[PATCH] macintosh/adbhid.c: adb buttons support for aluminium PowerBook G4

This patch adds support for the special adb buttons of the aluminium
PowerBook G4.

Signed-off-by: Andreas Jaggi <andreas.jaggi@waterwave.ch>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 45 insertions, 0 deletions

diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c
index 8f93d01d8928..db654e8bd67e 100644
--- a/drivers/macintosh/adbhid.c
+++ b/drivers/macintosh/adbhid.c
@@ -555,6 +555,42 @@ adbhid_buttons_input(unsigned char *data, int nb, struct pt_regs *regs, int auto
 #endif /* CONFIG_PMAC_BACKLIGHT */
                         input_report_key(&adbhid[id]->input, KEY_BRIGHTNESSUP, down);
                         break;
+
+                case 0xc:       /* videomode switch */
+                        input_report_key(&adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
+                        break;
+
+                case 0xd:       /* keyboard illumination toggle */
+                        input_report_key(&adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
+                        break;
+
+                case 0xe:       /* keyboard illumination decrease */
+                        input_report_key(&adbhid[id]->input, KEY_KBDILLUMDOWN, down);
+                        break;
+
+                case 0xf:
+                        switch (data[1]) {
+                        case 0x8f:
+                        case 0x0f:
+                                /* keyboard illumination increase */
+                                input_report_key(&adbhid[id]->input, KEY_KBDILLUMUP, down);
+                                break;
+
+                        case 0x7f:
+                        case 0xff:
+                                /* keypad overlay toogle */
+                                break;
+
+                        default:
+                                printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
+                                       data[0], data[1], data[2], data[3]);
+                                break;
+                        }
+                        break;
+                default:
+                        printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
+                               data[0], data[1], data[2], data[3]);
+                        break;
                 }
           }
           break;
@@ -775,6 +811,10 @@ adbhid_input_register(int id, int default_id, int original_handler_id,
                         set_bit(KEY_BRIGHTNESSUP, adbhid[id]->input.keybit);
                         set_bit(KEY_BRIGHTNESSDOWN, adbhid[id]->input.keybit);
                         set_bit(KEY_EJECTCD, adbhid[id]->input.keybit);
+                        set_bit(KEY_SWITCHVIDEOMODE, adbhid[id]->input.keybit);
+                        set_bit(KEY_KBDILLUMTOGGLE, adbhid[id]->input.keybit);
+                        set_bit(KEY_KBDILLUMDOWN, adbhid[id]->input.keybit);
+                        set_bit(KEY_KBDILLUMUP, adbhid[id]->input.keybit);
                         break;
                 }
                 if (adbhid[id]->name[0])
diff --git a/include/linux/input.h b/include/linux/input.h
index b70df8fe60e6..72731d7d189e 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -328,6 +328,11 @@ struct input_absinfo {
 #define KEY_BRIGHTNESSUP        225
 #define KEY_MEDIA               226
 
+#define KEY_SWITCHVIDEOMODE     227
+#define KEY_KBDILLUMTOGGLE      228
+#define KEY_KBDILLUMDOWN        229
+#define KEY_KBDILLUMUP          230
+
 #define KEY_UNKNOWN             240
 
 #define BTN_MISC                0x100