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path: root/drivers/input/tablet/wacom_sys.c
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Diffstat (limited to 'drivers/input/tablet/wacom_sys.c')
-rw-r--r--drivers/input/tablet/wacom_sys.c467
1 files changed, 257 insertions, 210 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index aaf23aeae2e..2c613cd41dd 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -22,23 +22,18 @@
#define HID_USAGE_PAGE_DIGITIZER 0x0d
#define HID_USAGE_PAGE_DESKTOP 0x01
#define HID_USAGE 0x09
-#define HID_USAGE_X 0x30
-#define HID_USAGE_Y 0x31
-#define HID_USAGE_X_TILT 0x3d
-#define HID_USAGE_Y_TILT 0x3e
-#define HID_USAGE_FINGER 0x22
-#define HID_USAGE_STYLUS 0x20
-#define HID_USAGE_CONTACTMAX 0x55
+#define HID_USAGE_X ((HID_USAGE_PAGE_DESKTOP << 16) | 0x30)
+#define HID_USAGE_Y ((HID_USAGE_PAGE_DESKTOP << 16) | 0x31)
+#define HID_USAGE_PRESSURE ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x30)
+#define HID_USAGE_X_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3d)
+#define HID_USAGE_Y_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3e)
+#define HID_USAGE_FINGER ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x22)
+#define HID_USAGE_STYLUS ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x20)
+#define HID_USAGE_CONTACTMAX ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x55)
#define HID_COLLECTION 0xa1
#define HID_COLLECTION_LOGICAL 0x02
#define HID_COLLECTION_END 0xc0
-enum {
- WCM_UNDEFINED = 0,
- WCM_DESKTOP,
- WCM_DIGITIZER,
-};
-
struct hid_descriptor {
struct usb_descriptor_header header;
__le16 bcdHID;
@@ -221,39 +216,6 @@ static int wacom_calc_hid_res(int logical_extents, int physical_extents,
return logical_extents / physical_extents;
}
-/*
- * The physical dimension specified by the HID descriptor is likely not in
- * the "100th of a mm" units expected by wacom_calculate_touch_res. This
- * function adjusts the value of [xy]_phy based on the unit and exponent
- * provided by the HID descriptor. If an error occurs durring conversion
- * (e.g. from the unit being left unspecified) [xy]_phy is not modified.
- */
-static void wacom_fix_phy_from_hid(struct wacom_features *features)
-{
- int xres = wacom_calc_hid_res(features->x_max, features->x_phy,
- features->unit, features->unitExpo);
- int yres = wacom_calc_hid_res(features->y_max, features->y_phy,
- features->unit, features->unitExpo);
-
- if (xres > 0 && yres > 0) {
- features->x_phy = (100 * features->x_max) / xres;
- features->y_phy = (100 * features->y_max) / yres;
- }
-}
-
-/*
- * Static values for max X/Y and resolution of Pen interface is stored in
- * features. This mean physical size of active area can be computed.
- * This is useful to do when Pen and Touch have same active area of tablet.
- * This means for Touch device, we only need to find max X/Y value and we
- * have enough information to compute resolution of touch.
- */
-static void wacom_set_phy_from_res(struct wacom_features *features)
-{
- features->x_phy = (features->x_max * 100) / features->x_resolution;
- features->y_phy = (features->y_max * 100) / features->y_resolution;
-}
-
static int wacom_parse_logical_collection(unsigned char *report,
struct wacom_features *features)
{
@@ -265,8 +227,6 @@ static int wacom_parse_logical_collection(unsigned char *report,
features->pktlen = WACOM_PKGLEN_BBTOUCH3;
features->device_type = BTN_TOOL_FINGER;
- wacom_set_phy_from_res(features);
-
features->x_max = features->y_max =
get_unaligned_le16(&report[10]);
@@ -339,8 +299,8 @@ static int wacom_parse_hid(struct usb_interface *intf,
struct usb_device *dev = interface_to_usbdev(intf);
char limit = 0;
/* result has to be defined as int for some devices */
- int result = 0;
- int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0;
+ int result = 0, touch_max = 0;
+ int i = 0, page = 0, finger = 0, pen = 0;
unsigned char *report;
report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL);
@@ -367,133 +327,140 @@ static int wacom_parse_hid(struct usb_interface *intf,
switch (report[i]) {
case HID_USAGE_PAGE:
- switch (report[i + 1]) {
- case HID_USAGE_PAGE_DIGITIZER:
- usage = WCM_DIGITIZER;
- i++;
- break;
-
- case HID_USAGE_PAGE_DESKTOP:
- usage = WCM_DESKTOP;
- i++;
- break;
- }
+ page = report[i + 1];
+ i++;
break;
case HID_USAGE:
- switch (report[i + 1]) {
+ switch (page << 16 | report[i + 1]) {
case HID_USAGE_X:
- if (usage == WCM_DESKTOP) {
- if (finger) {
- features->device_type = BTN_TOOL_FINGER;
-
- switch (features->type) {
- case TABLETPC2FG:
- features->pktlen = WACOM_PKGLEN_TPC2FG;
- break;
-
- case MTSCREEN:
- case WACOM_24HDT:
- features->pktlen = WACOM_PKGLEN_MTOUCH;
- break;
-
- case MTTPC:
- features->pktlen = WACOM_PKGLEN_MTTPC;
- break;
-
- case BAMBOO_PT:
- features->pktlen = WACOM_PKGLEN_BBTOUCH;
- break;
-
- default:
- features->pktlen = WACOM_PKGLEN_GRAPHIRE;
- break;
- }
-
- switch (features->type) {
- case BAMBOO_PT:
- features->x_phy =
- get_unaligned_le16(&report[i + 5]);
- features->x_max =
- get_unaligned_le16(&report[i + 8]);
- i += 15;
- break;
-
- case 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;
- break;
-
- default:
- features->x_max =
- get_unaligned_le16(&report[i + 3]);
- features->x_phy =
- get_unaligned_le16(&report[i + 6]);
- features->unit = report[i + 9];
- features->unitExpo = report[i + 11];
- i += 12;
- break;
- }
- } else if (pen) {
- /* penabled only accepts exact bytes of data */
- if (features->type >= TABLETPC)
- features->pktlen = WACOM_PKGLEN_GRAPHIRE;
- features->device_type = BTN_TOOL_PEN;
+ if (finger) {
+ features->device_type = BTN_TOOL_FINGER;
+ /* touch device at least supports one touch point */
+ touch_max = 1;
+ switch (features->type) {
+ case TABLETPC2FG:
+ features->pktlen = WACOM_PKGLEN_TPC2FG;
+ break;
+
+ case MTSCREEN:
+ case WACOM_24HDT:
+ features->pktlen = WACOM_PKGLEN_MTOUCH;
+ break;
+
+ case MTTPC:
+ case MTTPC_B:
+ features->pktlen = WACOM_PKGLEN_MTTPC;
+ break;
+
+ case BAMBOO_PT:
+ features->pktlen = WACOM_PKGLEN_BBTOUCH;
+ break;
+
+ default:
+ features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+ break;
+ }
+
+ switch (features->type) {
+ case BAMBOO_PT:
+ features->x_phy =
+ get_unaligned_le16(&report[i + 5]);
+ features->x_max =
+ get_unaligned_le16(&report[i + 8]);
+ i += 15;
+ break;
+
+ case WACOM_24HDT:
features->x_max =
get_unaligned_le16(&report[i + 3]);
- i += 4;
+ features->x_phy =
+ get_unaligned_le16(&report[i + 8]);
+ features->unit = report[i - 1];
+ features->unitExpo = report[i - 3];
+ i += 12;
+ break;
+
+ case MTTPC_B:
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->x_phy =
+ get_unaligned_le16(&report[i + 6]);
+ features->unit = report[i - 5];
+ features->unitExpo = report[i - 3];
+ i += 9;
+ break;
+
+ default:
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->x_phy =
+ get_unaligned_le16(&report[i + 6]);
+ features->unit = report[i + 9];
+ features->unitExpo = report[i + 11];
+ i += 12;
+ break;
}
+ } else if (pen) {
+ /* penabled only accepts exact bytes of data */
+ if (features->type >= TABLETPC)
+ features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+ features->device_type = BTN_TOOL_PEN;
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ i += 4;
}
break;
case HID_USAGE_Y:
- if (usage == WCM_DESKTOP) {
- if (finger) {
- switch (features->type) {
- case TABLETPC2FG:
- case MTSCREEN:
- case MTTPC:
- features->y_max =
- get_unaligned_le16(&report[i + 3]);
- features->y_phy =
- get_unaligned_le16(&report[i + 6]);
- i += 7;
- break;
-
- case WACOM_24HDT:
- features->y_max =
- get_unaligned_le16(&report[i + 3]);
- features->y_phy =
- get_unaligned_le16(&report[i - 2]);
- i += 7;
- break;
-
- case BAMBOO_PT:
- features->y_phy =
- get_unaligned_le16(&report[i + 3]);
- features->y_max =
- get_unaligned_le16(&report[i + 6]);
- i += 12;
- break;
-
- default:
- features->y_max =
- features->x_max;
- features->y_phy =
- get_unaligned_le16(&report[i + 3]);
- i += 4;
- break;
- }
- } else if (pen) {
+ if (finger) {
+ switch (features->type) {
+ case TABLETPC2FG:
+ case MTSCREEN:
+ case MTTPC:
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_phy =
+ get_unaligned_le16(&report[i + 6]);
+ i += 7;
+ break;
+
+ case WACOM_24HDT:
features->y_max =
get_unaligned_le16(&report[i + 3]);
+ features->y_phy =
+ get_unaligned_le16(&report[i - 2]);
+ i += 7;
+ break;
+
+ case BAMBOO_PT:
+ features->y_phy =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_max =
+ get_unaligned_le16(&report[i + 6]);
+ i += 12;
+ break;
+
+ case MTTPC_B:
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_phy =
+ get_unaligned_le16(&report[i + 6]);
+ i += 9;
+ break;
+
+ default:
+ features->y_max =
+ features->x_max;
+ features->y_phy =
+ get_unaligned_le16(&report[i + 3]);
i += 4;
+ break;
}
+ } else if (pen) {
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ i += 4;
}
break;
@@ -518,12 +485,20 @@ static int wacom_parse_hid(struct usb_interface *intf,
wacom_retrieve_report_data(intf, features);
i++;
break;
+
+ case HID_USAGE_PRESSURE:
+ if (pen) {
+ features->pressure_max =
+ get_unaligned_le16(&report[i + 3]);
+ i += 4;
+ }
+ break;
}
break;
case HID_COLLECTION_END:
/* reset UsagePage and Finger */
- finger = usage = 0;
+ finger = page = 0;
break;
case HID_COLLECTION:
@@ -539,6 +514,8 @@ static int wacom_parse_hid(struct usb_interface *intf,
}
out:
+ if (!features->touch_max && touch_max)
+ features->touch_max = touch_max;
result = 0;
kfree(report);
return result;
@@ -559,9 +536,6 @@ static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int
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);
@@ -583,7 +557,7 @@ 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) {
+ else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) {
return wacom_set_device_mode(intf, 18, 3, 2);
}
} else if (features->device_type == BTN_TOOL_PEN) {
@@ -640,9 +614,6 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
}
}
error = wacom_parse_hid(intf, hid_desc, features);
- if (error)
- goto out;
- wacom_fix_phy_from_hid(features);
out:
return error;
@@ -757,7 +728,7 @@ static int wacom_led_control(struct wacom *wacom)
return -ENOMEM;
if (wacom->wacom_wac.features.type >= INTUOS5S &&
- wacom->wacom_wac.features.type <= INTUOS5L) {
+ wacom->wacom_wac.features.type <= INTUOSPL) {
/*
* Touch Ring and crop mark LED luminance may take on
* one of four values:
@@ -1019,14 +990,20 @@ static int wacom_initialize_leds(struct wacom *wacom)
case INTUOS5S:
case INTUOS5:
case INTUOS5L:
- wacom->led.select[0] = 0;
- wacom->led.select[1] = 0;
- wacom->led.llv = 32;
- wacom->led.hlv = 0;
- wacom->led.img_lum = 0;
-
- error = sysfs_create_group(&wacom->intf->dev.kobj,
- &intuos5_led_attr_group);
+ case INTUOSPS:
+ case INTUOSPM:
+ case INTUOSPL:
+ if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) {
+ wacom->led.select[0] = 0;
+ wacom->led.select[1] = 0;
+ wacom->led.llv = 32;
+ wacom->led.hlv = 0;
+ wacom->led.img_lum = 0;
+
+ error = sysfs_create_group(&wacom->intf->dev.kobj,
+ &intuos5_led_attr_group);
+ } else
+ return 0;
break;
default:
@@ -1062,13 +1039,18 @@ static void wacom_destroy_leds(struct wacom *wacom)
case INTUOS5S:
case INTUOS5:
case INTUOS5L:
- sysfs_remove_group(&wacom->intf->dev.kobj,
- &intuos5_led_attr_group);
+ case INTUOSPS:
+ case INTUOSPM:
+ case INTUOSPL:
+ if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN)
+ sysfs_remove_group(&wacom->intf->dev.kobj,
+ &intuos5_led_attr_group);
break;
}
}
static enum power_supply_property wacom_battery_props[] = {
+ POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_CAPACITY
};
@@ -1080,6 +1062,9 @@ static int wacom_battery_get_property(struct power_supply *psy,
int ret = 0;
switch (psp) {
+ case POWER_SUPPLY_PROP_SCOPE:
+ val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+ break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval =
wacom->wacom_wac.battery_capacity * 100 / 31;
@@ -1219,38 +1204,84 @@ static void wacom_wireless_work(struct work_struct *work)
wacom_wac1->features =
*((struct wacom_features *)id->driver_info);
wacom_wac1->features.device_type = BTN_TOOL_PEN;
+ snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen",
+ wacom_wac1->features.name);
+ wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max;
+ wacom_wac1->shared->type = wacom_wac1->features.type;
error = wacom_register_input(wacom1);
if (error)
- goto fail1;
+ goto fail;
/* Touch interface */
- wacom_wac2->features =
- *((struct wacom_features *)id->driver_info);
- wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
- wacom_wac2->features.device_type = BTN_TOOL_FINGER;
- wacom_set_phy_from_res(&wacom_wac2->features);
- wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
- error = wacom_register_input(wacom2);
- if (error)
- goto fail2;
+ if (wacom_wac1->features.touch_max ||
+ wacom_wac1->features.type == INTUOSHT) {
+ wacom_wac2->features =
+ *((struct wacom_features *)id->driver_info);
+ wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
+ wacom_wac2->features.device_type = BTN_TOOL_FINGER;
+ wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
+ if (wacom_wac2->features.touch_max)
+ snprintf(wacom_wac2->name, WACOM_NAME_MAX,
+ "%s (WL) Finger",wacom_wac2->features.name);
+ else
+ snprintf(wacom_wac2->name, WACOM_NAME_MAX,
+ "%s (WL) Pad",wacom_wac2->features.name);
+ error = wacom_register_input(wacom2);
+ if (error)
+ goto fail;
+
+ if (wacom_wac1->features.type == INTUOSHT &&
+ wacom_wac1->features.touch_max)
+ wacom_wac->shared->touch_input = wacom_wac2->input;
+ }
error = wacom_initialize_battery(wacom);
if (error)
- goto fail3;
+ goto fail;
}
return;
-fail3:
- input_unregister_device(wacom_wac2->input);
- wacom_wac2->input = NULL;
-fail2:
- input_unregister_device(wacom_wac1->input);
- wacom_wac1->input = NULL;
-fail1:
+fail:
+ if (wacom_wac2->input) {
+ input_unregister_device(wacom_wac2->input);
+ wacom_wac2->input = NULL;
+ }
+
+ if (wacom_wac1->input) {
+ input_unregister_device(wacom_wac1->input);
+ wacom_wac1->input = NULL;
+ }
return;
}
+/*
+ * Not all devices report physical dimensions from HID.
+ * Compute the default from hardcoded logical dimension
+ * and resolution before driver overwrites them.
+ */
+static void wacom_set_default_phy(struct wacom_features *features)
+{
+ if (features->x_resolution) {
+ features->x_phy = (features->x_max * 100) /
+ features->x_resolution;
+ features->y_phy = (features->y_max * 100) /
+ features->y_resolution;
+ }
+}
+
+static void wacom_calculate_res(struct wacom_features *features)
+{
+ features->x_resolution = wacom_calc_hid_res(features->x_max,
+ features->x_phy,
+ features->unit,
+ features->unitExpo);
+ features->y_resolution = wacom_calc_hid_res(features->y_max,
+ features->y_phy,
+ features->unit,
+ features->unitExpo);
+}
+
static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
@@ -1297,6 +1328,9 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
endpoint = &intf->cur_altsetting->endpoint[0].desc;
+ /* set the default size in case we do not get them from hid */
+ wacom_set_default_phy(features);
+
/* Retrieve the physical and logical size for touch devices */
error = wacom_retrieve_hid_descriptor(intf, features);
if (error)
@@ -1307,13 +1341,11 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
* HID descriptor. If this is the touch interface (wMaxPacketSize
* of WACOM_PKGLEN_BBTOUCH3), override the table values.
*/
- if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
+ if (features->type >= INTUOS5S && features->type <= INTUOSHT) {
if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
features->device_type = BTN_TOOL_FINGER;
features->pktlen = WACOM_PKGLEN_BBTOUCH3;
- wacom_set_phy_from_res(features);
-
features->x_max = 4096;
features->y_max = 4096;
} else {
@@ -1323,17 +1355,25 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
wacom_setup_device_quirks(features);
+ /* set unit to "100th of a mm" for devices not reported by HID */
+ if (!features->unit) {
+ features->unit = 0x11;
+ features->unitExpo = 16 - 3;
+ }
+ wacom_calculate_res(features);
+
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));
-
+ if (features->device_type != BTN_TOOL_FINGER)
+ strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX);
+ else if (features->touch_max)
+ strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX);
+ else
+ strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX);
other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
@@ -1366,8 +1406,15 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
usb_set_intfdata(intf, wacom);
if (features->quirks & WACOM_QUIRK_MONITOR) {
- if (usb_submit_urb(wacom->irq, GFP_KERNEL))
+ if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
+ error = -EIO;
goto fail5;
+ }
+ }
+
+ if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) {
+ if (wacom_wac->features.device_type == BTN_TOOL_FINGER)
+ wacom_wac->shared->touch_input = wacom_wac->input;
}
return 0;
@@ -1422,8 +1469,8 @@ static int wacom_resume(struct usb_interface *intf)
wacom_query_tablet_data(intf, features);
wacom_led_control(wacom);
- if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR)
- && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
+ if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) &&
+ usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
rv = -EIO;
mutex_unlock(&wacom->lock);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 11:43:08 +0000