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HID: wacom: generic: add mode change touch key 

Wacom Cintiq Pro added a touch key to switch the tablet between
display and opaque mode. This patch informs the change by removing
the old devices and creating new ones with proper properties.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
Tested-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires 2017-02-14 21:27:18 -08:00 committed by Jiri Kosina
parent 4eb220cb35
commit 4082da80f4
4 changed files with 74 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/hid/wacom.h
View File

@ -110,6 +110,7 @@ enum wacom_worker {
WACOM_WORKER_WIRELESS,
WACOM_WORKER_BATTERY,
WACOM_WORKER_REMOTE,
WACOM_WORKER_MODE_CHANGE,
};
struct wacom;
@ -167,6 +168,7 @@ struct wacom {
struct work_struct remote_work;
struct delayed_work init_work;
struct wacom_remote *remote;
struct work_struct mode_change_work;
bool generic_has_leds;
struct wacom_leds {
struct wacom_group_leds *groups;
@ -196,6 +198,9 @@ static inline void wacom_schedule_work(struct wacom_wac *wacom_wac,
case WACOM_WORKER_REMOTE:
schedule_work(&wacom->remote_work);
break;
case WACOM_WORKER_MODE_CHANGE:
schedule_work(&wacom->mode_change_work);
break;
}
}

49
drivers/hid/wacom_sys.c
View File

@ -325,6 +325,13 @@ static void wacom_post_parse_hid(struct hid_device *hdev,
if (features->type == HID_GENERIC) {
/* Any last-minute generic device setup */
if (wacom_wac->has_mode_change) {
if (wacom_wac->is_direct_mode)
features->device_type |= WACOM_DEVICETYPE_DIRECT;
else
features->device_type &= ~WACOM_DEVICETYPE_DIRECT;
}
if (features->touch_max > 1) {
if (features->device_type & WACOM_DEVICETYPE_DIRECT)
input_mt_init_slots(wacom_wac->touch_input,
@ -2488,6 +2495,46 @@ static void wacom_remote_work(struct work_struct *work)
}
}
static void wacom_mode_change_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, mode_change_work);
struct wacom_shared *shared = wacom->wacom_wac.shared;
struct wacom *wacom1 = NULL;
struct wacom *wacom2 = NULL;
bool is_direct = wacom->wacom_wac.is_direct_mode;
int error = 0;
if (shared->pen) {
wacom1 = hid_get_drvdata(shared->pen);
wacom_release_resources(wacom1);
hid_hw_stop(wacom1->hdev);
wacom1->wacom_wac.has_mode_change = true;
wacom1->wacom_wac.is_direct_mode = is_direct;
}
if (shared->touch) {
wacom2 = hid_get_drvdata(shared->touch);
wacom_release_resources(wacom2);
hid_hw_stop(wacom2->hdev);
wacom2->wacom_wac.has_mode_change = true;
wacom2->wacom_wac.is_direct_mode = is_direct;
}
if (wacom1) {
error = wacom_parse_and_register(wacom1, false);
if (error)
return;
}
if (wacom2) {
error = wacom_parse_and_register(wacom2, false);
if (error)
return;
}
return;
}
static int wacom_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
@ -2532,6 +2579,7 @@ static int wacom_probe(struct hid_device *hdev,
INIT_WORK(&wacom->wireless_work, wacom_wireless_work);
INIT_WORK(&wacom->battery_work, wacom_battery_work);
INIT_WORK(&wacom->remote_work, wacom_remote_work);
INIT_WORK(&wacom->mode_change_work, wacom_mode_change_work);
/* ask for the report descriptor to be loaded by HID */
error = hid_parse(hdev);
@ -2574,6 +2622,7 @@ static void wacom_remove(struct hid_device *hdev)
cancel_work_sync(&wacom->wireless_work);
cancel_work_sync(&wacom->battery_work);
cancel_work_sync(&wacom->remote_work);
cancel_work_sync(&wacom->mode_change_work);
if (hdev->bus == BUS_BLUETOOTH)
device_remove_file(&hdev->dev, &dev_attr_speed);

17
drivers/hid/wacom_wac.c
View File

@ -1780,6 +1780,14 @@ static void wacom_wac_pad_usage_mapping(struct hid_device *hdev,
wacom_map_usage(input, usage, field, EV_KEY, KEY_CONTROLPANEL, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_MODE_CHANGE:
/* do not overwrite previous data */
if (!wacom_wac->has_mode_change) {
wacom_wac->has_mode_change = true;
wacom_wac->is_direct_mode = true;
}
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
}
switch (equivalent_usage & 0xfffffff0) {
@ -1828,7 +1836,7 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
* Avoid reporting this event and setting inrange_state if this usage
* hasn't been mapped.
*/
if (!usage->type)
if (!usage->type && equivalent_usage != WACOM_HID_WD_MODE_CHANGE)
return;
if (wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) {
@ -1850,6 +1858,13 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
}
break;
case WACOM_HID_WD_MODE_CHANGE:
if (wacom_wac->is_direct_mode != value) {
wacom_wac->is_direct_mode = value;
wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_MODE_CHANGE);
}
break;
case WACOM_HID_WD_BUTTONCENTER:
for (i = 0; i < wacom->led.count; i++)
wacom_update_led(wacom, features->numbered_buttons,

4
drivers/hid/wacom_wac.h
View File

@ -120,6 +120,7 @@
#define WACOM_HID_WD_BATTERY_LEVEL (WACOM_HID_UP_WACOMDIGITIZER | 0x043b)
#define WACOM_HID_WD_EXPRESSKEY00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
#define WACOM_HID_WD_EXPRESSKEYCAP00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0950)
#define WACOM_HID_WD_MODE_CHANGE (WACOM_HID_UP_WACOMDIGITIZER | 0x0980)
#define WACOM_HID_WD_CONTROLPANEL (WACOM_HID_UP_WACOMDIGITIZER | 0x0982)
#define WACOM_HID_WD_ONSCREEN_KEYBOARD (WACOM_HID_UP_WACOMDIGITIZER | 0x0983)
#define WACOM_HID_WD_BUTTONCONFIG (WACOM_HID_UP_WACOMDIGITIZER | 0x0986)
@ -330,6 +331,9 @@ struct wacom_wac {
int mode_value;
struct hid_data hid_data;
bool has_mute_touch_switch;
bool has_mode_change;
bool is_direct_mode;
};
#endif