forked from Minki/linux
Input: wacom - add touch sensor support for Cintiq 24HD touch
Decode multitouch reports from the touch sensor of the Cintiq 24HD touch. Signed-off-by: Jason Gerecke <killertofu@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jason Gerecke
Linus Torvalds
parent
aea2bf6a57
commit
b1e4279e4e
@ -391,7 +391,7 @@ static int wacom_parse_hid(struct usb_interface *intf,
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features->pktlen = WACOM_PKGLEN_TPC2FG;
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}
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if (features->type == MTSCREEN)
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if (features->type == MTSCREEN || WACOM_24HDT)
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features->pktlen = WACOM_PKGLEN_MTOUCH;
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if (features->type == BAMBOO_PT) {
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@ -402,6 +402,14 @@ static int wacom_parse_hid(struct usb_interface *intf,
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features->x_max =
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get_unaligned_le16(&report[i + 8]);
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i += 15;
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} else if (features->type == WACOM_24HDT) {
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features->x_max =
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get_unaligned_le16(&report[i + 3]);
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features->x_phy =
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get_unaligned_le16(&report[i + 8]);
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features->unit = report[i - 1];
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features->unitExpo = report[i - 3];
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i += 12;
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} else {
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features->x_max =
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get_unaligned_le16(&report[i + 3]);
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@ -434,6 +442,12 @@ static int wacom_parse_hid(struct usb_interface *intf,
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features->y_phy =
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get_unaligned_le16(&report[i + 6]);
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i += 7;
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} else if (type == WACOM_24HDT) {
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features->y_max =
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get_unaligned_le16(&report[i + 3]);
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features->y_phy =
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get_unaligned_le16(&report[i - 2]);
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i += 7;
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} else if (type == BAMBOO_PT) {
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features->y_phy =
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get_unaligned_le16(&report[i + 3]);
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@ -541,6 +555,9 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
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/* MT Tablet PC touch */
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return wacom_set_device_mode(intf, 3, 4, 4);
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}
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else if (features->type == WACOM_24HDT) {
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return wacom_set_device_mode(intf, 18, 3, 2);
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}
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} else if (features->device_type == BTN_TOOL_PEN) {
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if (features->type <= BAMBOO_PT && features->type != WIRELESS) {
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return wacom_set_device_mode(intf, 2, 2, 2);
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@ -806,6 +806,70 @@ static int find_slot_from_contactid(struct wacom_wac *wacom, int contactid)
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return -1;
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}
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static int int_dist(int x1, int y1, int x2, int y2)
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{
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int x = x2 - x1;
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int y = y2 - y1;
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return int_sqrt(x*x + y*y);
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}
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static int wacom_24hdt_irq(struct wacom_wac *wacom)
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{
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struct input_dev *input = wacom->input;
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char *data = wacom->data;
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int i;
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int current_num_contacts = data[61];
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int contacts_to_send = 0;
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/*
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* First packet resets the counter since only the first
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* packet in series will have non-zero current_num_contacts.
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*/
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if (current_num_contacts)
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wacom->num_contacts_left = current_num_contacts;
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/* There are at most 4 contacts per packet */
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contacts_to_send = min(4, wacom->num_contacts_left);
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for (i = 0; i < contacts_to_send; i++) {
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int offset = (WACOM_BYTES_PER_24HDT_PACKET * i) + 1;
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bool touch = data[offset] & 0x1 && !wacom->shared->stylus_in_proximity;
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int id = data[offset + 1];
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int slot = find_slot_from_contactid(wacom, id);
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if (slot < 0)
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continue;
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input_mt_slot(input, slot);
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input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
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if (touch) {
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int t_x = le16_to_cpup((__le16 *)&data[offset + 2]);
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int c_x = le16_to_cpup((__le16 *)&data[offset + 4]);
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int t_y = le16_to_cpup((__le16 *)&data[offset + 6]);
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int c_y = le16_to_cpup((__le16 *)&data[offset + 8]);
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int w = le16_to_cpup((__le16 *)&data[offset + 10]);
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int h = le16_to_cpup((__le16 *)&data[offset + 12]);
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input_report_abs(input, ABS_MT_POSITION_X, t_x);
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input_report_abs(input, ABS_MT_POSITION_Y, t_y);
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input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h));
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input_report_abs(input, ABS_MT_WIDTH_MAJOR, min(w, h) + int_dist(t_x, t_y, c_x, c_y));
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input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
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input_report_abs(input, ABS_MT_ORIENTATION, w > h);
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}
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wacom->slots[slot] = touch ? id : -1;
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}
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input_mt_report_pointer_emulation(input, true);
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wacom->num_contacts_left -= contacts_to_send;
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if (wacom->num_contacts_left <= 0)
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wacom->num_contacts_left = 0;
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return 1;
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}
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static int wacom_mt_touch(struct wacom_wac *wacom)
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{
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struct input_dev *input = wacom->input;
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@ -1255,6 +1319,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
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sync = wacom_intuos_irq(wacom_wac);
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break;
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case WACOM_24HDT:
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sync = wacom_24hdt_irq(wacom_wac);
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break;
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case INTUOS5S:
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case INTUOS5:
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case INTUOS5L:
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@ -1576,6 +1644,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
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__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
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break;
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case WACOM_24HDT:
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if (features->device_type == BTN_TOOL_FINGER) {
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input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0);
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input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 0, features->x_max, 0, 0);
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input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 0, features->y_max, 0, 0);
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input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
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}
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/* fall through */
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case MTSCREEN:
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if (features->device_type == BTN_TOOL_FINGER) {
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wacom_wac->slots = kmalloc(features->touch_max *
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@ -1870,8 +1947,11 @@ static const struct wacom_features wacom_features_0xF4 =
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{ "Wacom Cintiq 24HD", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047,
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63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
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static const struct wacom_features wacom_features_0xF8 =
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{ "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047,
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63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
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{ "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, /* Pen */
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63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 };
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static const struct wacom_features wacom_features_0xF6 =
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{ "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */
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.oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10 };
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static const struct wacom_features wacom_features_0x3F =
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{ "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023,
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63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
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@ -2114,6 +2194,7 @@ const struct usb_device_id wacom_ids[] = {
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{ USB_DEVICE_WACOM(0x47) },
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{ USB_DEVICE_WACOM(0xF4) },
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{ USB_DEVICE_WACOM(0xF8) },
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{ USB_DEVICE_WACOM(0xF6) },
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{ USB_DEVICE_WACOM(0xFA) },
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{ USB_DEVICE_LENOVO(0x6004) },
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{ }
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@ -29,6 +29,7 @@
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/* wacom data size per MT contact */
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#define WACOM_BYTES_PER_MT_PACKET 11
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#define WACOM_BYTES_PER_24HDT_PACKET 14
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/* device IDs */
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#define STYLUS_DEVICE_ID 0x02
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@ -49,6 +50,7 @@
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#define WACOM_REPORT_TPCHID 15
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#define WACOM_REPORT_TPCST 16
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#define WACOM_REPORT_TPC1FGE 18
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#define WACOM_REPORT_24HDT 1
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/* device quirks */
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#define WACOM_QUIRK_MULTI_INPUT 0x0001
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@ -81,6 +83,7 @@ enum {
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WACOM_MO,
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WIRELESS,
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BAMBOO_PT,
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WACOM_24HDT,
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TABLETPC, /* add new TPC below */
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TABLETPCE,
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TABLETPC2FG,
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