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!
diff --git a/include/asm-v850/gbus_int.h b/include/asm-v850/gbus_int.h
new file mode 100644
index 0000000..0c4bce7
--- /dev/null
+++ b/include/asm-v850/gbus_int.h
@@ -0,0 +1,97 @@
+/*
+ * include/asm-v850/gbus_int.h -- Midas labs GBUS interrupt support
+ *
+ * Copyright (C) 2001,02 NEC Corporation
+ * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef __V850_GBUS_INT_H__
+#define __V850_GBUS_INT_H__
+
+
+/* The GBUS interrupt interface has 32 interrupts shared among 4
+ processor interrupts. The 32 GBUS interrupts are divided into two
+ sets of 16 each, for allocating among control registers, etc (there
+ are two of each control register, with bits 0-15 controlling an
+ interrupt each). */
+
+/* The GBUS interrupts themselves. */
+#define IRQ_GBUS_INT(n) (GBUS_INT_BASE_IRQ + (n))
+#define IRQ_GBUS_INT_NUM 32
+
+/* Control registers. */
+#define GBUS_INT_STATUS_ADDR(w) (GBUS_INT_BASE_ADDR + (w)*0x40)
+#define GBUS_INT_STATUS(w) (*(volatile u16 *)GBUS_INT_STATUS_ADDR(w))
+#define GBUS_INT_CLEAR_ADDR(w) (GBUS_INT_BASE_ADDR + 0x10 + (w)*0x40)
+#define GBUS_INT_CLEAR(w) (*(volatile u16 *)GBUS_INT_CLEAR_ADDR(w))
+#define GBUS_INT_EDGE_ADDR(w) (GBUS_INT_BASE_ADDR + 0x20 + (w)*0x40)
+#define GBUS_INT_EDGE(w) (*(volatile u16 *)GBUS_INT_EDGE_ADDR(w))
+#define GBUS_INT_POLARITY_ADDR(w) (GBUS_INT_BASE_ADDR + 0x30 + (w)*0x40)
+#define GBUS_INT_POLARITY(w) (*(volatile u16 *)GBUS_INT_POLARITY_ADDR(w))
+/* This allows enabling interrupt bits in word W for interrupt GINTn. */
+#define GBUS_INT_ENABLE_ADDR(w, n) \
+ (GBUS_INT_BASE_ADDR + 0x100 + (w)*0x10 + (n)*0x20)
+#define GBUS_INT_ENABLE(w, n) (*(volatile u16 *)GBUS_INT_ENABLE_ADDR(w, n))
+
+/* Mapping between kernel interrupt numbers and hardware control regs/bits. */
+#define GBUS_INT_BITS_PER_WORD 16
+#define GBUS_INT_NUM_WORDS (IRQ_GBUS_INT_NUM / GBUS_INT_BITS_PER_WORD)
+#define GBUS_INT_IRQ_WORD(irq) (((irq) - GBUS_INT_BASE_IRQ) >> 4)
+#define GBUS_INT_IRQ_BIT(irq) (((irq) - GBUS_INT_BASE_IRQ) & 0xF)
+#define GBUS_INT_IRQ_MASK(irq) (1 << GBUS_INT_IRQ_BIT(irq))
+
+
+/* Possible priorities for GBUS interrupts. */
+#define GBUS_INT_PRIORITY_HIGH 2
+#define GBUS_INT_PRIORITY_MEDIUM 4
+#define GBUS_INT_PRIORITY_LOW 6
+
+
+#ifndef __ASSEMBLY__
+
+/* Enable interrupt handling for interrupt IRQ. */
+extern void gbus_int_enable_irq (unsigned irq);
+/* Disable interrupt handling for interrupt IRQ. Note that any
+ interrupts received while disabled will be delivered once the
+ interrupt is enabled again, unless they are explicitly cleared using
+ `gbus_int_clear_pending_irq'. */
+extern void gbus_int_disable_irq (unsigned irq);
+/* Return true if interrupt handling for interrupt IRQ is enabled. */
+extern int gbus_int_irq_enabled (unsigned irq);
+/* Disable all GBUS irqs. */
+extern void gbus_int_disable_irqs (void);
+/* Clear any pending interrupts for IRQ. */
+extern void gbus_int_clear_pending_irq (unsigned irq);
+/* Return true if interrupt IRQ is pending (but disabled). */
+extern int gbus_int_irq_pending (unsigned irq);
+
+
+struct gbus_int_irq_init {
+ const char *name; /* name of interrupt type */
+
+ /* Range of kernel irq numbers for this type:
+ BASE, BASE+INTERVAL, ..., BASE+INTERVAL*NUM */
+ unsigned base, num, interval;
+
+ unsigned priority; /* interrupt priority to assign */
+};
+struct hw_interrupt_type; /* fwd decl */
+
+/* Initialize HW_IRQ_TYPES for GBUS irqs described in array
+ INITS (which is terminated by an entry with the name field == 0). */
+extern void gbus_int_init_irq_types (struct gbus_int_irq_init *inits,
+ struct hw_interrupt_type *hw_irq_types);
+
+/* Initialize GBUS interrupts. */
+extern void gbus_int_init_irqs (void);
+
+#endif /* !__ASSEMBLY__ */
+
+
+#endif /* __V850_GBUS_INT_H__ */