Linux-2.6.12-rc2v2.6.12-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, 122 insertions, 0 deletions

diff --git a/arch/sh/boards/renesas/hs7751rvoip/irq.c b/arch/sh/boards/renesas/hs7751rvoip/irq.c
new file mode 100644
index 000000000000..a7921f67a35f
--- /dev/null
+++ b/arch/sh/boards/renesas/hs7751rvoip/irq.c
@@ -0,0 +1,122 @@
+/*
+ * linux/arch/sh/boards/renesas/hs7751rvoip/irq.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Renesas Technology Sales HS7751RVoIP Support.
+ *
+ * Modified for HS7751RVoIP by
+ * Atom Create Engineering Co., Ltd. 2002.
+ * Lineo uSolutions, Inc. 2003.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+
+static int mask_pos[] = {8, 9, 10, 11, 12, 13, 0, 1, 2, 3, 4, 5, 6, 7};
+
+static void enable_hs7751rvoip_irq(unsigned int irq);
+static void disable_hs7751rvoip_irq(unsigned int irq);
+
+/* shutdown is same as "disable" */
+#define shutdown_hs7751rvoip_irq disable_hs7751rvoip_irq
+
+static void ack_hs7751rvoip_irq(unsigned int irq);
+static void end_hs7751rvoip_irq(unsigned int irq);
+
+static unsigned int startup_hs7751rvoip_irq(unsigned int irq)
+{
+        enable_hs7751rvoip_irq(irq);
+        return 0; /* never anything pending */
+}
+
+static void disable_hs7751rvoip_irq(unsigned int irq)
+{
+        unsigned long flags;
+        unsigned short val;
+        unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
+
+        /* Set the priority in IPR to 0 */
+        local_irq_save(flags);
+        val = ctrl_inw(IRLCNTR3);
+        val &= mask;
+        ctrl_outw(val, IRLCNTR3);
+        local_irq_restore(flags);
+}
+
+static void enable_hs7751rvoip_irq(unsigned int irq)
+{
+        unsigned long flags;
+        unsigned short val;
+        unsigned short value = (0x0001 << mask_pos[irq]);
+
+        /* Set priority in IPR back to original value */
+        local_irq_save(flags);
+        val = ctrl_inw(IRLCNTR3);
+        val |= value;
+        ctrl_outw(val, IRLCNTR3);
+        local_irq_restore(flags);
+}
+
+static void ack_hs7751rvoip_irq(unsigned int irq)
+{
+        disable_hs7751rvoip_irq(irq);
+}
+
+static void end_hs7751rvoip_irq(unsigned int irq)
+{
+        if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+                enable_hs7751rvoip_irq(irq);
+}
+
+static struct hw_interrupt_type hs7751rvoip_irq_type = {
+        "HS7751RVoIP IRQ",
+        startup_hs7751rvoip_irq,
+        shutdown_hs7751rvoip_irq,
+        enable_hs7751rvoip_irq,
+        disable_hs7751rvoip_irq,
+        ack_hs7751rvoip_irq,
+        end_hs7751rvoip_irq,
+};
+
+static void make_hs7751rvoip_irq(unsigned int irq)
+{
+        disable_irq_nosync(irq);
+        irq_desc[irq].handler = &hs7751rvoip_irq_type;
+        disable_hs7751rvoip_irq(irq);
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_hs7751rvoip_IRQ(void)
+{
+        int i;
+
+        /* IRL0=ON HOOK1
+         * IRL1=OFF HOOK1
+         * IRL2=ON HOOK2
+         * IRL3=OFF HOOK2
+         * IRL4=Ringing Detection
+         * IRL5=CODEC
+         * IRL6=Ethernet
+         * IRL7=Ethernet Hub
+         * IRL8=USB Communication
+         * IRL9=USB Connection
+         * IRL10=USB DMA
+         * IRL11=CF Card
+         * IRL12=PCMCIA
+         * IRL13=PCI Slot
+         */
+        ctrl_outw(0x9876, IRLCNTR1);
+        ctrl_outw(0xdcba, IRLCNTR2);
+        ctrl_outw(0x0050, IRLCNTR4);
+        ctrl_outw(0x4321, IRLCNTR5);
+
+        for (i=0; i<14; i++)
+                make_hs7751rvoip_irq(i);
+}