Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 169 insertions, 0 deletions

diff --git a/include/asm-m68k/macints.h b/include/asm-m68k/macints.h
new file mode 100644
index 000000000000..fd8c3a9fea4d
--- /dev/null
+++ b/include/asm-m68k/macints.h
@@ -0,0 +1,169 @@
+/*
+** macints.h -- Macintosh Linux interrupt handling structs and prototypes
+**
+** Copyright 1997 by Michael Schmitz
+**
+** This file is subject to the terms and conditions of the GNU General Public
+** License.  See the file COPYING in the main directory of this archive
+** for more details.
+**
+*/
+
+#ifndef _ASM_MACINTS_H_
+#define _ASM_MACINTS_H_
+
+#include <asm/irq.h>
+
+/* Setting this prints debugging info for unclaimed interrupts */
+
+#define DEBUG_SPURIOUS
+
+/* Setting this prints debugging info on each autovector interrupt */
+
+/* #define DEBUG_IRQS */
+
+/* Setting this prints debugging info on each Nubus interrupt */
+
+/* #define DEBUG_NUBUS_INT */
+
+/* Setting this prints debugging info on irqs as they enabled and disabled. */
+
+/* #define DEBUG_IRQUSE */
+
+/*
+ * Base IRQ number for all Mac68K interrupt sources. Each source
+ * has eight indexes (base -> base+7).
+ */
+
+#define VIA1_SOURCE_BASE	8
+#define VIA2_SOURCE_BASE	16
+#define MAC_SCC_SOURCE_BASE	24
+#define PSC3_SOURCE_BASE	24
+#define PSC4_SOURCE_BASE	32
+#define PSC5_SOURCE_BASE	40
+#define PSC6_SOURCE_BASE	48
+#define NUBUS_SOURCE_BASE	56
+#define BABOON_SOURCE_BASE	64
+
+/*
+ * Maximum IRQ number is BABOON_SOURCE_BASE + 7,
+ * giving us IRQs up through 71
+ */
+
+#define NUM_MAC_SOURCES		72
+
+/*
+ * clean way to separate IRQ into its source and index
+ */
+
+#define IRQ_SRC(irq)	(irq >> 3)
+#define	IRQ_IDX(irq)	(irq & 7)
+
+#define	IRQ_SPURIOUS      (0)
+
+/* auto-vector interrupts */
+#define IRQ_AUTO_1        (1)
+#define IRQ_AUTO_2        (2)
+#define IRQ_AUTO_3        (3)
+#define IRQ_AUTO_4        (4)
+#define IRQ_AUTO_5        (5)
+#define IRQ_AUTO_6        (6)
+#define IRQ_AUTO_7        (7)
+
+/* VIA1 interrupts */
+#define IRQ_VIA1_0	  (8)		/* one second int. */
+#define IRQ_VIA1_1        (9)		/* VBlank int. */
+#define IRQ_MAC_VBL	  IRQ_VIA1_1
+#define IRQ_VIA1_2	  (10)		/* ADB SR shifts complete */
+#define IRQ_MAC_ADB	  IRQ_VIA1_2
+#define IRQ_MAC_ADB_SR	  IRQ_VIA1_2
+#define IRQ_VIA1_3	  (11)		/* ADB SR CB2 ?? */
+#define IRQ_MAC_ADB_SD	  IRQ_VIA1_3
+#define IRQ_VIA1_4        (12)		/* ADB SR ext. clock pulse */
+#define IRQ_MAC_ADB_CL	  IRQ_VIA1_4
+#define IRQ_VIA1_5	  (13)
+#define IRQ_MAC_TIMER_2	  IRQ_VIA1_5
+#define IRQ_VIA1_6	  (14)
+#define IRQ_MAC_TIMER_1	  IRQ_VIA1_6
+#define IRQ_VIA1_7        (15)
+
+/* VIA2/RBV interrupts */
+#define IRQ_VIA2_0	  (16)
+#define IRQ_MAC_SCSIDRQ	  IRQ_VIA2_0
+#define IRQ_VIA2_1        (17)
+#define IRQ_MAC_NUBUS	  IRQ_VIA2_1
+#define IRQ_VIA2_2	  (18)
+#define IRQ_VIA2_3	  (19)
+#define IRQ_MAC_SCSI	  IRQ_VIA2_3
+#define IRQ_VIA2_4        (20)
+#define IRQ_VIA2_5	  (21)
+#define IRQ_VIA2_6	  (22)
+#define IRQ_VIA2_7        (23)
+
+/* Level 3 (PSC, AV Macs only) interrupts */
+#define IRQ_PSC3_0	  (24)
+#define IRQ_MAC_MACE	  IRQ_PSC3_0
+#define IRQ_PSC3_1	  (25)
+#define IRQ_PSC3_2	  (26)
+#define IRQ_PSC3_3	  (27)
+
+/* Level 4 (SCC) interrupts */
+#define IRQ_SCC		     (32)
+#define IRQ_SCCA	     (33)
+#define IRQ_SCCB	     (34)
+#if 0 /* FIXME: are there multiple interrupt conditions on the SCC ?? */
+/* SCC interrupts */
+#define IRQ_SCCB_TX	     (32)
+#define IRQ_SCCB_STAT	     (33)
+#define IRQ_SCCB_RX	     (34)
+#define IRQ_SCCB_SPCOND	     (35)
+#define IRQ_SCCA_TX	     (36)
+#define IRQ_SCCA_STAT	     (37)
+#define IRQ_SCCA_RX	     (38)
+#define IRQ_SCCA_SPCOND	     (39)
+#endif
+
+/* Level 4 (PSC, AV Macs only) interrupts */
+#define IRQ_PSC4_0	  (32)
+#define IRQ_PSC4_1	  (33)
+#define IRQ_PSC4_2	  (34)
+#define IRQ_PSC4_3	  (35)
+#define IRQ_MAC_MACE_DMA  IRQ_PSC4_3
+
+/* Level 5 (PSC, AV Macs only) interrupts */
+#define IRQ_PSC5_0	  (40)
+#define IRQ_PSC5_1	  (41)
+#define IRQ_PSC5_2	  (42)
+#define IRQ_PSC5_3	  (43)
+
+/* Level 6 (PSC, AV Macs only) interrupts */
+#define IRQ_PSC6_0	  (48)
+#define IRQ_PSC6_1	  (49)
+#define IRQ_PSC6_2	  (50)
+#define IRQ_PSC6_3	  (51)
+
+/* Nubus interrupts (cascaded to VIA2) */
+#define IRQ_NUBUS_9	  (56)
+#define IRQ_NUBUS_A	  (57)
+#define IRQ_NUBUS_B	  (58)
+#define IRQ_NUBUS_C	  (59)
+#define IRQ_NUBUS_D	  (60)
+#define IRQ_NUBUS_E	  (61)
+#define IRQ_NUBUS_F	  (62)
+
+/* Baboon interrupts (cascaded to nubus slot $C) */
+#define IRQ_BABOON_0	  (64)
+#define IRQ_BABOON_1	  (65)
+#define IRQ_BABOON_2	  (66)
+#define IRQ_BABOON_3	  (67)
+
+#define SLOT2IRQ(x)	  (x + 47)
+#define IRQ2SLOT(x)	  (x - 47)
+
+#define INT_CLK   24576	    /* CLK while int_clk =2.456MHz and divide = 100 */
+#define INT_TICKS 246	    /* to make sched_time = 99.902... HZ */
+
+extern irq_node_t *mac_irq_list[NUM_MAC_SOURCES];
+extern void mac_do_irq_list(int irq, struct pt_regs *);
+
+#endif /* asm/macints.h */