summaryrefslogtreecommitdiffstats
path: root/drivers/macintosh/mac_hid.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/macintosh/mac_hid.c')
-rw-r--r--drivers/macintosh/mac_hid.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
new file mode 100644
index 0000000..cc9f275
--- /dev/null
+++ b/drivers/macintosh/mac_hid.c
@@ -0,0 +1,153 @@
+/*
+ * 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/init.h>
+#include <linux/proc_fs.h>
+#include <linux/sysctl.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/kbd_kern.h>
+
+
+static struct input_dev *emumousebtn;
+static int emumousebtn_input_register(void);
+static int mouse_emulate_buttons;
+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;
+
+#if defined(CONFIG_SYSCTL)
+/* file(s) in /proc/sys/dev/mac_hid */
+static 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 */
+static 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 */
+static 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;
+}
+
+static struct lock_class_key emumousebtn_event_class;
+static struct lock_class_key emumousebtn_mutex_class;
+
+static int emumousebtn_input_register(void)
+{
+ int ret;
+
+ emumousebtn = input_allocate_device();
+ if (!emumousebtn)
+ return -ENOMEM;
+
+ lockdep_set_class(&emumousebtn->event_lock, &emumousebtn_event_class);
+ lockdep_set_class(&emumousebtn->mutex, &emumousebtn_mutex_class);
+
+ emumousebtn->name = "Macintosh mouse button emulation";
+ emumousebtn->id.bustype = BUS_ADB;
+ emumousebtn->id.vendor = 0x0001;
+ emumousebtn->id.product = 0x0001;
+ emumousebtn->id.version = 0x0100;
+
+ emumousebtn->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ emumousebtn->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ emumousebtn->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ ret = input_register_device(emumousebtn);
+ if (ret)
+ input_free_device(emumousebtn);
+
+ return ret;
+}
+
+static int __init mac_hid_init(void)
+{
+ int err;
+
+ err = emumousebtn_input_register();
+ if (err)
+ return err;
+
+#if defined(CONFIG_SYSCTL)
+ mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir);
+#endif /* CONFIG_SYSCTL */
+
+ return 0;
+}
+
+device_initcall(mac_hid_init);
OpenPOWER on IntegriCloud