diff options
Diffstat (limited to 'drivers/macintosh/mac_hid.c')
-rw-r--r-- | drivers/macintosh/mac_hid.c | 153 |
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); |