310 lines
7.4 KiB
C
310 lines
7.4 KiB
C
/* $NetBSD: sbus.c,v 1.5 2002/10/02 04:17:21 thorpej 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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/*
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* PlayStation 2 internal PCMCIA/USB interface unit.
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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 <machine/bootinfo.h>
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#include <machine/autoconf.h>
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#include <playstation2/playstation2/interrupt.h>
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#include <playstation2/ee/eevar.h>
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#include <playstation2/ee/intcvar.h>
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#include <playstation2/dev/sbusvar.h>
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#include <playstation2/dev/sbusreg.h>
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#ifdef DEBUG
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#define STATIC
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#else
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#define STATIC static
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#endif
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STATIC void sbus_type2_pcmcia_intr_clear(void);
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STATIC void sbus_type2_pcmcia_intr_enable(void);
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STATIC void sbus_type2_pcmcia_intr_disable(void);
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STATIC void sbus_type2_pcmcia_intr_reinstall(void);
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STATIC void sbus_type3_pcmcia_intr_clear(void);
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STATIC void sbus_type3_pcmcia_intr_enable(void);
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STATIC void sbus_type3_pcmcia_intr_disable(void);
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STATIC void sbus_type3_pcmcia_intr_reinstall(void);
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STATIC int sbus_spurious_intr(void *);
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STATIC void (*sbus_pcmcia_intr_clear)(void);
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STATIC void (*sbus_pcmcia_intr_enable)(void);
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STATIC void (*sbus_pcmcia_intr_disable)(void);
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STATIC void (*sbus_pcmcia_intr_reinstall)(void);
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STATIC int (*sbus_pcmcia_intr)(void *) = sbus_spurious_intr;
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STATIC void *sbus_pcmcia_context;
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STATIC int (*sbus_usb_intr)(void *) = sbus_spurious_intr;
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STATIC void *sbus_usb_context;
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STATIC void sbus_init(int);
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STATIC int sbus_intr(void *);
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STATIC int sbus_match(struct device *, struct cfdata *, void *);
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STATIC void sbus_attach(struct device *, struct device *, void *);
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STATIC int sbus_search(struct device *, struct cfdata *, void *);
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STATIC int sbus_print(void *, const char *);
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CFATTACH_DECL(sbus, sizeof (struct device),
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sbus_match, sbus_attach, NULL, NULL);
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extern struct cfdriver sbus_cd;
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STATIC int __sbus_attached;
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int
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sbus_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct mainbus_attach_args *ma = aux;
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if (strcmp(ma->ma_name, sbus_cd.cd_name) != 0)
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return (0);
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return (!__sbus_attached);
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}
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void
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sbus_attach(struct device *parent, struct device *self, void *aux)
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{
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int type = BOOTINFO_REF(BOOTINFO_PCMCIA_TYPE);
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printf(": controller type %d\n", type);
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/* Initialize SBUS controller */
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sbus_init(type);
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config_search(sbus_search, self, 0);
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}
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int
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sbus_search(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct sbus_attach_args sa;
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if (config_match(parent, cf, &sa))
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config_attach(parent, cf, &sa, sbus_print);
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return (0);
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}
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int
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sbus_print(void *aux, const char *pnp)
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{
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return (pnp ? QUIET : UNCONF);
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}
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void
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sbus_init(int type)
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{
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/* install model dependent hook */
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#define SET_PCMCIA_INTR_OPS(x) \
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sbus_pcmcia_intr_clear = sbus_type##x##_pcmcia_intr_clear; \
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sbus_pcmcia_intr_enable = sbus_type##x##_pcmcia_intr_enable; \
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sbus_pcmcia_intr_disable = sbus_type##x##_pcmcia_intr_disable; \
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sbus_pcmcia_intr_reinstall = sbus_type##x##_pcmcia_intr_reinstall
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switch (type) {
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default:
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panic("unknown pcmcia controller type = %d", type);
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break;
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case 0:
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/* FALLTHROUGH */
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case 1:
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/* FALLTHROUGH */
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case 2:
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SET_PCMCIA_INTR_OPS(2);
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break;
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case 3:
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SET_PCMCIA_INTR_OPS(3);
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break;
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}
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#undef SET_PCMCIA_INTR_OPS
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/* disable interrupt */
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(*sbus_pcmcia_intr_disable)();
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/* clear interrupt */
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(*sbus_pcmcia_intr_clear)();
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_reg_write_4(SBUS_SMFLG_REG, SMFLG_PCMCIA_INT);
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_reg_write_4(SBUS_SMFLG_REG, SMFLG_USB_INT);
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/* connect to INTC */
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intc_intr_establish(I_CH1_SBUS, IPL_BIO, sbus_intr, 0);
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}
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void *
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sbus_intr_establish(enum sbus_irq irq, int (*ih_func)(void *), void *ih_arg)
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{
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switch (irq) {
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default:
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panic("unknown IRQ");
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break;
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case SBUS_IRQ_PCMCIA:
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sbus_pcmcia_intr = ih_func;
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sbus_pcmcia_context = ih_arg;
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(*sbus_pcmcia_intr_enable)();
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break;
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case SBUS_IRQ_USB:
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sbus_usb_intr = ih_func;
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sbus_usb_context = ih_arg;
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break;
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}
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return (void *)irq;
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}
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void
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sbus_intr_disestablish(void *handle)
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{
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int irq = (int)handle;
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switch (irq) {
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default:
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panic("unknown IRQ");
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break;
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case SBUS_IRQ_PCMCIA:
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sbus_pcmcia_intr = sbus_spurious_intr;
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(*sbus_pcmcia_intr_disable)();
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break;
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case SBUS_IRQ_USB:
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sbus_usb_intr = sbus_spurious_intr;
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break;
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}
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}
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int
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sbus_intr(void *arg)
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{
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u_int32_t stat;
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_playstation2_evcnt.sbus.ev_count++;
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stat = _reg_read_4(SBUS_SMFLG_REG);
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if (stat & SMFLG_PCMCIA_INT) {
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(*sbus_pcmcia_intr_clear)();
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_reg_write_4(SBUS_SMFLG_REG, SMFLG_PCMCIA_INT);
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(*sbus_pcmcia_intr)(sbus_pcmcia_context);
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}
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if (stat & SMFLG_USB_INT) {
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_reg_write_4(SBUS_SMFLG_REG, SMFLG_USB_INT);
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(*sbus_usb_intr)(sbus_usb_context);
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}
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(*sbus_pcmcia_intr_reinstall)();
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return (1);
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}
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int
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sbus_spurious_intr(void *arg)
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{
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printf("spurious interrupt.\n");
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return (1);
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}
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/* SCPH-18000 */
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void
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sbus_type2_pcmcia_intr_clear()
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{
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if (_reg_read_2(SBUS_PCMCIA_CSC1_REG16) & 0x080)
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_reg_write_2(SBUS_PCMCIA_CSC1_REG16, 0xffff);
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}
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void
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sbus_type2_pcmcia_intr_enable()
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{
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_reg_write_2(SBUS_PCMCIA_TIMR_REG16, 0);
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}
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void
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sbus_type2_pcmcia_intr_disable()
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{
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_reg_write_2(SBUS_PCMCIA_TIMR_REG16, 1);
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}
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void
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sbus_type2_pcmcia_intr_reinstall()
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{
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u_int16_t r = _reg_read_2(SBUS_PCMCIA_TIMR_REG16);
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_reg_write_2(SBUS_PCMCIA_TIMR_REG16, 1);
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_reg_write_2(SBUS_PCMCIA_TIMR_REG16, r);
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}
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/* SCPH-30000/35000 */
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void
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sbus_type3_pcmcia_intr_clear()
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{
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/* nothing */
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}
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void
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sbus_type3_pcmcia_intr_enable()
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{
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_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 0);
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}
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void
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sbus_type3_pcmcia_intr_disable()
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{
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_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 1);
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}
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void
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sbus_type3_pcmcia_intr_reinstall()
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{
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u_int16_t r = _reg_read_2(SBUS_PCMCIA3_TIMR_REG16);
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_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 1);
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_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, r);
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}
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