1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
new file mode 100644
index 000000000000..5ad3a5a9eb7f
--- /dev/null
+++ b/drivers/macintosh/mac_hid.c
@@ -0,0 +1,140 @@
+/*
+ * drivers/macintosh/mac_hid.c
+ *
+ * HID support stuff for Macintosh computers.
+ *
+ * Copyright (C) 2000 Franz Sirl.
+ *
+ * This file will soon be removed in favor of an uinput userspace tool.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/sysctl.h>
+#include <linux/input.h>
+#include <linux/module.h>
+
+
+static struct input_dev emumousebtn;
+static void emumousebtn_input_register(void);
+static int mouse_emulate_buttons = 0;
+static int mouse_button2_keycode = KEY_RIGHTCTRL;	/* right control key */
+static int mouse_button3_keycode = KEY_RIGHTALT;	/* right option key */
+static int mouse_last_keycode = 0;
+
+#if defined(CONFIG_SYSCTL)
+/* file(s) in /proc/sys/dev/mac_hid */
+ctl_table mac_hid_files[] = {
+	{
+		.ctl_name	= DEV_MAC_HID_MOUSE_BUTTON_EMULATION,
+		.procname	= "mouse_button_emulation",
+		.data		= &mouse_emulate_buttons,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE,
+		.procname	= "mouse_button2_keycode",
+		.data		= &mouse_button2_keycode,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE,
+		.procname	= "mouse_button3_keycode",
+		.data		= &mouse_button3_keycode,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+	},
+	{ .ctl_name = 0 }
+};
+
+/* dir in /proc/sys/dev */
+ctl_table mac_hid_dir[] = {
+	{
+		.ctl_name	= DEV_MAC_HID,
+		.procname	= "mac_hid",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= mac_hid_files,
+	},
+	{ .ctl_name = 0 }
+};
+
+/* /proc/sys/dev itself, in case that is not there yet */
+ctl_table mac_hid_root_dir[] = {
+	{
+		.ctl_name	= CTL_DEV,
+		.procname	= "dev",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= mac_hid_dir,
+	},
+	{ .ctl_name = 0 }
+};
+
+static struct ctl_table_header *mac_hid_sysctl_header;
+
+#endif /* endif CONFIG_SYSCTL */
+
+int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down)
+{
+	switch (caller) {
+	case 1:
+		/* Called from keyboard.c */
+		if (mouse_emulate_buttons
+		    && (keycode == mouse_button2_keycode
+			|| keycode == mouse_button3_keycode)) {
+			if (mouse_emulate_buttons == 1) {
+			 	input_report_key(&emumousebtn,
+						 keycode == mouse_button2_keycode ? BTN_MIDDLE : BTN_RIGHT,
+						 down);
+				input_sync(&emumousebtn);
+				return 1;
+			}
+			mouse_last_keycode = down ? keycode : 0;
+		}
+		break;
+	}
+	return 0;
+}
+
+EXPORT_SYMBOL(mac_hid_mouse_emulate_buttons);
+
+static void emumousebtn_input_register(void)
+{
+	emumousebtn.name = "Macintosh mouse button emulation";
+
+	init_input_dev(&emumousebtn);
+
+	emumousebtn.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
+	emumousebtn.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
+	emumousebtn.relbit[0] = BIT(REL_X) | BIT(REL_Y);
+
+	emumousebtn.id.bustype = BUS_ADB;
+	emumousebtn.id.vendor = 0x0001;
+	emumousebtn.id.product = 0x0001;
+	emumousebtn.id.version = 0x0100;
+
+	input_register_device(&emumousebtn);
+
+	printk(KERN_INFO "input: Macintosh mouse button emulation\n");
+}
+
+int __init mac_hid_init(void)
+{
+
+	emumousebtn_input_register();
+
+#if defined(CONFIG_SYSCTL)
+	mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir, 1);
+#endif /* CONFIG_SYSCTL */
+
+	return 0;
+}
+
+device_initcall(mac_hid_init);