From 3faed1aff786a007b3ea0549ac469e09f48c98f9 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 29 Jan 2014 17:57:43 +0100 Subject: HID: hid-microsoft: Add support for scrollwheel and special keypad keys The Microsoft Office keyboard has a scrollwheel as well as some special keys above the keypad which are handled through the custom MS usage page, this commit adds support for these. Signed-off-by: Hans de Goede Signed-off-by: Jiri Kosina --- drivers/hid/hid-microsoft.c | 49 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) (limited to 'drivers/hid/hid-microsoft.c') diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index 5268dec5d81a..fe415e8ed7c4 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -68,6 +68,26 @@ static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage, switch (usage->hid & HID_USAGE) { case 0xfd06: ms_map_key_clear(KEY_CHAT); break; case 0xfd07: ms_map_key_clear(KEY_PHONE); break; + case 0xff00: + /* Special keypad keys */ + ms_map_key_clear(KEY_KPEQUAL); + set_bit(KEY_KPLEFTPAREN, input->keybit); + set_bit(KEY_KPRIGHTPAREN, input->keybit); + break; + case 0xff01: + /* Scroll wheel */ + hid_map_usage_clear(hi, usage, bit, max, EV_REL, REL_WHEEL); + break; + case 0xff02: + /* + * This byte contains a copy of the modifier keys byte of a + * standard hid keyboard report, as send by interface 0 + * (this usage is found on interface 1). + * + * This byte only gets send when another key in the same report + * changes state, and as such is useless, ignore it. + */ + return -1; case 0xff05: set_bit(EV_REP, input->evbit); ms_map_key_clear(KEY_F13); @@ -137,14 +157,39 @@ static int ms_event(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage, __s32 value) { unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); + struct input_dev *input; if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput || !usage->type) return 0; + input = field->hidinput->input; + /* Handling MS keyboards special buttons */ + if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff00)) { + /* Special keypad keys */ + input_report_key(input, KEY_KPEQUAL, value & 0x01); + input_report_key(input, KEY_KPLEFTPAREN, value & 0x02); + input_report_key(input, KEY_KPRIGHTPAREN, value & 0x04); + return 1; + } + + if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff01)) { + /* Scroll wheel */ + int step = ((value & 0x60) >> 5) + 1; + + switch (value & 0x1f) { + case 0x01: + input_report_rel(input, REL_WHEEL, step); + break; + case 0x1f: + input_report_rel(input, REL_WHEEL, -step); + break; + } + return 1; + } + if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) { - struct input_dev *input = field->hidinput->input; static unsigned int last_key = 0; unsigned int key = 0; switch (value) { @@ -197,6 +242,8 @@ err_free: static const struct hid_device_id ms_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV), .driver_data = MS_HIDINPUT }, + { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB), + .driver_data = MS_ERGONOMY }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K), .driver_data = MS_ERGONOMY }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP), -- cgit v1.2.3