Add support for unknown Waltop tablet with product ID 0x0038.
This tablet is sold as Genius G-Pen F509.
Signed-off-by: Nikolai Kondrashov <spbnick@xxxxxxxxx>
---
drivers/hid/hid-core.c | 1 +
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-waltop.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 150 insertions(+), 0 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 6d923bd..02e32c1 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1568,6 +1568,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_XAT, USB_DEVICE_ID_XAT_CSR) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 0ce075b..c583077 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -718,6 +718,7 @@
#define USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH 0x0032
#define USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH 0x0034
#define USB_DEVICE_ID_WALTOP_Q_PAD 0x0037
+#define USB_DEVICE_ID_WALTOP_PID_0038 0x0038
#define USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH 0x0501
#define USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH 0x0500
diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c
index c1dce51..2cfd95c 100644
--- a/drivers/hid/hid-waltop.c
+++ b/drivers/hid/hid-waltop.c
@@ -211,6 +211,64 @@ static __u8 q_pad_rdesc_fixed[] = {
};
/*
+ * See description, device and HID report descriptors of tablet with PID 0038 at
+ * http://sf.net/apps/mediawiki/digimend/?title=Waltop_PID_0038
+ */
+
+/* Size of the original report descriptor of tablet with PID 0038 */
+#define PID_0038_RDESC_ORIG_SIZE 241
+
+/*
+ * Fixed report descriptor for tablet with PID 0038.
+ */
+static __u8 pid_0038_rdesc_fixed[] = {
+ 0x05, 0x0D, /* Usage Page (Digitizer), */
+ 0x09, 0x02, /* Usage (Pen), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x10, /* Report ID (16), */
+ 0x09, 0x20, /* Usage (Stylus), */
+ 0xA0, /* Collection (Physical), */
+ 0x09, 0x42, /* Usage (Tip Switch), */
+ 0x09, 0x44, /* Usage (Barrel Switch), */
+ 0x09, 0x46, /* Usage (Tablet Pick), */
+ 0x15, 0x01, /* Logical Minimum (1), */
+ 0x25, 0x03, /* Logical Maximum (3), */
+ 0x75, 0x04, /* Report Size (4), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x80, /* Input, */
+ 0x09, 0x32, /* Usage (In Range), */
+ 0x14, /* Logical Minimum (0), */
+ 0x25, 0x01, /* Logical Maximum (1), */
+ 0x75, 0x01, /* Report Size (1), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x81, 0x02, /* Input (Variable), */
+ 0x95, 0x03, /* Report Count (3), */
+ 0x81, 0x03, /* Input (Constant, Variable), */
+ 0x75, 0x10, /* Report Size (16), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x14, /* Logical Minimum (0), */
+ 0xA4, /* Push, */
+ 0x05, 0x01, /* Usage Page (Desktop), */
+ 0x65, 0x13, /* Unit (Inch), */
+ 0x55, 0xFD, /* Unit Exponent (-3), */
+ 0x34, /* Physical Minimum (0), */
+ 0x09, 0x30, /* Usage (X), */
+ 0x46, 0x2E, 0x22, /* Physical Maximum (8750), */
+ 0x26, 0x00, 0x46, /* Logical Maximum (17920), */
+ 0x81, 0x02, /* Input (Variable), */
+ 0x09, 0x31, /* Usage (Y), */
+ 0x46, 0x82, 0x14, /* Physical Maximum (5250), */
+ 0x26, 0x00, 0x2A, /* Logical Maximum (10752), */
+ 0x81, 0x02, /* Input (Variable), */
+ 0xB4, /* Pop, */
+ 0x09, 0x30, /* Usage (Tip Pressure), */
+ 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
+ 0x81, 0x02, /* Input (Variable), */
+ 0xC0, /* End Collection, */
+ 0xC0 /* End Collection */
+};
+
+/*
* See Media Tablet 10.6 inch description, device and HID report descriptors at
* http://sf.net/apps/mediawiki/digimend/?title=Waltop_Media_Tablet_10.6%22
*/
@@ -444,6 +502,47 @@ static __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
0xC0 /* End Collection */
};
+struct waltop_state {
+ u8 pressure0;
+ u8 pressure1;
+};
+
+static int waltop_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+ struct waltop_state *s;
+
+ s = kzalloc(sizeof(*s), GFP_KERNEL);
+ if (s == NULL) {
+ hid_err(hdev, "can't allocate device state\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ s->pressure0 = 0;
+ s->pressure1 = 0;
+
+ hid_set_drvdata(hdev, s);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "parse failed\n");
+ goto err;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "hw start failed\n");
+ goto err;
+ }
+
+ return 0;
+err:
+ kfree(s);
+ return ret;
+}
+
static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
@@ -466,6 +565,12 @@ static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
*rsize = sizeof(q_pad_rdesc_fixed);
}
break;
+ case USB_DEVICE_ID_WALTOP_PID_0038:
+ if (*rsize == PID_0038_RDESC_ORIG_SIZE) {
+ rdesc = pid_0038_rdesc_fixed;
+ *rsize = sizeof(pid_0038_rdesc_fixed);
+ }
+ break;
case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH:
if (*rsize == MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE) {
rdesc = media_tablet_10_6_inch_rdesc_fixed;
@@ -482,6 +587,44 @@ static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
return rdesc;
}
+static int waltop_raw_event(struct hid_device *hdev, struct hid_report *report,
+ u8 *data, int size)
+{
+ /* If this is a pen input report of a tablet with PID 0038 */
+ if (hdev->product == USB_DEVICE_ID_WALTOP_PID_0038 &&
+ report->type == HID_INPUT_REPORT &&
+ report->id == 16 &&
+ size == 8) {
+ struct waltop_state *s = hid_get_drvdata(hdev);
+
+ /*
+ * Ignore maximum pressure reported when a barrel button is
+ * pressed.
+ */
+
+ /* If a barrel button is pressed */
+ if ((data[1] & 0xF) > 1) {
+ /* Use the last known pressure */
+ data[6] = s->pressure0;
+ data[7] = s->pressure1;
+ } else {
+ /* Remember reported pressure */
+ s->pressure0 = data[6];
+ s->pressure1 = data[7];
+ }
+ }
+
+ return 0;
+}
+
+static void waltop_remove(struct hid_device *hdev)
+{
+ struct waltop_state *s = hid_get_drvdata(hdev);
+
+ hid_hw_stop(hdev);
+ kfree(s);
+}
+
static const struct hid_device_id waltop_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
@@ -490,6 +633,8 @@ static const struct hid_device_id waltop_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_Q_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
+ USB_DEVICE_ID_WALTOP_PID_0038) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
@@ -500,7 +645,10 @@ MODULE_DEVICE_TABLE(hid, waltop_devices);
static struct hid_driver waltop_driver = {
.name = "waltop",
.id_table = waltop_devices,
+ .probe = waltop_probe,
.report_fixup = waltop_report_fixup,
+ .raw_event = waltop_raw_event,
+ .remove = waltop_remove,
};
static int __init waltop_init(void)
--
1.7.9
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