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path: root/drivers/hid/hid-ite.c
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Diffstat (limited to 'drivers/hid/hid-ite.c')
-rw-r--r--drivers/hid/hid-ite.c61
1 files changed, 60 insertions, 1 deletions
diff --git a/drivers/hid/hid-ite.c b/drivers/hid/hid-ite.c
index 044a93f3c117..742c052b0110 100644
--- a/drivers/hid/hid-ite.c
+++ b/drivers/hid/hid-ite.c
@@ -11,6 +11,48 @@
#include "hid-ids.h"
+#define QUIRK_TOUCHPAD_ON_OFF_REPORT BIT(0)
+
+static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
+{
+ unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+ if (quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) {
+ if (*rsize == 188 && rdesc[162] == 0x81 && rdesc[163] == 0x02) {
+ hid_info(hdev, "Fixing up ITE keyboard report descriptor\n");
+ rdesc[163] = HID_MAIN_ITEM_RELATIVE;
+ }
+ }
+
+ return rdesc;
+}
+
+static int ite_input_mapping(struct hid_device *hdev,
+ struct hid_input *hi, struct hid_field *field,
+ struct hid_usage *usage, unsigned long **bit,
+ int *max)
+{
+
+ unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+ if ((quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) &&
+ (usage->hid & HID_USAGE_PAGE) == 0x00880000) {
+ if (usage->hid == 0x00880078) {
+ /* Touchpad on, userspace expects F22 for this */
+ hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F22);
+ return 1;
+ }
+ if (usage->hid == 0x00880079) {
+ /* Touchpad off, userspace expects F23 for this */
+ hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F23);
+ return 1;
+ }
+ return -1;
+ }
+
+ return 0;
+}
+
static int ite_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
@@ -37,13 +79,27 @@ static int ite_event(struct hid_device *hdev, struct hid_field *field,
return 0;
}
+static int ite_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+
+ hid_set_drvdata(hdev, (void *)id->driver_data);
+
+ ret = hid_open_report(hdev);
+ if (ret)
+ return ret;
+
+ return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
static const struct hid_device_id ite_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
/* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
- USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012) },
+ USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012),
+ .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
@@ -55,6 +111,9 @@ MODULE_DEVICE_TABLE(hid, ite_devices);
static struct hid_driver ite_driver = {
.name = "itetech",
.id_table = ite_devices,
+ .probe = ite_probe,
+ .report_fixup = ite_report_fixup,
+ .input_mapping = ite_input_mapping,
.event = ite_event,
};
module_hid_driver(ite_driver);