NetBSD/sys/arch/playstation2/dev/sbus.c

313 lines
7.5 KiB
C

/* $NetBSD: sbus.c,v 1.6 2003/07/15 02:54:36 lukem Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* PlayStation 2 internal PCMCIA/USB interface unit.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sbus.c,v 1.6 2003/07/15 02:54:36 lukem Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <machine/bootinfo.h>
#include <machine/autoconf.h>
#include <playstation2/playstation2/interrupt.h>
#include <playstation2/ee/eevar.h>
#include <playstation2/ee/intcvar.h>
#include <playstation2/dev/sbusvar.h>
#include <playstation2/dev/sbusreg.h>
#ifdef DEBUG
#define STATIC
#else
#define STATIC static
#endif
STATIC void sbus_type2_pcmcia_intr_clear(void);
STATIC void sbus_type2_pcmcia_intr_enable(void);
STATIC void sbus_type2_pcmcia_intr_disable(void);
STATIC void sbus_type2_pcmcia_intr_reinstall(void);
STATIC void sbus_type3_pcmcia_intr_clear(void);
STATIC void sbus_type3_pcmcia_intr_enable(void);
STATIC void sbus_type3_pcmcia_intr_disable(void);
STATIC void sbus_type3_pcmcia_intr_reinstall(void);
STATIC int sbus_spurious_intr(void *);
STATIC void (*sbus_pcmcia_intr_clear)(void);
STATIC void (*sbus_pcmcia_intr_enable)(void);
STATIC void (*sbus_pcmcia_intr_disable)(void);
STATIC void (*sbus_pcmcia_intr_reinstall)(void);
STATIC int (*sbus_pcmcia_intr)(void *) = sbus_spurious_intr;
STATIC void *sbus_pcmcia_context;
STATIC int (*sbus_usb_intr)(void *) = sbus_spurious_intr;
STATIC void *sbus_usb_context;
STATIC void sbus_init(int);
STATIC int sbus_intr(void *);
STATIC int sbus_match(struct device *, struct cfdata *, void *);
STATIC void sbus_attach(struct device *, struct device *, void *);
STATIC int sbus_search(struct device *, struct cfdata *, void *);
STATIC int sbus_print(void *, const char *);
CFATTACH_DECL(sbus, sizeof (struct device),
sbus_match, sbus_attach, NULL, NULL);
extern struct cfdriver sbus_cd;
STATIC int __sbus_attached;
int
sbus_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct mainbus_attach_args *ma = aux;
if (strcmp(ma->ma_name, sbus_cd.cd_name) != 0)
return (0);
return (!__sbus_attached);
}
void
sbus_attach(struct device *parent, struct device *self, void *aux)
{
int type = BOOTINFO_REF(BOOTINFO_PCMCIA_TYPE);
printf(": controller type %d\n", type);
/* Initialize SBUS controller */
sbus_init(type);
config_search(sbus_search, self, 0);
}
int
sbus_search(struct device *parent, struct cfdata *cf, void *aux)
{
struct sbus_attach_args sa;
if (config_match(parent, cf, &sa))
config_attach(parent, cf, &sa, sbus_print);
return (0);
}
int
sbus_print(void *aux, const char *pnp)
{
return (pnp ? QUIET : UNCONF);
}
void
sbus_init(int type)
{
/* install model dependent hook */
#define SET_PCMCIA_INTR_OPS(x) \
sbus_pcmcia_intr_clear = sbus_type##x##_pcmcia_intr_clear; \
sbus_pcmcia_intr_enable = sbus_type##x##_pcmcia_intr_enable; \
sbus_pcmcia_intr_disable = sbus_type##x##_pcmcia_intr_disable; \
sbus_pcmcia_intr_reinstall = sbus_type##x##_pcmcia_intr_reinstall
switch (type) {
default:
panic("unknown pcmcia controller type = %d", type);
break;
case 0:
/* FALLTHROUGH */
case 1:
/* FALLTHROUGH */
case 2:
SET_PCMCIA_INTR_OPS(2);
break;
case 3:
SET_PCMCIA_INTR_OPS(3);
break;
}
#undef SET_PCMCIA_INTR_OPS
/* disable interrupt */
(*sbus_pcmcia_intr_disable)();
/* clear interrupt */
(*sbus_pcmcia_intr_clear)();
_reg_write_4(SBUS_SMFLG_REG, SMFLG_PCMCIA_INT);
_reg_write_4(SBUS_SMFLG_REG, SMFLG_USB_INT);
/* connect to INTC */
intc_intr_establish(I_CH1_SBUS, IPL_BIO, sbus_intr, 0);
}
void *
sbus_intr_establish(enum sbus_irq irq, int (*ih_func)(void *), void *ih_arg)
{
switch (irq) {
default:
panic("unknown IRQ");
break;
case SBUS_IRQ_PCMCIA:
sbus_pcmcia_intr = ih_func;
sbus_pcmcia_context = ih_arg;
(*sbus_pcmcia_intr_enable)();
break;
case SBUS_IRQ_USB:
sbus_usb_intr = ih_func;
sbus_usb_context = ih_arg;
break;
}
return (void *)irq;
}
void
sbus_intr_disestablish(void *handle)
{
int irq = (int)handle;
switch (irq) {
default:
panic("unknown IRQ");
break;
case SBUS_IRQ_PCMCIA:
sbus_pcmcia_intr = sbus_spurious_intr;
(*sbus_pcmcia_intr_disable)();
break;
case SBUS_IRQ_USB:
sbus_usb_intr = sbus_spurious_intr;
break;
}
}
int
sbus_intr(void *arg)
{
u_int32_t stat;
_playstation2_evcnt.sbus.ev_count++;
stat = _reg_read_4(SBUS_SMFLG_REG);
if (stat & SMFLG_PCMCIA_INT) {
(*sbus_pcmcia_intr_clear)();
_reg_write_4(SBUS_SMFLG_REG, SMFLG_PCMCIA_INT);
(*sbus_pcmcia_intr)(sbus_pcmcia_context);
}
if (stat & SMFLG_USB_INT) {
_reg_write_4(SBUS_SMFLG_REG, SMFLG_USB_INT);
(*sbus_usb_intr)(sbus_usb_context);
}
(*sbus_pcmcia_intr_reinstall)();
return (1);
}
int
sbus_spurious_intr(void *arg)
{
printf("spurious interrupt.\n");
return (1);
}
/* SCPH-18000 */
void
sbus_type2_pcmcia_intr_clear()
{
if (_reg_read_2(SBUS_PCMCIA_CSC1_REG16) & 0x080)
_reg_write_2(SBUS_PCMCIA_CSC1_REG16, 0xffff);
}
void
sbus_type2_pcmcia_intr_enable()
{
_reg_write_2(SBUS_PCMCIA_TIMR_REG16, 0);
}
void
sbus_type2_pcmcia_intr_disable()
{
_reg_write_2(SBUS_PCMCIA_TIMR_REG16, 1);
}
void
sbus_type2_pcmcia_intr_reinstall()
{
u_int16_t r = _reg_read_2(SBUS_PCMCIA_TIMR_REG16);
_reg_write_2(SBUS_PCMCIA_TIMR_REG16, 1);
_reg_write_2(SBUS_PCMCIA_TIMR_REG16, r);
}
/* SCPH-30000/35000 */
void
sbus_type3_pcmcia_intr_clear()
{
/* nothing */
}
void
sbus_type3_pcmcia_intr_enable()
{
_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 0);
}
void
sbus_type3_pcmcia_intr_disable()
{
_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 1);
}
void
sbus_type3_pcmcia_intr_reinstall()
{
u_int16_t r = _reg_read_2(SBUS_PCMCIA3_TIMR_REG16);
_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 1);
_reg_write_2(SBUS_PCMCIA3_TIMR_REG16, r);
}