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-rw-r--r--arch/m68k/mac/baboon.c42
-rw-r--r--arch/m68k/mac/config.c3
-rw-r--r--arch/m68k/mac/debug.c1
-rw-r--r--arch/m68k/mac/macints.c9
-rw-r--r--arch/m68k/mac/misc.c16
-rw-r--r--arch/m68k/mac/oss.c1
-rw-r--r--arch/m68k/mac/via.c80
7 files changed, 77 insertions, 75 deletions
diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c
index c7b25b0aacff..245d16d078ad 100644
--- a/arch/m68k/mac/baboon.c
+++ b/arch/m68k/mac/baboon.c
@@ -18,11 +18,14 @@
#include <asm/macints.h>
#include <asm/mac_baboon.h>
-/* #define DEBUG_BABOON */
/* #define DEBUG_IRQS */
+extern void mac_enable_irq(unsigned int);
+extern void mac_disable_irq(unsigned int);
+
int baboon_present;
static volatile struct baboon *baboon;
+static unsigned char baboon_disabled;
#if 0
extern int macide_ack_intr(struct ata_channel *);
@@ -88,34 +91,51 @@ static irqreturn_t baboon_irq(int irq, void *dev_id)
void __init baboon_register_interrupts(void)
{
- request_irq(IRQ_NUBUS_C, baboon_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
- "baboon", (void *) baboon);
+ baboon_disabled = 0;
+ request_irq(IRQ_NUBUS_C, baboon_irq, 0, "baboon", (void *)baboon);
}
-void baboon_irq_enable(int irq) {
+/*
+ * The means for masking individual baboon interrupts remains a mystery, so
+ * enable the umbrella interrupt only when no baboon interrupt is disabled.
+ */
+
+void baboon_irq_enable(int irq)
+{
+ int irq_idx = IRQ_IDX(irq);
+
#ifdef DEBUG_IRQUSE
printk("baboon_irq_enable(%d)\n", irq);
#endif
- /* FIXME: figure out how to mask and unmask baboon interrupt sources */
- enable_irq(IRQ_NUBUS_C);
+
+ baboon_disabled &= ~(1 << irq_idx);
+ if (!baboon_disabled)
+ mac_enable_irq(IRQ_NUBUS_C);
}
-void baboon_irq_disable(int irq) {
+void baboon_irq_disable(int irq)
+{
+ int irq_idx = IRQ_IDX(irq);
+
#ifdef DEBUG_IRQUSE
printk("baboon_irq_disable(%d)\n", irq);
#endif
- disable_irq(IRQ_NUBUS_C);
+
+ baboon_disabled |= 1 << irq_idx;
+ if (baboon_disabled)
+ mac_disable_irq(IRQ_NUBUS_C);
}
-void baboon_irq_clear(int irq) {
- int irq_idx = IRQ_IDX(irq);
+void baboon_irq_clear(int irq)
+{
+ int irq_idx = IRQ_IDX(irq);
baboon->mb_ifr &= ~(1 << irq_idx);
}
int baboon_irq_pending(int irq)
{
- int irq_idx = IRQ_IDX(irq);
+ int irq_idx = IRQ_IDX(irq);
return baboon->mb_ifr & (1 << irq_idx);
}
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index c45e18449f32..8819b97be324 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -162,10 +162,7 @@ void __init config_mac(void)
mach_init_IRQ = mac_init_IRQ;
mach_get_model = mac_get_model;
mach_gettimeoffset = mac_gettimeoffset;
-#warning move to adb/via init
-#if 0
mach_hwclk = mac_hwclk;
-#endif
mach_set_clock_mmss = mac_set_clock_mmss;
mach_reset = mac_reset;
mach_halt = mac_poweroff;
diff --git a/arch/m68k/mac/debug.c b/arch/m68k/mac/debug.c
index 2165740786a5..65dd77a742a3 100644
--- a/arch/m68k/mac/debug.c
+++ b/arch/m68k/mac/debug.c
@@ -24,7 +24,6 @@
#define BOOTINFO_COMPAT_1_0
#include <asm/setup.h>
#include <asm/bootinfo.h>
-#include <asm/machw.h>
#include <asm/macints.h>
extern unsigned long mac_videobase;
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index ecddac4a02b9..82e560c076ce 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -127,7 +127,6 @@
#include <asm/irq.h>
#include <asm/traps.h>
#include <asm/bootinfo.h>
-#include <asm/machw.h>
#include <asm/macintosh.h>
#include <asm/mac_via.h>
#include <asm/mac_psc.h>
@@ -215,8 +214,8 @@ irqreturn_t mac_debug_handler(int, void *);
/* #define DEBUG_MACINTS */
-static void mac_enable_irq(unsigned int irq);
-static void mac_disable_irq(unsigned int irq);
+void mac_enable_irq(unsigned int irq);
+void mac_disable_irq(unsigned int irq);
static struct irq_controller mac_irq_controller = {
.name = "mac",
@@ -275,7 +274,7 @@ void __init mac_init_IRQ(void)
* These routines are just dispatchers to the VIA/OSS/PSC routines.
*/
-static void mac_enable_irq(unsigned int irq)
+void mac_enable_irq(unsigned int irq)
{
int irq_src = IRQ_SRC(irq);
@@ -308,7 +307,7 @@ static void mac_enable_irq(unsigned int irq)
}
}
-static void mac_disable_irq(unsigned int irq)
+void mac_disable_irq(unsigned int irq)
{
int irq_src = IRQ_SRC(irq);
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 56d1f5676ade..a44c7086ab39 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -93,7 +93,7 @@ static void cuda_write_pram(int offset, __u8 data)
#define cuda_write_pram NULL
#endif
-#ifdef CONFIG_ADB_PMU68K
+#if 0 /* def CONFIG_ADB_PMU68K */
static long pmu_read_time(void)
{
struct adb_request req;
@@ -148,7 +148,7 @@ static void pmu_write_pram(int offset, __u8 data)
#define pmu_write_pram NULL
#endif
-#ifdef CONFIG_ADB_MACIISI
+#if 0 /* def CONFIG_ADB_MACIISI */
extern int maciisi_request(struct adb_request *req,
void (*done)(struct adb_request *), int nbytes, ...);
@@ -717,13 +717,18 @@ int mac_hwclk(int op, struct rtc_time *t)
unmktime(now, 0,
&t->tm_year, &t->tm_mon, &t->tm_mday,
&t->tm_hour, &t->tm_min, &t->tm_sec);
+#if 0
printk("mac_hwclk: read %04d-%02d-%-2d %02d:%02d:%02d\n",
- t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
+ t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
+ t->tm_hour, t->tm_min, t->tm_sec);
+#endif
} else { /* write */
+#if 0
printk("mac_hwclk: tried to write %04d-%02d-%-2d %02d:%02d:%02d\n",
- t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
+ t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
+ t->tm_hour, t->tm_min, t->tm_sec);
+#endif
-#if 0 /* it trashes my rtc */
now = mktime(t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
t->tm_hour, t->tm_min, t->tm_sec);
@@ -742,7 +747,6 @@ int mac_hwclk(int op, struct rtc_time *t)
case MAC_ADB_IISI:
maciisi_write_time(now);
}
-#endif
}
return 0;
}
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index 43d83e054b8e..8426501119ca 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -21,7 +21,6 @@
#include <linux/init.h>
#include <asm/bootinfo.h>
-#include <asm/machw.h>
#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/mac_via.h>
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 1bdb03c73c0f..f01d418e64fe 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -32,15 +32,10 @@
#include <asm/bootinfo.h>
#include <asm/macintosh.h>
#include <asm/macints.h>
-#include <asm/machw.h>
#include <asm/mac_via.h>
#include <asm/mac_psc.h>
volatile __u8 *via1, *via2;
-#if 0
-/* See note in mac_via.h about how this is possibly not useful */
-volatile long *via_memory_bogon=(long *)&via_memory_bogon;
-#endif
int rbv_present;
int via_alt_mapping;
EXPORT_SYMBOL(via_alt_mapping);
@@ -66,7 +61,7 @@ static int gIER,gIFR,gBufA,gBufB;
#define MAC_CLOCK_LOW (MAC_CLOCK_TICK&0xFF)
#define MAC_CLOCK_HIGH (MAC_CLOCK_TICK>>8)
-/* To disable a NuBus slot on Quadras we make the slot IRQ lines outputs, set
+/* To disable a NuBus slot on Quadras we make that slot IRQ line an output set
* high. On RBV we just use the slot interrupt enable register. On Macs with
* genuine VIA chips we must use nubus_disabled to keep track of disabled slot
* interrupts. When any slot IRQ is disabled we mask the (edge triggered) CA1
@@ -180,7 +175,7 @@ void __init via_init(void)
via1[vT1CH] = 0;
via1[vT2CL] = 0;
via1[vT2CH] = 0;
- via1[vACR] &= 0x3F;
+ via1[vACR] &= ~0xC0; /* setup T1 timer with no PB7 output */
via1[vACR] &= ~0x03; /* disable port A & B latches */
/*
@@ -203,40 +198,41 @@ void __init via_init(void)
/* Everything below this point is VIA2/RBV only... */
- if (oss_present) return;
+ if (oss_present)
+ return;
-#if 1
/* Some machines support an alternate IRQ mapping that spreads */
/* Ethernet and Sound out to their own autolevel IRQs and moves */
/* VIA1 to level 6. A/UX uses this mapping and we do too. Note */
/* that the IIfx emulates this alternate mapping using the OSS. */
- switch(macintosh_config->ident) {
- case MAC_MODEL_P475:
- case MAC_MODEL_P475F:
- case MAC_MODEL_P575:
- case MAC_MODEL_Q605:
- case MAC_MODEL_Q605_ACC:
- case MAC_MODEL_C610:
- case MAC_MODEL_Q610:
- case MAC_MODEL_Q630:
- case MAC_MODEL_C650:
- case MAC_MODEL_Q650:
- case MAC_MODEL_Q700:
- case MAC_MODEL_Q800:
- case MAC_MODEL_Q900:
- case MAC_MODEL_Q950:
+ via_alt_mapping = 0;
+ if (macintosh_config->via_type == MAC_VIA_QUADRA)
+ switch (macintosh_config->ident) {
+ case MAC_MODEL_C660:
+ case MAC_MODEL_Q840:
+ /* not applicable */
+ break;
+ case MAC_MODEL_P588:
+ case MAC_MODEL_TV:
+ case MAC_MODEL_PB140:
+ case MAC_MODEL_PB145:
+ case MAC_MODEL_PB160:
+ case MAC_MODEL_PB165:
+ case MAC_MODEL_PB165C:
+ case MAC_MODEL_PB170:
+ case MAC_MODEL_PB180:
+ case MAC_MODEL_PB180C:
+ case MAC_MODEL_PB190:
+ case MAC_MODEL_PB520:
+ /* not yet tested */
+ break;
+ default:
via_alt_mapping = 1;
via1[vDirB] |= 0x40;
via1[vBufB] &= ~0x40;
break;
- default:
- via_alt_mapping = 0;
- break;
- }
-#else
- via_alt_mapping = 0;
-#endif
+ }
/*
* Now initialize VIA2. For RBV we just kill all interrupts;
@@ -252,14 +248,17 @@ void __init via_init(void)
via2[vT1CH] = 0;
via2[vT2CL] = 0;
via2[vT2CH] = 0;
- via2[vACR] &= 0x3F;
+ via2[vACR] &= ~0xC0; /* setup T1 timer with no PB7 output */
via2[vACR] &= ~0x03; /* disable port A & B latches */
}
/*
- * Set vPCR for SCSI interrupts (but not on RBV)
+ * Set vPCR for control line interrupts (but not on RBV)
*/
if (!rbv_present) {
+ /* For all VIA types, CA1 (SLOTS IRQ) and CB1 (ASC IRQ)
+ * are made negative edge triggered here.
+ */
if (macintosh_config->scsi_type == MAC_SCSI_OLD) {
/* CB2 (IRQ) indep. input, positive edge */
/* CA2 (DRQ) indep. input, positive edge */
@@ -466,21 +465,6 @@ irqreturn_t via1_irq(int irq, void *dev_id)
++irq_num;
irq_bit <<= 1;
} while (events >= irq_bit);
-
-#if 0 /* freakin' pmu is doing weird stuff */
- if (!oss_present) {
- /* This (still) seems to be necessary to get IDE
- working. However, if you enable VBL interrupts,
- you're screwed... */
- /* FIXME: should we check the SLOTIRQ bit before
- pulling this stunt? */
- /* No, it won't be set. that's why we're doing this. */
- via_irq_disable(IRQ_MAC_NUBUS);
- via_irq_clear(IRQ_MAC_NUBUS);
- m68k_handle_int(IRQ_MAC_NUBUS);
- via_irq_enable(IRQ_MAC_NUBUS);
- }
-#endif
return IRQ_HANDLED;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.