HID: move cypress quirks
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-cypress.c b/drivers/hid/hid-cypress.c
new file mode 100644
index 0000000..a1e13f1
--- /dev/null
+++ b/drivers/hid/hid-cypress.c
@@ -0,0 +1,158 @@
+/*
+ * HID driver for some cypress "special" devices
+ *
+ * Copyright (c) 1999 Andreas Gal
+ * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
+ * Copyright (c) 2006-2007 Jiri Kosina
+ * Copyright (c) 2007 Paul Walmsley
+ * Copyright (c) 2008 Jiri Slaby
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/input.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+#define CP_RDESC_SWAPPED_MIN_MAX 0x01
+#define CP_2WHEEL_MOUSE_HACK 0x02
+#define CP_2WHEEL_MOUSE_HACK_ON 0x04
+
+/*
+ * Some USB barcode readers from cypress have usage min and usage max in
+ * the wrong order
+ */
+static void cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int rsize)
+{
+ unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+ unsigned int i;
+
+ if (!(quirks & CP_RDESC_SWAPPED_MIN_MAX))
+ return;
+
+ for (i = 0; i < rsize - 4; i++)
+ if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
+ __u8 tmp;
+
+ rdesc[i] = 0x19;
+ rdesc[i + 2] = 0x29;
+ tmp = rdesc[i + 3];
+ rdesc[i + 3] = rdesc[i + 1];
+ rdesc[i + 1] = tmp;
+ }
+}
+
+static int cp_input_mapped(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 & CP_2WHEEL_MOUSE_HACK))
+ return 0;
+
+ if (usage->type == EV_REL && usage->code == REL_WHEEL)
+ set_bit(REL_HWHEEL, *bit);
+ if (usage->hid == 0x00090005)
+ return -1;
+
+ return 0;
+}
+
+static int cp_event(struct hid_device *hdev, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+ if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
+ !usage->type || !(quirks & CP_2WHEEL_MOUSE_HACK))
+ return 0;
+
+ if (usage->hid == 0x00090005) {
+ if (value)
+ quirks |= CP_2WHEEL_MOUSE_HACK_ON;
+ else
+ quirks &= ~CP_2WHEEL_MOUSE_HACK_ON;
+ hid_set_drvdata(hdev, (void *)quirks);
+ return 1;
+ }
+
+ if (usage->code == REL_WHEEL && (quirks & CP_2WHEEL_MOUSE_HACK_ON)) {
+ struct input_dev *input = field->hidinput->input;
+
+ input_event(input, usage->type, REL_HWHEEL, value);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int cp_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ unsigned long quirks = id->driver_data;
+ int ret;
+
+ hid_set_drvdata(hdev, (void *)quirks);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ dev_err(&hdev->dev, "parse failed\n");
+ goto err_free;
+ }
+
+ ret = hid_hw_start(hdev);
+ if (ret) {
+ dev_err(&hdev->dev, "hw start failed\n");
+ goto err_free;
+ }
+
+ return 0;
+err_free:
+ return ret;
+}
+
+static const struct hid_device_id cp_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1),
+ .driver_data = CP_RDESC_SWAPPED_MIN_MAX },
+ { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2),
+ .driver_data = CP_RDESC_SWAPPED_MIN_MAX },
+ { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE),
+ .driver_data = CP_2WHEEL_MOUSE_HACK },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, cp_devices);
+
+static struct hid_driver cp_driver = {
+ .name = "cypress",
+ .id_table = cp_devices,
+ .report_fixup = cp_report_fixup,
+ .input_mapped = cp_input_mapped,
+ .event = cp_event,
+ .probe = cp_probe,
+};
+
+static int cp_init(void)
+{
+ return hid_register_driver(&cp_driver);
+}
+
+static void cp_exit(void)
+{
+ hid_unregister_driver(&cp_driver);
+}
+
+module_init(cp_init);
+module_exit(cp_exit);
+MODULE_LICENSE("GPL");
+
+HID_COMPAT_LOAD_DRIVER(cypress);