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19#include <linux/device.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22#include <linux/usb.h>
23
24#include "hid-ids.h"
25
26#define APPLE_RDESC_JIS 0x0001
27#define APPLE_IGNORE_MOUSE 0x0002
28#define APPLE_HAS_FN 0x0004
29#define APPLE_HIDDEV 0x0008
30#define APPLE_ISO_KEYBOARD 0x0010
31#define APPLE_MIGHTYMOUSE 0x0020
32#define APPLE_INVERT_HWHEEL 0x0040
33#define APPLE_IGNORE_HIDINPUT 0x0080
34#define APPLE_NUMLOCK_EMULATION 0x0100
35
36#define APPLE_FLAG_FKEY 0x01
37
38static unsigned int fnmode = 1;
39module_param(fnmode, uint, 0644);
40MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
41 "[1] = fkeyslast, 2 = fkeysfirst)");
42
43struct apple_sc {
44 unsigned long quirks;
45 unsigned int fn_on;
46 DECLARE_BITMAP(pressed_fn, KEY_CNT);
47 DECLARE_BITMAP(pressed_numlock, KEY_CNT);
48};
49
50struct apple_key_translation {
51 u16 from;
52 u16 to;
53 u8 flags;
54};
55
56static const struct apple_key_translation apple_fn_keys[] = {
57 { KEY_BACKSPACE, KEY_DELETE },
58 { KEY_ENTER, KEY_INSERT },
59 { KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
60 { KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
61 { KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
62 { KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
63 { KEY_F5, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
64 { KEY_F6, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
65 { KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
66 { KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
67 { KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
68 { KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
69 { KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
70 { KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
71 { KEY_UP, KEY_PAGEUP },
72 { KEY_DOWN, KEY_PAGEDOWN },
73 { KEY_LEFT, KEY_HOME },
74 { KEY_RIGHT, KEY_END },
75 { }
76};
77
78static const struct apple_key_translation powerbook_fn_keys[] = {
79 { KEY_BACKSPACE, KEY_DELETE },
80 { KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
81 { KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
82 { KEY_F3, KEY_MUTE, APPLE_FLAG_FKEY },
83 { KEY_F4, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
84 { KEY_F5, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
85 { KEY_F6, KEY_NUMLOCK, APPLE_FLAG_FKEY },
86 { KEY_F7, KEY_SWITCHVIDEOMODE, APPLE_FLAG_FKEY },
87 { KEY_F8, KEY_KBDILLUMTOGGLE, APPLE_FLAG_FKEY },
88 { KEY_F9, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
89 { KEY_F10, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
90 { KEY_UP, KEY_PAGEUP },
91 { KEY_DOWN, KEY_PAGEDOWN },
92 { KEY_LEFT, KEY_HOME },
93 { KEY_RIGHT, KEY_END },
94 { }
95};
96
97static const struct apple_key_translation powerbook_numlock_keys[] = {
98 { KEY_J, KEY_KP1 },
99 { KEY_K, KEY_KP2 },
100 { KEY_L, KEY_KP3 },
101 { KEY_U, KEY_KP4 },
102 { KEY_I, KEY_KP5 },
103 { KEY_O, KEY_KP6 },
104 { KEY_7, KEY_KP7 },
105 { KEY_8, KEY_KP8 },
106 { KEY_9, KEY_KP9 },
107 { KEY_M, KEY_KP0 },
108 { KEY_DOT, KEY_KPDOT },
109 { KEY_SLASH, KEY_KPPLUS },
110 { KEY_SEMICOLON, KEY_KPMINUS },
111 { KEY_P, KEY_KPASTERISK },
112 { KEY_MINUS, KEY_KPEQUAL },
113 { KEY_0, KEY_KPSLASH },
114 { KEY_F6, KEY_NUMLOCK },
115 { KEY_KPENTER, KEY_KPENTER },
116 { KEY_BACKSPACE, KEY_BACKSPACE },
117 { }
118};
119
120static const struct apple_key_translation apple_iso_keyboard[] = {
121 { KEY_GRAVE, KEY_102ND },
122 { KEY_102ND, KEY_GRAVE },
123 { }
124};
125
126static const struct apple_key_translation *apple_find_translation(
127 const struct apple_key_translation *table, u16 from)
128{
129 const struct apple_key_translation *trans;
130
131
132 for (trans = table; trans->from; trans++)
133 if (trans->from == from)
134 return trans;
135
136 return NULL;
137}
138
139static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
140 struct hid_usage *usage, __s32 value)
141{
142 struct apple_sc *asc = hid_get_drvdata(hid);
143 const struct apple_key_translation *trans;
144
145 if (usage->code == KEY_FN) {
146 asc->fn_on = !!value;
147 input_event(input, usage->type, usage->code, value);
148 return 1;
149 }
150
151 if (fnmode) {
152 int do_translate;
153
154 trans = apple_find_translation((hid->product < 0x21d ||
155 hid->product >= 0x300) ?
156 powerbook_fn_keys : apple_fn_keys,
157 usage->code);
158 if (trans) {
159 if (test_bit(usage->code, asc->pressed_fn))
160 do_translate = 1;
161 else if (trans->flags & APPLE_FLAG_FKEY)
162 do_translate = (fnmode == 2 && asc->fn_on) ||
163 (fnmode == 1 && !asc->fn_on);
164 else
165 do_translate = asc->fn_on;
166
167 if (do_translate) {
168 if (value)
169 set_bit(usage->code, asc->pressed_fn);
170 else
171 clear_bit(usage->code, asc->pressed_fn);
172
173 input_event(input, usage->type, trans->to,
174 value);
175
176 return 1;
177 }
178 }
179
180 if (asc->quirks & APPLE_NUMLOCK_EMULATION &&
181 (test_bit(usage->code, asc->pressed_numlock) ||
182 test_bit(LED_NUML, input->led))) {
183 trans = apple_find_translation(powerbook_numlock_keys,
184 usage->code);
185
186 if (trans) {
187 if (value)
188 set_bit(usage->code,
189 asc->pressed_numlock);
190 else
191 clear_bit(usage->code,
192 asc->pressed_numlock);
193
194 input_event(input, usage->type, trans->to,
195 value);
196 }
197
198 return 1;
199 }
200 }
201
202 if (asc->quirks & APPLE_ISO_KEYBOARD) {
203 trans = apple_find_translation(apple_iso_keyboard, usage->code);
204 if (trans) {
205 input_event(input, usage->type, trans->to, value);
206 return 1;
207 }
208 }
209
210 return 0;
211}
212
213static int apple_event(struct hid_device *hdev, struct hid_field *field,
214 struct hid_usage *usage, __s32 value)
215{
216 struct apple_sc *asc = hid_get_drvdata(hdev);
217
218 if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
219 !usage->type)
220 return 0;
221
222 if ((asc->quirks & APPLE_INVERT_HWHEEL) &&
223 usage->code == REL_HWHEEL) {
224 input_event(field->hidinput->input, usage->type, usage->code,
225 -value);
226 return 1;
227 }
228
229 if ((asc->quirks & APPLE_HAS_FN) &&
230 hidinput_apple_event(hdev, field->hidinput->input,
231 usage, value))
232 return 1;
233
234
235 return 0;
236}
237
238
239
240
241static void apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
242 unsigned int rsize)
243{
244 struct apple_sc *asc = hid_get_drvdata(hdev);
245
246 if ((asc->quirks & APPLE_RDESC_JIS) && rsize >= 60 &&
247 rdesc[53] == 0x65 && rdesc[59] == 0x65) {
248 dev_info(&hdev->dev, "fixing up MacBook JIS keyboard report "
249 "descriptor\n");
250 rdesc[53] = rdesc[59] = 0xe7;
251 }
252}
253
254static void apple_setup_input(struct input_dev *input)
255{
256 const struct apple_key_translation *trans;
257
258 set_bit(KEY_NUMLOCK, input->keybit);
259
260
261 for (trans = apple_fn_keys; trans->from; trans++)
262 set_bit(trans->to, input->keybit);
263
264 for (trans = powerbook_fn_keys; trans->from; trans++)
265 set_bit(trans->to, input->keybit);
266
267 for (trans = powerbook_numlock_keys; trans->from; trans++)
268 set_bit(trans->to, input->keybit);
269
270 for (trans = apple_iso_keyboard; trans->from; trans++)
271 set_bit(trans->to, input->keybit);
272}
273
274static int apple_input_mapping(struct hid_device *hdev, struct hid_input *hi,
275 struct hid_field *field, struct hid_usage *usage,
276 unsigned long **bit, int *max)
277{
278 if (usage->hid == (HID_UP_CUSTOM | 0x0003)) {
279
280 set_bit(EV_REP, hi->input->evbit);
281 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);
282 apple_setup_input(hi->input);
283 return 1;
284 }
285
286
287 return 0;
288}
289
290static int apple_input_mapped(struct hid_device *hdev, struct hid_input *hi,
291 struct hid_field *field, struct hid_usage *usage,
292 unsigned long **bit, int *max)
293{
294 struct apple_sc *asc = hid_get_drvdata(hdev);
295
296 if (asc->quirks & APPLE_MIGHTYMOUSE) {
297 if (usage->hid == HID_GD_Z)
298 hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
299 else if (usage->code == BTN_1)
300 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_2);
301 else if (usage->code == BTN_2)
302 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_1);
303 }
304
305 return 0;
306}
307
308static int apple_probe(struct hid_device *hdev,
309 const struct hid_device_id *id)
310{
311 unsigned long quirks = id->driver_data;
312 struct apple_sc *asc;
313 unsigned int connect_mask = HID_CONNECT_DEFAULT;
314 int ret;
315
316 asc = kzalloc(sizeof(*asc), GFP_KERNEL);
317 if (asc == NULL) {
318 dev_err(&hdev->dev, "can't alloc apple descriptor\n");
319 return -ENOMEM;
320 }
321
322 asc->quirks = quirks;
323
324 hid_set_drvdata(hdev, asc);
325
326 ret = hid_parse(hdev);
327 if (ret) {
328 dev_err(&hdev->dev, "parse failed\n");
329 goto err_free;
330 }
331
332 if (quirks & APPLE_HIDDEV)
333 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
334 if (quirks & APPLE_IGNORE_HIDINPUT)
335 connect_mask &= ~HID_CONNECT_HIDINPUT;
336
337 ret = hid_hw_start(hdev, connect_mask);
338 if (ret) {
339 dev_err(&hdev->dev, "hw start failed\n");
340 goto err_free;
341 }
342
343 return 0;
344err_free:
345 kfree(asc);
346 return ret;
347}
348
349static void apple_remove(struct hid_device *hdev)
350{
351 hid_hw_stop(hdev);
352 kfree(hid_get_drvdata(hdev));
353}
354
355static const struct hid_device_id apple_devices[] = {
356 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL),
357 .driver_data = APPLE_HIDDEV | APPLE_IGNORE_HIDINPUT },
358 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4),
359 .driver_data = APPLE_HIDDEV | APPLE_IGNORE_HIDINPUT },
360 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE),
361 .driver_data = APPLE_MIGHTYMOUSE | APPLE_INVERT_HWHEEL },
362
363 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI),
364 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
365 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO),
366 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
367 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI),
368 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
369 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO),
370 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
371 APPLE_ISO_KEYBOARD },
372 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS),
373 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
374 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI),
375 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
376 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO),
377 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
378 APPLE_ISO_KEYBOARD },
379 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS),
380 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
381 APPLE_RDESC_JIS },
382 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI),
383 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
384 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO),
385 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
386 APPLE_ISO_KEYBOARD },
387 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS),
388 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
389 APPLE_RDESC_JIS },
390 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI),
391 .driver_data = APPLE_HAS_FN },
392 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO),
393 .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
394 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS),
395 .driver_data = APPLE_HAS_FN },
396 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI),
397 .driver_data = APPLE_HAS_FN },
398 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO),
399 .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
400 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS),
401 .driver_data = APPLE_HAS_FN },
402 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI),
403 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
404 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO),
405 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
406 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS),
407 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
408 APPLE_RDESC_JIS },
409 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
410 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
411 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO),
412 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
413 APPLE_ISO_KEYBOARD },
414 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS),
415 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
416 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
417 .driver_data = APPLE_HAS_FN },
418 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
419 .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
420 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS),
421 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
422 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
423 .driver_data = APPLE_HAS_FN },
424 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
425 .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
426 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
427 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
428 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
429 .driver_data = APPLE_HAS_FN },
430 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
431 .driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
432 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
433 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
434 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY),
435 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
436 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
437 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
438
439 { }
440};
441MODULE_DEVICE_TABLE(hid, apple_devices);
442
443static struct hid_driver apple_driver = {
444 .name = "apple",
445 .id_table = apple_devices,
446 .report_fixup = apple_report_fixup,
447 .probe = apple_probe,
448 .remove = apple_remove,
449 .event = apple_event,
450 .input_mapping = apple_input_mapping,
451 .input_mapped = apple_input_mapped,
452};
453
454static int __init apple_init(void)
455{
456 int ret;
457
458 ret = hid_register_driver(&apple_driver);
459 if (ret)
460 printk(KERN_ERR "can't register apple driver\n");
461
462 return ret;
463}
464
465static void __exit apple_exit(void)
466{
467 hid_unregister_driver(&apple_driver);
468}
469
470module_init(apple_init);
471module_exit(apple_exit);
472MODULE_LICENSE("GPL");
473
