Handle the IRQ for the reset button.

3 files changed, 35 insertions, 2 deletions

diff --git a/sys/powerpc/wii/wii_bus.c b/sys/powerpc/wii/wii_bus.c
index 1107f7b..5277988 100644
--- a/sys/powerpc/wii/wii_bus.c
+++ b/sys/powerpc/wii/wii_bus.c
@@ -157,7 +157,7 @@ wiibus_attach(device_t self)
 	/* Nintendo PIC */
 	dinfo = malloc(sizeof(*dinfo), M_WIIBUS, M_WAITOK | M_ZERO);
 	wiibus_init_device_resources(&sc->sc_rman, dinfo, 0, WIIPIC_REG_ADDR,
-	    WIIPIC_REG_LEN, 0);
+	    WIIPIC_REG_LEN, 1);
 	cdev = BUS_ADD_CHILD(self, 0, "wiipic", 0);
 	device_set_ivars(cdev, dinfo);
 
diff --git a/sys/powerpc/wii/wii_pic.c b/sys/powerpc/wii/wii_pic.c
index 07987c0..0844a00 100644
--- a/sys/powerpc/wii/wii_pic.c
+++ b/sys/powerpc/wii/wii_pic.c
@@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/kernel.h>
 #include <sys/malloc.h>
 #include <sys/rman.h>
+#include <sys/reboot.h>
 
 #include <machine/bus.h>
 #include <machine/platform.h>
@@ -51,6 +52,7 @@ static void	wiipic_enable(device_t, unsigned int, unsigned int);
 static void	wiipic_eoi(device_t, unsigned int);
 static void	wiipic_mask(device_t, unsigned int);
 static void	wiipic_unmask(device_t, unsigned int);
+static void	wiipic_intr(void *);
 
 struct wiipic_softc {
 	device_t		 sc_dev;
@@ -58,6 +60,9 @@ struct wiipic_softc {
 	bus_space_tag_t		 sc_bt;
 	bus_space_handle_t	 sc_bh;
 	int			 sc_rrid;
+	int			 sc_irqid;
+	struct resource		*sc_irq;
+	void			*sc_irqctx;
 	int			 sc_vector[WIIPIC_NIRQ];
 };
 
@@ -146,6 +151,19 @@ wiipic_attach(device_t dev)
 
 	powerpc_register_pic(dev, 0, WIIPIC_NIRQ, 0, FALSE);
 
+	/*
+	 * Setup the interrupt handler.
+	 */
+	sc->sc_irqid = 0;
+	sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irqid,
+	    RF_ACTIVE);
+	if (sc->sc_irq == NULL) {
+		device_printf(dev, "could not alloc IRQ resource\n");
+		return (ENXIO);
+	}
+	bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE,
+	    NULL, wiipic_intr, sc, &sc->sc_irqctx);
+
 	return (0);
 }
 
@@ -210,3 +228,17 @@ wiipic_unmask(device_t dev, unsigned int irq)
 	imr |= (1 << irq);
 	wiipic_imr_write(sc, imr);
 }
+
+/*
+ * Reset button interrupt.
+ */
+static void
+wiipic_intr(void *xsc)
+{
+	struct wiipic_softc *sc;
+
+	sc = (struct wiipic_softc *)xsc;
+	if (wiipic_icr_read(sc) & WIIPIC_RBS)
+		shutdown_nice(RB_AUTOBOOT);
+}
+
diff --git a/sys/powerpc/wii/wii_picreg.h b/sys/powerpc/wii/wii_picreg.h
index 085fc62..9e0a7e2 100644
--- a/sys/powerpc/wii/wii_picreg.h
+++ b/sys/powerpc/wii/wii_picreg.h
@@ -30,9 +30,10 @@
 #define	_POWERPC_WII_WII_PICREG_H
 
 #define	WIIPIC_REG_ADDR		0x0c003000
-#define	WIIPIC_REG_LEN		0x08
+#define	WIIPIC_REG_LEN		0x28
 
 #define	WIIPIC_ICR		0x00
+#define	WIIPIC_RBS		0x10000
 #define	WIIPIC_IMR		0x04
 #define	WIIPIC_RESET		0x24