From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
 arch/h8300/platform/h8300h/irq.c | 82 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 arch/h8300/platform/h8300h/irq.c

(limited to 'arch/h8300/platform/h8300h/irq.c')

diff --git a/arch/h8300/platform/h8300h/irq.c b/arch/h8300/platform/h8300h/irq.c
new file mode 100644
index 00000000..bc4f51bc
--- /dev/null
+++ b/arch/h8300/platform/h8300h/irq.c
@@ -0,0 +1,82 @@
+/*
+ * Interrupt handling H8/300H depend.
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <asm/ptrace.h>
+#include <asm/traps.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/gpio-internal.h>
+#include <asm/regs306x.h>
+
+const int __initdata h8300_saved_vectors[] = {
+#if defined(CONFIG_GDB_DEBUG)
+	TRAP3_VEC,	/* TRAPA #3 is GDB breakpoint */
+#endif
+	-1,
+};
+
+const h8300_vector __initdata h8300_trap_table[] = {
+	0, 0, 0, 0, 0, 0, 0, 0,
+	system_call,
+	0,
+	0,
+	trace_break,
+};
+
+int h8300_enable_irq_pin(unsigned int irq)
+{
+	int bitmask;
+	if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
+		return 0;
+
+	/* initialize IRQ pin */
+	bitmask = 1 << (irq - EXT_IRQ0);
+	switch(irq) {
+	case EXT_IRQ0:
+	case EXT_IRQ1:
+	case EXT_IRQ2:
+	case EXT_IRQ3:
+		if (H8300_GPIO_RESERVE(H8300_GPIO_P8, bitmask) == 0)
+			return -EBUSY;
+		H8300_GPIO_DDR(H8300_GPIO_P8, bitmask, H8300_GPIO_INPUT);
+		break;
+	case EXT_IRQ4:
+	case EXT_IRQ5:
+		if (H8300_GPIO_RESERVE(H8300_GPIO_P9, bitmask) == 0)
+			return -EBUSY;
+		H8300_GPIO_DDR(H8300_GPIO_P9, bitmask, H8300_GPIO_INPUT);
+		break;
+	}
+
+	return 0;
+}
+
+void h8300_disable_irq_pin(unsigned int irq)
+{
+	int bitmask;
+	if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
+		return;
+
+	/* disable interrupt & release IRQ pin */
+	bitmask = 1 << (irq - EXT_IRQ0);
+	switch(irq) {
+	case EXT_IRQ0:
+	case EXT_IRQ1:
+	case EXT_IRQ2:
+	case EXT_IRQ3:
+		*(volatile unsigned char *)IER &= ~bitmask;
+		H8300_GPIO_FREE(H8300_GPIO_P8, bitmask);
+		break ;
+	case EXT_IRQ4:
+	case EXT_IRQ5:
+		*(volatile unsigned char *)IER &= ~bitmask;
+		H8300_GPIO_FREE(H8300_GPIO_P9, bitmask);
+		break;
+	}
+}
-- 
cgit