* [PATCH 2/5] Input: wacom - handle split-sensor devices with internal hubs
2012-09-06 22:53 [PATCH 1/5] Input: wacom - Allow any multi-input Intuos device to set prox Jason Gerecke
@ 2012-09-06 22:53 ` Jason Gerecke
2012-09-06 22:53 ` [PATCH 3/5] Input: wacom - Introduce wacom_fix_phy_from_hid Jason Gerecke
` (3 subsequent siblings)
4 siblings, 0 replies; 9+ messages in thread
From: Jason Gerecke @ 2012-09-06 22:53 UTC (permalink / raw)
To: linux-input, dmitry.torokhov, pinglinux, chris; +Cc: Jason Gerecke
Like our other pen-and-touch products, the Cintiq 24HD touch
needs data to be shared between its two sensors to facilitate
proximity-based palm rejection.
Unlike other tablets that report sensor data through separate
interfaces of the same USB device, the Cintiq 24HD touch has
separate USB devices that are connected to an internal USB hub.
This patch makes it possible to designate the USB VID/PID of
the other device so that the two may share data. To ensure
we don't accidentally link to a sensor from a physically separate
device (if several have been plugged in), we limit the search
to siblings (i.e., devices directly connected to the same
hub).
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
---
drivers/input/tablet/wacom_sys.c | 31 ++++++++++++++++++++++++++++++-
drivers/input/tablet/wacom_wac.c | 3 ++-
drivers/input/tablet/wacom_wac.h | 2 ++
3 files changed, 34 insertions(+), 2 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 0d3219f..d67a996 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -546,6 +546,29 @@ struct wacom_usbdev_data {
static LIST_HEAD(wacom_udev_list);
static DEFINE_MUTEX(wacom_udev_list_lock);
+static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product)
+{
+ struct usb_device **sibling;
+
+ if (vendor == 0 && product == 0)
+ return dev;
+
+ if (dev->parent == NULL)
+ return NULL;
+
+ sibling = dev->parent->children;
+ while (sibling != NULL && *sibling != NULL) {
+ struct usb_device_descriptor d = (*sibling)->descriptor;
+
+ if (d.idVendor == vendor && d.idProduct == product)
+ return *sibling;
+
+ sibling++;
+ }
+
+ return NULL;
+}
+
static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev)
{
struct wacom_usbdev_data *data;
@@ -1190,13 +1213,19 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
+ struct usb_device *other_dev;
+
/* Append the device type to the name */
strlcat(wacom_wac->name,
features->device_type == BTN_TOOL_PEN ?
" Pen" : " Finger",
sizeof(wacom_wac->name));
- error = wacom_add_shared_data(wacom_wac, dev);
+
+ other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
+ if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
+ other_dev = dev;
+ error = wacom_add_shared_data(wacom_wac, other_dev);
if (error)
goto fail3;
}
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index a8bc6c9..9f52ba0 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1327,7 +1327,8 @@ void wacom_setup_device_quirks(struct wacom_features *features)
/* these device have multiple inputs */
if (features->type >= WIRELESS ||
- (features->type >= INTUOS5S && features->type <= INTUOS5L))
+ (features->type >= INTUOS5S && features->type <= INTUOS5L) ||
+ (features->oVid && features->oPid))
features->quirks |= WACOM_QUIRK_MULTI_INPUT;
/* quirk for bamboo touch with 2 low res touches */
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 96c185c..3f926ec 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -109,6 +109,8 @@ struct wacom_features {
int distance_fuzz;
unsigned quirks;
unsigned touch_max;
+ int oVid;
+ int oPid;
};
struct wacom_shared {
--
1.7.12
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH 4/5] Input: wacom - Clean up wacom_query_tablet_data
2012-09-06 22:53 [PATCH 1/5] Input: wacom - Allow any multi-input Intuos device to set prox Jason Gerecke
2012-09-06 22:53 ` [PATCH 2/5] Input: wacom - handle split-sensor devices with internal hubs Jason Gerecke
2012-09-06 22:53 ` [PATCH 3/5] Input: wacom - Introduce wacom_fix_phy_from_hid Jason Gerecke
@ 2012-09-06 22:53 ` Jason Gerecke
2012-09-06 22:53 ` [PATCH 5/5] Input: wacom - Add touch sensor support for Cintiq 24HD touch Jason Gerecke
2012-09-28 21:18 ` [PATCH 1/5] Input: wacom - Allow any multi-input Intuos device to set prox Ping Cheng
4 siblings, 0 replies; 9+ messages in thread
From: Jason Gerecke @ 2012-09-06 22:53 UTC (permalink / raw)
To: linux-input, dmitry.torokhov, pinglinux, chris; +Cc: Jason Gerecke
Rewrites this function to be easier to read and understand. The new
function 'wacom_set_device_mode' now handles the grunt work of
assembling the proper feature report, sending it to the device,
and ensuring the setting "sticks".
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
---
drivers/input/tablet/wacom_sys.c | 74 +++++++++++++++++++---------------------
1 file changed, 35 insertions(+), 39 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 08ab0b0..b34a92b 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -500,56 +500,52 @@ static int wacom_parse_hid(struct usb_interface *intf,
return result;
}
-static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features)
+static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode)
{
unsigned char *rep_data;
- int limit = 0, report_id = 2;
- int error = -ENOMEM;
+ int error = -ENOMEM, limit = 0;
- rep_data = kmalloc(4, GFP_KERNEL);
+ rep_data = kzalloc(length, GFP_KERNEL);
if (!rep_data)
return error;
- /* ask to report Wacom data */
+ rep_data[0] = report_id;
+ rep_data[1] = mode;
+
+ do {
+ error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
+ report_id, rep_data, length, 1);
+ if (error >= 0)
+ error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT,
+ report_id, rep_data, length, 1);
+ } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES);
+
+ kfree(rep_data);
+
+ return error < 0 ? error : 0;
+}
+
+/*
+ * Switch the tablet into its most-capable mode. Wacom tablets are
+ * typically configured to power-up in a mode which sends mouse-like
+ * reports to the OS. To get absolute position, pressure data, etc.
+ * from the tablet, it is necessary to switch the tablet out of this
+ * mode and into one which sends the full range of tablet data.
+ */
+static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features)
+{
if (features->device_type == BTN_TOOL_FINGER) {
- /* if it is an MT Tablet PC touch */
if (features->type > TABLETPC) {
- do {
- rep_data[0] = 3;
- rep_data[1] = 4;
- rep_data[2] = 0;
- rep_data[3] = 0;
- report_id = 3;
- error = wacom_set_report(intf,
- WAC_HID_FEATURE_REPORT,
- report_id,
- rep_data, 4, 1);
- if (error >= 0)
- error = wacom_get_report(intf,
- WAC_HID_FEATURE_REPORT,
- report_id,
- rep_data, 4, 1);
- } while ((error < 0 || rep_data[1] != 4) &&
- limit++ < WAC_MSG_RETRIES);
+ /* MT Tablet PC touch */
+ return wacom_set_device_mode(intf, 3, 4, 4);
+ }
+ } else if (features->device_type == BTN_TOOL_PEN) {
+ if (features->type <= BAMBOO_PT && features->type != WIRELESS) {
+ return wacom_set_device_mode(intf, 2, 2, 2);
}
- } else if (features->type <= BAMBOO_PT &&
- features->type != WIRELESS &&
- features->device_type == BTN_TOOL_PEN) {
- do {
- rep_data[0] = 2;
- rep_data[1] = 2;
- error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
- report_id, rep_data, 2, 1);
- if (error >= 0)
- error = wacom_get_report(intf,
- WAC_HID_FEATURE_REPORT,
- report_id, rep_data, 2, 1);
- } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES);
}
- kfree(rep_data);
-
- return error < 0 ? error : 0;
+ return 0;
}
static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
--
1.7.12
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH 5/5] Input: wacom - Add touch sensor support for Cintiq 24HD touch
2012-09-06 22:53 [PATCH 1/5] Input: wacom - Allow any multi-input Intuos device to set prox Jason Gerecke
` (2 preceding siblings ...)
2012-09-06 22:53 ` [PATCH 4/5] Input: wacom - Clean up wacom_query_tablet_data Jason Gerecke
@ 2012-09-06 22:53 ` Jason Gerecke
2012-09-28 21:18 ` [PATCH 1/5] Input: wacom - Allow any multi-input Intuos device to set prox Ping Cheng
4 siblings, 0 replies; 9+ messages in thread
From: Jason Gerecke @ 2012-09-06 22:53 UTC (permalink / raw)
To: linux-input, dmitry.torokhov, pinglinux, chris; +Cc: Jason Gerecke
Decode multitouch reports from the touch sensor of the Cintiq
24HD touch.
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
---
drivers/input/tablet/wacom_sys.c | 19 ++++++++-
drivers/input/tablet/wacom_wac.c | 84 +++++++++++++++++++++++++++++++++++++++-
drivers/input/tablet/wacom_wac.h | 3 ++
3 files changed, 103 insertions(+), 3 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index b34a92b..e99f33f 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -389,7 +389,7 @@ static int wacom_parse_hid(struct usb_interface *intf,
features->pktlen = WACOM_PKGLEN_TPC2FG;
}
- if (features->type == MTSCREEN)
+ if (features->type == MTSCREEN || WACOM_24HDT)
features->pktlen = WACOM_PKGLEN_MTOUCH;
if (features->type == BAMBOO_PT) {
@@ -400,6 +400,14 @@ static int wacom_parse_hid(struct usb_interface *intf,
features->x_max =
get_unaligned_le16(&report[i + 8]);
i += 15;
+ } else if (features->type == WACOM_24HDT) {
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->x_phy =
+ get_unaligned_le16(&report[i + 8]);
+ features->unit = report[i - 1];
+ features->unitExpo = report[i - 3];
+ i += 12;
} else {
features->x_max =
get_unaligned_le16(&report[i + 3]);
@@ -432,6 +440,12 @@ static int wacom_parse_hid(struct usb_interface *intf,
features->y_phy =
get_unaligned_le16(&report[i + 6]);
i += 7;
+ } else if (type == WACOM_24HDT) {
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_phy =
+ get_unaligned_le16(&report[i - 2]);
+ i += 7;
} else if (type == BAMBOO_PT) {
features->y_phy =
get_unaligned_le16(&report[i + 3]);
@@ -539,6 +553,9 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
/* MT Tablet PC touch */
return wacom_set_device_mode(intf, 3, 4, 4);
}
+ else if (features->type == WACOM_24HDT) {
+ return wacom_set_device_mode(intf, 18, 3, 2);
+ }
} else if (features->device_type == BTN_TOOL_PEN) {
if (features->type <= BAMBOO_PT && features->type != WIRELESS) {
return wacom_set_device_mode(intf, 2, 2, 2);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 9f52ba0..da9adee 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -801,6 +801,69 @@ static int find_slot_from_contactid(struct wacom_wac *wacom, int contactid)
return -1;
}
+static int int_dist(int x1, int y1, int x2, int y2)
+{
+ int x = x2 - x1;
+ int y = y2 - y1;
+ return int_sqrt(x*x + y*y);
+}
+
+static int wacom_24hdt_irq(struct wacom_wac *wacom)
+{
+ struct input_dev *input = wacom->input;
+ char *data = wacom->data;
+ int i;
+ int current_num_contacts = data[61];
+ int contacts_to_send = 0;
+
+ /*
+ * First packet resets the counter since only the first
+ * packet in series will have non-zero current_num_contacts.
+ */
+ if (current_num_contacts)
+ wacom->num_contacts_left = current_num_contacts;
+
+ /* There are at most 4 contacts per packet */
+ contacts_to_send = min(4, wacom->num_contacts_left);
+
+ for (i = 0; i < contacts_to_send; i++) {
+ int offset = (WACOM_BYTES_PER_24HDT_PACKET * i) + 1;
+ bool touch = data[offset] & 0x1 && !wacom->shared->stylus_in_proximity;
+ int id = data[offset + 1];
+ int slot = find_slot_from_contactid(wacom, id);
+
+ if (slot < 0)
+ continue;
+ input_mt_slot(input, slot);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+
+ if (touch) {
+ int t_x = le16_to_cpup((__le16 *)&data[offset + 2]);
+ int c_x = le16_to_cpup((__le16 *)&data[offset + 4]);
+ int t_y = le16_to_cpup((__le16 *)&data[offset + 6]);
+ int c_y = le16_to_cpup((__le16 *)&data[offset + 8]);
+ int w = le16_to_cpup((__le16 *)&data[offset + 10]);
+ int h = le16_to_cpup((__le16 *)&data[offset + 12]);
+
+ input_report_abs(input, ABS_MT_POSITION_X, t_x);
+ input_report_abs(input, ABS_MT_POSITION_Y, t_y);
+ input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h));
+ input_report_abs(input, ABS_MT_WIDTH_MAJOR, min(w, h) + int_dist(t_x, t_y, c_x, c_y));
+ input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
+ input_report_abs(input, ABS_MT_ORIENTATION, w > h);
+ }
+ wacom->slots[slot] = touch ? id : -1;
+ }
+
+ input_mt_report_pointer_emulation(input, true);
+
+ wacom->num_contacts_left -= contacts_to_send;
+ if (wacom->num_contacts_left <= 0)
+ wacom->num_contacts_left = 0;
+
+ return 1;
+}
+
static int wacom_mt_touch(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->input;
@@ -1242,6 +1305,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
sync = wacom_intuos_irq(wacom_wac);
break;
+ case WACOM_24HDT:
+ sync = wacom_24hdt_irq(wacom_wac);
+ break;
+
case INTUOS5S:
case INTUOS5:
case INTUOS5L:
@@ -1561,6 +1628,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
break;
+ case WACOM_24HDT:
+ if (features->device_type == BTN_TOOL_FINGER) {
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 0, features->x_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 0, features->y_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+ }
+ /* fall through */
+
case MTSCREEN:
if (features->device_type == BTN_TOOL_FINGER) {
wacom_wac->slots = kmalloc(features->touch_max *
@@ -1852,8 +1928,11 @@ static const struct wacom_features wacom_features_0xF4 =
{ "Wacom Cintiq 24HD", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047,
63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
static const struct wacom_features wacom_features_0xF8 =
- { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047,
- 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+ { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, /* Pen */
+ 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 };
+static const struct wacom_features wacom_features_0xF6 =
+ { "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */
+ .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10 };
static const struct wacom_features wacom_features_0x3F =
{ "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023,
63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
@@ -2096,6 +2175,7 @@ const struct usb_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0x47) },
{ USB_DEVICE_WACOM(0xF4) },
{ USB_DEVICE_WACOM(0xF8) },
+ { USB_DEVICE_WACOM(0xF6) },
{ USB_DEVICE_WACOM(0xFA) },
{ USB_DEVICE_LENOVO(0x6004) },
{ }
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 3f926ec..345f1e7 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -29,6 +29,7 @@
/* wacom data size per MT contact */
#define WACOM_BYTES_PER_MT_PACKET 11
+#define WACOM_BYTES_PER_24HDT_PACKET 14
/* device IDs */
#define STYLUS_DEVICE_ID 0x02
@@ -49,6 +50,7 @@
#define WACOM_REPORT_TPCHID 15
#define WACOM_REPORT_TPCST 16
#define WACOM_REPORT_TPC1FGE 18
+#define WACOM_REPORT_24HDT 1
/* device quirks */
#define WACOM_QUIRK_MULTI_INPUT 0x0001
@@ -81,6 +83,7 @@ enum {
WACOM_MO,
WIRELESS,
BAMBOO_PT,
+ WACOM_24HDT,
TABLETPC, /* add new TPC below */
TABLETPCE,
TABLETPC2FG,
--
1.7.12
^ permalink raw reply related [flat|nested] 9+ messages in thread