HID: add omitted hid-zydacron.c file

Commit a9885c8f7bf62e251fc178 ("HID: Zydacron Remote Control driver") added
hid-zydracon driver by Don Prince, but mistakenly omitted hid-zydracon.c
file itself. Properly add the file.

Reported-by: Don Prince <dhprince.devel@yahoo.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 237 insertions, 0 deletions

diff --git a/drivers/hid/hid-zydacron.c b/drivers/hid/hid-zydacron.c
new file mode 100644
index 000000000000..9e8d35a203e4
--- /dev/null
+++ b/drivers/hid/hid-zydacron.c
@@ -0,0 +1,237 @@
+/*
+*  HID driver for zydacron remote control
+*
+*  Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
+*/
+
+/*
+* 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/module.h>
+
+#include "hid-ids.h"
+
+struct zc_device {
+        struct input_dev        *input_ep81;
+        unsigned short          last_key[4];
+};
+
+
+/*
+* Zydacron remote control has an invalid HID report descriptor,
+* that needs fixing before we can parse it.
+*/
+static void zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+        unsigned int rsize)
+{
+        if (rsize >= 253 &&
+                rdesc[0x96] == 0xbc && rdesc[0x97] == 0xff &&
+                rdesc[0xca] == 0xbc && rdesc[0xcb] == 0xff &&
+                rdesc[0xe1] == 0xbc && rdesc[0xe2] == 0xff) {
+                        dev_info(&hdev->dev,
+                                "fixing up zydacron remote control report "
+                                "descriptor\n");
+                        rdesc[0x96] = rdesc[0xca] = rdesc[0xe1] = 0x0c;
+                        rdesc[0x97] = rdesc[0xcb] = rdesc[0xe2] = 0x00;
+                }
+}
+
+#define zc_map_key_clear(c) \
+        hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
+
+static int zc_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+        struct hid_field *field, struct hid_usage *usage,
+        unsigned long **bit, int *max)
+{
+        int i;
+        struct zc_device *zc = hid_get_drvdata(hdev);
+        zc->input_ep81 = hi->input;
+
+        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
+                return 0;
+
+        dbg_hid("zynacron input mapping event [0x%x]\n",
+                usage->hid & HID_USAGE);
+
+        switch (usage->hid & HID_USAGE) {
+        /* report 2 */
+        case 0x10:
+                zc_map_key_clear(KEY_MODE);
+                break;
+        case 0x30:
+                zc_map_key_clear(KEY_SCREEN);
+                break;
+        case 0x70:
+                zc_map_key_clear(KEY_INFO);
+                break;
+        /* report 3 */
+        case 0x04:
+                zc_map_key_clear(KEY_RADIO);
+                break;
+        /* report 4 */
+        case 0x0d:
+                zc_map_key_clear(KEY_PVR);
+                break;
+        case 0x25:
+                zc_map_key_clear(KEY_TV);
+                break;
+        case 0x47:
+                zc_map_key_clear(KEY_AUDIO);
+                break;
+        case 0x49:
+                zc_map_key_clear(KEY_AUX);
+                break;
+        case 0x4a:
+                zc_map_key_clear(KEY_VIDEO);
+                break;
+        case 0x48:
+                zc_map_key_clear(KEY_DVD);
+                break;
+        case 0x24:
+                zc_map_key_clear(KEY_MENU);
+                break;
+        case 0x32:
+                zc_map_key_clear(KEY_TEXT);
+                break;
+        default:
+                return 0;
+        }
+
+        for (i = 0; i < 4; i++)
+                zc->last_key[i] = 0;
+
+        return 1;
+}
+
+static int zc_raw_event(struct hid_device *hdev, struct hid_report *report,
+         u8 *data, int size)
+{
+        struct zc_device *zc = hid_get_drvdata(hdev);
+        int ret = 0;
+        unsigned key;
+        unsigned short index;
+
+        if (report->id == data[0]) {
+
+                /* break keys */
+                for (index = 0; index < 4; index++) {
+                        key = zc->last_key[index];
+                        if (key) {
+                                input_event(zc->input_ep81, EV_KEY, key, 0);
+                                zc->last_key[index] = 0;
+                        }
+                }
+
+                key = 0;
+                switch (report->id) {
+                case 0x02:
+                case 0x03:
+                        switch (data[1]) {
+                        case 0x10:
+                                key = KEY_MODE;
+                                index = 0;
+                                break;
+                        case 0x30:
+                                key = KEY_SCREEN;
+                                index = 1;
+                                break;
+                        case 0x70:
+                                key = KEY_INFO;
+                                index = 2;
+                                break;
+                        case 0x04:
+                                key = KEY_RADIO;
+                                index = 3;
+                                break;
+                        }
+
+                        if (key) {
+                                input_event(zc->input_ep81, EV_KEY, key, 1);
+                                zc->last_key[index] = key;
+                        }
+
+                        ret = 1;
+                        break;
+                }
+        }
+
+        return ret;
+}
+
+static int zc_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+        int ret;
+        struct zc_device *zc;
+
+        zc = kzalloc(sizeof(*zc), GFP_KERNEL);
+        if (zc == NULL) {
+                dev_err(&hdev->dev, "zydacron: can't alloc descriptor\n");
+                return -ENOMEM;
+        }
+
+        hid_set_drvdata(hdev, zc);
+
+        ret = hid_parse(hdev);
+        if (ret) {
+                dev_err(&hdev->dev, "zydacron: parse failed\n");
+                goto err_free;
+        }
+
+        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+        if (ret) {
+                dev_err(&hdev->dev, "zydacron: hw start failed\n");
+                goto err_free;
+        }
+
+        return 0;
+err_free:
+        kfree(zc);
+
+        return ret;
+}
+
+static void zc_remove(struct hid_device *hdev)
+{
+        struct zc_device *zc = hid_get_drvdata(hdev);
+
+        hid_hw_stop(hdev);
+
+        if (NULL != zc)
+                kfree(zc);
+}
+
+static const struct hid_device_id zc_devices[] = {
+        { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
+        { }
+};
+MODULE_DEVICE_TABLE(hid, zc_devices);
+
+static struct hid_driver zc_driver = {
+        .name = "zydacron",
+        .id_table = zc_devices,
+        .report_fixup = zc_report_fixup,
+        .input_mapping = zc_input_mapping,
+        .raw_event = zc_raw_event,
+        .probe = zc_probe,
+        .remove = zc_remove,
+};
+
+static int __init zc_init(void)
+{
+        return hid_register_driver(&zc_driver);
+}
+
+static void __exit zc_exit(void)
+{
+        hid_unregister_driver(&zc_driver);
+}
+
+module_init(zc_init);
+module_exit(zc_exit);
+MODULE_LICENSE("GPL");