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-rw-r--r--drivers/input/tablet/Kconfig1
-rw-r--r--drivers/input/tablet/wacom.h9
-rw-r--r--drivers/input/tablet/wacom_sys.c231
-rw-r--r--drivers/input/tablet/wacom_wac.c49
-rw-r--r--drivers/input/tablet/wacom_wac.h6
5 files changed, 264 insertions, 32 deletions
diff --git a/drivers/input/tablet/Kconfig b/drivers/input/tablet/Kconfig
index e53f4081a586..bed7cbf84cfd 100644
--- a/drivers/input/tablet/Kconfig
+++ b/drivers/input/tablet/Kconfig
@@ -76,6 +76,7 @@ config TABLET_USB_KBTAB
config TABLET_USB_WACOM
tristate "Wacom Intuos/Graphire tablet support (USB)"
depends on USB_ARCH_HAS_HCD
+ select POWER_SUPPLY
select USB
select NEW_LEDS
select LEDS_CLASS
diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index 0783864a7dc2..b4842d0e61dd 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -88,6 +88,7 @@
#include <linux/mod_devicetable.h>
#include <linux/init.h>
#include <linux/usb/input.h>
+#include <linux/power_supply.h>
#include <asm/unaligned.h>
/*
@@ -112,6 +113,7 @@ struct wacom {
struct urb *irq;
struct wacom_wac wacom_wac;
struct mutex lock;
+ struct work_struct work;
bool open;
char phys[32];
struct wacom_led {
@@ -120,8 +122,15 @@ struct wacom {
u8 hlv; /* status led brightness button pressed (1..127) */
u8 img_lum; /* OLED matrix display brightness */
} led;
+ struct power_supply battery;
};
+static inline void wacom_schedule_work(struct wacom_wac *wacom_wac)
+{
+ struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
+ schedule_work(&wacom->work);
+}
+
extern const struct usb_device_id wacom_ids[];
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index ca28066dc81e..0d269212931e 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -167,6 +167,19 @@ static void wacom_close(struct input_dev *dev)
usb_autopm_put_interface(wacom->intf);
}
+/*
+ * 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)
{
@@ -178,15 +191,7 @@ static int wacom_parse_logical_collection(unsigned char *report,
features->pktlen = WACOM_PKGLEN_BBTOUCH3;
features->device_type = BTN_TOOL_FINGER;
- /*
- * Stylus and Touch have same active area
- * so compute physical size based on stylus
- * data before its overwritten.
- */
- features->x_phy =
- (features->x_max * 100) / features->x_resolution;
- features->y_phy =
- (features->y_max * 100) / features->y_resolution;
+ wacom_set_phy_from_res(features);
features->x_max = features->y_max =
get_unaligned_le16(&report[10]);
@@ -422,6 +427,7 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
report_id, rep_data, 4, 1);
} while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
} else if (features->type != TABLETPC &&
+ features->type != WIRELESS &&
features->device_type == BTN_TOOL_PEN) {
do {
rep_data[0] = 2;
@@ -454,6 +460,21 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
features->pressure_fuzz = 0;
features->distance_fuzz = 0;
+ /*
+ * The wireless device HID is basic and layout conflicts with
+ * other tablets (monitor and touch interface can look like pen).
+ * Skip the query for this type and modify defaults based on
+ * interface number.
+ */
+ if (features->type == WIRELESS) {
+ if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
+ features->device_type = 0;
+ } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) {
+ features->device_type = BTN_TOOL_DOUBLETAP;
+ features->pktlen = WACOM_PKGLEN_BBTOUCH3;
+ }
+ }
+
/* only Tablet PCs and Bamboo P&T need to retrieve the info */
if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) &&
(features->type != BAMBOO_PT))
@@ -822,6 +843,152 @@ static void wacom_destroy_leds(struct wacom *wacom)
}
}
+static enum power_supply_property wacom_battery_props[] = {
+ POWER_SUPPLY_PROP_CAPACITY
+};
+
+static int wacom_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct wacom *wacom = container_of(psy, struct wacom, battery);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CAPACITY:
+ val->intval =
+ wacom->wacom_wac.battery_capacity * 100 / 31;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int wacom_initialize_battery(struct wacom *wacom)
+{
+ int error = 0;
+
+ if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) {
+ wacom->battery.properties = wacom_battery_props;
+ wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
+ wacom->battery.get_property = wacom_battery_get_property;
+ wacom->battery.name = "wacom_battery";
+ wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY;
+ wacom->battery.use_for_apm = 0;
+
+ error = power_supply_register(&wacom->usbdev->dev,
+ &wacom->battery);
+ }
+
+ return error;
+}
+
+static void wacom_destroy_battery(struct wacom *wacom)
+{
+ if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR)
+ power_supply_unregister(&wacom->battery);
+}
+
+static int wacom_register_input(struct wacom *wacom)
+{
+ struct input_dev *input_dev;
+ struct usb_interface *intf = wacom->intf;
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
+ int error;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = wacom_wac->name;
+ input_dev->dev.parent = &intf->dev;
+ input_dev->open = wacom_open;
+ input_dev->close = wacom_close;
+ usb_to_input_id(dev, &input_dev->id);
+ input_set_drvdata(input_dev, wacom);
+
+ wacom_wac->input = input_dev;
+ wacom_setup_input_capabilities(input_dev, wacom_wac);
+
+ error = input_register_device(input_dev);
+ if (error) {
+ input_free_device(input_dev);
+ wacom_wac->input = NULL;
+ }
+
+ return error;
+}
+
+static void wacom_wireless_work(struct work_struct *work)
+{
+ struct wacom *wacom = container_of(work, struct wacom, work);
+ struct usb_device *usbdev = wacom->usbdev;
+ struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+
+ /*
+ * Regardless if this is a disconnect or a new tablet,
+ * remove any existing input devices.
+ */
+
+ /* Stylus interface */
+ wacom = usb_get_intfdata(usbdev->config->interface[1]);
+ if (wacom->wacom_wac.input)
+ input_unregister_device(wacom->wacom_wac.input);
+ wacom->wacom_wac.input = 0;
+
+ /* Touch interface */
+ wacom = usb_get_intfdata(usbdev->config->interface[2]);
+ if (wacom->wacom_wac.input)
+ input_unregister_device(wacom->wacom_wac.input);
+ wacom->wacom_wac.input = 0;
+
+ if (wacom_wac->pid == 0) {
+ printk(KERN_INFO "wacom: wireless tablet disconnected\n");
+ } else {
+ const struct usb_device_id *id = wacom_ids;
+
+ printk(KERN_INFO
+ "wacom: wireless tablet connected with PID %x\n",
+ wacom_wac->pid);
+
+ while (id->match_flags) {
+ if (id->idVendor == USB_VENDOR_ID_WACOM &&
+ id->idProduct == wacom_wac->pid)
+ break;
+ id++;
+ }
+
+ if (!id->match_flags) {
+ printk(KERN_INFO
+ "wacom: ignorning unknown PID.\n");
+ return;
+ }
+
+ /* Stylus interface */
+ wacom = usb_get_intfdata(usbdev->config->interface[1]);
+ wacom_wac = &wacom->wacom_wac;
+ wacom_wac->features =
+ *((struct wacom_features *)id->driver_info);
+ wacom_wac->features.device_type = BTN_TOOL_PEN;
+ wacom_register_input(wacom);
+
+ /* Touch interface */
+ wacom = usb_get_intfdata(usbdev->config->interface[2]);
+ wacom_wac = &wacom->wacom_wac;
+ wacom_wac->features =
+ *((struct wacom_features *)id->driver_info);
+ wacom_wac->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
+ wacom_wac->features.device_type = BTN_TOOL_FINGER;
+ wacom_set_phy_from_res(&wacom_wac->features);
+ wacom_wac->features.x_max = wacom_wac->features.y_max = 4096;
+ wacom_register_input(wacom);
+ }
+}
+
static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
@@ -829,18 +996,14 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
struct wacom *wacom;
struct wacom_wac *wacom_wac;
struct wacom_features *features;
- struct input_dev *input_dev;
int error;
if (!id->driver_info)
return -EINVAL;
wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!wacom || !input_dev) {
- error = -ENOMEM;
- goto fail1;
- }
+ if (!wacom)
+ return -ENOMEM;
wacom_wac = &wacom->wacom_wac;
wacom_wac->features = *((struct wacom_features *)id->driver_info);
@@ -866,11 +1029,10 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
wacom->usbdev = dev;
wacom->intf = intf;
mutex_init(&wacom->lock);
+ INIT_WORK(&wacom->work, wacom_wireless_work);
usb_make_path(dev, wacom->phys, sizeof(wacom->phys));
strlcat(wacom->phys, "/input0", sizeof(wacom->phys));
- wacom_wac->input = input_dev;
-
endpoint = &intf->cur_altsetting->endpoint[0].desc;
/* Retrieve the physical and logical size for OEM devices */
@@ -894,15 +1056,6 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
goto fail3;
}
- input_dev->name = wacom_wac->name;
- input_dev->dev.parent = &intf->dev;
- input_dev->open = wacom_open;
- input_dev->close = wacom_close;
- usb_to_input_id(dev, &input_dev->id);
- input_set_drvdata(input_dev, wacom);
-
- wacom_setup_input_capabilities(input_dev, wacom_wac);
-
usb_fill_int_urb(wacom->irq, dev,
usb_rcvintpipe(dev, endpoint->bEndpointAddress),
wacom_wac->data, features->pktlen,
@@ -914,22 +1067,34 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
if (error)
goto fail4;
- error = input_register_device(input_dev);
+ error = wacom_initialize_battery(wacom);
if (error)
goto fail5;
+ if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
+ error = wacom_register_input(wacom);
+ if (error)
+ goto fail6;
+ }
+
/* Note that if query fails it is not a hard failure */
wacom_query_tablet_data(intf, features);
usb_set_intfdata(intf, wacom);
+
+ if (features->quirks & WACOM_QUIRK_MONITOR) {
+ if (usb_submit_urb(wacom->irq, GFP_KERNEL))
+ goto fail5;
+ }
+
return 0;
+ fail6: wacom_destroy_battery(wacom);
fail5: wacom_destroy_leds(wacom);
fail4: wacom_remove_shared_data(wacom_wac);
fail3: usb_free_urb(wacom->irq);
fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
- fail1: input_free_device(input_dev);
- kfree(wacom);
+ fail1: kfree(wacom);
return error;
}
@@ -940,7 +1105,10 @@ static void wacom_disconnect(struct usb_interface *intf)
usb_set_intfdata(intf, NULL);
usb_kill_urb(wacom->irq);
- input_unregister_device(wacom->wacom_wac.input);
+ cancel_work_sync(&wacom->work);
+ if (wacom->wacom_wac.input)
+ input_unregister_device(wacom->wacom_wac.input);
+ wacom_destroy_battery(wacom);
wacom_destroy_leds(wacom);
usb_free_urb(wacom->irq);
usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
@@ -972,7 +1140,8 @@ static int wacom_resume(struct usb_interface *intf)
wacom_query_tablet_data(intf, features);
wacom_led_control(wacom);
- if (wacom->open && 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);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 89a96427faa0..cecd35c8f0b3 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1044,6 +1044,35 @@ static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
return 0;
}
+static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
+{
+ unsigned char *data = wacom->data;
+ int connected;
+
+ if (len != WACOM_PKGLEN_WIRELESS || data[0] != 0x80)
+ return 0;
+
+ connected = data[1] & 0x01;
+ if (connected) {
+ int pid, battery;
+
+ pid = get_unaligned_be16(&data[6]);
+ battery = data[5] & 0x3f;
+ if (wacom->pid != pid) {
+ wacom->pid = pid;
+ wacom_schedule_work(wacom);
+ }
+ wacom->battery_capacity = battery;
+ } else if (wacom->pid != 0) {
+ /* disconnected while previously connected */
+ wacom->pid = 0;
+ wacom_schedule_work(wacom);
+ wacom->battery_capacity = 0;
+ }
+
+ return 0;
+}
+
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
{
bool sync;
@@ -1094,6 +1123,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
sync = wacom_bpt_irq(wacom_wac, len);
break;
+ case WIRELESS:
+ sync = wacom_wireless_irq(wacom_wac, len);
+ break;
+
default:
sync = false;
break;
@@ -1155,7 +1188,7 @@ void wacom_setup_device_quirks(struct wacom_features *features)
/* these device have multiple inputs */
if (features->type == TABLETPC || features->type == TABLETPC2FG ||
- features->type == BAMBOO_PT)
+ features->type == BAMBOO_PT || features->type == WIRELESS)
features->quirks |= WACOM_QUIRK_MULTI_INPUT;
/* quirk for bamboo touch with 2 low res touches */
@@ -1167,6 +1200,16 @@ void wacom_setup_device_quirks(struct wacom_features *features)
features->y_fuzz <<= 5;
features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
}
+
+ if (features->type == WIRELESS) {
+
+ /* monitor never has input and pen/touch have delayed create */
+ features->quirks |= WACOM_QUIRK_NO_INPUT;
+
+ /* must be monitor interface if no device_type set */
+ if (!features->device_type)
+ features->quirks |= WACOM_QUIRK_MONITOR;
+ }
}
static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
@@ -1640,6 +1683,9 @@ static const struct wacom_features wacom_features_0xEC =
static const struct wacom_features wacom_features_0x47 =
{ "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023,
31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x84 =
+ { "Wacom Wireless Receiver", WACOM_PKGLEN_WIRELESS, 0, 0, 0,
+ 0, WIRELESS, 0, 0 };
static const struct wacom_features wacom_features_0xD0 =
{ "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -1766,6 +1812,7 @@ const struct usb_device_id wacom_ids[] = {
{ USB_DEVICE_DETAILED(0xCE, USB_CLASS_HID,
USB_INTERFACE_SUBCLASS_BOOT,
USB_INTERFACE_PROTOCOL_MOUSE) },
+ { USB_DEVICE_WACOM(0x84) },
{ USB_DEVICE_WACOM(0xD0) },
{ USB_DEVICE_WACOM(0xD1) },
{ USB_DEVICE_WACOM(0xD2) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 4f0ba21b0196..ba5a334e54d6 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -24,6 +24,7 @@
#define WACOM_PKGLEN_BBTOUCH 20
#define WACOM_PKGLEN_BBTOUCH3 64
#define WACOM_PKGLEN_BBPEN 10
+#define WACOM_PKGLEN_WIRELESS 32
/* device IDs */
#define STYLUS_DEVICE_ID 0x02
@@ -45,6 +46,8 @@
/* device quirks */
#define WACOM_QUIRK_MULTI_INPUT 0x0001
#define WACOM_QUIRK_BBTOUCH_LOWRES 0x0002
+#define WACOM_QUIRK_NO_INPUT 0x0004
+#define WACOM_QUIRK_MONITOR 0x0008
enum {
PENPARTNER = 0,
@@ -54,6 +57,7 @@ enum {
PL,
DTU,
BAMBOO_PT,
+ WIRELESS,
INTUOS,
INTUOS3S,
INTUOS3,
@@ -107,6 +111,8 @@ struct wacom_wac {
struct wacom_features features;
struct wacom_shared *shared;
struct input_dev *input;
+ int pid;
+ int battery_capacity;
};
#endif
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-21 08:37:56 +0300