1 /* 2 * drivers/macintosh/mac_hid.c 3 * 4 * HID support stuff for Macintosh computers. 5 * 6 * Copyright (C) 2000 Franz Sirl. 7 * 8 * This file will soon be removed in favor of an uinput userspace tool. 9 */ 10 11 #include <linux/config.h> 12 #include <linux/init.h> 13 #include <linux/proc_fs.h> 14 #include <linux/sysctl.h> 15 #include <linux/input.h> 16 #include <linux/module.h> 17 18 19 static struct input_dev emumousebtn; 20 static void emumousebtn_input_register(void); 21 static int mouse_emulate_buttons = 0; 22 static int mouse_button2_keycode = KEY_RIGHTCTRL; /* right control key */ 23 static int mouse_button3_keycode = KEY_RIGHTALT; /* right option key */ 24 static int mouse_last_keycode = 0; 25 26 #if defined(CONFIG_SYSCTL) 27 /* file(s) in /proc/sys/dev/mac_hid */ 28 ctl_table mac_hid_files[] = { 29 { 30 .ctl_name = DEV_MAC_HID_MOUSE_BUTTON_EMULATION, 31 .procname = "mouse_button_emulation", 32 .data = &mouse_emulate_buttons, 33 .maxlen = sizeof(int), 34 .mode = 0644, 35 .proc_handler = &proc_dointvec, 36 }, 37 { 38 .ctl_name = DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE, 39 .procname = "mouse_button2_keycode", 40 .data = &mouse_button2_keycode, 41 .maxlen = sizeof(int), 42 .mode = 0644, 43 .proc_handler = &proc_dointvec, 44 }, 45 { 46 .ctl_name = DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE, 47 .procname = "mouse_button3_keycode", 48 .data = &mouse_button3_keycode, 49 .maxlen = sizeof(int), 50 .mode = 0644, 51 .proc_handler = &proc_dointvec, 52 }, 53 { .ctl_name = 0 } 54 }; 55 56 /* dir in /proc/sys/dev */ 57 ctl_table mac_hid_dir[] = { 58 { 59 .ctl_name = DEV_MAC_HID, 60 .procname = "mac_hid", 61 .maxlen = 0, 62 .mode = 0555, 63 .child = mac_hid_files, 64 }, 65 { .ctl_name = 0 } 66 }; 67 68 /* /proc/sys/dev itself, in case that is not there yet */ 69 ctl_table mac_hid_root_dir[] = { 70 { 71 .ctl_name = CTL_DEV, 72 .procname = "dev", 73 .maxlen = 0, 74 .mode = 0555, 75 .child = mac_hid_dir, 76 }, 77 { .ctl_name = 0 } 78 }; 79 80 static struct ctl_table_header *mac_hid_sysctl_header; 81 82 #endif /* endif CONFIG_SYSCTL */ 83 84 int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down) 85 { 86 switch (caller) { 87 case 1: 88 /* Called from keyboard.c */ 89 if (mouse_emulate_buttons 90 && (keycode == mouse_button2_keycode 91 || keycode == mouse_button3_keycode)) { 92 if (mouse_emulate_buttons == 1) { 93 input_report_key(&emumousebtn, 94 keycode == mouse_button2_keycode ? BTN_MIDDLE : BTN_RIGHT, 95 down); 96 input_sync(&emumousebtn); 97 return 1; 98 } 99 mouse_last_keycode = down ? keycode : 0; 100 } 101 break; 102 } 103 return 0; 104 } 105 106 EXPORT_SYMBOL(mac_hid_mouse_emulate_buttons); 107 108 static void emumousebtn_input_register(void) 109 { 110 emumousebtn.name = "Macintosh mouse button emulation"; 111 112 init_input_dev(&emumousebtn); 113 114 emumousebtn.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); 115 emumousebtn.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); 116 emumousebtn.relbit[0] = BIT(REL_X) | BIT(REL_Y); 117 118 emumousebtn.id.bustype = BUS_ADB; 119 emumousebtn.id.vendor = 0x0001; 120 emumousebtn.id.product = 0x0001; 121 emumousebtn.id.version = 0x0100; 122 123 input_register_device(&emumousebtn); 124 125 printk(KERN_INFO "input: Macintosh mouse button emulation\n"); 126 } 127 128 int __init mac_hid_init(void) 129 { 130 131 emumousebtn_input_register(); 132 133 #if defined(CONFIG_SYSCTL) 134 mac_hid_sysctl_header = register_sysctl_table(mac_hid_root_dir, 1); 135 #endif /* CONFIG_SYSCTL */ 136 137 return 0; 138 } 139 140 device_initcall(mac_hid_init); 141