summaryrefslogtreecommitdiffstats
path: root/drivers/hid/hid-glorious.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hid/hid-glorious.c')
-rw-r--r--drivers/hid/hid-glorious.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/hid/hid-glorious.c b/drivers/hid/hid-glorious.c
new file mode 100644
index 000000000..281b3a718
--- /dev/null
+++ b/drivers/hid/hid-glorious.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * USB HID driver for Glorious PC Gaming Race
+ * Glorious Model O, O- and D mice.
+ *
+ * Copyright (c) 2020 Samuel Čavoj <sammko@sammserver.com>
+ */
+
+/*
+ */
+
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+MODULE_AUTHOR("Samuel Čavoj <sammko@sammserver.com>");
+MODULE_DESCRIPTION("HID driver for Glorious PC Gaming Race mice");
+
+/*
+ * Glorious Model O and O- specify the const flag in the consumer input
+ * report descriptor, which leads to inputs being ignored. Fix this
+ * by patching the descriptor.
+ *
+ * Glorious Model I incorrectly specifes the Usage Minimum for its
+ * keyboard HID report, causing keycodes to be misinterpreted.
+ * Fix this by setting Usage Minimum to 0 in that report.
+ */
+static __u8 *glorious_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
+{
+ if (*rsize == 213 &&
+ rdesc[84] == 129 && rdesc[112] == 129 && rdesc[140] == 129 &&
+ rdesc[85] == 3 && rdesc[113] == 3 && rdesc[141] == 3) {
+ hid_info(hdev, "patching Glorious Model O consumer control report descriptor\n");
+ rdesc[85] = rdesc[113] = rdesc[141] = \
+ HID_MAIN_ITEM_VARIABLE | HID_MAIN_ITEM_RELATIVE;
+ }
+ if (*rsize == 156 && rdesc[41] == 1) {
+ hid_info(hdev, "patching Glorious Model I keyboard report descriptor\n");
+ rdesc[41] = 0;
+ }
+ return rdesc;
+}
+
+static void glorious_update_name(struct hid_device *hdev)
+{
+ const char *model = "Device";
+
+ switch (hdev->product) {
+ case USB_DEVICE_ID_GLORIOUS_MODEL_O:
+ model = "Model O"; break;
+ case USB_DEVICE_ID_GLORIOUS_MODEL_D:
+ model = "Model D"; break;
+ case USB_DEVICE_ID_GLORIOUS_MODEL_I:
+ model = "Model I"; break;
+ }
+
+ snprintf(hdev->name, sizeof(hdev->name), "%s %s", "Glorious", model);
+}
+
+static int glorious_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+
+ hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
+
+ ret = hid_parse(hdev);
+ if (ret)
+ return ret;
+
+ glorious_update_name(hdev);
+
+ return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
+static const struct hid_device_id glorious_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_SINOWEALTH,
+ USB_DEVICE_ID_GLORIOUS_MODEL_O) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SINOWEALTH,
+ USB_DEVICE_ID_GLORIOUS_MODEL_D) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LAVIEW,
+ USB_DEVICE_ID_GLORIOUS_MODEL_I) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, glorious_devices);
+
+static struct hid_driver glorious_driver = {
+ .name = "glorious",
+ .id_table = glorious_devices,
+ .probe = glorious_probe,
+ .report_fixup = glorious_report_fixup
+};
+
+module_hid_driver(glorious_driver);
+
+MODULE_LICENSE("GPL");