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/drivers/input/mouse/rpcmouse.c b/drivers/input/mouse/rpcmouse.c
new file mode 100644
index 0000000..7280f68
--- /dev/null
+++ b/drivers/input/mouse/rpcmouse.c
@@ -0,0 +1,107 @@
+/*
+ * Acorn RiscPC mouse driver for Linux/ARM
+ *
+ * Copyright (c) 2000-2002 Vojtech Pavlik
+ * Copyright (C) 1996-2002 Russell King
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This handles the Acorn RiscPCs mouse. We basically have a couple of
+ * hardware registers that track the sensor count for the X-Y movement and
+ * another register holding the button state. On every VSYNC interrupt we read
+ * the complete state and then work out if something has changed.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/input.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/hardware/iomd.h>
+
+MODULE_AUTHOR("Vojtech Pavlik, Russell King");
+MODULE_DESCRIPTION("Acorn RiscPC mouse driver");
+MODULE_LICENSE("GPL");
+
+static short rpcmouse_lastx, rpcmouse_lasty;
+
+static struct input_dev rpcmouse_dev = {
+ .evbit = { BIT(EV_KEY) | BIT(EV_REL) },
+ .keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT) },
+ .relbit = { BIT(REL_X) | BIT(REL_Y) },
+ .name = "Acorn RiscPC Mouse",
+ .phys = "rpcmouse/input0",
+ .id = {
+ .bustype = BUS_HOST,
+ .vendor = 0x0005,
+ .product = 0x0001,
+ .version = 0x0100,
+ },
+};
+
+static irqreturn_t rpcmouse_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct input_dev *dev = dev_id;
+ short x, y, dx, dy, b;
+
+ x = (short) iomd_readl(IOMD_MOUSEX);
+ y = (short) iomd_readl(IOMD_MOUSEY);
+ b = (short) (__raw_readl(0xe0310000) ^ 0x70);
+
+ dx = x - rpcmouse_lastx;
+ dy = y - rpcmouse_lasty;
+
+ rpcmouse_lastx = x;
+ rpcmouse_lasty = y;
+
+ input_regs(dev, regs);
+
+ input_report_rel(dev, REL_X, dx);
+ input_report_rel(dev, REL_Y, -dy);
+
+ input_report_key(dev, BTN_LEFT, b & 0x40);
+ input_report_key(dev, BTN_MIDDLE, b & 0x20);
+ input_report_key(dev, BTN_RIGHT, b & 0x10);
+
+ input_sync(dev);
+
+ return IRQ_HANDLED;
+}
+
+static int __init rpcmouse_init(void)
+{
+ init_input_dev(&rpcmouse_dev);
+
+ rpcmouse_lastx = (short) iomd_readl(IOMD_MOUSEX);
+ rpcmouse_lasty = (short) iomd_readl(IOMD_MOUSEY);
+
+ if (request_irq(IRQ_VSYNCPULSE, rpcmouse_irq, SA_SHIRQ, "rpcmouse", &rpcmouse_dev)) {
+ printk(KERN_ERR "rpcmouse: unable to allocate VSYNC interrupt\n");
+ return -1;
+ }
+
+ input_register_device(&rpcmouse_dev);
+
+ printk(KERN_INFO "input: Acorn RiscPC mouse\n");
+
+ return 0;
+}
+
+static void __exit rpcmouse_exit(void)
+{
+ input_unregister_device(&rpcmouse_dev);
+ free_irq(IRQ_VSYNCPULSE, &rpcmouse_dev);
+}
+
+module_init(rpcmouse_init);
+module_exit(rpcmouse_exit);