_PRINT
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printf("\n");
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printf("SYSCR (System Configuration Register)\n");
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r16 = hd64461_reg_read_2(HD64461_SYSSYSCR_REG16);
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#define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_SYSSYSCR_##m, #m)
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DBG_BIT_PRINT(r16, SCPU_BUS_IGAT);
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DBG_BIT_PRINT(r16, SPTA_IR);
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DBG_BIT_PRINT(r16, SPTA_TM);
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DBG_BIT_PRINT(r16, SPTB_UR);
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DBG_BIT_PRINT(r16, WAIT_CTL_SEL);
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DBG_BIT_PRINT(r16, SMODE1);
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DBG_BIT_PRINT(r16, SMODE0);
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#undef DBG_BIT_PRINT
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printf("\n");
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printf("SCPUCR (CPU Data Bus Control Register)\n");
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r16 = hd64461_reg_read_2(HD64461_SYSSCPUCR_REG16);
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#define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_SYSSCPUCR_##m, #m)
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DBG_BIT_PRINT(r16, SPDSTOF);
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DBG_BIT_PRINT(r16, SPDSTIG);
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DBG_BIT_PRINT(r16, SPCSTOF);
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DBG_BIT_PRINT(r16, SPCSTIG);
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DBG_BIT_PRINT(r16, SPBSTOF);
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DBG_BIT_PRINT(r16, SPBSTIG);
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DBG_BIT_PRINT(r16, SPASTOF);
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DBG_BIT_PRINT(r16, SPASTIG);
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DBG_BIT_PRINT(r16, SLCDSTIG);
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DBG_BIT_PRINT(r16, SCPU_CS56_EP);
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DBG_BIT_PRINT(r16, SCPU_CMD_EP);
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DBG_BIT_PRINT(r16, SCPU_ADDR_EP);
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DBG_BIT_PRINT(r16, SCPDPU);
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DBG_BIT_PRINT(r16, SCPU_A2319_EP);
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#undef DBG_BIT_PRINT
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printf("\n");
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printf("\n");
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/*
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* INTC
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*/
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printf("NIRR (Interrupt Request Register)\n");
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r16 = hd64461_reg_read_2(HD64461_INTCNIRR_REG16);
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#define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_INTCNIRR_##m, #m)
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DBG_BIT_PRINT(r16, PCC0R);
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DBG_BIT_PRINT(r16, PCC1R);
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DBG_BIT_PRINT(r16, AFER);
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DBG_BIT_PRINT(r16, GPIOR);
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DBG_BIT_PRINT(r16, TMU0R);
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DBG_BIT_PRINT(r16, TMU1R);
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DBG_BIT_PRINT(r16, IRDAR);
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DBG_BIT_PRINT(r16, UARTR);
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#undef DBG_BIT_PRINT
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printf("\n");
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printf("NIMR (Interrupt Mask Register)\n");
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r16 = hd64461_reg_read_2(HD64461_INTCNIMR_REG16);
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#define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_INTCNIMR_##m, #m)
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DBG_BIT_PRINT(r16, PCC0M);
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DBG_BIT_PRINT(r16, PCC1M);
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DBG_BIT_PRINT(r16, AFEM);
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DBG_BIT_PRINT(r16, GPIOM);
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DBG_BIT_PRINT(r16, TMU0M);
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DBG_BIT_PRINT(r16, TMU1M);
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DBG_BIT_PRINT(r16, IRDAM);
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DBG_BIT_PRINT(r16, UARTM);
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#undef DBG_BIT_PRINT
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printf("\n");
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dbg_banner_end();
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}
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#endif /* DEBUG */
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